From: "Mike Pagano" <mpagano@gentoo.org>
To: gentoo-commits@lists.gentoo.org
Subject: [gentoo-commits] proj/linux-patches:4.9 commit in: /
Date: Wed, 8 Dec 2021 12:57:11 +0000 (UTC) [thread overview]
Message-ID: <1638968220.dcaca281ef1c3ad43d7d25a2bd5ce968099a4b5f.mpagano@gentoo> (raw)
commit: dcaca281ef1c3ad43d7d25a2bd5ce968099a4b5f
Author: Mike Pagano <mpagano <AT> gentoo <DOT> org>
AuthorDate: Wed Dec 8 12:57:00 2021 +0000
Commit: Mike Pagano <mpagano <AT> gentoo <DOT> org>
CommitDate: Wed Dec 8 12:57:00 2021 +0000
URL: https://gitweb.gentoo.org/proj/linux-patches.git/commit/?id=dcaca281
Linux patch 4.9.292
Signed-off-by: Mike Pagano <mpagano <AT> gentoo.org>
0000_README | 4 +
1291_linux-4.9.292.patch | 3352 ++++++++++++++++++++++++++++++++++++++++++++++
2 files changed, 3356 insertions(+)
diff --git a/0000_README b/0000_README
index 775246ca..24d98d48 100644
--- a/0000_README
+++ b/0000_README
@@ -1207,6 +1207,10 @@ Patch: 1290_linux-4.9.291.patch
From: http://www.kernel.org
Desc: Linux 4.9.291
+Patch: 1291_linux-4.9.292.patch
+From: http://www.kernel.org
+Desc: Linux 4.9.292
+
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/1291_linux-4.9.292.patch b/1291_linux-4.9.292.patch
new file mode 100644
index 00000000..d20a919a
--- /dev/null
+++ b/1291_linux-4.9.292.patch
@@ -0,0 +1,3352 @@
+diff --git a/Makefile b/Makefile
+index fa41ff3c7cc38..6e941bc98dbd3 100644
+--- a/Makefile
++++ b/Makefile
+@@ -1,6 +1,6 @@
+ VERSION = 4
+ PATCHLEVEL = 9
+-SUBLEVEL = 291
++SUBLEVEL = 292
+ EXTRAVERSION =
+ NAME = Roaring Lionus
+
+diff --git a/arch/arm/boot/dts/bcm5301x.dtsi b/arch/arm/boot/dts/bcm5301x.dtsi
+index 4616452ce74de..e0f96be549f14 100644
+--- a/arch/arm/boot/dts/bcm5301x.dtsi
++++ b/arch/arm/boot/dts/bcm5301x.dtsi
+@@ -234,6 +234,8 @@
+
+ gpio-controller;
+ #gpio-cells = <2>;
++ interrupt-controller;
++ #interrupt-cells = <2>;
+ };
+
+ usb2: usb2@21000 {
+diff --git a/arch/arm/include/asm/tlb.h b/arch/arm/include/asm/tlb.h
+index 1e25cd80589e7..1cee2d5409566 100644
+--- a/arch/arm/include/asm/tlb.h
++++ b/arch/arm/include/asm/tlb.h
+@@ -278,6 +278,14 @@ tlb_remove_pmd_tlb_entry(struct mmu_gather *tlb, pmd_t *pmdp, unsigned long addr
+ tlb_add_flush(tlb, addr);
+ }
+
++static inline void
++tlb_flush_pmd_range(struct mmu_gather *tlb, unsigned long address,
++ unsigned long size)
++{
++ tlb_add_flush(tlb, address);
++ tlb_add_flush(tlb, address + size - PMD_SIZE);
++}
++
+ #define pte_free_tlb(tlb, ptep, addr) __pte_free_tlb(tlb, ptep, addr)
+ #define pmd_free_tlb(tlb, pmdp, addr) __pmd_free_tlb(tlb, pmdp, addr)
+ #define pud_free_tlb(tlb, pudp, addr) pud_free((tlb)->mm, pudp)
+diff --git a/arch/arm/mach-socfpga/core.h b/arch/arm/mach-socfpga/core.h
+index 65e1817d8afe6..692a287a8712d 100644
+--- a/arch/arm/mach-socfpga/core.h
++++ b/arch/arm/mach-socfpga/core.h
+@@ -48,7 +48,7 @@ extern void __iomem *sdr_ctl_base_addr;
+ u32 socfpga_sdram_self_refresh(u32 sdr_base);
+ extern unsigned int socfpga_sdram_self_refresh_sz;
+
+-extern char secondary_trampoline, secondary_trampoline_end;
++extern char secondary_trampoline[], secondary_trampoline_end[];
+
+ extern unsigned long socfpga_cpu1start_addr;
+
+diff --git a/arch/arm/mach-socfpga/platsmp.c b/arch/arm/mach-socfpga/platsmp.c
+index 07945748b5714..1dfc9e7389a74 100644
+--- a/arch/arm/mach-socfpga/platsmp.c
++++ b/arch/arm/mach-socfpga/platsmp.c
+@@ -31,14 +31,14 @@
+
+ static int socfpga_boot_secondary(unsigned int cpu, struct task_struct *idle)
+ {
+- int trampoline_size = &secondary_trampoline_end - &secondary_trampoline;
++ int trampoline_size = secondary_trampoline_end - secondary_trampoline;
+
+ if (socfpga_cpu1start_addr) {
+ /* This will put CPU #1 into reset. */
+ writel(RSTMGR_MPUMODRST_CPU1,
+ rst_manager_base_addr + SOCFPGA_RSTMGR_MODMPURST);
+
+- memcpy(phys_to_virt(0), &secondary_trampoline, trampoline_size);
++ memcpy(phys_to_virt(0), secondary_trampoline, trampoline_size);
+
+ writel(virt_to_phys(secondary_startup),
+ sys_manager_base_addr + (socfpga_cpu1start_addr & 0x000000ff));
+@@ -56,12 +56,12 @@ static int socfpga_boot_secondary(unsigned int cpu, struct task_struct *idle)
+
+ static int socfpga_a10_boot_secondary(unsigned int cpu, struct task_struct *idle)
+ {
+- int trampoline_size = &secondary_trampoline_end - &secondary_trampoline;
++ int trampoline_size = secondary_trampoline_end - secondary_trampoline;
+
+ if (socfpga_cpu1start_addr) {
+ writel(RSTMGR_MPUMODRST_CPU1, rst_manager_base_addr +
+ SOCFPGA_A10_RSTMGR_MODMPURST);
+- memcpy(phys_to_virt(0), &secondary_trampoline, trampoline_size);
++ memcpy(phys_to_virt(0), secondary_trampoline, trampoline_size);
+
+ writel(virt_to_phys(secondary_startup),
+ sys_manager_base_addr + (socfpga_cpu1start_addr & 0x00000fff));
+diff --git a/arch/ia64/include/asm/tlb.h b/arch/ia64/include/asm/tlb.h
+index 77e541cf0e5d5..34f4a53595619 100644
+--- a/arch/ia64/include/asm/tlb.h
++++ b/arch/ia64/include/asm/tlb.h
+@@ -272,6 +272,16 @@ __tlb_remove_tlb_entry (struct mmu_gather *tlb, pte_t *ptep, unsigned long addre
+ tlb->end_addr = address + PAGE_SIZE;
+ }
+
++static inline void
++tlb_flush_pmd_range(struct mmu_gather *tlb, unsigned long address,
++ unsigned long size)
++{
++ if (tlb->start_addr > address)
++ tlb->start_addr = address;
++ if (tlb->end_addr < address + size)
++ tlb->end_addr = address + size;
++}
++
+ #define tlb_migrate_finish(mm) platform_tlb_migrate_finish(mm)
+
+ #define tlb_start_vma(tlb, vma) do { } while (0)
+diff --git a/arch/parisc/install.sh b/arch/parisc/install.sh
+index 6f68784fea25f..a8c49815f58c8 100644
+--- a/arch/parisc/install.sh
++++ b/arch/parisc/install.sh
+@@ -39,6 +39,7 @@ verify "$3"
+ if [ -n "${INSTALLKERNEL}" ]; then
+ if [ -x ~/bin/${INSTALLKERNEL} ]; then exec ~/bin/${INSTALLKERNEL} "$@"; fi
+ if [ -x /sbin/${INSTALLKERNEL} ]; then exec /sbin/${INSTALLKERNEL} "$@"; fi
++ if [ -x /usr/sbin/${INSTALLKERNEL} ]; then exec /usr/sbin/${INSTALLKERNEL} "$@"; fi
+ fi
+
+ # Default install
+diff --git a/arch/s390/include/asm/tlb.h b/arch/s390/include/asm/tlb.h
+index 15711de104035..d2681d5a3d5a0 100644
+--- a/arch/s390/include/asm/tlb.h
++++ b/arch/s390/include/asm/tlb.h
+@@ -116,6 +116,20 @@ static inline void tlb_remove_page_size(struct mmu_gather *tlb,
+ return tlb_remove_page(tlb, page);
+ }
+
++static inline void tlb_flush_pmd_range(struct mmu_gather *tlb,
++ unsigned long address, unsigned long size)
++{
++ /*
++ * the range might exceed the original range that was provided to
++ * tlb_gather_mmu(), so we need to update it despite the fact it is
++ * usually not updated.
++ */
++ if (tlb->start > address)
++ tlb->start = address;
++ if (tlb->end < address + size)
++ tlb->end = address + size;
++}
++
+ /*
+ * pte_free_tlb frees a pte table and clears the CRSTE for the
+ * page table from the tlb.
+diff --git a/arch/s390/kernel/setup.c b/arch/s390/kernel/setup.c
+index 9939879f5f253..2f3b7802d8b87 100644
+--- a/arch/s390/kernel/setup.c
++++ b/arch/s390/kernel/setup.c
+@@ -693,9 +693,6 @@ static void __init setup_memory(void)
+ storage_key_init_range(reg->base, reg->base + reg->size);
+ }
+ psw_set_key(PAGE_DEFAULT_KEY);
+-
+- /* Only cosmetics */
+- memblock_enforce_memory_limit(memblock_end_of_DRAM());
+ }
+
+ /*
+diff --git a/arch/sh/include/asm/tlb.h b/arch/sh/include/asm/tlb.h
+index 025cdb1032f6f..9f6ab2cd10fc8 100644
+--- a/arch/sh/include/asm/tlb.h
++++ b/arch/sh/include/asm/tlb.h
+@@ -115,6 +115,16 @@ static inline bool __tlb_remove_page_size(struct mmu_gather *tlb,
+ return __tlb_remove_page(tlb, page);
+ }
+
++static inline void
++tlb_flush_pmd_range(struct mmu_gather *tlb, unsigned long address,
++ unsigned long size)
++{
++ if (tlb->start > address)
++ tlb->start = address;
++ if (tlb->end < address + size)
++ tlb->end = address + size;
++}
++
+ static inline bool __tlb_remove_pte_page(struct mmu_gather *tlb,
+ struct page *page)
+ {
+diff --git a/arch/um/include/asm/tlb.h b/arch/um/include/asm/tlb.h
+index 821ff0acfe17f..6fb47b17179ff 100644
+--- a/arch/um/include/asm/tlb.h
++++ b/arch/um/include/asm/tlb.h
+@@ -128,6 +128,18 @@ static inline void tlb_remove_page_size(struct mmu_gather *tlb,
+ return tlb_remove_page(tlb, page);
+ }
+
++static inline void
++tlb_flush_pmd_range(struct mmu_gather *tlb, unsigned long address,
++ unsigned long size)
++{
++ tlb->need_flush = 1;
++
++ if (tlb->start > address)
++ tlb->start = address;
++ if (tlb->end < address + size)
++ tlb->end = address + size;
++}
++
+ /**
+ * tlb_remove_tlb_entry - remember a pte unmapping for later tlb invalidation.
+ *
+diff --git a/drivers/android/binder.c b/drivers/android/binder.c
+index f78f7d06ad9fc..bf047f16fce9e 100644
+--- a/drivers/android/binder.c
++++ b/drivers/android/binder.c
+@@ -1506,7 +1506,7 @@ static void binder_transaction(struct binder_proc *proc,
+ t->from = thread;
+ else
+ t->from = NULL;
+- t->sender_euid = proc->cred->euid;
++ t->sender_euid = task_euid(proc->tsk);
+ t->to_proc = target_proc;
+ t->to_thread = target_thread;
+ t->code = tr->code;
+diff --git a/drivers/ata/sata_fsl.c b/drivers/ata/sata_fsl.c
+index 100b5a3621ef3..6d2e54209ae69 100644
+--- a/drivers/ata/sata_fsl.c
++++ b/drivers/ata/sata_fsl.c
+@@ -1406,6 +1406,14 @@ static int sata_fsl_init_controller(struct ata_host *host)
+ return 0;
+ }
+
++static void sata_fsl_host_stop(struct ata_host *host)
++{
++ struct sata_fsl_host_priv *host_priv = host->private_data;
++
++ iounmap(host_priv->hcr_base);
++ kfree(host_priv);
++}
++
+ /*
+ * scsi mid-layer and libata interface structures
+ */
+@@ -1438,6 +1446,8 @@ static struct ata_port_operations sata_fsl_ops = {
+ .port_start = sata_fsl_port_start,
+ .port_stop = sata_fsl_port_stop,
+
++ .host_stop = sata_fsl_host_stop,
++
+ .pmp_attach = sata_fsl_pmp_attach,
+ .pmp_detach = sata_fsl_pmp_detach,
+ };
+@@ -1492,9 +1502,9 @@ static int sata_fsl_probe(struct platform_device *ofdev)
+ host_priv->ssr_base = ssr_base;
+ host_priv->csr_base = csr_base;
+
+- irq = irq_of_parse_and_map(ofdev->dev.of_node, 0);
+- if (!irq) {
+- dev_err(&ofdev->dev, "invalid irq from platform\n");
++ irq = platform_get_irq(ofdev, 0);
++ if (irq < 0) {
++ retval = irq;
+ goto error_exit_with_cleanup;
+ }
+ host_priv->irq = irq;
+@@ -1571,10 +1581,6 @@ static int sata_fsl_remove(struct platform_device *ofdev)
+
+ ata_host_detach(host);
+
+- irq_dispose_mapping(host_priv->irq);
+- iounmap(host_priv->hcr_base);
+- kfree(host_priv);
+-
+ return 0;
+ }
+
+diff --git a/drivers/block/xen-blkfront.c b/drivers/block/xen-blkfront.c
+index 6ee3e928ebf18..df58e7d793f52 100644
+--- a/drivers/block/xen-blkfront.c
++++ b/drivers/block/xen-blkfront.c
+@@ -78,6 +78,7 @@ enum blkif_state {
+ BLKIF_STATE_DISCONNECTED,
+ BLKIF_STATE_CONNECTED,
+ BLKIF_STATE_SUSPENDED,
++ BLKIF_STATE_ERROR,
+ };
+
+ struct grant {
+@@ -87,6 +88,7 @@ struct grant {
+ };
+
+ enum blk_req_status {
++ REQ_PROCESSING,
+ REQ_WAITING,
+ REQ_DONE,
+ REQ_ERROR,
+@@ -529,10 +531,10 @@ static unsigned long blkif_ring_get_request(struct blkfront_ring_info *rinfo,
+
+ id = get_id_from_freelist(rinfo);
+ rinfo->shadow[id].request = req;
+- rinfo->shadow[id].status = REQ_WAITING;
++ rinfo->shadow[id].status = REQ_PROCESSING;
+ rinfo->shadow[id].associated_id = NO_ASSOCIATED_ID;
+
+- (*ring_req)->u.rw.id = id;
++ rinfo->shadow[id].req.u.rw.id = id;
+
+ return id;
+ }
+@@ -540,11 +542,12 @@ static unsigned long blkif_ring_get_request(struct blkfront_ring_info *rinfo,
+ static int blkif_queue_discard_req(struct request *req, struct blkfront_ring_info *rinfo)
+ {
+ struct blkfront_info *info = rinfo->dev_info;
+- struct blkif_request *ring_req;
++ struct blkif_request *ring_req, *final_ring_req;
+ unsigned long id;
+
+ /* Fill out a communications ring structure. */
+- id = blkif_ring_get_request(rinfo, req, &ring_req);
++ id = blkif_ring_get_request(rinfo, req, &final_ring_req);
++ ring_req = &rinfo->shadow[id].req;
+
+ ring_req->operation = BLKIF_OP_DISCARD;
+ ring_req->u.discard.nr_sectors = blk_rq_sectors(req);
+@@ -555,8 +558,9 @@ static int blkif_queue_discard_req(struct request *req, struct blkfront_ring_inf
+ else
+ ring_req->u.discard.flag = 0;
+
+- /* Keep a private copy so we can reissue requests when recovering. */
+- rinfo->shadow[id].req = *ring_req;
++ /* Copy the request to the ring page. */
++ *final_ring_req = *ring_req;
++ rinfo->shadow[id].status = REQ_WAITING;
+
+ return 0;
+ }
+@@ -689,6 +693,7 @@ static int blkif_queue_rw_req(struct request *req, struct blkfront_ring_info *ri
+ {
+ struct blkfront_info *info = rinfo->dev_info;
+ struct blkif_request *ring_req, *extra_ring_req = NULL;
++ struct blkif_request *final_ring_req, *final_extra_ring_req = NULL;
+ unsigned long id, extra_id = NO_ASSOCIATED_ID;
+ bool require_extra_req = false;
+ int i;
+@@ -730,7 +735,8 @@ static int blkif_queue_rw_req(struct request *req, struct blkfront_ring_info *ri
+ }
+
+ /* Fill out a communications ring structure. */
+- id = blkif_ring_get_request(rinfo, req, &ring_req);
++ id = blkif_ring_get_request(rinfo, req, &final_ring_req);
++ ring_req = &rinfo->shadow[id].req;
+
+ num_sg = blk_rq_map_sg(req->q, req, rinfo->shadow[id].sg);
+ num_grant = 0;
+@@ -781,7 +787,9 @@ static int blkif_queue_rw_req(struct request *req, struct blkfront_ring_info *ri
+ ring_req->u.rw.nr_segments = num_grant;
+ if (unlikely(require_extra_req)) {
+ extra_id = blkif_ring_get_request(rinfo, req,
+- &extra_ring_req);
++ &final_extra_ring_req);
++ extra_ring_req = &rinfo->shadow[extra_id].req;
++
+ /*
+ * Only the first request contains the scatter-gather
+ * list.
+@@ -823,10 +831,13 @@ static int blkif_queue_rw_req(struct request *req, struct blkfront_ring_info *ri
+ if (setup.segments)
+ kunmap_atomic(setup.segments);
+
+- /* Keep a private copy so we can reissue requests when recovering. */
+- rinfo->shadow[id].req = *ring_req;
+- if (unlikely(require_extra_req))
+- rinfo->shadow[extra_id].req = *extra_ring_req;
++ /* Copy request(s) to the ring page. */
++ *final_ring_req = *ring_req;
++ rinfo->shadow[id].status = REQ_WAITING;
++ if (unlikely(require_extra_req)) {
++ *final_extra_ring_req = *extra_ring_req;
++ rinfo->shadow[extra_id].status = REQ_WAITING;
++ }
+
+ if (max_grefs > 0)
+ gnttab_free_grant_references(setup.gref_head);
+@@ -1396,8 +1407,8 @@ static enum blk_req_status blkif_rsp_to_req_status(int rsp)
+ static int blkif_get_final_status(enum blk_req_status s1,
+ enum blk_req_status s2)
+ {
+- BUG_ON(s1 == REQ_WAITING);
+- BUG_ON(s2 == REQ_WAITING);
++ BUG_ON(s1 < REQ_DONE);
++ BUG_ON(s2 < REQ_DONE);
+
+ if (s1 == REQ_ERROR || s2 == REQ_ERROR)
+ return BLKIF_RSP_ERROR;
+@@ -1430,7 +1441,7 @@ static bool blkif_completion(unsigned long *id,
+ s->status = blkif_rsp_to_req_status(bret->status);
+
+ /* Wait the second response if not yet here. */
+- if (s2->status == REQ_WAITING)
++ if (s2->status < REQ_DONE)
+ return 0;
+
+ bret->status = blkif_get_final_status(s->status,
+@@ -1538,7 +1549,7 @@ static bool blkif_completion(unsigned long *id,
+ static irqreturn_t blkif_interrupt(int irq, void *dev_id)
+ {
+ struct request *req;
+- struct blkif_response *bret;
++ struct blkif_response bret;
+ RING_IDX i, rp;
+ unsigned long flags;
+ struct blkfront_ring_info *rinfo = (struct blkfront_ring_info *)dev_id;
+@@ -1550,50 +1561,72 @@ static irqreturn_t blkif_interrupt(int irq, void *dev_id)
+
+ spin_lock_irqsave(&rinfo->ring_lock, flags);
+ again:
+- rp = rinfo->ring.sring->rsp_prod;
+- rmb(); /* Ensure we see queued responses up to 'rp'. */
++ rp = READ_ONCE(rinfo->ring.sring->rsp_prod);
++ virt_rmb(); /* Ensure we see queued responses up to 'rp'. */
++ if (RING_RESPONSE_PROD_OVERFLOW(&rinfo->ring, rp)) {
++ pr_alert("%s: illegal number of responses %u\n",
++ info->gd->disk_name, rp - rinfo->ring.rsp_cons);
++ goto err;
++ }
+
+ for (i = rinfo->ring.rsp_cons; i != rp; i++) {
+ unsigned long id;
++ unsigned int op;
++
++ RING_COPY_RESPONSE(&rinfo->ring, i, &bret);
++ id = bret.id;
+
+- bret = RING_GET_RESPONSE(&rinfo->ring, i);
+- id = bret->id;
+ /*
+ * The backend has messed up and given us an id that we would
+ * never have given to it (we stamp it up to BLK_RING_SIZE -
+ * look in get_id_from_freelist.
+ */
+ if (id >= BLK_RING_SIZE(info)) {
+- WARN(1, "%s: response to %s has incorrect id (%ld)\n",
+- info->gd->disk_name, op_name(bret->operation), id);
+- /* We can't safely get the 'struct request' as
+- * the id is busted. */
+- continue;
++ pr_alert("%s: response has incorrect id (%ld)\n",
++ info->gd->disk_name, id);
++ goto err;
+ }
++ if (rinfo->shadow[id].status != REQ_WAITING) {
++ pr_alert("%s: response references no pending request\n",
++ info->gd->disk_name);
++ goto err;
++ }
++
++ rinfo->shadow[id].status = REQ_PROCESSING;
+ req = rinfo->shadow[id].request;
+
+- if (bret->operation != BLKIF_OP_DISCARD) {
++ op = rinfo->shadow[id].req.operation;
++ if (op == BLKIF_OP_INDIRECT)
++ op = rinfo->shadow[id].req.u.indirect.indirect_op;
++ if (bret.operation != op) {
++ pr_alert("%s: response has wrong operation (%u instead of %u)\n",
++ info->gd->disk_name, bret.operation, op);
++ goto err;
++ }
++
++ if (bret.operation != BLKIF_OP_DISCARD) {
+ /*
+ * We may need to wait for an extra response if the
+ * I/O request is split in 2
+ */
+- if (!blkif_completion(&id, rinfo, bret))
++ if (!blkif_completion(&id, rinfo, &bret))
+ continue;
+ }
+
+ if (add_id_to_freelist(rinfo, id)) {
+ WARN(1, "%s: response to %s (id %ld) couldn't be recycled!\n",
+- info->gd->disk_name, op_name(bret->operation), id);
++ info->gd->disk_name, op_name(bret.operation), id);
+ continue;
+ }
+
+- error = (bret->status == BLKIF_RSP_OKAY) ? 0 : -EIO;
+- switch (bret->operation) {
++ error = (bret.status == BLKIF_RSP_OKAY) ? 0 : -EIO;
++ switch (bret.operation) {
+ case BLKIF_OP_DISCARD:
+- if (unlikely(bret->status == BLKIF_RSP_EOPNOTSUPP)) {
++ if (unlikely(bret.status == BLKIF_RSP_EOPNOTSUPP)) {
+ struct request_queue *rq = info->rq;
+- printk(KERN_WARNING "blkfront: %s: %s op failed\n",
+- info->gd->disk_name, op_name(bret->operation));
++
++ pr_warn_ratelimited("blkfront: %s: %s op failed\n",
++ info->gd->disk_name, op_name(bret.operation));
+ error = -EOPNOTSUPP;
+ info->feature_discard = 0;
+ info->feature_secdiscard = 0;
+@@ -1604,15 +1637,15 @@ static irqreturn_t blkif_interrupt(int irq, void *dev_id)
+ break;
+ case BLKIF_OP_FLUSH_DISKCACHE:
+ case BLKIF_OP_WRITE_BARRIER:
+- if (unlikely(bret->status == BLKIF_RSP_EOPNOTSUPP)) {
+- printk(KERN_WARNING "blkfront: %s: %s op failed\n",
+- info->gd->disk_name, op_name(bret->operation));
++ if (unlikely(bret.status == BLKIF_RSP_EOPNOTSUPP)) {
++ pr_warn_ratelimited("blkfront: %s: %s op failed\n",
++ info->gd->disk_name, op_name(bret.operation));
+ error = -EOPNOTSUPP;
+ }
+- if (unlikely(bret->status == BLKIF_RSP_ERROR &&
++ if (unlikely(bret.status == BLKIF_RSP_ERROR &&
+ rinfo->shadow[id].req.u.rw.nr_segments == 0)) {
+- printk(KERN_WARNING "blkfront: %s: empty %s op failed\n",
+- info->gd->disk_name, op_name(bret->operation));
++ pr_warn_ratelimited("blkfront: %s: empty %s op failed\n",
++ info->gd->disk_name, op_name(bret.operation));
+ error = -EOPNOTSUPP;
+ }
+ if (unlikely(error)) {
+@@ -1625,9 +1658,10 @@ static irqreturn_t blkif_interrupt(int irq, void *dev_id)
+ /* fall through */
+ case BLKIF_OP_READ:
+ case BLKIF_OP_WRITE:
+- if (unlikely(bret->status != BLKIF_RSP_OKAY))
+- dev_dbg(&info->xbdev->dev, "Bad return from blkdev data "
+- "request: %x\n", bret->status);
++ if (unlikely(bret.status != BLKIF_RSP_OKAY))
++ dev_dbg_ratelimited(&info->xbdev->dev,
++ "Bad return from blkdev data request: %#x\n",
++ bret.status);
+
+ blk_mq_complete_request(req, error);
+ break;
+@@ -1651,6 +1685,14 @@ static irqreturn_t blkif_interrupt(int irq, void *dev_id)
+ spin_unlock_irqrestore(&rinfo->ring_lock, flags);
+
+ return IRQ_HANDLED;
++
++ err:
++ info->connected = BLKIF_STATE_ERROR;
++
++ spin_unlock_irqrestore(&rinfo->ring_lock, flags);
++
++ pr_alert("%s disabled for further use\n", info->gd->disk_name);
++ return IRQ_HANDLED;
+ }
+
+
+diff --git a/drivers/gpu/drm/vc4/vc4_bo.c b/drivers/gpu/drm/vc4/vc4_bo.c
+index d53e805d392f9..64fc99cf54d5b 100644
+--- a/drivers/gpu/drm/vc4/vc4_bo.c
++++ b/drivers/gpu/drm/vc4/vc4_bo.c
+@@ -198,7 +198,7 @@ struct drm_gem_object *vc4_create_object(struct drm_device *dev, size_t size)
+
+ bo = kzalloc(sizeof(*bo), GFP_KERNEL);
+ if (!bo)
+- return ERR_PTR(-ENOMEM);
++ return NULL;
+
+ mutex_lock(&vc4->bo_lock);
+ vc4->bo_stats.num_allocated++;
+diff --git a/drivers/net/ethernet/dec/tulip/de4x5.c b/drivers/net/ethernet/dec/tulip/de4x5.c
+index 005c79b5b3f01..a5a291b848b06 100644
+--- a/drivers/net/ethernet/dec/tulip/de4x5.c
++++ b/drivers/net/ethernet/dec/tulip/de4x5.c
+@@ -4704,6 +4704,10 @@ type3_infoblock(struct net_device *dev, u_char count, u_char *p)
+ lp->ibn = 3;
+ lp->active = *p++;
+ if (MOTO_SROM_BUG) lp->active = 0;
++ /* if (MOTO_SROM_BUG) statement indicates lp->active could
++ * be 8 (i.e. the size of array lp->phy) */
++ if (WARN_ON(lp->active >= ARRAY_SIZE(lp->phy)))
++ return -EINVAL;
+ lp->phy[lp->active].gep = (*p ? p : NULL); p += (2 * (*p) + 1);
+ lp->phy[lp->active].rst = (*p ? p : NULL); p += (2 * (*p) + 1);
+ lp->phy[lp->active].mc = get_unaligned_le16(p); p += 2;
+@@ -4995,19 +4999,23 @@ mii_get_phy(struct net_device *dev)
+ }
+ if ((j == limit) && (i < DE4X5_MAX_MII)) {
+ for (k=0; k < DE4X5_MAX_PHY && lp->phy[k].id; k++);
+- lp->phy[k].addr = i;
+- lp->phy[k].id = id;
+- lp->phy[k].spd.reg = GENERIC_REG; /* ANLPA register */
+- lp->phy[k].spd.mask = GENERIC_MASK; /* 100Mb/s technologies */
+- lp->phy[k].spd.value = GENERIC_VALUE; /* TX & T4, H/F Duplex */
+- lp->mii_cnt++;
+- lp->active++;
+- printk("%s: Using generic MII device control. If the board doesn't operate,\nplease mail the following dump to the author:\n", dev->name);
+- j = de4x5_debug;
+- de4x5_debug |= DEBUG_MII;
+- de4x5_dbg_mii(dev, k);
+- de4x5_debug = j;
+- printk("\n");
++ if (k < DE4X5_MAX_PHY) {
++ lp->phy[k].addr = i;
++ lp->phy[k].id = id;
++ lp->phy[k].spd.reg = GENERIC_REG; /* ANLPA register */
++ lp->phy[k].spd.mask = GENERIC_MASK; /* 100Mb/s technologies */
++ lp->phy[k].spd.value = GENERIC_VALUE; /* TX & T4, H/F Duplex */
++ lp->mii_cnt++;
++ lp->active++;
++ printk("%s: Using generic MII device control. If the board doesn't operate,\nplease mail the following dump to the author:\n", dev->name);
++ j = de4x5_debug;
++ de4x5_debug |= DEBUG_MII;
++ de4x5_dbg_mii(dev, k);
++ de4x5_debug = j;
++ printk("\n");
++ } else {
++ goto purgatory;
++ }
+ }
+ }
+ purgatory:
+diff --git a/drivers/net/ethernet/hisilicon/hns/hns_dsaf_misc.c b/drivers/net/ethernet/hisilicon/hns/hns_dsaf_misc.c
+index 67accce1d33d0..e89a62c6f2301 100644
+--- a/drivers/net/ethernet/hisilicon/hns/hns_dsaf_misc.c
++++ b/drivers/net/ethernet/hisilicon/hns/hns_dsaf_misc.c
+@@ -312,6 +312,10 @@ static void hns_dsaf_ge_srst_by_port(struct dsaf_device *dsaf_dev, u32 port,
+ return;
+
+ if (!HNS_DSAF_IS_DEBUG(dsaf_dev)) {
++ /* DSAF_MAX_PORT_NUM is 6, but DSAF_GE_NUM is 8.
++ We need check to prevent array overflow */
++ if (port >= DSAF_MAX_PORT_NUM)
++ return;
+ reg_val_1 = 0x1 << port;
+ port_rst_off = dsaf_dev->mac_cb[port]->port_rst_off;
+ /* there is difference between V1 and V2 in register.*/
+diff --git a/drivers/net/ethernet/natsemi/xtsonic.c b/drivers/net/ethernet/natsemi/xtsonic.c
+index 7007d212f3e4e..9b041848b3895 100644
+--- a/drivers/net/ethernet/natsemi/xtsonic.c
++++ b/drivers/net/ethernet/natsemi/xtsonic.c
+@@ -128,7 +128,7 @@ static const struct net_device_ops xtsonic_netdev_ops = {
+ .ndo_set_mac_address = eth_mac_addr,
+ };
+
+-static int __init sonic_probe1(struct net_device *dev)
++static int sonic_probe1(struct net_device *dev)
+ {
+ static unsigned version_printed = 0;
+ unsigned int silicon_revision;
+diff --git a/drivers/net/ethernet/qlogic/qlcnic/qlcnic_83xx_hw.c b/drivers/net/ethernet/qlogic/qlcnic/qlcnic_83xx_hw.c
+index dce36e9e1879c..59b77bb891475 100644
+--- a/drivers/net/ethernet/qlogic/qlcnic/qlcnic_83xx_hw.c
++++ b/drivers/net/ethernet/qlogic/qlcnic/qlcnic_83xx_hw.c
+@@ -1078,8 +1078,14 @@ static int qlcnic_83xx_add_rings(struct qlcnic_adapter *adapter)
+ sds_mbx_size = sizeof(struct qlcnic_sds_mbx);
+ context_id = recv_ctx->context_id;
+ num_sds = adapter->drv_sds_rings - QLCNIC_MAX_SDS_RINGS;
+- ahw->hw_ops->alloc_mbx_args(&cmd, adapter,
+- QLCNIC_CMD_ADD_RCV_RINGS);
++ err = ahw->hw_ops->alloc_mbx_args(&cmd, adapter,
++ QLCNIC_CMD_ADD_RCV_RINGS);
++ if (err) {
++ dev_err(&adapter->pdev->dev,
++ "Failed to alloc mbx args %d\n", err);
++ return err;
++ }
++
+ cmd.req.arg[1] = 0 | (num_sds << 8) | (context_id << 16);
+
+ /* set up status rings, mbx 2-81 */
+diff --git a/drivers/net/vrf.c b/drivers/net/vrf.c
+index 3b6e908d31646..9ac1dbf0a993c 100644
+--- a/drivers/net/vrf.c
++++ b/drivers/net/vrf.c
+@@ -226,6 +226,7 @@ static netdev_tx_t vrf_process_v6_outbound(struct sk_buff *skb,
+ /* strip the ethernet header added for pass through VRF device */
+ __skb_pull(skb, skb_network_offset(skb));
+
++ memset(IP6CB(skb), 0, sizeof(*IP6CB(skb)));
+ ret = vrf_ip6_local_out(net, skb->sk, skb);
+ if (unlikely(net_xmit_eval(ret)))
+ dev->stats.tx_errors++;
+@@ -332,6 +333,7 @@ static netdev_tx_t vrf_process_v4_outbound(struct sk_buff *skb,
+ RT_SCOPE_LINK);
+ }
+
++ memset(IPCB(skb), 0, sizeof(*IPCB(skb)));
+ ret = vrf_ip_local_out(dev_net(skb_dst(skb)->dev), skb->sk, skb);
+ if (unlikely(net_xmit_eval(ret)))
+ vrf_dev->stats.tx_errors++;
+diff --git a/drivers/net/xen-netfront.c b/drivers/net/xen-netfront.c
+index 0971c09363cbf..0d2df76902384 100644
+--- a/drivers/net/xen-netfront.c
++++ b/drivers/net/xen-netfront.c
+@@ -120,21 +120,17 @@ struct netfront_queue {
+
+ /*
+ * {tx,rx}_skbs store outstanding skbuffs. Free tx_skb entries
+- * are linked from tx_skb_freelist through skb_entry.link.
+- *
+- * NB. Freelist index entries are always going to be less than
+- * PAGE_OFFSET, whereas pointers to skbs will always be equal or
+- * greater than PAGE_OFFSET: we use this property to distinguish
+- * them.
++ * are linked from tx_skb_freelist through tx_link.
+ */
+- union skb_entry {
+- struct sk_buff *skb;
+- unsigned long link;
+- } tx_skbs[NET_TX_RING_SIZE];
++ struct sk_buff *tx_skbs[NET_TX_RING_SIZE];
++ unsigned short tx_link[NET_TX_RING_SIZE];
++#define TX_LINK_NONE 0xffff
++#define TX_PENDING 0xfffe
+ grant_ref_t gref_tx_head;
+ grant_ref_t grant_tx_ref[NET_TX_RING_SIZE];
+ struct page *grant_tx_page[NET_TX_RING_SIZE];
+ unsigned tx_skb_freelist;
++ unsigned int tx_pend_queue;
+
+ spinlock_t rx_lock ____cacheline_aligned_in_smp;
+ struct xen_netif_rx_front_ring rx;
+@@ -160,6 +156,9 @@ struct netfront_info {
+ struct netfront_stats __percpu *rx_stats;
+ struct netfront_stats __percpu *tx_stats;
+
++ /* Is device behaving sane? */
++ bool broken;
++
+ atomic_t rx_gso_checksum_fixup;
+ };
+
+@@ -168,33 +167,25 @@ struct netfront_rx_info {
+ struct xen_netif_extra_info extras[XEN_NETIF_EXTRA_TYPE_MAX - 1];
+ };
+
+-static void skb_entry_set_link(union skb_entry *list, unsigned short id)
+-{
+- list->link = id;
+-}
+-
+-static int skb_entry_is_link(const union skb_entry *list)
+-{
+- BUILD_BUG_ON(sizeof(list->skb) != sizeof(list->link));
+- return (unsigned long)list->skb < PAGE_OFFSET;
+-}
+-
+ /*
+ * Access macros for acquiring freeing slots in tx_skbs[].
+ */
+
+-static void add_id_to_freelist(unsigned *head, union skb_entry *list,
+- unsigned short id)
++static void add_id_to_list(unsigned *head, unsigned short *list,
++ unsigned short id)
+ {
+- skb_entry_set_link(&list[id], *head);
++ list[id] = *head;
+ *head = id;
+ }
+
+-static unsigned short get_id_from_freelist(unsigned *head,
+- union skb_entry *list)
++static unsigned short get_id_from_list(unsigned *head, unsigned short *list)
+ {
+ unsigned int id = *head;
+- *head = list[id].link;
++
++ if (id != TX_LINK_NONE) {
++ *head = list[id];
++ list[id] = TX_LINK_NONE;
++ }
+ return id;
+ }
+
+@@ -352,7 +343,7 @@ static int xennet_open(struct net_device *dev)
+ unsigned int i = 0;
+ struct netfront_queue *queue = NULL;
+
+- if (!np->queues)
++ if (!np->queues || np->broken)
+ return -ENODEV;
+
+ for (i = 0; i < num_queues; ++i) {
+@@ -380,27 +371,47 @@ static void xennet_tx_buf_gc(struct netfront_queue *queue)
+ unsigned short id;
+ struct sk_buff *skb;
+ bool more_to_do;
++ const struct device *dev = &queue->info->netdev->dev;
+
+ BUG_ON(!netif_carrier_ok(queue->info->netdev));
+
+ do {
+ prod = queue->tx.sring->rsp_prod;
++ if (RING_RESPONSE_PROD_OVERFLOW(&queue->tx, prod)) {
++ dev_alert(dev, "Illegal number of responses %u\n",
++ prod - queue->tx.rsp_cons);
++ goto err;
++ }
+ rmb(); /* Ensure we see responses up to 'rp'. */
+
+ for (cons = queue->tx.rsp_cons; cons != prod; cons++) {
+- struct xen_netif_tx_response *txrsp;
++ struct xen_netif_tx_response txrsp;
+
+- txrsp = RING_GET_RESPONSE(&queue->tx, cons);
+- if (txrsp->status == XEN_NETIF_RSP_NULL)
++ RING_COPY_RESPONSE(&queue->tx, cons, &txrsp);
++ if (txrsp.status == XEN_NETIF_RSP_NULL)
+ continue;
+
+- id = txrsp->id;
+- skb = queue->tx_skbs[id].skb;
++ id = txrsp.id;
++ if (id >= RING_SIZE(&queue->tx)) {
++ dev_alert(dev,
++ "Response has incorrect id (%u)\n",
++ id);
++ goto err;
++ }
++ if (queue->tx_link[id] != TX_PENDING) {
++ dev_alert(dev,
++ "Response for inactive request\n");
++ goto err;
++ }
++
++ queue->tx_link[id] = TX_LINK_NONE;
++ skb = queue->tx_skbs[id];
++ queue->tx_skbs[id] = NULL;
+ if (unlikely(gnttab_query_foreign_access(
+ queue->grant_tx_ref[id]) != 0)) {
+- pr_alert("%s: warning -- grant still in use by backend domain\n",
+- __func__);
+- BUG();
++ dev_alert(dev,
++ "Grant still in use by backend domain\n");
++ goto err;
+ }
+ gnttab_end_foreign_access_ref(
+ queue->grant_tx_ref[id], GNTMAP_readonly);
+@@ -408,7 +419,7 @@ static void xennet_tx_buf_gc(struct netfront_queue *queue)
+ &queue->gref_tx_head, queue->grant_tx_ref[id]);
+ queue->grant_tx_ref[id] = GRANT_INVALID_REF;
+ queue->grant_tx_page[id] = NULL;
+- add_id_to_freelist(&queue->tx_skb_freelist, queue->tx_skbs, id);
++ add_id_to_list(&queue->tx_skb_freelist, queue->tx_link, id);
+ dev_kfree_skb_irq(skb);
+ }
+
+@@ -418,13 +429,20 @@ static void xennet_tx_buf_gc(struct netfront_queue *queue)
+ } while (more_to_do);
+
+ xennet_maybe_wake_tx(queue);
++
++ return;
++
++ err:
++ queue->info->broken = true;
++ dev_alert(dev, "Disabled for further use\n");
+ }
+
+ struct xennet_gnttab_make_txreq {
+ struct netfront_queue *queue;
+ struct sk_buff *skb;
+ struct page *page;
+- struct xen_netif_tx_request *tx; /* Last request */
++ struct xen_netif_tx_request *tx; /* Last request on ring page */
++ struct xen_netif_tx_request tx_local; /* Last request local copy*/
+ unsigned int size;
+ };
+
+@@ -440,7 +458,7 @@ static void xennet_tx_setup_grant(unsigned long gfn, unsigned int offset,
+ struct netfront_queue *queue = info->queue;
+ struct sk_buff *skb = info->skb;
+
+- id = get_id_from_freelist(&queue->tx_skb_freelist, queue->tx_skbs);
++ id = get_id_from_list(&queue->tx_skb_freelist, queue->tx_link);
+ tx = RING_GET_REQUEST(&queue->tx, queue->tx.req_prod_pvt++);
+ ref = gnttab_claim_grant_reference(&queue->gref_tx_head);
+ WARN_ON_ONCE(IS_ERR_VALUE((unsigned long)(int)ref));
+@@ -448,34 +466,37 @@ static void xennet_tx_setup_grant(unsigned long gfn, unsigned int offset,
+ gnttab_grant_foreign_access_ref(ref, queue->info->xbdev->otherend_id,
+ gfn, GNTMAP_readonly);
+
+- queue->tx_skbs[id].skb = skb;
++ queue->tx_skbs[id] = skb;
+ queue->grant_tx_page[id] = page;
+ queue->grant_tx_ref[id] = ref;
+
+- tx->id = id;
+- tx->gref = ref;
+- tx->offset = offset;
+- tx->size = len;
+- tx->flags = 0;
++ info->tx_local.id = id;
++ info->tx_local.gref = ref;
++ info->tx_local.offset = offset;
++ info->tx_local.size = len;
++ info->tx_local.flags = 0;
++
++ *tx = info->tx_local;
++
++ /*
++ * Put the request in the pending queue, it will be set to be pending
++ * when the producer index is about to be raised.
++ */
++ add_id_to_list(&queue->tx_pend_queue, queue->tx_link, id);
+
+ info->tx = tx;
+- info->size += tx->size;
++ info->size += info->tx_local.size;
+ }
+
+ static struct xen_netif_tx_request *xennet_make_first_txreq(
+- struct netfront_queue *queue, struct sk_buff *skb,
+- struct page *page, unsigned int offset, unsigned int len)
++ struct xennet_gnttab_make_txreq *info,
++ unsigned int offset, unsigned int len)
+ {
+- struct xennet_gnttab_make_txreq info = {
+- .queue = queue,
+- .skb = skb,
+- .page = page,
+- .size = 0,
+- };
++ info->size = 0;
+
+- gnttab_for_one_grant(page, offset, len, xennet_tx_setup_grant, &info);
++ gnttab_for_one_grant(info->page, offset, len, xennet_tx_setup_grant, info);
+
+- return info.tx;
++ return info->tx;
+ }
+
+ static void xennet_make_one_txreq(unsigned long gfn, unsigned int offset,
+@@ -488,35 +509,27 @@ static void xennet_make_one_txreq(unsigned long gfn, unsigned int offset,
+ xennet_tx_setup_grant(gfn, offset, len, data);
+ }
+
+-static struct xen_netif_tx_request *xennet_make_txreqs(
+- struct netfront_queue *queue, struct xen_netif_tx_request *tx,
+- struct sk_buff *skb, struct page *page,
++static void xennet_make_txreqs(
++ struct xennet_gnttab_make_txreq *info,
++ struct page *page,
+ unsigned int offset, unsigned int len)
+ {
+- struct xennet_gnttab_make_txreq info = {
+- .queue = queue,
+- .skb = skb,
+- .tx = tx,
+- };
+-
+ /* Skip unused frames from start of page */
+ page += offset >> PAGE_SHIFT;
+ offset &= ~PAGE_MASK;
+
+ while (len) {
+- info.page = page;
+- info.size = 0;
++ info->page = page;
++ info->size = 0;
+
+ gnttab_foreach_grant_in_range(page, offset, len,
+ xennet_make_one_txreq,
+- &info);
++ info);
+
+ page++;
+ offset = 0;
+- len -= info.size;
++ len -= info->size;
+ }
+-
+- return info.tx;
+ }
+
+ /*
+@@ -563,13 +576,22 @@ static u16 xennet_select_queue(struct net_device *dev, struct sk_buff *skb,
+ return queue_idx;
+ }
+
++static void xennet_mark_tx_pending(struct netfront_queue *queue)
++{
++ unsigned int i;
++
++ while ((i = get_id_from_list(&queue->tx_pend_queue, queue->tx_link)) !=
++ TX_LINK_NONE)
++ queue->tx_link[i] = TX_PENDING;
++}
++
+ #define MAX_XEN_SKB_FRAGS (65536 / XEN_PAGE_SIZE + 1)
+
+ static int xennet_start_xmit(struct sk_buff *skb, struct net_device *dev)
+ {
+ struct netfront_info *np = netdev_priv(dev);
+ struct netfront_stats *tx_stats = this_cpu_ptr(np->tx_stats);
+- struct xen_netif_tx_request *tx, *first_tx;
++ struct xen_netif_tx_request *first_tx;
+ unsigned int i;
+ int notify;
+ int slots;
+@@ -578,6 +600,7 @@ static int xennet_start_xmit(struct sk_buff *skb, struct net_device *dev)
+ unsigned int len;
+ unsigned long flags;
+ struct netfront_queue *queue = NULL;
++ struct xennet_gnttab_make_txreq info = { };
+ unsigned int num_queues = dev->real_num_tx_queues;
+ u16 queue_index;
+ struct sk_buff *nskb;
+@@ -585,6 +608,8 @@ static int xennet_start_xmit(struct sk_buff *skb, struct net_device *dev)
+ /* Drop the packet if no queues are set up */
+ if (num_queues < 1)
+ goto drop;
++ if (unlikely(np->broken))
++ goto drop;
+ /* Determine which queue to transmit this SKB on */
+ queue_index = skb_get_queue_mapping(skb);
+ queue = &np->queues[queue_index];
+@@ -635,21 +660,24 @@ static int xennet_start_xmit(struct sk_buff *skb, struct net_device *dev)
+ }
+
+ /* First request for the linear area. */
+- first_tx = tx = xennet_make_first_txreq(queue, skb,
+- page, offset, len);
+- offset += tx->size;
++ info.queue = queue;
++ info.skb = skb;
++ info.page = page;
++ first_tx = xennet_make_first_txreq(&info, offset, len);
++ offset += info.tx_local.size;
+ if (offset == PAGE_SIZE) {
+ page++;
+ offset = 0;
+ }
+- len -= tx->size;
++ len -= info.tx_local.size;
+
+ if (skb->ip_summed == CHECKSUM_PARTIAL)
+ /* local packet? */
+- tx->flags |= XEN_NETTXF_csum_blank | XEN_NETTXF_data_validated;
++ first_tx->flags |= XEN_NETTXF_csum_blank |
++ XEN_NETTXF_data_validated;
+ else if (skb->ip_summed == CHECKSUM_UNNECESSARY)
+ /* remote but checksummed. */
+- tx->flags |= XEN_NETTXF_data_validated;
++ first_tx->flags |= XEN_NETTXF_data_validated;
+
+ /* Optional extra info after the first request. */
+ if (skb_shinfo(skb)->gso_size) {
+@@ -658,7 +686,7 @@ static int xennet_start_xmit(struct sk_buff *skb, struct net_device *dev)
+ gso = (struct xen_netif_extra_info *)
+ RING_GET_REQUEST(&queue->tx, queue->tx.req_prod_pvt++);
+
+- tx->flags |= XEN_NETTXF_extra_info;
++ first_tx->flags |= XEN_NETTXF_extra_info;
+
+ gso->u.gso.size = skb_shinfo(skb)->gso_size;
+ gso->u.gso.type = (skb_shinfo(skb)->gso_type & SKB_GSO_TCPV6) ?
+@@ -672,19 +700,21 @@ static int xennet_start_xmit(struct sk_buff *skb, struct net_device *dev)
+ }
+
+ /* Requests for the rest of the linear area. */
+- tx = xennet_make_txreqs(queue, tx, skb, page, offset, len);
++ xennet_make_txreqs(&info, page, offset, len);
+
+ /* Requests for all the frags. */
+ for (i = 0; i < skb_shinfo(skb)->nr_frags; i++) {
+ skb_frag_t *frag = &skb_shinfo(skb)->frags[i];
+- tx = xennet_make_txreqs(queue, tx, skb,
+- skb_frag_page(frag), frag->page_offset,
++ xennet_make_txreqs(&info, skb_frag_page(frag),
++ frag->page_offset,
+ skb_frag_size(frag));
+ }
+
+ /* First request has the packet length. */
+ first_tx->size = skb->len;
+
++ xennet_mark_tx_pending(queue);
++
+ RING_PUSH_REQUESTS_AND_CHECK_NOTIFY(&queue->tx, notify);
+ if (notify)
+ notify_remote_via_irq(queue->tx_irq);
+@@ -742,7 +772,7 @@ static int xennet_get_extras(struct netfront_queue *queue,
+ RING_IDX rp)
+
+ {
+- struct xen_netif_extra_info *extra;
++ struct xen_netif_extra_info extra;
+ struct device *dev = &queue->info->netdev->dev;
+ RING_IDX cons = queue->rx.rsp_cons;
+ int err = 0;
+@@ -758,24 +788,22 @@ static int xennet_get_extras(struct netfront_queue *queue,
+ break;
+ }
+
+- extra = (struct xen_netif_extra_info *)
+- RING_GET_RESPONSE(&queue->rx, ++cons);
++ RING_COPY_RESPONSE(&queue->rx, ++cons, &extra);
+
+- if (unlikely(!extra->type ||
+- extra->type >= XEN_NETIF_EXTRA_TYPE_MAX)) {
++ if (unlikely(!extra.type ||
++ extra.type >= XEN_NETIF_EXTRA_TYPE_MAX)) {
+ if (net_ratelimit())
+ dev_warn(dev, "Invalid extra type: %d\n",
+- extra->type);
++ extra.type);
+ err = -EINVAL;
+ } else {
+- memcpy(&extras[extra->type - 1], extra,
+- sizeof(*extra));
++ extras[extra.type - 1] = extra;
+ }
+
+ skb = xennet_get_rx_skb(queue, cons);
+ ref = xennet_get_rx_ref(queue, cons);
+ xennet_move_rx_slot(queue, skb, ref);
+- } while (extra->flags & XEN_NETIF_EXTRA_FLAG_MORE);
++ } while (extra.flags & XEN_NETIF_EXTRA_FLAG_MORE);
+
+ queue->rx.rsp_cons = cons;
+ return err;
+@@ -785,7 +813,7 @@ static int xennet_get_responses(struct netfront_queue *queue,
+ struct netfront_rx_info *rinfo, RING_IDX rp,
+ struct sk_buff_head *list)
+ {
+- struct xen_netif_rx_response *rx = &rinfo->rx;
++ struct xen_netif_rx_response *rx = &rinfo->rx, rx_local;
+ struct xen_netif_extra_info *extras = rinfo->extras;
+ struct device *dev = &queue->info->netdev->dev;
+ RING_IDX cons = queue->rx.rsp_cons;
+@@ -843,7 +871,8 @@ next:
+ break;
+ }
+
+- rx = RING_GET_RESPONSE(&queue->rx, cons + slots);
++ RING_COPY_RESPONSE(&queue->rx, cons + slots, &rx_local);
++ rx = &rx_local;
+ skb = xennet_get_rx_skb(queue, cons + slots);
+ ref = xennet_get_rx_ref(queue, cons + slots);
+ slots++;
+@@ -898,10 +927,11 @@ static int xennet_fill_frags(struct netfront_queue *queue,
+ struct sk_buff *nskb;
+
+ while ((nskb = __skb_dequeue(list))) {
+- struct xen_netif_rx_response *rx =
+- RING_GET_RESPONSE(&queue->rx, ++cons);
++ struct xen_netif_rx_response rx;
+ skb_frag_t *nfrag = &skb_shinfo(nskb)->frags[0];
+
++ RING_COPY_RESPONSE(&queue->rx, ++cons, &rx);
++
+ if (skb_shinfo(skb)->nr_frags == MAX_SKB_FRAGS) {
+ unsigned int pull_to = NETFRONT_SKB_CB(skb)->pull_to;
+
+@@ -916,7 +946,7 @@ static int xennet_fill_frags(struct netfront_queue *queue,
+
+ skb_add_rx_frag(skb, skb_shinfo(skb)->nr_frags,
+ skb_frag_page(nfrag),
+- rx->offset, rx->status, PAGE_SIZE);
++ rx.offset, rx.status, PAGE_SIZE);
+
+ skb_shinfo(nskb)->nr_frags = 0;
+ kfree_skb(nskb);
+@@ -1009,12 +1039,19 @@ static int xennet_poll(struct napi_struct *napi, int budget)
+ skb_queue_head_init(&tmpq);
+
+ rp = queue->rx.sring->rsp_prod;
++ if (RING_RESPONSE_PROD_OVERFLOW(&queue->rx, rp)) {
++ dev_alert(&dev->dev, "Illegal number of responses %u\n",
++ rp - queue->rx.rsp_cons);
++ queue->info->broken = true;
++ spin_unlock(&queue->rx_lock);
++ return 0;
++ }
+ rmb(); /* Ensure we see queued responses up to 'rp'. */
+
+ i = queue->rx.rsp_cons;
+ work_done = 0;
+ while ((i != rp) && (work_done < budget)) {
+- memcpy(rx, RING_GET_RESPONSE(&queue->rx, i), sizeof(*rx));
++ RING_COPY_RESPONSE(&queue->rx, i, rx);
+ memset(extras, 0, sizeof(rinfo.extras));
+
+ err = xennet_get_responses(queue, &rinfo, rp, &tmpq);
+@@ -1138,17 +1175,18 @@ static void xennet_release_tx_bufs(struct netfront_queue *queue)
+
+ for (i = 0; i < NET_TX_RING_SIZE; i++) {
+ /* Skip over entries which are actually freelist references */
+- if (skb_entry_is_link(&queue->tx_skbs[i]))
++ if (!queue->tx_skbs[i])
+ continue;
+
+- skb = queue->tx_skbs[i].skb;
++ skb = queue->tx_skbs[i];
++ queue->tx_skbs[i] = NULL;
+ get_page(queue->grant_tx_page[i]);
+ gnttab_end_foreign_access(queue->grant_tx_ref[i],
+ GNTMAP_readonly,
+ (unsigned long)page_address(queue->grant_tx_page[i]));
+ queue->grant_tx_page[i] = NULL;
+ queue->grant_tx_ref[i] = GRANT_INVALID_REF;
+- add_id_to_freelist(&queue->tx_skb_freelist, queue->tx_skbs, i);
++ add_id_to_list(&queue->tx_skb_freelist, queue->tx_link, i);
+ dev_kfree_skb_irq(skb);
+ }
+ }
+@@ -1248,6 +1286,9 @@ static irqreturn_t xennet_tx_interrupt(int irq, void *dev_id)
+ struct netfront_queue *queue = dev_id;
+ unsigned long flags;
+
++ if (queue->info->broken)
++ return IRQ_HANDLED;
++
+ spin_lock_irqsave(&queue->tx_lock, flags);
+ xennet_tx_buf_gc(queue);
+ spin_unlock_irqrestore(&queue->tx_lock, flags);
+@@ -1260,6 +1301,9 @@ static irqreturn_t xennet_rx_interrupt(int irq, void *dev_id)
+ struct netfront_queue *queue = dev_id;
+ struct net_device *dev = queue->info->netdev;
+
++ if (queue->info->broken)
++ return IRQ_HANDLED;
++
+ if (likely(netif_carrier_ok(dev) &&
+ RING_HAS_UNCONSUMED_RESPONSES(&queue->rx)))
+ napi_schedule(&queue->napi);
+@@ -1281,6 +1325,10 @@ static void xennet_poll_controller(struct net_device *dev)
+ struct netfront_info *info = netdev_priv(dev);
+ unsigned int num_queues = dev->real_num_tx_queues;
+ unsigned int i;
++
++ if (info->broken)
++ return;
++
+ for (i = 0; i < num_queues; ++i)
+ xennet_interrupt(0, &info->queues[i]);
+ }
+@@ -1649,13 +1697,15 @@ static int xennet_init_queue(struct netfront_queue *queue)
+ snprintf(queue->name, sizeof(queue->name), "vif%s-q%u",
+ devid, queue->id);
+
+- /* Initialise tx_skbs as a free chain containing every entry. */
++ /* Initialise tx_skb_freelist as a free chain containing every entry. */
+ queue->tx_skb_freelist = 0;
++ queue->tx_pend_queue = TX_LINK_NONE;
+ for (i = 0; i < NET_TX_RING_SIZE; i++) {
+- skb_entry_set_link(&queue->tx_skbs[i], i+1);
++ queue->tx_link[i] = i + 1;
+ queue->grant_tx_ref[i] = GRANT_INVALID_REF;
+ queue->grant_tx_page[i] = NULL;
+ }
++ queue->tx_link[NET_TX_RING_SIZE - 1] = TX_LINK_NONE;
+
+ /* Clear out rx_skbs */
+ for (i = 0; i < NET_RX_RING_SIZE; i++) {
+@@ -1865,6 +1915,9 @@ static int talk_to_netback(struct xenbus_device *dev,
+ if (info->queues)
+ xennet_destroy_queues(info);
+
++ /* For the case of a reconnect reset the "broken" indicator. */
++ info->broken = false;
++
+ err = xennet_create_queues(info, &num_queues);
+ if (err < 0) {
+ xenbus_dev_fatal(dev, err, "creating queues");
+diff --git a/drivers/platform/x86/thinkpad_acpi.c b/drivers/platform/x86/thinkpad_acpi.c
+index 9c929b5ce58e2..b19a51d12651d 100644
+--- a/drivers/platform/x86/thinkpad_acpi.c
++++ b/drivers/platform/x86/thinkpad_acpi.c
+@@ -1169,15 +1169,6 @@ static int tpacpi_rfk_update_swstate(const struct tpacpi_rfk *tp_rfk)
+ return status;
+ }
+
+-/* Query FW and update rfkill sw state for all rfkill switches */
+-static void tpacpi_rfk_update_swstate_all(void)
+-{
+- unsigned int i;
+-
+- for (i = 0; i < TPACPI_RFK_SW_MAX; i++)
+- tpacpi_rfk_update_swstate(tpacpi_rfkill_switches[i]);
+-}
+-
+ /*
+ * Sync the HW-blocking state of all rfkill switches,
+ * do notice it causes the rfkill core to schedule uevents
+@@ -3029,9 +3020,6 @@ static void tpacpi_send_radiosw_update(void)
+ if (wlsw == TPACPI_RFK_RADIO_OFF)
+ tpacpi_rfk_update_hwblock_state(true);
+
+- /* Sync sw blocking state */
+- tpacpi_rfk_update_swstate_all();
+-
+ /* Sync hw blocking state last if it is hw-unblocked */
+ if (wlsw == TPACPI_RFK_RADIO_ON)
+ tpacpi_rfk_update_hwblock_state(false);
+diff --git a/drivers/scsi/mpt3sas/mpt3sas_scsih.c b/drivers/scsi/mpt3sas/mpt3sas_scsih.c
+index 58876b8a2e9f8..8063b97bf2e9b 100644
+--- a/drivers/scsi/mpt3sas/mpt3sas_scsih.c
++++ b/drivers/scsi/mpt3sas/mpt3sas_scsih.c
+@@ -2927,7 +2927,7 @@ _scsih_ublock_io_device(struct MPT3SAS_ADAPTER *ioc, u64 sas_address)
+
+ shost_for_each_device(sdev, ioc->shost) {
+ sas_device_priv_data = sdev->hostdata;
+- if (!sas_device_priv_data)
++ if (!sas_device_priv_data || !sas_device_priv_data->sas_target)
+ continue;
+ if (sas_device_priv_data->sas_target->sas_address
+ != sas_address)
+diff --git a/drivers/scsi/scsi_transport_iscsi.c b/drivers/scsi/scsi_transport_iscsi.c
+index aed17f958448d..acd8eb8c94cf7 100644
+--- a/drivers/scsi/scsi_transport_iscsi.c
++++ b/drivers/scsi/scsi_transport_iscsi.c
+@@ -1898,12 +1898,12 @@ static void session_recovery_timedout(struct work_struct *work)
+ }
+ spin_unlock_irqrestore(&session->lock, flags);
+
+- if (session->transport->session_recovery_timedout)
+- session->transport->session_recovery_timedout(session);
+-
+ ISCSI_DBG_TRANS_SESSION(session, "Unblocking SCSI target\n");
+ scsi_target_unblock(&session->dev, SDEV_TRANSPORT_OFFLINE);
+ ISCSI_DBG_TRANS_SESSION(session, "Completed unblocking SCSI target\n");
++
++ if (session->transport->session_recovery_timedout)
++ session->transport->session_recovery_timedout(session);
+ }
+
+ static void __iscsi_unblock_session(struct work_struct *work)
+diff --git a/drivers/staging/android/ion/ion.c b/drivers/staging/android/ion/ion.c
+index 806e9b30b9dc8..aac9b38b8c25c 100644
+--- a/drivers/staging/android/ion/ion.c
++++ b/drivers/staging/android/ion/ion.c
+@@ -489,6 +489,9 @@ static void *ion_buffer_kmap_get(struct ion_buffer *buffer)
+ void *vaddr;
+
+ if (buffer->kmap_cnt) {
++ if (buffer->kmap_cnt == INT_MAX)
++ return ERR_PTR(-EOVERFLOW);
++
+ buffer->kmap_cnt++;
+ return buffer->vaddr;
+ }
+@@ -509,6 +512,9 @@ static void *ion_handle_kmap_get(struct ion_handle *handle)
+ void *vaddr;
+
+ if (handle->kmap_cnt) {
++ if (handle->kmap_cnt == INT_MAX)
++ return ERR_PTR(-EOVERFLOW);
++
+ handle->kmap_cnt++;
+ return buffer->vaddr;
+ }
+diff --git a/drivers/staging/rtl8192e/rtl8192e/rtl_core.c b/drivers/staging/rtl8192e/rtl8192e/rtl_core.c
+index 0d6fe039ac19f..234a46ff4484a 100644
+--- a/drivers/staging/rtl8192e/rtl8192e/rtl_core.c
++++ b/drivers/staging/rtl8192e/rtl8192e/rtl_core.c
+@@ -2710,13 +2710,14 @@ static void _rtl92e_pci_disconnect(struct pci_dev *pdev)
+ free_irq(dev->irq, dev);
+ priv->irq = 0;
+ }
+- free_rtllib(dev);
+
+ if (dev->mem_start != 0) {
+ iounmap((void __iomem *)dev->mem_start);
+ release_mem_region(pci_resource_start(pdev, 1),
+ pci_resource_len(pdev, 1));
+ }
++
++ free_rtllib(dev);
+ } else {
+ priv = rtllib_priv(dev);
+ }
+diff --git a/drivers/thermal/thermal_core.c b/drivers/thermal/thermal_core.c
+index 4c2dc3a59eb59..5ef30ba3b73a4 100644
+--- a/drivers/thermal/thermal_core.c
++++ b/drivers/thermal/thermal_core.c
+@@ -601,6 +601,8 @@ static void thermal_zone_device_init(struct thermal_zone_device *tz)
+ {
+ struct thermal_instance *pos;
+ tz->temperature = THERMAL_TEMP_INVALID;
++ tz->prev_low_trip = -INT_MAX;
++ tz->prev_high_trip = INT_MAX;
+ list_for_each_entry(pos, &tz->thermal_instances, tz_node)
+ pos->initialized = false;
+ }
+diff --git a/drivers/tty/hvc/hvc_xen.c b/drivers/tty/hvc/hvc_xen.c
+index 5e87e4866bcb7..858c7b4b197cb 100644
+--- a/drivers/tty/hvc/hvc_xen.c
++++ b/drivers/tty/hvc/hvc_xen.c
+@@ -99,7 +99,11 @@ static int __write_console(struct xencons_info *xencons,
+ cons = intf->out_cons;
+ prod = intf->out_prod;
+ mb(); /* update queue values before going on */
+- BUG_ON((prod - cons) > sizeof(intf->out));
++
++ if ((prod - cons) > sizeof(intf->out)) {
++ pr_err_once("xencons: Illegal ring page indices");
++ return -EINVAL;
++ }
+
+ while ((sent < len) && ((prod - cons) < sizeof(intf->out)))
+ intf->out[MASK_XENCONS_IDX(prod++, intf->out)] = data[sent++];
+@@ -127,7 +131,10 @@ static int domU_write_console(uint32_t vtermno, const char *data, int len)
+ */
+ while (len) {
+ int sent = __write_console(cons, data, len);
+-
++
++ if (sent < 0)
++ return sent;
++
+ data += sent;
+ len -= sent;
+
+@@ -151,7 +158,11 @@ static int domU_read_console(uint32_t vtermno, char *buf, int len)
+ cons = intf->in_cons;
+ prod = intf->in_prod;
+ mb(); /* get pointers before reading ring */
+- BUG_ON((prod - cons) > sizeof(intf->in));
++
++ if ((prod - cons) > sizeof(intf->in)) {
++ pr_err_once("xencons: Illegal ring page indices");
++ return -EINVAL;
++ }
+
+ while (cons != prod && recv < len)
+ buf[recv++] = intf->in[MASK_XENCONS_IDX(cons++, intf->in)];
+diff --git a/drivers/tty/serial/amba-pl011.c b/drivers/tty/serial/amba-pl011.c
+index 6e27dee3876a4..e91bdd7d4c054 100644
+--- a/drivers/tty/serial/amba-pl011.c
++++ b/drivers/tty/serial/amba-pl011.c
+@@ -2702,6 +2702,7 @@ MODULE_DEVICE_TABLE(of, sbsa_uart_of_match);
+
+ static const struct acpi_device_id sbsa_uart_acpi_match[] = {
+ { "ARMH0011", 0 },
++ { "ARMHB000", 0 },
+ {},
+ };
+ MODULE_DEVICE_TABLE(acpi, sbsa_uart_acpi_match);
+diff --git a/drivers/tty/serial/msm_serial.c b/drivers/tty/serial/msm_serial.c
+index 9e6d44df3fab7..c284e61ed4fcc 100644
+--- a/drivers/tty/serial/msm_serial.c
++++ b/drivers/tty/serial/msm_serial.c
+@@ -611,6 +611,9 @@ static void msm_start_rx_dma(struct msm_port *msm_port)
+ u32 val;
+ int ret;
+
++ if (IS_ENABLED(CONFIG_CONSOLE_POLL))
++ return;
++
+ if (!dma->chan)
+ return;
+
+diff --git a/drivers/tty/serial/serial_core.c b/drivers/tty/serial/serial_core.c
+index bbba2174d6e75..e97961dc3622d 100644
+--- a/drivers/tty/serial/serial_core.c
++++ b/drivers/tty/serial/serial_core.c
+@@ -1522,6 +1522,7 @@ static void uart_tty_port_shutdown(struct tty_port *port)
+ {
+ struct uart_state *state = container_of(port, struct uart_state, port);
+ struct uart_port *uport = uart_port_check(state);
++ char *buf;
+
+ /*
+ * At this point, we stop accepting input. To do this, we
+@@ -1543,8 +1544,18 @@ static void uart_tty_port_shutdown(struct tty_port *port)
+ */
+ tty_port_set_suspended(port, 0);
+
+- uart_change_pm(state, UART_PM_STATE_OFF);
++ /*
++ * Free the transmit buffer.
++ */
++ spin_lock_irq(&uport->lock);
++ buf = state->xmit.buf;
++ state->xmit.buf = NULL;
++ spin_unlock_irq(&uport->lock);
+
++ if (buf)
++ free_page((unsigned long)buf);
++
++ uart_change_pm(state, UART_PM_STATE_OFF);
+ }
+
+ static void uart_wait_until_sent(struct tty_struct *tty, int timeout)
+diff --git a/drivers/usb/core/hub.c b/drivers/usb/core/hub.c
+index 92057a3f346f4..0abcf8bbb73fe 100644
+--- a/drivers/usb/core/hub.c
++++ b/drivers/usb/core/hub.c
+@@ -4460,8 +4460,6 @@ hub_port_init(struct usb_hub *hub, struct usb_device *udev, int port1,
+ if (oldspeed == USB_SPEED_LOW)
+ delay = HUB_LONG_RESET_TIME;
+
+- mutex_lock(hcd->address0_mutex);
+-
+ /* Reset the device; full speed may morph to high speed */
+ /* FIXME a USB 2.0 device may morph into SuperSpeed on reset. */
+ retval = hub_port_reset(hub, port1, udev, delay, false);
+@@ -4748,7 +4746,6 @@ fail:
+ hub_port_disable(hub, port1, 0);
+ update_devnum(udev, devnum); /* for disconnect processing */
+ }
+- mutex_unlock(hcd->address0_mutex);
+ return retval;
+ }
+
+@@ -4838,6 +4835,7 @@ static void hub_port_connect(struct usb_hub *hub, int port1, u16 portstatus,
+ struct usb_port *port_dev = hub->ports[port1 - 1];
+ struct usb_device *udev = port_dev->child;
+ static int unreliable_port = -1;
++ bool retry_locked;
+
+ /* Disconnect any existing devices under this port */
+ if (udev) {
+@@ -4893,7 +4891,11 @@ static void hub_port_connect(struct usb_hub *hub, int port1, u16 portstatus,
+ unit_load = 100;
+
+ status = 0;
++
+ for (i = 0; i < SET_CONFIG_TRIES; i++) {
++ usb_lock_port(port_dev);
++ mutex_lock(hcd->address0_mutex);
++ retry_locked = true;
+
+ /* reallocate for each attempt, since references
+ * to the previous one can escape in various ways
+@@ -4902,6 +4904,8 @@ static void hub_port_connect(struct usb_hub *hub, int port1, u16 portstatus,
+ if (!udev) {
+ dev_err(&port_dev->dev,
+ "couldn't allocate usb_device\n");
++ mutex_unlock(hcd->address0_mutex);
++ usb_unlock_port(port_dev);
+ goto done;
+ }
+
+@@ -4923,12 +4927,14 @@ static void hub_port_connect(struct usb_hub *hub, int port1, u16 portstatus,
+ }
+
+ /* reset (non-USB 3.0 devices) and get descriptor */
+- usb_lock_port(port_dev);
+ status = hub_port_init(hub, udev, port1, i);
+- usb_unlock_port(port_dev);
+ if (status < 0)
+ goto loop;
+
++ mutex_unlock(hcd->address0_mutex);
++ usb_unlock_port(port_dev);
++ retry_locked = false;
++
+ if (udev->quirks & USB_QUIRK_DELAY_INIT)
+ msleep(2000);
+
+@@ -5021,6 +5027,10 @@ loop:
+ usb_ep0_reinit(udev);
+ release_devnum(udev);
+ hub_free_dev(udev);
++ if (retry_locked) {
++ mutex_unlock(hcd->address0_mutex);
++ usb_unlock_port(port_dev);
++ }
+ usb_put_dev(udev);
+ if ((status == -ENOTCONN) || (status == -ENOTSUPP))
+ break;
+@@ -5572,6 +5582,8 @@ static int usb_reset_and_verify_device(struct usb_device *udev)
+ bos = udev->bos;
+ udev->bos = NULL;
+
++ mutex_lock(hcd->address0_mutex);
++
+ for (i = 0; i < SET_CONFIG_TRIES; ++i) {
+
+ /* ep0 maxpacket size may change; let the HCD know about it.
+@@ -5581,6 +5593,7 @@ static int usb_reset_and_verify_device(struct usb_device *udev)
+ if (ret >= 0 || ret == -ENOTCONN || ret == -ENODEV)
+ break;
+ }
++ mutex_unlock(hcd->address0_mutex);
+
+ if (ret < 0)
+ goto re_enumerate;
+diff --git a/drivers/usb/serial/option.c b/drivers/usb/serial/option.c
+index 9a0f8ee8cbd9f..502931f658a8e 100644
+--- a/drivers/usb/serial/option.c
++++ b/drivers/usb/serial/option.c
+@@ -1243,6 +1243,8 @@ static const struct usb_device_id option_ids[] = {
+ .driver_info = NCTRL(2) },
+ { USB_DEVICE(TELIT_VENDOR_ID, 0x9010), /* Telit SBL FN980 flashing device */
+ .driver_info = NCTRL(0) | ZLP },
++ { USB_DEVICE(TELIT_VENDOR_ID, 0x9200), /* Telit LE910S1 flashing device */
++ .driver_info = NCTRL(0) | ZLP },
+ { USB_DEVICE_AND_INTERFACE_INFO(ZTE_VENDOR_ID, ZTE_PRODUCT_MF622, 0xff, 0xff, 0xff) }, /* ZTE WCDMA products */
+ { USB_DEVICE_AND_INTERFACE_INFO(ZTE_VENDOR_ID, 0x0002, 0xff, 0xff, 0xff),
+ .driver_info = RSVD(1) },
+@@ -2072,6 +2074,9 @@ static const struct usb_device_id option_ids[] = {
+ { USB_DEVICE_AND_INTERFACE_INFO(0x2cb7, 0x010b, 0xff, 0xff, 0x30) }, /* Fibocom FG150 Diag */
+ { USB_DEVICE_AND_INTERFACE_INFO(0x2cb7, 0x010b, 0xff, 0, 0) }, /* Fibocom FG150 AT */
+ { USB_DEVICE_INTERFACE_CLASS(0x2cb7, 0x01a0, 0xff) }, /* Fibocom NL668-AM/NL652-EU (laptop MBIM) */
++ { USB_DEVICE_INTERFACE_CLASS(0x2cb7, 0x01a2, 0xff) }, /* Fibocom FM101-GL (laptop MBIM) */
++ { USB_DEVICE_INTERFACE_CLASS(0x2cb7, 0x01a4, 0xff), /* Fibocom FM101-GL (laptop MBIM) */
++ .driver_info = RSVD(4) },
+ { USB_DEVICE_INTERFACE_CLASS(0x2df3, 0x9d03, 0xff) }, /* LongSung M5710 */
+ { USB_DEVICE_INTERFACE_CLASS(0x305a, 0x1404, 0xff) }, /* GosunCn GM500 RNDIS */
+ { USB_DEVICE_INTERFACE_CLASS(0x305a, 0x1405, 0xff) }, /* GosunCn GM500 MBIM */
+diff --git a/drivers/vhost/vsock.c b/drivers/vhost/vsock.c
+index 2ac966400c428..e282e8174a5d9 100644
+--- a/drivers/vhost/vsock.c
++++ b/drivers/vhost/vsock.c
+@@ -406,7 +406,7 @@ static void vhost_vsock_handle_tx_kick(struct vhost_work *work)
+ else
+ virtio_transport_free_pkt(pkt);
+
+- vhost_add_used(vq, head, sizeof(pkt->hdr) + len);
++ vhost_add_used(vq, head, 0);
+ added = true;
+ }
+
+diff --git a/drivers/video/console/vgacon.c b/drivers/video/console/vgacon.c
+index cb9b879631293..6c5c7d45d9f67 100644
+--- a/drivers/video/console/vgacon.c
++++ b/drivers/video/console/vgacon.c
+@@ -420,11 +420,17 @@ static void vgacon_init(struct vc_data *c, int init)
+ struct uni_pagedir *p;
+
+ /*
+- * We cannot be loaded as a module, therefore init is always 1,
+- * but vgacon_init can be called more than once, and init will
+- * not be 1.
++ * We cannot be loaded as a module, therefore init will be 1
++ * if we are the default console, however if we are a fallback
++ * console, for example if fbcon has failed registration, then
++ * init will be 0, so we need to make sure our boot parameters
++ * have been copied to the console structure for vgacon_resize
++ * ultimately called by vc_resize. Any subsequent calls to
++ * vgacon_init init will have init set to 0 too.
+ */
+ c->vc_can_do_color = vga_can_do_color;
++ c->vc_scan_lines = vga_scan_lines;
++ c->vc_font.height = c->vc_cell_height = vga_video_font_height;
+
+ /* set dimensions manually if init != 0 since vc_resize() will fail */
+ if (init) {
+@@ -433,8 +439,6 @@ static void vgacon_init(struct vc_data *c, int init)
+ } else
+ vc_resize(c, vga_video_num_columns, vga_video_num_lines);
+
+- c->vc_scan_lines = vga_scan_lines;
+- c->vc_font.height = c->vc_cell_height = vga_video_font_height;
+ c->vc_complement_mask = 0x7700;
+ if (vga_512_chars)
+ c->vc_hi_font_mask = 0x0800;
+diff --git a/drivers/xen/xenbus/xenbus_probe.c b/drivers/xen/xenbus/xenbus_probe.c
+index ba7590d75985e..d7f886dd7b550 100644
+--- a/drivers/xen/xenbus/xenbus_probe.c
++++ b/drivers/xen/xenbus/xenbus_probe.c
+@@ -764,7 +764,7 @@ static struct notifier_block xenbus_resume_nb = {
+
+ static int __init xenbus_init(void)
+ {
+- int err = 0;
++ int err;
+ uint64_t v = 0;
+ xen_store_domain_type = XS_UNKNOWN;
+
+@@ -804,6 +804,29 @@ static int __init xenbus_init(void)
+ err = hvm_get_parameter(HVM_PARAM_STORE_PFN, &v);
+ if (err)
+ goto out_error;
++ /*
++ * Uninitialized hvm_params are zero and return no error.
++ * Although it is theoretically possible to have
++ * HVM_PARAM_STORE_PFN set to zero on purpose, in reality it is
++ * not zero when valid. If zero, it means that Xenstore hasn't
++ * been properly initialized. Instead of attempting to map a
++ * wrong guest physical address return error.
++ *
++ * Also recognize all bits set as an invalid value.
++ */
++ if (!v || !~v) {
++ err = -ENOENT;
++ goto out_error;
++ }
++ /* Avoid truncation on 32-bit. */
++#if BITS_PER_LONG == 32
++ if (v > ULONG_MAX) {
++ pr_err("%s: cannot handle HVM_PARAM_STORE_PFN=%llx > ULONG_MAX\n",
++ __func__, v);
++ err = -EINVAL;
++ goto out_error;
++ }
++#endif
+ xen_store_gfn = (unsigned long)v;
+ xen_store_interface =
+ xen_remap(xen_store_gfn << XEN_PAGE_SHIFT,
+@@ -832,8 +855,10 @@ static int __init xenbus_init(void)
+ */
+ proc_mkdir("xen", NULL);
+ #endif
++ return 0;
+
+ out_error:
++ xen_store_domain_type = XS_UNKNOWN;
+ return err;
+ }
+
+diff --git a/fs/file.c b/fs/file.c
+index 82d3f925bab39..0e31a66207e86 100644
+--- a/fs/file.c
++++ b/fs/file.c
+@@ -692,7 +692,7 @@ void do_close_on_exec(struct files_struct *files)
+ spin_unlock(&files->file_lock);
+ }
+
+-static struct file *__fget(unsigned int fd, fmode_t mask)
++static struct file *__fget(unsigned int fd, fmode_t mask, unsigned int refs)
+ {
+ struct files_struct *files = current->files;
+ struct file *file;
+@@ -707,23 +707,32 @@ loop:
+ */
+ if (file->f_mode & mask)
+ file = NULL;
+- else if (!get_file_rcu(file))
++ else if (!get_file_rcu_many(file, refs))
+ goto loop;
++ else if (__fcheck_files(files, fd) != file) {
++ fput_many(file, refs);
++ goto loop;
++ }
+ }
+ rcu_read_unlock();
+
+ return file;
+ }
+
++struct file *fget_many(unsigned int fd, unsigned int refs)
++{
++ return __fget(fd, FMODE_PATH, refs);
++}
++
+ struct file *fget(unsigned int fd)
+ {
+- return __fget(fd, FMODE_PATH);
++ return __fget(fd, FMODE_PATH, 1);
+ }
+ EXPORT_SYMBOL(fget);
+
+ struct file *fget_raw(unsigned int fd)
+ {
+- return __fget(fd, 0);
++ return __fget(fd, 0, 1);
+ }
+ EXPORT_SYMBOL(fget_raw);
+
+@@ -754,7 +763,7 @@ static unsigned long __fget_light(unsigned int fd, fmode_t mask)
+ return 0;
+ return (unsigned long)file;
+ } else {
+- file = __fget(fd, mask);
++ file = __fget(fd, mask, 1);
+ if (!file)
+ return 0;
+ return FDPUT_FPUT | (unsigned long)file;
+diff --git a/fs/file_table.c b/fs/file_table.c
+index ad17e05ebf95f..747bb386b4466 100644
+--- a/fs/file_table.c
++++ b/fs/file_table.c
+@@ -261,9 +261,9 @@ void flush_delayed_fput(void)
+
+ static DECLARE_DELAYED_WORK(delayed_fput_work, delayed_fput);
+
+-void fput(struct file *file)
++void fput_many(struct file *file, unsigned int refs)
+ {
+- if (atomic_long_dec_and_test(&file->f_count)) {
++ if (atomic_long_sub_and_test(refs, &file->f_count)) {
+ struct task_struct *task = current;
+
+ if (likely(!in_interrupt() && !(task->flags & PF_KTHREAD))) {
+@@ -282,6 +282,11 @@ void fput(struct file *file)
+ }
+ }
+
++void fput(struct file *file)
++{
++ fput_many(file, 1);
++}
++
+ /*
+ * synchronous analog of fput(); for kernel threads that might be needed
+ * in some umount() (and thus can't use flush_delayed_fput() without
+diff --git a/fs/fuse/dev.c b/fs/fuse/dev.c
+index d21e41735805d..585c52dbb2e39 100644
+--- a/fs/fuse/dev.c
++++ b/fs/fuse/dev.c
+@@ -903,6 +903,12 @@ static int fuse_try_move_page(struct fuse_copy_state *cs, struct page **pagep)
+ if (!(buf->flags & PIPE_BUF_FLAG_LRU))
+ lru_cache_add_file(newpage);
+
++ /*
++ * Release while we have extra ref on stolen page. Otherwise
++ * anon_pipe_buf_release() might think the page can be reused.
++ */
++ pipe_buf_release(cs->pipe, buf);
++
+ err = 0;
+ spin_lock(&cs->req->waitq.lock);
+ if (test_bit(FR_ABORTED, &cs->req->flags))
+@@ -2040,8 +2046,12 @@ static ssize_t fuse_dev_splice_write(struct pipe_inode_info *pipe,
+
+ pipe_lock(pipe);
+ out_free:
+- for (idx = 0; idx < nbuf; idx++)
+- pipe_buf_release(pipe, &bufs[idx]);
++ for (idx = 0; idx < nbuf; idx++) {
++ struct pipe_buffer *buf = &bufs[idx];
++
++ if (buf->ops)
++ pipe_buf_release(pipe, buf);
++ }
+ pipe_unlock(pipe);
+
+ kfree(bufs);
+diff --git a/fs/nfs/nfs42proc.c b/fs/nfs/nfs42proc.c
+index 7efb9e0e9f25b..3038cefff15cc 100644
+--- a/fs/nfs/nfs42proc.c
++++ b/fs/nfs/nfs42proc.c
+@@ -181,8 +181,9 @@ static ssize_t _nfs42_proc_copy(struct file *src,
+ return status;
+ }
+
+- truncate_pagecache_range(dst_inode, pos_dst,
+- pos_dst + res->write_res.count);
++ WARN_ON_ONCE(invalidate_inode_pages2_range(dst_inode->i_mapping,
++ pos_dst >> PAGE_SHIFT,
++ (pos_dst + res->write_res.count - 1) >> PAGE_SHIFT));
+
+ return res->write_res.count;
+ }
+diff --git a/fs/nfs/nfs42xdr.c b/fs/nfs/nfs42xdr.c
+index 8b2605882a201..335c34f0d1303 100644
+--- a/fs/nfs/nfs42xdr.c
++++ b/fs/nfs/nfs42xdr.c
+@@ -593,8 +593,7 @@ static int nfs4_xdr_dec_clone(struct rpc_rqst *rqstp,
+ status = decode_clone(xdr);
+ if (status)
+ goto out;
+- status = decode_getfattr(xdr, res->dst_fattr, res->server);
+-
++ decode_getfattr(xdr, res->dst_fattr, res->server);
+ out:
+ res->rpc_status = status;
+ return status;
+diff --git a/fs/proc/vmcore.c b/fs/proc/vmcore.c
+index 8e8012769f3e9..e8b40835770cf 100644
+--- a/fs/proc/vmcore.c
++++ b/fs/proc/vmcore.c
+@@ -105,14 +105,19 @@ static ssize_t read_from_oldmem(char *buf, size_t count,
+ nr_bytes = count;
+
+ /* If pfn is not ram, return zeros for sparse dump files */
+- if (pfn_is_ram(pfn) == 0)
+- memset(buf, 0, nr_bytes);
+- else {
++ if (pfn_is_ram(pfn) == 0) {
++ tmp = 0;
++ if (!userbuf)
++ memset(buf, 0, nr_bytes);
++ else if (clear_user(buf, nr_bytes))
++ tmp = -EFAULT;
++ } else {
+ tmp = copy_oldmem_page(pfn, buf, nr_bytes,
+ offset, userbuf);
+- if (tmp < 0)
+- return tmp;
+ }
++ if (tmp < 0)
++ return tmp;
++
+ *ppos += nr_bytes;
+ count -= nr_bytes;
+ buf += nr_bytes;
+diff --git a/include/asm-generic/tlb.h b/include/asm-generic/tlb.h
+index c6d6671876080..e9851100c0f7e 100644
+--- a/include/asm-generic/tlb.h
++++ b/include/asm-generic/tlb.h
+@@ -123,6 +123,8 @@ void tlb_finish_mmu(struct mmu_gather *tlb, unsigned long start,
+ unsigned long end);
+ extern bool __tlb_remove_page_size(struct mmu_gather *tlb, struct page *page,
+ int page_size);
++void tlb_flush_pmd_range(struct mmu_gather *tlb, unsigned long address,
++ unsigned long size);
+
+ static inline void __tlb_adjust_range(struct mmu_gather *tlb,
+ unsigned long address)
+diff --git a/include/linux/file.h b/include/linux/file.h
+index 7444f5feda125..d5baf7194fb0b 100644
+--- a/include/linux/file.h
++++ b/include/linux/file.h
+@@ -12,6 +12,7 @@
+ struct file;
+
+ extern void fput(struct file *);
++extern void fput_many(struct file *, unsigned int);
+
+ struct file_operations;
+ struct vfsmount;
+@@ -40,6 +41,7 @@ static inline void fdput(struct fd fd)
+ }
+
+ extern struct file *fget(unsigned int fd);
++extern struct file *fget_many(unsigned int fd, unsigned int refs);
+ extern struct file *fget_raw(unsigned int fd);
+ extern unsigned long __fdget(unsigned int fd);
+ extern unsigned long __fdget_raw(unsigned int fd);
+diff --git a/include/linux/fs.h b/include/linux/fs.h
+index b8d65e0ab9341..9e4a75005280f 100644
+--- a/include/linux/fs.h
++++ b/include/linux/fs.h
+@@ -939,7 +939,9 @@ static inline struct file *get_file(struct file *f)
+ atomic_long_inc(&f->f_count);
+ return f;
+ }
+-#define get_file_rcu(x) atomic_long_inc_not_zero(&(x)->f_count)
++#define get_file_rcu_many(x, cnt) \
++ atomic_long_add_unless(&(x)->f_count, (cnt), 0)
++#define get_file_rcu(x) get_file_rcu_many((x), 1)
+ #define fput_atomic(x) atomic_long_add_unless(&(x)->f_count, -1, 1)
+ #define file_count(x) atomic_long_read(&(x)->f_count)
+
+diff --git a/include/linux/ipc_namespace.h b/include/linux/ipc_namespace.h
+index 848e5796400e7..325e7cbb3d32d 100644
+--- a/include/linux/ipc_namespace.h
++++ b/include/linux/ipc_namespace.h
+@@ -122,6 +122,16 @@ static inline struct ipc_namespace *get_ipc_ns(struct ipc_namespace *ns)
+ return ns;
+ }
+
++static inline struct ipc_namespace *get_ipc_ns_not_zero(struct ipc_namespace *ns)
++{
++ if (ns) {
++ if (atomic_inc_not_zero(&ns->count))
++ return ns;
++ }
++
++ return NULL;
++}
++
+ extern void put_ipc_ns(struct ipc_namespace *ns);
+ #else
+ static inline struct ipc_namespace *copy_ipcs(unsigned long flags,
+@@ -138,6 +148,11 @@ static inline struct ipc_namespace *get_ipc_ns(struct ipc_namespace *ns)
+ return ns;
+ }
+
++static inline struct ipc_namespace *get_ipc_ns_not_zero(struct ipc_namespace *ns)
++{
++ return ns;
++}
++
+ static inline void put_ipc_ns(struct ipc_namespace *ns)
+ {
+ }
+diff --git a/include/linux/kprobes.h b/include/linux/kprobes.h
+index 4db62045f01ae..006ef813959b4 100644
+--- a/include/linux/kprobes.h
++++ b/include/linux/kprobes.h
+@@ -192,6 +192,8 @@ struct kretprobe {
+ raw_spinlock_t lock;
+ };
+
++#define KRETPROBE_MAX_DATA_SIZE 4096
++
+ struct kretprobe_instance {
+ struct hlist_node hlist;
+ struct kretprobe *rp;
+diff --git a/include/linux/sched.h b/include/linux/sched.h
+index f094882822a63..a6e658ba41c12 100644
+--- a/include/linux/sched.h
++++ b/include/linux/sched.h
+@@ -3106,7 +3106,7 @@ static inline int thread_group_empty(struct task_struct *p)
+ * Protects ->fs, ->files, ->mm, ->group_info, ->comm, keyring
+ * subscriptions and synchronises with wait4(). Also used in procfs. Also
+ * pins the final release of task.io_context. Also protects ->cpuset and
+- * ->cgroup.subsys[]. And ->vfork_done.
++ * ->cgroup.subsys[]. And ->vfork_done. And ->sysvshm.shm_clist.
+ *
+ * Nests both inside and outside of read_lock(&tasklist_lock).
+ * It must not be nested with write_lock_irq(&tasklist_lock),
+diff --git a/include/linux/shm.h b/include/linux/shm.h
+index 04e8818296251..9c8b942bd67f0 100644
+--- a/include/linux/shm.h
++++ b/include/linux/shm.h
+@@ -19,9 +19,18 @@ struct shmid_kernel /* private to the kernel */
+ pid_t shm_lprid;
+ struct user_struct *mlock_user;
+
+- /* The task created the shm object. NULL if the task is dead. */
++ /*
++ * The task created the shm object, for
++ * task_lock(shp->shm_creator)
++ */
+ struct task_struct *shm_creator;
+- struct list_head shm_clist; /* list by creator */
++
++ /*
++ * List by creator. task_lock(->shm_creator) required for read/write.
++ * If list_empty(), then the creator is dead already.
++ */
++ struct list_head shm_clist;
++ struct ipc_namespace *ns;
+ };
+
+ /* shm_mode upper byte flags */
+diff --git a/include/linux/siphash.h b/include/linux/siphash.h
+index bf21591a9e5e6..0cda61855d907 100644
+--- a/include/linux/siphash.h
++++ b/include/linux/siphash.h
+@@ -27,9 +27,7 @@ static inline bool siphash_key_is_zero(const siphash_key_t *key)
+ }
+
+ 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);
+@@ -82,10 +80,9 @@ static inline u64 ___siphash_aligned(const __le64 *data, size_t len,
+ 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))
++ if (IS_ENABLED(CONFIG_HAVE_EFFICIENT_UNALIGNED_ACCESS) ||
++ !IS_ALIGNED((unsigned long)data, SIPHASH_ALIGNMENT))
+ return __siphash_unaligned(data, len, key);
+-#endif
+ return ___siphash_aligned(data, len, key);
+ }
+
+@@ -96,10 +93,8 @@ typedef struct {
+
+ 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);
+@@ -135,10 +130,9 @@ static inline u32 ___hsiphash_aligned(const __le32 *data, size_t len,
+ 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))
++ if (IS_ENABLED(CONFIG_HAVE_EFFICIENT_UNALIGNED_ACCESS) ||
++ !IS_ALIGNED((unsigned long)data, HSIPHASH_ALIGNMENT))
+ return __hsiphash_unaligned(data, len, key);
+-#endif
+ return ___hsiphash_aligned(data, len, key);
+ }
+
+diff --git a/include/net/nfc/nci_core.h b/include/net/nfc/nci_core.h
+index 2ba054fe14ac1..3bcce1523894e 100644
+--- a/include/net/nfc/nci_core.h
++++ b/include/net/nfc/nci_core.h
+@@ -42,6 +42,7 @@ enum nci_flag {
+ NCI_UP,
+ NCI_DATA_EXCHANGE,
+ NCI_DATA_EXCHANGE_TO,
++ NCI_UNREG,
+ };
+
+ /* NCI device states */
+diff --git a/include/net/nl802154.h b/include/net/nl802154.h
+index ddcee128f5d9a..145acb8f25095 100644
+--- a/include/net/nl802154.h
++++ b/include/net/nl802154.h
+@@ -19,6 +19,8 @@
+ *
+ */
+
++#include <linux/types.h>
++
+ #define NL802154_GENL_NAME "nl802154"
+
+ enum nl802154_commands {
+@@ -150,10 +152,9 @@ enum nl802154_attrs {
+ };
+
+ enum nl802154_iftype {
+- /* for backwards compatibility TODO */
+- NL802154_IFTYPE_UNSPEC = -1,
++ NL802154_IFTYPE_UNSPEC = (~(__u32)0),
+
+- NL802154_IFTYPE_NODE,
++ NL802154_IFTYPE_NODE = 0,
+ NL802154_IFTYPE_MONITOR,
+ NL802154_IFTYPE_COORD,
+
+diff --git a/include/xen/interface/io/ring.h b/include/xen/interface/io/ring.h
+index 21f4fbd55e48e..276b81cf0daf5 100644
+--- a/include/xen/interface/io/ring.h
++++ b/include/xen/interface/io/ring.h
+@@ -24,82 +24,79 @@ typedef unsigned int RING_IDX;
+ * A ring contains as many entries as will fit, rounded down to the nearest
+ * power of two (so we can mask with (size-1) to loop around).
+ */
+-#define __CONST_RING_SIZE(_s, _sz) \
+- (__RD32(((_sz) - offsetof(struct _s##_sring, ring)) / \
+- sizeof(((struct _s##_sring *)0)->ring[0])))
+-
++#define __CONST_RING_SIZE(_s, _sz) \
++ (__RD32(((_sz) - offsetof(struct _s##_sring, ring)) / \
++ sizeof(((struct _s##_sring *)0)->ring[0])))
+ /*
+ * The same for passing in an actual pointer instead of a name tag.
+ */
+-#define __RING_SIZE(_s, _sz) \
+- (__RD32(((_sz) - (long)&(_s)->ring + (long)(_s)) / sizeof((_s)->ring[0])))
++#define __RING_SIZE(_s, _sz) \
++ (__RD32(((_sz) - (long)(_s)->ring + (long)(_s)) / sizeof((_s)->ring[0])))
+
+ /*
+ * Macros to make the correct C datatypes for a new kind of ring.
+ *
+ * To make a new ring datatype, you need to have two message structures,
+- * let's say struct request, and struct response already defined.
++ * let's say request_t, and response_t already defined.
+ *
+ * In a header where you want the ring datatype declared, you then do:
+ *
+- * DEFINE_RING_TYPES(mytag, struct request, struct response);
++ * DEFINE_RING_TYPES(mytag, request_t, response_t);
+ *
+ * These expand out to give you a set of types, as you can see below.
+ * The most important of these are:
+ *
+- * struct mytag_sring - The shared ring.
+- * struct mytag_front_ring - The 'front' half of the ring.
+- * struct mytag_back_ring - The 'back' half of the ring.
++ * mytag_sring_t - The shared ring.
++ * mytag_front_ring_t - The 'front' half of the ring.
++ * mytag_back_ring_t - The 'back' half of the ring.
+ *
+ * To initialize a ring in your code you need to know the location and size
+ * of the shared memory area (PAGE_SIZE, for instance). To initialise
+ * the front half:
+ *
+- * struct mytag_front_ring front_ring;
+- * SHARED_RING_INIT((struct mytag_sring *)shared_page);
+- * FRONT_RING_INIT(&front_ring, (struct mytag_sring *)shared_page,
+- * PAGE_SIZE);
++ * mytag_front_ring_t front_ring;
++ * SHARED_RING_INIT((mytag_sring_t *)shared_page);
++ * FRONT_RING_INIT(&front_ring, (mytag_sring_t *)shared_page, PAGE_SIZE);
+ *
+ * Initializing the back follows similarly (note that only the front
+ * initializes the shared ring):
+ *
+- * struct mytag_back_ring back_ring;
+- * BACK_RING_INIT(&back_ring, (struct mytag_sring *)shared_page,
+- * PAGE_SIZE);
++ * mytag_back_ring_t back_ring;
++ * BACK_RING_INIT(&back_ring, (mytag_sring_t *)shared_page, PAGE_SIZE);
+ */
+
+-#define DEFINE_RING_TYPES(__name, __req_t, __rsp_t) \
+- \
+-/* Shared ring entry */ \
+-union __name##_sring_entry { \
+- __req_t req; \
+- __rsp_t rsp; \
+-}; \
+- \
+-/* Shared ring page */ \
+-struct __name##_sring { \
+- RING_IDX req_prod, req_event; \
+- RING_IDX rsp_prod, rsp_event; \
+- uint8_t pad[48]; \
+- union __name##_sring_entry ring[1]; /* variable-length */ \
+-}; \
+- \
+-/* "Front" end's private variables */ \
+-struct __name##_front_ring { \
+- RING_IDX req_prod_pvt; \
+- RING_IDX rsp_cons; \
+- unsigned int nr_ents; \
+- struct __name##_sring *sring; \
+-}; \
+- \
+-/* "Back" end's private variables */ \
+-struct __name##_back_ring { \
+- RING_IDX rsp_prod_pvt; \
+- RING_IDX req_cons; \
+- unsigned int nr_ents; \
+- struct __name##_sring *sring; \
+-};
+-
++#define DEFINE_RING_TYPES(__name, __req_t, __rsp_t) \
++ \
++/* Shared ring entry */ \
++union __name##_sring_entry { \
++ __req_t req; \
++ __rsp_t rsp; \
++}; \
++ \
++/* Shared ring page */ \
++struct __name##_sring { \
++ RING_IDX req_prod, req_event; \
++ RING_IDX rsp_prod, rsp_event; \
++ uint8_t __pad[48]; \
++ union __name##_sring_entry ring[1]; /* variable-length */ \
++}; \
++ \
++/* "Front" end's private variables */ \
++struct __name##_front_ring { \
++ RING_IDX req_prod_pvt; \
++ RING_IDX rsp_cons; \
++ unsigned int nr_ents; \
++ struct __name##_sring *sring; \
++}; \
++ \
++/* "Back" end's private variables */ \
++struct __name##_back_ring { \
++ RING_IDX rsp_prod_pvt; \
++ RING_IDX req_cons; \
++ unsigned int nr_ents; \
++ struct __name##_sring *sring; \
++}; \
++ \
+ /*
+ * Macros for manipulating rings.
+ *
+@@ -116,105 +113,99 @@ struct __name##_back_ring { \
+ */
+
+ /* Initialising empty rings */
+-#define SHARED_RING_INIT(_s) do { \
+- (_s)->req_prod = (_s)->rsp_prod = 0; \
+- (_s)->req_event = (_s)->rsp_event = 1; \
+- memset((_s)->pad, 0, sizeof((_s)->pad)); \
++#define SHARED_RING_INIT(_s) do { \
++ (_s)->req_prod = (_s)->rsp_prod = 0; \
++ (_s)->req_event = (_s)->rsp_event = 1; \
++ (void)memset((_s)->__pad, 0, sizeof((_s)->__pad)); \
+ } while(0)
+
+-#define FRONT_RING_INIT(_r, _s, __size) do { \
+- (_r)->req_prod_pvt = 0; \
+- (_r)->rsp_cons = 0; \
+- (_r)->nr_ents = __RING_SIZE(_s, __size); \
+- (_r)->sring = (_s); \
++#define FRONT_RING_ATTACH(_r, _s, _i, __size) do { \
++ (_r)->req_prod_pvt = (_i); \
++ (_r)->rsp_cons = (_i); \
++ (_r)->nr_ents = __RING_SIZE(_s, __size); \
++ (_r)->sring = (_s); \
+ } while (0)
+
+-#define BACK_RING_INIT(_r, _s, __size) do { \
+- (_r)->rsp_prod_pvt = 0; \
+- (_r)->req_cons = 0; \
+- (_r)->nr_ents = __RING_SIZE(_s, __size); \
+- (_r)->sring = (_s); \
+-} while (0)
++#define FRONT_RING_INIT(_r, _s, __size) FRONT_RING_ATTACH(_r, _s, 0, __size)
+
+-/* Initialize to existing shared indexes -- for recovery */
+-#define FRONT_RING_ATTACH(_r, _s, __size) do { \
+- (_r)->sring = (_s); \
+- (_r)->req_prod_pvt = (_s)->req_prod; \
+- (_r)->rsp_cons = (_s)->rsp_prod; \
+- (_r)->nr_ents = __RING_SIZE(_s, __size); \
++#define BACK_RING_ATTACH(_r, _s, _i, __size) do { \
++ (_r)->rsp_prod_pvt = (_i); \
++ (_r)->req_cons = (_i); \
++ (_r)->nr_ents = __RING_SIZE(_s, __size); \
++ (_r)->sring = (_s); \
+ } while (0)
+
+-#define BACK_RING_ATTACH(_r, _s, __size) do { \
+- (_r)->sring = (_s); \
+- (_r)->rsp_prod_pvt = (_s)->rsp_prod; \
+- (_r)->req_cons = (_s)->req_prod; \
+- (_r)->nr_ents = __RING_SIZE(_s, __size); \
+-} while (0)
++#define BACK_RING_INIT(_r, _s, __size) BACK_RING_ATTACH(_r, _s, 0, __size)
+
+ /* How big is this ring? */
+-#define RING_SIZE(_r) \
++#define RING_SIZE(_r) \
+ ((_r)->nr_ents)
+
+ /* Number of free requests (for use on front side only). */
+-#define RING_FREE_REQUESTS(_r) \
++#define RING_FREE_REQUESTS(_r) \
+ (RING_SIZE(_r) - ((_r)->req_prod_pvt - (_r)->rsp_cons))
+
+ /* Test if there is an empty slot available on the front ring.
+ * (This is only meaningful from the front. )
+ */
+-#define RING_FULL(_r) \
++#define RING_FULL(_r) \
+ (RING_FREE_REQUESTS(_r) == 0)
+
+ /* Test if there are outstanding messages to be processed on a ring. */
+-#define RING_HAS_UNCONSUMED_RESPONSES(_r) \
++#define RING_HAS_UNCONSUMED_RESPONSES(_r) \
+ ((_r)->sring->rsp_prod - (_r)->rsp_cons)
+
+-#define RING_HAS_UNCONSUMED_REQUESTS(_r) \
+- ({ \
+- unsigned int req = (_r)->sring->req_prod - (_r)->req_cons; \
+- unsigned int rsp = RING_SIZE(_r) - \
+- ((_r)->req_cons - (_r)->rsp_prod_pvt); \
+- req < rsp ? req : rsp; \
+- })
++#define RING_HAS_UNCONSUMED_REQUESTS(_r) ({ \
++ unsigned int req = (_r)->sring->req_prod - (_r)->req_cons; \
++ unsigned int rsp = RING_SIZE(_r) - \
++ ((_r)->req_cons - (_r)->rsp_prod_pvt); \
++ req < rsp ? req : rsp; \
++})
+
+ /* Direct access to individual ring elements, by index. */
+-#define RING_GET_REQUEST(_r, _idx) \
++#define RING_GET_REQUEST(_r, _idx) \
+ (&((_r)->sring->ring[((_idx) & (RING_SIZE(_r) - 1))].req))
+
++#define RING_GET_RESPONSE(_r, _idx) \
++ (&((_r)->sring->ring[((_idx) & (RING_SIZE(_r) - 1))].rsp))
++
+ /*
+- * Get a local copy of a request.
++ * Get a local copy of a request/response.
+ *
+- * Use this in preference to RING_GET_REQUEST() so all processing is
++ * Use this in preference to RING_GET_{REQUEST,RESPONSE}() so all processing is
+ * done on a local copy that cannot be modified by the other end.
+ *
+ * Note that https://gcc.gnu.org/bugzilla/show_bug.cgi?id=58145 may cause this
+- * to be ineffective where _req is a struct which consists of only bitfields.
++ * to be ineffective where dest is a struct which consists of only bitfields.
+ */
+-#define RING_COPY_REQUEST(_r, _idx, _req) do { \
+- /* Use volatile to force the copy into _req. */ \
+- *(_req) = *(volatile typeof(_req))RING_GET_REQUEST(_r, _idx); \
++#define RING_COPY_(type, r, idx, dest) do { \
++ /* Use volatile to force the copy into dest. */ \
++ *(dest) = *(volatile typeof(dest))RING_GET_##type(r, idx); \
+ } while (0)
+
+-#define RING_GET_RESPONSE(_r, _idx) \
+- (&((_r)->sring->ring[((_idx) & (RING_SIZE(_r) - 1))].rsp))
++#define RING_COPY_REQUEST(r, idx, req) RING_COPY_(REQUEST, r, idx, req)
++#define RING_COPY_RESPONSE(r, idx, rsp) RING_COPY_(RESPONSE, r, idx, rsp)
+
+ /* Loop termination condition: Would the specified index overflow the ring? */
+-#define RING_REQUEST_CONS_OVERFLOW(_r, _cons) \
++#define RING_REQUEST_CONS_OVERFLOW(_r, _cons) \
+ (((_cons) - (_r)->rsp_prod_pvt) >= RING_SIZE(_r))
+
+ /* Ill-behaved frontend determination: Can there be this many requests? */
+-#define RING_REQUEST_PROD_OVERFLOW(_r, _prod) \
++#define RING_REQUEST_PROD_OVERFLOW(_r, _prod) \
+ (((_prod) - (_r)->rsp_prod_pvt) > RING_SIZE(_r))
+
++/* Ill-behaved backend determination: Can there be this many responses? */
++#define RING_RESPONSE_PROD_OVERFLOW(_r, _prod) \
++ (((_prod) - (_r)->rsp_cons) > RING_SIZE(_r))
+
+-#define RING_PUSH_REQUESTS(_r) do { \
+- virt_wmb(); /* back sees requests /before/ updated producer index */ \
+- (_r)->sring->req_prod = (_r)->req_prod_pvt; \
++#define RING_PUSH_REQUESTS(_r) do { \
++ virt_wmb(); /* back sees requests /before/ updated producer index */\
++ (_r)->sring->req_prod = (_r)->req_prod_pvt; \
+ } while (0)
+
+-#define RING_PUSH_RESPONSES(_r) do { \
+- virt_wmb(); /* front sees responses /before/ updated producer index */ \
+- (_r)->sring->rsp_prod = (_r)->rsp_prod_pvt; \
++#define RING_PUSH_RESPONSES(_r) do { \
++ virt_wmb(); /* front sees resps /before/ updated producer index */ \
++ (_r)->sring->rsp_prod = (_r)->rsp_prod_pvt; \
+ } while (0)
+
+ /*
+@@ -247,40 +238,40 @@ struct __name##_back_ring { \
+ * field appropriately.
+ */
+
+-#define RING_PUSH_REQUESTS_AND_CHECK_NOTIFY(_r, _notify) do { \
+- RING_IDX __old = (_r)->sring->req_prod; \
+- RING_IDX __new = (_r)->req_prod_pvt; \
+- virt_wmb(); /* back sees requests /before/ updated producer index */ \
+- (_r)->sring->req_prod = __new; \
+- virt_mb(); /* back sees new requests /before/ we check req_event */ \
+- (_notify) = ((RING_IDX)(__new - (_r)->sring->req_event) < \
+- (RING_IDX)(__new - __old)); \
++#define RING_PUSH_REQUESTS_AND_CHECK_NOTIFY(_r, _notify) do { \
++ RING_IDX __old = (_r)->sring->req_prod; \
++ RING_IDX __new = (_r)->req_prod_pvt; \
++ virt_wmb(); /* back sees requests /before/ updated producer index */\
++ (_r)->sring->req_prod = __new; \
++ virt_mb(); /* back sees new requests /before/ we check req_event */ \
++ (_notify) = ((RING_IDX)(__new - (_r)->sring->req_event) < \
++ (RING_IDX)(__new - __old)); \
+ } while (0)
+
+-#define RING_PUSH_RESPONSES_AND_CHECK_NOTIFY(_r, _notify) do { \
+- RING_IDX __old = (_r)->sring->rsp_prod; \
+- RING_IDX __new = (_r)->rsp_prod_pvt; \
+- virt_wmb(); /* front sees responses /before/ updated producer index */ \
+- (_r)->sring->rsp_prod = __new; \
+- virt_mb(); /* front sees new responses /before/ we check rsp_event */ \
+- (_notify) = ((RING_IDX)(__new - (_r)->sring->rsp_event) < \
+- (RING_IDX)(__new - __old)); \
++#define RING_PUSH_RESPONSES_AND_CHECK_NOTIFY(_r, _notify) do { \
++ RING_IDX __old = (_r)->sring->rsp_prod; \
++ RING_IDX __new = (_r)->rsp_prod_pvt; \
++ virt_wmb(); /* front sees resps /before/ updated producer index */ \
++ (_r)->sring->rsp_prod = __new; \
++ virt_mb(); /* front sees new resps /before/ we check rsp_event */ \
++ (_notify) = ((RING_IDX)(__new - (_r)->sring->rsp_event) < \
++ (RING_IDX)(__new - __old)); \
+ } while (0)
+
+-#define RING_FINAL_CHECK_FOR_REQUESTS(_r, _work_to_do) do { \
+- (_work_to_do) = RING_HAS_UNCONSUMED_REQUESTS(_r); \
+- if (_work_to_do) break; \
+- (_r)->sring->req_event = (_r)->req_cons + 1; \
+- virt_mb(); \
+- (_work_to_do) = RING_HAS_UNCONSUMED_REQUESTS(_r); \
++#define RING_FINAL_CHECK_FOR_REQUESTS(_r, _work_to_do) do { \
++ (_work_to_do) = RING_HAS_UNCONSUMED_REQUESTS(_r); \
++ if (_work_to_do) break; \
++ (_r)->sring->req_event = (_r)->req_cons + 1; \
++ virt_mb(); \
++ (_work_to_do) = RING_HAS_UNCONSUMED_REQUESTS(_r); \
+ } while (0)
+
+-#define RING_FINAL_CHECK_FOR_RESPONSES(_r, _work_to_do) do { \
+- (_work_to_do) = RING_HAS_UNCONSUMED_RESPONSES(_r); \
+- if (_work_to_do) break; \
+- (_r)->sring->rsp_event = (_r)->rsp_cons + 1; \
+- virt_mb(); \
+- (_work_to_do) = RING_HAS_UNCONSUMED_RESPONSES(_r); \
++#define RING_FINAL_CHECK_FOR_RESPONSES(_r, _work_to_do) do { \
++ (_work_to_do) = RING_HAS_UNCONSUMED_RESPONSES(_r); \
++ if (_work_to_do) break; \
++ (_r)->sring->rsp_event = (_r)->rsp_cons + 1; \
++ virt_mb(); \
++ (_work_to_do) = RING_HAS_UNCONSUMED_RESPONSES(_r); \
+ } while (0)
+
+ #endif /* __XEN_PUBLIC_IO_RING_H__ */
+diff --git a/ipc/shm.c b/ipc/shm.c
+index 9c687cda9b0ab..74e0f2af99982 100644
+--- a/ipc/shm.c
++++ b/ipc/shm.c
+@@ -90,6 +90,7 @@ static void do_shm_rmid(struct ipc_namespace *ns, struct kern_ipc_perm *ipcp)
+ {
+ struct shmid_kernel *shp;
+ shp = container_of(ipcp, struct shmid_kernel, shm_perm);
++ WARN_ON(ns != shp->ns);
+
+ if (shp->shm_nattch) {
+ shp->shm_perm.mode |= SHM_DEST;
+@@ -180,10 +181,43 @@ static void shm_rcu_free(struct rcu_head *head)
+ ipc_rcu_free(head);
+ }
+
+-static inline void shm_rmid(struct ipc_namespace *ns, struct shmid_kernel *s)
++/*
++ * It has to be called with shp locked.
++ * It must be called before ipc_rmid()
++ */
++static inline void shm_clist_rm(struct shmid_kernel *shp)
+ {
+- list_del(&s->shm_clist);
+- ipc_rmid(&shm_ids(ns), &s->shm_perm);
++ struct task_struct *creator;
++
++ /* ensure that shm_creator does not disappear */
++ rcu_read_lock();
++
++ /*
++ * A concurrent exit_shm may do a list_del_init() as well.
++ * Just do nothing if exit_shm already did the work
++ */
++ if (!list_empty(&shp->shm_clist)) {
++ /*
++ * shp->shm_creator is guaranteed to be valid *only*
++ * if shp->shm_clist is not empty.
++ */
++ creator = shp->shm_creator;
++
++ task_lock(creator);
++ /*
++ * list_del_init() is a nop if the entry was already removed
++ * from the list.
++ */
++ list_del_init(&shp->shm_clist);
++ task_unlock(creator);
++ }
++ rcu_read_unlock();
++}
++
++static inline void shm_rmid(struct shmid_kernel *s)
++{
++ shm_clist_rm(s);
++ ipc_rmid(&shm_ids(s->ns), &s->shm_perm);
+ }
+
+
+@@ -238,7 +272,7 @@ static void shm_destroy(struct ipc_namespace *ns, struct shmid_kernel *shp)
+ shm_file = shp->shm_file;
+ shp->shm_file = NULL;
+ ns->shm_tot -= (shp->shm_segsz + PAGE_SIZE - 1) >> PAGE_SHIFT;
+- shm_rmid(ns, shp);
++ shm_rmid(shp);
+ shm_unlock(shp);
+ if (!is_file_hugepages(shm_file))
+ shmem_lock(shm_file, 0, shp->mlock_user);
+@@ -259,10 +293,10 @@ static void shm_destroy(struct ipc_namespace *ns, struct shmid_kernel *shp)
+ *
+ * 2) sysctl kernel.shm_rmid_forced is set to 1.
+ */
+-static bool shm_may_destroy(struct ipc_namespace *ns, struct shmid_kernel *shp)
++static bool shm_may_destroy(struct shmid_kernel *shp)
+ {
+ return (shp->shm_nattch == 0) &&
+- (ns->shm_rmid_forced ||
++ (shp->ns->shm_rmid_forced ||
+ (shp->shm_perm.mode & SHM_DEST));
+ }
+
+@@ -293,7 +327,7 @@ static void shm_close(struct vm_area_struct *vma)
+ shp->shm_lprid = task_tgid_vnr(current);
+ shp->shm_dtim = get_seconds();
+ shp->shm_nattch--;
+- if (shm_may_destroy(ns, shp))
++ if (shm_may_destroy(shp))
+ shm_destroy(ns, shp);
+ else
+ shm_unlock(shp);
+@@ -314,10 +348,10 @@ static int shm_try_destroy_orphaned(int id, void *p, void *data)
+ *
+ * As shp->* are changed under rwsem, it's safe to skip shp locking.
+ */
+- if (shp->shm_creator != NULL)
++ if (!list_empty(&shp->shm_clist))
+ return 0;
+
+- if (shm_may_destroy(ns, shp)) {
++ if (shm_may_destroy(shp)) {
+ shm_lock_by_ptr(shp);
+ shm_destroy(ns, shp);
+ }
+@@ -335,48 +369,97 @@ void shm_destroy_orphaned(struct ipc_namespace *ns)
+ /* Locking assumes this will only be called with task == current */
+ void exit_shm(struct task_struct *task)
+ {
+- struct ipc_namespace *ns = task->nsproxy->ipc_ns;
+- struct shmid_kernel *shp, *n;
++ for (;;) {
++ struct shmid_kernel *shp;
++ struct ipc_namespace *ns;
+
+- if (list_empty(&task->sysvshm.shm_clist))
+- return;
++ task_lock(task);
++
++ if (list_empty(&task->sysvshm.shm_clist)) {
++ task_unlock(task);
++ break;
++ }
++
++ shp = list_first_entry(&task->sysvshm.shm_clist, struct shmid_kernel,
++ shm_clist);
+
+- /*
+- * If kernel.shm_rmid_forced is not set then only keep track of
+- * which shmids are orphaned, so that a later set of the sysctl
+- * can clean them up.
+- */
+- if (!ns->shm_rmid_forced) {
+- down_read(&shm_ids(ns).rwsem);
+- list_for_each_entry(shp, &task->sysvshm.shm_clist, shm_clist)
+- shp->shm_creator = NULL;
+ /*
+- * Only under read lock but we are only called on current
+- * so no entry on the list will be shared.
++ * 1) Get pointer to the ipc namespace. It is worth to say
++ * that this pointer is guaranteed to be valid because
++ * shp lifetime is always shorter than namespace lifetime
++ * in which shp lives.
++ * We taken task_lock it means that shp won't be freed.
+ */
+- list_del(&task->sysvshm.shm_clist);
+- up_read(&shm_ids(ns).rwsem);
+- return;
+- }
++ ns = shp->ns;
+
+- /*
+- * Destroy all already created segments, that were not yet mapped,
+- * and mark any mapped as orphan to cover the sysctl toggling.
+- * Destroy is skipped if shm_may_destroy() returns false.
+- */
+- down_write(&shm_ids(ns).rwsem);
+- list_for_each_entry_safe(shp, n, &task->sysvshm.shm_clist, shm_clist) {
+- shp->shm_creator = NULL;
++ /*
++ * 2) If kernel.shm_rmid_forced is not set then only keep track of
++ * which shmids are orphaned, so that a later set of the sysctl
++ * can clean them up.
++ */
++ if (!ns->shm_rmid_forced)
++ goto unlink_continue;
+
+- if (shm_may_destroy(ns, shp)) {
+- shm_lock_by_ptr(shp);
+- shm_destroy(ns, shp);
++ /*
++ * 3) get a reference to the namespace.
++ * The refcount could be already 0. If it is 0, then
++ * the shm objects will be free by free_ipc_work().
++ */
++ ns = get_ipc_ns_not_zero(ns);
++ if (!ns) {
++unlink_continue:
++ list_del_init(&shp->shm_clist);
++ task_unlock(task);
++ continue;
+ }
+- }
+
+- /* Remove the list head from any segments still attached. */
+- list_del(&task->sysvshm.shm_clist);
+- up_write(&shm_ids(ns).rwsem);
++ /*
++ * 4) get a reference to shp.
++ * This cannot fail: shm_clist_rm() is called before
++ * ipc_rmid(), thus the refcount cannot be 0.
++ */
++ WARN_ON(!ipc_rcu_getref(&shp->shm_perm));
++
++ /*
++ * 5) unlink the shm segment from the list of segments
++ * created by current.
++ * This must be done last. After unlinking,
++ * only the refcounts obtained above prevent IPC_RMID
++ * from destroying the segment or the namespace.
++ */
++ list_del_init(&shp->shm_clist);
++
++ task_unlock(task);
++
++ /*
++ * 6) we have all references
++ * Thus lock & if needed destroy shp.
++ */
++ down_write(&shm_ids(ns).rwsem);
++ shm_lock_by_ptr(shp);
++ /*
++ * rcu_read_lock was implicitly taken in shm_lock_by_ptr, it's
++ * safe to call ipc_rcu_putref here
++ */
++ ipc_rcu_putref(&shp->shm_perm, shm_rcu_free);
++
++ if (ipc_valid_object(&shp->shm_perm)) {
++ if (shm_may_destroy(shp))
++ shm_destroy(ns, shp);
++ else
++ shm_unlock(shp);
++ } else {
++ /*
++ * Someone else deleted the shp from namespace
++ * idr/kht while we have waited.
++ * Just unlock and continue.
++ */
++ shm_unlock(shp);
++ }
++
++ up_write(&shm_ids(ns).rwsem);
++ put_ipc_ns(ns); /* paired with get_ipc_ns_not_zero */
++ }
+ }
+
+ static int shm_fault(struct vm_area_struct *vma, struct vm_fault *vmf)
+@@ -621,7 +704,11 @@ static int newseg(struct ipc_namespace *ns, struct ipc_params *params)
+ goto no_id;
+ }
+
++ shp->ns = ns;
++
++ task_lock(current);
+ list_add(&shp->shm_clist, ¤t->sysvshm.shm_clist);
++ task_unlock(current);
+
+ /*
+ * shmid gets reported as "inode#" in /proc/pid/maps.
+@@ -1270,7 +1357,8 @@ out_nattch:
+ down_write(&shm_ids(ns).rwsem);
+ shp = shm_lock(ns, shmid);
+ shp->shm_nattch--;
+- if (shm_may_destroy(ns, shp))
++
++ if (shm_may_destroy(shp))
+ shm_destroy(ns, shp);
+ else
+ shm_unlock(shp);
+diff --git a/kernel/kprobes.c b/kernel/kprobes.c
+index 51867a2e537fa..fb2357d0dbc85 100644
+--- a/kernel/kprobes.c
++++ b/kernel/kprobes.c
+@@ -1899,6 +1899,9 @@ int register_kretprobe(struct kretprobe *rp)
+ }
+ }
+
++ if (rp->data_size > KRETPROBE_MAX_DATA_SIZE)
++ return -E2BIG;
++
+ rp->kp.pre_handler = pre_handler_kretprobe;
+ rp->kp.post_handler = NULL;
+ rp->kp.fault_handler = NULL;
+diff --git a/kernel/power/hibernate.c b/kernel/power/hibernate.c
+index 7b393faf930f8..e938fd8db056b 100644
+--- a/kernel/power/hibernate.c
++++ b/kernel/power/hibernate.c
+@@ -672,7 +672,7 @@ static int load_image_and_restore(void)
+ goto Unlock;
+
+ error = swsusp_read(&flags);
+- swsusp_close(FMODE_READ);
++ swsusp_close(FMODE_READ | FMODE_EXCL);
+ if (!error)
+ hibernation_restore(flags & SF_PLATFORM_MODE);
+
+@@ -866,7 +866,7 @@ static int software_resume(void)
+ /* The snapshot device should not be opened while we're running */
+ if (!atomic_add_unless(&snapshot_device_available, -1, 0)) {
+ error = -EBUSY;
+- swsusp_close(FMODE_READ);
++ swsusp_close(FMODE_READ | FMODE_EXCL);
+ goto Unlock;
+ }
+
+@@ -900,7 +900,7 @@ static int software_resume(void)
+ pr_debug("PM: Hibernation image not present or could not be loaded.\n");
+ return error;
+ Close_Finish:
+- swsusp_close(FMODE_READ);
++ swsusp_close(FMODE_READ | FMODE_EXCL);
+ goto Finish;
+ }
+
+diff --git a/kernel/trace/trace.h b/kernel/trace/trace.h
+index ecea27ba29e68..7eb25e915b723 100644
+--- a/kernel/trace/trace.h
++++ b/kernel/trace/trace.h
+@@ -1161,14 +1161,26 @@ __event_trigger_test_discard(struct trace_event_file *file,
+ if (eflags & EVENT_FILE_FL_TRIGGER_COND)
+ *tt = event_triggers_call(file, entry);
+
+- if (test_bit(EVENT_FILE_FL_SOFT_DISABLED_BIT, &file->flags) ||
+- (unlikely(file->flags & EVENT_FILE_FL_FILTERED) &&
+- !filter_match_preds(file->filter, entry))) {
+- __trace_event_discard_commit(buffer, event);
+- return true;
+- }
++ if (likely(!(file->flags & (EVENT_FILE_FL_SOFT_DISABLED |
++ EVENT_FILE_FL_FILTERED |
++ EVENT_FILE_FL_PID_FILTER))))
++ return false;
++
++ if (file->flags & EVENT_FILE_FL_SOFT_DISABLED)
++ goto discard;
++
++ if (file->flags & EVENT_FILE_FL_FILTERED &&
++ !filter_match_preds(file->filter, entry))
++ goto discard;
++
++ if ((file->flags & EVENT_FILE_FL_PID_FILTER) &&
++ trace_event_ignore_this_pid(file))
++ goto discard;
+
+ return false;
++ discard:
++ __trace_event_discard_commit(buffer, event);
++ return true;
+ }
+
+ /**
+diff --git a/kernel/trace/trace_events.c b/kernel/trace/trace_events.c
+index 1499b2c2799c7..7532208898d0d 100644
+--- a/kernel/trace/trace_events.c
++++ b/kernel/trace/trace_events.c
+@@ -2241,12 +2241,19 @@ static struct trace_event_file *
+ trace_create_new_event(struct trace_event_call *call,
+ struct trace_array *tr)
+ {
++ struct trace_pid_list *pid_list;
+ struct trace_event_file *file;
+
+ file = kmem_cache_alloc(file_cachep, GFP_TRACE);
+ if (!file)
+ return NULL;
+
++ pid_list = rcu_dereference_protected(tr->filtered_pids,
++ lockdep_is_held(&event_mutex));
++
++ if (pid_list)
++ file->flags |= EVENT_FILE_FL_PID_FILTER;
++
+ file->event_call = call;
+ file->tr = tr;
+ atomic_set(&file->sm_ref, 0);
+diff --git a/lib/siphash.c b/lib/siphash.c
+index 3ae58b4edad61..e632ee40aac1a 100644
+--- a/lib/siphash.c
++++ b/lib/siphash.c
+@@ -49,6 +49,7 @@
+ SIPROUND; \
+ return (v0 ^ v1) ^ (v2 ^ v3);
+
++#ifndef CONFIG_HAVE_EFFICIENT_UNALIGNED_ACCESS
+ u64 __siphash_aligned(const void *data, size_t len, const siphash_key_t *key)
+ {
+ const u8 *end = data + len - (len % sizeof(u64));
+@@ -80,8 +81,8 @@ u64 __siphash_aligned(const void *data, size_t len, const siphash_key_t *key)
+ POSTAMBLE
+ }
+ EXPORT_SYMBOL(__siphash_aligned);
++#endif
+
+-#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));
+@@ -113,7 +114,6 @@ u64 __siphash_unaligned(const void *data, size_t len, const siphash_key_t *key)
+ POSTAMBLE
+ }
+ EXPORT_SYMBOL(__siphash_unaligned);
+-#endif
+
+ /**
+ * siphash_1u64 - compute 64-bit siphash PRF value of a u64
+@@ -250,6 +250,7 @@ EXPORT_SYMBOL(siphash_3u32);
+ HSIPROUND; \
+ return (v0 ^ v1) ^ (v2 ^ v3);
+
++#ifndef CONFIG_HAVE_EFFICIENT_UNALIGNED_ACCESS
+ u32 __hsiphash_aligned(const void *data, size_t len, const hsiphash_key_t *key)
+ {
+ const u8 *end = data + len - (len % sizeof(u64));
+@@ -280,8 +281,8 @@ u32 __hsiphash_aligned(const void *data, size_t len, const hsiphash_key_t *key)
+ HPOSTAMBLE
+ }
+ EXPORT_SYMBOL(__hsiphash_aligned);
++#endif
+
+-#ifndef CONFIG_HAVE_EFFICIENT_UNALIGNED_ACCESS
+ u32 __hsiphash_unaligned(const void *data, size_t len,
+ const hsiphash_key_t *key)
+ {
+@@ -313,7 +314,6 @@ u32 __hsiphash_unaligned(const void *data, size_t len,
+ HPOSTAMBLE
+ }
+ EXPORT_SYMBOL(__hsiphash_unaligned);
+-#endif
+
+ /**
+ * hsiphash_1u32 - compute 64-bit hsiphash PRF value of a u32
+@@ -418,6 +418,7 @@ EXPORT_SYMBOL(hsiphash_4u32);
+ HSIPROUND; \
+ return v1 ^ v3;
+
++#ifndef CONFIG_HAVE_EFFICIENT_UNALIGNED_ACCESS
+ u32 __hsiphash_aligned(const void *data, size_t len, const hsiphash_key_t *key)
+ {
+ const u8 *end = data + len - (len % sizeof(u32));
+@@ -438,8 +439,8 @@ u32 __hsiphash_aligned(const void *data, size_t len, const hsiphash_key_t *key)
+ HPOSTAMBLE
+ }
+ EXPORT_SYMBOL(__hsiphash_aligned);
++#endif
+
+-#ifndef CONFIG_HAVE_EFFICIENT_UNALIGNED_ACCESS
+ u32 __hsiphash_unaligned(const void *data, size_t len,
+ const hsiphash_key_t *key)
+ {
+@@ -461,7 +462,6 @@ u32 __hsiphash_unaligned(const void *data, size_t len,
+ HPOSTAMBLE
+ }
+ EXPORT_SYMBOL(__hsiphash_unaligned);
+-#endif
+
+ /**
+ * hsiphash_1u32 - compute 32-bit hsiphash PRF value of a u32
+diff --git a/mm/hugetlb.c b/mm/hugetlb.c
+index de89e9295f6c5..8aad9bd08462e 100644
+--- a/mm/hugetlb.c
++++ b/mm/hugetlb.c
+@@ -3393,14 +3393,20 @@ void __unmap_hugepage_range(struct mmu_gather *tlb, struct vm_area_struct *vma,
+ struct page *page;
+ struct hstate *h = hstate_vma(vma);
+ unsigned long sz = huge_page_size(h);
+- const unsigned long mmun_start = start; /* For mmu_notifiers */
+- const unsigned long mmun_end = end; /* For mmu_notifiers */
++ unsigned long mmun_start = start; /* For mmu_notifiers */
++ unsigned long mmun_end = end; /* For mmu_notifiers */
++ bool force_flush = false;
+
+ WARN_ON(!is_vm_hugetlb_page(vma));
+ BUG_ON(start & ~huge_page_mask(h));
+ BUG_ON(end & ~huge_page_mask(h));
+
+ tlb_start_vma(tlb, vma);
++
++ /*
++ * If sharing possible, alert mmu notifiers of worst case.
++ */
++ adjust_range_if_pmd_sharing_possible(vma, &mmun_start, &mmun_end);
+ mmu_notifier_invalidate_range_start(mm, mmun_start, mmun_end);
+ address = start;
+ for (; address < end; address += sz) {
+@@ -3411,6 +3417,8 @@ void __unmap_hugepage_range(struct mmu_gather *tlb, struct vm_area_struct *vma,
+ ptl = huge_pte_lock(h, mm, ptep);
+ if (huge_pmd_unshare(mm, &address, ptep)) {
+ spin_unlock(ptl);
++ tlb_flush_pmd_range(tlb, address & PUD_MASK, PUD_SIZE);
++ force_flush = true;
+ continue;
+ }
+
+@@ -3467,6 +3475,22 @@ void __unmap_hugepage_range(struct mmu_gather *tlb, struct vm_area_struct *vma,
+ }
+ mmu_notifier_invalidate_range_end(mm, mmun_start, mmun_end);
+ tlb_end_vma(tlb, vma);
++
++ /*
++ * If we unshared PMDs, the TLB flush was not recorded in mmu_gather. We
++ * could defer the flush until now, since by holding i_mmap_rwsem we
++ * guaranteed that the last refernece would not be dropped. But we must
++ * do the flushing before we return, as otherwise i_mmap_rwsem will be
++ * dropped and the last reference to the shared PMDs page might be
++ * dropped as well.
++ *
++ * In theory we could defer the freeing of the PMD pages as well, but
++ * huge_pmd_unshare() relies on the exact page_count for the PMD page to
++ * detect sharing, so we cannot defer the release of the page either.
++ * Instead, do flush now.
++ */
++ if (force_flush)
++ tlb_flush_mmu(tlb);
+ }
+
+ void __unmap_hugepage_range_final(struct mmu_gather *tlb,
+@@ -3493,12 +3517,23 @@ void unmap_hugepage_range(struct vm_area_struct *vma, unsigned long start,
+ {
+ struct mm_struct *mm;
+ struct mmu_gather tlb;
++ unsigned long tlb_start = start;
++ unsigned long tlb_end = end;
++
++ /*
++ * If shared PMDs were possibly used within this vma range, adjust
++ * start/end for worst case tlb flushing.
++ * Note that we can not be sure if PMDs are shared until we try to
++ * unmap pages. However, we want to make sure TLB flushing covers
++ * the largest possible range.
++ */
++ adjust_range_if_pmd_sharing_possible(vma, &tlb_start, &tlb_end);
+
+ mm = vma->vm_mm;
+
+- tlb_gather_mmu(&tlb, mm, start, end);
++ tlb_gather_mmu(&tlb, mm, tlb_start, tlb_end);
+ __unmap_hugepage_range(&tlb, vma, start, end, ref_page);
+- tlb_finish_mmu(&tlb, start, end);
++ tlb_finish_mmu(&tlb, tlb_start, tlb_end);
+ }
+
+ /*
+@@ -4186,11 +4221,21 @@ unsigned long hugetlb_change_protection(struct vm_area_struct *vma,
+ pte_t pte;
+ struct hstate *h = hstate_vma(vma);
+ unsigned long pages = 0;
++ unsigned long f_start = start;
++ unsigned long f_end = end;
++ bool shared_pmd = false;
++
++ /*
++ * In the case of shared PMDs, the area to flush could be beyond
++ * start/end. Set f_start/f_end to cover the maximum possible
++ * range if PMD sharing is possible.
++ */
++ adjust_range_if_pmd_sharing_possible(vma, &f_start, &f_end);
+
+ BUG_ON(address >= end);
+- flush_cache_range(vma, address, end);
++ flush_cache_range(vma, f_start, f_end);
+
+- mmu_notifier_invalidate_range_start(mm, start, end);
++ mmu_notifier_invalidate_range_start(mm, f_start, f_end);
+ i_mmap_lock_write(vma->vm_file->f_mapping);
+ for (; address < end; address += huge_page_size(h)) {
+ spinlock_t *ptl;
+@@ -4201,6 +4246,7 @@ unsigned long hugetlb_change_protection(struct vm_area_struct *vma,
+ if (huge_pmd_unshare(mm, &address, ptep)) {
+ pages++;
+ spin_unlock(ptl);
++ shared_pmd = true;
+ continue;
+ }
+ pte = huge_ptep_get(ptep);
+@@ -4235,12 +4281,18 @@ unsigned long hugetlb_change_protection(struct vm_area_struct *vma,
+ * Must flush TLB before releasing i_mmap_rwsem: x86's huge_pmd_unshare
+ * may have cleared our pud entry and done put_page on the page table:
+ * once we release i_mmap_rwsem, another task can do the final put_page
+- * and that page table be reused and filled with junk.
++ * and that page table be reused and filled with junk. If we actually
++ * did unshare a page of pmds, flush the range corresponding to the pud.
+ */
+- flush_hugetlb_tlb_range(vma, start, end);
+- mmu_notifier_invalidate_range(mm, start, end);
++ if (shared_pmd) {
++ flush_hugetlb_tlb_range(vma, f_start, f_end);
++ mmu_notifier_invalidate_range(mm, f_start, f_end);
++ } else {
++ flush_hugetlb_tlb_range(vma, start, end);
++ mmu_notifier_invalidate_range(mm, start, end);
++ }
+ i_mmap_unlock_write(vma->vm_file->f_mapping);
+- mmu_notifier_invalidate_range_end(mm, start, end);
++ mmu_notifier_invalidate_range_end(mm, f_start, f_end);
+
+ return pages << h->order;
+ }
+diff --git a/mm/memory.c b/mm/memory.c
+index be592d434ad89..c2890dc104d9e 100644
+--- a/mm/memory.c
++++ b/mm/memory.c
+@@ -320,6 +320,22 @@ bool __tlb_remove_page_size(struct mmu_gather *tlb, struct page *page, int page_
+ return false;
+ }
+
++void tlb_flush_pmd_range(struct mmu_gather *tlb, unsigned long address,
++ unsigned long size)
++{
++ if (tlb->page_size != 0 && tlb->page_size != PMD_SIZE)
++ tlb_flush_mmu(tlb);
++
++ tlb->page_size = PMD_SIZE;
++ tlb->start = min(tlb->start, address);
++ tlb->end = max(tlb->end, address + size);
++ /*
++ * Track the last address with which we adjusted the range. This
++ * will be used later to adjust again after a mmu_flush due to
++ * failed __tlb_remove_page
++ */
++ tlb->addr = address + size - PMD_SIZE;
++}
+ #endif /* HAVE_GENERIC_MMU_GATHER */
+
+ #ifdef CONFIG_HAVE_RCU_TABLE_FREE
+diff --git a/net/ipv4/devinet.c b/net/ipv4/devinet.c
+index 6f3c529431865..7a2442623d6a6 100644
+--- a/net/ipv4/devinet.c
++++ b/net/ipv4/devinet.c
+@@ -2271,7 +2271,7 @@ static int __devinet_sysctl_register(struct net *net, char *dev_name,
+ free:
+ kfree(t);
+ out:
+- return -ENOBUFS;
++ return -ENOMEM;
+ }
+
+ static void __devinet_sysctl_unregister(struct ipv4_devconf *cnf)
+diff --git a/net/ipv4/tcp_cubic.c b/net/ipv4/tcp_cubic.c
+index 00397c6add202..d710c519a0357 100644
+--- a/net/ipv4/tcp_cubic.c
++++ b/net/ipv4/tcp_cubic.c
+@@ -342,8 +342,6 @@ static void bictcp_cong_avoid(struct sock *sk, u32 ack, u32 acked)
+ return;
+
+ if (tcp_in_slow_start(tp)) {
+- if (hystart && after(ack, ca->end_seq))
+- bictcp_hystart_reset(sk);
+ acked = tcp_slow_start(tp, acked);
+ if (!acked)
+ return;
+@@ -394,6 +392,9 @@ static void hystart_update(struct sock *sk, u32 delay)
+ if (ca->found & hystart_detect)
+ return;
+
++ if (after(tp->snd_una, ca->end_seq))
++ bictcp_hystart_reset(sk);
++
+ if (hystart_detect & HYSTART_ACK_TRAIN) {
+ u32 now = bictcp_clock();
+
+diff --git a/net/nfc/nci/core.c b/net/nfc/nci/core.c
+index 19518a231e571..84eedbd5716d1 100644
+--- a/net/nfc/nci/core.c
++++ b/net/nfc/nci/core.c
+@@ -486,6 +486,11 @@ static int nci_open_device(struct nci_dev *ndev)
+
+ mutex_lock(&ndev->req_lock);
+
++ if (test_bit(NCI_UNREG, &ndev->flags)) {
++ rc = -ENODEV;
++ goto done;
++ }
++
+ if (test_bit(NCI_UP, &ndev->flags)) {
+ rc = -EALREADY;
+ goto done;
+@@ -549,6 +554,10 @@ done:
+ static int nci_close_device(struct nci_dev *ndev)
+ {
+ nci_req_cancel(ndev, ENODEV);
++
++ /* This mutex needs to be held as a barrier for
++ * caller nci_unregister_device
++ */
+ mutex_lock(&ndev->req_lock);
+
+ if (!test_and_clear_bit(NCI_UP, &ndev->flags)) {
+@@ -586,8 +595,8 @@ static int nci_close_device(struct nci_dev *ndev)
+ /* Flush cmd wq */
+ flush_workqueue(ndev->cmd_wq);
+
+- /* Clear flags */
+- ndev->flags = 0;
++ /* Clear flags except NCI_UNREG */
++ ndev->flags &= BIT(NCI_UNREG);
+
+ mutex_unlock(&ndev->req_lock);
+
+@@ -1271,6 +1280,12 @@ void nci_unregister_device(struct nci_dev *ndev)
+ {
+ struct nci_conn_info *conn_info, *n;
+
++ /* This set_bit is not protected with specialized barrier,
++ * However, it is fine because the mutex_lock(&ndev->req_lock);
++ * in nci_close_device() will help to emit one.
++ */
++ set_bit(NCI_UNREG, &ndev->flags);
++
+ nci_close_device(ndev);
+
+ destroy_workqueue(ndev->cmd_wq);
+diff --git a/net/rds/tcp.c b/net/rds/tcp.c
+index 2daba5316caa0..192f932bce0dd 100644
+--- a/net/rds/tcp.c
++++ b/net/rds/tcp.c
+@@ -389,7 +389,7 @@ void rds_tcp_tune(struct socket *sock)
+ sk->sk_userlocks |= SOCK_SNDBUF_LOCK;
+ }
+ if (rtn->rcvbuf_size > 0) {
+- sk->sk_sndbuf = rtn->rcvbuf_size;
++ sk->sk_rcvbuf = rtn->rcvbuf_size;
+ sk->sk_userlocks |= SOCK_RCVBUF_LOCK;
+ }
+ release_sock(sk);
+diff --git a/sound/pci/ctxfi/ctamixer.c b/sound/pci/ctxfi/ctamixer.c
+index 5fcbb065d8702..d32685ce6c059 100644
+--- a/sound/pci/ctxfi/ctamixer.c
++++ b/sound/pci/ctxfi/ctamixer.c
+@@ -27,16 +27,15 @@
+
+ #define BLANK_SLOT 4094
+
+-static int amixer_master(struct rsc *rsc)
++static void amixer_master(struct rsc *rsc)
+ {
+ rsc->conj = 0;
+- return rsc->idx = container_of(rsc, struct amixer, rsc)->idx[0];
++ rsc->idx = container_of(rsc, struct amixer, rsc)->idx[0];
+ }
+
+-static int amixer_next_conj(struct rsc *rsc)
++static void amixer_next_conj(struct rsc *rsc)
+ {
+ rsc->conj++;
+- return container_of(rsc, struct amixer, rsc)->idx[rsc->conj];
+ }
+
+ static int amixer_index(const struct rsc *rsc)
+@@ -335,16 +334,15 @@ int amixer_mgr_destroy(struct amixer_mgr *amixer_mgr)
+
+ /* SUM resource management */
+
+-static int sum_master(struct rsc *rsc)
++static void sum_master(struct rsc *rsc)
+ {
+ rsc->conj = 0;
+- return rsc->idx = container_of(rsc, struct sum, rsc)->idx[0];
++ rsc->idx = container_of(rsc, struct sum, rsc)->idx[0];
+ }
+
+-static int sum_next_conj(struct rsc *rsc)
++static void sum_next_conj(struct rsc *rsc)
+ {
+ rsc->conj++;
+- return container_of(rsc, struct sum, rsc)->idx[rsc->conj];
+ }
+
+ static int sum_index(const struct rsc *rsc)
+diff --git a/sound/pci/ctxfi/ctdaio.c b/sound/pci/ctxfi/ctdaio.c
+index 7f089cb433e17..df326b7663a2d 100644
+--- a/sound/pci/ctxfi/ctdaio.c
++++ b/sound/pci/ctxfi/ctdaio.c
+@@ -55,12 +55,12 @@ static struct daio_rsc_idx idx_20k2[NUM_DAIOTYP] = {
+ [SPDIFIO] = {.left = 0x05, .right = 0x85},
+ };
+
+-static int daio_master(struct rsc *rsc)
++static void daio_master(struct rsc *rsc)
+ {
+ /* Actually, this is not the resource index of DAIO.
+ * For DAO, it is the input mapper index. And, for DAI,
+ * it is the output time-slot index. */
+- return rsc->conj = rsc->idx;
++ rsc->conj = rsc->idx;
+ }
+
+ static int daio_index(const struct rsc *rsc)
+@@ -68,19 +68,19 @@ static int daio_index(const struct rsc *rsc)
+ return rsc->conj;
+ }
+
+-static int daio_out_next_conj(struct rsc *rsc)
++static void daio_out_next_conj(struct rsc *rsc)
+ {
+- return rsc->conj += 2;
++ rsc->conj += 2;
+ }
+
+-static int daio_in_next_conj_20k1(struct rsc *rsc)
++static void daio_in_next_conj_20k1(struct rsc *rsc)
+ {
+- return rsc->conj += 0x200;
++ rsc->conj += 0x200;
+ }
+
+-static int daio_in_next_conj_20k2(struct rsc *rsc)
++static void daio_in_next_conj_20k2(struct rsc *rsc)
+ {
+- return rsc->conj += 0x100;
++ rsc->conj += 0x100;
+ }
+
+ static const struct rsc_ops daio_out_rsc_ops = {
+diff --git a/sound/pci/ctxfi/ctresource.c b/sound/pci/ctxfi/ctresource.c
+index c5124c3c0fd19..f610c32ae5ad2 100644
+--- a/sound/pci/ctxfi/ctresource.c
++++ b/sound/pci/ctxfi/ctresource.c
+@@ -113,18 +113,17 @@ static int audio_ring_slot(const struct rsc *rsc)
+ return (rsc->conj << 4) + offset_in_audio_slot_block[rsc->type];
+ }
+
+-static int rsc_next_conj(struct rsc *rsc)
++static void rsc_next_conj(struct rsc *rsc)
+ {
+ unsigned int i;
+ for (i = 0; (i < 8) && (!(rsc->msr & (0x1 << i))); )
+ i++;
+ rsc->conj += (AUDIO_SLOT_BLOCK_NUM >> i);
+- return rsc->conj;
+ }
+
+-static int rsc_master(struct rsc *rsc)
++static void rsc_master(struct rsc *rsc)
+ {
+- return rsc->conj = rsc->idx;
++ rsc->conj = rsc->idx;
+ }
+
+ static const struct rsc_ops rsc_generic_ops = {
+diff --git a/sound/pci/ctxfi/ctresource.h b/sound/pci/ctxfi/ctresource.h
+index 736d9f7e9e165..29b6fe6de659c 100644
+--- a/sound/pci/ctxfi/ctresource.h
++++ b/sound/pci/ctxfi/ctresource.h
+@@ -43,8 +43,8 @@ struct rsc {
+ };
+
+ struct rsc_ops {
+- int (*master)(struct rsc *rsc); /* Move to master resource */
+- int (*next_conj)(struct rsc *rsc); /* Move to next conjugate resource */
++ void (*master)(struct rsc *rsc); /* Move to master resource */
++ void (*next_conj)(struct rsc *rsc); /* Move to next conjugate resource */
+ int (*index)(const struct rsc *rsc); /* Return the index of resource */
+ /* Return the output slot number */
+ int (*output_slot)(const struct rsc *rsc);
+diff --git a/sound/pci/ctxfi/ctsrc.c b/sound/pci/ctxfi/ctsrc.c
+index a5a72df298013..234a7e96fd08a 100644
+--- a/sound/pci/ctxfi/ctsrc.c
++++ b/sound/pci/ctxfi/ctsrc.c
+@@ -594,16 +594,15 @@ int src_mgr_destroy(struct src_mgr *src_mgr)
+
+ /* SRCIMP resource manager operations */
+
+-static int srcimp_master(struct rsc *rsc)
++static void srcimp_master(struct rsc *rsc)
+ {
+ rsc->conj = 0;
+- return rsc->idx = container_of(rsc, struct srcimp, rsc)->idx[0];
++ rsc->idx = container_of(rsc, struct srcimp, rsc)->idx[0];
+ }
+
+-static int srcimp_next_conj(struct rsc *rsc)
++static void srcimp_next_conj(struct rsc *rsc)
+ {
+ rsc->conj++;
+- return container_of(rsc, struct srcimp, rsc)->idx[rsc->conj];
+ }
+
+ static int srcimp_index(const struct rsc *rsc)
+diff --git a/sound/soc/soc-topology.c b/sound/soc/soc-topology.c
+index e9c57bd3c02bf..6274a50026473 100644
+--- a/sound/soc/soc-topology.c
++++ b/sound/soc/soc-topology.c
+@@ -2050,6 +2050,7 @@ EXPORT_SYMBOL_GPL(snd_soc_tplg_widget_remove_all);
+ /* remove dynamic controls from the component driver */
+ int snd_soc_tplg_component_remove(struct snd_soc_component *comp, u32 index)
+ {
++ struct snd_card *card = comp->card->snd_card;
+ struct snd_soc_dobj *dobj, *next_dobj;
+ int pass = SOC_TPLG_PASS_END;
+
+@@ -2057,6 +2058,7 @@ int snd_soc_tplg_component_remove(struct snd_soc_component *comp, u32 index)
+ while (pass >= SOC_TPLG_PASS_START) {
+
+ /* remove mixer controls */
++ down_write(&card->controls_rwsem);
+ list_for_each_entry_safe(dobj, next_dobj, &comp->dobj_list,
+ list) {
+
+@@ -2090,6 +2092,7 @@ int snd_soc_tplg_component_remove(struct snd_soc_component *comp, u32 index)
+ break;
+ }
+ }
++ up_write(&card->controls_rwsem);
+ pass--;
+ }
+
next reply other threads:[~2021-12-08 12:57 UTC|newest]
Thread overview: 393+ messages / expand[flat|nested] mbox.gz Atom feed top
2021-12-08 12:57 Mike Pagano [this message]
-- strict thread matches above, loose matches on Subject: below --
2023-01-07 11:37 [gentoo-commits] proj/linux-patches:4.9 commit in: / Mike Pagano
2022-12-14 12:24 Mike Pagano
2022-12-08 13:09 Alice Ferrazzi
2022-11-25 17:02 Mike Pagano
2022-11-10 15:14 Mike Pagano
2022-11-03 15:09 Mike Pagano
2022-10-26 11:43 Mike Pagano
2022-09-28 9:19 Mike Pagano
2022-09-20 12:04 Mike Pagano
2022-09-15 11:10 Mike Pagano
2022-09-05 12:08 Mike Pagano
2022-08-25 10:37 Mike Pagano
2022-07-29 15:25 Mike Pagano
2022-07-21 20:14 Mike Pagano
2022-07-12 16:03 Mike Pagano
2022-07-07 16:20 Mike Pagano
2022-07-02 16:04 Mike Pagano
2022-06-25 10:24 Mike Pagano
2022-06-16 11:42 Mike Pagano
2022-06-14 15:49 Mike Pagano
2022-06-06 11:07 Mike Pagano
2022-05-27 12:41 Mike Pagano
2022-05-25 11:57 Mike Pagano
2022-05-18 9:52 Mike Pagano
2022-05-15 22:14 Mike Pagano
2022-05-12 11:32 Mike Pagano
2022-04-27 11:38 Mike Pagano
2022-04-20 12:12 Mike Pagano
2022-03-28 11:01 Mike Pagano
2022-03-23 11:59 Mike Pagano
2022-03-16 13:22 Mike Pagano
2022-03-11 10:57 Mike Pagano
2022-03-08 18:28 Mike Pagano
2022-03-02 13:09 Mike Pagano
2022-02-26 23:38 Mike Pagano
2022-02-23 12:40 Mike Pagano
2022-02-16 12:49 Mike Pagano
2022-02-11 12:38 Mike Pagano
2022-02-08 18:03 Mike Pagano
2022-01-29 17:46 Mike Pagano
2022-01-27 11:41 Mike Pagano
2022-01-11 12:59 Mike Pagano
2022-01-05 12:57 Mike Pagano
2021-12-29 13:13 Mike Pagano
2021-12-22 14:08 Mike Pagano
2021-12-14 10:37 Mike Pagano
2021-11-26 12:01 Mike Pagano
2021-11-12 13:38 Mike Pagano
2021-11-02 17:06 Mike Pagano
2021-10-27 12:00 Mike Pagano
2021-10-17 13:14 Mike Pagano
2021-10-09 21:35 Mike Pagano
2021-10-06 11:32 Mike Pagano
2021-09-26 14:15 Mike Pagano
2021-09-22 11:42 Mike Pagano
2021-09-20 22:06 Mike Pagano
2021-09-03 11:24 Mike Pagano
2021-08-26 14:03 Mike Pagano
2021-08-25 23:14 Mike Pagano
2021-08-25 23:13 Mike Pagano
2021-08-15 20:10 Mike Pagano
2021-08-08 13:41 Mike Pagano
2021-08-04 11:55 Mike Pagano
2021-08-03 12:49 Mike Pagano
2021-07-28 12:39 Mike Pagano
2021-07-20 15:29 Alice Ferrazzi
2021-07-11 14:47 Mike Pagano
2021-06-30 14:28 Mike Pagano
2021-06-17 14:23 Alice Ferrazzi
2021-06-17 11:08 Alice Ferrazzi
2021-06-10 11:10 Mike Pagano
2021-06-03 10:41 Alice Ferrazzi
2021-05-26 12:03 Mike Pagano
2021-05-22 10:01 Mike Pagano
2021-04-28 11:03 Alice Ferrazzi
2021-04-16 11:19 Alice Ferrazzi
2021-04-10 13:22 Mike Pagano
2021-04-07 12:14 Mike Pagano
2021-03-30 14:14 Mike Pagano
2021-03-24 12:07 Mike Pagano
2021-03-17 15:58 Mike Pagano
2021-03-11 14:04 Mike Pagano
2021-03-07 15:13 Mike Pagano
2021-03-03 17:24 Alice Ferrazzi
2021-02-23 13:38 Alice Ferrazzi
2021-02-10 10:15 Alice Ferrazzi
2021-02-05 14:53 Alice Ferrazzi
2021-02-03 23:25 Mike Pagano
2021-01-30 13:18 Alice Ferrazzi
2021-01-23 16:34 Mike Pagano
2021-01-17 16:22 Mike Pagano
2021-01-12 20:08 Mike Pagano
2021-01-09 12:54 Mike Pagano
2020-12-29 14:18 Mike Pagano
2020-12-11 12:54 Mike Pagano
2020-12-02 12:48 Mike Pagano
2020-11-24 13:39 Mike Pagano
2020-11-22 19:12 Mike Pagano
2020-11-18 19:23 Mike Pagano
2020-11-11 15:32 Mike Pagano
2020-11-10 13:54 Mike Pagano
2020-10-29 11:17 Mike Pagano
2020-10-17 10:14 Mike Pagano
2020-10-14 20:34 Mike Pagano
2020-10-01 19:03 Mike Pagano
2020-10-01 18:59 Mike Pagano
2020-09-24 16:02 Mike Pagano
2020-09-23 11:59 Mike Pagano
2020-09-23 11:57 Mike Pagano
2020-09-12 17:31 Mike Pagano
2020-09-03 11:34 Mike Pagano
2020-08-26 11:13 Mike Pagano
2020-08-21 11:23 Alice Ferrazzi
2020-08-21 11:02 Alice Ferrazzi
2020-07-31 16:13 Mike Pagano
2020-07-22 12:30 Mike Pagano
2020-07-09 12:07 Mike Pagano
2020-07-01 12:10 Mike Pagano
2020-06-22 14:44 Mike Pagano
2020-06-11 11:28 Mike Pagano
2020-06-03 11:37 Mike Pagano
2020-05-27 15:26 Mike Pagano
2020-05-20 11:24 Mike Pagano
2020-05-13 12:50 Mike Pagano
2020-05-11 22:52 Mike Pagano
2020-05-05 17:39 Mike Pagano
2020-05-02 19:22 Mike Pagano
2020-04-24 12:01 Mike Pagano
2020-04-15 17:55 Mike Pagano
2020-04-13 11:15 Mike Pagano
2020-04-02 18:55 Mike Pagano
2020-03-20 11:54 Mike Pagano
2020-03-11 10:15 Mike Pagano
2020-02-28 15:29 Mike Pagano
2020-02-14 23:36 Mike Pagano
2020-02-05 14:48 Mike Pagano
2020-01-29 12:36 Mike Pagano
2020-01-23 11:02 Mike Pagano
2020-01-14 22:26 Mike Pagano
2020-01-12 14:52 Mike Pagano
2020-01-04 16:48 Mike Pagano
2019-12-21 14:54 Mike Pagano
2019-12-05 15:17 Alice Ferrazzi
2019-11-29 21:39 Thomas Deutschmann
2019-11-28 23:51 Mike Pagano
2019-11-25 12:08 Mike Pagano
2019-11-16 10:54 Mike Pagano
2019-11-12 20:58 Mike Pagano
2019-11-10 16:15 Mike Pagano
2019-11-06 14:24 Mike Pagano
2019-10-29 11:16 Mike Pagano
2019-10-17 22:21 Mike Pagano
2019-10-07 17:37 Mike Pagano
2019-10-05 11:39 Mike Pagano
2019-09-21 15:57 Mike Pagano
2019-09-19 23:16 Mike Pagano
2019-09-16 12:22 Mike Pagano
2019-09-10 11:10 Mike Pagano
2019-09-06 17:18 Mike Pagano
2019-08-25 17:34 Mike Pagano
2019-08-11 10:59 Mike Pagano
2019-08-06 19:16 Mike Pagano
2019-08-04 16:05 Mike Pagano
2019-07-21 14:38 Mike Pagano
2019-07-10 11:03 Mike Pagano
2019-06-27 11:10 Mike Pagano
2019-06-22 19:04 Mike Pagano
2019-06-17 19:19 Mike Pagano
2019-06-11 17:40 Mike Pagano
2019-06-11 12:39 Mike Pagano
2019-05-31 16:42 Mike Pagano
2019-05-26 17:12 Mike Pagano
2019-05-21 17:14 Mike Pagano
2019-05-16 22:59 Mike Pagano
2019-05-14 20:08 Mike Pagano
2019-05-10 19:38 Mike Pagano
2019-05-08 10:03 Mike Pagano
2019-05-04 18:26 Mike Pagano
2019-05-02 10:16 Mike Pagano
2019-04-27 17:29 Mike Pagano
2019-04-20 11:06 Mike Pagano
2019-04-19 19:54 Mike Pagano
2019-04-05 21:42 Mike Pagano
2019-04-03 10:48 Mike Pagano
2019-03-27 10:20 Mike Pagano
2019-03-23 14:57 Mike Pagano
2019-03-23 14:18 Mike Pagano
2019-03-19 16:56 Mike Pagano
2019-03-13 22:05 Mike Pagano
2019-03-06 19:12 Mike Pagano
2019-03-05 17:59 Mike Pagano
2019-02-27 11:20 Mike Pagano
2019-02-23 14:42 Mike Pagano
2019-02-20 11:16 Mike Pagano
2019-02-15 12:46 Mike Pagano
2019-02-12 20:51 Mike Pagano
2019-02-06 20:14 Mike Pagano
2019-01-31 11:22 Mike Pagano
2019-01-26 15:03 Mike Pagano
2019-01-23 11:29 Mike Pagano
2019-01-16 23:29 Mike Pagano
2019-01-13 19:26 Mike Pagano
2019-01-09 18:09 Mike Pagano
2019-01-09 17:52 Mike Pagano
2018-12-29 22:53 Mike Pagano
2018-12-29 18:51 Mike Pagano
2018-12-21 14:44 Mike Pagano
2018-12-17 11:39 Mike Pagano
2018-12-13 11:36 Mike Pagano
2018-12-08 13:25 Mike Pagano
2018-12-05 19:44 Mike Pagano
2018-12-01 18:00 Mike Pagano
2018-12-01 15:04 Mike Pagano
2018-11-27 16:22 Mike Pagano
2018-11-23 12:48 Mike Pagano
2018-11-23 12:45 Mike Pagano
2018-11-21 12:20 Mike Pagano
2018-11-14 14:37 Mike Pagano
2018-11-14 14:37 Mike Pagano
2018-11-14 14:37 Mike Pagano
2018-11-14 14:37 Mike Pagano
2018-11-14 14:37 Mike Pagano
2018-11-14 14:37 Mike Pagano
2018-11-14 14:37 Mike Pagano
2018-11-14 14:37 Mike Pagano
2018-11-14 14:37 Mike Pagano
2018-11-14 14:37 Mike Pagano
2018-11-14 14:37 Mike Pagano
2018-11-14 14:37 Mike Pagano
2018-11-14 14:37 Mike Pagano
2018-11-14 14:37 Mike Pagano
2018-11-14 14:37 Mike Pagano
2018-11-14 14:37 Mike Pagano
2018-11-14 14:37 Mike Pagano
2018-11-14 14:37 Mike Pagano
2018-11-14 14:37 Mike Pagano
2018-11-14 14:37 Mike Pagano
2018-11-14 14:37 Mike Pagano
2018-11-14 14:37 Mike Pagano
2018-11-14 14:37 Mike Pagano
2018-11-14 14:37 Mike Pagano
2018-11-14 14:37 Mike Pagano
2018-11-13 21:20 Mike Pagano
2018-11-11 1:44 Mike Pagano
2018-11-11 1:31 Mike Pagano
2018-11-10 21:30 Mike Pagano
2018-10-20 12:43 Mike Pagano
2018-10-18 10:25 Mike Pagano
2018-10-13 16:34 Mike Pagano
2018-10-10 11:19 Mike Pagano
2018-10-04 10:40 Mike Pagano
2018-09-29 13:33 Mike Pagano
2018-09-26 10:42 Mike Pagano
2018-09-19 22:38 Mike Pagano
2018-09-15 10:10 Mike Pagano
2018-09-09 23:27 Mike Pagano
2018-09-05 15:27 Mike Pagano
2018-08-24 11:43 Mike Pagano
2018-08-22 10:06 Alice Ferrazzi
2018-08-18 18:07 Mike Pagano
2018-08-17 19:32 Mike Pagano
2018-08-17 19:25 Mike Pagano
2018-08-16 11:51 Mike Pagano
2018-08-15 16:46 Mike Pagano
2018-08-09 10:52 Mike Pagano
2018-08-07 18:12 Mike Pagano
2018-08-03 12:25 Mike Pagano
2018-07-28 10:38 Mike Pagano
2018-07-25 10:26 Mike Pagano
2018-07-22 15:14 Mike Pagano
2018-07-17 10:25 Mike Pagano
2018-07-12 15:42 Alice Ferrazzi
2018-07-03 13:16 Mike Pagano
2018-06-26 16:34 Alice Ferrazzi
2018-06-16 15:42 Mike Pagano
2018-06-13 15:03 Mike Pagano
2018-06-06 18:04 Mike Pagano
2018-06-05 11:21 Mike Pagano
2018-05-30 22:34 Mike Pagano
2018-05-30 11:39 Mike Pagano
2018-05-25 14:54 Mike Pagano
2018-05-22 17:28 Mike Pagano
2018-05-20 22:20 Mike Pagano
2018-05-16 10:23 Mike Pagano
2018-05-09 10:54 Mike Pagano
2018-05-02 16:13 Mike Pagano
2018-04-30 10:29 Mike Pagano
2018-04-24 11:30 Mike Pagano
2018-04-20 11:12 Mike Pagano
2018-04-13 22:21 Mike Pagano
2018-04-08 14:26 Mike Pagano
2018-03-31 22:17 Mike Pagano
2018-03-28 17:42 Mike Pagano
2018-03-25 14:31 Mike Pagano
2018-03-25 13:39 Mike Pagano
2018-03-22 12:58 Mike Pagano
2018-03-18 22:15 Mike Pagano
2018-03-11 18:26 Mike Pagano
2018-03-05 2:38 Alice Ferrazzi
2018-02-28 18:46 Alice Ferrazzi
2018-02-28 15:02 Alice Ferrazzi
2018-02-25 15:47 Mike Pagano
2018-02-22 23:22 Mike Pagano
2018-02-17 15:02 Alice Ferrazzi
2018-02-13 13:25 Alice Ferrazzi
2018-02-03 21:22 Mike Pagano
2018-01-31 13:31 Alice Ferrazzi
2018-01-23 21:17 Mike Pagano
2018-01-17 10:18 Alice Ferrazzi
2018-01-17 10:18 Alice Ferrazzi
2018-01-17 9:16 Alice Ferrazzi
2018-01-15 14:57 Alice Ferrazzi
2018-01-10 12:21 Alice Ferrazzi
2018-01-10 11:47 Mike Pagano
2018-01-05 15:54 Alice Ferrazzi
2018-01-05 15:04 Alice Ferrazzi
2018-01-02 20:13 Mike Pagano
2017-12-29 17:20 Alice Ferrazzi
2017-12-25 14:36 Alice Ferrazzi
2017-12-20 12:44 Mike Pagano
2017-12-16 17:42 Alice Ferrazzi
2017-12-14 8:58 Alice Ferrazzi
2017-12-09 23:29 Mike Pagano
2017-12-05 11:38 Mike Pagano
2017-11-30 12:19 Alice Ferrazzi
2017-11-24 9:44 Alice Ferrazzi
2017-11-21 9:18 Alice Ferrazzi
2017-11-18 18:24 Mike Pagano
2017-11-15 15:44 Mike Pagano
2017-11-08 13:49 Mike Pagano
2017-11-02 10:03 Mike Pagano
2017-10-27 10:29 Mike Pagano
2017-10-21 20:15 Mike Pagano
2017-10-18 13:46 Mike Pagano
2017-10-12 22:26 Mike Pagano
2017-10-12 12:37 Mike Pagano
2017-10-08 14:23 Mike Pagano
2017-10-08 14:21 Mike Pagano
2017-10-08 14:13 Mike Pagano
2017-10-05 11:38 Mike Pagano
2017-09-27 16:38 Mike Pagano
2017-09-20 10:11 Mike Pagano
2017-09-14 11:39 Mike Pagano
2017-09-13 22:28 Mike Pagano
2017-09-13 16:25 Mike Pagano
2017-09-10 14:38 Mike Pagano
2017-09-07 22:43 Mike Pagano
2017-09-02 17:45 Mike Pagano
2017-08-30 10:06 Mike Pagano
2017-08-25 10:59 Mike Pagano
2017-08-16 22:29 Mike Pagano
2017-08-13 16:51 Mike Pagano
2017-08-11 17:41 Mike Pagano
2017-08-07 10:26 Mike Pagano
2017-05-14 13:31 Mike Pagano
2017-05-08 10:43 Mike Pagano
2017-05-03 17:45 Mike Pagano
2017-04-27 9:05 Alice Ferrazzi
2017-04-22 17:01 Mike Pagano
2017-04-18 10:23 Mike Pagano
2017-04-12 18:01 Mike Pagano
2017-04-08 13:53 Mike Pagano
2017-03-31 10:44 Mike Pagano
2017-03-30 18:15 Mike Pagano
2017-03-26 11:54 Mike Pagano
2017-03-23 18:38 Mike Pagano
2017-03-22 12:42 Mike Pagano
2017-03-18 14:34 Mike Pagano
2017-03-15 19:21 Mike Pagano
2017-03-12 12:22 Mike Pagano
2017-03-02 16:23 Mike Pagano
2017-02-26 20:38 Mike Pagano
2017-02-26 20:36 Mike Pagano
2017-02-23 20:34 Mike Pagano
2017-02-23 20:11 Mike Pagano
2017-02-18 20:37 Mike Pagano
2017-02-18 16:13 Alice Ferrazzi
2017-02-15 16:02 Alice Ferrazzi
2017-02-14 23:08 Mike Pagano
2017-02-09 11:11 Alice Ferrazzi
2017-02-04 11:34 Alice Ferrazzi
2017-02-01 13:07 Alice Ferrazzi
2017-01-29 23:08 Alice Ferrazzi
2017-01-26 8:51 Alice Ferrazzi
2017-01-20 11:33 Alice Ferrazzi
2017-01-15 22:59 Mike Pagano
2017-01-12 22:53 Mike Pagano
2017-01-09 12:41 Mike Pagano
2017-01-07 0:55 Mike Pagano
2017-01-06 23:09 Mike Pagano
2016-12-31 19:39 Mike Pagano
2016-12-11 23:20 Mike Pagano
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to=1638968220.dcaca281ef1c3ad43d7d25a2bd5ce968099a4b5f.mpagano@gentoo \
--to=mpagano@gentoo.org \
--cc=gentoo-commits@lists.gentoo.org \
--cc=gentoo-dev@lists.gentoo.org \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox