diff options
Diffstat (limited to '3.2.62/1059_linux-3.2.60.patch')
| -rw-r--r-- | 3.2.62/1059_linux-3.2.60.patch | 2964 |
1 files changed, 2964 insertions, 0 deletions
diff --git a/3.2.62/1059_linux-3.2.60.patch b/3.2.62/1059_linux-3.2.60.patch new file mode 100644 index 0000000..c5a9389 --- /dev/null +++ b/3.2.62/1059_linux-3.2.60.patch @@ -0,0 +1,2964 @@ +diff --git a/Documentation/input/elantech.txt b/Documentation/input/elantech.txt +index 5602eb7..e1ae127 100644 +--- a/Documentation/input/elantech.txt ++++ b/Documentation/input/elantech.txt +@@ -504,9 +504,12 @@ byte 5: + * reg_10 + + bit 7 6 5 4 3 2 1 0 +- 0 0 0 0 0 0 0 A ++ 0 0 0 0 R F T A + + A: 1 = enable absolute tracking ++ T: 1 = enable two finger mode auto correct ++ F: 1 = disable ABS Position Filter ++ R: 1 = enable real hardware resolution + + 6.2 Native absolute mode 6 byte packet format + ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ +diff --git a/Makefile b/Makefile +index 1be3414..317d5ea 100644 +--- a/Makefile ++++ b/Makefile +@@ -1,6 +1,6 @@ + VERSION = 3 + PATCHLEVEL = 2 +-SUBLEVEL = 59 ++SUBLEVEL = 60 + EXTRAVERSION = + NAME = Saber-toothed Squirrel + +diff --git a/arch/powerpc/lib/crtsavres.S b/arch/powerpc/lib/crtsavres.S +index 1c893f0..21ecdf5 100644 +--- a/arch/powerpc/lib/crtsavres.S ++++ b/arch/powerpc/lib/crtsavres.S +@@ -230,6 +230,87 @@ _GLOBAL(_rest32gpr_31_x) + mr 1,11 + blr + ++#ifdef CONFIG_ALTIVEC ++/* Called with r0 pointing just beyond the end of the vector save area. */ ++ ++_GLOBAL(_savevr_20) ++ li r11,-192 ++ stvx vr20,r11,r0 ++_GLOBAL(_savevr_21) ++ li r11,-176 ++ stvx vr21,r11,r0 ++_GLOBAL(_savevr_22) ++ li r11,-160 ++ stvx vr22,r11,r0 ++_GLOBAL(_savevr_23) ++ li r11,-144 ++ stvx vr23,r11,r0 ++_GLOBAL(_savevr_24) ++ li r11,-128 ++ stvx vr24,r11,r0 ++_GLOBAL(_savevr_25) ++ li r11,-112 ++ stvx vr25,r11,r0 ++_GLOBAL(_savevr_26) ++ li r11,-96 ++ stvx vr26,r11,r0 ++_GLOBAL(_savevr_27) ++ li r11,-80 ++ stvx vr27,r11,r0 ++_GLOBAL(_savevr_28) ++ li r11,-64 ++ stvx vr28,r11,r0 ++_GLOBAL(_savevr_29) ++ li r11,-48 ++ stvx vr29,r11,r0 ++_GLOBAL(_savevr_30) ++ li r11,-32 ++ stvx vr30,r11,r0 ++_GLOBAL(_savevr_31) ++ li r11,-16 ++ stvx vr31,r11,r0 ++ blr ++ ++_GLOBAL(_restvr_20) ++ li r11,-192 ++ lvx vr20,r11,r0 ++_GLOBAL(_restvr_21) ++ li r11,-176 ++ lvx vr21,r11,r0 ++_GLOBAL(_restvr_22) ++ li r11,-160 ++ lvx vr22,r11,r0 ++_GLOBAL(_restvr_23) ++ li r11,-144 ++ lvx vr23,r11,r0 ++_GLOBAL(_restvr_24) ++ li r11,-128 ++ lvx vr24,r11,r0 ++_GLOBAL(_restvr_25) ++ li r11,-112 ++ lvx vr25,r11,r0 ++_GLOBAL(_restvr_26) ++ li r11,-96 ++ lvx vr26,r11,r0 ++_GLOBAL(_restvr_27) ++ li r11,-80 ++ lvx vr27,r11,r0 ++_GLOBAL(_restvr_28) ++ li r11,-64 ++ lvx vr28,r11,r0 ++_GLOBAL(_restvr_29) ++ li r11,-48 ++ lvx vr29,r11,r0 ++_GLOBAL(_restvr_30) ++ li r11,-32 ++ lvx vr30,r11,r0 ++_GLOBAL(_restvr_31) ++ li r11,-16 ++ lvx vr31,r11,r0 ++ blr ++ ++#endif /* CONFIG_ALTIVEC */ ++ + #else /* CONFIG_PPC64 */ + + .globl _savegpr0_14 +@@ -353,6 +434,111 @@ _restgpr0_31: + mtlr r0 + blr + ++#ifdef CONFIG_ALTIVEC ++/* Called with r0 pointing just beyond the end of the vector save area. */ ++ ++.globl _savevr_20 ++_savevr_20: ++ li r12,-192 ++ stvx vr20,r12,r0 ++.globl _savevr_21 ++_savevr_21: ++ li r12,-176 ++ stvx vr21,r12,r0 ++.globl _savevr_22 ++_savevr_22: ++ li r12,-160 ++ stvx vr22,r12,r0 ++.globl _savevr_23 ++_savevr_23: ++ li r12,-144 ++ stvx vr23,r12,r0 ++.globl _savevr_24 ++_savevr_24: ++ li r12,-128 ++ stvx vr24,r12,r0 ++.globl _savevr_25 ++_savevr_25: ++ li r12,-112 ++ stvx vr25,r12,r0 ++.globl _savevr_26 ++_savevr_26: ++ li r12,-96 ++ stvx vr26,r12,r0 ++.globl _savevr_27 ++_savevr_27: ++ li r12,-80 ++ stvx vr27,r12,r0 ++.globl _savevr_28 ++_savevr_28: ++ li r12,-64 ++ stvx vr28,r12,r0 ++.globl _savevr_29 ++_savevr_29: ++ li r12,-48 ++ stvx vr29,r12,r0 ++.globl _savevr_30 ++_savevr_30: ++ li r12,-32 ++ stvx vr30,r12,r0 ++.globl _savevr_31 ++_savevr_31: ++ li r12,-16 ++ stvx vr31,r12,r0 ++ blr ++ ++.globl _restvr_20 ++_restvr_20: ++ li r12,-192 ++ lvx vr20,r12,r0 ++.globl _restvr_21 ++_restvr_21: ++ li r12,-176 ++ lvx vr21,r12,r0 ++.globl _restvr_22 ++_restvr_22: ++ li r12,-160 ++ lvx vr22,r12,r0 ++.globl _restvr_23 ++_restvr_23: ++ li r12,-144 ++ lvx vr23,r12,r0 ++.globl _restvr_24 ++_restvr_24: ++ li r12,-128 ++ lvx vr24,r12,r0 ++.globl _restvr_25 ++_restvr_25: ++ li r12,-112 ++ lvx vr25,r12,r0 ++.globl _restvr_26 ++_restvr_26: ++ li r12,-96 ++ lvx vr26,r12,r0 ++.globl _restvr_27 ++_restvr_27: ++ li r12,-80 ++ lvx vr27,r12,r0 ++.globl _restvr_28 ++_restvr_28: ++ li r12,-64 ++ lvx vr28,r12,r0 ++.globl _restvr_29 ++_restvr_29: ++ li r12,-48 ++ lvx vr29,r12,r0 ++.globl _restvr_30 ++_restvr_30: ++ li r12,-32 ++ lvx vr30,r12,r0 ++.globl _restvr_31 ++_restvr_31: ++ li r12,-16 ++ lvx vr31,r12,r0 ++ blr ++ ++#endif /* CONFIG_ALTIVEC */ ++ + #endif /* CONFIG_PPC64 */ + + #endif +diff --git a/arch/x86/include/asm/hugetlb.h b/arch/x86/include/asm/hugetlb.h +index 439a9ac..48fa391 100644 +--- a/arch/x86/include/asm/hugetlb.h ++++ b/arch/x86/include/asm/hugetlb.h +@@ -51,6 +51,7 @@ static inline pte_t huge_ptep_get_and_clear(struct mm_struct *mm, + static inline void huge_ptep_clear_flush(struct vm_area_struct *vma, + unsigned long addr, pte_t *ptep) + { ++ ptep_clear_flush(vma, addr, ptep); + } + + static inline int huge_pte_none(pte_t pte) +diff --git a/arch/x86/kernel/ldt.c b/arch/x86/kernel/ldt.c +index 4ac4531..3e0ccbf 100644 +--- a/arch/x86/kernel/ldt.c ++++ b/arch/x86/kernel/ldt.c +@@ -21,6 +21,8 @@ + #include <asm/mmu_context.h> + #include <asm/syscalls.h> + ++int sysctl_ldt16 = 0; ++ + #ifdef CONFIG_SMP + static void flush_ldt(void *current_mm) + { +@@ -235,7 +237,7 @@ static int write_ldt(void __user *ptr, unsigned long bytecount, int oldmode) + * IRET leaking the high bits of the kernel stack address. + */ + #ifdef CONFIG_X86_64 +- if (!ldt_info.seg_32bit) { ++ if (!ldt_info.seg_32bit && !sysctl_ldt16) { + error = -EINVAL; + goto out_unlock; + } +diff --git a/arch/x86/vdso/vdso32-setup.c b/arch/x86/vdso/vdso32-setup.c +index 468d591..51bdc05 100644 +--- a/arch/x86/vdso/vdso32-setup.c ++++ b/arch/x86/vdso/vdso32-setup.c +@@ -41,6 +41,7 @@ enum { + #ifdef CONFIG_X86_64 + #define vdso_enabled sysctl_vsyscall32 + #define arch_setup_additional_pages syscall32_setup_pages ++extern int sysctl_ldt16; + #endif + + /* +@@ -388,6 +389,13 @@ static ctl_table abi_table2[] = { + .mode = 0644, + .proc_handler = proc_dointvec + }, ++ { ++ .procname = "ldt16", ++ .data = &sysctl_ldt16, ++ .maxlen = sizeof(int), ++ .mode = 0644, ++ .proc_handler = proc_dointvec ++ }, + {} + }; + +diff --git a/drivers/acpi/ec.c b/drivers/acpi/ec.c +index 8176b82..3923064 100644 +--- a/drivers/acpi/ec.c ++++ b/drivers/acpi/ec.c +@@ -70,6 +70,8 @@ enum ec_command { + #define ACPI_EC_DELAY 500 /* Wait 500ms max. during EC ops */ + #define ACPI_EC_UDELAY_GLK 1000 /* Wait 1ms max. to get global lock */ + #define ACPI_EC_MSI_UDELAY 550 /* Wait 550us for MSI EC */ ++#define ACPI_EC_CLEAR_MAX 100 /* Maximum number of events to query ++ * when trying to clear the EC */ + + enum { + EC_FLAGS_QUERY_PENDING, /* Query is pending */ +@@ -123,6 +125,7 @@ EXPORT_SYMBOL(first_ec); + static int EC_FLAGS_MSI; /* Out-of-spec MSI controller */ + static int EC_FLAGS_VALIDATE_ECDT; /* ASUStec ECDTs need to be validated */ + static int EC_FLAGS_SKIP_DSDT_SCAN; /* Not all BIOS survive early DSDT scan */ ++static int EC_FLAGS_CLEAR_ON_RESUME; /* Needs acpi_ec_clear() on boot/resume */ + + /* -------------------------------------------------------------------------- + Transaction Management +@@ -203,13 +206,13 @@ unlock: + spin_unlock_irqrestore(&ec->curr_lock, flags); + } + +-static int acpi_ec_sync_query(struct acpi_ec *ec); ++static int acpi_ec_sync_query(struct acpi_ec *ec, u8 *data); + + static int ec_check_sci_sync(struct acpi_ec *ec, u8 state) + { + if (state & ACPI_EC_FLAG_SCI) { + if (!test_and_set_bit(EC_FLAGS_QUERY_PENDING, &ec->flags)) +- return acpi_ec_sync_query(ec); ++ return acpi_ec_sync_query(ec, NULL); + } + return 0; + } +@@ -449,6 +452,27 @@ int ec_transaction(u8 command, + + EXPORT_SYMBOL(ec_transaction); + ++/* ++ * Process _Q events that might have accumulated in the EC. ++ * Run with locked ec mutex. ++ */ ++static void acpi_ec_clear(struct acpi_ec *ec) ++{ ++ int i, status; ++ u8 value = 0; ++ ++ for (i = 0; i < ACPI_EC_CLEAR_MAX; i++) { ++ status = acpi_ec_sync_query(ec, &value); ++ if (status || !value) ++ break; ++ } ++ ++ if (unlikely(i == ACPI_EC_CLEAR_MAX)) ++ pr_warn("Warning: Maximum of %d stale EC events cleared\n", i); ++ else ++ pr_info("%d stale EC events cleared\n", i); ++} ++ + void acpi_ec_block_transactions(void) + { + struct acpi_ec *ec = first_ec; +@@ -472,6 +496,10 @@ void acpi_ec_unblock_transactions(void) + mutex_lock(&ec->lock); + /* Allow transactions to be carried out again */ + clear_bit(EC_FLAGS_BLOCKED, &ec->flags); ++ ++ if (EC_FLAGS_CLEAR_ON_RESUME) ++ acpi_ec_clear(ec); ++ + mutex_unlock(&ec->lock); + } + +@@ -561,13 +589,18 @@ static void acpi_ec_run(void *cxt) + kfree(handler); + } + +-static int acpi_ec_sync_query(struct acpi_ec *ec) ++static int acpi_ec_sync_query(struct acpi_ec *ec, u8 *data) + { + u8 value = 0; + int status; + struct acpi_ec_query_handler *handler, *copy; +- if ((status = acpi_ec_query_unlocked(ec, &value))) ++ ++ status = acpi_ec_query_unlocked(ec, &value); ++ if (data) ++ *data = value; ++ if (status) + return status; ++ + list_for_each_entry(handler, &ec->list, node) { + if (value == handler->query_bit) { + /* have custom handler for this bit */ +@@ -590,7 +623,7 @@ static void acpi_ec_gpe_query(void *ec_cxt) + if (!ec) + return; + mutex_lock(&ec->lock); +- acpi_ec_sync_query(ec); ++ acpi_ec_sync_query(ec, NULL); + mutex_unlock(&ec->lock); + } + +@@ -828,6 +861,13 @@ static int acpi_ec_add(struct acpi_device *device) + + /* EC is fully operational, allow queries */ + clear_bit(EC_FLAGS_QUERY_PENDING, &ec->flags); ++ ++ /* Clear stale _Q events if hardware might require that */ ++ if (EC_FLAGS_CLEAR_ON_RESUME) { ++ mutex_lock(&ec->lock); ++ acpi_ec_clear(ec); ++ mutex_unlock(&ec->lock); ++ } + return ret; + } + +@@ -929,6 +969,30 @@ static int ec_enlarge_storm_threshold(const struct dmi_system_id *id) + return 0; + } + ++/* ++ * On some hardware it is necessary to clear events accumulated by the EC during ++ * sleep. These ECs stop reporting GPEs until they are manually polled, if too ++ * many events are accumulated. (e.g. Samsung Series 5/9 notebooks) ++ * ++ * https://bugzilla.kernel.org/show_bug.cgi?id=44161 ++ * ++ * Ideally, the EC should also be instructed NOT to accumulate events during ++ * sleep (which Windows seems to do somehow), but the interface to control this ++ * behaviour is not known at this time. ++ * ++ * Models known to be affected are Samsung 530Uxx/535Uxx/540Uxx/550Pxx/900Xxx, ++ * however it is very likely that other Samsung models are affected. ++ * ++ * On systems which don't accumulate _Q events during sleep, this extra check ++ * should be harmless. ++ */ ++static int ec_clear_on_resume(const struct dmi_system_id *id) ++{ ++ pr_debug("Detected system needing EC poll on resume.\n"); ++ EC_FLAGS_CLEAR_ON_RESUME = 1; ++ return 0; ++} ++ + static struct dmi_system_id __initdata ec_dmi_table[] = { + { + ec_skip_dsdt_scan, "Compal JFL92", { +@@ -968,6 +1032,9 @@ static struct dmi_system_id __initdata ec_dmi_table[] = { + ec_validate_ecdt, "ASUS hardware", { + DMI_MATCH(DMI_SYS_VENDOR, "ASUSTek Computer Inc."), + DMI_MATCH(DMI_PRODUCT_NAME, "L4R"),}, NULL}, ++ { ++ ec_clear_on_resume, "Samsung hardware", { ++ DMI_MATCH(DMI_SYS_VENDOR, "SAMSUNG ELECTRONICS CO., LTD.")}, NULL}, + {}, + }; + +diff --git a/drivers/atm/ambassador.c b/drivers/atm/ambassador.c +index f8f41e0..89b30f3 100644 +--- a/drivers/atm/ambassador.c ++++ b/drivers/atm/ambassador.c +@@ -802,7 +802,7 @@ static void fill_rx_pool (amb_dev * dev, unsigned char pool, + } + // cast needed as there is no %? for pointer differences + PRINTD (DBG_SKB, "allocated skb at %p, head %p, area %li", +- skb, skb->head, (long) (skb_end_pointer(skb) - skb->head)); ++ skb, skb->head, (long) skb_end_offset(skb)); + rx.handle = virt_to_bus (skb); + rx.host_address = cpu_to_be32 (virt_to_bus (skb->data)); + if (rx_give (dev, &rx, pool)) +diff --git a/drivers/atm/idt77252.c b/drivers/atm/idt77252.c +index b0e75ce..81845fa 100644 +--- a/drivers/atm/idt77252.c ++++ b/drivers/atm/idt77252.c +@@ -1258,7 +1258,7 @@ idt77252_rx_raw(struct idt77252_dev *card) + tail = readl(SAR_REG_RAWCT); + + pci_dma_sync_single_for_cpu(card->pcidev, IDT77252_PRV_PADDR(queue), +- skb_end_pointer(queue) - queue->head - 16, ++ skb_end_offset(queue) - 16, + PCI_DMA_FROMDEVICE); + + while (head != tail) { +diff --git a/drivers/bluetooth/ath3k.c b/drivers/bluetooth/ath3k.c +index 3539f9b..6fe003a 100644 +--- a/drivers/bluetooth/ath3k.c ++++ b/drivers/bluetooth/ath3k.c +@@ -81,6 +81,7 @@ static struct usb_device_id ath3k_table[] = { + { USB_DEVICE(0x04CA, 0x3004) }, + { USB_DEVICE(0x04CA, 0x3005) }, + { USB_DEVICE(0x04CA, 0x3006) }, ++ { USB_DEVICE(0x04CA, 0x3007) }, + { USB_DEVICE(0x04CA, 0x3008) }, + { USB_DEVICE(0x13d3, 0x3362) }, + { USB_DEVICE(0x0CF3, 0xE004) }, +@@ -123,6 +124,7 @@ static struct usb_device_id ath3k_blist_tbl[] = { + { USB_DEVICE(0x04ca, 0x3004), .driver_info = BTUSB_ATH3012 }, + { USB_DEVICE(0x04ca, 0x3005), .driver_info = BTUSB_ATH3012 }, + { USB_DEVICE(0x04ca, 0x3006), .driver_info = BTUSB_ATH3012 }, ++ { USB_DEVICE(0x04ca, 0x3007), .driver_info = BTUSB_ATH3012 }, + { USB_DEVICE(0x04ca, 0x3008), .driver_info = BTUSB_ATH3012 }, + { USB_DEVICE(0x13d3, 0x3362), .driver_info = BTUSB_ATH3012 }, + { USB_DEVICE(0x0cf3, 0xe004), .driver_info = BTUSB_ATH3012 }, +diff --git a/drivers/bluetooth/btusb.c b/drivers/bluetooth/btusb.c +index f18b5a2..dddcb1d 100644 +--- a/drivers/bluetooth/btusb.c ++++ b/drivers/bluetooth/btusb.c +@@ -152,6 +152,7 @@ static struct usb_device_id blacklist_table[] = { + { USB_DEVICE(0x04ca, 0x3004), .driver_info = BTUSB_ATH3012 }, + { USB_DEVICE(0x04ca, 0x3005), .driver_info = BTUSB_ATH3012 }, + { USB_DEVICE(0x04ca, 0x3006), .driver_info = BTUSB_ATH3012 }, ++ { USB_DEVICE(0x04ca, 0x3007), .driver_info = BTUSB_ATH3012 }, + { USB_DEVICE(0x04ca, 0x3008), .driver_info = BTUSB_ATH3012 }, + { USB_DEVICE(0x13d3, 0x3362), .driver_info = BTUSB_ATH3012 }, + { USB_DEVICE(0x0cf3, 0xe004), .driver_info = BTUSB_ATH3012 }, +diff --git a/drivers/crypto/caam/error.c b/drivers/crypto/caam/error.c +index 7e2d54b..9b8d231 100644 +--- a/drivers/crypto/caam/error.c ++++ b/drivers/crypto/caam/error.c +@@ -16,9 +16,13 @@ + char *tmp; \ + \ + tmp = kmalloc(sizeof(format) + max_alloc, GFP_ATOMIC); \ +- sprintf(tmp, format, param); \ +- strcat(str, tmp); \ +- kfree(tmp); \ ++ if (likely(tmp)) { \ ++ sprintf(tmp, format, param); \ ++ strcat(str, tmp); \ ++ kfree(tmp); \ ++ } else { \ ++ strcat(str, "kmalloc failure in SPRINTFCAT"); \ ++ } \ + } + + static void report_jump_idx(u32 status, char *outstr) +diff --git a/drivers/dma/mv_xor.c b/drivers/dma/mv_xor.c +index 9a353c2..9b01145 100644 +--- a/drivers/dma/mv_xor.c ++++ b/drivers/dma/mv_xor.c +@@ -218,12 +218,10 @@ static void mv_set_mode(struct mv_xor_chan *chan, + + static void mv_chan_activate(struct mv_xor_chan *chan) + { +- u32 activation; +- + dev_dbg(chan->device->common.dev, " activate chan.\n"); +- activation = __raw_readl(XOR_ACTIVATION(chan)); +- activation |= 0x1; +- __raw_writel(activation, XOR_ACTIVATION(chan)); ++ ++ /* writel ensures all descriptors are flushed before activation */ ++ writel(BIT(0), XOR_ACTIVATION(chan)); + } + + static char mv_chan_is_busy(struct mv_xor_chan *chan) +diff --git a/drivers/gpu/drm/nouveau/nouveau_acpi.c b/drivers/gpu/drm/nouveau/nouveau_acpi.c +index 3df56c7..5ee8cca 100644 +--- a/drivers/gpu/drm/nouveau/nouveau_acpi.c ++++ b/drivers/gpu/drm/nouveau/nouveau_acpi.c +@@ -332,9 +332,6 @@ bool nouveau_acpi_rom_supported(struct pci_dev *pdev) + acpi_status status; + acpi_handle dhandle, rom_handle; + +- if (!nouveau_dsm_priv.dsm_detected && !nouveau_dsm_priv.optimus_detected) +- return false; +- + dhandle = DEVICE_ACPI_HANDLE(&pdev->dev); + if (!dhandle) + return false; +diff --git a/drivers/gpu/drm/radeon/radeon_bios.c b/drivers/gpu/drm/radeon/radeon_bios.c +index d306cc8..ccf324b 100644 +--- a/drivers/gpu/drm/radeon/radeon_bios.c ++++ b/drivers/gpu/drm/radeon/radeon_bios.c +@@ -173,6 +173,20 @@ static bool radeon_atrm_get_bios(struct radeon_device *rdev) + } + } + ++ if (!found) { ++ while ((pdev = pci_get_class(PCI_CLASS_DISPLAY_OTHER << 8, pdev)) != NULL) { ++ dhandle = DEVICE_ACPI_HANDLE(&pdev->dev); ++ if (!dhandle) ++ continue; ++ ++ status = acpi_get_handle(dhandle, "ATRM", &atrm_handle); ++ if (!ACPI_FAILURE(status)) { ++ found = true; ++ break; ++ } ++ } ++ } ++ + if (!found) + return false; + +diff --git a/drivers/gpu/drm/radeon/radeon_object.c b/drivers/gpu/drm/radeon/radeon_object.c +index f3ae607..3e35bbe 100644 +--- a/drivers/gpu/drm/radeon/radeon_object.c ++++ b/drivers/gpu/drm/radeon/radeon_object.c +@@ -513,22 +513,30 @@ int radeon_bo_fault_reserve_notify(struct ttm_buffer_object *bo) + rbo = container_of(bo, struct radeon_bo, tbo); + radeon_bo_check_tiling(rbo, 0, 0); + rdev = rbo->rdev; +- if (bo->mem.mem_type == TTM_PL_VRAM) { +- size = bo->mem.num_pages << PAGE_SHIFT; +- offset = bo->mem.start << PAGE_SHIFT; +- if ((offset + size) > rdev->mc.visible_vram_size) { +- /* hurrah the memory is not visible ! */ +- radeon_ttm_placement_from_domain(rbo, RADEON_GEM_DOMAIN_VRAM); +- rbo->placement.lpfn = rdev->mc.visible_vram_size >> PAGE_SHIFT; +- r = ttm_bo_validate(bo, &rbo->placement, false, true, false); +- if (unlikely(r != 0)) +- return r; +- offset = bo->mem.start << PAGE_SHIFT; +- /* this should not happen */ +- if ((offset + size) > rdev->mc.visible_vram_size) +- return -EINVAL; +- } ++ if (bo->mem.mem_type != TTM_PL_VRAM) ++ return 0; ++ ++ size = bo->mem.num_pages << PAGE_SHIFT; ++ offset = bo->mem.start << PAGE_SHIFT; ++ if ((offset + size) <= rdev->mc.visible_vram_size) ++ return 0; ++ ++ /* hurrah the memory is not visible ! */ ++ radeon_ttm_placement_from_domain(rbo, RADEON_GEM_DOMAIN_VRAM); ++ rbo->placement.lpfn = rdev->mc.visible_vram_size >> PAGE_SHIFT; ++ r = ttm_bo_validate(bo, &rbo->placement, false, true, false); ++ if (unlikely(r == -ENOMEM)) { ++ radeon_ttm_placement_from_domain(rbo, RADEON_GEM_DOMAIN_GTT); ++ return ttm_bo_validate(bo, &rbo->placement, false, true, false); ++ } else if (unlikely(r != 0)) { ++ return r; + } ++ ++ offset = bo->mem.start << PAGE_SHIFT; ++ /* this should never happen */ ++ if ((offset + size) > rdev->mc.visible_vram_size) ++ return -EINVAL; ++ + return 0; + } + +diff --git a/drivers/gpu/drm/vmwgfx/vmwgfx_execbuf.c b/drivers/gpu/drm/vmwgfx/vmwgfx_execbuf.c +index 40932fb..84ba033 100644 +--- a/drivers/gpu/drm/vmwgfx/vmwgfx_execbuf.c ++++ b/drivers/gpu/drm/vmwgfx/vmwgfx_execbuf.c +@@ -558,14 +558,36 @@ static int vmw_cmd_dma(struct vmw_private *dev_priv, + } *cmd; + int ret; + struct vmw_resource *res; ++ SVGA3dCmdSurfaceDMASuffix *suffix; ++ uint32_t bo_size; + + cmd = container_of(header, struct vmw_dma_cmd, header); ++ suffix = (SVGA3dCmdSurfaceDMASuffix *)((unsigned long) &cmd->dma + ++ header->size - sizeof(*suffix)); ++ ++ /* Make sure device and verifier stays in sync. */ ++ if (unlikely(suffix->suffixSize != sizeof(*suffix))) { ++ DRM_ERROR("Invalid DMA suffix size.\n"); ++ return -EINVAL; ++ } ++ + ret = vmw_translate_guest_ptr(dev_priv, sw_context, + &cmd->dma.guest.ptr, + &vmw_bo); + if (unlikely(ret != 0)) + return ret; + ++ /* Make sure DMA doesn't cross BO boundaries. */ ++ bo_size = vmw_bo->base.num_pages * PAGE_SIZE; ++ if (unlikely(cmd->dma.guest.ptr.offset > bo_size)) { ++ DRM_ERROR("Invalid DMA offset.\n"); ++ return -EINVAL; ++ } ++ ++ bo_size -= cmd->dma.guest.ptr.offset; ++ if (unlikely(suffix->maximumOffset > bo_size)) ++ suffix->maximumOffset = bo_size; ++ + bo = &vmw_bo->base; + ret = vmw_user_surface_lookup_handle(dev_priv, sw_context->tfile, + cmd->dma.host.sid, &srf); +diff --git a/drivers/hid/hid-ids.h b/drivers/hid/hid-ids.h +index ca2b3e6..ccc89b0 100644 +--- a/drivers/hid/hid-ids.h ++++ b/drivers/hid/hid-ids.h +@@ -678,6 +678,13 @@ + #define USB_DEVICE_ID_SYMBOL_SCANNER_1 0x0800 + #define USB_DEVICE_ID_SYMBOL_SCANNER_2 0x1300 + ++#define USB_VENDOR_ID_SYNAPTICS 0x06cb ++#define USB_DEVICE_ID_SYNAPTICS_LTS1 0x0af8 ++#define USB_DEVICE_ID_SYNAPTICS_LTS2 0x1d10 ++#define USB_DEVICE_ID_SYNAPTICS_HD 0x0ac3 ++#define USB_DEVICE_ID_SYNAPTICS_QUAD_HD 0x1ac3 ++#define USB_DEVICE_ID_SYNAPTICS_TP_V103 0x5710 ++ + #define USB_VENDOR_ID_THRUSTMASTER 0x044f + + #define USB_VENDOR_ID_TOPSEED 0x0766 +diff --git a/drivers/hid/usbhid/hid-quirks.c b/drivers/hid/usbhid/hid-quirks.c +index f98fbad..71c2582 100644 +--- a/drivers/hid/usbhid/hid-quirks.c ++++ b/drivers/hid/usbhid/hid-quirks.c +@@ -100,6 +100,11 @@ static const struct hid_blacklist { + { USB_VENDOR_ID_CHICONY, USB_DEVICE_ID_CHICONY_WIRELESS, HID_QUIRK_MULTI_INPUT }, + { USB_VENDOR_ID_SIGMA_MICRO, USB_DEVICE_ID_SIGMA_MICRO_KEYBOARD, HID_QUIRK_NO_INIT_REPORTS }, + { USB_VENDOR_ID_NTRIG, USB_DEVICE_ID_NTRIG_DUOSENSE, HID_QUIRK_NO_INIT_REPORTS }, ++ { USB_VENDOR_ID_SYNAPTICS, USB_DEVICE_ID_SYNAPTICS_LTS1, HID_QUIRK_NO_INIT_REPORTS }, ++ { USB_VENDOR_ID_SYNAPTICS, USB_DEVICE_ID_SYNAPTICS_LTS2, HID_QUIRK_NO_INIT_REPORTS }, ++ { USB_VENDOR_ID_SYNAPTICS, USB_DEVICE_ID_SYNAPTICS_HD, HID_QUIRK_NO_INIT_REPORTS }, ++ { USB_VENDOR_ID_SYNAPTICS, USB_DEVICE_ID_SYNAPTICS_QUAD_HD, HID_QUIRK_NO_INIT_REPORTS }, ++ { USB_VENDOR_ID_SYNAPTICS, USB_DEVICE_ID_SYNAPTICS_TP_V103, HID_QUIRK_NO_INIT_REPORTS }, + + { 0, 0 } + }; +diff --git a/drivers/hwmon/emc1403.c b/drivers/hwmon/emc1403.c +index cd2a6e4..7da08ac 100644 +--- a/drivers/hwmon/emc1403.c ++++ b/drivers/hwmon/emc1403.c +@@ -159,7 +159,7 @@ static ssize_t store_hyst(struct device *dev, + if (retval < 0) + goto fail; + +- hyst = val - retval * 1000; ++ hyst = retval * 1000 - val; + hyst = DIV_ROUND_CLOSEST(hyst, 1000); + if (hyst < 0 || hyst > 255) { + retval = -ERANGE; +@@ -290,7 +290,7 @@ static int emc1403_detect(struct i2c_client *client, + } + + id = i2c_smbus_read_byte_data(client, THERMAL_REVISION_REG); +- if (id != 0x01) ++ if (id < 0x01 || id > 0x04) + return -ENODEV; + + return 0; +diff --git a/drivers/i2c/busses/i2c-designware-core.c b/drivers/i2c/busses/i2c-designware-core.c +index 3c2812f..aadb398 100644 +--- a/drivers/i2c/busses/i2c-designware-core.c ++++ b/drivers/i2c/busses/i2c-designware-core.c +@@ -346,6 +346,9 @@ static void i2c_dw_xfer_init(struct dw_i2c_dev *dev) + ic_con &= ~DW_IC_CON_10BITADDR_MASTER; + dw_writel(dev, ic_con, DW_IC_CON); + ++ /* enforce disabled interrupts (due to HW issues) */ ++ i2c_dw_disable_int(dev); ++ + /* Enable the adapter */ + dw_writel(dev, 1, DW_IC_ENABLE); + +diff --git a/drivers/i2c/busses/i2c-s3c2410.c b/drivers/i2c/busses/i2c-s3c2410.c +index 4c17180..7d6d2b7 100644 +--- a/drivers/i2c/busses/i2c-s3c2410.c ++++ b/drivers/i2c/busses/i2c-s3c2410.c +@@ -1082,10 +1082,10 @@ static int s3c24xx_i2c_resume(struct device *dev) + struct platform_device *pdev = to_platform_device(dev); + struct s3c24xx_i2c *i2c = platform_get_drvdata(pdev); + +- i2c->suspended = 0; + clk_enable(i2c->clk); + s3c24xx_i2c_init(i2c); + clk_disable(i2c->clk); ++ i2c->suspended = 0; + + return 0; + } +diff --git a/drivers/input/mouse/elantech.c b/drivers/input/mouse/elantech.c +index e2a9867..342a059 100644 +--- a/drivers/input/mouse/elantech.c ++++ b/drivers/input/mouse/elantech.c +@@ -11,6 +11,7 @@ + */ + + #include <linux/delay.h> ++#include <linux/dmi.h> + #include <linux/slab.h> + #include <linux/module.h> + #include <linux/input.h> +@@ -783,7 +784,11 @@ static int elantech_set_absolute_mode(struct psmouse *psmouse) + break; + + case 3: +- etd->reg_10 = 0x0b; ++ if (etd->set_hw_resolution) ++ etd->reg_10 = 0x0b; ++ else ++ etd->reg_10 = 0x03; ++ + if (elantech_write_reg(psmouse, 0x10, etd->reg_10)) + rc = -1; + +@@ -1206,6 +1211,22 @@ static int elantech_reconnect(struct psmouse *psmouse) + } + + /* ++ * Some hw_version 3 models go into error state when we try to set bit 3 of r10 ++ */ ++static const struct dmi_system_id no_hw_res_dmi_table[] = { ++#if defined(CONFIG_DMI) && defined(CONFIG_X86) ++ { ++ /* Gigabyte U2442 */ ++ .matches = { ++ DMI_MATCH(DMI_SYS_VENDOR, "GIGABYTE"), ++ DMI_MATCH(DMI_PRODUCT_NAME, "U2442"), ++ }, ++ }, ++#endif ++ { } ++}; ++ ++/* + * determine hardware version and set some properties according to it. + */ + static int elantech_set_properties(struct elantech_data *etd) +@@ -1254,6 +1275,9 @@ static int elantech_set_properties(struct elantech_data *etd) + etd->reports_pressure = true; + } + ++ /* Enable real hardware resolution on hw_version 3 ? */ ++ etd->set_hw_resolution = !dmi_check_system(no_hw_res_dmi_table); ++ + return 0; + } + +diff --git a/drivers/input/mouse/elantech.h b/drivers/input/mouse/elantech.h +index 9e5f1aa..3569bed 100644 +--- a/drivers/input/mouse/elantech.h ++++ b/drivers/input/mouse/elantech.h +@@ -128,6 +128,7 @@ struct elantech_data { + bool paritycheck; + bool jumpy_cursor; + bool reports_pressure; ++ bool set_hw_resolution; + unsigned char hw_version; + unsigned int fw_version; + unsigned int single_finger_reports; +diff --git a/drivers/input/mouse/synaptics.c b/drivers/input/mouse/synaptics.c +index 886c191..8a39807 100644 +--- a/drivers/input/mouse/synaptics.c ++++ b/drivers/input/mouse/synaptics.c +@@ -1394,6 +1394,14 @@ static const struct dmi_system_id min_max_dmi_table[] __initconst = { + .driver_data = (int []){1232, 5710, 1156, 4696}, + }, + { ++ /* Lenovo ThinkPad Edge E431 */ ++ .matches = { ++ DMI_MATCH(DMI_SYS_VENDOR, "LENOVO"), ++ DMI_MATCH(DMI_PRODUCT_VERSION, "ThinkPad Edge E431"), ++ }, ++ .driver_data = (int []){1024, 5022, 2508, 4832}, ++ }, ++ { + /* Lenovo ThinkPad T431s */ + .matches = { + DMI_MATCH(DMI_SYS_VENDOR, "LENOVO"), +diff --git a/drivers/md/md.c b/drivers/md/md.c +index 2d0544c..db4b4a8 100644 +--- a/drivers/md/md.c ++++ b/drivers/md/md.c +@@ -8122,7 +8122,8 @@ static int md_notify_reboot(struct notifier_block *this, + if (mddev_trylock(mddev)) { + if (mddev->pers) + __md_stop_writes(mddev); +- mddev->safemode = 2; ++ if (mddev->persistent) ++ mddev->safemode = 2; + mddev_unlock(mddev); + } + need_delay = 1; +diff --git a/drivers/media/media-device.c b/drivers/media/media-device.c +index 6edc9ba..298703f 100644 +--- a/drivers/media/media-device.c ++++ b/drivers/media/media-device.c +@@ -90,6 +90,7 @@ static long media_device_enum_entities(struct media_device *mdev, + struct media_entity *ent; + struct media_entity_desc u_ent; + ++ memset(&u_ent, 0, sizeof(u_ent)); + if (copy_from_user(&u_ent.id, &uent->id, sizeof(u_ent.id))) + return -EFAULT; + +diff --git a/drivers/media/video/ov7670.c b/drivers/media/video/ov7670.c +index 8aa0585..17125d9 100644 +--- a/drivers/media/video/ov7670.c ++++ b/drivers/media/video/ov7670.c +@@ -937,7 +937,7 @@ static int ov7670_enum_framesizes(struct v4l2_subdev *sd, + * windows that fall outside that. + */ + for (i = 0; i < N_WIN_SIZES; i++) { +- struct ov7670_win_size *win = &ov7670_win_sizes[index]; ++ struct ov7670_win_size *win = &ov7670_win_sizes[i]; + if (info->min_width && win->width < info->min_width) + continue; + if (info->min_height && win->height < info->min_height) +diff --git a/drivers/media/video/v4l2-compat-ioctl32.c b/drivers/media/video/v4l2-compat-ioctl32.c +index c68531b..2671959 100644 +--- a/drivers/media/video/v4l2-compat-ioctl32.c ++++ b/drivers/media/video/v4l2-compat-ioctl32.c +@@ -178,6 +178,9 @@ struct v4l2_create_buffers32 { + + static int __get_v4l2_format32(struct v4l2_format *kp, struct v4l2_format32 __user *up) + { ++ if (get_user(kp->type, &up->type)) ++ return -EFAULT; ++ + switch (kp->type) { + case V4L2_BUF_TYPE_VIDEO_CAPTURE: + case V4L2_BUF_TYPE_VIDEO_OUTPUT: +@@ -208,17 +211,16 @@ static int __get_v4l2_format32(struct v4l2_format *kp, struct v4l2_format32 __us + + static int get_v4l2_format32(struct v4l2_format *kp, struct v4l2_format32 __user *up) + { +- if (!access_ok(VERIFY_READ, up, sizeof(struct v4l2_format32)) || +- get_user(kp->type, &up->type)) +- return -EFAULT; ++ if (!access_ok(VERIFY_READ, up, sizeof(struct v4l2_format32))) ++ return -EFAULT; + return __get_v4l2_format32(kp, up); + } + + static int get_v4l2_create32(struct v4l2_create_buffers *kp, struct v4l2_create_buffers32 __user *up) + { + if (!access_ok(VERIFY_READ, up, sizeof(struct v4l2_create_buffers32)) || +- copy_from_user(kp, up, offsetof(struct v4l2_create_buffers32, format.fmt))) +- return -EFAULT; ++ copy_from_user(kp, up, offsetof(struct v4l2_create_buffers32, format))) ++ return -EFAULT; + return __get_v4l2_format32(&kp->format, &up->format); + } + +diff --git a/drivers/net/bonding/bond_main.c b/drivers/net/bonding/bond_main.c +index 1bf36ac..5af2a8f 100644 +--- a/drivers/net/bonding/bond_main.c ++++ b/drivers/net/bonding/bond_main.c +@@ -4914,6 +4914,7 @@ static int __init bonding_init(void) + out: + return res; + err: ++ bond_destroy_debugfs(); + rtnl_link_unregister(&bond_link_ops); + err_link: + unregister_pernet_subsys(&bond_net_ops); +diff --git a/drivers/net/can/sja1000/peak_pci.c b/drivers/net/can/sja1000/peak_pci.c +index 2c7f503..5192f86 100644 +--- a/drivers/net/can/sja1000/peak_pci.c ++++ b/drivers/net/can/sja1000/peak_pci.c +@@ -39,9 +39,9 @@ MODULE_LICENSE("GPL v2"); + #define DRV_NAME "peak_pci" + + struct peak_pci_chan { +- void __iomem *cfg_base; /* Common for all channels */ +- struct net_device *next_dev; /* Chain of network devices */ +- u16 icr_mask; /* Interrupt mask for fast ack */ ++ void __iomem *cfg_base; /* Common for all channels */ ++ struct net_device *prev_dev; /* Chain of network devices */ ++ u16 icr_mask; /* Interrupt mask for fast ack */ + }; + + #define PEAK_PCI_CAN_CLOCK (16000000 / 2) +@@ -98,7 +98,7 @@ static int __devinit peak_pci_probe(struct pci_dev *pdev, + { + struct sja1000_priv *priv; + struct peak_pci_chan *chan; +- struct net_device *dev, *dev0 = NULL; ++ struct net_device *dev, *prev_dev; + void __iomem *cfg_base, *reg_base; + u16 sub_sys_id, icr; + int i, err, channels; +@@ -196,18 +196,14 @@ static int __devinit peak_pci_probe(struct pci_dev *pdev, + } + + /* Create chain of SJA1000 devices */ +- if (i == 0) +- dev0 = dev; +- else +- chan->next_dev = dev; ++ chan->prev_dev = pci_get_drvdata(pdev); ++ pci_set_drvdata(pdev, dev); + + dev_info(&pdev->dev, + "%s at reg_base=0x%p cfg_base=0x%p irq=%d\n", + dev->name, priv->reg_base, chan->cfg_base, dev->irq); + } + +- pci_set_drvdata(pdev, dev0); +- + /* Enable interrupts */ + writew(icr, cfg_base + PITA_ICR + 2); + +@@ -217,12 +213,13 @@ failure_remove_channels: + /* Disable interrupts */ + writew(0x0, cfg_base + PITA_ICR + 2); + +- for (dev = dev0; dev; dev = chan->next_dev) { +- unregister_sja1000dev(dev); +- free_sja1000dev(dev); ++ for (dev = pci_get_drvdata(pdev); dev; dev = prev_dev) { + priv = netdev_priv(dev); + chan = priv->priv; +- dev = chan->next_dev; ++ prev_dev = chan->prev_dev; ++ ++ unregister_sja1000dev(dev); ++ free_sja1000dev(dev); + } + + pci_iounmap(pdev, reg_base); +@@ -241,7 +238,7 @@ failure_disable_pci: + + static void __devexit peak_pci_remove(struct pci_dev *pdev) + { +- struct net_device *dev = pci_get_drvdata(pdev); /* First device */ ++ struct net_device *dev = pci_get_drvdata(pdev); /* Last device */ + struct sja1000_priv *priv = netdev_priv(dev); + struct peak_pci_chan *chan = priv->priv; + void __iomem *cfg_base = chan->cfg_base; +@@ -252,10 +249,12 @@ static void __devexit peak_pci_remove(struct pci_dev *pdev) + + /* Loop over all registered devices */ + while (1) { ++ struct net_device *prev_dev = chan->prev_dev; ++ + dev_info(&pdev->dev, "removing device %s\n", dev->name); + unregister_sja1000dev(dev); + free_sja1000dev(dev); +- dev = chan->next_dev; ++ dev = prev_dev; + if (!dev) + break; + priv = netdev_priv(dev); +diff --git a/drivers/net/ethernet/broadcom/tg3.c b/drivers/net/ethernet/broadcom/tg3.c +index c77c462..2615433 100644 +--- a/drivers/net/ethernet/broadcom/tg3.c ++++ b/drivers/net/ethernet/broadcom/tg3.c +@@ -10656,7 +10656,9 @@ static int tg3_set_ringparam(struct net_device *dev, struct ethtool_ringparam *e + if (tg3_flag(tp, MAX_RXPEND_64) && + tp->rx_pending > 63) + tp->rx_pending = 63; +- tp->rx_jumbo_pending = ering->rx_jumbo_pending; ++ ++ if (tg3_flag(tp, JUMBO_RING_ENABLE)) ++ tp->rx_jumbo_pending = ering->rx_jumbo_pending; + + for (i = 0; i < tp->irq_max; i++) + tp->napi[i].tx_pending = ering->tx_pending; +diff --git a/drivers/net/macvlan.c b/drivers/net/macvlan.c +index 301b39e..b74cdf6 100644 +--- a/drivers/net/macvlan.c ++++ b/drivers/net/macvlan.c +@@ -236,11 +236,9 @@ static int macvlan_queue_xmit(struct sk_buff *skb, struct net_device *dev) + const struct macvlan_dev *vlan = netdev_priv(dev); + const struct macvlan_port *port = vlan->port; + const struct macvlan_dev *dest; +- __u8 ip_summed = skb->ip_summed; + + if (vlan->mode == MACVLAN_MODE_BRIDGE) { + const struct ethhdr *eth = (void *)skb->data; +- skb->ip_summed = CHECKSUM_UNNECESSARY; + + /* send to other bridge ports directly */ + if (is_multicast_ether_addr(eth->h_dest)) { +@@ -258,7 +256,6 @@ static int macvlan_queue_xmit(struct sk_buff *skb, struct net_device *dev) + } + + xmit_world: +- skb->ip_summed = ip_summed; + skb->dev = vlan->lowerdev; + return dev_queue_xmit(skb); + } +@@ -394,8 +391,10 @@ static void macvlan_change_rx_flags(struct net_device *dev, int change) + struct macvlan_dev *vlan = netdev_priv(dev); + struct net_device *lowerdev = vlan->lowerdev; + +- if (change & IFF_ALLMULTI) +- dev_set_allmulti(lowerdev, dev->flags & IFF_ALLMULTI ? 1 : -1); ++ if (dev->flags & IFF_UP) { ++ if (change & IFF_ALLMULTI) ++ dev_set_allmulti(lowerdev, dev->flags & IFF_ALLMULTI ? 1 : -1); ++ } + } + + static void macvlan_set_multicast_list(struct net_device *dev) +diff --git a/drivers/net/wimax/i2400m/usb-rx.c b/drivers/net/wimax/i2400m/usb-rx.c +index e325768..b78ee67 100644 +--- a/drivers/net/wimax/i2400m/usb-rx.c ++++ b/drivers/net/wimax/i2400m/usb-rx.c +@@ -277,7 +277,7 @@ retry: + d_printf(1, dev, "RX: size changed to %d, received %d, " + "copied %d, capacity %ld\n", + rx_size, read_size, rx_skb->len, +- (long) (skb_end_pointer(new_skb) - new_skb->head)); ++ (long) skb_end_offset(new_skb)); + goto retry; + } + /* In most cases, it happens due to the hardware scheduling a +diff --git a/drivers/net/wireless/rt2x00/rt2x00mac.c b/drivers/net/wireless/rt2x00/rt2x00mac.c +index 5c38281..1d4c579 100644 +--- a/drivers/net/wireless/rt2x00/rt2x00mac.c ++++ b/drivers/net/wireless/rt2x00/rt2x00mac.c +@@ -651,20 +651,18 @@ void rt2x00mac_bss_info_changed(struct ieee80211_hw *hw, + bss_conf->bssid); + + /* +- * Update the beacon. This is only required on USB devices. PCI +- * devices fetch beacons periodically. +- */ +- if (changes & BSS_CHANGED_BEACON && rt2x00_is_usb(rt2x00dev)) +- rt2x00queue_update_beacon(rt2x00dev, vif); +- +- /* + * Start/stop beaconing. + */ + if (changes & BSS_CHANGED_BEACON_ENABLED) { + if (!bss_conf->enable_beacon && intf->enable_beacon) { +- rt2x00queue_clear_beacon(rt2x00dev, vif); + rt2x00dev->intf_beaconing--; + intf->enable_beacon = false; ++ /* ++ * Clear beacon in the H/W for this vif. This is needed ++ * to disable beaconing on this particular interface ++ * and keep it running on other interfaces. ++ */ ++ rt2x00queue_clear_beacon(rt2x00dev, vif); + + if (rt2x00dev->intf_beaconing == 0) { + /* +@@ -675,11 +673,15 @@ void rt2x00mac_bss_info_changed(struct ieee80211_hw *hw, + rt2x00queue_stop_queue(rt2x00dev->bcn); + mutex_unlock(&intf->beacon_skb_mutex); + } +- +- + } else if (bss_conf->enable_beacon && !intf->enable_beacon) { + rt2x00dev->intf_beaconing++; + intf->enable_beacon = true; ++ /* ++ * Upload beacon to the H/W. This is only required on ++ * USB devices. PCI devices fetch beacons periodically. ++ */ ++ if (rt2x00_is_usb(rt2x00dev)) ++ rt2x00queue_update_beacon(rt2x00dev, vif); + + if (rt2x00dev->intf_beaconing == 1) { + /* +diff --git a/drivers/net/wireless/rtlwifi/rtl8192cu/hw.c b/drivers/net/wireless/rtlwifi/rtl8192cu/hw.c +index d3920da..79fc4b7 100644 +--- a/drivers/net/wireless/rtlwifi/rtl8192cu/hw.c ++++ b/drivers/net/wireless/rtlwifi/rtl8192cu/hw.c +@@ -1158,12 +1158,23 @@ int rtl92cu_hw_init(struct ieee80211_hw *hw) + struct rtl_ps_ctl *ppsc = rtl_psc(rtl_priv(hw)); + int err = 0; + static bool iqk_initialized; ++ unsigned long flags; ++ ++ /* As this function can take a very long time (up to 350 ms) ++ * and can be called with irqs disabled, reenable the irqs ++ * to let the other devices continue being serviced. ++ * ++ * It is safe doing so since our own interrupts will only be enabled ++ * in a subsequent step. ++ */ ++ local_save_flags(flags); ++ local_irq_enable(); + + rtlhal->hw_type = HARDWARE_TYPE_RTL8192CU; + err = _rtl92cu_init_mac(hw); + if (err) { + RT_TRACE(rtlpriv, COMP_ERR, DBG_EMERG, ("init mac failed!\n")); +- return err; ++ goto exit; + } + err = rtl92c_download_fw(hw); + if (err) { +@@ -1171,7 +1182,7 @@ int rtl92cu_hw_init(struct ieee80211_hw *hw) + ("Failed to download FW. Init HW without FW now..\n")); + err = 1; + rtlhal->fw_ready = false; +- return err; ++ goto exit; + } else { + rtlhal->fw_ready = true; + } +@@ -1212,6 +1223,8 @@ int rtl92cu_hw_init(struct ieee80211_hw *hw) + _update_mac_setting(hw); + rtl92c_dm_init(hw); + _dump_registers(hw); ++exit: ++ local_irq_restore(flags); + return err; + } + +diff --git a/drivers/pci/hotplug/shpchp_ctrl.c b/drivers/pci/hotplug/shpchp_ctrl.c +index 3ffc1b2..b888675 100644 +--- a/drivers/pci/hotplug/shpchp_ctrl.c ++++ b/drivers/pci/hotplug/shpchp_ctrl.c +@@ -285,8 +285,8 @@ static int board_added(struct slot *p_slot) + return WRONG_BUS_FREQUENCY; + } + +- bsp = ctrl->pci_dev->bus->cur_bus_speed; +- msp = ctrl->pci_dev->bus->max_bus_speed; ++ bsp = ctrl->pci_dev->subordinate->cur_bus_speed; ++ msp = ctrl->pci_dev->subordinate->max_bus_speed; + + /* Check if there are other slots or devices on the same bus */ + if (!list_empty(&ctrl->pci_dev->subordinate->devices)) +diff --git a/drivers/platform/x86/thinkpad_acpi.c b/drivers/platform/x86/thinkpad_acpi.c +index 8e6c4fa..2a8d6aa 100644 +--- a/drivers/platform/x86/thinkpad_acpi.c ++++ b/drivers/platform/x86/thinkpad_acpi.c +@@ -3405,7 +3405,7 @@ static int __init hotkey_init(struct ibm_init_struct *iibm) + /* Do not issue duplicate brightness change events to + * userspace. tpacpi_detect_brightness_capabilities() must have + * been called before this point */ +- if (tp_features.bright_acpimode && acpi_video_backlight_support()) { ++ if (acpi_video_backlight_support()) { + pr_info("This ThinkPad has standard ACPI backlight " + "brightness control, supported by the ACPI " + "video driver\n"); +diff --git a/drivers/scsi/mpt2sas/mpt2sas_scsih.c b/drivers/scsi/mpt2sas/mpt2sas_scsih.c +index 987c6d6..01780a9 100644 +--- a/drivers/scsi/mpt2sas/mpt2sas_scsih.c ++++ b/drivers/scsi/mpt2sas/mpt2sas_scsih.c +@@ -8166,7 +8166,6 @@ _scsih_suspend(struct pci_dev *pdev, pm_message_t state) + + mpt2sas_base_free_resources(ioc); + pci_save_state(pdev); +- pci_disable_device(pdev); + pci_set_power_state(pdev, device_state); + return 0; + } +diff --git a/drivers/staging/octeon/ethernet-tx.c b/drivers/staging/octeon/ethernet-tx.c +index 2542c37..c5da0d2 100644 +--- a/drivers/staging/octeon/ethernet-tx.c ++++ b/drivers/staging/octeon/ethernet-tx.c +@@ -344,7 +344,7 @@ int cvm_oct_xmit(struct sk_buff *skb, struct net_device *dev) + } + if (unlikely + (skb->truesize != +- sizeof(*skb) + skb_end_pointer(skb) - skb->head)) { ++ sizeof(*skb) + skb_end_offset(skb))) { + /* + printk("TX buffer truesize has been changed\n"); + */ +diff --git a/drivers/tty/hvc/hvc_console.c b/drivers/tty/hvc/hvc_console.c +index 7b97e7e..443547b 100644 +--- a/drivers/tty/hvc/hvc_console.c ++++ b/drivers/tty/hvc/hvc_console.c +@@ -190,7 +190,7 @@ static struct tty_driver *hvc_console_device(struct console *c, int *index) + return hvc_driver; + } + +-static int __init hvc_console_setup(struct console *co, char *options) ++static int hvc_console_setup(struct console *co, char *options) + { + if (co->index < 0 || co->index >= MAX_NR_HVC_CONSOLES) + return -ENODEV; +diff --git a/drivers/usb/storage/shuttle_usbat.c b/drivers/usb/storage/shuttle_usbat.c +index 0b00091..ff8aeee 100644 +--- a/drivers/usb/storage/shuttle_usbat.c ++++ b/drivers/usb/storage/shuttle_usbat.c +@@ -1846,7 +1846,7 @@ static int usbat_probe(struct usb_interface *intf, + us->transport_name = "Shuttle USBAT"; + us->transport = usbat_flash_transport; + us->transport_reset = usb_stor_CB_reset; +- us->max_lun = 1; ++ us->max_lun = 0; + + result = usb_stor_probe2(us); + return result; +diff --git a/drivers/usb/storage/unusual_devs.h b/drivers/usb/storage/unusual_devs.h +index 08711bc..49d222d 100644 +--- a/drivers/usb/storage/unusual_devs.h ++++ b/drivers/usb/storage/unusual_devs.h +@@ -226,6 +226,20 @@ UNUSUAL_DEV( 0x0421, 0x0495, 0x0370, 0x0370, + USB_SC_DEVICE, USB_PR_DEVICE, NULL, + US_FL_MAX_SECTORS_64 ), + ++/* Reported by Daniele Forsi <dforsi@gmail.com> */ ++UNUSUAL_DEV( 0x0421, 0x04b9, 0x0350, 0x0350, ++ "Nokia", ++ "5300", ++ USB_SC_DEVICE, USB_PR_DEVICE, NULL, ++ US_FL_MAX_SECTORS_64 ), ++ ++/* Patch submitted by Victor A. Santos <victoraur.santos@gmail.com> */ ++UNUSUAL_DEV( 0x0421, 0x05af, 0x0742, 0x0742, ++ "Nokia", ++ "305", ++ USB_SC_DEVICE, USB_PR_DEVICE, NULL, ++ US_FL_MAX_SECTORS_64), ++ + /* Patch submitted by Mikhail Zolotaryov <lebon@lebon.org.ua> */ + UNUSUAL_DEV( 0x0421, 0x06aa, 0x1110, 0x1110, + "Nokia", +diff --git a/drivers/video/tgafb.c b/drivers/video/tgafb.c +index ac2cf6d..3b15bca 100644 +--- a/drivers/video/tgafb.c ++++ b/drivers/video/tgafb.c +@@ -192,6 +192,8 @@ tgafb_check_var(struct fb_var_screeninfo *var, struct fb_info *info) + + if (var->xres_virtual != var->xres || var->yres_virtual != var->yres) + return -EINVAL; ++ if (var->xres * var->yres * (var->bits_per_pixel >> 3) > info->fix.smem_len) ++ return -EINVAL; + if (var->nonstd) + return -EINVAL; + if (1000000000 / var->pixclock > TGA_PLL_MAX_FREQ) +@@ -272,6 +274,7 @@ tgafb_set_par(struct fb_info *info) + par->yres = info->var.yres; + par->pll_freq = pll_freq = 1000000000 / info->var.pixclock; + par->bits_per_pixel = info->var.bits_per_pixel; ++ info->fix.line_length = par->xres * (par->bits_per_pixel >> 3); + + tga_type = par->tga_type; + +@@ -1318,6 +1321,7 @@ tgafb_init_fix(struct fb_info *info) + int tga_bus_tc = TGA_BUS_TC(par->dev); + u8 tga_type = par->tga_type; + const char *tga_type_name = NULL; ++ unsigned memory_size; + + switch (tga_type) { + case TGA_TYPE_8PLANE: +@@ -1325,21 +1329,25 @@ tgafb_init_fix(struct fb_info *info) + tga_type_name = "Digital ZLXp-E1"; + if (tga_bus_tc) + tga_type_name = "Digital ZLX-E1"; ++ memory_size = 2097152; + break; + case TGA_TYPE_24PLANE: + if (tga_bus_pci) + tga_type_name = "Digital ZLXp-E2"; + if (tga_bus_tc) + tga_type_name = "Digital ZLX-E2"; ++ memory_size = 8388608; + break; + case TGA_TYPE_24PLUSZ: + if (tga_bus_pci) + tga_type_name = "Digital ZLXp-E3"; + if (tga_bus_tc) + tga_type_name = "Digital ZLX-E3"; ++ memory_size = 16777216; + break; + default: + tga_type_name = "Unknown"; ++ memory_size = 16777216; + break; + } + +@@ -1351,9 +1359,8 @@ tgafb_init_fix(struct fb_info *info) + ? FB_VISUAL_PSEUDOCOLOR + : FB_VISUAL_DIRECTCOLOR); + +- info->fix.line_length = par->xres * (par->bits_per_pixel >> 3); + info->fix.smem_start = (size_t) par->tga_fb_base; +- info->fix.smem_len = info->fix.line_length * par->yres; ++ info->fix.smem_len = memory_size; + info->fix.mmio_start = (size_t) par->tga_regs_base; + info->fix.mmio_len = 512; + +@@ -1478,6 +1485,9 @@ tgafb_register(struct device *dev) + modedb_tga = &modedb_tc; + modedbsize_tga = 1; + } ++ ++ tgafb_init_fix(info); ++ + ret = fb_find_mode(&info->var, info, + mode_option ? mode_option : mode_option_tga, + modedb_tga, modedbsize_tga, NULL, +@@ -1495,7 +1505,6 @@ tgafb_register(struct device *dev) + } + + tgafb_set_par(info); +- tgafb_init_fix(info); + + if (register_framebuffer(info) < 0) { + printk(KERN_ERR "tgafb: Could not register framebuffer\n"); +diff --git a/fs/nfsd/nfs4acl.c b/fs/nfsd/nfs4acl.c +index 9c51aff..435a9be1 100644 +--- a/fs/nfsd/nfs4acl.c ++++ b/fs/nfsd/nfs4acl.c +@@ -373,8 +373,10 @@ sort_pacl(struct posix_acl *pacl) + * by uid/gid. */ + int i, j; + +- if (pacl->a_count <= 4) +- return; /* no users or groups */ ++ /* no users or groups */ ++ if (!pacl || pacl->a_count <= 4) ++ return; ++ + i = 1; + while (pacl->a_entries[i].e_tag == ACL_USER) + i++; +@@ -498,13 +500,12 @@ posix_state_to_acl(struct posix_acl_state *state, unsigned int flags) + + /* + * ACLs with no ACEs are treated differently in the inheritable +- * and effective cases: when there are no inheritable ACEs, we +- * set a zero-length default posix acl: ++ * and effective cases: when there are no inheritable ACEs, ++ * calls ->set_acl with a NULL ACL structure. + */ +- if (state->empty && (flags & NFS4_ACL_TYPE_DEFAULT)) { +- pacl = posix_acl_alloc(0, GFP_KERNEL); +- return pacl ? pacl : ERR_PTR(-ENOMEM); +- } ++ if (state->empty && (flags & NFS4_ACL_TYPE_DEFAULT)) ++ return NULL; ++ + /* + * When there are no effective ACEs, the following will end + * up setting a 3-element effective posix ACL with all +diff --git a/fs/nfsd/nfs4state.c b/fs/nfsd/nfs4state.c +index 4cef99f..b2e0a55 100644 +--- a/fs/nfsd/nfs4state.c ++++ b/fs/nfsd/nfs4state.c +@@ -986,6 +986,18 @@ static struct nfs4_client *alloc_client(struct xdr_netobj name) + } + memcpy(clp->cl_name.data, name.data, name.len); + clp->cl_name.len = name.len; ++ INIT_LIST_HEAD(&clp->cl_sessions); ++ idr_init(&clp->cl_stateids); ++ atomic_set(&clp->cl_refcount, 0); ++ clp->cl_cb_state = NFSD4_CB_UNKNOWN; ++ INIT_LIST_HEAD(&clp->cl_idhash); ++ INIT_LIST_HEAD(&clp->cl_strhash); ++ INIT_LIST_HEAD(&clp->cl_openowners); ++ INIT_LIST_HEAD(&clp->cl_delegations); ++ INIT_LIST_HEAD(&clp->cl_lru); ++ INIT_LIST_HEAD(&clp->cl_callbacks); ++ spin_lock_init(&clp->cl_lock); ++ rpc_init_wait_queue(&clp->cl_cb_waitq, "Backchannel slot table"); + return clp; + } + +@@ -999,6 +1011,7 @@ free_client(struct nfs4_client *clp) + list_del(&ses->se_perclnt); + nfsd4_put_session(ses); + } ++ rpc_destroy_wait_queue(&clp->cl_cb_waitq); + if (clp->cl_cred.cr_group_info) + put_group_info(clp->cl_cred.cr_group_info); + kfree(clp->cl_principal); +@@ -1163,7 +1176,6 @@ static struct nfs4_client *create_client(struct xdr_netobj name, char *recdir, + if (clp == NULL) + return NULL; + +- INIT_LIST_HEAD(&clp->cl_sessions); + + princ = svc_gss_principal(rqstp); + if (princ) { +@@ -1174,21 +1186,10 @@ static struct nfs4_client *create_client(struct xdr_netobj name, char *recdir, + } + } + +- idr_init(&clp->cl_stateids); + memcpy(clp->cl_recdir, recdir, HEXDIR_LEN); +- atomic_set(&clp->cl_refcount, 0); +- clp->cl_cb_state = NFSD4_CB_UNKNOWN; +- INIT_LIST_HEAD(&clp->cl_idhash); +- INIT_LIST_HEAD(&clp->cl_strhash); +- INIT_LIST_HEAD(&clp->cl_openowners); +- INIT_LIST_HEAD(&clp->cl_delegations); +- INIT_LIST_HEAD(&clp->cl_lru); +- INIT_LIST_HEAD(&clp->cl_callbacks); +- spin_lock_init(&clp->cl_lock); + INIT_WORK(&clp->cl_cb_null.cb_work, nfsd4_do_callback_rpc); + clp->cl_time = get_seconds(); + clear_bit(0, &clp->cl_cb_slot_busy); +- rpc_init_wait_queue(&clp->cl_cb_waitq, "Backchannel slot table"); + copy_verf(clp, verf); + rpc_copy_addr((struct sockaddr *) &clp->cl_addr, sa); + clp->cl_flavor = rqstp->rq_flavor; +@@ -3375,9 +3376,16 @@ out: + static __be32 + nfsd4_free_lock_stateid(struct nfs4_ol_stateid *stp) + { +- if (check_for_locks(stp->st_file, lockowner(stp->st_stateowner))) ++ struct nfs4_lockowner *lo = lockowner(stp->st_stateowner); ++ ++ if (check_for_locks(stp->st_file, lo)) + return nfserr_locks_held; +- release_lock_stateid(stp); ++ /* ++ * Currently there's a 1-1 lock stateid<->lockowner ++ * correspondance, and we have to delete the lockowner when we ++ * delete the lock stateid: ++ */ ++ unhash_lockowner(lo); + return nfs_ok; + } + +@@ -3812,6 +3820,10 @@ static bool same_lockowner_ino(struct nfs4_lockowner *lo, struct inode *inode, c + + if (!same_owner_str(&lo->lo_owner, owner, clid)) + return false; ++ if (list_empty(&lo->lo_owner.so_stateids)) { ++ WARN_ON_ONCE(1); ++ return false; ++ } + lst = list_first_entry(&lo->lo_owner.so_stateids, + struct nfs4_ol_stateid, st_perstateowner); + return lst->st_file->fi_inode == inode; +diff --git a/fs/posix_acl.c b/fs/posix_acl.c +index cea4623..6c70ab2 100644 +--- a/fs/posix_acl.c ++++ b/fs/posix_acl.c +@@ -155,6 +155,12 @@ posix_acl_equiv_mode(const struct posix_acl *acl, umode_t *mode_p) + umode_t mode = 0; + int not_equiv = 0; + ++ /* ++ * A null ACL can always be presented as mode bits. ++ */ ++ if (!acl) ++ return 0; ++ + FOREACH_ACL_ENTRY(pa, acl, pe) { + switch (pa->e_tag) { + case ACL_USER_OBJ: +diff --git a/include/linux/ftrace.h b/include/linux/ftrace.h +index 26eafce..a3ebb09 100644 +--- a/include/linux/ftrace.h ++++ b/include/linux/ftrace.h +@@ -260,6 +260,7 @@ extern int ftrace_make_call(struct dyn_ftrace *rec, unsigned long addr); + extern int ftrace_arch_read_dyn_info(char *buf, int size); + + extern int skip_trace(unsigned long ip); ++extern void ftrace_module_init(struct module *mod); + + extern void ftrace_disable_daemon(void); + extern void ftrace_enable_daemon(void); +@@ -272,6 +273,7 @@ static inline void ftrace_set_filter(unsigned char *buf, int len, int reset) + static inline void ftrace_disable_daemon(void) { } + static inline void ftrace_enable_daemon(void) { } + static inline void ftrace_release_mod(struct module *mod) {} ++static inline void ftrace_module_init(struct module *mod) {} + static inline int register_ftrace_command(struct ftrace_func_command *cmd) + { + return -EINVAL; +diff --git a/include/linux/kvm_host.h b/include/linux/kvm_host.h +index e6796c1..f93d8c1 100644 +--- a/include/linux/kvm_host.h ++++ b/include/linux/kvm_host.h +@@ -95,7 +95,6 @@ struct kvm_async_pf { + unsigned long addr; + struct kvm_arch_async_pf arch; + struct page *page; +- bool done; + }; + + void kvm_clear_async_pf_completion_queue(struct kvm_vcpu *vcpu); +diff --git a/include/linux/skbuff.h b/include/linux/skbuff.h +index 13bd6d0..c445e52 100644 +--- a/include/linux/skbuff.h ++++ b/include/linux/skbuff.h +@@ -617,11 +617,21 @@ static inline unsigned char *skb_end_pointer(const struct sk_buff *skb) + { + return skb->head + skb->end; + } ++ ++static inline unsigned int skb_end_offset(const struct sk_buff *skb) ++{ ++ return skb->end; ++} + #else + static inline unsigned char *skb_end_pointer(const struct sk_buff *skb) + { + return skb->end; + } ++ ++static inline unsigned int skb_end_offset(const struct sk_buff *skb) ++{ ++ return skb->end - skb->head; ++} + #endif + + /* Internal */ +@@ -2549,7 +2559,7 @@ static inline bool skb_is_recycleable(const struct sk_buff *skb, int skb_size) + return false; + + skb_size = SKB_DATA_ALIGN(skb_size + NET_SKB_PAD); +- if (skb_end_pointer(skb) - skb->head < skb_size) ++ if (skb_end_offset(skb) < skb_size) + return false; + + if (skb_shared(skb) || skb_cloned(skb)) +diff --git a/include/net/ip6_route.h b/include/net/ip6_route.h +index 5e91b72..4913dac 100644 +--- a/include/net/ip6_route.h ++++ b/include/net/ip6_route.h +@@ -34,6 +34,11 @@ struct route_info { + #define RT6_LOOKUP_F_SRCPREF_PUBLIC 0x00000010 + #define RT6_LOOKUP_F_SRCPREF_COA 0x00000020 + ++/* We do not (yet ?) support IPv6 jumbograms (RFC 2675) ++ * Unlike IPv4, hdr->seg_len doesn't include the IPv6 header ++ */ ++#define IP6_MAX_MTU (0xFFFF + sizeof(struct ipv6hdr)) ++ + /* + * rt6_srcprefs2flags() and rt6_flags2srcprefs() translate + * between IPV6_ADDR_PREFERENCES socket option values +diff --git a/include/trace/events/module.h b/include/trace/events/module.h +index 1619327..ca298c7 100644 +--- a/include/trace/events/module.h ++++ b/include/trace/events/module.h +@@ -78,7 +78,7 @@ DECLARE_EVENT_CLASS(module_refcnt, + + TP_fast_assign( + __entry->ip = ip; +- __entry->refcnt = __this_cpu_read(mod->refptr->incs) + __this_cpu_read(mod->refptr->decs); ++ __entry->refcnt = __this_cpu_read(mod->refptr->incs) - __this_cpu_read(mod->refptr->decs); + __assign_str(name, mod->name); + ), + +diff --git a/kernel/events/core.c b/kernel/events/core.c +index b15b4f7..1d1edcb 100644 +--- a/kernel/events/core.c ++++ b/kernel/events/core.c +@@ -4899,6 +4899,9 @@ struct swevent_htable { + + /* Recursion avoidance in each contexts */ + int recursion[PERF_NR_CONTEXTS]; ++ ++ /* Keeps track of cpu being initialized/exited */ ++ bool online; + }; + + static DEFINE_PER_CPU(struct swevent_htable, swevent_htable); +@@ -5141,8 +5144,14 @@ static int perf_swevent_add(struct perf_event *event, int flags) + hwc->state = !(flags & PERF_EF_START); + + head = find_swevent_head(swhash, event); +- if (WARN_ON_ONCE(!head)) ++ if (!head) { ++ /* ++ * We can race with cpu hotplug code. Do not ++ * WARN if the cpu just got unplugged. ++ */ ++ WARN_ON_ONCE(swhash->online); + return -EINVAL; ++ } + + hlist_add_head_rcu(&event->hlist_entry, head); + +@@ -6301,6 +6310,9 @@ SYSCALL_DEFINE5(perf_event_open, + if (attr.freq) { + if (attr.sample_freq > sysctl_perf_event_sample_rate) + return -EINVAL; ++ } else { ++ if (attr.sample_period & (1ULL << 63)) ++ return -EINVAL; + } + + /* +@@ -7078,6 +7090,7 @@ static void __cpuinit perf_event_init_cpu(int cpu) + struct swevent_htable *swhash = &per_cpu(swevent_htable, cpu); + + mutex_lock(&swhash->hlist_mutex); ++ swhash->online = true; + if (swhash->hlist_refcount > 0) { + struct swevent_hlist *hlist; + +@@ -7135,6 +7148,7 @@ static void perf_event_exit_cpu(int cpu) + perf_event_exit_cpu_context(cpu); + + mutex_lock(&swhash->hlist_mutex); ++ swhash->online = false; + swevent_hlist_release(swhash); + mutex_unlock(&swhash->hlist_mutex); + } +diff --git a/kernel/futex.c b/kernel/futex.c +index 8888815..1bb37d0 100644 +--- a/kernel/futex.c ++++ b/kernel/futex.c +@@ -588,6 +588,55 @@ void exit_pi_state_list(struct task_struct *curr) + raw_spin_unlock_irq(&curr->pi_lock); + } + ++/* ++ * We need to check the following states: ++ * ++ * Waiter | pi_state | pi->owner | uTID | uODIED | ? ++ * ++ * [1] NULL | --- | --- | 0 | 0/1 | Valid ++ * [2] NULL | --- | --- | >0 | 0/1 | Valid ++ * ++ * [3] Found | NULL | -- | Any | 0/1 | Invalid ++ * ++ * [4] Found | Found | NULL | 0 | 1 | Valid ++ * [5] Found | Found | NULL | >0 | 1 | Invalid ++ * ++ * [6] Found | Found | task | 0 | 1 | Valid ++ * ++ * [7] Found | Found | NULL | Any | 0 | Invalid ++ * ++ * [8] Found | Found | task | ==taskTID | 0/1 | Valid ++ * [9] Found | Found | task | 0 | 0 | Invalid ++ * [10] Found | Found | task | !=taskTID | 0/1 | Invalid ++ * ++ * [1] Indicates that the kernel can acquire the futex atomically. We ++ * came came here due to a stale FUTEX_WAITERS/FUTEX_OWNER_DIED bit. ++ * ++ * [2] Valid, if TID does not belong to a kernel thread. If no matching ++ * thread is found then it indicates that the owner TID has died. ++ * ++ * [3] Invalid. The waiter is queued on a non PI futex ++ * ++ * [4] Valid state after exit_robust_list(), which sets the user space ++ * value to FUTEX_WAITERS | FUTEX_OWNER_DIED. ++ * ++ * [5] The user space value got manipulated between exit_robust_list() ++ * and exit_pi_state_list() ++ * ++ * [6] Valid state after exit_pi_state_list() which sets the new owner in ++ * the pi_state but cannot access the user space value. ++ * ++ * [7] pi_state->owner can only be NULL when the OWNER_DIED bit is set. ++ * ++ * [8] Owner and user space value match ++ * ++ * [9] There is no transient state which sets the user space TID to 0 ++ * except exit_robust_list(), but this is indicated by the ++ * FUTEX_OWNER_DIED bit. See [4] ++ * ++ * [10] There is no transient state which leaves owner and user space ++ * TID out of sync. ++ */ + static int + lookup_pi_state(u32 uval, struct futex_hash_bucket *hb, + union futex_key *key, struct futex_pi_state **ps) +@@ -603,12 +652,13 @@ lookup_pi_state(u32 uval, struct futex_hash_bucket *hb, + plist_for_each_entry_safe(this, next, head, list) { + if (match_futex(&this->key, key)) { + /* +- * Another waiter already exists - bump up +- * the refcount and return its pi_state: ++ * Sanity check the waiter before increasing ++ * the refcount and attaching to it. + */ + pi_state = this->pi_state; + /* +- * Userspace might have messed up non-PI and PI futexes ++ * Userspace might have messed up non-PI and ++ * PI futexes [3] + */ + if (unlikely(!pi_state)) + return -EINVAL; +@@ -616,34 +666,70 @@ lookup_pi_state(u32 uval, struct futex_hash_bucket *hb, + WARN_ON(!atomic_read(&pi_state->refcount)); + + /* +- * When pi_state->owner is NULL then the owner died +- * and another waiter is on the fly. pi_state->owner +- * is fixed up by the task which acquires +- * pi_state->rt_mutex. +- * +- * We do not check for pid == 0 which can happen when +- * the owner died and robust_list_exit() cleared the +- * TID. ++ * Handle the owner died case: + */ +- if (pid && pi_state->owner) { ++ if (uval & FUTEX_OWNER_DIED) { ++ /* ++ * exit_pi_state_list sets owner to NULL and ++ * wakes the topmost waiter. The task which ++ * acquires the pi_state->rt_mutex will fixup ++ * owner. ++ */ ++ if (!pi_state->owner) { ++ /* ++ * No pi state owner, but the user ++ * space TID is not 0. Inconsistent ++ * state. [5] ++ */ ++ if (pid) ++ return -EINVAL; ++ /* ++ * Take a ref on the state and ++ * return. [4] ++ */ ++ goto out_state; ++ } ++ + /* +- * Bail out if user space manipulated the +- * futex value. ++ * If TID is 0, then either the dying owner ++ * has not yet executed exit_pi_state_list() ++ * or some waiter acquired the rtmutex in the ++ * pi state, but did not yet fixup the TID in ++ * user space. ++ * ++ * Take a ref on the state and return. [6] + */ +- if (pid != task_pid_vnr(pi_state->owner)) ++ if (!pid) ++ goto out_state; ++ } else { ++ /* ++ * If the owner died bit is not set, ++ * then the pi_state must have an ++ * owner. [7] ++ */ ++ if (!pi_state->owner) + return -EINVAL; + } + ++ /* ++ * Bail out if user space manipulated the ++ * futex value. If pi state exists then the ++ * owner TID must be the same as the user ++ * space TID. [9/10] ++ */ ++ if (pid != task_pid_vnr(pi_state->owner)) ++ return -EINVAL; ++ ++ out_state: + atomic_inc(&pi_state->refcount); + *ps = pi_state; +- + return 0; + } + } + + /* + * We are the first waiter - try to look up the real owner and attach +- * the new pi_state to it, but bail out when TID = 0 ++ * the new pi_state to it, but bail out when TID = 0 [1] + */ + if (!pid) + return -ESRCH; +@@ -651,6 +737,11 @@ lookup_pi_state(u32 uval, struct futex_hash_bucket *hb, + if (!p) + return -ESRCH; + ++ if (!p->mm) { ++ put_task_struct(p); ++ return -EPERM; ++ } ++ + /* + * We need to look at the task state flags to figure out, + * whether the task is exiting. To protect against the do_exit +@@ -671,6 +762,9 @@ lookup_pi_state(u32 uval, struct futex_hash_bucket *hb, + return ret; + } + ++ /* ++ * No existing pi state. First waiter. [2] ++ */ + pi_state = alloc_pi_state(); + + /* +@@ -742,10 +836,18 @@ retry: + return -EDEADLK; + + /* +- * Surprise - we got the lock. Just return to userspace: ++ * Surprise - we got the lock, but we do not trust user space at all. + */ +- if (unlikely(!curval)) +- return 1; ++ if (unlikely(!curval)) { ++ /* ++ * We verify whether there is kernel state for this ++ * futex. If not, we can safely assume, that the 0 -> ++ * TID transition is correct. If state exists, we do ++ * not bother to fixup the user space state as it was ++ * corrupted already. ++ */ ++ return futex_top_waiter(hb, key) ? -EINVAL : 1; ++ } + + uval = curval; + +@@ -875,6 +977,7 @@ static int wake_futex_pi(u32 __user *uaddr, u32 uval, struct futex_q *this) + struct task_struct *new_owner; + struct futex_pi_state *pi_state = this->pi_state; + u32 uninitialized_var(curval), newval; ++ int ret = 0; + + if (!pi_state) + return -EINVAL; +@@ -898,23 +1001,19 @@ static int wake_futex_pi(u32 __user *uaddr, u32 uval, struct futex_q *this) + new_owner = this->task; + + /* +- * We pass it to the next owner. (The WAITERS bit is always +- * kept enabled while there is PI state around. We must also +- * preserve the owner died bit.) ++ * We pass it to the next owner. The WAITERS bit is always ++ * kept enabled while there is PI state around. We cleanup the ++ * owner died bit, because we are the owner. + */ +- if (!(uval & FUTEX_OWNER_DIED)) { +- int ret = 0; ++ newval = FUTEX_WAITERS | task_pid_vnr(new_owner); + +- newval = FUTEX_WAITERS | task_pid_vnr(new_owner); +- +- if (cmpxchg_futex_value_locked(&curval, uaddr, uval, newval)) +- ret = -EFAULT; +- else if (curval != uval) +- ret = -EINVAL; +- if (ret) { +- raw_spin_unlock(&pi_state->pi_mutex.wait_lock); +- return ret; +- } ++ if (cmpxchg_futex_value_locked(&curval, uaddr, uval, newval)) ++ ret = -EFAULT; ++ else if (curval != uval) ++ ret = -EINVAL; ++ if (ret) { ++ raw_spin_unlock(&pi_state->pi_mutex.wait_lock); ++ return ret; + } + + raw_spin_lock_irq(&pi_state->owner->pi_lock); +@@ -1193,7 +1292,7 @@ void requeue_pi_wake_futex(struct futex_q *q, union futex_key *key, + * + * Returns: + * 0 - failed to acquire the lock atomicly +- * 1 - acquired the lock ++ * >0 - acquired the lock, return value is vpid of the top_waiter + * <0 - error + */ + static int futex_proxy_trylock_atomic(u32 __user *pifutex, +@@ -1204,7 +1303,7 @@ static int futex_proxy_trylock_atomic(u32 __user *pifutex, + { + struct futex_q *top_waiter = NULL; + u32 curval; +- int ret; ++ int ret, vpid; + + if (get_futex_value_locked(&curval, pifutex)) + return -EFAULT; +@@ -1232,11 +1331,13 @@ static int futex_proxy_trylock_atomic(u32 __user *pifutex, + * the contended case or if set_waiters is 1. The pi_state is returned + * in ps in contended cases. + */ ++ vpid = task_pid_vnr(top_waiter->task); + ret = futex_lock_pi_atomic(pifutex, hb2, key2, ps, top_waiter->task, + set_waiters); +- if (ret == 1) ++ if (ret == 1) { + requeue_pi_wake_futex(top_waiter, key2, hb2); +- ++ return vpid; ++ } + return ret; + } + +@@ -1268,10 +1369,16 @@ static int futex_requeue(u32 __user *uaddr1, unsigned int flags, + struct futex_hash_bucket *hb1, *hb2; + struct plist_head *head1; + struct futex_q *this, *next; +- u32 curval2; + + if (requeue_pi) { + /* ++ * Requeue PI only works on two distinct uaddrs. This ++ * check is only valid for private futexes. See below. ++ */ ++ if (uaddr1 == uaddr2) ++ return -EINVAL; ++ ++ /* + * requeue_pi requires a pi_state, try to allocate it now + * without any locks in case it fails. + */ +@@ -1309,6 +1416,15 @@ retry: + if (unlikely(ret != 0)) + goto out_put_key1; + ++ /* ++ * The check above which compares uaddrs is not sufficient for ++ * shared futexes. We need to compare the keys: ++ */ ++ if (requeue_pi && match_futex(&key1, &key2)) { ++ ret = -EINVAL; ++ goto out_put_keys; ++ } ++ + hb1 = hash_futex(&key1); + hb2 = hash_futex(&key2); + +@@ -1354,16 +1470,25 @@ retry_private: + * At this point the top_waiter has either taken uaddr2 or is + * waiting on it. If the former, then the pi_state will not + * exist yet, look it up one more time to ensure we have a +- * reference to it. ++ * reference to it. If the lock was taken, ret contains the ++ * vpid of the top waiter task. + */ +- if (ret == 1) { ++ if (ret > 0) { + WARN_ON(pi_state); + drop_count++; + task_count++; +- ret = get_futex_value_locked(&curval2, uaddr2); +- if (!ret) +- ret = lookup_pi_state(curval2, hb2, &key2, +- &pi_state); ++ /* ++ * If we acquired the lock, then the user ++ * space value of uaddr2 should be vpid. It ++ * cannot be changed by the top waiter as it ++ * is blocked on hb2 lock if it tries to do ++ * so. If something fiddled with it behind our ++ * back the pi state lookup might unearth ++ * it. So we rather use the known value than ++ * rereading and handing potential crap to ++ * lookup_pi_state. ++ */ ++ ret = lookup_pi_state(ret, hb2, &key2, &pi_state); + } + + switch (ret) { +@@ -2133,9 +2258,10 @@ retry: + /* + * To avoid races, try to do the TID -> 0 atomic transition + * again. If it succeeds then we can return without waking +- * anyone else up: ++ * anyone else up. We only try this if neither the waiters nor ++ * the owner died bit are set. + */ +- if (!(uval & FUTEX_OWNER_DIED) && ++ if (!(uval & ~FUTEX_TID_MASK) && + cmpxchg_futex_value_locked(&uval, uaddr, vpid, 0)) + goto pi_faulted; + /* +@@ -2167,11 +2293,9 @@ retry: + /* + * No waiters - kernel unlocks the futex: + */ +- if (!(uval & FUTEX_OWNER_DIED)) { +- ret = unlock_futex_pi(uaddr, uval); +- if (ret == -EFAULT) +- goto pi_faulted; +- } ++ ret = unlock_futex_pi(uaddr, uval); ++ if (ret == -EFAULT) ++ goto pi_faulted; + + out_unlock: + spin_unlock(&hb->lock); +@@ -2331,6 +2455,15 @@ static int futex_wait_requeue_pi(u32 __user *uaddr, unsigned int flags, + if (ret) + goto out_key2; + ++ /* ++ * The check above which compares uaddrs is not sufficient for ++ * shared futexes. We need to compare the keys: ++ */ ++ if (match_futex(&q.key, &key2)) { ++ ret = -EINVAL; ++ goto out_put_keys; ++ } ++ + /* Queue the futex_q, drop the hb lock, wait for wakeup. */ + futex_wait_queue_me(hb, &q, to); + +diff --git a/kernel/hrtimer.c b/kernel/hrtimer.c +index 60f7e32..20e88af 100644 +--- a/kernel/hrtimer.c ++++ b/kernel/hrtimer.c +@@ -232,6 +232,11 @@ again: + goto again; + } + timer->base = new_base; ++ } else { ++ if (cpu != this_cpu && hrtimer_check_target(timer, new_base)) { ++ cpu = this_cpu; ++ goto again; ++ } + } + return new_base; + } +@@ -567,6 +572,23 @@ hrtimer_force_reprogram(struct hrtimer_cpu_base *cpu_base, int skip_equal) + + cpu_base->expires_next.tv64 = expires_next.tv64; + ++ /* ++ * If a hang was detected in the last timer interrupt then we ++ * leave the hang delay active in the hardware. We want the ++ * system to make progress. That also prevents the following ++ * scenario: ++ * T1 expires 50ms from now ++ * T2 expires 5s from now ++ * ++ * T1 is removed, so this code is called and would reprogram ++ * the hardware to 5s from now. Any hrtimer_start after that ++ * will not reprogram the hardware due to hang_detected being ++ * set. So we'd effectivly block all timers until the T2 event ++ * fires. ++ */ ++ if (cpu_base->hang_detected) ++ return; ++ + if (cpu_base->expires_next.tv64 != KTIME_MAX) + tick_program_event(cpu_base->expires_next, 1); + } +@@ -958,11 +980,8 @@ int __hrtimer_start_range_ns(struct hrtimer *timer, ktime_t tim, + /* Remove an active timer from the queue: */ + ret = remove_hrtimer(timer, base); + +- /* Switch the timer base, if necessary: */ +- new_base = switch_hrtimer_base(timer, base, mode & HRTIMER_MODE_PINNED); +- + if (mode & HRTIMER_MODE_REL) { +- tim = ktime_add_safe(tim, new_base->get_time()); ++ tim = ktime_add_safe(tim, base->get_time()); + /* + * CONFIG_TIME_LOW_RES is a temporary way for architectures + * to signal that they simply return xtime in +@@ -977,6 +996,9 @@ int __hrtimer_start_range_ns(struct hrtimer *timer, ktime_t tim, + + hrtimer_set_expires_range_ns(timer, tim, delta_ns); + ++ /* Switch the timer base, if necessary: */ ++ new_base = switch_hrtimer_base(timer, base, mode & HRTIMER_MODE_PINNED); ++ + timer_stats_hrtimer_set_start_info(timer); + + leftmost = enqueue_hrtimer(timer, new_base); +diff --git a/kernel/module.c b/kernel/module.c +index 65362d9..95ecd9f 100644 +--- a/kernel/module.c ++++ b/kernel/module.c +@@ -2888,6 +2888,9 @@ static struct module *load_module(void __user *umod, + /* This has to be done once we're sure module name is unique. */ + dynamic_debug_setup(info.debug, info.num_debug); + ++ /* Ftrace init must be called in the MODULE_STATE_UNFORMED state */ ++ ftrace_module_init(mod); ++ + /* Find duplicate symbols */ + err = verify_export_symbols(mod); + if (err < 0) +diff --git a/kernel/sched_cpupri.c b/kernel/sched_cpupri.c +index a86cf9d..1f4afdd 100644 +--- a/kernel/sched_cpupri.c ++++ b/kernel/sched_cpupri.c +@@ -68,8 +68,7 @@ int cpupri_find(struct cpupri *cp, struct task_struct *p, + int idx = 0; + int task_pri = convert_prio(p->prio); + +- if (task_pri >= MAX_RT_PRIO) +- return 0; ++ BUG_ON(task_pri >= CPUPRI_NR_PRIORITIES); + + for (idx = 0; idx < task_pri; idx++) { + struct cpupri_vec *vec = &cp->pri_to_cpu[idx]; +diff --git a/kernel/timer.c b/kernel/timer.c +index f8b05a4..349953e 100644 +--- a/kernel/timer.c ++++ b/kernel/timer.c +@@ -769,7 +769,7 @@ unsigned long apply_slack(struct timer_list *timer, unsigned long expires) + + bit = find_last_bit(&mask, BITS_PER_LONG); + +- mask = (1 << bit) - 1; ++ mask = (1UL << bit) - 1; + + expires_limit = expires_limit & ~(mask); + +diff --git a/kernel/trace/ftrace.c b/kernel/trace/ftrace.c +index a65fa36..dcbafed 100644 +--- a/kernel/trace/ftrace.c ++++ b/kernel/trace/ftrace.c +@@ -3542,16 +3542,11 @@ static void ftrace_init_module(struct module *mod, + ftrace_process_locs(mod, start, end); + } + +-static int ftrace_module_notify_enter(struct notifier_block *self, +- unsigned long val, void *data) ++void ftrace_module_init(struct module *mod) + { +- struct module *mod = data; +- +- if (val == MODULE_STATE_COMING) +- ftrace_init_module(mod, mod->ftrace_callsites, +- mod->ftrace_callsites + +- mod->num_ftrace_callsites); +- return 0; ++ ftrace_init_module(mod, mod->ftrace_callsites, ++ mod->ftrace_callsites + ++ mod->num_ftrace_callsites); + } + + static int ftrace_module_notify_exit(struct notifier_block *self, +@@ -3565,11 +3560,6 @@ static int ftrace_module_notify_exit(struct notifier_block *self, + return 0; + } + #else +-static int ftrace_module_notify_enter(struct notifier_block *self, +- unsigned long val, void *data) +-{ +- return 0; +-} + static int ftrace_module_notify_exit(struct notifier_block *self, + unsigned long val, void *data) + { +@@ -3577,11 +3567,6 @@ static int ftrace_module_notify_exit(struct notifier_block *self, + } + #endif /* CONFIG_MODULES */ + +-struct notifier_block ftrace_module_enter_nb = { +- .notifier_call = ftrace_module_notify_enter, +- .priority = INT_MAX, /* Run before anything that can use kprobes */ +-}; +- + struct notifier_block ftrace_module_exit_nb = { + .notifier_call = ftrace_module_notify_exit, + .priority = INT_MIN, /* Run after anything that can remove kprobes */ +@@ -3618,10 +3603,6 @@ void __init ftrace_init(void) + __start_mcount_loc, + __stop_mcount_loc); + +- ret = register_module_notifier(&ftrace_module_enter_nb); +- if (ret) +- pr_warning("Failed to register trace ftrace module enter notifier\n"); +- + ret = register_module_notifier(&ftrace_module_exit_nb); + if (ret) + pr_warning("Failed to register trace ftrace module exit notifier\n"); +diff --git a/kernel/tracepoint.c b/kernel/tracepoint.c +index 41b25a0..088fbc5 100644 +--- a/kernel/tracepoint.c ++++ b/kernel/tracepoint.c +@@ -638,6 +638,9 @@ static int tracepoint_module_coming(struct module *mod) + struct tp_module *tp_mod, *iter; + int ret = 0; + ++ if (!mod->num_tracepoints) ++ return 0; ++ + /* + * We skip modules that taint the kernel, especially those with different + * module headers (for forced load), to make sure we don't cause a crash. +@@ -681,6 +684,9 @@ static int tracepoint_module_going(struct module *mod) + { + struct tp_module *pos; + ++ if (!mod->num_tracepoints) ++ return 0; ++ + mutex_lock(&tracepoints_mutex); + tracepoint_update_probe_range(mod->tracepoints_ptrs, + mod->tracepoints_ptrs + mod->num_tracepoints); +diff --git a/mm/memory-failure.c b/mm/memory-failure.c +index 96c4bcf..51901b1 100644 +--- a/mm/memory-failure.c ++++ b/mm/memory-failure.c +@@ -1033,15 +1033,16 @@ int __memory_failure(unsigned long pfn, int trapno, int flags) + return 0; + } else if (PageHuge(hpage)) { + /* +- * Check "just unpoisoned", "filter hit", and +- * "race with other subpage." ++ * Check "filter hit" and "race with other subpage." + */ + lock_page(hpage); +- if (!PageHWPoison(hpage) +- || (hwpoison_filter(p) && TestClearPageHWPoison(p)) +- || (p != hpage && TestSetPageHWPoison(hpage))) { +- atomic_long_sub(nr_pages, &mce_bad_pages); +- return 0; ++ if (PageHWPoison(hpage)) { ++ if ((hwpoison_filter(p) && TestClearPageHWPoison(p)) ++ || (p != hpage && TestSetPageHWPoison(hpage))) { ++ atomic_long_sub(nr_pages, &mce_bad_pages); ++ unlock_page(hpage); ++ return 0; ++ } + } + set_page_hwpoison_huge_page(hpage); + res = dequeue_hwpoisoned_huge_page(hpage); +@@ -1093,6 +1094,8 @@ int __memory_failure(unsigned long pfn, int trapno, int flags) + */ + if (!PageHWPoison(p)) { + printk(KERN_ERR "MCE %#lx: just unpoisoned\n", pfn); ++ atomic_long_sub(nr_pages, &mce_bad_pages); ++ put_page(hpage); + res = 0; + goto out; + } +diff --git a/mm/page-writeback.c b/mm/page-writeback.c +index b5cd796..d2ac057 100644 +--- a/mm/page-writeback.c ++++ b/mm/page-writeback.c +@@ -559,7 +559,7 @@ static unsigned long bdi_position_ratio(struct backing_dev_info *bdi, + * => fast response on large errors; small oscillation near setpoint + */ + setpoint = (freerun + limit) / 2; +- x = div_s64((setpoint - dirty) << RATELIMIT_CALC_SHIFT, ++ x = div64_s64(((s64)setpoint - (s64)dirty) << RATELIMIT_CALC_SHIFT, + limit - setpoint + 1); + pos_ratio = x; + pos_ratio = pos_ratio * x >> RATELIMIT_CALC_SHIFT; +@@ -625,7 +625,7 @@ static unsigned long bdi_position_ratio(struct backing_dev_info *bdi, + x_intercept = bdi_setpoint + span; + + if (bdi_dirty < x_intercept - span / 4) { +- pos_ratio = div_u64(pos_ratio * (x_intercept - bdi_dirty), ++ pos_ratio = div64_u64(pos_ratio * (x_intercept - bdi_dirty), + x_intercept - bdi_setpoint + 1); + } else + pos_ratio /= 4; +diff --git a/net/bluetooth/hci_conn.c b/net/bluetooth/hci_conn.c +index aa12649..4d99d42 100644 +--- a/net/bluetooth/hci_conn.c ++++ b/net/bluetooth/hci_conn.c +@@ -610,14 +610,17 @@ static int hci_conn_auth(struct hci_conn *conn, __u8 sec_level, __u8 auth_type) + if (!test_and_set_bit(HCI_CONN_AUTH_PEND, &conn->pend)) { + struct hci_cp_auth_requested cp; + +- /* encrypt must be pending if auth is also pending */ +- set_bit(HCI_CONN_ENCRYPT_PEND, &conn->pend); +- + cp.handle = cpu_to_le16(conn->handle); + hci_send_cmd(conn->hdev, HCI_OP_AUTH_REQUESTED, + sizeof(cp), &cp); ++ ++ /* If we're already encrypted set the REAUTH_PEND flag, ++ * otherwise set the ENCRYPT_PEND. ++ */ + if (conn->key_type != 0xff) + set_bit(HCI_CONN_REAUTH_PEND, &conn->pend); ++ else ++ set_bit(HCI_CONN_ENCRYPT_PEND, &conn->pend); + } + + return 0; +diff --git a/net/bridge/br_netlink.c b/net/bridge/br_netlink.c +index cbf9ccd..99a48a3 100644 +--- a/net/bridge/br_netlink.c ++++ b/net/bridge/br_netlink.c +@@ -211,11 +211,26 @@ static int br_validate(struct nlattr *tb[], struct nlattr *data[]) + return 0; + } + ++static int br_dev_newlink(struct net *src_net, struct net_device *dev, ++ struct nlattr *tb[], struct nlattr *data[]) ++{ ++ struct net_bridge *br = netdev_priv(dev); ++ ++ if (tb[IFLA_ADDRESS]) { ++ spin_lock_bh(&br->lock); ++ br_stp_change_bridge_id(br, nla_data(tb[IFLA_ADDRESS])); ++ spin_unlock_bh(&br->lock); ++ } ++ ++ return register_netdevice(dev); ++} ++ + struct rtnl_link_ops br_link_ops __read_mostly = { + .kind = "bridge", + .priv_size = sizeof(struct net_bridge), + .setup = br_dev_setup, + .validate = br_validate, ++ .newlink = br_dev_newlink, + .dellink = br_dev_delete, + }; + +diff --git a/net/bridge/netfilter/ebtables.c b/net/bridge/netfilter/ebtables.c +index 5864cc4..45f93f8 100644 +--- a/net/bridge/netfilter/ebtables.c ++++ b/net/bridge/netfilter/ebtables.c +@@ -1044,10 +1044,9 @@ static int do_replace_finish(struct net *net, struct ebt_replace *repl, + if (repl->num_counters && + copy_to_user(repl->counters, counterstmp, + repl->num_counters * sizeof(struct ebt_counter))) { +- ret = -EFAULT; ++ /* Silent error, can't fail, new table is already in place */ ++ net_warn_ratelimited("ebtables: counters copy to user failed while replacing table\n"); + } +- else +- ret = 0; + + /* decrease module count and free resources */ + EBT_ENTRY_ITERATE(table->entries, table->entries_size, +diff --git a/net/ceph/messenger.c b/net/ceph/messenger.c +index ad5b708..20ba2d5 100644 +--- a/net/ceph/messenger.c ++++ b/net/ceph/messenger.c +@@ -284,6 +284,37 @@ static int ceph_tcp_sendmsg(struct socket *sock, struct kvec *iov, + return r; + } + ++static int __ceph_tcp_sendpage(struct socket *sock, struct page *page, ++ int offset, size_t size, bool more) ++{ ++ int flags = MSG_DONTWAIT | MSG_NOSIGNAL | (more ? MSG_MORE : MSG_EOR); ++ int ret; ++ ++ ret = kernel_sendpage(sock, page, offset, size, flags); ++ if (ret == -EAGAIN) ++ ret = 0; ++ ++ return ret; ++} ++ ++static int ceph_tcp_sendpage(struct socket *sock, struct page *page, ++ int offset, size_t size, bool more) ++{ ++ int ret; ++ struct kvec iov; ++ ++ /* sendpage cannot properly handle pages with page_count == 0, ++ * we need to fallback to sendmsg if that's the case */ ++ if (page_count(page) >= 1) ++ return __ceph_tcp_sendpage(sock, page, offset, size, more); ++ ++ iov.iov_base = kmap(page) + offset; ++ iov.iov_len = size; ++ ret = ceph_tcp_sendmsg(sock, &iov, 1, size, more); ++ kunmap(page); ++ ++ return ret; ++} + + /* + * Shutdown/close the socket for the given connection. +@@ -851,18 +882,14 @@ static int write_partial_msg_pages(struct ceph_connection *con) + cpu_to_le32(crc32c(tmpcrc, base, len)); + con->out_msg_pos.did_page_crc = 1; + } +- ret = kernel_sendpage(con->sock, page, ++ ret = ceph_tcp_sendpage(con->sock, page, + con->out_msg_pos.page_pos + page_shift, +- len, +- MSG_DONTWAIT | MSG_NOSIGNAL | +- MSG_MORE); ++ len, 1); + + if (crc && + (msg->pages || msg->pagelist || msg->bio || in_trail)) + kunmap(page); + +- if (ret == -EAGAIN) +- ret = 0; + if (ret <= 0) + goto out; + +diff --git a/net/core/dev.c b/net/core/dev.c +index 7bcf37d..854da15 100644 +--- a/net/core/dev.c ++++ b/net/core/dev.c +@@ -3648,6 +3648,7 @@ static void napi_reuse_skb(struct napi_struct *napi, struct sk_buff *skb) + skb->vlan_tci = 0; + skb->dev = napi->dev; + skb->skb_iif = 0; ++ skb->truesize = SKB_TRUESIZE(skb_end_offset(skb)); + + napi->skb = skb; + } +diff --git a/net/core/filter.c b/net/core/filter.c +index 5dea452..9c88080 100644 +--- a/net/core/filter.c ++++ b/net/core/filter.c +@@ -320,6 +320,8 @@ load_b: + + if (skb_is_nonlinear(skb)) + return 0; ++ if (skb->len < sizeof(struct nlattr)) ++ return 0; + if (A > skb->len - sizeof(struct nlattr)) + return 0; + +@@ -336,11 +338,13 @@ load_b: + + if (skb_is_nonlinear(skb)) + return 0; ++ if (skb->len < sizeof(struct nlattr)) ++ return 0; + if (A > skb->len - sizeof(struct nlattr)) + return 0; + + nla = (struct nlattr *)&skb->data[A]; +- if (nla->nla_len > A - skb->len) ++ if (nla->nla_len > skb->len - A) + return 0; + + nla = nla_find_nested(nla, X); +diff --git a/net/core/rtnetlink.c b/net/core/rtnetlink.c +index 5b7d5f2..7beaf10 100644 +--- a/net/core/rtnetlink.c ++++ b/net/core/rtnetlink.c +@@ -744,7 +744,8 @@ static inline int rtnl_vfinfo_size(const struct net_device *dev, + return 0; + } + +-static size_t rtnl_port_size(const struct net_device *dev) ++static size_t rtnl_port_size(const struct net_device *dev, ++ u32 ext_filter_mask) + { + size_t port_size = nla_total_size(4) /* PORT_VF */ + + nla_total_size(PORT_PROFILE_MAX) /* PORT_PROFILE */ +@@ -760,7 +761,8 @@ static size_t rtnl_port_size(const struct net_device *dev) + size_t port_self_size = nla_total_size(sizeof(struct nlattr)) + + port_size; + +- if (!dev->netdev_ops->ndo_get_vf_port || !dev->dev.parent) ++ if (!dev->netdev_ops->ndo_get_vf_port || !dev->dev.parent || ++ !(ext_filter_mask & RTEXT_FILTER_VF)) + return 0; + if (dev_num_vf(dev->dev.parent)) + return port_self_size + vf_ports_size + +@@ -791,7 +793,7 @@ static noinline size_t if_nlmsg_size(const struct net_device *dev, + + nla_total_size(ext_filter_mask + & RTEXT_FILTER_VF ? 4 : 0) /* IFLA_NUM_VF */ + + rtnl_vfinfo_size(dev, ext_filter_mask) /* IFLA_VFINFO_LIST */ +- + rtnl_port_size(dev) /* IFLA_VF_PORTS + IFLA_PORT_SELF */ ++ + rtnl_port_size(dev, ext_filter_mask) /* IFLA_VF_PORTS + IFLA_PORT_SELF */ + + rtnl_link_get_size(dev) /* IFLA_LINKINFO */ + + rtnl_link_get_af_size(dev); /* IFLA_AF_SPEC */ + } +@@ -851,11 +853,13 @@ static int rtnl_port_self_fill(struct sk_buff *skb, struct net_device *dev) + return 0; + } + +-static int rtnl_port_fill(struct sk_buff *skb, struct net_device *dev) ++static int rtnl_port_fill(struct sk_buff *skb, struct net_device *dev, ++ u32 ext_filter_mask) + { + int err; + +- if (!dev->netdev_ops->ndo_get_vf_port || !dev->dev.parent) ++ if (!dev->netdev_ops->ndo_get_vf_port || !dev->dev.parent || ++ !(ext_filter_mask & RTEXT_FILTER_VF)) + return 0; + + err = rtnl_port_self_fill(skb, dev); +@@ -1002,7 +1006,7 @@ static int rtnl_fill_ifinfo(struct sk_buff *skb, struct net_device *dev, + nla_nest_end(skb, vfinfo); + } + +- if (rtnl_port_fill(skb, dev)) ++ if (rtnl_port_fill(skb, dev, ext_filter_mask)) + goto nla_put_failure; + + if (dev->rtnl_link_ops) { +@@ -1057,6 +1061,7 @@ static int rtnl_dump_ifinfo(struct sk_buff *skb, struct netlink_callback *cb) + struct hlist_node *node; + struct nlattr *tb[IFLA_MAX+1]; + u32 ext_filter_mask = 0; ++ int err; + + s_h = cb->args[0]; + s_idx = cb->args[1]; +@@ -1077,11 +1082,17 @@ static int rtnl_dump_ifinfo(struct sk_buff *skb, struct netlink_callback *cb) + hlist_for_each_entry_rcu(dev, node, head, index_hlist) { + if (idx < s_idx) + goto cont; +- if (rtnl_fill_ifinfo(skb, dev, RTM_NEWLINK, +- NETLINK_CB(cb->skb).pid, +- cb->nlh->nlmsg_seq, 0, +- NLM_F_MULTI, +- ext_filter_mask) <= 0) ++ err = rtnl_fill_ifinfo(skb, dev, RTM_NEWLINK, ++ NETLINK_CB(cb->skb).pid, ++ cb->nlh->nlmsg_seq, 0, ++ NLM_F_MULTI, ++ ext_filter_mask); ++ /* If we ran out of room on the first message, ++ * we're in trouble ++ */ ++ WARN_ON((err == -EMSGSIZE) && (skb->len == 0)); ++ ++ if (err <= 0) + goto out; + + nl_dump_check_consistent(cb, nlmsg_hdr(skb)); +diff --git a/net/core/skbuff.c b/net/core/skbuff.c +index 8ac4a0f..9204d9b 100644 +--- a/net/core/skbuff.c ++++ b/net/core/skbuff.c +@@ -743,7 +743,7 @@ static void copy_skb_header(struct sk_buff *new, const struct sk_buff *old) + struct sk_buff *skb_copy(const struct sk_buff *skb, gfp_t gfp_mask) + { + int headerlen = skb_headroom(skb); +- unsigned int size = (skb_end_pointer(skb) - skb->head) + skb->data_len; ++ unsigned int size = skb_end_offset(skb) + skb->data_len; + struct sk_buff *n = alloc_skb(size, gfp_mask); + + if (!n) +@@ -843,7 +843,7 @@ int pskb_expand_head(struct sk_buff *skb, int nhead, int ntail, + { + int i; + u8 *data; +- int size = nhead + (skb_end_pointer(skb) - skb->head) + ntail; ++ int size = nhead + skb_end_offset(skb) + ntail; + long off; + bool fastpath; + +@@ -2642,14 +2642,13 @@ struct sk_buff *skb_segment(struct sk_buff *skb, u32 features) + if (unlikely(!nskb)) + goto err; + +- hsize = skb_end_pointer(nskb) - nskb->head; ++ hsize = skb_end_offset(nskb); + if (skb_cow_head(nskb, doffset + headroom)) { + kfree_skb(nskb); + goto err; + } + +- nskb->truesize += skb_end_pointer(nskb) - nskb->head - +- hsize; ++ nskb->truesize += skb_end_offset(nskb) - hsize; + skb_release_head_state(nskb); + __skb_push(nskb, doffset); + } else { +@@ -3197,12 +3196,14 @@ EXPORT_SYMBOL(__skb_warn_lro_forwarding); + unsigned int skb_gso_transport_seglen(const struct sk_buff *skb) + { + const struct skb_shared_info *shinfo = skb_shinfo(skb); +- unsigned int hdr_len; + + if (likely(shinfo->gso_type & (SKB_GSO_TCPV4 | SKB_GSO_TCPV6))) +- hdr_len = tcp_hdrlen(skb); +- else +- hdr_len = sizeof(struct udphdr); +- return hdr_len + shinfo->gso_size; ++ return tcp_hdrlen(skb) + shinfo->gso_size; ++ ++ /* UFO sets gso_size to the size of the fragmentation ++ * payload, i.e. the size of the L4 (UDP) header is already ++ * accounted for. ++ */ ++ return shinfo->gso_size; + } + EXPORT_SYMBOL_GPL(skb_gso_transport_seglen); +diff --git a/net/ipv4/fib_semantics.c b/net/ipv4/fib_semantics.c +index d01f9c6..76da979 100644 +--- a/net/ipv4/fib_semantics.c ++++ b/net/ipv4/fib_semantics.c +@@ -752,13 +752,13 @@ struct fib_info *fib_create_info(struct fib_config *cfg) + fi = kzalloc(sizeof(*fi)+nhs*sizeof(struct fib_nh), GFP_KERNEL); + if (fi == NULL) + goto failure; ++ fib_info_cnt++; + if (cfg->fc_mx) { + fi->fib_metrics = kzalloc(sizeof(u32) * RTAX_MAX, GFP_KERNEL); + if (!fi->fib_metrics) + goto failure; + } else + fi->fib_metrics = (u32 *) dst_default_metrics; +- fib_info_cnt++; + + fi->fib_net = hold_net(net); + fi->fib_protocol = cfg->fc_protocol; +diff --git a/net/ipv4/ip_forward.c b/net/ipv4/ip_forward.c +index e0d9f02..7593f3a 100644 +--- a/net/ipv4/ip_forward.c ++++ b/net/ipv4/ip_forward.c +@@ -42,12 +42,12 @@ + static bool ip_may_fragment(const struct sk_buff *skb) + { + return unlikely((ip_hdr(skb)->frag_off & htons(IP_DF)) == 0) || +- !skb->local_df; ++ skb->local_df; + } + + static bool ip_exceeds_mtu(const struct sk_buff *skb, unsigned int mtu) + { +- if (skb->len <= mtu || skb->local_df) ++ if (skb->len <= mtu) + return false; + + if (skb_is_gso(skb) && skb_gso_network_seglen(skb) <= mtu) +diff --git a/net/ipv4/netfilter/arp_tables.c b/net/ipv4/netfilter/arp_tables.c +index fd7a3f6..bcb6e61 100644 +--- a/net/ipv4/netfilter/arp_tables.c ++++ b/net/ipv4/netfilter/arp_tables.c +@@ -1039,8 +1039,10 @@ static int __do_replace(struct net *net, const char *name, + + xt_free_table_info(oldinfo); + if (copy_to_user(counters_ptr, counters, +- sizeof(struct xt_counters) * num_counters) != 0) +- ret = -EFAULT; ++ sizeof(struct xt_counters) * num_counters) != 0) { ++ /* Silent error, can't fail, new table is already in place */ ++ net_warn_ratelimited("arptables: counters copy to user failed while replacing table\n"); ++ } + vfree(counters); + xt_table_unlock(t); + return ret; +diff --git a/net/ipv4/netfilter/ip_tables.c b/net/ipv4/netfilter/ip_tables.c +index 24e556e..f98a1cf 100644 +--- a/net/ipv4/netfilter/ip_tables.c ++++ b/net/ipv4/netfilter/ip_tables.c +@@ -1227,8 +1227,10 @@ __do_replace(struct net *net, const char *name, unsigned int valid_hooks, + + xt_free_table_info(oldinfo); + if (copy_to_user(counters_ptr, counters, +- sizeof(struct xt_counters) * num_counters) != 0) +- ret = -EFAULT; ++ sizeof(struct xt_counters) * num_counters) != 0) { ++ /* Silent error, can't fail, new table is already in place */ ++ net_warn_ratelimited("iptables: counters copy to user failed while replacing table\n"); ++ } + vfree(counters); + xt_table_unlock(t); + return ret; +diff --git a/net/ipv4/ping.c b/net/ipv4/ping.c +index 00975b6..d495d4b 100644 +--- a/net/ipv4/ping.c ++++ b/net/ipv4/ping.c +@@ -203,26 +203,33 @@ static int ping_init_sock(struct sock *sk) + struct net *net = sock_net(sk); + gid_t group = current_egid(); + gid_t range[2]; +- struct group_info *group_info = get_current_groups(); +- int i, j, count = group_info->ngroups; ++ struct group_info *group_info; ++ int i, j, count; ++ int ret = 0; + + inet_get_ping_group_range_net(net, range, range+1); + if (range[0] <= group && group <= range[1]) + return 0; + ++ group_info = get_current_groups(); ++ count = group_info->ngroups; + for (i = 0; i < group_info->nblocks; i++) { + int cp_count = min_t(int, NGROUPS_PER_BLOCK, count); + + for (j = 0; j < cp_count; j++) { + group = group_info->blocks[i][j]; + if (range[0] <= group && group <= range[1]) +- return 0; ++ goto out_release_group; + } + + count -= cp_count; + } + +- return -EACCES; ++ ret = -EACCES; ++ ++out_release_group: ++ put_group_info(group_info); ++ return ret; + } + + static void ping_close(struct sock *sk, long timeout) +diff --git a/net/ipv4/route.c b/net/ipv4/route.c +index 6768ce2..6526110 100644 +--- a/net/ipv4/route.c ++++ b/net/ipv4/route.c +@@ -2142,7 +2142,7 @@ static int __mkroute_input(struct sk_buff *skb, + struct in_device *out_dev; + unsigned int flags = 0; + __be32 spec_dst; +- u32 itag; ++ u32 itag = 0; + + /* get a working reference to the output device */ + out_dev = __in_dev_get_rcu(FIB_RES_DEV(*res)); +diff --git a/net/ipv4/tcp_cubic.c b/net/ipv4/tcp_cubic.c +index b78eac2..ed3d6d4 100644 +--- a/net/ipv4/tcp_cubic.c ++++ b/net/ipv4/tcp_cubic.c +@@ -406,7 +406,7 @@ static void bictcp_acked(struct sock *sk, u32 cnt, s32 rtt_us) + ratio -= ca->delayed_ack >> ACK_RATIO_SHIFT; + ratio += cnt; + +- ca->delayed_ack = min(ratio, ACK_RATIO_LIMIT); ++ ca->delayed_ack = clamp(ratio, 1U, ACK_RATIO_LIMIT); + } + + /* Some calls are for duplicates without timetamps */ +diff --git a/net/ipv6/netfilter/ip6_tables.c b/net/ipv6/netfilter/ip6_tables.c +index 94874b0..2e752b2 100644 +--- a/net/ipv6/netfilter/ip6_tables.c ++++ b/net/ipv6/netfilter/ip6_tables.c +@@ -1249,8 +1249,10 @@ __do_replace(struct net *net, const char *name, unsigned int valid_hooks, + + xt_free_table_info(oldinfo); + if (copy_to_user(counters_ptr, counters, +- sizeof(struct xt_counters) * num_counters) != 0) +- ret = -EFAULT; ++ sizeof(struct xt_counters) * num_counters) != 0) { ++ /* Silent error, can't fail, new table is already in place */ ++ net_warn_ratelimited("ip6tables: counters copy to user failed while replacing table\n"); ++ } + vfree(counters); + xt_table_unlock(t); + return ret; +diff --git a/net/ipv6/route.c b/net/ipv6/route.c +index 39e11f9..782f67a 100644 +--- a/net/ipv6/route.c ++++ b/net/ipv6/route.c +@@ -1056,7 +1056,7 @@ static unsigned int ip6_mtu(const struct dst_entry *dst) + unsigned int mtu = dst_metric_raw(dst, RTAX_MTU); + + if (mtu) +- return mtu; ++ goto out; + + mtu = IPV6_MIN_MTU; + +@@ -1066,7 +1066,8 @@ static unsigned int ip6_mtu(const struct dst_entry *dst) + mtu = idev->cnf.mtu6; + rcu_read_unlock(); + +- return mtu; ++out: ++ return min_t(unsigned int, mtu, IP6_MAX_MTU); + } + + static struct dst_entry *icmp6_dst_gc_list; +diff --git a/net/l2tp/l2tp_ppp.c b/net/l2tp/l2tp_ppp.c +index 969cd3e..e0f0934 100644 +--- a/net/l2tp/l2tp_ppp.c ++++ b/net/l2tp/l2tp_ppp.c +@@ -772,9 +772,9 @@ static int pppol2tp_connect(struct socket *sock, struct sockaddr *uservaddr, + session->deref = pppol2tp_session_sock_put; + + /* If PMTU discovery was enabled, use the MTU that was discovered */ +- dst = sk_dst_get(sk); ++ dst = sk_dst_get(tunnel->sock); + if (dst != NULL) { +- u32 pmtu = dst_mtu(__sk_dst_get(sk)); ++ u32 pmtu = dst_mtu(__sk_dst_get(tunnel->sock)); + if (pmtu != 0) + session->mtu = session->mru = pmtu - + PPPOL2TP_HEADER_OVERHEAD; +diff --git a/net/sched/act_mirred.c b/net/sched/act_mirred.c +index e051398..d067ed1 100644 +--- a/net/sched/act_mirred.c ++++ b/net/sched/act_mirred.c +@@ -201,13 +201,12 @@ static int tcf_mirred(struct sk_buff *skb, const struct tc_action *a, + out: + if (err) { + m->tcf_qstats.overlimits++; +- /* should we be asking for packet to be dropped? +- * may make sense for redirect case only +- */ +- retval = TC_ACT_SHOT; +- } else { ++ if (m->tcfm_eaction != TCA_EGRESS_MIRROR) ++ retval = TC_ACT_SHOT; ++ else ++ retval = m->tcf_action; ++ } else + retval = m->tcf_action; +- } + spin_unlock(&m->tcf_lock); + + return retval; +diff --git a/net/sctp/protocol.c b/net/sctp/protocol.c +index 6f6ad86..de35e01 100644 +--- a/net/sctp/protocol.c ++++ b/net/sctp/protocol.c +@@ -528,8 +528,13 @@ static void sctp_v4_get_dst(struct sctp_transport *t, union sctp_addr *saddr, + continue; + if ((laddr->state == SCTP_ADDR_SRC) && + (AF_INET == laddr->a.sa.sa_family)) { +- fl4->saddr = laddr->a.v4.sin_addr.s_addr; + fl4->fl4_sport = laddr->a.v4.sin_port; ++ flowi4_update_output(fl4, ++ asoc->base.sk->sk_bound_dev_if, ++ RT_CONN_FLAGS(asoc->base.sk), ++ daddr->v4.sin_addr.s_addr, ++ laddr->a.v4.sin_addr.s_addr); ++ + rt = ip_route_output_key(&init_net, fl4); + if (!IS_ERR(rt)) { + dst = &rt->dst; +diff --git a/scripts/mod/modpost.c b/scripts/mod/modpost.c +index 619228d..dc5748f 100644 +--- a/scripts/mod/modpost.c ++++ b/scripts/mod/modpost.c +@@ -569,12 +569,16 @@ static int ignore_undef_symbol(struct elf_info *info, const char *symname) + if (strncmp(symname, "_restgpr_", sizeof("_restgpr_") - 1) == 0 || + strncmp(symname, "_savegpr_", sizeof("_savegpr_") - 1) == 0 || + strncmp(symname, "_rest32gpr_", sizeof("_rest32gpr_") - 1) == 0 || +- strncmp(symname, "_save32gpr_", sizeof("_save32gpr_") - 1) == 0) ++ strncmp(symname, "_save32gpr_", sizeof("_save32gpr_") - 1) == 0 || ++ strncmp(symname, "_restvr_", sizeof("_restvr_") - 1) == 0 || ++ strncmp(symname, "_savevr_", sizeof("_savevr_") - 1) == 0) + return 1; + if (info->hdr->e_machine == EM_PPC64) + /* Special register function linked on all modules during final link of .ko */ + if (strncmp(symname, "_restgpr0_", sizeof("_restgpr0_") - 1) == 0 || +- strncmp(symname, "_savegpr0_", sizeof("_savegpr0_") - 1) == 0) ++ strncmp(symname, "_savegpr0_", sizeof("_savegpr0_") - 1) == 0 || ++ strncmp(symname, "_restvr_", sizeof("_restvr_") - 1) == 0 || ++ strncmp(symname, "_savevr_", sizeof("_savevr_") - 1) == 0) + return 1; + /* Do not ignore this symbol */ + return 0; +diff --git a/virt/kvm/async_pf.c b/virt/kvm/async_pf.c +index 74268b4..bdd2c0d 100644 +--- a/virt/kvm/async_pf.c ++++ b/virt/kvm/async_pf.c +@@ -75,7 +75,6 @@ static void async_pf_execute(struct work_struct *work) + spin_lock(&vcpu->async_pf.lock); + list_add_tail(&apf->link, &vcpu->async_pf.done); + apf->page = page; +- apf->done = true; + spin_unlock(&vcpu->async_pf.lock); + + /* +@@ -88,7 +87,7 @@ static void async_pf_execute(struct work_struct *work) + if (waitqueue_active(&vcpu->wq)) + wake_up_interruptible(&vcpu->wq); + +- mmdrop(mm); ++ mmput(mm); + kvm_put_kvm(vcpu->kvm); + } + +@@ -99,10 +98,12 @@ void kvm_clear_async_pf_completion_queue(struct kvm_vcpu *vcpu) + struct kvm_async_pf *work = + list_entry(vcpu->async_pf.queue.next, + typeof(*work), queue); +- cancel_work_sync(&work->work); + list_del(&work->queue); +- if (!work->done) /* work was canceled */ ++ if (cancel_work_sync(&work->work)) { ++ mmput(work->mm); ++ kvm_put_kvm(vcpu->kvm); /* == work->vcpu->kvm */ + kmem_cache_free(async_pf_cache, work); ++ } + } + + spin_lock(&vcpu->async_pf.lock); +@@ -163,13 +164,12 @@ int kvm_setup_async_pf(struct kvm_vcpu *vcpu, gva_t gva, gfn_t gfn, + return 0; + + work->page = NULL; +- work->done = false; + work->vcpu = vcpu; + work->gva = gva; + work->addr = gfn_to_hva(vcpu->kvm, gfn); + work->arch = *arch; + work->mm = current->mm; +- atomic_inc(&work->mm->mm_count); ++ atomic_inc(&work->mm->mm_users); + kvm_get_kvm(work->vcpu->kvm); + + /* this can't really happen otherwise gfn_to_pfn_async +@@ -187,7 +187,7 @@ int kvm_setup_async_pf(struct kvm_vcpu *vcpu, gva_t gva, gfn_t gfn, + return 1; + retry_sync: + kvm_put_kvm(work->vcpu->kvm); +- mmdrop(work->mm); ++ mmput(work->mm); + kmem_cache_free(async_pf_cache, work); + return 0; + } |