From: "Mike Pagano" <mpagano@gentoo.org>
To: gentoo-commits@lists.gentoo.org
Subject: [gentoo-commits] proj/linux-patches:4.9 commit in: /
Date: Sun, 25 Aug 2019 17:34:17 +0000 (UTC) [thread overview]
Message-ID: <1566754438.68b3c0c8413c5ccec635b4d4bf996083d288ba4f.mpagano@gentoo> (raw)
commit: 68b3c0c8413c5ccec635b4d4bf996083d288ba4f
Author: Mike Pagano <mpagano <AT> gentoo <DOT> org>
AuthorDate: Sun Aug 25 17:33:58 2019 +0000
Commit: Mike Pagano <mpagano <AT> gentoo <DOT> org>
CommitDate: Sun Aug 25 17:33:58 2019 +0000
URL: https://gitweb.gentoo.org/proj/linux-patches.git/commit/?id=68b3c0c8
Linux patch 4.9.190
Signed-off-by: Mike Pagano <mpagano <AT> gentoo.org>
0000_README | 4 +
1189_linux-4.9.190.patch | 4381 ++++++++++++++++++++++++++++++++++++++++++++++
2 files changed, 4385 insertions(+)
diff --git a/0000_README b/0000_README
index 06f5715..9555d77 100644
--- a/0000_README
+++ b/0000_README
@@ -799,6 +799,10 @@ Patch: 1188_linux-4.9.189.patch
From: http://www.kernel.org
Desc: Linux 4.9.189
+Patch: 1189_linux-4.9.190.patch
+From: http://www.kernel.org
+Desc: Linux 4.9.190
+
Patch: 1500_XATTR_USER_PREFIX.patch
From: https://bugs.gentoo.org/show_bug.cgi?id=470644
Desc: Support for namespace user.pax.* on tmpfs.
diff --git a/1189_linux-4.9.190.patch b/1189_linux-4.9.190.patch
new file mode 100644
index 0000000..d34ee6d
--- /dev/null
+++ b/1189_linux-4.9.190.patch
@@ -0,0 +1,4381 @@
+diff --git a/Documentation/siphash.txt b/Documentation/siphash.txt
+new file mode 100644
+index 000000000000..908d348ff777
+--- /dev/null
++++ b/Documentation/siphash.txt
+@@ -0,0 +1,175 @@
++ SipHash - a short input PRF
++-----------------------------------------------
++Written by Jason A. Donenfeld <jason@zx2c4.com>
++
++SipHash is a cryptographically secure PRF -- a keyed hash function -- that
++performs very well for short inputs, hence the name. It was designed by
++cryptographers Daniel J. Bernstein and Jean-Philippe Aumasson. It is intended
++as a replacement for some uses of: `jhash`, `md5_transform`, `sha_transform`,
++and so forth.
++
++SipHash takes a secret key filled with randomly generated numbers and either
++an input buffer or several input integers. It spits out an integer that is
++indistinguishable from random. You may then use that integer as part of secure
++sequence numbers, secure cookies, or mask it off for use in a hash table.
++
++1. Generating a key
++
++Keys should always be generated from a cryptographically secure source of
++random numbers, either using get_random_bytes or get_random_once:
++
++siphash_key_t key;
++get_random_bytes(&key, sizeof(key));
++
++If you're not deriving your key from here, you're doing it wrong.
++
++2. Using the functions
++
++There are two variants of the function, one that takes a list of integers, and
++one that takes a buffer:
++
++u64 siphash(const void *data, size_t len, const siphash_key_t *key);
++
++And:
++
++u64 siphash_1u64(u64, const siphash_key_t *key);
++u64 siphash_2u64(u64, u64, const siphash_key_t *key);
++u64 siphash_3u64(u64, u64, u64, const siphash_key_t *key);
++u64 siphash_4u64(u64, u64, u64, u64, const siphash_key_t *key);
++u64 siphash_1u32(u32, const siphash_key_t *key);
++u64 siphash_2u32(u32, u32, const siphash_key_t *key);
++u64 siphash_3u32(u32, u32, u32, const siphash_key_t *key);
++u64 siphash_4u32(u32, u32, u32, u32, const siphash_key_t *key);
++
++If you pass the generic siphash function something of a constant length, it
++will constant fold at compile-time and automatically choose one of the
++optimized functions.
++
++3. Hashtable key function usage:
++
++struct some_hashtable {
++ DECLARE_HASHTABLE(hashtable, 8);
++ siphash_key_t key;
++};
++
++void init_hashtable(struct some_hashtable *table)
++{
++ get_random_bytes(&table->key, sizeof(table->key));
++}
++
++static inline hlist_head *some_hashtable_bucket(struct some_hashtable *table, struct interesting_input *input)
++{
++ return &table->hashtable[siphash(input, sizeof(*input), &table->key) & (HASH_SIZE(table->hashtable) - 1)];
++}
++
++You may then iterate like usual over the returned hash bucket.
++
++4. Security
++
++SipHash has a very high security margin, with its 128-bit key. So long as the
++key is kept secret, it is impossible for an attacker to guess the outputs of
++the function, even if being able to observe many outputs, since 2^128 outputs
++is significant.
++
++Linux implements the "2-4" variant of SipHash.
++
++5. Struct-passing Pitfalls
++
++Often times the XuY functions will not be large enough, and instead you'll
++want to pass a pre-filled struct to siphash. When doing this, it's important
++to always ensure the struct has no padding holes. The easiest way to do this
++is to simply arrange the members of the struct in descending order of size,
++and to use offsetendof() instead of sizeof() for getting the size. For
++performance reasons, if possible, it's probably a good thing to align the
++struct to the right boundary. Here's an example:
++
++const struct {
++ struct in6_addr saddr;
++ u32 counter;
++ u16 dport;
++} __aligned(SIPHASH_ALIGNMENT) combined = {
++ .saddr = *(struct in6_addr *)saddr,
++ .counter = counter,
++ .dport = dport
++};
++u64 h = siphash(&combined, offsetofend(typeof(combined), dport), &secret);
++
++6. Resources
++
++Read the SipHash paper if you're interested in learning more:
++https://131002.net/siphash/siphash.pdf
++
++
++~=~=~=~=~=~=~=~=~=~=~=~=~=~=~=~=~=~=~=~=~=~=~=~=~=~=~=~=~=~=~=~=~=~=~
++
++HalfSipHash - SipHash's insecure younger cousin
++-----------------------------------------------
++Written by Jason A. Donenfeld <jason@zx2c4.com>
++
++On the off-chance that SipHash is not fast enough for your needs, you might be
++able to justify using HalfSipHash, a terrifying but potentially useful
++possibility. HalfSipHash cuts SipHash's rounds down from "2-4" to "1-3" and,
++even scarier, uses an easily brute-forcable 64-bit key (with a 32-bit output)
++instead of SipHash's 128-bit key. However, this may appeal to some
++high-performance `jhash` users.
++
++Danger!
++
++Do not ever use HalfSipHash except for as a hashtable key function, and only
++then when you can be absolutely certain that the outputs will never be
++transmitted out of the kernel. This is only remotely useful over `jhash` as a
++means of mitigating hashtable flooding denial of service attacks.
++
++1. Generating a key
++
++Keys should always be generated from a cryptographically secure source of
++random numbers, either using get_random_bytes or get_random_once:
++
++hsiphash_key_t key;
++get_random_bytes(&key, sizeof(key));
++
++If you're not deriving your key from here, you're doing it wrong.
++
++2. Using the functions
++
++There are two variants of the function, one that takes a list of integers, and
++one that takes a buffer:
++
++u32 hsiphash(const void *data, size_t len, const hsiphash_key_t *key);
++
++And:
++
++u32 hsiphash_1u32(u32, const hsiphash_key_t *key);
++u32 hsiphash_2u32(u32, u32, const hsiphash_key_t *key);
++u32 hsiphash_3u32(u32, u32, u32, const hsiphash_key_t *key);
++u32 hsiphash_4u32(u32, u32, u32, u32, const hsiphash_key_t *key);
++
++If you pass the generic hsiphash function something of a constant length, it
++will constant fold at compile-time and automatically choose one of the
++optimized functions.
++
++3. Hashtable key function usage:
++
++struct some_hashtable {
++ DECLARE_HASHTABLE(hashtable, 8);
++ hsiphash_key_t key;
++};
++
++void init_hashtable(struct some_hashtable *table)
++{
++ get_random_bytes(&table->key, sizeof(table->key));
++}
++
++static inline hlist_head *some_hashtable_bucket(struct some_hashtable *table, struct interesting_input *input)
++{
++ return &table->hashtable[hsiphash(input, sizeof(*input), &table->key) & (HASH_SIZE(table->hashtable) - 1)];
++}
++
++You may then iterate like usual over the returned hash bucket.
++
++4. Performance
++
++HalfSipHash is roughly 3 times slower than JenkinsHash. For many replacements,
++this will not be a problem, as the hashtable lookup isn't the bottleneck. And
++in general, this is probably a good sacrifice to make for the security and DoS
++resistance of HalfSipHash.
+diff --git a/Documentation/sysctl/net.txt b/Documentation/sysctl/net.txt
+index f0480f7ea740..4d5e3b0cab3f 100644
+--- a/Documentation/sysctl/net.txt
++++ b/Documentation/sysctl/net.txt
+@@ -54,6 +54,14 @@ Values :
+ 1 - enable JIT hardening for unprivileged users only
+ 2 - enable JIT hardening for all users
+
++bpf_jit_limit
++-------------
++
++This enforces a global limit for memory allocations to the BPF JIT
++compiler in order to reject unprivileged JIT requests once it has
++been surpassed. bpf_jit_limit contains the value of the global limit
++in bytes.
++
+ dev_weight
+ --------------
+
+diff --git a/MAINTAINERS b/MAINTAINERS
+index 4f559f5b3a89..98ee40591a9b 100644
+--- a/MAINTAINERS
++++ b/MAINTAINERS
+@@ -11068,6 +11068,13 @@ F: arch/arm/mach-s3c24xx/mach-bast.c
+ F: arch/arm/mach-s3c24xx/bast-ide.c
+ F: arch/arm/mach-s3c24xx/bast-irq.c
+
++SIPHASH PRF ROUTINES
++M: Jason A. Donenfeld <Jason@zx2c4.com>
++S: Maintained
++F: lib/siphash.c
++F: lib/test_siphash.c
++F: include/linux/siphash.h
++
+ TI DAVINCI MACHINE SUPPORT
+ M: Sekhar Nori <nsekhar@ti.com>
+ M: Kevin Hilman <khilman@kernel.org>
+diff --git a/Makefile b/Makefile
+index 4fdc9d984f80..4b6cf4641eba 100644
+--- a/Makefile
++++ b/Makefile
+@@ -1,6 +1,6 @@
+ VERSION = 4
+ PATCHLEVEL = 9
+-SUBLEVEL = 189
++SUBLEVEL = 190
+ EXTRAVERSION =
+ NAME = Roaring Lionus
+
+diff --git a/arch/arm/mach-davinci/sleep.S b/arch/arm/mach-davinci/sleep.S
+index cd350dee4df3..efcd400b2abb 100644
+--- a/arch/arm/mach-davinci/sleep.S
++++ b/arch/arm/mach-davinci/sleep.S
+@@ -37,6 +37,7 @@
+ #define DEEPSLEEP_SLEEPENABLE_BIT BIT(31)
+
+ .text
++ .arch armv5te
+ /*
+ * Move DaVinci into deep sleep state
+ *
+diff --git a/arch/arm/net/bpf_jit_32.c b/arch/arm/net/bpf_jit_32.c
+index 93d0b6d0b63e..7fd448b23b94 100644
+--- a/arch/arm/net/bpf_jit_32.c
++++ b/arch/arm/net/bpf_jit_32.c
+@@ -72,8 +72,6 @@ struct jit_ctx {
+ #endif
+ };
+
+-int bpf_jit_enable __read_mostly;
+-
+ static inline int call_neg_helper(struct sk_buff *skb, int offset, void *ret,
+ unsigned int size)
+ {
+diff --git a/arch/arm64/include/asm/efi.h b/arch/arm64/include/asm/efi.h
+index 65615820155e..65db124a44bf 100644
+--- a/arch/arm64/include/asm/efi.h
++++ b/arch/arm64/include/asm/efi.h
+@@ -52,7 +52,11 @@ int efi_set_mapping_permissions(struct mm_struct *mm, efi_memory_desc_t *md);
+ #define efi_is_64bit() (true)
+
+ #define alloc_screen_info(x...) &screen_info
+-#define free_screen_info(x...)
++
++static inline void free_screen_info(efi_system_table_t *sys_table_arg,
++ struct screen_info *si)
++{
++}
+
+ /* redeclare as 'hidden' so the compiler will generate relative references */
+ extern struct screen_info screen_info __attribute__((__visibility__("hidden")));
+diff --git a/arch/arm64/include/asm/pgtable.h b/arch/arm64/include/asm/pgtable.h
+index 73e3718356b0..edb2c359480d 100644
+--- a/arch/arm64/include/asm/pgtable.h
++++ b/arch/arm64/include/asm/pgtable.h
+@@ -387,8 +387,8 @@ extern pgprot_t phys_mem_access_prot(struct file *file, unsigned long pfn,
+ PMD_TYPE_SECT)
+
+ #if defined(CONFIG_ARM64_64K_PAGES) || CONFIG_PGTABLE_LEVELS < 3
+-#define pud_sect(pud) (0)
+-#define pud_table(pud) (1)
++static inline bool pud_sect(pud_t pud) { return false; }
++static inline bool pud_table(pud_t pud) { return true; }
+ #else
+ #define pud_sect(pud) ((pud_val(pud) & PUD_TYPE_MASK) == \
+ PUD_TYPE_SECT)
+diff --git a/arch/arm64/kernel/hw_breakpoint.c b/arch/arm64/kernel/hw_breakpoint.c
+index 0b9e5f6290f9..d168e52ee622 100644
+--- a/arch/arm64/kernel/hw_breakpoint.c
++++ b/arch/arm64/kernel/hw_breakpoint.c
+@@ -508,13 +508,14 @@ int arch_validate_hwbkpt_settings(struct perf_event *bp)
+ /* Aligned */
+ break;
+ case 1:
+- /* Allow single byte watchpoint. */
+- if (info->ctrl.len == ARM_BREAKPOINT_LEN_1)
+- break;
+ case 2:
+ /* Allow halfword watchpoints and breakpoints. */
+ if (info->ctrl.len == ARM_BREAKPOINT_LEN_2)
+ break;
++ case 3:
++ /* Allow single byte watchpoint. */
++ if (info->ctrl.len == ARM_BREAKPOINT_LEN_1)
++ break;
+ default:
+ return -EINVAL;
+ }
+diff --git a/arch/arm64/net/bpf_jit_comp.c b/arch/arm64/net/bpf_jit_comp.c
+index b47a26f4290c..939c607b1376 100644
+--- a/arch/arm64/net/bpf_jit_comp.c
++++ b/arch/arm64/net/bpf_jit_comp.c
+@@ -30,8 +30,6 @@
+
+ #include "bpf_jit.h"
+
+-int bpf_jit_enable __read_mostly;
+-
+ #define TMP_REG_1 (MAX_BPF_JIT_REG + 0)
+ #define TMP_REG_2 (MAX_BPF_JIT_REG + 1)
+ #define TCALL_CNT (MAX_BPF_JIT_REG + 2)
+diff --git a/arch/mips/net/bpf_jit.c b/arch/mips/net/bpf_jit.c
+index 248603739198..bb9f779326d0 100644
+--- a/arch/mips/net/bpf_jit.c
++++ b/arch/mips/net/bpf_jit.c
+@@ -1194,8 +1194,6 @@ jmp_cmp:
+ return 0;
+ }
+
+-int bpf_jit_enable __read_mostly;
+-
+ void bpf_jit_compile(struct bpf_prog *fp)
+ {
+ struct jit_ctx ctx;
+diff --git a/arch/powerpc/net/bpf_jit_comp.c b/arch/powerpc/net/bpf_jit_comp.c
+index 9c58194c7ea5..158f43008314 100644
+--- a/arch/powerpc/net/bpf_jit_comp.c
++++ b/arch/powerpc/net/bpf_jit_comp.c
+@@ -18,8 +18,6 @@
+
+ #include "bpf_jit32.h"
+
+-int bpf_jit_enable __read_mostly;
+-
+ static inline void bpf_flush_icache(void *start, void *end)
+ {
+ smp_wmb();
+diff --git a/arch/powerpc/net/bpf_jit_comp64.c b/arch/powerpc/net/bpf_jit_comp64.c
+index 9f0810cfe5f3..888ee95340da 100644
+--- a/arch/powerpc/net/bpf_jit_comp64.c
++++ b/arch/powerpc/net/bpf_jit_comp64.c
+@@ -21,8 +21,6 @@
+
+ #include "bpf_jit64.h"
+
+-int bpf_jit_enable __read_mostly;
+-
+ static void bpf_jit_fill_ill_insns(void *area, unsigned int size)
+ {
+ int *p = area;
+diff --git a/arch/s390/net/bpf_jit_comp.c b/arch/s390/net/bpf_jit_comp.c
+index 8bd25aebf488..896344b6e036 100644
+--- a/arch/s390/net/bpf_jit_comp.c
++++ b/arch/s390/net/bpf_jit_comp.c
+@@ -28,8 +28,6 @@
+ #include <asm/nospec-branch.h>
+ #include "bpf_jit.h"
+
+-int bpf_jit_enable __read_mostly;
+-
+ struct bpf_jit {
+ u32 seen; /* Flags to remember seen eBPF instructions */
+ u32 seen_reg[16]; /* Array to remember which registers are used */
+diff --git a/arch/sh/kernel/hw_breakpoint.c b/arch/sh/kernel/hw_breakpoint.c
+index 2197fc584186..000cc3343867 100644
+--- a/arch/sh/kernel/hw_breakpoint.c
++++ b/arch/sh/kernel/hw_breakpoint.c
+@@ -160,6 +160,7 @@ int arch_bp_generic_fields(int sh_len, int sh_type,
+ switch (sh_type) {
+ case SH_BREAKPOINT_READ:
+ *gen_type = HW_BREAKPOINT_R;
++ break;
+ case SH_BREAKPOINT_WRITE:
+ *gen_type = HW_BREAKPOINT_W;
+ break;
+diff --git a/arch/sparc/net/bpf_jit_comp.c b/arch/sparc/net/bpf_jit_comp.c
+index a6d9204a6a0b..98a4da3012e3 100644
+--- a/arch/sparc/net/bpf_jit_comp.c
++++ b/arch/sparc/net/bpf_jit_comp.c
+@@ -10,8 +10,6 @@
+
+ #include "bpf_jit.h"
+
+-int bpf_jit_enable __read_mostly;
+-
+ static inline bool is_simm13(unsigned int value)
+ {
+ return value + 0x1000 < 0x2000;
+diff --git a/arch/x86/mm/fault.c b/arch/x86/mm/fault.c
+index c140198d9fa5..7f4b3c59df47 100644
+--- a/arch/x86/mm/fault.c
++++ b/arch/x86/mm/fault.c
+@@ -273,13 +273,14 @@ static inline pmd_t *vmalloc_sync_one(pgd_t *pgd, unsigned long address)
+
+ pmd = pmd_offset(pud, address);
+ pmd_k = pmd_offset(pud_k, address);
+- if (!pmd_present(*pmd_k))
+- return NULL;
+
+- if (!pmd_present(*pmd))
++ if (pmd_present(*pmd) != pmd_present(*pmd_k))
+ set_pmd(pmd, *pmd_k);
++
++ if (!pmd_present(*pmd_k))
++ return NULL;
+ else
+- BUG_ON(pmd_page(*pmd) != pmd_page(*pmd_k));
++ BUG_ON(pmd_pfn(*pmd) != pmd_pfn(*pmd_k));
+
+ return pmd_k;
+ }
+@@ -299,17 +300,13 @@ void vmalloc_sync_all(void)
+ spin_lock(&pgd_lock);
+ list_for_each_entry(page, &pgd_list, lru) {
+ spinlock_t *pgt_lock;
+- pmd_t *ret;
+
+ /* the pgt_lock only for Xen */
+ pgt_lock = &pgd_page_get_mm(page)->page_table_lock;
+
+ spin_lock(pgt_lock);
+- ret = vmalloc_sync_one(page_address(page), address);
++ vmalloc_sync_one(page_address(page), address);
+ spin_unlock(pgt_lock);
+-
+- if (!ret)
+- break;
+ }
+ spin_unlock(&pgd_lock);
+ }
+diff --git a/arch/x86/net/bpf_jit_comp.c b/arch/x86/net/bpf_jit_comp.c
+index cd9764520851..d9dabd0c31fc 100644
+--- a/arch/x86/net/bpf_jit_comp.c
++++ b/arch/x86/net/bpf_jit_comp.c
+@@ -15,8 +15,6 @@
+ #include <asm/nospec-branch.h>
+ #include <linux/bpf.h>
+
+-int bpf_jit_enable __read_mostly;
+-
+ /*
+ * assembly code in arch/x86/net/bpf_jit.S
+ */
+diff --git a/arch/xtensa/kernel/setup.c b/arch/xtensa/kernel/setup.c
+index a45d32abea26..b9beae798d72 100644
+--- a/arch/xtensa/kernel/setup.c
++++ b/arch/xtensa/kernel/setup.c
+@@ -626,6 +626,7 @@ void cpu_reset(void)
+ "add %2, %2, %7\n\t"
+ "addi %0, %0, -1\n\t"
+ "bnez %0, 1b\n\t"
++ "isync\n\t"
+ /* Jump to identity mapping */
+ "jx %3\n"
+ "2:\n\t"
+diff --git a/drivers/acpi/arm64/iort.c b/drivers/acpi/arm64/iort.c
+index 6b81746cd13c..e5b1b3f1c231 100644
+--- a/drivers/acpi/arm64/iort.c
++++ b/drivers/acpi/arm64/iort.c
+@@ -324,8 +324,8 @@ static int iort_dev_find_its_id(struct device *dev, u32 req_id,
+
+ /* Move to ITS specific data */
+ its = (struct acpi_iort_its_group *)node->node_data;
+- if (idx > its->its_count) {
+- dev_err(dev, "requested ITS ID index [%d] is greater than available [%d]\n",
++ if (idx >= its->its_count) {
++ dev_err(dev, "requested ITS ID index [%d] overruns ITS entries [%d]\n",
+ idx, its->its_count);
+ return -ENXIO;
+ }
+diff --git a/drivers/ata/libahci_platform.c b/drivers/ata/libahci_platform.c
+index cd2eab6aa92e..65371e1befe8 100644
+--- a/drivers/ata/libahci_platform.c
++++ b/drivers/ata/libahci_platform.c
+@@ -300,6 +300,9 @@ static int ahci_platform_get_phy(struct ahci_host_priv *hpriv, u32 port,
+ hpriv->phys[port] = NULL;
+ rc = 0;
+ break;
++ case -EPROBE_DEFER:
++ /* Do not complain yet */
++ break;
+
+ default:
+ dev_err(dev,
+diff --git a/drivers/ata/libata-zpodd.c b/drivers/ata/libata-zpodd.c
+index 7017a81d53cf..083856272e92 100644
+--- a/drivers/ata/libata-zpodd.c
++++ b/drivers/ata/libata-zpodd.c
+@@ -55,7 +55,7 @@ static enum odd_mech_type zpodd_get_mech_type(struct ata_device *dev)
+ unsigned int ret;
+ struct rm_feature_desc *desc;
+ struct ata_taskfile tf;
+- static const char cdb[] = { GPCMD_GET_CONFIGURATION,
++ static const char cdb[ATAPI_CDB_LEN] = { GPCMD_GET_CONFIGURATION,
+ 2, /* only 1 feature descriptor requested */
+ 0, 3, /* 3, removable medium feature */
+ 0, 0, 0,/* reserved */
+diff --git a/drivers/block/drbd/drbd_receiver.c b/drivers/block/drbd/drbd_receiver.c
+index 83957a1e15ed..8e8e4ccb128f 100644
+--- a/drivers/block/drbd/drbd_receiver.c
++++ b/drivers/block/drbd/drbd_receiver.c
+@@ -5297,7 +5297,7 @@ static int drbd_do_auth(struct drbd_connection *connection)
+ unsigned int key_len;
+ char secret[SHARED_SECRET_MAX]; /* 64 byte */
+ unsigned int resp_size;
+- SHASH_DESC_ON_STACK(desc, connection->cram_hmac_tfm);
++ struct shash_desc *desc;
+ struct packet_info pi;
+ struct net_conf *nc;
+ int err, rv;
+@@ -5310,6 +5310,13 @@ static int drbd_do_auth(struct drbd_connection *connection)
+ memcpy(secret, nc->shared_secret, key_len);
+ rcu_read_unlock();
+
++ desc = kmalloc(sizeof(struct shash_desc) +
++ crypto_shash_descsize(connection->cram_hmac_tfm),
++ GFP_KERNEL);
++ if (!desc) {
++ rv = -1;
++ goto fail;
++ }
+ desc->tfm = connection->cram_hmac_tfm;
+ desc->flags = 0;
+
+@@ -5452,7 +5459,10 @@ static int drbd_do_auth(struct drbd_connection *connection)
+ kfree(peers_ch);
+ kfree(response);
+ kfree(right_response);
+- shash_desc_zero(desc);
++ if (desc) {
++ shash_desc_zero(desc);
++ kfree(desc);
++ }
+
+ return rv;
+ }
+diff --git a/drivers/cpufreq/pasemi-cpufreq.c b/drivers/cpufreq/pasemi-cpufreq.c
+index 58c933f48300..991b6a3062c4 100644
+--- a/drivers/cpufreq/pasemi-cpufreq.c
++++ b/drivers/cpufreq/pasemi-cpufreq.c
+@@ -145,10 +145,18 @@ static int pas_cpufreq_cpu_init(struct cpufreq_policy *policy)
+ int err = -ENODEV;
+
+ cpu = of_get_cpu_node(policy->cpu, NULL);
++ if (!cpu)
++ goto out;
+
++ max_freqp = of_get_property(cpu, "clock-frequency", NULL);
+ of_node_put(cpu);
+- if (!cpu)
++ if (!max_freqp) {
++ err = -EINVAL;
+ goto out;
++ }
++
++ /* we need the freq in kHz */
++ max_freq = *max_freqp / 1000;
+
+ dn = of_find_compatible_node(NULL, NULL, "1682m-sdc");
+ if (!dn)
+@@ -185,16 +193,6 @@ static int pas_cpufreq_cpu_init(struct cpufreq_policy *policy)
+ }
+
+ pr_debug("init cpufreq on CPU %d\n", policy->cpu);
+-
+- max_freqp = of_get_property(cpu, "clock-frequency", NULL);
+- if (!max_freqp) {
+- err = -EINVAL;
+- goto out_unmap_sdcpwr;
+- }
+-
+- /* we need the freq in kHz */
+- max_freq = *max_freqp / 1000;
+-
+ pr_debug("max clock-frequency is at %u kHz\n", max_freq);
+ pr_debug("initializing frequency table\n");
+
+@@ -212,9 +210,6 @@ static int pas_cpufreq_cpu_init(struct cpufreq_policy *policy)
+
+ return cpufreq_generic_init(policy, pas_freqs, get_gizmo_latency());
+
+-out_unmap_sdcpwr:
+- iounmap(sdcpwr_mapbase);
+-
+ out_unmap_sdcasr:
+ iounmap(sdcasr_mapbase);
+ out:
+diff --git a/drivers/firmware/Kconfig b/drivers/firmware/Kconfig
+index bca172d42c74..854df538ae01 100644
+--- a/drivers/firmware/Kconfig
++++ b/drivers/firmware/Kconfig
+@@ -144,7 +144,7 @@ config DMI_SCAN_MACHINE_NON_EFI_FALLBACK
+
+ config ISCSI_IBFT_FIND
+ bool "iSCSI Boot Firmware Table Attributes"
+- depends on X86 && ACPI
++ depends on X86 && ISCSI_IBFT
+ default n
+ help
+ This option enables the kernel to find the region of memory
+@@ -155,7 +155,8 @@ config ISCSI_IBFT_FIND
+ config ISCSI_IBFT
+ tristate "iSCSI Boot Firmware Table Attributes module"
+ select ISCSI_BOOT_SYSFS
+- depends on ISCSI_IBFT_FIND && SCSI && SCSI_LOWLEVEL
++ select ISCSI_IBFT_FIND if X86
++ depends on ACPI && SCSI && SCSI_LOWLEVEL
+ default n
+ help
+ This option enables support for detection and exposing of iSCSI
+diff --git a/drivers/firmware/iscsi_ibft.c b/drivers/firmware/iscsi_ibft.c
+index 132b9bae4b6a..220bbc91cebd 100644
+--- a/drivers/firmware/iscsi_ibft.c
++++ b/drivers/firmware/iscsi_ibft.c
+@@ -93,6 +93,10 @@ MODULE_DESCRIPTION("sysfs interface to BIOS iBFT information");
+ MODULE_LICENSE("GPL");
+ MODULE_VERSION(IBFT_ISCSI_VERSION);
+
++#ifndef CONFIG_ISCSI_IBFT_FIND
++struct acpi_table_ibft *ibft_addr;
++#endif
++
+ struct ibft_hdr {
+ u8 id;
+ u8 version;
+diff --git a/drivers/hid/hid-holtek-kbd.c b/drivers/hid/hid-holtek-kbd.c
+index 6e1a4a4fc0c1..ab9da597106f 100644
+--- a/drivers/hid/hid-holtek-kbd.c
++++ b/drivers/hid/hid-holtek-kbd.c
+@@ -126,9 +126,14 @@ static int holtek_kbd_input_event(struct input_dev *dev, unsigned int type,
+
+ /* Locate the boot interface, to receive the LED change events */
+ struct usb_interface *boot_interface = usb_ifnum_to_if(usb_dev, 0);
++ struct hid_device *boot_hid;
++ struct hid_input *boot_hid_input;
+
+- struct hid_device *boot_hid = usb_get_intfdata(boot_interface);
+- struct hid_input *boot_hid_input = list_first_entry(&boot_hid->inputs,
++ if (unlikely(boot_interface == NULL))
++ return -ENODEV;
++
++ boot_hid = usb_get_intfdata(boot_interface);
++ boot_hid_input = list_first_entry(&boot_hid->inputs,
+ struct hid_input, list);
+
+ return boot_hid_input->input->event(boot_hid_input->input, type, code,
+diff --git a/drivers/hid/usbhid/hiddev.c b/drivers/hid/usbhid/hiddev.c
+index 308d8432fea3..8903ea09ac58 100644
+--- a/drivers/hid/usbhid/hiddev.c
++++ b/drivers/hid/usbhid/hiddev.c
+@@ -308,6 +308,14 @@ static int hiddev_open(struct inode *inode, struct file *file)
+ spin_unlock_irq(&list->hiddev->list_lock);
+
+ mutex_lock(&hiddev->existancelock);
++ /*
++ * recheck exist with existance lock held to
++ * avoid opening a disconnected device
++ */
++ if (!list->hiddev->exist) {
++ res = -ENODEV;
++ goto bail_unlock;
++ }
+ if (!list->hiddev->open++)
+ if (list->hiddev->exist) {
+ struct hid_device *hid = hiddev->hid;
+@@ -322,6 +330,10 @@ static int hiddev_open(struct inode *inode, struct file *file)
+ return 0;
+ bail_unlock:
+ mutex_unlock(&hiddev->existancelock);
++
++ spin_lock_irq(&list->hiddev->list_lock);
++ list_del(&list->node);
++ spin_unlock_irq(&list->hiddev->list_lock);
+ bail:
+ file->private_data = NULL;
+ vfree(list);
+diff --git a/drivers/hwmon/nct6775.c b/drivers/hwmon/nct6775.c
+index 2b31b84d0a5b..006f090c1b0a 100644
+--- a/drivers/hwmon/nct6775.c
++++ b/drivers/hwmon/nct6775.c
+@@ -698,7 +698,7 @@ static const u16 NCT6106_REG_TARGET[] = { 0x111, 0x121, 0x131 };
+ static const u16 NCT6106_REG_WEIGHT_TEMP_SEL[] = { 0x168, 0x178, 0x188 };
+ static const u16 NCT6106_REG_WEIGHT_TEMP_STEP[] = { 0x169, 0x179, 0x189 };
+ static const u16 NCT6106_REG_WEIGHT_TEMP_STEP_TOL[] = { 0x16a, 0x17a, 0x18a };
+-static const u16 NCT6106_REG_WEIGHT_DUTY_STEP[] = { 0x16b, 0x17b, 0x17c };
++static const u16 NCT6106_REG_WEIGHT_DUTY_STEP[] = { 0x16b, 0x17b, 0x18b };
+ static const u16 NCT6106_REG_WEIGHT_TEMP_BASE[] = { 0x16c, 0x17c, 0x18c };
+ static const u16 NCT6106_REG_WEIGHT_DUTY_BASE[] = { 0x16d, 0x17d, 0x18d };
+
+@@ -3481,6 +3481,7 @@ static int nct6775_probe(struct platform_device *pdev)
+ data->REG_FAN_TIME[0] = NCT6106_REG_FAN_STOP_TIME;
+ data->REG_FAN_TIME[1] = NCT6106_REG_FAN_STEP_UP_TIME;
+ data->REG_FAN_TIME[2] = NCT6106_REG_FAN_STEP_DOWN_TIME;
++ data->REG_TOLERANCE_H = NCT6106_REG_TOLERANCE_H;
+ data->REG_PWM[0] = NCT6106_REG_PWM;
+ data->REG_PWM[1] = NCT6106_REG_FAN_START_OUTPUT;
+ data->REG_PWM[2] = NCT6106_REG_FAN_STOP_OUTPUT;
+diff --git a/drivers/hwmon/nct7802.c b/drivers/hwmon/nct7802.c
+index 12b94b094c0d..7f8738a83cb9 100644
+--- a/drivers/hwmon/nct7802.c
++++ b/drivers/hwmon/nct7802.c
+@@ -768,7 +768,7 @@ static struct attribute *nct7802_in_attrs[] = {
+ &sensor_dev_attr_in3_alarm.dev_attr.attr,
+ &sensor_dev_attr_in3_beep.dev_attr.attr,
+
+- &sensor_dev_attr_in4_input.dev_attr.attr, /* 17 */
++ &sensor_dev_attr_in4_input.dev_attr.attr, /* 16 */
+ &sensor_dev_attr_in4_min.dev_attr.attr,
+ &sensor_dev_attr_in4_max.dev_attr.attr,
+ &sensor_dev_attr_in4_alarm.dev_attr.attr,
+@@ -794,9 +794,9 @@ static umode_t nct7802_in_is_visible(struct kobject *kobj,
+
+ if (index >= 6 && index < 11 && (reg & 0x03) != 0x03) /* VSEN1 */
+ return 0;
+- if (index >= 11 && index < 17 && (reg & 0x0c) != 0x0c) /* VSEN2 */
++ if (index >= 11 && index < 16 && (reg & 0x0c) != 0x0c) /* VSEN2 */
+ return 0;
+- if (index >= 17 && (reg & 0x30) != 0x30) /* VSEN3 */
++ if (index >= 16 && (reg & 0x30) != 0x30) /* VSEN3 */
+ return 0;
+
+ return attr->mode;
+diff --git a/drivers/infiniband/core/mad.c b/drivers/infiniband/core/mad.c
+index 3e2ab04201e2..25a28e706072 100644
+--- a/drivers/infiniband/core/mad.c
++++ b/drivers/infiniband/core/mad.c
+@@ -3155,18 +3155,18 @@ static int ib_mad_port_open(struct ib_device *device,
+ if (has_smi)
+ cq_size *= 2;
+
++ port_priv->pd = ib_alloc_pd(device, 0);
++ if (IS_ERR(port_priv->pd)) {
++ dev_err(&device->dev, "Couldn't create ib_mad PD\n");
++ ret = PTR_ERR(port_priv->pd);
++ goto error3;
++ }
++
+ port_priv->cq = ib_alloc_cq(port_priv->device, port_priv, cq_size, 0,
+ IB_POLL_WORKQUEUE);
+ if (IS_ERR(port_priv->cq)) {
+ dev_err(&device->dev, "Couldn't create ib_mad CQ\n");
+ ret = PTR_ERR(port_priv->cq);
+- goto error3;
+- }
+-
+- port_priv->pd = ib_alloc_pd(device, 0);
+- if (IS_ERR(port_priv->pd)) {
+- dev_err(&device->dev, "Couldn't create ib_mad PD\n");
+- ret = PTR_ERR(port_priv->pd);
+ goto error4;
+ }
+
+@@ -3209,11 +3209,11 @@ error8:
+ error7:
+ destroy_mad_qp(&port_priv->qp_info[0]);
+ error6:
+- ib_dealloc_pd(port_priv->pd);
+-error4:
+ ib_free_cq(port_priv->cq);
+ cleanup_recv_queue(&port_priv->qp_info[1]);
+ cleanup_recv_queue(&port_priv->qp_info[0]);
++error4:
++ ib_dealloc_pd(port_priv->pd);
+ error3:
+ kfree(port_priv);
+
+@@ -3243,8 +3243,8 @@ static int ib_mad_port_close(struct ib_device *device, int port_num)
+ destroy_workqueue(port_priv->wq);
+ destroy_mad_qp(&port_priv->qp_info[1]);
+ destroy_mad_qp(&port_priv->qp_info[0]);
+- ib_dealloc_pd(port_priv->pd);
+ ib_free_cq(port_priv->cq);
++ ib_dealloc_pd(port_priv->pd);
+ cleanup_recv_queue(&port_priv->qp_info[1]);
+ cleanup_recv_queue(&port_priv->qp_info[0]);
+ /* XXX: Handle deallocation of MAD registration tables */
+diff --git a/drivers/infiniband/core/user_mad.c b/drivers/infiniband/core/user_mad.c
+index 415a3185cde7..cf93a96b6324 100644
+--- a/drivers/infiniband/core/user_mad.c
++++ b/drivers/infiniband/core/user_mad.c
+@@ -49,6 +49,7 @@
+ #include <linux/sched.h>
+ #include <linux/semaphore.h>
+ #include <linux/slab.h>
++#include <linux/nospec.h>
+
+ #include <asm/uaccess.h>
+
+@@ -843,11 +844,14 @@ static int ib_umad_unreg_agent(struct ib_umad_file *file, u32 __user *arg)
+
+ if (get_user(id, arg))
+ return -EFAULT;
++ if (id >= IB_UMAD_MAX_AGENTS)
++ return -EINVAL;
+
+ mutex_lock(&file->port->file_mutex);
+ mutex_lock(&file->mutex);
+
+- if (id >= IB_UMAD_MAX_AGENTS || !__get_agent(file, id)) {
++ id = array_index_nospec(id, IB_UMAD_MAX_AGENTS);
++ if (!__get_agent(file, id)) {
+ ret = -EINVAL;
+ goto out;
+ }
+diff --git a/drivers/input/joystick/iforce/iforce-usb.c b/drivers/input/joystick/iforce/iforce-usb.c
+index db64adfbe1af..3e1ea912b41d 100644
+--- a/drivers/input/joystick/iforce/iforce-usb.c
++++ b/drivers/input/joystick/iforce/iforce-usb.c
+@@ -145,7 +145,12 @@ static int iforce_usb_probe(struct usb_interface *intf,
+ return -ENODEV;
+
+ epirq = &interface->endpoint[0].desc;
++ if (!usb_endpoint_is_int_in(epirq))
++ return -ENODEV;
++
+ epout = &interface->endpoint[1].desc;
++ if (!usb_endpoint_is_int_out(epout))
++ return -ENODEV;
+
+ if (!(iforce = kzalloc(sizeof(struct iforce) + 32, GFP_KERNEL)))
+ goto fail;
+diff --git a/drivers/input/mouse/trackpoint.h b/drivers/input/mouse/trackpoint.h
+index 88055755f82e..821b446a85dd 100644
+--- a/drivers/input/mouse/trackpoint.h
++++ b/drivers/input/mouse/trackpoint.h
+@@ -153,7 +153,8 @@ struct trackpoint_data
+ #ifdef CONFIG_MOUSE_PS2_TRACKPOINT
+ int trackpoint_detect(struct psmouse *psmouse, bool set_properties);
+ #else
+-inline int trackpoint_detect(struct psmouse *psmouse, bool set_properties)
++static inline int trackpoint_detect(struct psmouse *psmouse,
++ bool set_properties)
+ {
+ return -ENOSYS;
+ }
+diff --git a/drivers/input/tablet/kbtab.c b/drivers/input/tablet/kbtab.c
+index 4d9d64908b59..b7ea64ec1205 100644
+--- a/drivers/input/tablet/kbtab.c
++++ b/drivers/input/tablet/kbtab.c
+@@ -125,6 +125,10 @@ static int kbtab_probe(struct usb_interface *intf, const struct usb_device_id *i
+ if (intf->cur_altsetting->desc.bNumEndpoints < 1)
+ return -ENODEV;
+
++ endpoint = &intf->cur_altsetting->endpoint[0].desc;
++ if (!usb_endpoint_is_int_in(endpoint))
++ return -ENODEV;
++
+ kbtab = kzalloc(sizeof(struct kbtab), GFP_KERNEL);
+ input_dev = input_allocate_device();
+ if (!kbtab || !input_dev)
+@@ -163,8 +167,6 @@ static int kbtab_probe(struct usb_interface *intf, const struct usb_device_id *i
+ input_set_abs_params(input_dev, ABS_Y, 0, 0x1750, 4, 0);
+ input_set_abs_params(input_dev, ABS_PRESSURE, 0, 0xff, 0, 0);
+
+- endpoint = &intf->cur_altsetting->endpoint[0].desc;
+-
+ usb_fill_int_urb(kbtab->irq, dev,
+ usb_rcvintpipe(dev, endpoint->bEndpointAddress),
+ kbtab->data, 8,
+diff --git a/drivers/iommu/amd_iommu_init.c b/drivers/iommu/amd_iommu_init.c
+index 13bbe5795e4e..9bb8d64b6f94 100644
+--- a/drivers/iommu/amd_iommu_init.c
++++ b/drivers/iommu/amd_iommu_init.c
+@@ -1534,7 +1534,7 @@ static const struct attribute_group *amd_iommu_groups[] = {
+ NULL,
+ };
+
+-static int iommu_init_pci(struct amd_iommu *iommu)
++static int __init iommu_init_pci(struct amd_iommu *iommu)
+ {
+ int cap_ptr = iommu->cap_ptr;
+ u32 range, misc, low, high;
+diff --git a/drivers/irqchip/irq-imx-gpcv2.c b/drivers/irqchip/irq-imx-gpcv2.c
+index 2d203b422129..c56da0b13da5 100644
+--- a/drivers/irqchip/irq-imx-gpcv2.c
++++ b/drivers/irqchip/irq-imx-gpcv2.c
+@@ -145,6 +145,7 @@ static struct irq_chip gpcv2_irqchip_data_chip = {
+ .irq_unmask = imx_gpcv2_irq_unmask,
+ .irq_set_wake = imx_gpcv2_irq_set_wake,
+ .irq_retrigger = irq_chip_retrigger_hierarchy,
++ .irq_set_type = irq_chip_set_type_parent,
+ #ifdef CONFIG_SMP
+ .irq_set_affinity = irq_chip_set_affinity_parent,
+ #endif
+diff --git a/drivers/net/bonding/bond_main.c b/drivers/net/bonding/bond_main.c
+index 5b116ec756b4..d338c319b30e 100644
+--- a/drivers/net/bonding/bond_main.c
++++ b/drivers/net/bonding/bond_main.c
+@@ -1107,7 +1107,9 @@ static void bond_compute_features(struct bonding *bond)
+
+ done:
+ bond_dev->vlan_features = vlan_features;
+- bond_dev->hw_enc_features = enc_features | NETIF_F_GSO_ENCAP_ALL;
++ bond_dev->hw_enc_features = enc_features | NETIF_F_GSO_ENCAP_ALL |
++ NETIF_F_HW_VLAN_CTAG_TX |
++ NETIF_F_HW_VLAN_STAG_TX;
+ bond_dev->hard_header_len = max_hard_header_len;
+ bond_dev->gso_max_segs = gso_max_segs;
+ netif_set_gso_max_size(bond_dev, gso_max_size);
+diff --git a/drivers/net/can/usb/peak_usb/pcan_usb_core.c b/drivers/net/can/usb/peak_usb/pcan_usb_core.c
+index 0b0302af3bd2..54c2354053ac 100644
+--- a/drivers/net/can/usb/peak_usb/pcan_usb_core.c
++++ b/drivers/net/can/usb/peak_usb/pcan_usb_core.c
+@@ -592,16 +592,16 @@ static int peak_usb_ndo_stop(struct net_device *netdev)
+ dev->state &= ~PCAN_USB_STATE_STARTED;
+ netif_stop_queue(netdev);
+
++ close_candev(netdev);
++
++ dev->can.state = CAN_STATE_STOPPED;
++
+ /* unlink all pending urbs and free used memory */
+ peak_usb_unlink_all_urbs(dev);
+
+ if (dev->adapter->dev_stop)
+ dev->adapter->dev_stop(dev);
+
+- close_candev(netdev);
+-
+- dev->can.state = CAN_STATE_STOPPED;
+-
+ /* can set bus off now */
+ if (dev->adapter->dev_set_bus) {
+ int err = dev->adapter->dev_set_bus(dev, 0);
+diff --git a/drivers/net/can/usb/peak_usb/pcan_usb_fd.c b/drivers/net/can/usb/peak_usb/pcan_usb_fd.c
+index 7f5ec40e2b4d..40647b837b31 100644
+--- a/drivers/net/can/usb/peak_usb/pcan_usb_fd.c
++++ b/drivers/net/can/usb/peak_usb/pcan_usb_fd.c
+@@ -851,7 +851,7 @@ static int pcan_usb_fd_init(struct peak_usb_device *dev)
+ goto err_out;
+
+ /* allocate command buffer once for all for the interface */
+- pdev->cmd_buffer_addr = kmalloc(PCAN_UFD_CMD_BUFFER_SIZE,
++ pdev->cmd_buffer_addr = kzalloc(PCAN_UFD_CMD_BUFFER_SIZE,
+ GFP_KERNEL);
+ if (!pdev->cmd_buffer_addr)
+ goto err_out_1;
+diff --git a/drivers/net/can/usb/peak_usb/pcan_usb_pro.c b/drivers/net/can/usb/peak_usb/pcan_usb_pro.c
+index bbdd6058cd2f..d85fdc6949c6 100644
+--- a/drivers/net/can/usb/peak_usb/pcan_usb_pro.c
++++ b/drivers/net/can/usb/peak_usb/pcan_usb_pro.c
+@@ -500,7 +500,7 @@ static int pcan_usb_pro_drv_loaded(struct peak_usb_device *dev, int loaded)
+ u8 *buffer;
+ int err;
+
+- buffer = kmalloc(PCAN_USBPRO_FCT_DRVLD_REQ_LEN, GFP_KERNEL);
++ buffer = kzalloc(PCAN_USBPRO_FCT_DRVLD_REQ_LEN, GFP_KERNEL);
+ if (!buffer)
+ return -ENOMEM;
+
+diff --git a/drivers/net/ethernet/broadcom/bnx2x/bnx2x_cmn.c b/drivers/net/ethernet/broadcom/bnx2x/bnx2x_cmn.c
+index 53a71166e784..46a7dcf2ff4a 100644
+--- a/drivers/net/ethernet/broadcom/bnx2x/bnx2x_cmn.c
++++ b/drivers/net/ethernet/broadcom/bnx2x/bnx2x_cmn.c
+@@ -3062,12 +3062,13 @@ int bnx2x_nic_unload(struct bnx2x *bp, int unload_mode, bool keep_link)
+ /* if VF indicate to PF this function is going down (PF will delete sp
+ * elements and clear initializations
+ */
+- if (IS_VF(bp))
++ if (IS_VF(bp)) {
++ bnx2x_clear_vlan_info(bp);
+ bnx2x_vfpf_close_vf(bp);
+- else if (unload_mode != UNLOAD_RECOVERY)
++ } else if (unload_mode != UNLOAD_RECOVERY) {
+ /* if this is a normal/close unload need to clean up chip*/
+ bnx2x_chip_cleanup(bp, unload_mode, keep_link);
+- else {
++ } else {
+ /* Send the UNLOAD_REQUEST to the MCP */
+ bnx2x_send_unload_req(bp, unload_mode);
+
+diff --git a/drivers/net/ethernet/broadcom/bnx2x/bnx2x_cmn.h b/drivers/net/ethernet/broadcom/bnx2x/bnx2x_cmn.h
+index 243cb9748d35..2ec1c43270b7 100644
+--- a/drivers/net/ethernet/broadcom/bnx2x/bnx2x_cmn.h
++++ b/drivers/net/ethernet/broadcom/bnx2x/bnx2x_cmn.h
+@@ -425,6 +425,8 @@ void bnx2x_set_reset_global(struct bnx2x *bp);
+ void bnx2x_disable_close_the_gate(struct bnx2x *bp);
+ int bnx2x_init_hw_func_cnic(struct bnx2x *bp);
+
++void bnx2x_clear_vlan_info(struct bnx2x *bp);
++
+ /**
+ * bnx2x_sp_event - handle ramrods completion.
+ *
+diff --git a/drivers/net/ethernet/broadcom/bnx2x/bnx2x_main.c b/drivers/net/ethernet/broadcom/bnx2x/bnx2x_main.c
+index 2ef6012c3dc5..a9681b191304 100644
+--- a/drivers/net/ethernet/broadcom/bnx2x/bnx2x_main.c
++++ b/drivers/net/ethernet/broadcom/bnx2x/bnx2x_main.c
+@@ -8488,11 +8488,21 @@ int bnx2x_set_vlan_one(struct bnx2x *bp, u16 vlan,
+ return rc;
+ }
+
++void bnx2x_clear_vlan_info(struct bnx2x *bp)
++{
++ struct bnx2x_vlan_entry *vlan;
++
++ /* Mark that hw forgot all entries */
++ list_for_each_entry(vlan, &bp->vlan_reg, link)
++ vlan->hw = false;
++
++ bp->vlan_cnt = 0;
++}
++
+ static int bnx2x_del_all_vlans(struct bnx2x *bp)
+ {
+ struct bnx2x_vlan_mac_obj *vlan_obj = &bp->sp_objs[0].vlan_obj;
+ unsigned long ramrod_flags = 0, vlan_flags = 0;
+- struct bnx2x_vlan_entry *vlan;
+ int rc;
+
+ __set_bit(RAMROD_COMP_WAIT, &ramrod_flags);
+@@ -8501,10 +8511,7 @@ static int bnx2x_del_all_vlans(struct bnx2x *bp)
+ if (rc)
+ return rc;
+
+- /* Mark that hw forgot all entries */
+- list_for_each_entry(vlan, &bp->vlan_reg, link)
+- vlan->hw = false;
+- bp->vlan_cnt = 0;
++ bnx2x_clear_vlan_info(bp);
+
+ return 0;
+ }
+diff --git a/drivers/net/ethernet/mellanox/mlx5/core/en_arfs.c b/drivers/net/ethernet/mellanox/mlx5/core/en_arfs.c
+index 4a51fc6908ad..098a6b56fd54 100644
+--- a/drivers/net/ethernet/mellanox/mlx5/core/en_arfs.c
++++ b/drivers/net/ethernet/mellanox/mlx5/core/en_arfs.c
+@@ -441,12 +441,6 @@ arfs_hash_bucket(struct arfs_table *arfs_t, __be16 src_port,
+ return &arfs_t->rules_hash[bucket_idx];
+ }
+
+-static u8 arfs_get_ip_proto(const struct sk_buff *skb)
+-{
+- return (skb->protocol == htons(ETH_P_IP)) ?
+- ip_hdr(skb)->protocol : ipv6_hdr(skb)->nexthdr;
+-}
+-
+ static struct arfs_table *arfs_get_table(struct mlx5e_arfs_tables *arfs,
+ u8 ip_proto, __be16 etype)
+ {
+@@ -605,31 +599,9 @@ out:
+ arfs_may_expire_flow(priv);
+ }
+
+-/* return L4 destination port from ip4/6 packets */
+-static __be16 arfs_get_dst_port(const struct sk_buff *skb)
+-{
+- char *transport_header;
+-
+- transport_header = skb_transport_header(skb);
+- if (arfs_get_ip_proto(skb) == IPPROTO_TCP)
+- return ((struct tcphdr *)transport_header)->dest;
+- return ((struct udphdr *)transport_header)->dest;
+-}
+-
+-/* return L4 source port from ip4/6 packets */
+-static __be16 arfs_get_src_port(const struct sk_buff *skb)
+-{
+- char *transport_header;
+-
+- transport_header = skb_transport_header(skb);
+- if (arfs_get_ip_proto(skb) == IPPROTO_TCP)
+- return ((struct tcphdr *)transport_header)->source;
+- return ((struct udphdr *)transport_header)->source;
+-}
+-
+ static struct arfs_rule *arfs_alloc_rule(struct mlx5e_priv *priv,
+ struct arfs_table *arfs_t,
+- const struct sk_buff *skb,
++ const struct flow_keys *fk,
+ u16 rxq, u32 flow_id)
+ {
+ struct arfs_rule *rule;
+@@ -644,19 +616,19 @@ static struct arfs_rule *arfs_alloc_rule(struct mlx5e_priv *priv,
+ INIT_WORK(&rule->arfs_work, arfs_handle_work);
+
+ tuple = &rule->tuple;
+- tuple->etype = skb->protocol;
++ tuple->etype = fk->basic.n_proto;
++ tuple->ip_proto = fk->basic.ip_proto;
+ if (tuple->etype == htons(ETH_P_IP)) {
+- tuple->src_ipv4 = ip_hdr(skb)->saddr;
+- tuple->dst_ipv4 = ip_hdr(skb)->daddr;
++ tuple->src_ipv4 = fk->addrs.v4addrs.src;
++ tuple->dst_ipv4 = fk->addrs.v4addrs.dst;
+ } else {
+- memcpy(&tuple->src_ipv6, &ipv6_hdr(skb)->saddr,
++ memcpy(&tuple->src_ipv6, &fk->addrs.v6addrs.src,
+ sizeof(struct in6_addr));
+- memcpy(&tuple->dst_ipv6, &ipv6_hdr(skb)->daddr,
++ memcpy(&tuple->dst_ipv6, &fk->addrs.v6addrs.dst,
+ sizeof(struct in6_addr));
+ }
+- tuple->ip_proto = arfs_get_ip_proto(skb);
+- tuple->src_port = arfs_get_src_port(skb);
+- tuple->dst_port = arfs_get_dst_port(skb);
++ tuple->src_port = fk->ports.src;
++ tuple->dst_port = fk->ports.dst;
+
+ rule->flow_id = flow_id;
+ rule->filter_id = priv->fs.arfs.last_filter_id++ % RPS_NO_FILTER;
+@@ -667,37 +639,33 @@ static struct arfs_rule *arfs_alloc_rule(struct mlx5e_priv *priv,
+ return rule;
+ }
+
+-static bool arfs_cmp_ips(struct arfs_tuple *tuple,
+- const struct sk_buff *skb)
++static bool arfs_cmp(const struct arfs_tuple *tuple, const struct flow_keys *fk)
+ {
+- if (tuple->etype == htons(ETH_P_IP) &&
+- tuple->src_ipv4 == ip_hdr(skb)->saddr &&
+- tuple->dst_ipv4 == ip_hdr(skb)->daddr)
+- return true;
+- if (tuple->etype == htons(ETH_P_IPV6) &&
+- (!memcmp(&tuple->src_ipv6, &ipv6_hdr(skb)->saddr,
+- sizeof(struct in6_addr))) &&
+- (!memcmp(&tuple->dst_ipv6, &ipv6_hdr(skb)->daddr,
+- sizeof(struct in6_addr))))
+- return true;
++ if (tuple->src_port != fk->ports.src || tuple->dst_port != fk->ports.dst)
++ return false;
++ if (tuple->etype != fk->basic.n_proto)
++ return false;
++ if (tuple->etype == htons(ETH_P_IP))
++ return tuple->src_ipv4 == fk->addrs.v4addrs.src &&
++ tuple->dst_ipv4 == fk->addrs.v4addrs.dst;
++ if (tuple->etype == htons(ETH_P_IPV6))
++ return !memcmp(&tuple->src_ipv6, &fk->addrs.v6addrs.src,
++ sizeof(struct in6_addr)) &&
++ !memcmp(&tuple->dst_ipv6, &fk->addrs.v6addrs.dst,
++ sizeof(struct in6_addr));
+ return false;
+ }
+
+ static struct arfs_rule *arfs_find_rule(struct arfs_table *arfs_t,
+- const struct sk_buff *skb)
++ const struct flow_keys *fk)
+ {
+ struct arfs_rule *arfs_rule;
+ struct hlist_head *head;
+- __be16 src_port = arfs_get_src_port(skb);
+- __be16 dst_port = arfs_get_dst_port(skb);
+
+- head = arfs_hash_bucket(arfs_t, src_port, dst_port);
++ head = arfs_hash_bucket(arfs_t, fk->ports.src, fk->ports.dst);
+ hlist_for_each_entry(arfs_rule, head, hlist) {
+- if (arfs_rule->tuple.src_port == src_port &&
+- arfs_rule->tuple.dst_port == dst_port &&
+- arfs_cmp_ips(&arfs_rule->tuple, skb)) {
++ if (arfs_cmp(&arfs_rule->tuple, fk))
+ return arfs_rule;
+- }
+ }
+
+ return NULL;
+@@ -710,20 +678,24 @@ int mlx5e_rx_flow_steer(struct net_device *dev, const struct sk_buff *skb,
+ struct mlx5e_arfs_tables *arfs = &priv->fs.arfs;
+ struct arfs_table *arfs_t;
+ struct arfs_rule *arfs_rule;
++ struct flow_keys fk;
++
++ if (!skb_flow_dissect_flow_keys(skb, &fk, 0))
++ return -EPROTONOSUPPORT;
+
+- if (skb->protocol != htons(ETH_P_IP) &&
+- skb->protocol != htons(ETH_P_IPV6))
++ if (fk.basic.n_proto != htons(ETH_P_IP) &&
++ fk.basic.n_proto != htons(ETH_P_IPV6))
+ return -EPROTONOSUPPORT;
+
+ if (skb->encapsulation)
+ return -EPROTONOSUPPORT;
+
+- arfs_t = arfs_get_table(arfs, arfs_get_ip_proto(skb), skb->protocol);
++ arfs_t = arfs_get_table(arfs, fk.basic.ip_proto, fk.basic.n_proto);
+ if (!arfs_t)
+ return -EPROTONOSUPPORT;
+
+ spin_lock_bh(&arfs->arfs_lock);
+- arfs_rule = arfs_find_rule(arfs_t, skb);
++ arfs_rule = arfs_find_rule(arfs_t, &fk);
+ if (arfs_rule) {
+ if (arfs_rule->rxq == rxq_index) {
+ spin_unlock_bh(&arfs->arfs_lock);
+@@ -731,8 +703,7 @@ int mlx5e_rx_flow_steer(struct net_device *dev, const struct sk_buff *skb,
+ }
+ arfs_rule->rxq = rxq_index;
+ } else {
+- arfs_rule = arfs_alloc_rule(priv, arfs_t, skb,
+- rxq_index, flow_id);
++ arfs_rule = arfs_alloc_rule(priv, arfs_t, &fk, rxq_index, flow_id);
+ if (!arfs_rule) {
+ spin_unlock_bh(&arfs->arfs_lock);
+ return -ENOMEM;
+diff --git a/drivers/net/ethernet/mellanox/mlx5/core/en_ethtool.c b/drivers/net/ethernet/mellanox/mlx5/core/en_ethtool.c
+index 54872f8f2f7d..e42ece20cd0b 100644
+--- a/drivers/net/ethernet/mellanox/mlx5/core/en_ethtool.c
++++ b/drivers/net/ethernet/mellanox/mlx5/core/en_ethtool.c
+@@ -1149,6 +1149,9 @@ static int mlx5e_set_pauseparam(struct net_device *netdev,
+ struct mlx5_core_dev *mdev = priv->mdev;
+ int err;
+
++ if (!MLX5_CAP_GEN(mdev, vport_group_manager))
++ return -EOPNOTSUPP;
++
+ if (pauseparam->autoneg)
+ return -EINVAL;
+
+diff --git a/drivers/net/team/team.c b/drivers/net/team/team.c
+index 0acdf73aa1b0..fd2573cca803 100644
+--- a/drivers/net/team/team.c
++++ b/drivers/net/team/team.c
+@@ -1014,7 +1014,9 @@ static void ___team_compute_features(struct team *team)
+ }
+
+ team->dev->vlan_features = vlan_features;
+- team->dev->hw_enc_features = enc_features | NETIF_F_GSO_ENCAP_ALL;
++ team->dev->hw_enc_features = enc_features | NETIF_F_GSO_ENCAP_ALL |
++ NETIF_F_HW_VLAN_CTAG_TX |
++ NETIF_F_HW_VLAN_STAG_TX;
+ team->dev->hard_header_len = max_hard_header_len;
+
+ team->dev->priv_flags &= ~IFF_XMIT_DST_RELEASE;
+diff --git a/drivers/net/usb/pegasus.c b/drivers/net/usb/pegasus.c
+index ee40ac23507a..5fe9f1273fe2 100644
+--- a/drivers/net/usb/pegasus.c
++++ b/drivers/net/usb/pegasus.c
+@@ -285,7 +285,7 @@ static void mdio_write(struct net_device *dev, int phy_id, int loc, int val)
+ static int read_eprom_word(pegasus_t *pegasus, __u8 index, __u16 *retdata)
+ {
+ int i;
+- __u8 tmp;
++ __u8 tmp = 0;
+ __le16 retdatai;
+ int ret;
+
+diff --git a/drivers/net/wireless/intel/iwlwifi/pcie/tx.c b/drivers/net/wireless/intel/iwlwifi/pcie/tx.c
+index e1bfc9522cbe..174e45d78c46 100644
+--- a/drivers/net/wireless/intel/iwlwifi/pcie/tx.c
++++ b/drivers/net/wireless/intel/iwlwifi/pcie/tx.c
+@@ -439,6 +439,8 @@ static void iwl_pcie_tfd_unmap(struct iwl_trans *trans,
+ DMA_TO_DEVICE);
+ }
+
++ meta->tbs = 0;
++
+ if (trans->cfg->use_tfh) {
+ struct iwl_tfh_tfd *tfd_fh = (void *)tfd;
+
+diff --git a/drivers/net/wireless/marvell/mwifiex/main.h b/drivers/net/wireless/marvell/mwifiex/main.h
+index 26df28f4bfb2..d4e19efb75af 100644
+--- a/drivers/net/wireless/marvell/mwifiex/main.h
++++ b/drivers/net/wireless/marvell/mwifiex/main.h
+@@ -120,6 +120,7 @@ enum {
+
+ #define MWIFIEX_MAX_TOTAL_SCAN_TIME (MWIFIEX_TIMER_10S - MWIFIEX_TIMER_1S)
+
++#define WPA_GTK_OUI_OFFSET 2
+ #define RSN_GTK_OUI_OFFSET 2
+
+ #define MWIFIEX_OUI_NOT_PRESENT 0
+diff --git a/drivers/net/wireless/marvell/mwifiex/scan.c b/drivers/net/wireless/marvell/mwifiex/scan.c
+index 97847eee2dfb..7e96b6a37946 100644
+--- a/drivers/net/wireless/marvell/mwifiex/scan.c
++++ b/drivers/net/wireless/marvell/mwifiex/scan.c
+@@ -181,7 +181,8 @@ mwifiex_is_wpa_oui_present(struct mwifiex_bssdescriptor *bss_desc, u32 cipher)
+ u8 ret = MWIFIEX_OUI_NOT_PRESENT;
+
+ if (has_vendor_hdr(bss_desc->bcn_wpa_ie, WLAN_EID_VENDOR_SPECIFIC)) {
+- iebody = (struct ie_body *) bss_desc->bcn_wpa_ie->data;
++ iebody = (struct ie_body *)((u8 *)bss_desc->bcn_wpa_ie->data +
++ WPA_GTK_OUI_OFFSET);
+ oui = &mwifiex_wpa_oui[cipher][0];
+ ret = mwifiex_search_oui_in_ie(iebody, oui);
+ if (ret)
+diff --git a/drivers/net/xen-netback/netback.c b/drivers/net/xen-netback/netback.c
+index f57815befc90..a469fbe1abaf 100644
+--- a/drivers/net/xen-netback/netback.c
++++ b/drivers/net/xen-netback/netback.c
+@@ -927,6 +927,7 @@ static void xenvif_tx_build_gops(struct xenvif_queue *queue,
+ skb_shinfo(skb)->nr_frags = MAX_SKB_FRAGS;
+ nskb = xenvif_alloc_skb(0);
+ if (unlikely(nskb == NULL)) {
++ skb_shinfo(skb)->nr_frags = 0;
+ kfree_skb(skb);
+ xenvif_tx_err(queue, &txreq, extra_count, idx);
+ if (net_ratelimit())
+@@ -942,6 +943,7 @@ static void xenvif_tx_build_gops(struct xenvif_queue *queue,
+
+ if (xenvif_set_skb_gso(queue->vif, skb, gso)) {
+ /* Failure in xenvif_set_skb_gso is fatal. */
++ skb_shinfo(skb)->nr_frags = 0;
+ kfree_skb(skb);
+ kfree_skb(nskb);
+ break;
+diff --git a/drivers/s390/cio/qdio_main.c b/drivers/s390/cio/qdio_main.c
+index 58cd0e0c9680..b65cab444802 100644
+--- a/drivers/s390/cio/qdio_main.c
++++ b/drivers/s390/cio/qdio_main.c
+@@ -1576,13 +1576,13 @@ static int handle_outbound(struct qdio_q *q, unsigned int callflags,
+ rc = qdio_kick_outbound_q(q, phys_aob);
+ } else if (need_siga_sync(q)) {
+ rc = qdio_siga_sync_q(q);
++ } else if (count < QDIO_MAX_BUFFERS_PER_Q &&
++ get_buf_state(q, prev_buf(bufnr), &state, 0) > 0 &&
++ state == SLSB_CU_OUTPUT_PRIMED) {
++ /* The previous buffer is not processed yet, tack on. */
++ qperf_inc(q, fast_requeue);
+ } else {
+- /* try to fast requeue buffers */
+- get_buf_state(q, prev_buf(bufnr), &state, 0);
+- if (state != SLSB_CU_OUTPUT_PRIMED)
+- rc = qdio_kick_outbound_q(q, 0);
+- else
+- qperf_inc(q, fast_requeue);
++ rc = qdio_kick_outbound_q(q, 0);
+ }
+
+ /* in case of SIGA errors we must process the error immediately */
+diff --git a/drivers/scsi/device_handler/scsi_dh_alua.c b/drivers/scsi/device_handler/scsi_dh_alua.c
+index d3145799b92f..98787588247b 100644
+--- a/drivers/scsi/device_handler/scsi_dh_alua.c
++++ b/drivers/scsi/device_handler/scsi_dh_alua.c
+@@ -53,6 +53,7 @@
+ #define ALUA_FAILOVER_TIMEOUT 60
+ #define ALUA_FAILOVER_RETRIES 5
+ #define ALUA_RTPG_DELAY_MSECS 5
++#define ALUA_RTPG_RETRY_DELAY 2
+
+ /* device handler flags */
+ #define ALUA_OPTIMIZE_STPG 0x01
+@@ -681,7 +682,7 @@ static int alua_rtpg(struct scsi_device *sdev, struct alua_port_group *pg)
+ case SCSI_ACCESS_STATE_TRANSITIONING:
+ if (time_before(jiffies, pg->expiry)) {
+ /* State transition, retry */
+- pg->interval = 2;
++ pg->interval = ALUA_RTPG_RETRY_DELAY;
+ err = SCSI_DH_RETRY;
+ } else {
+ struct alua_dh_data *h;
+@@ -809,6 +810,8 @@ static void alua_rtpg_work(struct work_struct *work)
+ spin_lock_irqsave(&pg->lock, flags);
+ pg->flags &= ~ALUA_PG_RUNNING;
+ pg->flags |= ALUA_PG_RUN_RTPG;
++ if (!pg->interval)
++ pg->interval = ALUA_RTPG_RETRY_DELAY;
+ spin_unlock_irqrestore(&pg->lock, flags);
+ queue_delayed_work(alua_wq, &pg->rtpg_work,
+ pg->interval * HZ);
+@@ -820,6 +823,8 @@ static void alua_rtpg_work(struct work_struct *work)
+ spin_lock_irqsave(&pg->lock, flags);
+ if (err == SCSI_DH_RETRY || pg->flags & ALUA_PG_RUN_RTPG) {
+ pg->flags &= ~ALUA_PG_RUNNING;
++ if (!pg->interval && !(pg->flags & ALUA_PG_RUN_RTPG))
++ pg->interval = ALUA_RTPG_RETRY_DELAY;
+ pg->flags |= ALUA_PG_RUN_RTPG;
+ spin_unlock_irqrestore(&pg->lock, flags);
+ queue_delayed_work(alua_wq, &pg->rtpg_work,
+diff --git a/drivers/scsi/hpsa.c b/drivers/scsi/hpsa.c
+index 9f98c7211ec2..b82df8cdf962 100644
+--- a/drivers/scsi/hpsa.c
++++ b/drivers/scsi/hpsa.c
+@@ -2236,6 +2236,8 @@ static int handle_ioaccel_mode2_error(struct ctlr_info *h,
+ case IOACCEL2_SERV_RESPONSE_COMPLETE:
+ switch (c2->error_data.status) {
+ case IOACCEL2_STATUS_SR_TASK_COMP_GOOD:
++ if (cmd)
++ cmd->result = 0;
+ break;
+ case IOACCEL2_STATUS_SR_TASK_COMP_CHK_COND:
+ cmd->result |= SAM_STAT_CHECK_CONDITION;
+@@ -2423,8 +2425,10 @@ static void process_ioaccel2_completion(struct ctlr_info *h,
+
+ /* check for good status */
+ if (likely(c2->error_data.serv_response == 0 &&
+- c2->error_data.status == 0))
++ c2->error_data.status == 0)) {
++ cmd->result = 0;
+ return hpsa_cmd_free_and_done(h, c, cmd);
++ }
+
+ /*
+ * Any RAID offload error results in retry which will use
+@@ -5511,6 +5515,12 @@ static int hpsa_scsi_queue_command(struct Scsi_Host *sh, struct scsi_cmnd *cmd)
+ }
+ c = cmd_tagged_alloc(h, cmd);
+
++ /*
++ * This is necessary because the SML doesn't zero out this field during
++ * error recovery.
++ */
++ cmd->result = 0;
++
+ /*
+ * Call alternate submit routine for I/O accelerated commands.
+ * Retries always go down the normal I/O path.
+diff --git a/drivers/scsi/ibmvscsi/ibmvfc.c b/drivers/scsi/ibmvscsi/ibmvfc.c
+index 7e487c78279c..54dea767dfde 100644
+--- a/drivers/scsi/ibmvscsi/ibmvfc.c
++++ b/drivers/scsi/ibmvscsi/ibmvfc.c
+@@ -4883,8 +4883,8 @@ static int ibmvfc_remove(struct vio_dev *vdev)
+
+ spin_lock_irqsave(vhost->host->host_lock, flags);
+ ibmvfc_purge_requests(vhost, DID_ERROR);
+- ibmvfc_free_event_pool(vhost);
+ spin_unlock_irqrestore(vhost->host->host_lock, flags);
++ ibmvfc_free_event_pool(vhost);
+
+ ibmvfc_free_mem(vhost);
+ spin_lock(&ibmvfc_driver_lock);
+diff --git a/drivers/scsi/megaraid/megaraid_sas_base.c b/drivers/scsi/megaraid/megaraid_sas_base.c
+index 5b1c37e3913c..d90693b2767f 100644
+--- a/drivers/scsi/megaraid/megaraid_sas_base.c
++++ b/drivers/scsi/megaraid/megaraid_sas_base.c
+@@ -2847,6 +2847,7 @@ megasas_fw_crash_buffer_show(struct device *cdev,
+ u32 size;
+ unsigned long buff_addr;
+ unsigned long dmachunk = CRASH_DMA_BUF_SIZE;
++ unsigned long chunk_left_bytes;
+ unsigned long src_addr;
+ unsigned long flags;
+ u32 buff_offset;
+@@ -2872,6 +2873,8 @@ megasas_fw_crash_buffer_show(struct device *cdev,
+ }
+
+ size = (instance->fw_crash_buffer_size * dmachunk) - buff_offset;
++ chunk_left_bytes = dmachunk - (buff_offset % dmachunk);
++ size = (size > chunk_left_bytes) ? chunk_left_bytes : size;
+ size = (size >= PAGE_SIZE) ? (PAGE_SIZE - 1) : size;
+
+ src_addr = (unsigned long)instance->crash_buf[buff_offset / dmachunk] +
+diff --git a/drivers/scsi/mpt3sas/mpt3sas_base.c b/drivers/scsi/mpt3sas/mpt3sas_base.c
+index a1a5ceb42ce6..6ccde2b41517 100644
+--- a/drivers/scsi/mpt3sas/mpt3sas_base.c
++++ b/drivers/scsi/mpt3sas/mpt3sas_base.c
+@@ -1707,9 +1707,11 @@ _base_config_dma_addressing(struct MPT3SAS_ADAPTER *ioc, struct pci_dev *pdev)
+ {
+ struct sysinfo s;
+ u64 consistent_dma_mask;
++ /* Set 63 bit DMA mask for all SAS3 and SAS35 controllers */
++ int dma_mask = (ioc->hba_mpi_version_belonged > MPI2_VERSION) ? 63 : 64;
+
+ if (ioc->dma_mask)
+- consistent_dma_mask = DMA_BIT_MASK(64);
++ consistent_dma_mask = DMA_BIT_MASK(dma_mask);
+ else
+ consistent_dma_mask = DMA_BIT_MASK(32);
+
+@@ -1717,11 +1719,11 @@ _base_config_dma_addressing(struct MPT3SAS_ADAPTER *ioc, struct pci_dev *pdev)
+ const uint64_t required_mask =
+ dma_get_required_mask(&pdev->dev);
+ if ((required_mask > DMA_BIT_MASK(32)) &&
+- !pci_set_dma_mask(pdev, DMA_BIT_MASK(64)) &&
++ !pci_set_dma_mask(pdev, DMA_BIT_MASK(dma_mask)) &&
+ !pci_set_consistent_dma_mask(pdev, consistent_dma_mask)) {
+ ioc->base_add_sg_single = &_base_add_sg_single_64;
+ ioc->sge_size = sizeof(Mpi2SGESimple64_t);
+- ioc->dma_mask = 64;
++ ioc->dma_mask = dma_mask;
+ goto out;
+ }
+ }
+@@ -1747,7 +1749,7 @@ static int
+ _base_change_consistent_dma_mask(struct MPT3SAS_ADAPTER *ioc,
+ struct pci_dev *pdev)
+ {
+- if (pci_set_consistent_dma_mask(pdev, DMA_BIT_MASK(64))) {
++ if (pci_set_consistent_dma_mask(pdev, DMA_BIT_MASK(ioc->dma_mask))) {
+ if (pci_set_consistent_dma_mask(pdev, DMA_BIT_MASK(32)))
+ return -ENODEV;
+ }
+@@ -3381,7 +3383,7 @@ _base_allocate_memory_pools(struct MPT3SAS_ADAPTER *ioc)
+ total_sz += sz;
+ } while (ioc->rdpq_array_enable && (++i < ioc->reply_queue_count));
+
+- if (ioc->dma_mask == 64) {
++ if (ioc->dma_mask > 32) {
+ if (_base_change_consistent_dma_mask(ioc, ioc->pdev) != 0) {
+ pr_warn(MPT3SAS_FMT
+ "no suitable consistent DMA mask for %s\n",
+diff --git a/drivers/staging/comedi/drivers/dt3000.c b/drivers/staging/comedi/drivers/dt3000.c
+index 19e0b7be8495..917d13abef88 100644
+--- a/drivers/staging/comedi/drivers/dt3000.c
++++ b/drivers/staging/comedi/drivers/dt3000.c
+@@ -351,9 +351,9 @@ static irqreturn_t dt3k_interrupt(int irq, void *d)
+ static int dt3k_ns_to_timer(unsigned int timer_base, unsigned int *nanosec,
+ unsigned int flags)
+ {
+- int divider, base, prescale;
++ unsigned int divider, base, prescale;
+
+- /* This function needs improvment */
++ /* This function needs improvement */
+ /* Don't know if divider==0 works. */
+
+ for (prescale = 0; prescale < 16; prescale++) {
+@@ -367,7 +367,7 @@ static int dt3k_ns_to_timer(unsigned int timer_base, unsigned int *nanosec,
+ divider = (*nanosec) / base;
+ break;
+ case CMDF_ROUND_UP:
+- divider = (*nanosec) / base;
++ divider = DIV_ROUND_UP(*nanosec, base);
+ break;
+ }
+ if (divider < 65536) {
+@@ -377,7 +377,7 @@ static int dt3k_ns_to_timer(unsigned int timer_base, unsigned int *nanosec,
+ }
+
+ prescale = 15;
+- base = timer_base * (1 << prescale);
++ base = timer_base * (prescale + 1);
+ divider = 65535;
+ *nanosec = divider * base;
+ return (prescale << 16) | (divider);
+diff --git a/drivers/tty/tty_ldsem.c b/drivers/tty/tty_ldsem.c
+index dbd7ba32caac..6c5eb99fcfce 100644
+--- a/drivers/tty/tty_ldsem.c
++++ b/drivers/tty/tty_ldsem.c
+@@ -137,8 +137,7 @@ static void __ldsem_wake_readers(struct ld_semaphore *sem)
+
+ list_for_each_entry_safe(waiter, next, &sem->read_wait, list) {
+ tsk = waiter->task;
+- smp_mb();
+- waiter->task = NULL;
++ smp_store_release(&waiter->task, NULL);
+ wake_up_process(tsk);
+ put_task_struct(tsk);
+ }
+@@ -234,7 +233,7 @@ down_read_failed(struct ld_semaphore *sem, long count, long timeout)
+ for (;;) {
+ set_task_state(tsk, TASK_UNINTERRUPTIBLE);
+
+- if (!waiter.task)
++ if (!smp_load_acquire(&waiter.task))
+ break;
+ if (!timeout)
+ break;
+diff --git a/drivers/usb/class/cdc-acm.c b/drivers/usb/class/cdc-acm.c
+index 8d4d46f3fd16..b2edbd4bf8c4 100644
+--- a/drivers/usb/class/cdc-acm.c
++++ b/drivers/usb/class/cdc-acm.c
+@@ -1264,10 +1264,6 @@ made_compressed_probe:
+ if (acm == NULL)
+ goto alloc_fail;
+
+- minor = acm_alloc_minor(acm);
+- if (minor < 0)
+- goto alloc_fail1;
+-
+ ctrlsize = usb_endpoint_maxp(epctrl);
+ readsize = usb_endpoint_maxp(epread) *
+ (quirks == SINGLE_RX_URB ? 1 : 2);
+@@ -1275,6 +1271,13 @@ made_compressed_probe:
+ acm->writesize = usb_endpoint_maxp(epwrite) * 20;
+ acm->control = control_interface;
+ acm->data = data_interface;
++
++ usb_get_intf(acm->control); /* undone in destruct() */
++
++ minor = acm_alloc_minor(acm);
++ if (minor < 0)
++ goto alloc_fail1;
++
+ acm->minor = minor;
+ acm->dev = usb_dev;
+ if (h.usb_cdc_acm_descriptor)
+@@ -1420,7 +1423,6 @@ skip_countries:
+ usb_driver_claim_interface(&acm_driver, data_interface, acm);
+ usb_set_intfdata(data_interface, acm);
+
+- usb_get_intf(control_interface);
+ tty_dev = tty_port_register_device(&acm->port, acm_tty_driver, minor,
+ &control_interface->dev);
+ if (IS_ERR(tty_dev)) {
+diff --git a/drivers/usb/core/devio.c b/drivers/usb/core/devio.c
+index 52fc2084b310..06a8f645106b 100644
+--- a/drivers/usb/core/devio.c
++++ b/drivers/usb/core/devio.c
+@@ -1810,8 +1810,6 @@ static int proc_do_submiturb(struct usb_dev_state *ps, struct usbdevfs_urb *uurb
+ return 0;
+
+ error:
+- if (as && as->usbm)
+- dec_usb_memory_use_count(as->usbm, &as->usbm->urb_use_count);
+ kfree(isopkt);
+ kfree(dr);
+ if (as)
+diff --git a/drivers/usb/core/file.c b/drivers/usb/core/file.c
+index 422ce7b20d73..1626abeca8e8 100644
+--- a/drivers/usb/core/file.c
++++ b/drivers/usb/core/file.c
+@@ -191,9 +191,10 @@ int usb_register_dev(struct usb_interface *intf,
+ intf->minor = minor;
+ break;
+ }
+- up_write(&minor_rwsem);
+- if (intf->minor < 0)
++ if (intf->minor < 0) {
++ up_write(&minor_rwsem);
+ return -EXFULL;
++ }
+
+ /* create a usb class device for this usb interface */
+ snprintf(name, sizeof(name), class_driver->name, minor - minor_base);
+@@ -201,12 +202,11 @@ int usb_register_dev(struct usb_interface *intf,
+ MKDEV(USB_MAJOR, minor), class_driver,
+ "%s", kbasename(name));
+ if (IS_ERR(intf->usb_dev)) {
+- down_write(&minor_rwsem);
+ usb_minors[minor] = NULL;
+ intf->minor = -1;
+- up_write(&minor_rwsem);
+ retval = PTR_ERR(intf->usb_dev);
+ }
++ up_write(&minor_rwsem);
+ return retval;
+ }
+ EXPORT_SYMBOL_GPL(usb_register_dev);
+@@ -232,12 +232,12 @@ void usb_deregister_dev(struct usb_interface *intf,
+ return;
+
+ dev_dbg(&intf->dev, "removing %d minor\n", intf->minor);
++ device_destroy(usb_class->class, MKDEV(USB_MAJOR, intf->minor));
+
+ down_write(&minor_rwsem);
+ usb_minors[intf->minor] = NULL;
+ up_write(&minor_rwsem);
+
+- device_destroy(usb_class->class, MKDEV(USB_MAJOR, intf->minor));
+ intf->usb_dev = NULL;
+ intf->minor = -1;
+ destroy_usb_class();
+diff --git a/drivers/usb/core/message.c b/drivers/usb/core/message.c
+index 955cd6552e95..d6075d45e10a 100644
+--- a/drivers/usb/core/message.c
++++ b/drivers/usb/core/message.c
+@@ -2142,14 +2142,14 @@ int cdc_parse_cdc_header(struct usb_cdc_parsed_header *hdr,
+ (struct usb_cdc_dmm_desc *)buffer;
+ break;
+ case USB_CDC_MDLM_TYPE:
+- if (elength < sizeof(struct usb_cdc_mdlm_desc *))
++ if (elength < sizeof(struct usb_cdc_mdlm_desc))
+ goto next_desc;
+ if (desc)
+ return -EINVAL;
+ desc = (struct usb_cdc_mdlm_desc *)buffer;
+ break;
+ case USB_CDC_MDLM_DETAIL_TYPE:
+- if (elength < sizeof(struct usb_cdc_mdlm_detail_desc *))
++ if (elength < sizeof(struct usb_cdc_mdlm_detail_desc))
+ goto next_desc;
+ if (detail)
+ return -EINVAL;
+diff --git a/drivers/usb/misc/iowarrior.c b/drivers/usb/misc/iowarrior.c
+index 0ef29d202263..318e087f8442 100644
+--- a/drivers/usb/misc/iowarrior.c
++++ b/drivers/usb/misc/iowarrior.c
+@@ -886,19 +886,20 @@ static void iowarrior_disconnect(struct usb_interface *interface)
+ dev = usb_get_intfdata(interface);
+ mutex_lock(&iowarrior_open_disc_lock);
+ usb_set_intfdata(interface, NULL);
++ /* prevent device read, write and ioctl */
++ dev->present = 0;
+
+ minor = dev->minor;
++ mutex_unlock(&iowarrior_open_disc_lock);
++ /* give back our minor - this will call close() locks need to be dropped at this point*/
+
+- /* give back our minor */
+ usb_deregister_dev(interface, &iowarrior_class);
+
+ mutex_lock(&dev->mutex);
+
+ /* prevent device read, write and ioctl */
+- dev->present = 0;
+
+ mutex_unlock(&dev->mutex);
+- mutex_unlock(&iowarrior_open_disc_lock);
+
+ if (dev->opened) {
+ /* There is a process that holds a filedescriptor to the device ,
+diff --git a/drivers/usb/misc/yurex.c b/drivers/usb/misc/yurex.c
+index efa3c86bd262..9744e5f996c1 100644
+--- a/drivers/usb/misc/yurex.c
++++ b/drivers/usb/misc/yurex.c
+@@ -96,7 +96,6 @@ static void yurex_delete(struct kref *kref)
+
+ dev_dbg(&dev->interface->dev, "%s\n", __func__);
+
+- usb_put_dev(dev->udev);
+ if (dev->cntl_urb) {
+ usb_kill_urb(dev->cntl_urb);
+ kfree(dev->cntl_req);
+@@ -112,6 +111,7 @@ static void yurex_delete(struct kref *kref)
+ dev->int_buffer, dev->urb->transfer_dma);
+ usb_free_urb(dev->urb);
+ }
++ usb_put_dev(dev->udev);
+ kfree(dev);
+ }
+
+diff --git a/drivers/usb/serial/option.c b/drivers/usb/serial/option.c
+index d7b31fdce94d..1bceb11f3782 100644
+--- a/drivers/usb/serial/option.c
++++ b/drivers/usb/serial/option.c
+@@ -967,6 +967,11 @@ static const struct usb_device_id option_ids[] = {
+ { USB_VENDOR_AND_INTERFACE_INFO(HUAWEI_VENDOR_ID, 0xff, 0x06, 0x7B) },
+ { USB_VENDOR_AND_INTERFACE_INFO(HUAWEI_VENDOR_ID, 0xff, 0x06, 0x7C) },
+
++ /* Motorola devices */
++ { USB_DEVICE_AND_INTERFACE_INFO(0x22b8, 0x2a70, 0xff, 0xff, 0xff) }, /* mdm6600 */
++ { USB_DEVICE_AND_INTERFACE_INFO(0x22b8, 0x2e0a, 0xff, 0xff, 0xff) }, /* mdm9600 */
++ { USB_DEVICE_AND_INTERFACE_INFO(0x22b8, 0x4281, 0x0a, 0x00, 0xfc) }, /* mdm ram dl */
++ { USB_DEVICE_AND_INTERFACE_INFO(0x22b8, 0x900e, 0xff, 0xff, 0xff) }, /* mdm qc dl */
+
+ { USB_DEVICE(NOVATELWIRELESS_VENDOR_ID, NOVATELWIRELESS_PRODUCT_V640) },
+ { USB_DEVICE(NOVATELWIRELESS_VENDOR_ID, NOVATELWIRELESS_PRODUCT_V620) },
+@@ -1544,6 +1549,7 @@ static const struct usb_device_id option_ids[] = {
+ { USB_DEVICE_AND_INTERFACE_INFO(ZTE_VENDOR_ID, 0x1428, 0xff, 0xff, 0xff), /* Telewell TW-LTE 4G v2 */
+ .driver_info = RSVD(2) },
+ { USB_DEVICE_INTERFACE_CLASS(ZTE_VENDOR_ID, 0x1476, 0xff) }, /* GosunCn ZTE WeLink ME3630 (ECM/NCM mode) */
++ { USB_DEVICE_AND_INTERFACE_INFO(ZTE_VENDOR_ID, 0x1481, 0xff, 0x00, 0x00) }, /* ZTE MF871A */
+ { USB_DEVICE_AND_INTERFACE_INFO(ZTE_VENDOR_ID, 0x1533, 0xff, 0xff, 0xff) },
+ { USB_DEVICE_AND_INTERFACE_INFO(ZTE_VENDOR_ID, 0x1534, 0xff, 0xff, 0xff) },
+ { USB_DEVICE_AND_INTERFACE_INFO(ZTE_VENDOR_ID, 0x1535, 0xff, 0xff, 0xff) },
+@@ -1949,11 +1955,15 @@ static const struct usb_device_id option_ids[] = {
+ .driver_info = RSVD(4) },
+ { USB_DEVICE_INTERFACE_CLASS(0x2001, 0x7e35, 0xff), /* D-Link DWM-222 */
+ .driver_info = RSVD(4) },
++ { USB_DEVICE_INTERFACE_CLASS(0x2001, 0x7e3d, 0xff), /* D-Link DWM-222 A2 */
++ .driver_info = RSVD(4) },
+ { USB_DEVICE_AND_INTERFACE_INFO(0x07d1, 0x3e01, 0xff, 0xff, 0xff) }, /* D-Link DWM-152/C1 */
+ { USB_DEVICE_AND_INTERFACE_INFO(0x07d1, 0x3e02, 0xff, 0xff, 0xff) }, /* D-Link DWM-156/C1 */
+ { USB_DEVICE_AND_INTERFACE_INFO(0x07d1, 0x7e11, 0xff, 0xff, 0xff) }, /* D-Link DWM-156/A3 */
+ { USB_DEVICE_INTERFACE_CLASS(0x2020, 0x2031, 0xff), /* Olicard 600 */
+ .driver_info = RSVD(4) },
++ { USB_DEVICE_INTERFACE_CLASS(0x2020, 0x2060, 0xff), /* BroadMobi BM818 */
++ .driver_info = RSVD(4) },
+ { USB_DEVICE_INTERFACE_CLASS(0x2020, 0x4000, 0xff) }, /* OLICARD300 - MT6225 */
+ { USB_DEVICE(INOVIA_VENDOR_ID, INOVIA_SEW858) },
+ { USB_DEVICE(VIATELECOM_VENDOR_ID, VIATELECOM_PRODUCT_CDS7) },
+diff --git a/drivers/vhost/net.c b/drivers/vhost/net.c
+index 75e1089dfb01..dd8798bf88e7 100644
+--- a/drivers/vhost/net.c
++++ b/drivers/vhost/net.c
+@@ -39,6 +39,12 @@ MODULE_PARM_DESC(experimental_zcopytx, "Enable Zero Copy TX;"
+ * Using this limit prevents one virtqueue from starving others. */
+ #define VHOST_NET_WEIGHT 0x80000
+
++/* Max number of packets transferred before requeueing the job.
++ * Using this limit prevents one virtqueue from starving others with small
++ * pkts.
++ */
++#define VHOST_NET_PKT_WEIGHT 256
++
+ /* MAX number of TX used buffers for outstanding zerocopy */
+ #define VHOST_MAX_PEND 128
+ #define VHOST_GOODCOPY_LEN 256
+@@ -372,6 +378,7 @@ static void handle_tx(struct vhost_net *net)
+ struct socket *sock;
+ struct vhost_net_ubuf_ref *uninitialized_var(ubufs);
+ bool zcopy, zcopy_used;
++ int sent_pkts = 0;
+
+ mutex_lock(&vq->mutex);
+ sock = vq->private_data;
+@@ -386,7 +393,7 @@ static void handle_tx(struct vhost_net *net)
+ hdr_size = nvq->vhost_hlen;
+ zcopy = nvq->ubufs;
+
+- for (;;) {
++ do {
+ /* Release DMAs done buffers first */
+ if (zcopy)
+ vhost_zerocopy_signal_used(net, vq);
+@@ -474,11 +481,7 @@ static void handle_tx(struct vhost_net *net)
+ vhost_zerocopy_signal_used(net, vq);
+ total_len += len;
+ vhost_net_tx_packet(net);
+- if (unlikely(total_len >= VHOST_NET_WEIGHT)) {
+- vhost_poll_queue(&vq->poll);
+- break;
+- }
+- }
++ } while (likely(!vhost_exceeds_weight(vq, ++sent_pkts, total_len)));
+ out:
+ mutex_unlock(&vq->mutex);
+ }
+@@ -656,6 +659,7 @@ static void handle_rx(struct vhost_net *net)
+ struct socket *sock;
+ struct iov_iter fixup;
+ __virtio16 num_buffers;
++ int recv_pkts = 0;
+
+ mutex_lock_nested(&vq->mutex, 0);
+ sock = vq->private_data;
+@@ -675,7 +679,10 @@ static void handle_rx(struct vhost_net *net)
+ vq->log : NULL;
+ mergeable = vhost_has_feature(vq, VIRTIO_NET_F_MRG_RXBUF);
+
+- while ((sock_len = vhost_net_rx_peek_head_len(net, sock->sk))) {
++ do {
++ sock_len = vhost_net_rx_peek_head_len(net, sock->sk);
++ if (!sock_len)
++ break;
+ sock_len += sock_hlen;
+ vhost_len = sock_len + vhost_hlen;
+ headcount = get_rx_bufs(vq, vq->heads, vhost_len,
+@@ -754,12 +761,10 @@ static void handle_rx(struct vhost_net *net)
+ vhost_log_write(vq, vq_log, log, vhost_len,
+ vq->iov, in);
+ total_len += vhost_len;
+- if (unlikely(total_len >= VHOST_NET_WEIGHT)) {
+- vhost_poll_queue(&vq->poll);
+- goto out;
+- }
+- }
+- vhost_net_enable_vq(net, vq);
++ } while (likely(!vhost_exceeds_weight(vq, ++recv_pkts, total_len)));
++
++ if (!sock_len)
++ vhost_net_enable_vq(net, vq);
+ out:
+ mutex_unlock(&vq->mutex);
+ }
+@@ -828,7 +833,8 @@ static int vhost_net_open(struct inode *inode, struct file *f)
+ n->vqs[i].vhost_hlen = 0;
+ n->vqs[i].sock_hlen = 0;
+ }
+- vhost_dev_init(dev, vqs, VHOST_NET_VQ_MAX);
++ vhost_dev_init(dev, vqs, VHOST_NET_VQ_MAX,
++ VHOST_NET_PKT_WEIGHT, VHOST_NET_WEIGHT);
+
+ vhost_poll_init(n->poll + VHOST_NET_VQ_TX, handle_tx_net, POLLOUT, dev);
+ vhost_poll_init(n->poll + VHOST_NET_VQ_RX, handle_rx_net, POLLIN, dev);
+diff --git a/drivers/vhost/scsi.c b/drivers/vhost/scsi.c
+index 17f9ad6fdfa5..dad90f6cc3e1 100644
+--- a/drivers/vhost/scsi.c
++++ b/drivers/vhost/scsi.c
+@@ -58,6 +58,12 @@
+ #define VHOST_SCSI_PREALLOC_UPAGES 2048
+ #define VHOST_SCSI_PREALLOC_PROT_SGLS 512
+
++/* Max number of requests before requeueing the job.
++ * Using this limit prevents one virtqueue from starving others with
++ * request.
++ */
++#define VHOST_SCSI_WEIGHT 256
++
+ struct vhost_scsi_inflight {
+ /* Wait for the flush operation to finish */
+ struct completion comp;
+@@ -845,7 +851,7 @@ vhost_scsi_handle_vq(struct vhost_scsi *vs, struct vhost_virtqueue *vq)
+ u64 tag;
+ u32 exp_data_len, data_direction;
+ unsigned out, in;
+- int head, ret, prot_bytes;
++ int head, ret, prot_bytes, c = 0;
+ size_t req_size, rsp_size = sizeof(struct virtio_scsi_cmd_resp);
+ size_t out_size, in_size;
+ u16 lun;
+@@ -864,7 +870,7 @@ vhost_scsi_handle_vq(struct vhost_scsi *vs, struct vhost_virtqueue *vq)
+
+ vhost_disable_notify(&vs->dev, vq);
+
+- for (;;) {
++ do {
+ head = vhost_get_vq_desc(vq, vq->iov,
+ ARRAY_SIZE(vq->iov), &out, &in,
+ NULL, NULL);
+@@ -1080,7 +1086,7 @@ vhost_scsi_handle_vq(struct vhost_scsi *vs, struct vhost_virtqueue *vq)
+ */
+ INIT_WORK(&cmd->work, vhost_scsi_submission_work);
+ queue_work(vhost_scsi_workqueue, &cmd->work);
+- }
++ } while (likely(!vhost_exceeds_weight(vq, ++c, 0)));
+ out:
+ mutex_unlock(&vq->mutex);
+ }
+@@ -1433,7 +1439,8 @@ static int vhost_scsi_open(struct inode *inode, struct file *f)
+ vqs[i] = &vs->vqs[i].vq;
+ vs->vqs[i].vq.handle_kick = vhost_scsi_handle_kick;
+ }
+- vhost_dev_init(&vs->dev, vqs, VHOST_SCSI_MAX_VQ);
++ vhost_dev_init(&vs->dev, vqs, VHOST_SCSI_MAX_VQ,
++ VHOST_SCSI_WEIGHT, 0);
+
+ vhost_scsi_init_inflight(vs, NULL);
+
+diff --git a/drivers/vhost/vhost.c b/drivers/vhost/vhost.c
+index a54dbfe664cd..8da95d4ac4b7 100644
+--- a/drivers/vhost/vhost.c
++++ b/drivers/vhost/vhost.c
+@@ -393,8 +393,24 @@ static void vhost_dev_free_iovecs(struct vhost_dev *dev)
+ vhost_vq_free_iovecs(dev->vqs[i]);
+ }
+
++bool vhost_exceeds_weight(struct vhost_virtqueue *vq,
++ int pkts, int total_len)
++{
++ struct vhost_dev *dev = vq->dev;
++
++ if ((dev->byte_weight && total_len >= dev->byte_weight) ||
++ pkts >= dev->weight) {
++ vhost_poll_queue(&vq->poll);
++ return true;
++ }
++
++ return false;
++}
++EXPORT_SYMBOL_GPL(vhost_exceeds_weight);
++
+ void vhost_dev_init(struct vhost_dev *dev,
+- struct vhost_virtqueue **vqs, int nvqs)
++ struct vhost_virtqueue **vqs, int nvqs,
++ int weight, int byte_weight)
+ {
+ struct vhost_virtqueue *vq;
+ int i;
+@@ -408,6 +424,8 @@ void vhost_dev_init(struct vhost_dev *dev,
+ dev->iotlb = NULL;
+ dev->mm = NULL;
+ dev->worker = NULL;
++ dev->weight = weight;
++ dev->byte_weight = byte_weight;
+ init_llist_head(&dev->work_list);
+ init_waitqueue_head(&dev->wait);
+ INIT_LIST_HEAD(&dev->read_list);
+diff --git a/drivers/vhost/vhost.h b/drivers/vhost/vhost.h
+index e8efe1af7487..7932ad8d071a 100644
+--- a/drivers/vhost/vhost.h
++++ b/drivers/vhost/vhost.h
+@@ -164,9 +164,13 @@ struct vhost_dev {
+ struct list_head read_list;
+ struct list_head pending_list;
+ wait_queue_head_t wait;
++ int weight;
++ int byte_weight;
+ };
+
+-void vhost_dev_init(struct vhost_dev *, struct vhost_virtqueue **vqs, int nvqs);
++bool vhost_exceeds_weight(struct vhost_virtqueue *vq, int pkts, int total_len);
++void vhost_dev_init(struct vhost_dev *, struct vhost_virtqueue **vqs,
++ int nvqs, int weight, int byte_weight);
+ long vhost_dev_set_owner(struct vhost_dev *dev);
+ bool vhost_dev_has_owner(struct vhost_dev *dev);
+ long vhost_dev_check_owner(struct vhost_dev *);
+diff --git a/drivers/vhost/vsock.c b/drivers/vhost/vsock.c
+index 3cefd602b5b1..a775493b7b67 100644
+--- a/drivers/vhost/vsock.c
++++ b/drivers/vhost/vsock.c
+@@ -21,6 +21,14 @@
+ #include "vhost.h"
+
+ #define VHOST_VSOCK_DEFAULT_HOST_CID 2
++/* Max number of bytes transferred before requeueing the job.
++ * Using this limit prevents one virtqueue from starving others. */
++#define VHOST_VSOCK_WEIGHT 0x80000
++/* Max number of packets transferred before requeueing the job.
++ * Using this limit prevents one virtqueue from starving others with
++ * small pkts.
++ */
++#define VHOST_VSOCK_PKT_WEIGHT 256
+
+ enum {
+ VHOST_VSOCK_FEATURES = VHOST_FEATURES,
+@@ -529,7 +537,9 @@ static int vhost_vsock_dev_open(struct inode *inode, struct file *file)
+ vsock->vqs[VSOCK_VQ_TX].handle_kick = vhost_vsock_handle_tx_kick;
+ vsock->vqs[VSOCK_VQ_RX].handle_kick = vhost_vsock_handle_rx_kick;
+
+- vhost_dev_init(&vsock->dev, vqs, ARRAY_SIZE(vsock->vqs));
++ vhost_dev_init(&vsock->dev, vqs, ARRAY_SIZE(vsock->vqs),
++ VHOST_VSOCK_PKT_WEIGHT,
++ VHOST_VSOCK_WEIGHT);
+
+ file->private_data = vsock;
+ spin_lock_init(&vsock->send_pkt_list_lock);
+diff --git a/drivers/xen/xen-pciback/conf_space_capability.c b/drivers/xen/xen-pciback/conf_space_capability.c
+index 7f83e9083e9d..b1a1d7de0894 100644
+--- a/drivers/xen/xen-pciback/conf_space_capability.c
++++ b/drivers/xen/xen-pciback/conf_space_capability.c
+@@ -115,13 +115,12 @@ static int pm_ctrl_write(struct pci_dev *dev, int offset, u16 new_value,
+ {
+ int err;
+ u16 old_value;
+- pci_power_t new_state, old_state;
++ pci_power_t new_state;
+
+ err = pci_read_config_word(dev, offset, &old_value);
+ if (err)
+ goto out;
+
+- old_state = (pci_power_t)(old_value & PCI_PM_CTRL_STATE_MASK);
+ new_state = (pci_power_t)(new_value & PCI_PM_CTRL_STATE_MASK);
+
+ new_value &= PM_OK_BITS;
+diff --git a/fs/cifs/smb2pdu.c b/fs/cifs/smb2pdu.c
+index 52b6e4a40748..5255deac86b2 100644
+--- a/fs/cifs/smb2pdu.c
++++ b/fs/cifs/smb2pdu.c
+@@ -168,7 +168,7 @@ smb2_reconnect(__le16 smb2_command, struct cifs_tcon *tcon)
+ if (tcon == NULL)
+ return 0;
+
+- if (smb2_command == SMB2_TREE_CONNECT)
++ if (smb2_command == SMB2_TREE_CONNECT || smb2_command == SMB2_IOCTL)
+ return 0;
+
+ if (tcon->tidStatus == CifsExiting) {
+@@ -660,7 +660,12 @@ SMB2_sess_alloc_buffer(struct SMB2_sess_data *sess_data)
+ else
+ req->SecurityMode = 0;
+
++#ifdef CONFIG_CIFS_DFS_UPCALL
++ req->Capabilities = cpu_to_le32(SMB2_GLOBAL_CAP_DFS);
++#else
+ req->Capabilities = 0;
++#endif /* DFS_UPCALL */
++
+ req->Channel = 0; /* MBZ */
+
+ sess_data->iov[0].iov_base = (char *)req;
+diff --git a/fs/ocfs2/xattr.c b/fs/ocfs2/xattr.c
+index 01932763b4d1..e108c945ac1f 100644
+--- a/fs/ocfs2/xattr.c
++++ b/fs/ocfs2/xattr.c
+@@ -3832,7 +3832,6 @@ static int ocfs2_xattr_bucket_find(struct inode *inode,
+ u16 blk_per_bucket = ocfs2_blocks_per_xattr_bucket(inode->i_sb);
+ int low_bucket = 0, bucket, high_bucket;
+ struct ocfs2_xattr_bucket *search;
+- u32 last_hash;
+ u64 blkno, lower_blkno = 0;
+
+ search = ocfs2_xattr_bucket_new(inode);
+@@ -3876,8 +3875,6 @@ static int ocfs2_xattr_bucket_find(struct inode *inode,
+ if (xh->xh_count)
+ xe = &xh->xh_entries[le16_to_cpu(xh->xh_count) - 1];
+
+- last_hash = le32_to_cpu(xe->xe_name_hash);
+-
+ /* record lower_blkno which may be the insert place. */
+ lower_blkno = blkno;
+
+diff --git a/include/asm-generic/getorder.h b/include/asm-generic/getorder.h
+index 65e4468ac53d..52fbf236a90e 100644
+--- a/include/asm-generic/getorder.h
++++ b/include/asm-generic/getorder.h
+@@ -6,24 +6,6 @@
+ #include <linux/compiler.h>
+ #include <linux/log2.h>
+
+-/*
+- * Runtime evaluation of get_order()
+- */
+-static inline __attribute_const__
+-int __get_order(unsigned long size)
+-{
+- int order;
+-
+- size--;
+- size >>= PAGE_SHIFT;
+-#if BITS_PER_LONG == 32
+- order = fls(size);
+-#else
+- order = fls64(size);
+-#endif
+- return order;
+-}
+-
+ /**
+ * get_order - Determine the allocation order of a memory size
+ * @size: The size for which to get the order
+@@ -42,19 +24,27 @@ int __get_order(unsigned long size)
+ * to hold an object of the specified size.
+ *
+ * The result is undefined if the size is 0.
+- *
+- * This function may be used to initialise variables with compile time
+- * evaluations of constants.
+ */
+-#define get_order(n) \
+-( \
+- __builtin_constant_p(n) ? ( \
+- ((n) == 0UL) ? BITS_PER_LONG - PAGE_SHIFT : \
+- (((n) < (1UL << PAGE_SHIFT)) ? 0 : \
+- ilog2((n) - 1) - PAGE_SHIFT + 1) \
+- ) : \
+- __get_order(n) \
+-)
++static inline __attribute_const__ int get_order(unsigned long size)
++{
++ if (__builtin_constant_p(size)) {
++ if (!size)
++ return BITS_PER_LONG - PAGE_SHIFT;
++
++ if (size < (1UL << PAGE_SHIFT))
++ return 0;
++
++ return ilog2((size) - 1) - PAGE_SHIFT + 1;
++ }
++
++ size--;
++ size >>= PAGE_SHIFT;
++#if BITS_PER_LONG == 32
++ return fls(size);
++#else
++ return fls64(size);
++#endif
++}
+
+ #endif /* __ASSEMBLY__ */
+
+diff --git a/include/linux/filter.h b/include/linux/filter.h
+index 1f09c521adfe..0837d904405a 100644
+--- a/include/linux/filter.h
++++ b/include/linux/filter.h
+@@ -599,6 +599,7 @@ void bpf_warn_invalid_xdp_action(u32 act);
+ #ifdef CONFIG_BPF_JIT
+ extern int bpf_jit_enable;
+ extern int bpf_jit_harden;
++extern long bpf_jit_limit;
+
+ typedef void (*bpf_jit_fill_hole_t)(void *area, unsigned int size);
+
+diff --git a/include/linux/siphash.h b/include/linux/siphash.h
+new file mode 100644
+index 000000000000..bf21591a9e5e
+--- /dev/null
++++ b/include/linux/siphash.h
+@@ -0,0 +1,145 @@
++/* Copyright (C) 2016 Jason A. Donenfeld <Jason@zx2c4.com>. All Rights Reserved.
++ *
++ * This file is provided under a dual BSD/GPLv2 license.
++ *
++ * SipHash: a fast short-input PRF
++ * https://131002.net/siphash/
++ *
++ * This implementation is specifically for SipHash2-4 for a secure PRF
++ * and HalfSipHash1-3/SipHash1-3 for an insecure PRF only suitable for
++ * hashtables.
++ */
++
++#ifndef _LINUX_SIPHASH_H
++#define _LINUX_SIPHASH_H
++
++#include <linux/types.h>
++#include <linux/kernel.h>
++
++#define SIPHASH_ALIGNMENT __alignof__(u64)
++typedef struct {
++ u64 key[2];
++} siphash_key_t;
++
++static inline bool siphash_key_is_zero(const siphash_key_t *key)
++{
++ return !(key->key[0] | key->key[1]);
++}
++
++u64 __siphash_aligned(const void *data, size_t len, const siphash_key_t *key);
++#ifndef CONFIG_HAVE_EFFICIENT_UNALIGNED_ACCESS
++u64 __siphash_unaligned(const void *data, size_t len, const siphash_key_t *key);
++#endif
++
++u64 siphash_1u64(const u64 a, const siphash_key_t *key);
++u64 siphash_2u64(const u64 a, const u64 b, const siphash_key_t *key);
++u64 siphash_3u64(const u64 a, const u64 b, const u64 c,
++ const siphash_key_t *key);
++u64 siphash_4u64(const u64 a, const u64 b, const u64 c, const u64 d,
++ const siphash_key_t *key);
++u64 siphash_1u32(const u32 a, const siphash_key_t *key);
++u64 siphash_3u32(const u32 a, const u32 b, const u32 c,
++ const siphash_key_t *key);
++
++static inline u64 siphash_2u32(const u32 a, const u32 b,
++ const siphash_key_t *key)
++{
++ return siphash_1u64((u64)b << 32 | a, key);
++}
++static inline u64 siphash_4u32(const u32 a, const u32 b, const u32 c,
++ const u32 d, const siphash_key_t *key)
++{
++ return siphash_2u64((u64)b << 32 | a, (u64)d << 32 | c, key);
++}
++
++
++static inline u64 ___siphash_aligned(const __le64 *data, size_t len,
++ const siphash_key_t *key)
++{
++ if (__builtin_constant_p(len) && len == 4)
++ return siphash_1u32(le32_to_cpup((const __le32 *)data), key);
++ if (__builtin_constant_p(len) && len == 8)
++ return siphash_1u64(le64_to_cpu(data[0]), key);
++ if (__builtin_constant_p(len) && len == 16)
++ return siphash_2u64(le64_to_cpu(data[0]), le64_to_cpu(data[1]),
++ key);
++ if (__builtin_constant_p(len) && len == 24)
++ return siphash_3u64(le64_to_cpu(data[0]), le64_to_cpu(data[1]),
++ le64_to_cpu(data[2]), key);
++ if (__builtin_constant_p(len) && len == 32)
++ return siphash_4u64(le64_to_cpu(data[0]), le64_to_cpu(data[1]),
++ le64_to_cpu(data[2]), le64_to_cpu(data[3]),
++ key);
++ return __siphash_aligned(data, len, key);
++}
++
++/**
++ * siphash - compute 64-bit siphash PRF value
++ * @data: buffer to hash
++ * @size: size of @data
++ * @key: the siphash key
++ */
++static inline u64 siphash(const void *data, size_t len,
++ const siphash_key_t *key)
++{
++#ifndef CONFIG_HAVE_EFFICIENT_UNALIGNED_ACCESS
++ if (!IS_ALIGNED((unsigned long)data, SIPHASH_ALIGNMENT))
++ return __siphash_unaligned(data, len, key);
++#endif
++ return ___siphash_aligned(data, len, key);
++}
++
++#define HSIPHASH_ALIGNMENT __alignof__(unsigned long)
++typedef struct {
++ unsigned long key[2];
++} hsiphash_key_t;
++
++u32 __hsiphash_aligned(const void *data, size_t len,
++ const hsiphash_key_t *key);
++#ifndef CONFIG_HAVE_EFFICIENT_UNALIGNED_ACCESS
++u32 __hsiphash_unaligned(const void *data, size_t len,
++ const hsiphash_key_t *key);
++#endif
++
++u32 hsiphash_1u32(const u32 a, const hsiphash_key_t *key);
++u32 hsiphash_2u32(const u32 a, const u32 b, const hsiphash_key_t *key);
++u32 hsiphash_3u32(const u32 a, const u32 b, const u32 c,
++ const hsiphash_key_t *key);
++u32 hsiphash_4u32(const u32 a, const u32 b, const u32 c, const u32 d,
++ const hsiphash_key_t *key);
++
++static inline u32 ___hsiphash_aligned(const __le32 *data, size_t len,
++ const hsiphash_key_t *key)
++{
++ if (__builtin_constant_p(len) && len == 4)
++ return hsiphash_1u32(le32_to_cpu(data[0]), key);
++ if (__builtin_constant_p(len) && len == 8)
++ return hsiphash_2u32(le32_to_cpu(data[0]), le32_to_cpu(data[1]),
++ key);
++ if (__builtin_constant_p(len) && len == 12)
++ return hsiphash_3u32(le32_to_cpu(data[0]), le32_to_cpu(data[1]),
++ le32_to_cpu(data[2]), key);
++ if (__builtin_constant_p(len) && len == 16)
++ return hsiphash_4u32(le32_to_cpu(data[0]), le32_to_cpu(data[1]),
++ le32_to_cpu(data[2]), le32_to_cpu(data[3]),
++ key);
++ return __hsiphash_aligned(data, len, key);
++}
++
++/**
++ * hsiphash - compute 32-bit hsiphash PRF value
++ * @data: buffer to hash
++ * @size: size of @data
++ * @key: the hsiphash key
++ */
++static inline u32 hsiphash(const void *data, size_t len,
++ const hsiphash_key_t *key)
++{
++#ifndef CONFIG_HAVE_EFFICIENT_UNALIGNED_ACCESS
++ if (!IS_ALIGNED((unsigned long)data, HSIPHASH_ALIGNMENT))
++ return __hsiphash_unaligned(data, len, key);
++#endif
++ return ___hsiphash_aligned(data, len, key);
++}
++
++#endif /* _LINUX_SIPHASH_H */
+diff --git a/include/net/netfilter/nf_conntrack.h b/include/net/netfilter/nf_conntrack.h
+index 9ae819e27940..b57a9f37c297 100644
+--- a/include/net/netfilter/nf_conntrack.h
++++ b/include/net/netfilter/nf_conntrack.h
+@@ -336,6 +336,8 @@ struct nf_conn *nf_ct_tmpl_alloc(struct net *net,
+ gfp_t flags);
+ void nf_ct_tmpl_free(struct nf_conn *tmpl);
+
++u32 nf_ct_get_id(const struct nf_conn *ct);
++
+ #define NF_CT_STAT_INC(net, count) __this_cpu_inc((net)->ct.stat->count)
+ #define NF_CT_STAT_INC_ATOMIC(net, count) this_cpu_inc((net)->ct.stat->count)
+ #define NF_CT_STAT_ADD_ATOMIC(net, count, v) this_cpu_add((net)->ct.stat->count, (v))
+diff --git a/include/net/netns/ipv4.h b/include/net/netns/ipv4.h
+index bf619a67ec03..af1c5e7c7e94 100644
+--- a/include/net/netns/ipv4.h
++++ b/include/net/netns/ipv4.h
+@@ -8,6 +8,7 @@
+ #include <linux/uidgid.h>
+ #include <net/inet_frag.h>
+ #include <linux/rcupdate.h>
++#include <linux/siphash.h>
+
+ struct tcpm_hash_bucket;
+ struct ctl_table_header;
+@@ -137,5 +138,6 @@ struct netns_ipv4 {
+ int sysctl_fib_multipath_use_neigh;
+ #endif
+ atomic_t rt_genid;
++ siphash_key_t ip_id_key;
+ };
+ #endif
+diff --git a/include/sound/compress_driver.h b/include/sound/compress_driver.h
+index 96bc5acdade3..49482080311a 100644
+--- a/include/sound/compress_driver.h
++++ b/include/sound/compress_driver.h
+@@ -185,10 +185,7 @@ static inline void snd_compr_drain_notify(struct snd_compr_stream *stream)
+ if (snd_BUG_ON(!stream))
+ return;
+
+- if (stream->direction == SND_COMPRESS_PLAYBACK)
+- stream->runtime->state = SNDRV_PCM_STATE_SETUP;
+- else
+- stream->runtime->state = SNDRV_PCM_STATE_PREPARED;
++ stream->runtime->state = SNDRV_PCM_STATE_SETUP;
+
+ wake_up(&stream->runtime->sleep);
+ }
+diff --git a/kernel/bpf/core.c b/kernel/bpf/core.c
+index 879ca844ba1d..df2ebce927ec 100644
+--- a/kernel/bpf/core.c
++++ b/kernel/bpf/core.c
+@@ -208,27 +208,80 @@ struct bpf_prog *bpf_patch_insn_single(struct bpf_prog *prog, u32 off,
+ }
+
+ #ifdef CONFIG_BPF_JIT
++/* All BPF JIT sysctl knobs here. */
++int bpf_jit_enable __read_mostly = IS_BUILTIN(CONFIG_BPF_JIT_ALWAYS_ON);
++int bpf_jit_harden __read_mostly;
++long bpf_jit_limit __read_mostly;
++
++static atomic_long_t bpf_jit_current;
++
++/* Can be overridden by an arch's JIT compiler if it has a custom,
++ * dedicated BPF backend memory area, or if neither of the two
++ * below apply.
++ */
++u64 __weak bpf_jit_alloc_exec_limit(void)
++{
++#if defined(MODULES_VADDR)
++ return MODULES_END - MODULES_VADDR;
++#else
++ return VMALLOC_END - VMALLOC_START;
++#endif
++}
++
++static int __init bpf_jit_charge_init(void)
++{
++ /* Only used as heuristic here to derive limit. */
++ bpf_jit_limit = min_t(u64, round_up(bpf_jit_alloc_exec_limit() >> 2,
++ PAGE_SIZE), LONG_MAX);
++ return 0;
++}
++pure_initcall(bpf_jit_charge_init);
++
++static int bpf_jit_charge_modmem(u32 pages)
++{
++ if (atomic_long_add_return(pages, &bpf_jit_current) >
++ (bpf_jit_limit >> PAGE_SHIFT)) {
++ if (!capable(CAP_SYS_ADMIN)) {
++ atomic_long_sub(pages, &bpf_jit_current);
++ return -EPERM;
++ }
++ }
++
++ return 0;
++}
++
++static void bpf_jit_uncharge_modmem(u32 pages)
++{
++ atomic_long_sub(pages, &bpf_jit_current);
++}
++
+ struct bpf_binary_header *
+ bpf_jit_binary_alloc(unsigned int proglen, u8 **image_ptr,
+ unsigned int alignment,
+ bpf_jit_fill_hole_t bpf_fill_ill_insns)
+ {
+ struct bpf_binary_header *hdr;
+- unsigned int size, hole, start;
++ u32 size, hole, start, pages;
+
+ /* Most of BPF filters are really small, but if some of them
+ * fill a page, allow at least 128 extra bytes to insert a
+ * random section of illegal instructions.
+ */
+ size = round_up(proglen + sizeof(*hdr) + 128, PAGE_SIZE);
++ pages = size / PAGE_SIZE;
++
++ if (bpf_jit_charge_modmem(pages))
++ return NULL;
+ hdr = module_alloc(size);
+- if (hdr == NULL)
++ if (!hdr) {
++ bpf_jit_uncharge_modmem(pages);
+ return NULL;
++ }
+
+ /* Fill space with illegal/arch-dep instructions. */
+ bpf_fill_ill_insns(hdr, size);
+
+- hdr->pages = size / PAGE_SIZE;
++ hdr->pages = pages;
+ hole = min_t(unsigned int, size - (proglen + sizeof(*hdr)),
+ PAGE_SIZE - sizeof(*hdr));
+ start = (get_random_int() % hole) & ~(alignment - 1);
+@@ -241,11 +294,12 @@ bpf_jit_binary_alloc(unsigned int proglen, u8 **image_ptr,
+
+ void bpf_jit_binary_free(struct bpf_binary_header *hdr)
+ {
++ u32 pages = hdr->pages;
++
+ module_memfree(hdr);
++ bpf_jit_uncharge_modmem(pages);
+ }
+
+-int bpf_jit_harden __read_mostly;
+-
+ static int bpf_jit_blind_insn(const struct bpf_insn *from,
+ const struct bpf_insn *aux,
+ struct bpf_insn *to_buff)
+@@ -925,8 +979,13 @@ load_byte:
+ STACK_FRAME_NON_STANDARD(__bpf_prog_run); /* jump table */
+
+ #else
+-static unsigned int __bpf_prog_ret0(void *ctx, const struct bpf_insn *insn)
++static unsigned int __bpf_prog_ret0_warn(void *ctx,
++ const struct bpf_insn *insn)
+ {
++ /* If this handler ever gets executed, then BPF_JIT_ALWAYS_ON
++ * is not working properly, so warn about it!
++ */
++ WARN_ON_ONCE(1);
+ return 0;
+ }
+ #endif
+@@ -981,7 +1040,7 @@ struct bpf_prog *bpf_prog_select_runtime(struct bpf_prog *fp, int *err)
+ #ifndef CONFIG_BPF_JIT_ALWAYS_ON
+ fp->bpf_func = (void *) __bpf_prog_run;
+ #else
+- fp->bpf_func = (void *) __bpf_prog_ret0;
++ fp->bpf_func = (void *) __bpf_prog_ret0_warn;
+ #endif
+
+ /* eBPF JITs can rewrite the program in case constant
+diff --git a/kernel/events/core.c b/kernel/events/core.c
+index 93d7333c64d8..5bbf7537a612 100644
+--- a/kernel/events/core.c
++++ b/kernel/events/core.c
+@@ -10130,7 +10130,7 @@ perf_event_create_kernel_counter(struct perf_event_attr *attr, int cpu,
+ goto err_unlock;
+ }
+
+- perf_install_in_context(ctx, event, cpu);
++ perf_install_in_context(ctx, event, event->cpu);
+ perf_unpin_context(ctx);
+ mutex_unlock(&ctx->mutex);
+
+diff --git a/lib/Kconfig.debug b/lib/Kconfig.debug
+index 58a22ca10f33..4f561860bf41 100644
+--- a/lib/Kconfig.debug
++++ b/lib/Kconfig.debug
+@@ -1822,9 +1822,9 @@ config TEST_HASH
+ tristate "Perform selftest on hash functions"
+ default n
+ help
+- Enable this option to test the kernel's integer (<linux/hash,h>)
+- and string (<linux/stringhash.h>) hash functions on boot
+- (or module load).
++ Enable this option to test the kernel's integer (<linux/hash.h>),
++ string (<linux/stringhash.h>), and siphash (<linux/siphash.h>)
++ hash functions on boot (or module load).
+
+ This is intended to help people writing architecture-specific
+ optimized versions. If unsure, say N.
+diff --git a/lib/Makefile b/lib/Makefile
+index 2447a218fff8..452d2956a5a2 100644
+--- a/lib/Makefile
++++ b/lib/Makefile
+@@ -22,7 +22,8 @@ lib-y := ctype.o string.o vsprintf.o cmdline.o \
+ sha1.o chacha20.o md5.o irq_regs.o argv_split.o \
+ flex_proportions.o ratelimit.o show_mem.o \
+ is_single_threaded.o plist.o decompress.o kobject_uevent.o \
+- earlycpio.o seq_buf.o nmi_backtrace.o nodemask.o win_minmax.o
++ earlycpio.o seq_buf.o siphash.o \
++ nmi_backtrace.o nodemask.o win_minmax.o
+
+ lib-$(CONFIG_MMU) += ioremap.o
+ lib-$(CONFIG_SMP) += cpumask.o
+@@ -44,7 +45,7 @@ obj-$(CONFIG_TEST_HEXDUMP) += test_hexdump.o
+ obj-y += kstrtox.o
+ obj-$(CONFIG_TEST_BPF) += test_bpf.o
+ obj-$(CONFIG_TEST_FIRMWARE) += test_firmware.o
+-obj-$(CONFIG_TEST_HASH) += test_hash.o
++obj-$(CONFIG_TEST_HASH) += test_hash.o test_siphash.o
+ obj-$(CONFIG_TEST_KASAN) += test_kasan.o
+ CFLAGS_test_kasan.o += -fno-builtin
+ obj-$(CONFIG_TEST_KSTRTOX) += test-kstrtox.o
+diff --git a/lib/siphash.c b/lib/siphash.c
+new file mode 100644
+index 000000000000..3ae58b4edad6
+--- /dev/null
++++ b/lib/siphash.c
+@@ -0,0 +1,551 @@
++/* Copyright (C) 2016 Jason A. Donenfeld <Jason@zx2c4.com>. All Rights Reserved.
++ *
++ * This file is provided under a dual BSD/GPLv2 license.
++ *
++ * SipHash: a fast short-input PRF
++ * https://131002.net/siphash/
++ *
++ * This implementation is specifically for SipHash2-4 for a secure PRF
++ * and HalfSipHash1-3/SipHash1-3 for an insecure PRF only suitable for
++ * hashtables.
++ */
++
++#include <linux/siphash.h>
++#include <asm/unaligned.h>
++
++#if defined(CONFIG_DCACHE_WORD_ACCESS) && BITS_PER_LONG == 64
++#include <linux/dcache.h>
++#include <asm/word-at-a-time.h>
++#endif
++
++#define SIPROUND \
++ do { \
++ v0 += v1; v1 = rol64(v1, 13); v1 ^= v0; v0 = rol64(v0, 32); \
++ v2 += v3; v3 = rol64(v3, 16); v3 ^= v2; \
++ v0 += v3; v3 = rol64(v3, 21); v3 ^= v0; \
++ v2 += v1; v1 = rol64(v1, 17); v1 ^= v2; v2 = rol64(v2, 32); \
++ } while (0)
++
++#define PREAMBLE(len) \
++ u64 v0 = 0x736f6d6570736575ULL; \
++ u64 v1 = 0x646f72616e646f6dULL; \
++ u64 v2 = 0x6c7967656e657261ULL; \
++ u64 v3 = 0x7465646279746573ULL; \
++ u64 b = ((u64)(len)) << 56; \
++ v3 ^= key->key[1]; \
++ v2 ^= key->key[0]; \
++ v1 ^= key->key[1]; \
++ v0 ^= key->key[0];
++
++#define POSTAMBLE \
++ v3 ^= b; \
++ SIPROUND; \
++ SIPROUND; \
++ v0 ^= b; \
++ v2 ^= 0xff; \
++ SIPROUND; \
++ SIPROUND; \
++ SIPROUND; \
++ SIPROUND; \
++ return (v0 ^ v1) ^ (v2 ^ v3);
++
++u64 __siphash_aligned(const void *data, size_t len, const siphash_key_t *key)
++{
++ const u8 *end = data + len - (len % sizeof(u64));
++ const u8 left = len & (sizeof(u64) - 1);
++ u64 m;
++ PREAMBLE(len)
++ for (; data != end; data += sizeof(u64)) {
++ m = le64_to_cpup(data);
++ v3 ^= m;
++ SIPROUND;
++ SIPROUND;
++ v0 ^= m;
++ }
++#if defined(CONFIG_DCACHE_WORD_ACCESS) && BITS_PER_LONG == 64
++ if (left)
++ b |= le64_to_cpu((__force __le64)(load_unaligned_zeropad(data) &
++ bytemask_from_count(left)));
++#else
++ switch (left) {
++ case 7: b |= ((u64)end[6]) << 48;
++ case 6: b |= ((u64)end[5]) << 40;
++ case 5: b |= ((u64)end[4]) << 32;
++ case 4: b |= le32_to_cpup(data); break;
++ case 3: b |= ((u64)end[2]) << 16;
++ case 2: b |= le16_to_cpup(data); break;
++ case 1: b |= end[0];
++ }
++#endif
++ POSTAMBLE
++}
++EXPORT_SYMBOL(__siphash_aligned);
++
++#ifndef CONFIG_HAVE_EFFICIENT_UNALIGNED_ACCESS
++u64 __siphash_unaligned(const void *data, size_t len, const siphash_key_t *key)
++{
++ const u8 *end = data + len - (len % sizeof(u64));
++ const u8 left = len & (sizeof(u64) - 1);
++ u64 m;
++ PREAMBLE(len)
++ for (; data != end; data += sizeof(u64)) {
++ m = get_unaligned_le64(data);
++ v3 ^= m;
++ SIPROUND;
++ SIPROUND;
++ v0 ^= m;
++ }
++#if defined(CONFIG_DCACHE_WORD_ACCESS) && BITS_PER_LONG == 64
++ if (left)
++ b |= le64_to_cpu((__force __le64)(load_unaligned_zeropad(data) &
++ bytemask_from_count(left)));
++#else
++ switch (left) {
++ case 7: b |= ((u64)end[6]) << 48;
++ case 6: b |= ((u64)end[5]) << 40;
++ case 5: b |= ((u64)end[4]) << 32;
++ case 4: b |= get_unaligned_le32(end); break;
++ case 3: b |= ((u64)end[2]) << 16;
++ case 2: b |= get_unaligned_le16(end); break;
++ case 1: b |= end[0];
++ }
++#endif
++ POSTAMBLE
++}
++EXPORT_SYMBOL(__siphash_unaligned);
++#endif
++
++/**
++ * siphash_1u64 - compute 64-bit siphash PRF value of a u64
++ * @first: first u64
++ * @key: the siphash key
++ */
++u64 siphash_1u64(const u64 first, const siphash_key_t *key)
++{
++ PREAMBLE(8)
++ v3 ^= first;
++ SIPROUND;
++ SIPROUND;
++ v0 ^= first;
++ POSTAMBLE
++}
++EXPORT_SYMBOL(siphash_1u64);
++
++/**
++ * siphash_2u64 - compute 64-bit siphash PRF value of 2 u64
++ * @first: first u64
++ * @second: second u64
++ * @key: the siphash key
++ */
++u64 siphash_2u64(const u64 first, const u64 second, const siphash_key_t *key)
++{
++ PREAMBLE(16)
++ v3 ^= first;
++ SIPROUND;
++ SIPROUND;
++ v0 ^= first;
++ v3 ^= second;
++ SIPROUND;
++ SIPROUND;
++ v0 ^= second;
++ POSTAMBLE
++}
++EXPORT_SYMBOL(siphash_2u64);
++
++/**
++ * siphash_3u64 - compute 64-bit siphash PRF value of 3 u64
++ * @first: first u64
++ * @second: second u64
++ * @third: third u64
++ * @key: the siphash key
++ */
++u64 siphash_3u64(const u64 first, const u64 second, const u64 third,
++ const siphash_key_t *key)
++{
++ PREAMBLE(24)
++ v3 ^= first;
++ SIPROUND;
++ SIPROUND;
++ v0 ^= first;
++ v3 ^= second;
++ SIPROUND;
++ SIPROUND;
++ v0 ^= second;
++ v3 ^= third;
++ SIPROUND;
++ SIPROUND;
++ v0 ^= third;
++ POSTAMBLE
++}
++EXPORT_SYMBOL(siphash_3u64);
++
++/**
++ * siphash_4u64 - compute 64-bit siphash PRF value of 4 u64
++ * @first: first u64
++ * @second: second u64
++ * @third: third u64
++ * @forth: forth u64
++ * @key: the siphash key
++ */
++u64 siphash_4u64(const u64 first, const u64 second, const u64 third,
++ const u64 forth, const siphash_key_t *key)
++{
++ PREAMBLE(32)
++ v3 ^= first;
++ SIPROUND;
++ SIPROUND;
++ v0 ^= first;
++ v3 ^= second;
++ SIPROUND;
++ SIPROUND;
++ v0 ^= second;
++ v3 ^= third;
++ SIPROUND;
++ SIPROUND;
++ v0 ^= third;
++ v3 ^= forth;
++ SIPROUND;
++ SIPROUND;
++ v0 ^= forth;
++ POSTAMBLE
++}
++EXPORT_SYMBOL(siphash_4u64);
++
++u64 siphash_1u32(const u32 first, const siphash_key_t *key)
++{
++ PREAMBLE(4)
++ b |= first;
++ POSTAMBLE
++}
++EXPORT_SYMBOL(siphash_1u32);
++
++u64 siphash_3u32(const u32 first, const u32 second, const u32 third,
++ const siphash_key_t *key)
++{
++ u64 combined = (u64)second << 32 | first;
++ PREAMBLE(12)
++ v3 ^= combined;
++ SIPROUND;
++ SIPROUND;
++ v0 ^= combined;
++ b |= third;
++ POSTAMBLE
++}
++EXPORT_SYMBOL(siphash_3u32);
++
++#if BITS_PER_LONG == 64
++/* Note that on 64-bit, we make HalfSipHash1-3 actually be SipHash1-3, for
++ * performance reasons. On 32-bit, below, we actually implement HalfSipHash1-3.
++ */
++
++#define HSIPROUND SIPROUND
++#define HPREAMBLE(len) PREAMBLE(len)
++#define HPOSTAMBLE \
++ v3 ^= b; \
++ HSIPROUND; \
++ v0 ^= b; \
++ v2 ^= 0xff; \
++ HSIPROUND; \
++ HSIPROUND; \
++ HSIPROUND; \
++ return (v0 ^ v1) ^ (v2 ^ v3);
++
++u32 __hsiphash_aligned(const void *data, size_t len, const hsiphash_key_t *key)
++{
++ const u8 *end = data + len - (len % sizeof(u64));
++ const u8 left = len & (sizeof(u64) - 1);
++ u64 m;
++ HPREAMBLE(len)
++ for (; data != end; data += sizeof(u64)) {
++ m = le64_to_cpup(data);
++ v3 ^= m;
++ HSIPROUND;
++ v0 ^= m;
++ }
++#if defined(CONFIG_DCACHE_WORD_ACCESS) && BITS_PER_LONG == 64
++ if (left)
++ b |= le64_to_cpu((__force __le64)(load_unaligned_zeropad(data) &
++ bytemask_from_count(left)));
++#else
++ switch (left) {
++ case 7: b |= ((u64)end[6]) << 48;
++ case 6: b |= ((u64)end[5]) << 40;
++ case 5: b |= ((u64)end[4]) << 32;
++ case 4: b |= le32_to_cpup(data); break;
++ case 3: b |= ((u64)end[2]) << 16;
++ case 2: b |= le16_to_cpup(data); break;
++ case 1: b |= end[0];
++ }
++#endif
++ HPOSTAMBLE
++}
++EXPORT_SYMBOL(__hsiphash_aligned);
++
++#ifndef CONFIG_HAVE_EFFICIENT_UNALIGNED_ACCESS
++u32 __hsiphash_unaligned(const void *data, size_t len,
++ const hsiphash_key_t *key)
++{
++ const u8 *end = data + len - (len % sizeof(u64));
++ const u8 left = len & (sizeof(u64) - 1);
++ u64 m;
++ HPREAMBLE(len)
++ for (; data != end; data += sizeof(u64)) {
++ m = get_unaligned_le64(data);
++ v3 ^= m;
++ HSIPROUND;
++ v0 ^= m;
++ }
++#if defined(CONFIG_DCACHE_WORD_ACCESS) && BITS_PER_LONG == 64
++ if (left)
++ b |= le64_to_cpu((__force __le64)(load_unaligned_zeropad(data) &
++ bytemask_from_count(left)));
++#else
++ switch (left) {
++ case 7: b |= ((u64)end[6]) << 48;
++ case 6: b |= ((u64)end[5]) << 40;
++ case 5: b |= ((u64)end[4]) << 32;
++ case 4: b |= get_unaligned_le32(end); break;
++ case 3: b |= ((u64)end[2]) << 16;
++ case 2: b |= get_unaligned_le16(end); break;
++ case 1: b |= end[0];
++ }
++#endif
++ HPOSTAMBLE
++}
++EXPORT_SYMBOL(__hsiphash_unaligned);
++#endif
++
++/**
++ * hsiphash_1u32 - compute 64-bit hsiphash PRF value of a u32
++ * @first: first u32
++ * @key: the hsiphash key
++ */
++u32 hsiphash_1u32(const u32 first, const hsiphash_key_t *key)
++{
++ HPREAMBLE(4)
++ b |= first;
++ HPOSTAMBLE
++}
++EXPORT_SYMBOL(hsiphash_1u32);
++
++/**
++ * hsiphash_2u32 - compute 32-bit hsiphash PRF value of 2 u32
++ * @first: first u32
++ * @second: second u32
++ * @key: the hsiphash key
++ */
++u32 hsiphash_2u32(const u32 first, const u32 second, const hsiphash_key_t *key)
++{
++ u64 combined = (u64)second << 32 | first;
++ HPREAMBLE(8)
++ v3 ^= combined;
++ HSIPROUND;
++ v0 ^= combined;
++ HPOSTAMBLE
++}
++EXPORT_SYMBOL(hsiphash_2u32);
++
++/**
++ * hsiphash_3u32 - compute 32-bit hsiphash PRF value of 3 u32
++ * @first: first u32
++ * @second: second u32
++ * @third: third u32
++ * @key: the hsiphash key
++ */
++u32 hsiphash_3u32(const u32 first, const u32 second, const u32 third,
++ const hsiphash_key_t *key)
++{
++ u64 combined = (u64)second << 32 | first;
++ HPREAMBLE(12)
++ v3 ^= combined;
++ HSIPROUND;
++ v0 ^= combined;
++ b |= third;
++ HPOSTAMBLE
++}
++EXPORT_SYMBOL(hsiphash_3u32);
++
++/**
++ * hsiphash_4u32 - compute 32-bit hsiphash PRF value of 4 u32
++ * @first: first u32
++ * @second: second u32
++ * @third: third u32
++ * @forth: forth u32
++ * @key: the hsiphash key
++ */
++u32 hsiphash_4u32(const u32 first, const u32 second, const u32 third,
++ const u32 forth, const hsiphash_key_t *key)
++{
++ u64 combined = (u64)second << 32 | first;
++ HPREAMBLE(16)
++ v3 ^= combined;
++ HSIPROUND;
++ v0 ^= combined;
++ combined = (u64)forth << 32 | third;
++ v3 ^= combined;
++ HSIPROUND;
++ v0 ^= combined;
++ HPOSTAMBLE
++}
++EXPORT_SYMBOL(hsiphash_4u32);
++#else
++#define HSIPROUND \
++ do { \
++ v0 += v1; v1 = rol32(v1, 5); v1 ^= v0; v0 = rol32(v0, 16); \
++ v2 += v3; v3 = rol32(v3, 8); v3 ^= v2; \
++ v0 += v3; v3 = rol32(v3, 7); v3 ^= v0; \
++ v2 += v1; v1 = rol32(v1, 13); v1 ^= v2; v2 = rol32(v2, 16); \
++ } while (0)
++
++#define HPREAMBLE(len) \
++ u32 v0 = 0; \
++ u32 v1 = 0; \
++ u32 v2 = 0x6c796765U; \
++ u32 v3 = 0x74656462U; \
++ u32 b = ((u32)(len)) << 24; \
++ v3 ^= key->key[1]; \
++ v2 ^= key->key[0]; \
++ v1 ^= key->key[1]; \
++ v0 ^= key->key[0];
++
++#define HPOSTAMBLE \
++ v3 ^= b; \
++ HSIPROUND; \
++ v0 ^= b; \
++ v2 ^= 0xff; \
++ HSIPROUND; \
++ HSIPROUND; \
++ HSIPROUND; \
++ return v1 ^ v3;
++
++u32 __hsiphash_aligned(const void *data, size_t len, const hsiphash_key_t *key)
++{
++ const u8 *end = data + len - (len % sizeof(u32));
++ const u8 left = len & (sizeof(u32) - 1);
++ u32 m;
++ HPREAMBLE(len)
++ for (; data != end; data += sizeof(u32)) {
++ m = le32_to_cpup(data);
++ v3 ^= m;
++ HSIPROUND;
++ v0 ^= m;
++ }
++ switch (left) {
++ case 3: b |= ((u32)end[2]) << 16;
++ case 2: b |= le16_to_cpup(data); break;
++ case 1: b |= end[0];
++ }
++ HPOSTAMBLE
++}
++EXPORT_SYMBOL(__hsiphash_aligned);
++
++#ifndef CONFIG_HAVE_EFFICIENT_UNALIGNED_ACCESS
++u32 __hsiphash_unaligned(const void *data, size_t len,
++ const hsiphash_key_t *key)
++{
++ const u8 *end = data + len - (len % sizeof(u32));
++ const u8 left = len & (sizeof(u32) - 1);
++ u32 m;
++ HPREAMBLE(len)
++ for (; data != end; data += sizeof(u32)) {
++ m = get_unaligned_le32(data);
++ v3 ^= m;
++ HSIPROUND;
++ v0 ^= m;
++ }
++ switch (left) {
++ case 3: b |= ((u32)end[2]) << 16;
++ case 2: b |= get_unaligned_le16(end); break;
++ case 1: b |= end[0];
++ }
++ HPOSTAMBLE
++}
++EXPORT_SYMBOL(__hsiphash_unaligned);
++#endif
++
++/**
++ * hsiphash_1u32 - compute 32-bit hsiphash PRF value of a u32
++ * @first: first u32
++ * @key: the hsiphash key
++ */
++u32 hsiphash_1u32(const u32 first, const hsiphash_key_t *key)
++{
++ HPREAMBLE(4)
++ v3 ^= first;
++ HSIPROUND;
++ v0 ^= first;
++ HPOSTAMBLE
++}
++EXPORT_SYMBOL(hsiphash_1u32);
++
++/**
++ * hsiphash_2u32 - compute 32-bit hsiphash PRF value of 2 u32
++ * @first: first u32
++ * @second: second u32
++ * @key: the hsiphash key
++ */
++u32 hsiphash_2u32(const u32 first, const u32 second, const hsiphash_key_t *key)
++{
++ HPREAMBLE(8)
++ v3 ^= first;
++ HSIPROUND;
++ v0 ^= first;
++ v3 ^= second;
++ HSIPROUND;
++ v0 ^= second;
++ HPOSTAMBLE
++}
++EXPORT_SYMBOL(hsiphash_2u32);
++
++/**
++ * hsiphash_3u32 - compute 32-bit hsiphash PRF value of 3 u32
++ * @first: first u32
++ * @second: second u32
++ * @third: third u32
++ * @key: the hsiphash key
++ */
++u32 hsiphash_3u32(const u32 first, const u32 second, const u32 third,
++ const hsiphash_key_t *key)
++{
++ HPREAMBLE(12)
++ v3 ^= first;
++ HSIPROUND;
++ v0 ^= first;
++ v3 ^= second;
++ HSIPROUND;
++ v0 ^= second;
++ v3 ^= third;
++ HSIPROUND;
++ v0 ^= third;
++ HPOSTAMBLE
++}
++EXPORT_SYMBOL(hsiphash_3u32);
++
++/**
++ * hsiphash_4u32 - compute 32-bit hsiphash PRF value of 4 u32
++ * @first: first u32
++ * @second: second u32
++ * @third: third u32
++ * @forth: forth u32
++ * @key: the hsiphash key
++ */
++u32 hsiphash_4u32(const u32 first, const u32 second, const u32 third,
++ const u32 forth, const hsiphash_key_t *key)
++{
++ HPREAMBLE(16)
++ v3 ^= first;
++ HSIPROUND;
++ v0 ^= first;
++ v3 ^= second;
++ HSIPROUND;
++ v0 ^= second;
++ v3 ^= third;
++ HSIPROUND;
++ v0 ^= third;
++ v3 ^= forth;
++ HSIPROUND;
++ v0 ^= forth;
++ HPOSTAMBLE
++}
++EXPORT_SYMBOL(hsiphash_4u32);
++#endif
+diff --git a/lib/test_siphash.c b/lib/test_siphash.c
+new file mode 100644
+index 000000000000..a6d854d933bf
+--- /dev/null
++++ b/lib/test_siphash.c
+@@ -0,0 +1,223 @@
++/* Test cases for siphash.c
++ *
++ * Copyright (C) 2016 Jason A. Donenfeld <Jason@zx2c4.com>. All Rights Reserved.
++ *
++ * This file is provided under a dual BSD/GPLv2 license.
++ *
++ * SipHash: a fast short-input PRF
++ * https://131002.net/siphash/
++ *
++ * This implementation is specifically for SipHash2-4 for a secure PRF
++ * and HalfSipHash1-3/SipHash1-3 for an insecure PRF only suitable for
++ * hashtables.
++ */
++
++#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
++
++#include <linux/siphash.h>
++#include <linux/kernel.h>
++#include <linux/string.h>
++#include <linux/errno.h>
++#include <linux/module.h>
++
++/* Test vectors taken from reference source available at:
++ * https://github.com/veorq/SipHash
++ */
++
++static const siphash_key_t test_key_siphash =
++ {{ 0x0706050403020100ULL, 0x0f0e0d0c0b0a0908ULL }};
++
++static const u64 test_vectors_siphash[64] = {
++ 0x726fdb47dd0e0e31ULL, 0x74f839c593dc67fdULL, 0x0d6c8009d9a94f5aULL,
++ 0x85676696d7fb7e2dULL, 0xcf2794e0277187b7ULL, 0x18765564cd99a68dULL,
++ 0xcbc9466e58fee3ceULL, 0xab0200f58b01d137ULL, 0x93f5f5799a932462ULL,
++ 0x9e0082df0ba9e4b0ULL, 0x7a5dbbc594ddb9f3ULL, 0xf4b32f46226bada7ULL,
++ 0x751e8fbc860ee5fbULL, 0x14ea5627c0843d90ULL, 0xf723ca908e7af2eeULL,
++ 0xa129ca6149be45e5ULL, 0x3f2acc7f57c29bdbULL, 0x699ae9f52cbe4794ULL,
++ 0x4bc1b3f0968dd39cULL, 0xbb6dc91da77961bdULL, 0xbed65cf21aa2ee98ULL,
++ 0xd0f2cbb02e3b67c7ULL, 0x93536795e3a33e88ULL, 0xa80c038ccd5ccec8ULL,
++ 0xb8ad50c6f649af94ULL, 0xbce192de8a85b8eaULL, 0x17d835b85bbb15f3ULL,
++ 0x2f2e6163076bcfadULL, 0xde4daaaca71dc9a5ULL, 0xa6a2506687956571ULL,
++ 0xad87a3535c49ef28ULL, 0x32d892fad841c342ULL, 0x7127512f72f27cceULL,
++ 0xa7f32346f95978e3ULL, 0x12e0b01abb051238ULL, 0x15e034d40fa197aeULL,
++ 0x314dffbe0815a3b4ULL, 0x027990f029623981ULL, 0xcadcd4e59ef40c4dULL,
++ 0x9abfd8766a33735cULL, 0x0e3ea96b5304a7d0ULL, 0xad0c42d6fc585992ULL,
++ 0x187306c89bc215a9ULL, 0xd4a60abcf3792b95ULL, 0xf935451de4f21df2ULL,
++ 0xa9538f0419755787ULL, 0xdb9acddff56ca510ULL, 0xd06c98cd5c0975ebULL,
++ 0xe612a3cb9ecba951ULL, 0xc766e62cfcadaf96ULL, 0xee64435a9752fe72ULL,
++ 0xa192d576b245165aULL, 0x0a8787bf8ecb74b2ULL, 0x81b3e73d20b49b6fULL,
++ 0x7fa8220ba3b2eceaULL, 0x245731c13ca42499ULL, 0xb78dbfaf3a8d83bdULL,
++ 0xea1ad565322a1a0bULL, 0x60e61c23a3795013ULL, 0x6606d7e446282b93ULL,
++ 0x6ca4ecb15c5f91e1ULL, 0x9f626da15c9625f3ULL, 0xe51b38608ef25f57ULL,
++ 0x958a324ceb064572ULL
++};
++
++#if BITS_PER_LONG == 64
++static const hsiphash_key_t test_key_hsiphash =
++ {{ 0x0706050403020100ULL, 0x0f0e0d0c0b0a0908ULL }};
++
++static const u32 test_vectors_hsiphash[64] = {
++ 0x050fc4dcU, 0x7d57ca93U, 0x4dc7d44dU,
++ 0xe7ddf7fbU, 0x88d38328U, 0x49533b67U,
++ 0xc59f22a7U, 0x9bb11140U, 0x8d299a8eU,
++ 0x6c063de4U, 0x92ff097fU, 0xf94dc352U,
++ 0x57b4d9a2U, 0x1229ffa7U, 0xc0f95d34U,
++ 0x2a519956U, 0x7d908b66U, 0x63dbd80cU,
++ 0xb473e63eU, 0x8d297d1cU, 0xa6cce040U,
++ 0x2b45f844U, 0xa320872eU, 0xdae6c123U,
++ 0x67349c8cU, 0x705b0979U, 0xca9913a5U,
++ 0x4ade3b35U, 0xef6cd00dU, 0x4ab1e1f4U,
++ 0x43c5e663U, 0x8c21d1bcU, 0x16a7b60dU,
++ 0x7a8ff9bfU, 0x1f2a753eU, 0xbf186b91U,
++ 0xada26206U, 0xa3c33057U, 0xae3a36a1U,
++ 0x7b108392U, 0x99e41531U, 0x3f1ad944U,
++ 0xc8138825U, 0xc28949a6U, 0xfaf8876bU,
++ 0x9f042196U, 0x68b1d623U, 0x8b5114fdU,
++ 0xdf074c46U, 0x12cc86b3U, 0x0a52098fU,
++ 0x9d292f9aU, 0xa2f41f12U, 0x43a71ed0U,
++ 0x73f0bce6U, 0x70a7e980U, 0x243c6d75U,
++ 0xfdb71513U, 0xa67d8a08U, 0xb7e8f148U,
++ 0xf7a644eeU, 0x0f1837f2U, 0x4b6694e0U,
++ 0xb7bbb3a8U
++};
++#else
++static const hsiphash_key_t test_key_hsiphash =
++ {{ 0x03020100U, 0x07060504U }};
++
++static const u32 test_vectors_hsiphash[64] = {
++ 0x5814c896U, 0xe7e864caU, 0xbc4b0e30U,
++ 0x01539939U, 0x7e059ea6U, 0x88e3d89bU,
++ 0xa0080b65U, 0x9d38d9d6U, 0x577999b1U,
++ 0xc839caedU, 0xe4fa32cfU, 0x959246eeU,
++ 0x6b28096cU, 0x66dd9cd6U, 0x16658a7cU,
++ 0xd0257b04U, 0x8b31d501U, 0x2b1cd04bU,
++ 0x06712339U, 0x522aca67U, 0x911bb605U,
++ 0x90a65f0eU, 0xf826ef7bU, 0x62512debU,
++ 0x57150ad7U, 0x5d473507U, 0x1ec47442U,
++ 0xab64afd3U, 0x0a4100d0U, 0x6d2ce652U,
++ 0x2331b6a3U, 0x08d8791aU, 0xbc6dda8dU,
++ 0xe0f6c934U, 0xb0652033U, 0x9b9851ccU,
++ 0x7c46fb7fU, 0x732ba8cbU, 0xf142997aU,
++ 0xfcc9aa1bU, 0x05327eb2U, 0xe110131cU,
++ 0xf9e5e7c0U, 0xa7d708a6U, 0x11795ab1U,
++ 0x65671619U, 0x9f5fff91U, 0xd89c5267U,
++ 0x007783ebU, 0x95766243U, 0xab639262U,
++ 0x9c7e1390U, 0xc368dda6U, 0x38ddc455U,
++ 0xfa13d379U, 0x979ea4e8U, 0x53ecd77eU,
++ 0x2ee80657U, 0x33dbb66aU, 0xae3f0577U,
++ 0x88b4c4ccU, 0x3e7f480bU, 0x74c1ebf8U,
++ 0x87178304U
++};
++#endif
++
++static int __init siphash_test_init(void)
++{
++ u8 in[64] __aligned(SIPHASH_ALIGNMENT);
++ u8 in_unaligned[65] __aligned(SIPHASH_ALIGNMENT);
++ u8 i;
++ int ret = 0;
++
++ for (i = 0; i < 64; ++i) {
++ in[i] = i;
++ in_unaligned[i + 1] = i;
++ if (siphash(in, i, &test_key_siphash) !=
++ test_vectors_siphash[i]) {
++ pr_info("siphash self-test aligned %u: FAIL\n", i + 1);
++ ret = -EINVAL;
++ }
++ if (siphash(in_unaligned + 1, i, &test_key_siphash) !=
++ test_vectors_siphash[i]) {
++ pr_info("siphash self-test unaligned %u: FAIL\n", i + 1);
++ ret = -EINVAL;
++ }
++ if (hsiphash(in, i, &test_key_hsiphash) !=
++ test_vectors_hsiphash[i]) {
++ pr_info("hsiphash self-test aligned %u: FAIL\n", i + 1);
++ ret = -EINVAL;
++ }
++ if (hsiphash(in_unaligned + 1, i, &test_key_hsiphash) !=
++ test_vectors_hsiphash[i]) {
++ pr_info("hsiphash self-test unaligned %u: FAIL\n", i + 1);
++ ret = -EINVAL;
++ }
++ }
++ if (siphash_1u64(0x0706050403020100ULL, &test_key_siphash) !=
++ test_vectors_siphash[8]) {
++ pr_info("siphash self-test 1u64: FAIL\n");
++ ret = -EINVAL;
++ }
++ if (siphash_2u64(0x0706050403020100ULL, 0x0f0e0d0c0b0a0908ULL,
++ &test_key_siphash) != test_vectors_siphash[16]) {
++ pr_info("siphash self-test 2u64: FAIL\n");
++ ret = -EINVAL;
++ }
++ if (siphash_3u64(0x0706050403020100ULL, 0x0f0e0d0c0b0a0908ULL,
++ 0x1716151413121110ULL, &test_key_siphash) !=
++ test_vectors_siphash[24]) {
++ pr_info("siphash self-test 3u64: FAIL\n");
++ ret = -EINVAL;
++ }
++ if (siphash_4u64(0x0706050403020100ULL, 0x0f0e0d0c0b0a0908ULL,
++ 0x1716151413121110ULL, 0x1f1e1d1c1b1a1918ULL,
++ &test_key_siphash) != test_vectors_siphash[32]) {
++ pr_info("siphash self-test 4u64: FAIL\n");
++ ret = -EINVAL;
++ }
++ if (siphash_1u32(0x03020100U, &test_key_siphash) !=
++ test_vectors_siphash[4]) {
++ pr_info("siphash self-test 1u32: FAIL\n");
++ ret = -EINVAL;
++ }
++ if (siphash_2u32(0x03020100U, 0x07060504U, &test_key_siphash) !=
++ test_vectors_siphash[8]) {
++ pr_info("siphash self-test 2u32: FAIL\n");
++ ret = -EINVAL;
++ }
++ if (siphash_3u32(0x03020100U, 0x07060504U,
++ 0x0b0a0908U, &test_key_siphash) !=
++ test_vectors_siphash[12]) {
++ pr_info("siphash self-test 3u32: FAIL\n");
++ ret = -EINVAL;
++ }
++ if (siphash_4u32(0x03020100U, 0x07060504U,
++ 0x0b0a0908U, 0x0f0e0d0cU, &test_key_siphash) !=
++ test_vectors_siphash[16]) {
++ pr_info("siphash self-test 4u32: FAIL\n");
++ ret = -EINVAL;
++ }
++ if (hsiphash_1u32(0x03020100U, &test_key_hsiphash) !=
++ test_vectors_hsiphash[4]) {
++ pr_info("hsiphash self-test 1u32: FAIL\n");
++ ret = -EINVAL;
++ }
++ if (hsiphash_2u32(0x03020100U, 0x07060504U, &test_key_hsiphash) !=
++ test_vectors_hsiphash[8]) {
++ pr_info("hsiphash self-test 2u32: FAIL\n");
++ ret = -EINVAL;
++ }
++ if (hsiphash_3u32(0x03020100U, 0x07060504U,
++ 0x0b0a0908U, &test_key_hsiphash) !=
++ test_vectors_hsiphash[12]) {
++ pr_info("hsiphash self-test 3u32: FAIL\n");
++ ret = -EINVAL;
++ }
++ if (hsiphash_4u32(0x03020100U, 0x07060504U,
++ 0x0b0a0908U, 0x0f0e0d0cU, &test_key_hsiphash) !=
++ test_vectors_hsiphash[16]) {
++ pr_info("hsiphash self-test 4u32: FAIL\n");
++ ret = -EINVAL;
++ }
++ if (!ret)
++ pr_info("self-tests: pass\n");
++ return ret;
++}
++
++static void __exit siphash_test_exit(void)
++{
++}
++
++module_init(siphash_test_init);
++module_exit(siphash_test_exit);
++
++MODULE_AUTHOR("Jason A. Donenfeld <Jason@zx2c4.com>");
++MODULE_LICENSE("Dual BSD/GPL");
+diff --git a/mm/memcontrol.c b/mm/memcontrol.c
+index 86a6b331b964..cbcbba028c2d 100644
+--- a/mm/memcontrol.c
++++ b/mm/memcontrol.c
+@@ -887,26 +887,45 @@ void mem_cgroup_iter_break(struct mem_cgroup *root,
+ css_put(&prev->css);
+ }
+
+-static void invalidate_reclaim_iterators(struct mem_cgroup *dead_memcg)
++static void __invalidate_reclaim_iterators(struct mem_cgroup *from,
++ struct mem_cgroup *dead_memcg)
+ {
+- struct mem_cgroup *memcg = dead_memcg;
+ struct mem_cgroup_reclaim_iter *iter;
+ struct mem_cgroup_per_node *mz;
+ int nid;
+ int i;
+
+- for (; memcg; memcg = parent_mem_cgroup(memcg)) {
+- for_each_node(nid) {
+- mz = mem_cgroup_nodeinfo(memcg, nid);
+- for (i = 0; i <= DEF_PRIORITY; i++) {
+- iter = &mz->iter[i];
+- cmpxchg(&iter->position,
+- dead_memcg, NULL);
+- }
++ for_each_node(nid) {
++ mz = mem_cgroup_nodeinfo(from, nid);
++ for (i = 0; i <= DEF_PRIORITY; i++) {
++ iter = &mz->iter[i];
++ cmpxchg(&iter->position,
++ dead_memcg, NULL);
+ }
+ }
+ }
+
++static void invalidate_reclaim_iterators(struct mem_cgroup *dead_memcg)
++{
++ struct mem_cgroup *memcg = dead_memcg;
++ struct mem_cgroup *last;
++
++ do {
++ __invalidate_reclaim_iterators(memcg, dead_memcg);
++ last = memcg;
++ } while ((memcg = parent_mem_cgroup(memcg)));
++
++ /*
++ * When cgruop1 non-hierarchy mode is used,
++ * parent_mem_cgroup() does not walk all the way up to the
++ * cgroup root (root_mem_cgroup). So we have to handle
++ * dead_memcg from cgroup root separately.
++ */
++ if (last != root_mem_cgroup)
++ __invalidate_reclaim_iterators(root_mem_cgroup,
++ dead_memcg);
++}
++
+ /*
+ * Iteration constructs for visiting all cgroups (under a tree). If
+ * loops are exited prematurely (break), mem_cgroup_iter_break() must
+diff --git a/mm/usercopy.c b/mm/usercopy.c
+index 3c8da0af9695..7683c22551ff 100644
+--- a/mm/usercopy.c
++++ b/mm/usercopy.c
+@@ -124,7 +124,7 @@ static inline const char *check_kernel_text_object(const void *ptr,
+ static inline const char *check_bogus_address(const void *ptr, unsigned long n)
+ {
+ /* Reject if object wraps past end of memory. */
+- if ((unsigned long)ptr + n < (unsigned long)ptr)
++ if ((unsigned long)ptr + (n - 1) < (unsigned long)ptr)
+ return "<wrapped address>";
+
+ /* Reject if NULL or ZERO-allocation. */
+diff --git a/mm/vmalloc.c b/mm/vmalloc.c
+index 73afe460caf0..dd66f1fb3fcf 100644
+--- a/mm/vmalloc.c
++++ b/mm/vmalloc.c
+@@ -1707,6 +1707,12 @@ void *__vmalloc_node_range(unsigned long size, unsigned long align,
+ if (!addr)
+ return NULL;
+
++ /*
++ * First make sure the mappings are removed from all page-tables
++ * before they are freed.
++ */
++ vmalloc_sync_all();
++
+ /*
+ * In this function, newly allocated vm_struct has VM_UNINITIALIZED
+ * flag. It means that vm_struct is not fully initialized.
+@@ -2243,6 +2249,9 @@ EXPORT_SYMBOL(remap_vmalloc_range);
+ /*
+ * Implement a stub for vmalloc_sync_all() if the architecture chose not to
+ * have one.
++ *
++ * The purpose of this function is to make sure the vmalloc area
++ * mappings are identical in all page-tables in the system.
+ */
+ void __weak vmalloc_sync_all(void)
+ {
+diff --git a/net/core/sysctl_net_core.c b/net/core/sysctl_net_core.c
+index 546ba76b35a5..a6fc82704f0c 100644
+--- a/net/core/sysctl_net_core.c
++++ b/net/core/sysctl_net_core.c
+@@ -24,9 +24,12 @@
+
+ static int zero = 0;
+ static int one = 1;
++static int two __maybe_unused = 2;
+ static int min_sndbuf = SOCK_MIN_SNDBUF;
+ static int min_rcvbuf = SOCK_MIN_RCVBUF;
+ static int max_skb_frags = MAX_SKB_FRAGS;
++static long long_one __maybe_unused = 1;
++static long long_max __maybe_unused = LONG_MAX;
+
+ static int net_msg_warn; /* Unused, but still a sysctl */
+
+@@ -231,6 +234,50 @@ static int proc_do_rss_key(struct ctl_table *table, int write,
+ return proc_dostring(&fake_table, write, buffer, lenp, ppos);
+ }
+
++#ifdef CONFIG_BPF_JIT
++static int proc_dointvec_minmax_bpf_enable(struct ctl_table *table, int write,
++ void __user *buffer, size_t *lenp,
++ loff_t *ppos)
++{
++ int ret, jit_enable = *(int *)table->data;
++ struct ctl_table tmp = *table;
++
++ if (write && !capable(CAP_SYS_ADMIN))
++ return -EPERM;
++
++ tmp.data = &jit_enable;
++ ret = proc_dointvec_minmax(&tmp, write, buffer, lenp, ppos);
++ if (write && !ret) {
++ *(int *)table->data = jit_enable;
++ if (jit_enable == 2)
++ pr_warn("bpf_jit_enable = 2 was set! NEVER use this in production, only for JIT debugging!\n");
++ }
++ return ret;
++}
++
++static int
++proc_dointvec_minmax_bpf_restricted(struct ctl_table *table, int write,
++ void __user *buffer, size_t *lenp,
++ loff_t *ppos)
++{
++ if (!capable(CAP_SYS_ADMIN))
++ return -EPERM;
++
++ return proc_dointvec_minmax(table, write, buffer, lenp, ppos);
++}
++
++static int
++proc_dolongvec_minmax_bpf_restricted(struct ctl_table *table, int write,
++ void __user *buffer, size_t *lenp,
++ loff_t *ppos)
++{
++ if (!capable(CAP_SYS_ADMIN))
++ return -EPERM;
++
++ return proc_doulongvec_minmax(table, write, buffer, lenp, ppos);
++}
++#endif
++
+ static struct ctl_table net_core_table[] = {
+ #ifdef CONFIG_NET
+ {
+@@ -292,13 +339,14 @@ static struct ctl_table net_core_table[] = {
+ .data = &bpf_jit_enable,
+ .maxlen = sizeof(int),
+ .mode = 0644,
+-#ifndef CONFIG_BPF_JIT_ALWAYS_ON
+- .proc_handler = proc_dointvec
+-#else
+- .proc_handler = proc_dointvec_minmax,
++ .proc_handler = proc_dointvec_minmax_bpf_enable,
++# ifdef CONFIG_BPF_JIT_ALWAYS_ON
+ .extra1 = &one,
+ .extra2 = &one,
+-#endif
++# else
++ .extra1 = &zero,
++ .extra2 = &two,
++# endif
+ },
+ # ifdef CONFIG_HAVE_EBPF_JIT
+ {
+@@ -306,9 +354,20 @@ static struct ctl_table net_core_table[] = {
+ .data = &bpf_jit_harden,
+ .maxlen = sizeof(int),
+ .mode = 0600,
+- .proc_handler = proc_dointvec,
++ .proc_handler = proc_dointvec_minmax_bpf_restricted,
++ .extra1 = &zero,
++ .extra2 = &two,
+ },
+ # endif
++ {
++ .procname = "bpf_jit_limit",
++ .data = &bpf_jit_limit,
++ .maxlen = sizeof(long),
++ .mode = 0600,
++ .proc_handler = proc_dolongvec_minmax_bpf_restricted,
++ .extra1 = &long_one,
++ .extra2 = &long_max,
++ },
+ #endif
+ {
+ .procname = "netdev_tstamp_prequeue",
+diff --git a/net/ipv4/route.c b/net/ipv4/route.c
+index 02c49857b5a7..d558dc076577 100644
+--- a/net/ipv4/route.c
++++ b/net/ipv4/route.c
+@@ -496,15 +496,17 @@ EXPORT_SYMBOL(ip_idents_reserve);
+
+ void __ip_select_ident(struct net *net, struct iphdr *iph, int segs)
+ {
+- static u32 ip_idents_hashrnd __read_mostly;
+ u32 hash, id;
+
+- net_get_random_once(&ip_idents_hashrnd, sizeof(ip_idents_hashrnd));
++ /* Note the following code is not safe, but this is okay. */
++ if (unlikely(siphash_key_is_zero(&net->ipv4.ip_id_key)))
++ get_random_bytes(&net->ipv4.ip_id_key,
++ sizeof(net->ipv4.ip_id_key));
+
+- hash = jhash_3words((__force u32)iph->daddr,
++ hash = siphash_3u32((__force u32)iph->daddr,
+ (__force u32)iph->saddr,
+- iph->protocol ^ net_hash_mix(net),
+- ip_idents_hashrnd);
++ iph->protocol,
++ &net->ipv4.ip_id_key);
+ id = ip_idents_reserve(hash, segs);
+ iph->id = htons(id);
+ }
+diff --git a/net/ipv6/output_core.c b/net/ipv6/output_core.c
+index a338bbc33cf3..6a6d01cb1ace 100644
+--- a/net/ipv6/output_core.c
++++ b/net/ipv6/output_core.c
+@@ -10,15 +10,25 @@
+ #include <net/secure_seq.h>
+ #include <linux/netfilter.h>
+
+-static u32 __ipv6_select_ident(struct net *net, u32 hashrnd,
++static u32 __ipv6_select_ident(struct net *net,
+ const struct in6_addr *dst,
+ const struct in6_addr *src)
+ {
++ const struct {
++ struct in6_addr dst;
++ struct in6_addr src;
++ } __aligned(SIPHASH_ALIGNMENT) combined = {
++ .dst = *dst,
++ .src = *src,
++ };
+ u32 hash, id;
+
+- hash = __ipv6_addr_jhash(dst, hashrnd);
+- hash = __ipv6_addr_jhash(src, hash);
+- hash ^= net_hash_mix(net);
++ /* Note the following code is not safe, but this is okay. */
++ if (unlikely(siphash_key_is_zero(&net->ipv4.ip_id_key)))
++ get_random_bytes(&net->ipv4.ip_id_key,
++ sizeof(net->ipv4.ip_id_key));
++
++ hash = siphash(&combined, sizeof(combined), &net->ipv4.ip_id_key);
+
+ /* Treat id of 0 as unset and if we get 0 back from ip_idents_reserve,
+ * set the hight order instead thus minimizing possible future
+@@ -41,7 +51,6 @@ static u32 __ipv6_select_ident(struct net *net, u32 hashrnd,
+ */
+ void ipv6_proxy_select_ident(struct net *net, struct sk_buff *skb)
+ {
+- static u32 ip6_proxy_idents_hashrnd __read_mostly;
+ struct in6_addr buf[2];
+ struct in6_addr *addrs;
+ u32 id;
+@@ -53,11 +62,7 @@ void ipv6_proxy_select_ident(struct net *net, struct sk_buff *skb)
+ if (!addrs)
+ return;
+
+- net_get_random_once(&ip6_proxy_idents_hashrnd,
+- sizeof(ip6_proxy_idents_hashrnd));
+-
+- id = __ipv6_select_ident(net, ip6_proxy_idents_hashrnd,
+- &addrs[1], &addrs[0]);
++ id = __ipv6_select_ident(net, &addrs[1], &addrs[0]);
+ skb_shinfo(skb)->ip6_frag_id = htonl(id);
+ }
+ EXPORT_SYMBOL_GPL(ipv6_proxy_select_ident);
+@@ -66,12 +71,9 @@ __be32 ipv6_select_ident(struct net *net,
+ const struct in6_addr *daddr,
+ const struct in6_addr *saddr)
+ {
+- static u32 ip6_idents_hashrnd __read_mostly;
+ u32 id;
+
+- net_get_random_once(&ip6_idents_hashrnd, sizeof(ip6_idents_hashrnd));
+-
+- id = __ipv6_select_ident(net, ip6_idents_hashrnd, daddr, saddr);
++ id = __ipv6_select_ident(net, daddr, saddr);
+ return htonl(id);
+ }
+ EXPORT_SYMBOL(ipv6_select_ident);
+diff --git a/net/mac80211/driver-ops.c b/net/mac80211/driver-ops.c
+index bb886e7db47f..f783d1377d9a 100644
+--- a/net/mac80211/driver-ops.c
++++ b/net/mac80211/driver-ops.c
+@@ -169,11 +169,16 @@ int drv_conf_tx(struct ieee80211_local *local,
+ if (!check_sdata_in_driver(sdata))
+ return -EIO;
+
+- if (WARN_ONCE(params->cw_min == 0 ||
+- params->cw_min > params->cw_max,
+- "%s: invalid CW_min/CW_max: %d/%d\n",
+- sdata->name, params->cw_min, params->cw_max))
++ if (params->cw_min == 0 || params->cw_min > params->cw_max) {
++ /*
++ * If we can't configure hardware anyway, don't warn. We may
++ * never have initialized the CW parameters.
++ */
++ WARN_ONCE(local->ops->conf_tx,
++ "%s: invalid CW_min/CW_max: %d/%d\n",
++ sdata->name, params->cw_min, params->cw_max);
+ return -EINVAL;
++ }
+
+ trace_drv_conf_tx(local, sdata, ac, params);
+ if (local->ops->conf_tx)
+diff --git a/net/mac80211/mlme.c b/net/mac80211/mlme.c
+index d787717140e5..f462f026fc6a 100644
+--- a/net/mac80211/mlme.c
++++ b/net/mac80211/mlme.c
+@@ -1873,6 +1873,16 @@ static bool ieee80211_sta_wmm_params(struct ieee80211_local *local,
+ }
+ }
+
++ /* WMM specification requires all 4 ACIs. */
++ for (ac = 0; ac < IEEE80211_NUM_ACS; ac++) {
++ if (params[ac].cw_min == 0) {
++ sdata_info(sdata,
++ "AP has invalid WMM params (missing AC %d), using defaults\n",
++ ac);
++ return false;
++ }
++ }
++
+ for (ac = 0; ac < IEEE80211_NUM_ACS; ac++) {
+ mlme_dbg(sdata,
+ "WMM AC=%d acm=%d aifs=%d cWmin=%d cWmax=%d txop=%d uapsd=%d, downgraded=%d\n",
+diff --git a/net/netfilter/nf_conntrack_core.c b/net/netfilter/nf_conntrack_core.c
+index df1d5618b008..1bdae8f188e1 100644
+--- a/net/netfilter/nf_conntrack_core.c
++++ b/net/netfilter/nf_conntrack_core.c
+@@ -25,6 +25,7 @@
+ #include <linux/slab.h>
+ #include <linux/random.h>
+ #include <linux/jhash.h>
++#include <linux/siphash.h>
+ #include <linux/err.h>
+ #include <linux/percpu.h>
+ #include <linux/moduleparam.h>
+@@ -301,6 +302,40 @@ nf_ct_invert_tuple(struct nf_conntrack_tuple *inverse,
+ }
+ EXPORT_SYMBOL_GPL(nf_ct_invert_tuple);
+
++/* Generate a almost-unique pseudo-id for a given conntrack.
++ *
++ * intentionally doesn't re-use any of the seeds used for hash
++ * table location, we assume id gets exposed to userspace.
++ *
++ * Following nf_conn items do not change throughout lifetime
++ * of the nf_conn:
++ *
++ * 1. nf_conn address
++ * 2. nf_conn->master address (normally NULL)
++ * 3. the associated net namespace
++ * 4. the original direction tuple
++ */
++u32 nf_ct_get_id(const struct nf_conn *ct)
++{
++ static __read_mostly siphash_key_t ct_id_seed;
++ unsigned long a, b, c, d;
++
++ net_get_random_once(&ct_id_seed, sizeof(ct_id_seed));
++
++ a = (unsigned long)ct;
++ b = (unsigned long)ct->master;
++ c = (unsigned long)nf_ct_net(ct);
++ d = (unsigned long)siphash(&ct->tuplehash[IP_CT_DIR_ORIGINAL].tuple,
++ sizeof(ct->tuplehash[IP_CT_DIR_ORIGINAL].tuple),
++ &ct_id_seed);
++#ifdef CONFIG_64BIT
++ return siphash_4u64((u64)a, (u64)b, (u64)c, (u64)d, &ct_id_seed);
++#else
++ return siphash_4u32((u32)a, (u32)b, (u32)c, (u32)d, &ct_id_seed);
++#endif
++}
++EXPORT_SYMBOL_GPL(nf_ct_get_id);
++
+ static void
+ clean_from_lists(struct nf_conn *ct)
+ {
+diff --git a/net/netfilter/nf_conntrack_netlink.c b/net/netfilter/nf_conntrack_netlink.c
+index 9e30fd0ab227..deea281ab169 100644
+--- a/net/netfilter/nf_conntrack_netlink.c
++++ b/net/netfilter/nf_conntrack_netlink.c
+@@ -29,6 +29,7 @@
+ #include <linux/spinlock.h>
+ #include <linux/interrupt.h>
+ #include <linux/slab.h>
++#include <linux/siphash.h>
+
+ #include <linux/netfilter.h>
+ #include <net/netlink.h>
+@@ -441,7 +442,9 @@ static int ctnetlink_dump_ct_seq_adj(struct sk_buff *skb,
+
+ static int ctnetlink_dump_id(struct sk_buff *skb, const struct nf_conn *ct)
+ {
+- if (nla_put_be32(skb, CTA_ID, htonl((unsigned long)ct)))
++ __be32 id = (__force __be32)nf_ct_get_id(ct);
++
++ if (nla_put_be32(skb, CTA_ID, id))
+ goto nla_put_failure;
+ return 0;
+
+@@ -1166,8 +1169,9 @@ static int ctnetlink_del_conntrack(struct net *net, struct sock *ctnl,
+ ct = nf_ct_tuplehash_to_ctrack(h);
+
+ if (cda[CTA_ID]) {
+- u_int32_t id = ntohl(nla_get_be32(cda[CTA_ID]));
+- if (id != (u32)(unsigned long)ct) {
++ __be32 id = nla_get_be32(cda[CTA_ID]);
++
++ if (id != (__force __be32)nf_ct_get_id(ct)) {
+ nf_ct_put(ct);
+ return -ENOENT;
+ }
+@@ -2472,6 +2476,25 @@ nla_put_failure:
+
+ static const union nf_inet_addr any_addr;
+
++static __be32 nf_expect_get_id(const struct nf_conntrack_expect *exp)
++{
++ static __read_mostly siphash_key_t exp_id_seed;
++ unsigned long a, b, c, d;
++
++ net_get_random_once(&exp_id_seed, sizeof(exp_id_seed));
++
++ a = (unsigned long)exp;
++ b = (unsigned long)exp->helper;
++ c = (unsigned long)exp->master;
++ d = (unsigned long)siphash(&exp->tuple, sizeof(exp->tuple), &exp_id_seed);
++
++#ifdef CONFIG_64BIT
++ return (__force __be32)siphash_4u64((u64)a, (u64)b, (u64)c, (u64)d, &exp_id_seed);
++#else
++ return (__force __be32)siphash_4u32((u32)a, (u32)b, (u32)c, (u32)d, &exp_id_seed);
++#endif
++}
++
+ static int
+ ctnetlink_exp_dump_expect(struct sk_buff *skb,
+ const struct nf_conntrack_expect *exp)
+@@ -2519,7 +2542,7 @@ ctnetlink_exp_dump_expect(struct sk_buff *skb,
+ }
+ #endif
+ if (nla_put_be32(skb, CTA_EXPECT_TIMEOUT, htonl(timeout)) ||
+- nla_put_be32(skb, CTA_EXPECT_ID, htonl((unsigned long)exp)) ||
++ nla_put_be32(skb, CTA_EXPECT_ID, nf_expect_get_id(exp)) ||
+ nla_put_be32(skb, CTA_EXPECT_FLAGS, htonl(exp->flags)) ||
+ nla_put_be32(skb, CTA_EXPECT_CLASS, htonl(exp->class)))
+ goto nla_put_failure;
+@@ -2818,7 +2841,8 @@ static int ctnetlink_get_expect(struct net *net, struct sock *ctnl,
+
+ if (cda[CTA_EXPECT_ID]) {
+ __be32 id = nla_get_be32(cda[CTA_EXPECT_ID]);
+- if (ntohl(id) != (u32)(unsigned long)exp) {
++
++ if (id != nf_expect_get_id(exp)) {
+ nf_ct_expect_put(exp);
+ return -ENOENT;
+ }
+diff --git a/net/netfilter/nfnetlink.c b/net/netfilter/nfnetlink.c
+index 2278d9ab723b..9837a61cb3e3 100644
+--- a/net/netfilter/nfnetlink.c
++++ b/net/netfilter/nfnetlink.c
+@@ -490,7 +490,7 @@ static int nfnetlink_bind(struct net *net, int group)
+ ss = nfnetlink_get_subsys(type << 8);
+ rcu_read_unlock();
+ if (!ss)
+- request_module("nfnetlink-subsys-%d", type);
++ request_module_nowait("nfnetlink-subsys-%d", type);
+ return 0;
+ }
+ #endif
+diff --git a/net/packet/af_packet.c b/net/packet/af_packet.c
+index 3578121da79c..b1dbea544d64 100644
+--- a/net/packet/af_packet.c
++++ b/net/packet/af_packet.c
+@@ -2651,6 +2651,13 @@ static int tpacket_snd(struct packet_sock *po, struct msghdr *msg)
+
+ mutex_lock(&po->pg_vec_lock);
+
++ /* packet_sendmsg() check on tx_ring.pg_vec was lockless,
++ * we need to confirm it under protection of pg_vec_lock.
++ */
++ if (unlikely(!po->tx_ring.pg_vec)) {
++ err = -EBUSY;
++ goto out;
++ }
+ if (likely(saddr == NULL)) {
+ dev = packet_cached_dev_get(po);
+ proto = po->num;
+diff --git a/net/sctp/sm_sideeffect.c b/net/sctp/sm_sideeffect.c
+index c345bf153bed..b1ead1776e81 100644
+--- a/net/sctp/sm_sideeffect.c
++++ b/net/sctp/sm_sideeffect.c
+@@ -508,7 +508,7 @@ static void sctp_do_8_2_transport_strike(sctp_cmd_seq_t *commands,
+ */
+ if (net->sctp.pf_enable &&
+ (transport->state == SCTP_ACTIVE) &&
+- (asoc->pf_retrans < transport->pathmaxrxt) &&
++ (transport->error_count < transport->pathmaxrxt) &&
+ (transport->error_count > asoc->pf_retrans)) {
+
+ sctp_assoc_control_transport(asoc, transport,
+diff --git a/net/socket.c b/net/socket.c
+index d9e2989c10c4..bf99bc1fab2c 100644
+--- a/net/socket.c
++++ b/net/socket.c
+@@ -2550,15 +2550,6 @@ out_fs:
+
+ core_initcall(sock_init); /* early initcall */
+
+-static int __init jit_init(void)
+-{
+-#ifdef CONFIG_BPF_JIT_ALWAYS_ON
+- bpf_jit_enable = 1;
+-#endif
+- return 0;
+-}
+-pure_initcall(jit_init);
+-
+ #ifdef CONFIG_PROC_FS
+ void socket_seq_show(struct seq_file *seq)
+ {
+diff --git a/scripts/Makefile.modpost b/scripts/Makefile.modpost
+index 16923ba4b5b1..8cb7971b3f25 100644
+--- a/scripts/Makefile.modpost
++++ b/scripts/Makefile.modpost
+@@ -74,7 +74,7 @@ modpost = scripts/mod/modpost \
+ $(if $(CONFIG_MODULE_SRCVERSION_ALL),-a,) \
+ $(if $(KBUILD_EXTMOD),-i,-o) $(kernelsymfile) \
+ $(if $(KBUILD_EXTMOD),-I $(modulesymfile)) \
+- $(if $(KBUILD_EXTRA_SYMBOLS), $(patsubst %, -e %,$(KBUILD_EXTRA_SYMBOLS))) \
++ $(if $(KBUILD_EXTMOD),$(addprefix -e ,$(KBUILD_EXTRA_SYMBOLS))) \
+ $(if $(KBUILD_EXTMOD),-o $(modulesymfile)) \
+ $(if $(CONFIG_DEBUG_SECTION_MISMATCH),,-S) \
+ $(if $(CONFIG_SECTION_MISMATCH_WARN_ONLY),,-E) \
+diff --git a/sound/core/compress_offload.c b/sound/core/compress_offload.c
+index 555df64d46ff..2e2d18468491 100644
+--- a/sound/core/compress_offload.c
++++ b/sound/core/compress_offload.c
+@@ -575,10 +575,7 @@ snd_compr_set_params(struct snd_compr_stream *stream, unsigned long arg)
+ stream->metadata_set = false;
+ stream->next_track = false;
+
+- if (stream->direction == SND_COMPRESS_PLAYBACK)
+- stream->runtime->state = SNDRV_PCM_STATE_SETUP;
+- else
+- stream->runtime->state = SNDRV_PCM_STATE_PREPARED;
++ stream->runtime->state = SNDRV_PCM_STATE_SETUP;
+ } else {
+ return -EPERM;
+ }
+@@ -694,8 +691,17 @@ static int snd_compr_start(struct snd_compr_stream *stream)
+ {
+ int retval;
+
+- if (stream->runtime->state != SNDRV_PCM_STATE_PREPARED)
++ switch (stream->runtime->state) {
++ case SNDRV_PCM_STATE_SETUP:
++ if (stream->direction != SND_COMPRESS_CAPTURE)
++ return -EPERM;
++ break;
++ case SNDRV_PCM_STATE_PREPARED:
++ break;
++ default:
+ return -EPERM;
++ }
++
+ retval = stream->ops->trigger(stream, SNDRV_PCM_TRIGGER_START);
+ if (!retval)
+ stream->runtime->state = SNDRV_PCM_STATE_RUNNING;
+@@ -706,9 +712,15 @@ static int snd_compr_stop(struct snd_compr_stream *stream)
+ {
+ int retval;
+
+- if (stream->runtime->state == SNDRV_PCM_STATE_PREPARED ||
+- stream->runtime->state == SNDRV_PCM_STATE_SETUP)
++ switch (stream->runtime->state) {
++ case SNDRV_PCM_STATE_OPEN:
++ case SNDRV_PCM_STATE_SETUP:
++ case SNDRV_PCM_STATE_PREPARED:
+ return -EPERM;
++ default:
++ break;
++ }
++
+ retval = stream->ops->trigger(stream, SNDRV_PCM_TRIGGER_STOP);
+ if (!retval) {
+ snd_compr_drain_notify(stream);
+@@ -796,9 +808,17 @@ static int snd_compr_drain(struct snd_compr_stream *stream)
+ {
+ int retval;
+
+- if (stream->runtime->state == SNDRV_PCM_STATE_PREPARED ||
+- stream->runtime->state == SNDRV_PCM_STATE_SETUP)
++ switch (stream->runtime->state) {
++ case SNDRV_PCM_STATE_OPEN:
++ case SNDRV_PCM_STATE_SETUP:
++ case SNDRV_PCM_STATE_PREPARED:
++ case SNDRV_PCM_STATE_PAUSED:
+ return -EPERM;
++ case SNDRV_PCM_STATE_XRUN:
++ return -EPIPE;
++ default:
++ break;
++ }
+
+ retval = stream->ops->trigger(stream, SND_COMPR_TRIGGER_DRAIN);
+ if (retval) {
+@@ -818,6 +838,10 @@ static int snd_compr_next_track(struct snd_compr_stream *stream)
+ if (stream->runtime->state != SNDRV_PCM_STATE_RUNNING)
+ return -EPERM;
+
++ /* next track doesn't have any meaning for capture streams */
++ if (stream->direction == SND_COMPRESS_CAPTURE)
++ return -EPERM;
++
+ /* you can signal next track if this is intended to be a gapless stream
+ * and current track metadata is set
+ */
+@@ -835,9 +859,23 @@ static int snd_compr_next_track(struct snd_compr_stream *stream)
+ static int snd_compr_partial_drain(struct snd_compr_stream *stream)
+ {
+ int retval;
+- if (stream->runtime->state == SNDRV_PCM_STATE_PREPARED ||
+- stream->runtime->state == SNDRV_PCM_STATE_SETUP)
++
++ switch (stream->runtime->state) {
++ case SNDRV_PCM_STATE_OPEN:
++ case SNDRV_PCM_STATE_SETUP:
++ case SNDRV_PCM_STATE_PREPARED:
++ case SNDRV_PCM_STATE_PAUSED:
++ return -EPERM;
++ case SNDRV_PCM_STATE_XRUN:
++ return -EPIPE;
++ default:
++ break;
++ }
++
++ /* partial drain doesn't have any meaning for capture streams */
++ if (stream->direction == SND_COMPRESS_CAPTURE)
+ return -EPERM;
++
+ /* stream can be drained only when next track has been signalled */
+ if (stream->next_track == false)
+ return -EPERM;
+diff --git a/sound/firewire/packets-buffer.c b/sound/firewire/packets-buffer.c
+index ea1506679c66..3b09b8ef3a09 100644
+--- a/sound/firewire/packets-buffer.c
++++ b/sound/firewire/packets-buffer.c
+@@ -37,7 +37,7 @@ int iso_packets_buffer_init(struct iso_packets_buffer *b, struct fw_unit *unit,
+ packets_per_page = PAGE_SIZE / packet_size;
+ if (WARN_ON(!packets_per_page)) {
+ err = -EINVAL;
+- goto error;
++ goto err_packets;
+ }
+ pages = DIV_ROUND_UP(count, packets_per_page);
+
+diff --git a/sound/pci/hda/hda_controller.c b/sound/pci/hda/hda_controller.c
+index 56af7308a2fd..85dbe2420248 100644
+--- a/sound/pci/hda/hda_controller.c
++++ b/sound/pci/hda/hda_controller.c
+@@ -609,11 +609,9 @@ static int azx_pcm_open(struct snd_pcm_substream *substream)
+ }
+ runtime->private_data = azx_dev;
+
+- if (chip->gts_present)
+- azx_pcm_hw.info = azx_pcm_hw.info |
+- SNDRV_PCM_INFO_HAS_LINK_SYNCHRONIZED_ATIME;
+-
+ runtime->hw = azx_pcm_hw;
++ if (chip->gts_present)
++ runtime->hw.info |= SNDRV_PCM_INFO_HAS_LINK_SYNCHRONIZED_ATIME;
+ runtime->hw.channels_min = hinfo->channels_min;
+ runtime->hw.channels_max = hinfo->channels_max;
+ runtime->hw.formats = hinfo->formats;
+diff --git a/sound/pci/hda/hda_generic.c b/sound/pci/hda/hda_generic.c
+index b0bd29003b5d..98594cbe34c8 100644
+--- a/sound/pci/hda/hda_generic.c
++++ b/sound/pci/hda/hda_generic.c
+@@ -5849,6 +5849,24 @@ void snd_hda_gen_free(struct hda_codec *codec)
+ }
+ EXPORT_SYMBOL_GPL(snd_hda_gen_free);
+
++/**
++ * snd_hda_gen_reboot_notify - Make codec enter D3 before rebooting
++ * @codec: the HDA codec
++ *
++ * This can be put as patch_ops reboot_notify function.
++ */
++void snd_hda_gen_reboot_notify(struct hda_codec *codec)
++{
++ /* Make the codec enter D3 to avoid spurious noises from the internal
++ * speaker during (and after) reboot
++ */
++ snd_hda_codec_set_power_to_all(codec, codec->core.afg, AC_PWRST_D3);
++ snd_hda_codec_write(codec, codec->core.afg, 0,
++ AC_VERB_SET_POWER_STATE, AC_PWRST_D3);
++ msleep(10);
++}
++EXPORT_SYMBOL_GPL(snd_hda_gen_reboot_notify);
++
+ #ifdef CONFIG_PM
+ /**
+ * snd_hda_gen_check_power_status - check the loopback power save state
+@@ -5876,6 +5894,7 @@ static const struct hda_codec_ops generic_patch_ops = {
+ .init = snd_hda_gen_init,
+ .free = snd_hda_gen_free,
+ .unsol_event = snd_hda_jack_unsol_event,
++ .reboot_notify = snd_hda_gen_reboot_notify,
+ #ifdef CONFIG_PM
+ .check_power_status = snd_hda_gen_check_power_status,
+ #endif
+@@ -5898,7 +5917,7 @@ static int snd_hda_parse_generic_codec(struct hda_codec *codec)
+
+ err = snd_hda_parse_pin_defcfg(codec, &spec->autocfg, NULL, 0);
+ if (err < 0)
+- return err;
++ goto error;
+
+ err = snd_hda_gen_parse_auto_config(codec, &spec->autocfg);
+ if (err < 0)
+diff --git a/sound/pci/hda/hda_generic.h b/sound/pci/hda/hda_generic.h
+index f66fc7e25e07..932b533feb48 100644
+--- a/sound/pci/hda/hda_generic.h
++++ b/sound/pci/hda/hda_generic.h
+@@ -322,6 +322,7 @@ int snd_hda_gen_parse_auto_config(struct hda_codec *codec,
+ struct auto_pin_cfg *cfg);
+ int snd_hda_gen_build_controls(struct hda_codec *codec);
+ int snd_hda_gen_build_pcms(struct hda_codec *codec);
++void snd_hda_gen_reboot_notify(struct hda_codec *codec);
+
+ /* standard jack event callbacks */
+ void snd_hda_gen_hp_automute(struct hda_codec *codec,
+diff --git a/sound/pci/hda/patch_conexant.c b/sound/pci/hda/patch_conexant.c
+index df66969b124d..8557b94e462c 100644
+--- a/sound/pci/hda/patch_conexant.c
++++ b/sound/pci/hda/patch_conexant.c
+@@ -204,23 +204,10 @@ static void cx_auto_reboot_notify(struct hda_codec *codec)
+ {
+ struct conexant_spec *spec = codec->spec;
+
+- switch (codec->core.vendor_id) {
+- case 0x14f12008: /* CX8200 */
+- case 0x14f150f2: /* CX20722 */
+- case 0x14f150f4: /* CX20724 */
+- break;
+- default:
+- return;
+- }
+-
+ /* Turn the problematic codec into D3 to avoid spurious noises
+ from the internal speaker during (and after) reboot */
+ cx_auto_turn_eapd(codec, spec->num_eapds, spec->eapds, false);
+-
+- snd_hda_codec_set_power_to_all(codec, codec->core.afg, AC_PWRST_D3);
+- snd_hda_codec_write(codec, codec->core.afg, 0,
+- AC_VERB_SET_POWER_STATE, AC_PWRST_D3);
+- msleep(10);
++ snd_hda_gen_reboot_notify(codec);
+ }
+
+ static void cx_auto_free(struct hda_codec *codec)
+diff --git a/sound/pci/hda/patch_realtek.c b/sound/pci/hda/patch_realtek.c
+index 04d2dc7097a1..8e995fb27312 100644
+--- a/sound/pci/hda/patch_realtek.c
++++ b/sound/pci/hda/patch_realtek.c
+@@ -802,15 +802,6 @@ static void alc_reboot_notify(struct hda_codec *codec)
+ alc_shutup(codec);
+ }
+
+-/* power down codec to D3 at reboot/shutdown; set as reboot_notify ops */
+-static void alc_d3_at_reboot(struct hda_codec *codec)
+-{
+- snd_hda_codec_set_power_to_all(codec, codec->core.afg, AC_PWRST_D3);
+- snd_hda_codec_write(codec, codec->core.afg, 0,
+- AC_VERB_SET_POWER_STATE, AC_PWRST_D3);
+- msleep(10);
+-}
+-
+ #define alc_free snd_hda_gen_free
+
+ #ifdef CONFIG_PM
+@@ -4473,7 +4464,7 @@ static void alc_fixup_tpt440_dock(struct hda_codec *codec,
+ struct alc_spec *spec = codec->spec;
+
+ if (action == HDA_FIXUP_ACT_PRE_PROBE) {
+- spec->reboot_notify = alc_d3_at_reboot; /* reduce noise */
++ spec->reboot_notify = snd_hda_gen_reboot_notify; /* reduce noise */
+ spec->parse_flags = HDA_PINCFG_NO_HP_FIXUP;
+ codec->power_save_node = 0; /* avoid click noises */
+ snd_hda_apply_pincfgs(codec, pincfgs);
+diff --git a/sound/sound_core.c b/sound/sound_core.c
+index 99b73c675743..20d4e2e1bacf 100644
+--- a/sound/sound_core.c
++++ b/sound/sound_core.c
+@@ -287,7 +287,8 @@ retry:
+ goto retry;
+ }
+ spin_unlock(&sound_loader_lock);
+- return -EBUSY;
++ r = -EBUSY;
++ goto fail;
+ }
+ }
+
+diff --git a/tools/perf/arch/s390/util/machine.c b/tools/perf/arch/s390/util/machine.c
+index d3d1452021d4..f4f8aff8a9bb 100644
+--- a/tools/perf/arch/s390/util/machine.c
++++ b/tools/perf/arch/s390/util/machine.c
+@@ -6,7 +6,7 @@
+ #include "api/fs/fs.h"
+ #include "debug.h"
+
+-int arch__fix_module_text_start(u64 *start, const char *name)
++int arch__fix_module_text_start(u64 *start, u64 *size, const char *name)
+ {
+ u64 m_start = *start;
+ char path[PATH_MAX];
+@@ -16,6 +16,18 @@ int arch__fix_module_text_start(u64 *start, const char *name)
+ if (sysfs__read_ull(path, (unsigned long long *)start) < 0) {
+ pr_debug2("Using module %s start:%#lx\n", path, m_start);
+ *start = m_start;
++ } else {
++ /* Successful read of the modules segment text start address.
++ * Calculate difference between module start address
++ * in memory and module text segment start address.
++ * For example module load address is 0x3ff8011b000
++ * (from /proc/modules) and module text segment start
++ * address is 0x3ff8011b870 (from file above).
++ *
++ * Adjust the module size and subtract the GOT table
++ * size located at the beginning of the module.
++ */
++ *size -= (*start - m_start);
+ }
+
+ return 0;
+diff --git a/tools/perf/builtin-probe.c b/tools/perf/builtin-probe.c
+index 9a250c71840e..2b420e7a92c0 100644
+--- a/tools/perf/builtin-probe.c
++++ b/tools/perf/builtin-probe.c
+@@ -675,6 +675,16 @@ __cmd_probe(int argc, const char **argv, const char *prefix __maybe_unused)
+
+ ret = perf_add_probe_events(params.events, params.nevents);
+ if (ret < 0) {
++
++ /*
++ * When perf_add_probe_events() fails it calls
++ * cleanup_perf_probe_events(pevs, npevs), i.e.
++ * cleanup_perf_probe_events(params.events, params.nevents), which
++ * will call clear_perf_probe_event(), so set nevents to zero
++ * to avoid cleanup_params() to call clear_perf_probe_event() again
++ * on the same pevs.
++ */
++ params.nevents = 0;
+ pr_err_with_code(" Error: Failed to add events.", ret);
+ return ret;
+ }
+diff --git a/tools/perf/util/header.c b/tools/perf/util/header.c
+index 283148104ffb..258b19b251a8 100644
+--- a/tools/perf/util/header.c
++++ b/tools/perf/util/header.c
+@@ -2854,6 +2854,13 @@ int perf_session__read_header(struct perf_session *session)
+ file->path);
+ }
+
++ if (f_header.attr_size == 0) {
++ pr_err("ERROR: The %s file's attr size field is 0 which is unexpected.\n"
++ "Was the 'perf record' command properly terminated?\n",
++ file->path);
++ return -EINVAL;
++ }
++
+ nr_attrs = f_header.attrs.size / f_header.attr_size;
+ lseek(fd, f_header.attrs.offset, SEEK_SET);
+
+@@ -2936,7 +2943,7 @@ int perf_event__synthesize_attr(struct perf_tool *tool,
+ size += sizeof(struct perf_event_header);
+ size += ids * sizeof(u64);
+
+- ev = malloc(size);
++ ev = zalloc(size);
+
+ if (ev == NULL)
+ return -ENOMEM;
+diff --git a/tools/perf/util/machine.c b/tools/perf/util/machine.c
+index df85b9efd80f..45ea7a8cd818 100644
+--- a/tools/perf/util/machine.c
++++ b/tools/perf/util/machine.c
+@@ -1074,22 +1074,25 @@ static int machine__set_modules_path(struct machine *machine)
+ return map_groups__set_modules_path_dir(&machine->kmaps, modules_path, 0);
+ }
+ int __weak arch__fix_module_text_start(u64 *start __maybe_unused,
++ u64 *size __maybe_unused,
+ const char *name __maybe_unused)
+ {
+ return 0;
+ }
+
+-static int machine__create_module(void *arg, const char *name, u64 start)
++static int machine__create_module(void *arg, const char *name, u64 start,
++ u64 size)
+ {
+ struct machine *machine = arg;
+ struct map *map;
+
+- if (arch__fix_module_text_start(&start, name) < 0)
++ if (arch__fix_module_text_start(&start, &size, name) < 0)
+ return -1;
+
+ map = machine__findnew_module_map(machine, start, name);
+ if (map == NULL)
+ return -1;
++ map->end = start + size;
+
+ dso__kernel_module_get_build_id(map->dso, machine->root_dir);
+
+diff --git a/tools/perf/util/machine.h b/tools/perf/util/machine.h
+index 354de6e56109..9b87b8b870ae 100644
+--- a/tools/perf/util/machine.h
++++ b/tools/perf/util/machine.h
+@@ -205,7 +205,7 @@ struct symbol *machine__find_kernel_function_by_name(struct machine *machine,
+
+ struct map *machine__findnew_module_map(struct machine *machine, u64 start,
+ const char *filename);
+-int arch__fix_module_text_start(u64 *start, const char *name);
++int arch__fix_module_text_start(u64 *start, u64 *size, const char *name);
+
+ int __machine__load_kallsyms(struct machine *machine, const char *filename,
+ enum map_type type, bool no_kcore);
+diff --git a/tools/perf/util/symbol-elf.c b/tools/perf/util/symbol-elf.c
+index 20ba5a9aeae4..5a50326c8158 100644
+--- a/tools/perf/util/symbol-elf.c
++++ b/tools/perf/util/symbol-elf.c
+@@ -1478,7 +1478,7 @@ static int kcore_copy__parse_kallsyms(struct kcore_copy_info *kci,
+
+ static int kcore_copy__process_modules(void *arg,
+ const char *name __maybe_unused,
+- u64 start)
++ u64 start, u64 size __maybe_unused)
+ {
+ struct kcore_copy_info *kci = arg;
+
+diff --git a/tools/perf/util/symbol.c b/tools/perf/util/symbol.c
+index f199d5b11d76..acde8e489352 100644
+--- a/tools/perf/util/symbol.c
++++ b/tools/perf/util/symbol.c
+@@ -217,7 +217,8 @@ void __map_groups__fixup_end(struct map_groups *mg, enum map_type type)
+ goto out_unlock;
+
+ for (next = map__next(curr); next; next = map__next(curr)) {
+- curr->end = next->start;
++ if (!curr->end)
++ curr->end = next->start;
+ curr = next;
+ }
+
+@@ -225,7 +226,8 @@ void __map_groups__fixup_end(struct map_groups *mg, enum map_type type)
+ * We still haven't the actual symbols, so guess the
+ * last map final address.
+ */
+- curr->end = ~0ULL;
++ if (!curr->end)
++ curr->end = ~0ULL;
+
+ out_unlock:
+ pthread_rwlock_unlock(&maps->lock);
+@@ -512,7 +514,7 @@ void dso__sort_by_name(struct dso *dso, enum map_type type)
+
+ int modules__parse(const char *filename, void *arg,
+ int (*process_module)(void *arg, const char *name,
+- u64 start))
++ u64 start, u64 size))
+ {
+ char *line = NULL;
+ size_t n;
+@@ -525,8 +527,8 @@ int modules__parse(const char *filename, void *arg,
+
+ while (1) {
+ char name[PATH_MAX];
+- u64 start;
+- char *sep;
++ u64 start, size;
++ char *sep, *endptr;
+ ssize_t line_len;
+
+ line_len = getline(&line, &n, file);
+@@ -558,7 +560,11 @@ int modules__parse(const char *filename, void *arg,
+
+ scnprintf(name, sizeof(name), "[%s]", line);
+
+- err = process_module(arg, name, start);
++ size = strtoul(sep + 1, &endptr, 0);
++ if (*endptr != ' ' && *endptr != '\t')
++ continue;
++
++ err = process_module(arg, name, start, size);
+ if (err)
+ break;
+ }
+@@ -905,7 +911,8 @@ static struct module_info *find_module(const char *name,
+ return NULL;
+ }
+
+-static int __read_proc_modules(void *arg, const char *name, u64 start)
++static int __read_proc_modules(void *arg, const char *name, u64 start,
++ u64 size __maybe_unused)
+ {
+ struct rb_root *modules = arg;
+ struct module_info *mi;
+diff --git a/tools/perf/util/symbol.h b/tools/perf/util/symbol.h
+index d964844eb314..833b1be2fb29 100644
+--- a/tools/perf/util/symbol.h
++++ b/tools/perf/util/symbol.h
+@@ -268,7 +268,7 @@ int filename__read_build_id(const char *filename, void *bf, size_t size);
+ int sysfs__read_build_id(const char *filename, void *bf, size_t size);
+ int modules__parse(const char *filename, void *arg,
+ int (*process_module)(void *arg, const char *name,
+- u64 start));
++ u64 start, u64 size));
+ int filename__read_debuglink(const char *filename, char *debuglink,
+ size_t size);
+
+diff --git a/tools/perf/util/thread.c b/tools/perf/util/thread.c
+index f5af87f66663..81aee5adc8a2 100644
+--- a/tools/perf/util/thread.c
++++ b/tools/perf/util/thread.c
+@@ -114,14 +114,24 @@ struct comm *thread__comm(const struct thread *thread)
+
+ struct comm *thread__exec_comm(const struct thread *thread)
+ {
+- struct comm *comm, *last = NULL;
++ struct comm *comm, *last = NULL, *second_last = NULL;
+
+ list_for_each_entry(comm, &thread->comm_list, list) {
+ if (comm->exec)
+ return comm;
++ second_last = last;
+ last = comm;
+ }
+
++ /*
++ * 'last' with no start time might be the parent's comm of a synthesized
++ * thread (created by processing a synthesized fork event). For a main
++ * thread, that is very probably wrong. Prefer a later comm to avoid
++ * that case.
++ */
++ if (second_last && !last->start && thread->pid_ == thread->tid)
++ return second_last;
++
+ return last;
+ }
+
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