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[4.2.y-ckt stable] Linux 4.2.8-ckt12 stable review

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  [4.2.y-ckt stable] Linux 4.2.8-ckt12 stable review Kamal Mostafa <kamal@canonical.com> - 2016-06-09 23:20 +0200
    [PATCH 4.2.y-ckt 018/206] [media] media: v4l2-compat-ioctl32: fix missing reserved field copy in put_v4l2_create32 Kamal Mostafa <kamal@canonical.com> - 2016-06-09 23:20 +0200
    [PATCH 4.2.y-ckt 007/206] ath5k: Change led pin configuration for compaq c700 laptop Kamal Mostafa <kamal@canonical.com> - 2016-06-09 23:20 +0200
    [PATCH 4.2.y-ckt 012/206] drm/gma500: Fix possible out of bounds read Kamal Mostafa <kamal@canonical.com> - 2016-06-09 23:20 +0200
    [PATCH 4.2.y-ckt 205/206] drivers/hwspinlock: use correct radix tree API Kamal Mostafa <kamal@canonical.com> - 2016-06-09 23:30 +0200
    [PATCH 4.2.y-ckt 196/206] netlink: Fix dump skb leak/double free Kamal Mostafa <kamal@canonical.com> - 2016-06-09 23:30 +0200
    [PATCH 4.2.y-ckt 185/206] MIPS: BMIPS: Clear MIPS_CACHE_ALIASES earlier Kamal Mostafa <kamal@canonical.com> - 2016-06-09 23:30 +0200
    [PATCH 4.2.y-ckt 199/206] tipc: fix nametable publication field in nl compat Kamal Mostafa <kamal@canonical.com> - 2016-06-09 23:30 +0200
    [PATCH 4.2.y-ckt 195/206] x86/PCI: Mark Broadwell-EP Home Agent 1 as having non-compliant BARs Kamal Mostafa <kamal@canonical.com> - 2016-06-09 23:30 +0200
    [PATCH 4.2.y-ckt 181/206] s390/vmem: fix identity mapping Kamal Mostafa <kamal@canonical.com> - 2016-06-09 23:30 +0200
    [PATCH 4.2.y-ckt 147/206] affs: fix remount failure when there are no options changed Kamal Mostafa <kamal@canonical.com> - 2016-06-09 23:30 +0200
    [PATCH 4.2.y-ckt 176/206] ACPI / sysfs: fix error code in get_status() Kamal Mostafa <kamal@canonical.com> - 2016-06-09 23:30 +0200
    [PATCH 4.2.y-ckt 190/206] MIPS: BMIPS: Adjust mips-hpt-frequency for BCM7435 Kamal Mostafa <kamal@canonical.com> - 2016-06-09 23:30 +0200
    [PATCH 4.2.y-ckt 193/206] i40e: fix an uninitialized variable bug Kamal Mostafa <kamal@canonical.com> - 2016-06-09 23:30 +0200
    [PATCH 4.2.y-ckt 192/206] IB/IWPM: Fix a potential skb leak Kamal Mostafa <kamal@canonical.com> - 2016-06-09 23:30 +0200
    [PATCH 4.2.y-ckt 204/206] uapi glibc compat: fix compilation when !__USE_MISC in glibc Kamal Mostafa <kamal@canonical.com> - 2016-06-09 23:30 +0200
    [PATCH 4.2.y-ckt 173/206] metag: Fix atomic_*_return inline asm constraints Kamal Mostafa <kamal@canonical.com> - 2016-06-09 23:30 +0200
    [PATCH 4.2.y-ckt 186/206] MIPS: BMIPS: local_r4k___flush_cache_all needs to blast S-cache Kamal Mostafa <kamal@canonical.com> - 2016-06-09 23:30 +0200
    [PATCH 4.2.y-ckt 202/206] net: ehea: avoid null pointer dereference Kamal Mostafa <kamal@canonical.com> - 2016-06-09 23:30 +0200
    [PATCH 4.2.y-ckt 183/206] powerpc/sstep: Fix sstep.c compile on powerpcspe Kamal Mostafa <kamal@canonical.com> - 2016-06-09 23:30 +0200
    [PATCH 4.2.y-ckt 201/206] batman-adv: fix skb deref after free Kamal Mostafa <kamal@canonical.com> - 2016-06-09 23:30 +0200
    [PATCH 4.2.y-ckt 180/206] ata: sata_dwc_460ex: remove incorrect locking Kamal Mostafa <kamal@canonical.com> - 2016-06-09 23:30 +0200
    [PATCH 4.2.y-ckt 178/206] MIPS: BMIPS: Fix PRID_IMP_BMIPS5000 masking for BMIPS5200 Kamal Mostafa <kamal@canonical.com> - 2016-06-09 23:30 +0200
    [PATCH 4.2.y-ckt 188/206] MIPS: math-emu: Fix BC1{EQ,NE}Z emulation Kamal Mostafa <kamal@canonical.com> - 2016-06-09 23:30 +0200
    [PATCH 4.2.y-ckt 194/206] blk-mq: fix undefined behaviour in order_to_size() Kamal Mostafa <kamal@canonical.com> - 2016-06-09 23:30 +0200
    [PATCH 4.2.y-ckt 177/206] clk: qcom: msm8916: Fix crypto clock flags Kamal Mostafa <kamal@canonical.com> - 2016-06-09 23:30 +0200
    [PATCH 4.2.y-ckt 189/206] MIPS: Fix BC1{EQ,NE}Z return offset calculation Kamal Mostafa <kamal@canonical.com> - 2016-06-09 23:30 +0200
    [PATCH 4.2.y-ckt 206/206] RDMA/cxgb3: device driver frees DMA memory with different size Kamal Mostafa <kamal@canonical.com> - 2016-06-09 23:30 +0200
    [PATCH 4.2.y-ckt 169/206] cxl: Fix DAR check & use REGION_ID instead of opencoding Kamal Mostafa <kamal@canonical.com> - 2016-06-09 23:30 +0200
    [PATCH 4.2.y-ckt 191/206] IB/srp: Print "ib_srp: " prefix once Kamal Mostafa <kamal@canonical.com> - 2016-06-09 23:30 +0200
    [PATCH 4.2.y-ckt 184/206] MIPS: BMIPS: BMIPS5000 has I cache filing from D cache Kamal Mostafa <kamal@canonical.com> - 2016-06-09 23:30 +0200
    [PATCH 4.2.y-ckt 187/206] MIPS: BMIPS: Pretty print BMIPS5200 processor name Kamal Mostafa <kamal@canonical.com> - 2016-06-09 23:30 +0200
    [PATCH 4.2.y-ckt 200/206] sunrpc: Update RPCBIND_MAXNETIDLEN Kamal Mostafa <kamal@canonical.com> - 2016-06-09 23:30 +0200
    [PATCH 4.2.y-ckt 198/206] sched/preempt: Fix preempt_count manipulations Kamal Mostafa <kamal@canonical.com> - 2016-06-09 23:30 +0200
    [PATCH 4.2.y-ckt 179/206] NFS: Fix an LOCK/OPEN race when unlinking an open file Kamal Mostafa <kamal@canonical.com> - 2016-06-09 23:30 +0200
    [PATCH 4.2.y-ckt 203/206] tuntap: correctly wake up process during uninit Kamal Mostafa <kamal@canonical.com> - 2016-06-09 23:30 +0200
    [PATCH 4.2.y-ckt 151/206] serial: doc: Un-document non-existing uart_write_console() Kamal Mostafa <kamal@canonical.com> - 2016-06-09 23:30 +0200
    [PATCH 4.2.y-ckt 197/206] MIPS: ath79: fix regression in PCI window initialization Kamal Mostafa <kamal@canonical.com> - 2016-06-09 23:30 +0200
    [PATCH 4.2.y-ckt 182/206] perf tools: Fix perf regs mask generation Kamal Mostafa <kamal@canonical.com> - 2016-06-09 23:30 +0200
    [PATCH 4.2.y-ckt 146/206] hpfs: fix remount failure when there are no options changed Kamal Mostafa <kamal@canonical.com> - 2016-06-09 23:40 +0200
    [PATCH 4.2.y-ckt 170/206] taskstats: fix nl parsing in accounting/getdelays.c Kamal Mostafa <kamal@canonical.com> - 2016-06-09 23:40 +0200
    [PATCH 4.2.y-ckt 148/206] hpfs: implement the show_options method Kamal Mostafa <kamal@canonical.com> - 2016-06-09 23:40 +0200
    [PATCH 4.2.y-ckt 136/206] wait/ptrace: assume __WALL if the child is traced Kamal Mostafa <kamal@canonical.com> - 2016-06-09 23:40 +0200
    [PATCH 4.2.y-ckt 150/206] ARM: dts: kirkwood: add kirkwood-ds112.dtb to Makefile Kamal Mostafa <kamal@canonical.com> - 2016-06-09 23:40 +0200
    [PATCH 4.2.y-ckt 174/206] tty: vt, return error when con_startup fails Kamal Mostafa <kamal@canonical.com> - 2016-06-09 23:40 +0200
    [PATCH 4.2.y-ckt 144/206] Input: pwm-beeper - fix - scheduling while atomic Kamal Mostafa <kamal@canonical.com> - 2016-06-09 23:40 +0200
    [PATCH 4.2.y-ckt 165/206] EDAC: Increment correct counter in edac_inc_ue_error() Kamal Mostafa <kamal@canonical.com> - 2016-06-09 23:40 +0200
    [PATCH 4.2.y-ckt 149/206] regmap: cache: Fix typo in cache_bypass parameter description Kamal Mostafa <kamal@canonical.com> - 2016-06-09 23:40 +0200
    [PATCH 4.2.y-ckt 143/206] Input: xpad - prevent spurious input from wired Xbox 360 controllers Kamal Mostafa <kamal@canonical.com> - 2016-06-09 23:40 +0200
    [PATCH 4.2.y-ckt 161/206] cx23885: uninitialized variable in cx23885_av_work_handler() Kamal Mostafa <kamal@canonical.com> - 2016-06-09 23:40 +0200
    [PATCH 4.2.y-ckt 168/206] ARM: debug: remove extraneous DEBUG_HI3716_UART option Kamal Mostafa <kamal@canonical.com> - 2016-06-09 23:40 +0200
    [PATCH 4.2.y-ckt 145/206] MIPS: lib: Mark intrinsics notrace Kamal Mostafa <kamal@canonical.com> - 2016-06-09 23:40 +0200
    [PATCH 4.2.y-ckt 154/206] iommu/vt-d: Improve fault handler error messages Kamal Mostafa <kamal@canonical.com> - 2016-06-09 23:40 +0200
    [PATCH 4.2.y-ckt 160/206] am437x-vpfe: fix an uninitialized variable bug Kamal Mostafa <kamal@canonical.com> - 2016-06-09 23:40 +0200
    [PATCH 4.2.y-ckt 164/206] perf test: Ignore kcore files in the "vmlinux matches kallsyms" test Kamal Mostafa <kamal@canonical.com> - 2016-06-09 23:40 +0200
    [PATCH 4.2.y-ckt 156/206] ARM: OMAP2+: hwmod: fix _idle() hwmod state sanity check sequence Kamal Mostafa <kamal@canonical.com> - 2016-06-09 23:40 +0200
    [PATCH 4.2.y-ckt 162/206] ipv6, token: allow for clearing the current device token Kamal Mostafa <kamal@canonical.com> - 2016-06-09 23:40 +0200
    [PATCH 4.2.y-ckt 166/206] PCI: Supply CPU physical address (not bus address) to iomem_is_exclusive() Kamal Mostafa <kamal@canonical.com> - 2016-06-09 23:40 +0200
    [PATCH 4.2.y-ckt 171/206] char: Drop bogus dependency of DEVPORT on !M68K Kamal Mostafa <kamal@canonical.com> - 2016-06-09 23:40 +0200
    [PATCH 4.2.y-ckt 157/206] security: drop the unused hook skb_owned_by Kamal Mostafa <kamal@canonical.com> - 2016-06-09 23:40 +0200
    [PATCH 4.2.y-ckt 163/206] usb: gadget: f_fs: Fix EFAULT generation for async read operations Kamal Mostafa <kamal@canonical.com> - 2016-06-09 23:40 +0200
    [PATCH 4.2.y-ckt 172/206] driver-core: use 'dev' argument in dev_dbg_ratelimited stub Kamal Mostafa <kamal@canonical.com> - 2016-06-09 23:40 +0200
    [PATCH 4.2.y-ckt 159/206] am437x-vfpe: fix typo in vpfe_get_app_input_index Kamal Mostafa <kamal@canonical.com> - 2016-06-09 23:40 +0200
    [PATCH 4.2.y-ckt 153/206] iommu/vt-d: Ratelimit fault handler Kamal Mostafa <kamal@canonical.com> - 2016-06-09 23:40 +0200
    [PATCH 4.2.y-ckt 155/206] power: ipaq-micro-battery: freeing the wrong variable Kamal Mostafa <kamal@canonical.com> - 2016-06-09 23:40 +0200
    [PATCH 4.2.y-ckt 167/206] alpha/PCI: Call iomem_is_exclusive() for IORESOURCE_MEM, but not IORESOURCE_IO Kamal Mostafa <kamal@canonical.com> - 2016-06-09 23:40 +0200
    [PATCH 4.2.y-ckt 175/206] cpufreq: Fix GOV_LIMITS handling for the userspace governor Kamal Mostafa <kamal@canonical.com> - 2016-06-09 23:40 +0200
    [PATCH 4.2.y-ckt 158/206] mfd: lp8788-irq: Uninitialized variable in irq handler Kamal Mostafa <kamal@canonical.com> - 2016-06-09 23:40 +0200
    [PATCH 4.2.y-ckt 152/206] iio: buffer: add missing descriptions in iio_buffer_access_funcs Kamal Mostafa <kamal@canonical.com> - 2016-06-09 23:40 +0200
    [PATCH 4.2.y-ckt 142/206] dell-rbtn: Ignore ACPI notifications if device is suspended Kamal Mostafa <kamal@canonical.com> - 2016-06-09 23:40 +0200
    [PATCH 4.2.y-ckt 127/206] Input: uinput - handle compat ioctl for UI_SET_PHYS Kamal Mostafa <kamal@canonical.com> - 2016-06-09 23:50 +0200
    [PATCH 4.2.y-ckt 113/206] fs/cifs: correctly to anonymous authentication via NTLMSSP Kamal Mostafa <kamal@canonical.com> - 2016-06-09 23:50 +0200
    [PATCH 4.2.y-ckt 124/206] cifs: Create dedicated keyring for spnego operations Kamal Mostafa <kamal@canonical.com> - 2016-06-09 23:50 +0200
    [PATCH 4.2.y-ckt 114/206] fs/cifs: correctly to anonymous authentication for the LANMAN authentication Kamal Mostafa <kamal@canonical.com> - 2016-06-09 23:50 +0200
    [PATCH 4.2.y-ckt 112/206] drm/fb_helper: Fix references to dev->mode_config.num_connector Kamal Mostafa <kamal@canonical.com> - 2016-06-09 23:50 +0200
    [PATCH 4.2.y-ckt 094/206] powerpc/eeh: Don't report error in eeh_pe_reset_and_recover() Kamal Mostafa <kamal@canonical.com> - 2016-06-09 23:50 +0200
    [PATCH 4.2.y-ckt 123/206] ASoC: ak4642: Enable cache usage to fix crashes on resume Kamal Mostafa <kamal@canonical.com> - 2016-06-09 23:50 +0200
    [PATCH 4.2.y-ckt 117/206] remove directory incorrectly tries to set delete on close on non-empty directories Kamal Mostafa <kamal@canonical.com> - 2016-06-09 23:50 +0200
    [PATCH 4.2.y-ckt 104/206] MIPS: Disable preemption during prctl(PR_SET_FP_MODE, ...) Kamal Mostafa <kamal@canonical.com> - 2016-06-09 23:50 +0200
    [PATCH 4.2.y-ckt 116/206] fs/cifs: correctly to anonymous authentication for the NTLM(v2) authentication Kamal Mostafa <kamal@canonical.com> - 2016-06-09 23:50 +0200
    [PATCH 4.2.y-ckt 133/206] mmc: sdhci-pci: Remove MMC_CAP_BUS_WIDTH_TEST for Intel controllers Kamal Mostafa <kamal@canonical.com> - 2016-06-09 23:50 +0200
    [PATCH 4.2.y-ckt 134/206] mmc: sdhci-acpi: Remove MMC_CAP_BUS_WIDTH_TEST for Intel controllers Kamal Mostafa <kamal@canonical.com> - 2016-06-09 23:50 +0200
    [PATCH 4.2.y-ckt 131/206] drm/i915: Don't leave old junk in ilk active watermarks on readout Kamal Mostafa <kamal@canonical.com> - 2016-06-09 23:50 +0200
    [PATCH 4.2.y-ckt 121/206] xfs: skip stale inodes in xfs_iflush_cluster Kamal Mostafa <kamal@canonical.com> - 2016-06-09 23:50 +0200
    [PATCH 4.2.y-ckt 109/206] PCI: Disable all BAR sizing for devices with non-compliant BARs Kamal Mostafa <kamal@canonical.com> - 2016-06-09 23:50 +0200
    [PATCH 4.2.y-ckt 122/206] KVM: MTRR: remove MSR 0x2f8 Kamal Mostafa <kamal@canonical.com> - 2016-06-09 23:50 +0200
    [PATCH 4.2.y-ckt 140/206] drm/amdgpu: Fix hdmi deep color support. Kamal Mostafa <kamal@canonical.com> - 2016-06-09 23:50 +0200
    [PATCH 4.2.y-ckt 132/206] mmc: longer timeout for long read time quirk Kamal Mostafa <kamal@canonical.com> - 2016-06-09 23:50 +0200
    [PATCH 4.2.y-ckt 118/206] cpuidle: Fix cpuidle_state_is_coupled() argument in cpuidle_enter() Kamal Mostafa <kamal@canonical.com> - 2016-06-09 23:50 +0200
    [PATCH 4.2.y-ckt 106/206] ring-buffer: Use long for nr_pages to avoid overflow failures Kamal Mostafa <kamal@canonical.com> - 2016-06-09 23:50 +0200
    [PATCH 4.2.y-ckt 128/206] PM / sleep: Handle failures in device_suspend_late() consistently Kamal Mostafa <kamal@canonical.com> - 2016-06-09 23:50 +0200
    [PATCH 4.2.y-ckt 137/206] xen/x86: actually allocate legacy interrupts on PV guests Kamal Mostafa <kamal@canonical.com> - 2016-06-09 23:50 +0200
    [PATCH 4.2.y-ckt 105/206] MIPS: Force CPUs to lose FP context during mode switches Kamal Mostafa <kamal@canonical.com> - 2016-06-09 23:50 +0200
    [PATCH 4.2.y-ckt 119/206] xfs: xfs_iflush_cluster fails to abort on error Kamal Mostafa <kamal@canonical.com> - 2016-06-09 23:50 +0200
    [PATCH 4.2.y-ckt 110/206] MIPS: MSA: Fix a link error on `_init_msa_upper' with older GCC Kamal Mostafa <kamal@canonical.com> - 2016-06-09 23:50 +0200
    [PATCH 4.2.y-ckt 107/206] ring-buffer: Prevent overflow of size in ring_buffer_resize() Kamal Mostafa <kamal@canonical.com> - 2016-06-09 23:50 +0200
    [PATCH 4.2.y-ckt 126/206] kvm: arm64: Fix EC field in inject_abt64 Kamal Mostafa <kamal@canonical.com> - 2016-06-09 23:50 +0200
    [PATCH 4.2.y-ckt 120/206] xfs: fix inode validity check in xfs_iflush_cluster Kamal Mostafa <kamal@canonical.com> - 2016-06-09 23:50 +0200
    [PATCH 4.2.y-ckt 125/206] ALSA: hda - Fix headphone noise on Dell XPS 13 9360 Kamal Mostafa <kamal@canonical.com> - 2016-06-09 23:50 +0200
    [PATCH 4.2.y-ckt 135/206] sunrpc: fix stripping of padded MIC tokens Kamal Mostafa <kamal@canonical.com> - 2016-06-09 23:50 +0200
    [PATCH 4.2.y-ckt 139/206] UBI: Fix static volume checks when Fastmap is used Kamal Mostafa <kamal@canonical.com> - 2016-06-09 23:50 +0200
    [PATCH 4.2.y-ckt 129/206] mm: use phys_addr_t for reserve_bootmem_region() arguments Kamal Mostafa <kamal@canonical.com> - 2016-06-09 23:50 +0200
    [PATCH 4.2.y-ckt 115/206] fs/cifs: correctly to anonymous authentication for the NTLM(v1) authentication Kamal Mostafa <kamal@canonical.com> - 2016-06-09 23:50 +0200
    [PATCH 4.2.y-ckt 098/206] MIPS: Sync icache & dcache in set_pte_at Kamal Mostafa <kamal@canonical.com> - 2016-06-09 23:50 +0200
    [PATCH 4.2.y-ckt 073/206] MIPS: Reserve nosave data for hibernation Kamal Mostafa <kamal@canonical.com> - 2016-06-10 00:00 +0200
    [PATCH 4.2.y-ckt 065/206] ext4: silence UBSAN in ext4_mb_init() Kamal Mostafa <kamal@canonical.com> - 2016-06-10 00:00 +0200
    [PATCH 4.2.y-ckt 095/206] powerpc/eeh: Restore initial state in eeh_pe_reset_and_recover() Kamal Mostafa <kamal@canonical.com> - 2016-06-10 00:00 +0200
    [PATCH 4.2.y-ckt 102/206] MIPS: ptrace: Fix FP context restoration FCSR regression Kamal Mostafa <kamal@canonical.com> - 2016-06-10 00:00 +0200
    [PATCH 4.2.y-ckt 081/206] USB: serial: mxuport: fix use-after-free in probe error path Kamal Mostafa <kamal@canonical.com> - 2016-06-10 00:00 +0200
    [PATCH 4.2.y-ckt 085/206] MIPS: KVM: Fix timer IRQ race when writing CP0_Compare Kamal Mostafa <kamal@canonical.com> - 2016-06-10 00:00 +0200
    [PATCH 4.2.y-ckt 079/206] USB: serial: io_edgeport: fix memory leaks in probe error path Kamal Mostafa <kamal@canonical.com> - 2016-06-10 00:00 +0200
    [PATCH 4.2.y-ckt 084/206] MIPS: KVM: Fix timer IRQ race when freezing timer Kamal Mostafa <kamal@canonical.com> - 2016-06-10 00:00 +0200
    [PATCH 4.2.y-ckt 088/206] irqchip/gic-v3: Configure all interrupts as non-secure Group-1 Kamal Mostafa <kamal@canonical.com> - 2016-06-10 00:00 +0200
    [PATCH 4.2.y-ckt 072/206] MIPS: Avoid using unwind_stack() with usermode Kamal Mostafa <kamal@canonical.com> - 2016-06-10 00:00 +0200
    [PATCH 4.2.y-ckt 093/206] sched/loadavg: Fix loadavg artifacts on fully idle and on fully loaded systems Kamal Mostafa <kamal@canonical.com> - 2016-06-10 00:00 +0200
    [PATCH 4.2.y-ckt 089/206] arm64: cpuinfo: Missing NULL terminator in compat_hwcap_str Kamal Mostafa <kamal@canonical.com> - 2016-06-10 00:00 +0200
    [PATCH 4.2.y-ckt 092/206] rtlwifi: pci: use dev_kfree_skb_irq instead of kfree_skb in rtl_pci_reset_trx_ring Kamal Mostafa <kamal@canonical.com> - 2016-06-10 00:00 +0200
    [PATCH 4.2.y-ckt 071/206] MIPS: Don't unwind to user mode with EVA Kamal Mostafa <kamal@canonical.com> - 2016-06-10 00:00 +0200
    [PATCH 4.2.y-ckt 096/206] Revert "powerpc/eeh: Fix crash in eeh_add_device_early() on Cell" Kamal Mostafa <kamal@canonical.com> - 2016-06-10 00:00 +0200
    [PATCH 4.2.y-ckt 078/206] USB: serial: io_edgeport: fix memory leaks in attach error path Kamal Mostafa <kamal@canonical.com> - 2016-06-10 00:00 +0200
    [PATCH 4.2.y-ckt 100/206] MIPS: Fix uapi include in exported asm/siginfo.h Kamal Mostafa <kamal@canonical.com> - 2016-06-10 00:00 +0200
    [PATCH 4.2.y-ckt 082/206] USB: serial: quatech2: fix use-after-free in probe error path Kamal Mostafa <kamal@canonical.com> - 2016-06-10 00:00 +0200
    [PATCH 4.2.y-ckt 063/206] ext4: fix oops on corrupted filesystem Kamal Mostafa <kamal@canonical.com> - 2016-06-10 00:00 +0200
    [PATCH 4.2.y-ckt 076/206] usb: host: xhci-rcar: Avoid long wait in xhci_reset() Kamal Mostafa <kamal@canonical.com> - 2016-06-10 00:00 +0200
    [PATCH 4.2.y-ckt 097/206] MIPS: Handle highmem pages in __update_cache Kamal Mostafa <kamal@canonical.com> - 2016-06-10 00:00 +0200
    [PATCH 4.2.y-ckt 101/206] MIPS: math-emu: Fix jalr emulation when rd == $0 Kamal Mostafa <kamal@canonical.com> - 2016-06-10 00:00 +0200
    [PATCH 4.2.y-ckt 077/206] mfd: omap-usb-tll: Fix scheduling while atomic BUG Kamal Mostafa <kamal@canonical.com> - 2016-06-10 00:00 +0200
    [PATCH 4.2.y-ckt 103/206] MIPS: ptrace: Prevent writes to read-only FCSR bits Kamal Mostafa <kamal@canonical.com> - 2016-06-10 00:00 +0200
    [PATCH 4.2.y-ckt 091/206] rtlwifi: Fix logic error in enter/exit power-save mode Kamal Mostafa <kamal@canonical.com> - 2016-06-10 00:00 +0200
    [PATCH 4.2.y-ckt 080/206] USB: serial: keyspan: fix use-after-free in probe error path Kamal Mostafa <kamal@canonical.com> - 2016-06-10 00:00 +0200
    [PATCH 4.2.y-ckt 090/206] kbuild: move -Wunused-const-variable to W=1 warning level Kamal Mostafa <kamal@canonical.com> - 2016-06-10 00:00 +0200
    [PATCH 4.2.y-ckt 083/206] crypto: caam - fix caam_jr_alloc() ret code Kamal Mostafa <kamal@canonical.com> - 2016-06-10 00:00 +0200
    [PATCH 4.2.y-ckt 087/206] irqchip/gic: Ensure ordering between read of INTACK and shared data Kamal Mostafa <kamal@canonical.com> - 2016-06-10 00:00 +0200
    [PATCH 4.2.y-ckt 044/206] Drivers: hv_vmbus: Fix signal to host condition Kamal Mostafa <kamal@canonical.com> - 2016-06-10 00:10 +0200
    [PATCH 4.2.y-ckt 066/206] arm64: Ensure pmd_present() returns false after pmd_mknotpresent() Kamal Mostafa <kamal@canonical.com> - 2016-06-10 00:10 +0200
    [PATCH 4.2.y-ckt 040/206] aacraid: Fix for aac_command_thread hang Kamal Mostafa <kamal@canonical.com> - 2016-06-10 00:10 +0200
    [PATCH 4.2.y-ckt 058/206] USB: serial: option: add more ZTE device ids Kamal Mostafa <kamal@canonical.com> - 2016-06-10 00:10 +0200
    [PATCH 4.2.y-ckt 069/206] can: fix handling of unmodifiable configuration options Kamal Mostafa <kamal@canonical.com> - 2016-06-10 00:10 +0200
    [PATCH 4.2.y-ckt 043/206] MIPS: ath79: make bootconsole wait for both THRE and TEMT Kamal Mostafa <kamal@canonical.com> - 2016-06-10 00:10 +0200
    [PATCH 4.2.y-ckt 070/206] MIPS: Fix siginfo.h to use strict posix types Kamal Mostafa <kamal@canonical.com> - 2016-06-10 00:10 +0200
    [PATCH 4.2.y-ckt 057/206] mcb: Fixed bar number assignment for the gdd Kamal Mostafa <kamal@canonical.com> - 2016-06-10 00:10 +0200
    [PATCH 4.2.y-ckt 052/206] thunderbolt: Fix double free of drom buffer Kamal Mostafa <kamal@canonical.com> - 2016-06-10 00:10 +0200
    [PATCH 4.2.y-ckt 064/206] ext4: address UBSAN warning in mb_find_order_for_block() Kamal Mostafa <kamal@canonical.com> - 2016-06-10 00:10 +0200
    [PATCH 4.2.y-ckt 042/206] ext4: fix hang when processing corrupted orphaned inode list Kamal Mostafa <kamal@canonical.com> - 2016-06-10 00:10 +0200
    [PATCH 4.2.y-ckt 047/206] mei: fix NULL dereferencing during FW initiated disconnection Kamal Mostafa <kamal@canonical.com> - 2016-06-10 00:10 +0200
    [PATCH 4.2.y-ckt 050/206] Fix OpenSSH pty regression on close Kamal Mostafa <kamal@canonical.com> - 2016-06-10 00:10 +0200
    [PATCH 4.2.y-ckt 053/206] USB: serial: option: add support for Cinterion PH8 and AHxx Kamal Mostafa <kamal@canonical.com> - 2016-06-10 00:10 +0200
    [PATCH 4.2.y-ckt 049/206] tty: Abstract tty buffer work Kamal Mostafa <kamal@canonical.com> - 2016-06-10 00:10 +0200
    [PATCH 4.2.y-ckt 068/206] ath10k: fix kernel panic, move arvifs list head init before htt init Kamal Mostafa <kamal@canonical.com> - 2016-06-10 00:10 +0200
    [PATCH 4.2.y-ckt 067/206] ARM: dts: exynos: Add interrupt line to MAX8997 PMIC on exynos4210-trats Kamal Mostafa <kamal@canonical.com> - 2016-06-10 00:10 +0200
    [PATCH 4.2.y-ckt 045/206] Drivers: hv: ring_buffer.c: fix comment style Kamal Mostafa <kamal@canonical.com> - 2016-06-10 00:10 +0200
    [PATCH 4.2.y-ckt 051/206] QE-UART: add "fsl,t1040-ucc-uart" to of_device_id Kamal Mostafa <kamal@canonical.com> - 2016-06-10 00:10 +0200
    [PATCH 4.2.y-ckt 033/206] usb: core: hub: hub_port_init lock controller instead of bus Kamal Mostafa <kamal@canonical.com> - 2016-06-10 00:10 +0200
    [PATCH 4.2.y-ckt 055/206] usb: misc: usbtest: format the data pattern according to max packet size Kamal Mostafa <kamal@canonical.com> - 2016-06-10 00:10 +0200
    [PATCH 4.2.y-ckt 048/206] mei: amthif: discard not read messages Kamal Mostafa <kamal@canonical.com> - 2016-06-10 00:10 +0200
    [PATCH 4.2.y-ckt 059/206] USB: serial: option: add even more ZTE device ids Kamal Mostafa <kamal@canonical.com> - 2016-06-10 00:10 +0200
    [PATCH 4.2.y-ckt 054/206] USB: leave LPM alone if possible when binding/unbinding interface drivers Kamal Mostafa <kamal@canonical.com> - 2016-06-10 00:10 +0200
    [PATCH 4.2.y-ckt 041/206] aacraid: Fix for KDUMP driver hang Kamal Mostafa <kamal@canonical.com> - 2016-06-10 00:10 +0200
    [PATCH 4.2.y-ckt 062/206] USB: serial: cp210x: fix hardware flow-control disable Kamal Mostafa <kamal@canonical.com> - 2016-06-10 00:10 +0200
    [PATCH 4.2.y-ckt 028/206] crypto: s5p-sss - Fix missed interrupts when working with 8 kB blocks Kamal Mostafa <kamal@canonical.com> - 2016-06-10 00:20 +0200
    [PATCH 4.2.y-ckt 031/206] pinctrl: exynos5440: Use off-stack memory for pinctrl_gpio_range Kamal Mostafa <kamal@canonical.com> - 2016-06-10 00:20 +0200
    [PATCH 4.2.y-ckt 039/206] aacraid: Relinquish CPU during timeout wait Kamal Mostafa <kamal@canonical.com> - 2016-06-10 00:20 +0200
    [PATCH 4.2.y-ckt 017/206] mfd: intel_quark_i2c_gpio: Remove clock tree on error path Kamal Mostafa <kamal@canonical.com> - 2016-06-10 00:20 +0200
    [PATCH 4.2.y-ckt 037/206] arm/arm64: KVM: Enforce Break-Before-Make on Stage-2 page tables Kamal Mostafa <kamal@canonical.com> - 2016-06-10 00:20 +0200
    [PATCH 4.2.y-ckt 032/206] btrfs: bugfix: handle FS_IOC32_{GETFLAGS,SETFLAGS,GETVERSION} in btrfs_ioctl Kamal Mostafa <kamal@canonical.com> - 2016-06-10 00:20 +0200
    [PATCH 4.2.y-ckt 016/206] mfd: intel_quark_i2c_gpio: Use clkdev_create() Kamal Mostafa <kamal@canonical.com> - 2016-06-10 00:20 +0200
    [PATCH 4.2.y-ckt 026/206] powerpc/book3s64: Fix branching to OOL handlers in relocatable kernel Kamal Mostafa <kamal@canonical.com> - 2016-06-10 00:20 +0200
    [PATCH 4.2.y-ckt 023/206] hwmon: (ads7828) Enable internal reference Kamal Mostafa <kamal@canonical.com> - 2016-06-10 00:20 +0200
    [PATCH 4.2.y-ckt 003/206] ath10k: fix debugfs pktlog_filter write Kamal Mostafa <kamal@canonical.com> - 2016-06-10 00:20 +0200
    [PATCH 4.2.y-ckt 034/206] serial: 8250_pci: fix divide error bug if baud rate is 0 Kamal Mostafa <kamal@canonical.com> - 2016-06-10 00:20 +0200
    [PATCH 4.2.y-ckt 024/206] ath10k: fix rx_channel during hw reconfigure Kamal Mostafa <kamal@canonical.com> - 2016-06-10 00:20 +0200
    [PATCH 4.2.y-ckt 030/206] ath9k: Fix LED polarity for some Mini PCI AR9220 MB92 cards. Kamal Mostafa <kamal@canonical.com> - 2016-06-10 00:20 +0200
    [PATCH 4.2.y-ckt 020/206] Revert "scsi: fix soft lockup in scsi_remove_target() on module removal" Kamal Mostafa <kamal@canonical.com> - 2016-06-10 00:20 +0200
    [PATCH 4.2.y-ckt 036/206] staging: comedi: das1800: fix possible NULL dereference Kamal Mostafa <kamal@canonical.com> - 2016-06-10 00:20 +0200
    [PATCH 4.2.y-ckt 001/206] ath10k: fix firmware assert in monitor mode Kamal Mostafa <kamal@canonical.com> - 2016-06-10 00:20 +0200
    [PATCH 4.2.y-ckt 022/206] usb: f_mass_storage: test whether thread is running before starting another Kamal Mostafa <kamal@canonical.com> - 2016-06-10 00:20 +0200
    [PATCH 4.2.y-ckt 015/206] cpuidle: Indicate when a device has been unregistered Kamal Mostafa <kamal@canonical.com> - 2016-06-10 00:20 +0200
    [PATCH 4.2.y-ckt 014/206] Bluetooth: vhci: purge unhandled skbs Kamal Mostafa <kamal@canonical.com> - 2016-06-10 00:20 +0200
    [PATCH 4.2.y-ckt 013/206] Bluetooth: vhci: fix open_timeout vs. hdev race Kamal Mostafa <kamal@canonical.com> - 2016-06-10 00:20 +0200
    [PATCH 4.2.y-ckt 010/206] rtlwifi: rtl8723be: Add antenna select module parameter Kamal Mostafa <kamal@canonical.com> - 2016-06-10 00:20 +0200
    [PATCH 4.2.y-ckt 029/206] ath9k: Add a module parameter to invert LED polarity. Kamal Mostafa <kamal@canonical.com> - 2016-06-10 00:20 +0200
    [PATCH 4.2.y-ckt 027/206] PM / Runtime: Fix error path in pm_runtime_force_resume() Kamal Mostafa <kamal@canonical.com> - 2016-06-10 00:20 +0200
    [PATCH 4.2.y-ckt 025/206] Bluetooth: vhci: Fix race at creating hci device Kamal Mostafa <kamal@canonical.com> - 2016-06-10 00:20 +0200
    [PATCH 4.2.y-ckt 009/206] xfs: Don't wrap growfs AGFL indexes Kamal Mostafa <kamal@canonical.com> - 2016-06-10 00:30 +0200
    [PATCH 4.2.y-ckt 004/206] drm/i915: Call intel_dp_mst_resume() before resuming displays Kamal Mostafa <kamal@canonical.com> - 2016-06-10 00:30 +0200
    [PATCH 4.2.y-ckt 008/206] xfs: disallow rw remount on fs with unknown ro-compat features Kamal Mostafa <kamal@canonical.com> - 2016-06-10 00:30 +0200
    [PATCH 4.2.y-ckt 002/206] drm/i915: Fix race condition in intel_dp_destroy_mst_connector() Kamal Mostafa <kamal@canonical.com> - 2016-06-10 00:30 +0200
    [PATCH 4.2.y-ckt 011/206] rtlwifi: btcoexist: Implement antenna selection Kamal Mostafa <kamal@canonical.com> - 2016-06-10 00:30 +0200
    [PATCH 4.2.y-ckt 006/206] drm/i915: Exit cherryview_irq_handler() after one pass Kamal Mostafa <kamal@canonical.com> - 2016-06-10 00:30 +0200
      RE: [PATCH 4.2.y-ckt 006/206] drm/i915: Exit  cherryview_irq_handler() after one pass "Ursulin, Tvrtko" <tvrtko.ursulin@intel.com> - 2016-06-10 10:50 +0200

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#1418713 — [PATCH 4.2.y-ckt 201/206] batman-adv: fix skb deref after free

4.2.8-ckt12 -stable review patch.  If anyone has any objections, please let me know.

---8<------------------------------------------------------------

From: Florian Westphal <fw@strlen.de>

commit 63d443efe8be2c1d02b30d7e4edeb9aa085352b3 upstream.

batadv_send_skb_to_orig() calls dev_queue_xmit() so we can't use skb->len.

Fixes: 953324776d6d ("batman-adv: network coding - buffer unicast packets before forward")
Signed-off-by: Florian Westphal <fw@strlen.de>
Reviewed-by: Sven Eckelmann <sven@narfation.org>
Signed-off-by: Marek Lindner <mareklindner@neomailbox.ch>
Signed-off-by: Antonio Quartulli <a@unstable.cc>
Signed-off-by: Kamal Mostafa <kamal@canonical.com>
---
 net/batman-adv/routing.c | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/net/batman-adv/routing.c b/net/batman-adv/routing.c
index cf57b20..fe25db2 100644
--- a/net/batman-adv/routing.c
+++ b/net/batman-adv/routing.c
@@ -585,6 +585,7 @@ static int batadv_route_unicast_packet(struct sk_buff *skb,
 	struct batadv_unicast_packet *unicast_packet;
 	struct ethhdr *ethhdr = eth_hdr(skb);
 	int res, hdr_len, ret = NET_RX_DROP;
+	unsigned int len;
 
 	unicast_packet = (struct batadv_unicast_packet *)skb->data;
 
@@ -625,6 +626,7 @@ static int batadv_route_unicast_packet(struct sk_buff *skb,
 	if (hdr_len > 0)
 		batadv_skb_set_priority(skb, hdr_len);
 
+	len = skb->len;
 	res = batadv_send_skb_to_orig(skb, orig_node, recv_if);
 
 	/* translate transmit result into receive result */
@@ -632,7 +634,7 @@ static int batadv_route_unicast_packet(struct sk_buff *skb,
 		/* skb was transmitted and consumed */
 		batadv_inc_counter(bat_priv, BATADV_CNT_FORWARD);
 		batadv_add_counter(bat_priv, BATADV_CNT_FORWARD_BYTES,
-				   skb->len + ETH_HLEN);
+				   len + ETH_HLEN);
 
 		ret = NET_RX_SUCCESS;
 	} else if (res == NET_XMIT_POLICED) {
-- 
2.7.4

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#1418714 — [PATCH 4.2.y-ckt 180/206] ata: sata_dwc_460ex: remove incorrect locking

4.2.8-ckt12 -stable review patch.  If anyone has any objections, please let me know.

---8<------------------------------------------------------------

From: Mans Rullgard <mans@mansr.com>

commit 55e610cdd28c0ad3dce0652030c0296d549673f3 upstream.

This lock is already taken in ata_scsi_queuecmd() a few levels up the
call stack so attempting to take it here is an error.  Moreover, it is
pointless in the first place since it only protects a single, atomic
assignment.

Enabling lock debugging gives the following output:

=============================================
[ INFO: possible recursive locking detected ]
4.4.0-rc5+ #189 Not tainted
---------------------------------------------
kworker/u2:3/37 is trying to acquire lock:
 (&(&host->lock)->rlock){-.-...}, at: [<90283294>] sata_dwc_exec_command_by_tag.constprop.14+0x44/0x8c

but task is already holding lock:
 (&(&host->lock)->rlock){-.-...}, at: [<902761ac>] ata_scsi_queuecmd+0x2c/0x330

other info that might help us debug this:
 Possible unsafe locking scenario:

       CPU0
       ----
  lock(&(&host->lock)->rlock);
  lock(&(&host->lock)->rlock);

 *** DEADLOCK ***
 May be due to missing lock nesting notation

4 locks held by kworker/u2:3/37:
 #0:  ("events_unbound"){.+.+.+}, at: [<9003a0a4>] process_one_work+0x12c/0x430
 #1:  ((&entry->work)){+.+.+.}, at: [<9003a0a4>] process_one_work+0x12c/0x430
 #2:  (&bdev->bd_mutex){+.+.+.}, at: [<9011fd54>] __blkdev_get+0x50/0x380
 #3:  (&(&host->lock)->rlock){-.-...}, at: [<902761ac>] ata_scsi_queuecmd+0x2c/0x330

stack backtrace:
CPU: 0 PID: 37 Comm: kworker/u2:3 Not tainted 4.4.0-rc5+ #189
Workqueue: events_unbound async_run_entry_fn
Stack : 90b38e30 00000021 00000003 9b2a6040 00000000 9005f3f0 904fc8dc 00000025
        906b96e4 00000000 90528648 9b3336c4 904fc8dc 9009bf18 00000002 00000004
        00000000 00000000 9b3336c4 9b3336e4 904fc8dc 9003d074 00000000 90500000
        9005e738 00000000 00000000 00000000 00000000 00000000 00000000 00000000
        6e657665 755f7374 756f626e 0000646e 00000000 00000000 9b00ca00 9b025000
          ...
Call Trace:
[<90009d6c>] show_stack+0x88/0xa4
[<90057744>] __lock_acquire+0x1ce8/0x2154
[<900583e4>] lock_acquire+0x64/0x8c
[<9045ff10>] _raw_spin_lock_irqsave+0x54/0x78
[<90283294>] sata_dwc_exec_command_by_tag.constprop.14+0x44/0x8c
[<90283484>] sata_dwc_qc_issue+0x1a8/0x24c
[<9026b39c>] ata_qc_issue+0x1f0/0x410
[<90273c6c>] ata_scsi_translate+0xb4/0x200
[<90276234>] ata_scsi_queuecmd+0xb4/0x330
[<9025800c>] scsi_dispatch_cmd+0xd0/0x128
[<90259934>] scsi_request_fn+0x58c/0x638
[<901a3e50>] __blk_run_queue+0x40/0x5c
[<901a83d4>] blk_queue_bio+0x27c/0x28c
[<901a5914>] generic_make_request+0xf0/0x188
[<901a5a54>] submit_bio+0xa8/0x194
[<9011adcc>] submit_bh_wbc.isra.23+0x15c/0x17c
[<9011c908>] block_read_full_page+0x3e4/0x428
[<9009e2e0>] do_read_cache_page+0xac/0x210
[<9009fd90>] read_cache_page+0x18/0x24
[<901bbd18>] read_dev_sector+0x38/0xb0
[<901bd174>] msdos_partition+0xb4/0x5c0
[<901bcb8c>] check_partition+0x140/0x274
[<901bba60>] rescan_partitions+0xa0/0x2b0
[<9011ff68>] __blkdev_get+0x264/0x380
[<901201ac>] blkdev_get+0x128/0x36c
[<901b9378>] add_disk+0x3c0/0x4bc
[<90268268>] sd_probe_async+0x100/0x224
[<90043a44>] async_run_entry_fn+0x50/0x124
[<9003a11c>] process_one_work+0x1a4/0x430
[<9003a4f4>] worker_thread+0x14c/0x4fc
[<900408f4>] kthread+0xd0/0xe8
[<90004338>] ret_from_kernel_thread+0x14/0x1c

Fixes: 62936009f35a ("[libata] Add 460EX on-chip SATA driver, sata_dwc_460ex")
Tested-by: Christian Lamparter <chunkeey@googlemail.com>
Signed-off-by: Mans Rullgard <mans@mansr.com>
Signed-off-by: Tejun Heo <tj@kernel.org>
Signed-off-by: Kamal Mostafa <kamal@canonical.com>
---
 drivers/ata/sata_dwc_460ex.c | 4 +---
 1 file changed, 1 insertion(+), 3 deletions(-)

diff --git a/drivers/ata/sata_dwc_460ex.c b/drivers/ata/sata_dwc_460ex.c
index 9020349..7a7faca 100644
--- a/drivers/ata/sata_dwc_460ex.c
+++ b/drivers/ata/sata_dwc_460ex.c
@@ -924,15 +924,13 @@ static void sata_dwc_exec_command_by_tag(struct ata_port *ap,
 					 struct ata_taskfile *tf,
 					 u8 tag, u32 cmd_issued)
 {
-	unsigned long flags;
 	struct sata_dwc_device_port *hsdevp = HSDEVP_FROM_AP(ap);
 
 	dev_dbg(ap->dev, "%s cmd(0x%02x): %s tag=%d\n", __func__, tf->command,
 		ata_get_cmd_descript(tf->command), tag);
 
-	spin_lock_irqsave(&ap->host->lock, flags);
 	hsdevp->cmd_issued[tag] = cmd_issued;
-	spin_unlock_irqrestore(&ap->host->lock, flags);
+
 	/*
 	 * Clear SError before executing a new command.
 	 * sata_dwc_scr_write and read can not be used here. Clearing the PM
-- 
2.7.4

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#1418715 — [PATCH 4.2.y-ckt 178/206] MIPS: BMIPS: Fix PRID_IMP_BMIPS5000 masking for BMIPS5200

4.2.8-ckt12 -stable review patch.  If anyone has any objections, please let me know.

---8<------------------------------------------------------------

From: Florian Fainelli <f.fainelli@gmail.com>

commit cbbda6e7c9c3e4532bd70a73ff9d5e6655c894dc upstream.

BMIPS5000 have a PrID value of 0x5A00 and BMIPS5200 have a PrID value of
0x5B00, which, masked with 0x5A00, returns 0x5A00. Update all conditionals on
the PrID to cover both variants since we are going to need this to enable
BMIPS5200 SMP. The existing check, masking with 0xFF00 would not cover
BMIPS5200 at all.

Fixes: 68e6a78373a6d ("MIPS: BMIPS: Add PRId for BMIPS5200 (Whirlwind)")
Fixes: 6465460c92a85 ("MIPS: BMIPS: change compile time checks to runtime checks")
Signed-off-by: Florian Fainelli <f.fainelli@gmail.com>
Cc: john@phrozen.org
Cc: cernekee@gmail.com
Cc: jogo@openwrt.org
Cc: jaedon.shin@gmail.com
Cc: jfraser@broadcom.com
Cc: pgynther@google.com
Cc: dragan.stancevic@gmail.com
Cc: linux-mips@linux-mips.org
Patchwork: https://patchwork.linux-mips.org/patch/12279/
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
Signed-off-by: Kamal Mostafa <kamal@canonical.com>
---
 arch/mips/kernel/bmips_vec.S | 9 +++++++--
 1 file changed, 7 insertions(+), 2 deletions(-)

diff --git a/arch/mips/kernel/bmips_vec.S b/arch/mips/kernel/bmips_vec.S
index 8649507..d9495f3 100644
--- a/arch/mips/kernel/bmips_vec.S
+++ b/arch/mips/kernel/bmips_vec.S
@@ -93,7 +93,8 @@ NESTED(bmips_reset_nmi_vec, PT_SIZE, sp)
 #if defined(CONFIG_CPU_BMIPS5000)
 	mfc0	k0, CP0_PRID
 	li	k1, PRID_IMP_BMIPS5000
-	andi	k0, 0xff00
+	/* mask with PRID_IMP_BMIPS5000 to cover both variants */
+	andi	k0, PRID_IMP_BMIPS5000
 	bne	k0, k1, 1f
 
 	/* if we're not on core 0, this must be the SMP boot signal */
@@ -166,10 +167,12 @@ bmips_smp_entry:
 2:
 #endif /* CONFIG_CPU_BMIPS4350 || CONFIG_CPU_BMIPS4380 */
 #if defined(CONFIG_CPU_BMIPS5000)
-	/* set exception vector base */
+	/* mask with PRID_IMP_BMIPS5000 to cover both variants */
 	li	k1, PRID_IMP_BMIPS5000
+	andi	k0, PRID_IMP_BMIPS5000
 	bne	k0, k1, 3f
 
+	/* set exception vector base */
 	la	k0, ebase
 	lw	k0, 0(k0)
 	mtc0	k0, $15, 1
@@ -263,6 +266,8 @@ LEAF(bmips_enable_xks01)
 #endif /* CONFIG_CPU_BMIPS4380 */
 #if defined(CONFIG_CPU_BMIPS5000)
 	li	t1, PRID_IMP_BMIPS5000
+	/* mask with PRID_IMP_BMIPS5000 to cover both variants */
+	andi	t2, PRID_IMP_BMIPS5000
 	bne	t2, t1, 2f
 
 	mfc0	t0, $22, 5
-- 
2.7.4

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#1418716 — [PATCH 4.2.y-ckt 188/206] MIPS: math-emu: Fix BC1{EQ,NE}Z emulation

4.2.8-ckt12 -stable review patch.  If anyone has any objections, please let me know.

---8<------------------------------------------------------------

From: Paul Burton <paul.burton@imgtec.com>

commit 93583e178ebfdd2fadf950eef1547f305cac12ca upstream.

The conditions for branching when emulating the BC1EQZ & BC1NEZ
instructions were backwards, leading to each of those instructions being
treated as the other. Fix this by reversing the conditions, and clear up
the code a little for readability & checkpatch.

Fixes: c909ca718e8f ("MIPS: math-emu: Emulate missing BC1{EQ,NE}Z instructions")
Signed-off-by: Paul Burton <paul.burton@imgtec.com>
Reviewed-by: James Hogan <james.hogan@imgtec.com>
Cc: Maciej W. Rozycki <macro@imgtec.com>
Cc: linux-mips@linux-mips.org
Cc: linux-kernel@vger.kernel.org
Patchwork: https://patchwork.linux-mips.org/patch/13150/
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
Signed-off-by: Kamal Mostafa <kamal@canonical.com>
---
 arch/mips/math-emu/cp1emu.c | 11 ++++++-----
 1 file changed, 6 insertions(+), 5 deletions(-)

diff --git a/arch/mips/math-emu/cp1emu.c b/arch/mips/math-emu/cp1emu.c
index 2bf9209..8d9133f 100644
--- a/arch/mips/math-emu/cp1emu.c
+++ b/arch/mips/math-emu/cp1emu.c
@@ -975,9 +975,10 @@ static int cop1Emulate(struct pt_regs *xcp, struct mips_fpu_struct *ctx,
 		struct mm_decoded_insn dec_insn, void *__user *fault_addr)
 {
 	unsigned long contpc = xcp->cp0_epc + dec_insn.pc_inc;
-	unsigned int cond, cbit;
+	unsigned int cond, cbit, bit0;
 	mips_instruction ir;
 	int likely, pc_inc;
+	union fpureg *fpr;
 	u32 __user *wva;
 	u64 __user *dva;
 	u32 wval;
@@ -1189,14 +1190,14 @@ emul:
 				return SIGILL;
 
 			cond = likely = 0;
+			fpr = &current->thread.fpu.fpr[MIPSInst_RT(ir)];
+			bit0 = get_fpr32(fpr, 0) & 0x1;
 			switch (MIPSInst_RS(ir)) {
 			case bc1eqz_op:
-				if (get_fpr32(&current->thread.fpu.fpr[MIPSInst_RT(ir)], 0) & 0x1)
-				    cond = 1;
+				cond = bit0 == 0;
 				break;
 			case bc1nez_op:
-				if (!(get_fpr32(&current->thread.fpu.fpr[MIPSInst_RT(ir)], 0) & 0x1))
-				    cond = 1;
+				cond = bit0 != 0;
 				break;
 			}
 			goto branch_common;
-- 
2.7.4

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#1418717 — [PATCH 4.2.y-ckt 194/206] blk-mq: fix undefined behaviour in order_to_size()

4.2.8-ckt12 -stable review patch.  If anyone has any objections, please let me know.

---8<------------------------------------------------------------

From: Bartlomiej Zolnierkiewicz <b.zolnierkie@samsung.com>

commit b3a834b1596ac668df206aa2bb1f191c31f5f5e4 upstream.

When this_order variable in blk_mq_init_rq_map() becomes zero
the code incorrectly decrements the variable and passes the result
to order_to_size() helper causing undefined behaviour:

 UBSAN: Undefined behaviour in block/blk-mq.c:1459:27
 shift exponent 4294967295 is too large for 32-bit type 'unsigned int'
 CPU: 0 PID: 1 Comm: swapper/0 Not tainted 4.6.0-rc6-00072-g33656a1 #22

Fix the code by checking this_order variable for not having the zero
value first.

Reported-by: Meelis Roos <mroos@linux.ee>
Fixes: 320ae51feed5 ("blk-mq: new multi-queue block IO queueing mechanism")
Signed-off-by: Bartlomiej Zolnierkiewicz <b.zolnierkie@samsung.com>
Signed-off-by: Jens Axboe <axboe@fb.com>
Signed-off-by: Kamal Mostafa <kamal@canonical.com>
---
 block/blk-mq.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/block/blk-mq.c b/block/blk-mq.c
index 0990d4c..7d5f8cb 100644
--- a/block/blk-mq.c
+++ b/block/blk-mq.c
@@ -1488,7 +1488,7 @@ static struct blk_mq_tags *blk_mq_init_rq_map(struct blk_mq_tag_set *set,
 		int to_do;
 		void *p;
 
-		while (left < order_to_size(this_order - 1) && this_order)
+		while (this_order && left < order_to_size(this_order - 1))
 			this_order--;
 
 		do {
-- 
2.7.4

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#1418718 — [PATCH 4.2.y-ckt 177/206] clk: qcom: msm8916: Fix crypto clock flags

4.2.8-ckt12 -stable review patch.  If anyone has any objections, please let me know.

---8<------------------------------------------------------------

From: Andy Gross <andy.gross@linaro.org>

commit 2a0974aa1a0b40a92387ea03dbfeacfbc9ba182c upstream.

This patch adds the CLK_SET_RATE_PARENT flag for the crypto core and
ahb blocks.  Without this flag, clk_set_rate can fail for certain
frequency requests.

Signed-off-by: Andy Gross <andy.gross@linaro.org>
Fixes: 3966fab8b6ab ("clk: qcom: Add MSM8916 Global Clock Controller support")
Signed-off-by: Stephen Boyd <sboyd@codeaurora.org>
Signed-off-by: Kamal Mostafa <kamal@canonical.com>
---
 drivers/clk/qcom/gcc-msm8916.c | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/drivers/clk/qcom/gcc-msm8916.c b/drivers/clk/qcom/gcc-msm8916.c
index 5d75bff..36d21eb 100644
--- a/drivers/clk/qcom/gcc-msm8916.c
+++ b/drivers/clk/qcom/gcc-msm8916.c
@@ -1996,6 +1996,7 @@ static struct clk_branch gcc_crypto_clk = {
 				"crypto_clk_src",
 			},
 			.num_parents = 1,
+			.flags = CLK_SET_RATE_PARENT,
 			.ops = &clk_branch2_ops,
 		},
 	},
@@ -2285,6 +2286,7 @@ static struct clk_branch gcc_prng_ahb_clk = {
 				"pcnoc_bfdcd_clk_src",
 			},
 			.num_parents = 1,
+			.flags = CLK_SET_RATE_PARENT,
 			.ops = &clk_branch2_ops,
 		},
 	},
-- 
2.7.4

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#1418719 — [PATCH 4.2.y-ckt 189/206] MIPS: Fix BC1{EQ,NE}Z return offset calculation

4.2.8-ckt12 -stable review patch.  If anyone has any objections, please let me know.

---8<------------------------------------------------------------

From: Paul Burton <paul.burton@imgtec.com>

commit ac1496980f1d2752f26769f5db63afbc9ac2b603 upstream.

The conditions for branching when emulating the BC1EQZ & BC1NEZ
instructions were backwards, leading to each of those instructions being
treated as the other. Fix this by reversing the conditions, and clear up
the code a little for readability & checkpatch.

Fixes: c8a34581ec09 ("MIPS: Emulate the BC1{EQ,NE}Z FPU instructions")
Signed-off-by: Paul Burton <paul.burton@imgtec.com>
Reviewed-by: James Hogan <james.hogan@imgtec.com>
Cc: linux-mips@linux-mips.org
Cc: linux-kernel@vger.kernel.org
Patchwork: https://patchwork.linux-mips.org/patch/13151/
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
Signed-off-by: Kamal Mostafa <kamal@canonical.com>
---
 arch/mips/kernel/branch.c | 18 +++---------------
 1 file changed, 3 insertions(+), 15 deletions(-)

diff --git a/arch/mips/kernel/branch.c b/arch/mips/kernel/branch.c
index d8f9b35..ceca6cc 100644
--- a/arch/mips/kernel/branch.c
+++ b/arch/mips/kernel/branch.c
@@ -688,21 +688,9 @@ int __compute_return_epc_for_insn(struct pt_regs *regs,
 			}
 			lose_fpu(1);    /* Save FPU state for the emulator. */
 			reg = insn.i_format.rt;
-			bit = 0;
-			switch (insn.i_format.rs) {
-			case bc1eqz_op:
-				/* Test bit 0 */
-				if (get_fpr32(&current->thread.fpu.fpr[reg], 0)
-				    & 0x1)
-					bit = 1;
-				break;
-			case bc1nez_op:
-				/* Test bit 0 */
-				if (!(get_fpr32(&current->thread.fpu.fpr[reg], 0)
-				      & 0x1))
-					bit = 1;
-				break;
-			}
+			bit = get_fpr32(&current->thread.fpu.fpr[reg], 0) & 0x1;
+			if (insn.i_format.rs == bc1eqz_op)
+				bit = !bit;
 			own_fpu(1);
 			if (bit)
 				epc = epc + 4 +
-- 
2.7.4

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#1418721 — [PATCH 4.2.y-ckt 206/206] RDMA/cxgb3: device driver frees DMA memory with different size

4.2.8-ckt12 -stable review patch.  If anyone has any objections, please let me know.

---8<------------------------------------------------------------

From: Honggang Li <honli@redhat.com>

commit 0de4cbb3dddca35ecd06b95918f38439c9c6401f upstream.

[  598.852037] ------------[ cut here ]------------
[  598.856698] WARNING: at lib/dma-debug.c:887 check_unmap+0xf8/0x920()
[  598.863079] cxgb3 0000:01:00.0: DMA-API: device driver frees DMA memory with different size [device address=0x0000000003310000] [map size=17 bytes] [unmap size=16 bytes]
[  598.878265] Modules linked in: xprtrdma ib_isert iscsi_target_mod ib_iser libiscsi scsi_transport_iscsi ib_srpt target_core_mod ib_srp scsi_transport_srp scsi_tgt ib_ipoib rdma_ucm ib_ucm ib_uverbs ib_umad rdma_cm ib_cm iw_cm ib_sa ib_mad kvm_amd kvm ipmi_devintf ipmi_ssif dcdbas pcspkr ipmi_si sg ipmi_msghandler acpi_power_meter amd64_edac_mod shpchp edac_core sp5100_tco k10temp edac_mce_amd i2c_piix4 acpi_cpufreq nfsd auth_rpcgss nfs_acl lockd grace sunrpc ip_tables xfs libcrc32c sd_mod crc_t10dif crct10dif_generic crct10dif_common ata_generic iw_cxgb3 pata_acpi ib_core ib_addr mgag200 syscopyarea sysfillrect sysimgblt i2c_algo_bit drm_kms_helper ttm pata_atiixp drm ahci libahci serio_raw i2c_core cxgb3 libata bnx2 mdio dm_mirror dm_region_hash dm_log dm_mod
[  598.946822] CPU: 3 PID: 11820 Comm: cmtime Not tainted 3.10.0-327.el7.x86_64.debug #1
[  598.954681] Hardware name: Dell Inc. PowerEdge R415/0GXH08, BIOS 2.0.2 10/22/2012
[  598.962193]  ffff8808077479a8 000000000381a432 ffff880807747960 ffffffff81700918
[  598.969663]  ffff880807747998 ffffffff8108b6c0 ffff880807747a80 ffff8808063f55c0
[  598.977132]  ffffffff833ca850 0000000000000282 ffff88080b1bb800 ffff880807747a00
[  598.984602] Call Trace:
[  598.987062]  [<ffffffff81700918>] dump_stack+0x19/0x1b
[  598.992224]  [<ffffffff8108b6c0>] warn_slowpath_common+0x70/0xb0
[  598.998254]  [<ffffffff8108b75c>] warn_slowpath_fmt+0x5c/0x80
[  599.004033]  [<ffffffff813903b8>] check_unmap+0xf8/0x920
[  599.009369]  [<ffffffff81025959>] ? sched_clock+0x9/0x10
[  599.014702]  [<ffffffff81390cee>] debug_dma_free_coherent+0x7e/0xa0
[  599.021008]  [<ffffffffa01ece2c>] cxio_destroy_cq+0xcc/0x160 [iw_cxgb3]
[  599.027654]  [<ffffffffa01e8da0>] iwch_destroy_cq+0xf0/0x140 [iw_cxgb3]
[  599.034307]  [<ffffffffa01c4bfe>] ib_destroy_cq+0x1e/0x30 [ib_core]
[  599.040601]  [<ffffffffa04ff2d2>] ib_uverbs_close+0x302/0x4d0 [ib_uverbs]
[  599.047417]  [<ffffffff812335a2>] __fput+0x102/0x310
[  599.052401]  [<ffffffff8123388e>] ____fput+0xe/0x10
[  599.057297]  [<ffffffff810bbde4>] task_work_run+0xb4/0xe0
[  599.062719]  [<ffffffff81092a84>] do_exit+0x304/0xc60
[  599.067789]  [<ffffffff81025905>] ? native_sched_clock+0x35/0x80
[  599.073820]  [<ffffffff81025959>] ? sched_clock+0x9/0x10
[  599.079153]  [<ffffffff8170a49c>] ? _raw_spin_unlock_irq+0x2c/0x50
[  599.085358]  [<ffffffff8109346c>] do_group_exit+0x4c/0xc0
[  599.090779]  [<ffffffff810a8661>] get_signal_to_deliver+0x2e1/0x960
[  599.097071]  [<ffffffff8101c497>] do_signal+0x57/0x6e0
[  599.102229]  [<ffffffff81714bd1>] ? sysret_signal+0x5/0x4e
[  599.107738]  [<ffffffff8101cb7f>] do_notify_resume+0x5f/0xb0
[  599.113418]  [<ffffffff81714e7d>] int_signal+0x12/0x17
[  599.118576] ---[ end trace 1e4653102e7e7019 ]---
[  599.123211] Mapped at:
[  599.125577]  [<ffffffff8138ed8b>] debug_dma_alloc_coherent+0x2b/0x80
[  599.131968]  [<ffffffffa01ec862>] cxio_create_cq+0xf2/0x1f0 [iw_cxgb3]
[  599.139920]  [<ffffffffa01e9c05>] iwch_create_cq+0x105/0x4e0 [iw_cxgb3]
[  599.147895]  [<ffffffffa0500584>] create_cq.constprop.14+0x184/0x2e0 [ib_uverbs]
[  599.156649]  [<ffffffffa05027fb>] ib_uverbs_create_cq+0x10b/0x140 [ib_uverbs]

Fixes: b955150ea784 ('RDMA/cxgb3: When a user QP is marked in error, also mark the CQs in error')
Signed-off-by: Honggang Li <honli@redhat.com>
Reviewed-by: Leon Romanovsky <leonro@mellanox.com>
Reviewed-by: Steve Wise <swise@opengridcomputing.com>
Signed-off-by: Doug Ledford <dledford@redhat.com>
Signed-off-by: Kamal Mostafa <kamal@canonical.com>
---
 drivers/infiniband/hw/cxgb3/cxio_hal.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/infiniband/hw/cxgb3/cxio_hal.c b/drivers/infiniband/hw/cxgb3/cxio_hal.c
index de1c61b4..ada2e50 100644
--- a/drivers/infiniband/hw/cxgb3/cxio_hal.c
+++ b/drivers/infiniband/hw/cxgb3/cxio_hal.c
@@ -327,7 +327,7 @@ int cxio_destroy_cq(struct cxio_rdev *rdev_p, struct t3_cq *cq)
 	kfree(cq->sw_queue);
 	dma_free_coherent(&(rdev_p->rnic_info.pdev->dev),
 			  (1UL << (cq->size_log2))
-			  * sizeof(struct t3_cqe), cq->queue,
+			  * sizeof(struct t3_cqe) + 1, cq->queue,
 			  dma_unmap_addr(cq, mapping));
 	cxio_hal_put_cqid(rdev_p->rscp, cq->cqid);
 	return err;
-- 
2.7.4

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#1418722 — [PATCH 4.2.y-ckt 169/206] cxl: Fix DAR check & use REGION_ID instead of opencoding

4.2.8-ckt12 -stable review patch.  If anyone has any objections, please let me know.

---8<------------------------------------------------------------

From: "Aneesh Kumar K.V" <aneesh.kumar@linux.vnet.ibm.com>

commit 3b1dbfa14f97188ec33fdfc7acb66bea59a3bb21 upstream.

The current code will set _PAGE_USER to the access flags for any
fault address, because the ~ operation will be true for all address we
take a fault on. But setting _PAGE_USER also means that the fault will
be handled only if the page table have _PAGE_USER set. Hence there is
no security hole with the current code.

Now if it is an user space access, then the change in this patch really
don't have an impact because we have (!ctx->kernel) set true
and we take the if condition true.

Now kernel context created fault on an address in the kernel range
will result in a fault loop because we will not insert the
hash pte due to access and pte permission mismatch. This patch fix
the above issue.

Fixes: f204e0b8cedd ("cxl: Driver code for powernv PCIe based cards for userspace access")
Reviewed-by: Andrew Donnellan <andrew.donnellan@au1.ibm.com>
Acked-by: Ian Munsie <imunsie@au1.ibm.com>
Signed-off-by: Aneesh Kumar K.V <aneesh.kumar@linux.vnet.ibm.com>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Signed-off-by: Kamal Mostafa <kamal@canonical.com>
---
 drivers/misc/cxl/fault.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/misc/cxl/fault.c b/drivers/misc/cxl/fault.c
index 25a5418..e4080ce 100644
--- a/drivers/misc/cxl/fault.c
+++ b/drivers/misc/cxl/fault.c
@@ -152,7 +152,7 @@ static void cxl_handle_page_fault(struct cxl_context *ctx,
 	access = _PAGE_PRESENT;
 	if (dsisr & CXL_PSL_DSISR_An_S)
 		access |= _PAGE_RW;
-	if ((!ctx->kernel) || ~(dar & (1ULL << 63)))
+	if ((!ctx->kernel) || (REGION_ID(dar) == USER_REGION_ID))
 		access |= _PAGE_USER;
 
 	if (dsisr & DSISR_NOHPTE)
-- 
2.7.4

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#1418723 — [PATCH 4.2.y-ckt 191/206] IB/srp: Print "ib_srp: " prefix once

4.2.8-ckt12 -stable review patch.  If anyone has any objections, please let me know.

---8<------------------------------------------------------------

From: Bart Van Assche <bart.vanassche@sandisk.com>

commit cf1acab7d75652a372ee5b9c996689d518914e83 upstream.

pr_debug() already prints prefix PFX. Avoid that PFX is printed
twice if the debug statement in srp_add_target() is enabled.

Fixes: 34aa654ecb8e ("IB/srp: Avoid that I/O hangs due to a cable pull during LUN scanning")
Signed-off-by: Bart Van Assche <bart.vanassche@sandisk.com>
Reviewed-by: Leon Romanovsky <leonro@mellanox.com>
Tested-by: Laurence Oberman <loberman@redhat.com>
Cc: Christoph Hellwig <hch@lst.de>
Cc: Sagi Grimberg <sagi@grimberg.me>
Signed-off-by: Doug Ledford <dledford@redhat.com>
Signed-off-by: Kamal Mostafa <kamal@canonical.com>
---
 drivers/infiniband/ulp/srp/ib_srp.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/infiniband/ulp/srp/ib_srp.c b/drivers/infiniband/ulp/srp/ib_srp.c
index bdcb72e..fdf808e 100644
--- a/drivers/infiniband/ulp/srp/ib_srp.c
+++ b/drivers/infiniband/ulp/srp/ib_srp.c
@@ -2807,7 +2807,7 @@ static int srp_add_target(struct srp_host *host, struct srp_target_port *target)
 		goto out;
 	}
 
-	pr_debug(PFX "%s: SCSI scan succeeded - detected %d LUNs\n",
+	pr_debug("%s: SCSI scan succeeded - detected %d LUNs\n",
 		 dev_name(&target->scsi_host->shost_gendev),
 		 srp_sdev_count(target->scsi_host));
 
-- 
2.7.4

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#1418725 — [PATCH 4.2.y-ckt 184/206] MIPS: BMIPS: BMIPS5000 has I cache filing from D cache

4.2.8-ckt12 -stable review patch.  If anyone has any objections, please let me know.

---8<------------------------------------------------------------

From: Florian Fainelli <f.fainelli@gmail.com>

commit c130d2fd3d59fbd5d269f7d5827bd4ed1d94aec6 upstream.

BMIPS5000 and BMIPS52000 processors have their I-cache filling from the
D-cache. Since BMIPS_GENERIC does not provide (yet) a
cpu-feature-overrides.h file, this was not set anywhere, so make sure
the R4K cache detection takes care of that.

Fixes: d74b0172e4e2c ("MIPS: BMIPS: Add special cache handling in c-r4k.c")
Signed-off-by: Florian Fainelli <f.fainelli@gmail.com>
Cc: linux-mips@linux-mips.org
Patchwork: https://patchwork.linux-mips.org/patch/13010/
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
Signed-off-by: Kamal Mostafa <kamal@canonical.com>
---
 arch/mips/mm/c-r4k.c | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/arch/mips/mm/c-r4k.c b/arch/mips/mm/c-r4k.c
index fbea443..b2c1685 100644
--- a/arch/mips/mm/c-r4k.c
+++ b/arch/mips/mm/c-r4k.c
@@ -1305,6 +1305,10 @@ static void probe_pcache(void)
 		c->icache.flags |= MIPS_CACHE_IC_F_DC;
 		break;
 
+	case CPU_BMIPS5000:
+		c->icache.flags |= MIPS_CACHE_IC_F_DC;
+		break;
+
 	case CPU_LOONGSON2:
 		/*
 		 * LOONGSON2 has 4 way icache, but when using indexed cache op,
-- 
2.7.4

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#1418726 — [PATCH 4.2.y-ckt 187/206] MIPS: BMIPS: Pretty print BMIPS5200 processor name

4.2.8-ckt12 -stable review patch.  If anyone has any objections, please let me know.

---8<------------------------------------------------------------

From: Florian Fainelli <f.fainelli@gmail.com>

commit 37808d62afcdc420d98875c4b514c178d56f6815 upstream.

Just to ease debugging of multiplatform kernel, make sure we print
"Broadcom BMIPS5200" for the BMIPS5200 implementation instead of
Broadcom BMIPS5000.

Fixes: 68e6a78373a6d ("MIPS: BMIPS: Add PRId for BMIPS5200 (Whirlwind)")
Signed-off-by: Florian Fainelli <f.fainelli@gmail.com>
Cc: linux-mips@linux-mips.org
Patchwork: https://patchwork.linux-mips.org/patch/13014/
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
Signed-off-by: Kamal Mostafa <kamal@canonical.com>
---
 arch/mips/kernel/cpu-probe.c | 5 ++++-
 1 file changed, 4 insertions(+), 1 deletion(-)

diff --git a/arch/mips/kernel/cpu-probe.c b/arch/mips/kernel/cpu-probe.c
index dbe0792..cbd4c43 100644
--- a/arch/mips/kernel/cpu-probe.c
+++ b/arch/mips/kernel/cpu-probe.c
@@ -1248,7 +1248,10 @@ static inline void cpu_probe_broadcom(struct cpuinfo_mips *c, unsigned int cpu)
 	case PRID_IMP_BMIPS5000:
 	case PRID_IMP_BMIPS5200:
 		c->cputype = CPU_BMIPS5000;
-		__cpu_name[cpu] = "Broadcom BMIPS5000";
+		if ((c->processor_id & PRID_IMP_MASK) == PRID_IMP_BMIPS5200)
+			__cpu_name[cpu] = "Broadcom BMIPS5200";
+		else
+			__cpu_name[cpu] = "Broadcom BMIPS5000";
 		set_elf_platform(cpu, "bmips5000");
 		c->options |= MIPS_CPU_ULRI;
 		break;
-- 
2.7.4

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#1418727 — [PATCH 4.2.y-ckt 200/206] sunrpc: Update RPCBIND_MAXNETIDLEN

4.2.8-ckt12 -stable review patch.  If anyone has any objections, please let me know.

---8<------------------------------------------------------------

From: Chuck Lever <chuck.lever@oracle.com>

commit 4b9c7f9db9a003f5c342184dc4401c1b7f2efb39 upstream.

Commit 176e21ee2ec8 ("SUNRPC: Support for RPC over AF_LOCAL
transports") added a 5-character netid, but did not bump
RPCBIND_MAXNETIDLEN from 4 to 5.

Fixes: 176e21ee2ec8 ("SUNRPC: Support for RPC over AF_LOCAL ...")
Signed-off-by: Chuck Lever <chuck.lever@oracle.com>
Signed-off-by: Anna Schumaker <Anna.Schumaker@Netapp.com>
Signed-off-by: Kamal Mostafa <kamal@canonical.com>
---
 include/linux/sunrpc/msg_prot.h | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/include/linux/sunrpc/msg_prot.h b/include/linux/sunrpc/msg_prot.h
index 8073713..59cbf16 100644
--- a/include/linux/sunrpc/msg_prot.h
+++ b/include/linux/sunrpc/msg_prot.h
@@ -158,9 +158,9 @@ typedef __be32	rpc_fraghdr;
 
 /*
  * Note that RFC 1833 does not put any size restrictions on the
- * netid string, but all currently defined netid's fit in 4 bytes.
+ * netid string, but all currently defined netid's fit in 5 bytes.
  */
-#define RPCBIND_MAXNETIDLEN	(4u)
+#define RPCBIND_MAXNETIDLEN	(5u)
 
 /*
  * Universal addresses are introduced in RFC 1833 and further spelled
-- 
2.7.4

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#1418728 — [PATCH 4.2.y-ckt 198/206] sched/preempt: Fix preempt_count manipulations

4.2.8-ckt12 -stable review patch.  If anyone has any objections, please let me know.

---8<------------------------------------------------------------

From: Peter Zijlstra <peterz@infradead.org>

commit 2e636d5e66c35dfcbaf617aa8fa963f6847478fe upstream.

Vikram reported that his ARM64 compiler managed to 'optimize' away the
preempt_count manipulations in code like:

	preempt_enable_no_resched();
	put_user();
	preempt_disable();

Irrespective of that fact that that is horrible code that should be
fixed for many reasons, it does highlight a deficiency in the generic
preempt_count manipulators. As it is never right to combine/elide
preempt_count manipulations like this.

Therefore sprinkle some volatile in the two generic accessors to
ensure the compiler is aware of the fact that the preempt_count is
observed outside of the regular program-order view and thus cannot be
optimized away like this.

x86; the only arch not using the generic code is not affected as we
do all this in asm in order to use the segment base per-cpu stuff.

Reported-by: Vikram Mulukutla <markivx@codeaurora.org>
Tested-by: Vikram Mulukutla <markivx@codeaurora.org>
Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Thomas Gleixner <tglx@linutronix.de>
Fixes: a787870924db ("sched, arch: Create asm/preempt.h")
Link: http://lkml.kernel.org/r/20160516131751.GH3205@twins.programming.kicks-ass.net
Signed-off-by: Ingo Molnar <mingo@kernel.org>
Signed-off-by: Kamal Mostafa <kamal@canonical.com>
---
 include/asm-generic/preempt.h | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/include/asm-generic/preempt.h b/include/asm-generic/preempt.h
index 0bec580..af36c87 100644
--- a/include/asm-generic/preempt.h
+++ b/include/asm-generic/preempt.h
@@ -7,10 +7,10 @@
 
 static __always_inline int preempt_count(void)
 {
-	return current_thread_info()->preempt_count;
+	return READ_ONCE(current_thread_info()->preempt_count);
 }
 
-static __always_inline int *preempt_count_ptr(void)
+static __always_inline volatile int *preempt_count_ptr(void)
 {
 	return &current_thread_info()->preempt_count;
 }
-- 
2.7.4

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#1418729 — [PATCH 4.2.y-ckt 179/206] NFS: Fix an LOCK/OPEN race when unlinking an open file

4.2.8-ckt12 -stable review patch.  If anyone has any objections, please let me know.

---8<------------------------------------------------------------

From: Chuck Lever <chuck.lever@oracle.com>

commit 11476e9dec39d90fe1e9bf12abc6f3efe35a073d upstream.

At Connectathon 2016, we found that recent upstream Linux clients
would occasionally send a LOCK operation with a zero stateid. This
appeared to happen in close proximity to another thread returning
a delegation before unlinking the same file while it remained open.

Earlier, the client received a write delegation on this file and
returned the open stateid. Now, as it is getting ready to unlink the
file, it returns the write delegation. But there is still an open
file descriptor on that file, so the client must OPEN the file
again before it returns the delegation.

Since commit 24311f884189 ('NFSv4: Recovery of recalled read
delegations is broken'), nfs_open_delegation_recall() clears the
NFS_DELEGATED_STATE flag _before_ it sends the OPEN. This allows a
racing LOCK on the same inode to be put on the wire before the OPEN
operation has returned a valid open stateid.

To eliminate this race, serialize delegation return with the
acquisition of a file lock on the same file. Adopt the same approach
as is used in the unlock path.

This patch also eliminates a similar race seen when sending a LOCK
operation at the same time as returning a delegation on the same file.

Fixes: 24311f884189 ('NFSv4: Recovery of recalled read ... ')
Signed-off-by: Chuck Lever <chuck.lever@oracle.com>
[Anna: Add sentence about LOCK / delegation race]
Signed-off-by: Anna Schumaker <Anna.Schumaker@Netapp.com>
Signed-off-by: Kamal Mostafa <kamal@canonical.com>
---
 fs/nfs/nfs4proc.c | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/fs/nfs/nfs4proc.c b/fs/nfs/nfs4proc.c
index 731641a..c00bf26 100644
--- a/fs/nfs/nfs4proc.c
+++ b/fs/nfs/nfs4proc.c
@@ -6020,6 +6020,7 @@ static int nfs41_lock_expired(struct nfs4_state *state, struct file_lock *reques
 static int _nfs4_proc_setlk(struct nfs4_state *state, int cmd, struct file_lock *request)
 {
 	struct nfs_inode *nfsi = NFS_I(state->inode);
+	struct nfs4_state_owner *sp = state->owner;
 	unsigned char fl_flags = request->fl_flags;
 	int status = -ENOLCK;
 
@@ -6034,6 +6035,7 @@ static int _nfs4_proc_setlk(struct nfs4_state *state, int cmd, struct file_lock
 	status = do_vfs_lock(state->inode, request);
 	if (status < 0)
 		goto out;
+	mutex_lock(&sp->so_delegreturn_mutex);
 	down_read(&nfsi->rwsem);
 	if (test_bit(NFS_DELEGATED_STATE, &state->flags)) {
 		/* Yes: cache locks! */
@@ -6041,9 +6043,11 @@ static int _nfs4_proc_setlk(struct nfs4_state *state, int cmd, struct file_lock
 		request->fl_flags = fl_flags & ~FL_SLEEP;
 		status = do_vfs_lock(state->inode, request);
 		up_read(&nfsi->rwsem);
+		mutex_unlock(&sp->so_delegreturn_mutex);
 		goto out;
 	}
 	up_read(&nfsi->rwsem);
+	mutex_unlock(&sp->so_delegreturn_mutex);
 	status = _nfs4_do_setlk(state, cmd, request, NFS_LOCK_NEW);
 out:
 	request->fl_flags = fl_flags;
-- 
2.7.4

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#1418730 — [PATCH 4.2.y-ckt 203/206] tuntap: correctly wake up process during uninit

4.2.8-ckt12 -stable review patch.  If anyone has any objections, please let me know.

---8<------------------------------------------------------------

From: Jason Wang <jasowang@redhat.com>

commit addf8fc4acb1cf79492ac64966f07178793cb3d7 upstream.

We used to check dev->reg_state against NETREG_REGISTERED after each
time we are woke up. But after commit 9e641bdcfa4e ("net-tun:
restructure tun_do_read for better sleep/wakeup efficiency"), it uses
skb_recv_datagram() which does not check dev->reg_state. This will
result if we delete a tun/tap device after a process is blocked in the
reading. The device will wait for the reference count which was held
by that process for ever.

Fixes this by using RCV_SHUTDOWN which will be checked during
sk_recv_datagram() before trying to wake up the process during uninit.

Fixes: 9e641bdcfa4e ("net-tun: restructure tun_do_read for better
sleep/wakeup efficiency")
Cc: Eric Dumazet <edumazet@google.com>
Cc: Xi Wang <xii@google.com>
Cc: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Jason Wang <jasowang@redhat.com>
Acked-by: Eric Dumazet <edumazet@google.com>
Acked-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Kamal Mostafa <kamal@canonical.com>
---
 drivers/net/tun.c | 6 +++---
 1 file changed, 3 insertions(+), 3 deletions(-)

diff --git a/drivers/net/tun.c b/drivers/net/tun.c
index 6049086..2405f4e 100644
--- a/drivers/net/tun.c
+++ b/drivers/net/tun.c
@@ -567,11 +567,13 @@ static void tun_detach_all(struct net_device *dev)
 	for (i = 0; i < n; i++) {
 		tfile = rtnl_dereference(tun->tfiles[i]);
 		BUG_ON(!tfile);
+		tfile->socket.sk->sk_shutdown = RCV_SHUTDOWN;
 		tfile->socket.sk->sk_data_ready(tfile->socket.sk);
 		RCU_INIT_POINTER(tfile->tun, NULL);
 		--tun->numqueues;
 	}
 	list_for_each_entry(tfile, &tun->disabled, next) {
+		tfile->socket.sk->sk_shutdown = RCV_SHUTDOWN;
 		tfile->socket.sk->sk_data_ready(tfile->socket.sk);
 		RCU_INIT_POINTER(tfile->tun, NULL);
 	}
@@ -627,6 +629,7 @@ static int tun_attach(struct tun_struct *tun, struct file *file, bool skip_filte
 			goto out;
 	}
 	tfile->queue_index = tun->numqueues;
+	tfile->socket.sk->sk_shutdown &= ~RCV_SHUTDOWN;
 	rcu_assign_pointer(tfile->tun, tun);
 	rcu_assign_pointer(tun->tfiles[tun->numqueues], tfile);
 	tun->numqueues++;
@@ -1409,9 +1412,6 @@ static ssize_t tun_do_read(struct tun_struct *tun, struct tun_file *tfile,
 	if (!iov_iter_count(to))
 		return 0;
 
-	if (tun->dev->reg_state != NETREG_REGISTERED)
-		return -EIO;
-
 	/* Read frames from queue */
 	skb = __skb_recv_datagram(tfile->socket.sk, noblock ? MSG_DONTWAIT : 0,
 				  &peeked, &off, &err);
-- 
2.7.4

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#1418732 — [PATCH 4.2.y-ckt 151/206] serial: doc: Un-document non-existing uart_write_console()

4.2.8-ckt12 -stable review patch.  If anyone has any objections, please let me know.

---8<------------------------------------------------------------

From: Geert Uytterhoeven <geert+renesas@glider.be>

commit 834392a7d92677ff2bdc1c709b1171ee585b55c9 upstream.

uart_write_console() never existed, not even when the "new
uart_write_console function" was documented.

Fixes: 67ab7f596b6adbae ("[SERIAL] Update serial driver documentation")
Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
Signed-off-by: Jonathan Corbet <corbet@lwn.net>
Signed-off-by: Kamal Mostafa <kamal@canonical.com>
---
 Documentation/serial/driver | 5 -----
 1 file changed, 5 deletions(-)

diff --git a/Documentation/serial/driver b/Documentation/serial/driver
index c415b0e..7bff80876 100644
--- a/Documentation/serial/driver
+++ b/Documentation/serial/driver
@@ -28,11 +28,6 @@ The serial core provides a few helper functions.  This includes identifing
 the correct port structure (via uart_get_console) and decoding command line
 arguments (uart_parse_options).
 
-There is also a helper function (uart_write_console) which performs a
-character by character write, translating newlines to CRLF sequences.
-Driver writers are recommended to use this function rather than implementing
-their own version.
-
 
 Locking
 -------
-- 
2.7.4

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#1418733 — [PATCH 4.2.y-ckt 197/206] MIPS: ath79: fix regression in PCI window initialization

4.2.8-ckt12 -stable review patch.  If anyone has any objections, please let me know.

---8<------------------------------------------------------------

From: Felix Fietkau <nbd@nbd.name>

commit 9184dc8ffa56844352b3b9860e562ec4ee41176f upstream.

ath79_ddr_pci_win_base has the type void __iomem *, so register offsets
need to be a multiple of 4.

Cc: Alban Bedel <albeu@free.fr>
Fixes: 24b0e3e84fbf ("MIPS: ath79: Improve the DDR controller interface")
Signed-off-by: Felix Fietkau <nbd@nbd.name>
Cc: sergei.shtylyov@cogentembedded.com
Cc: linux-mips@linux-mips.org
Patchwork: https://patchwork.linux-mips.org/patch/13258/
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
Signed-off-by: Kamal Mostafa <kamal@canonical.com>
---
 arch/mips/ath79/common.c | 16 ++++++++--------
 1 file changed, 8 insertions(+), 8 deletions(-)

diff --git a/arch/mips/ath79/common.c b/arch/mips/ath79/common.c
index 3cedd1f..8ae4067 100644
--- a/arch/mips/ath79/common.c
+++ b/arch/mips/ath79/common.c
@@ -76,14 +76,14 @@ void ath79_ddr_set_pci_windows(void)
 {
 	BUG_ON(!ath79_ddr_pci_win_base);
 
-	__raw_writel(AR71XX_PCI_WIN0_OFFS, ath79_ddr_pci_win_base + 0);
-	__raw_writel(AR71XX_PCI_WIN1_OFFS, ath79_ddr_pci_win_base + 1);
-	__raw_writel(AR71XX_PCI_WIN2_OFFS, ath79_ddr_pci_win_base + 2);
-	__raw_writel(AR71XX_PCI_WIN3_OFFS, ath79_ddr_pci_win_base + 3);
-	__raw_writel(AR71XX_PCI_WIN4_OFFS, ath79_ddr_pci_win_base + 4);
-	__raw_writel(AR71XX_PCI_WIN5_OFFS, ath79_ddr_pci_win_base + 5);
-	__raw_writel(AR71XX_PCI_WIN6_OFFS, ath79_ddr_pci_win_base + 6);
-	__raw_writel(AR71XX_PCI_WIN7_OFFS, ath79_ddr_pci_win_base + 7);
+	__raw_writel(AR71XX_PCI_WIN0_OFFS, ath79_ddr_pci_win_base + 0x0);
+	__raw_writel(AR71XX_PCI_WIN1_OFFS, ath79_ddr_pci_win_base + 0x4);
+	__raw_writel(AR71XX_PCI_WIN2_OFFS, ath79_ddr_pci_win_base + 0x8);
+	__raw_writel(AR71XX_PCI_WIN3_OFFS, ath79_ddr_pci_win_base + 0xc);
+	__raw_writel(AR71XX_PCI_WIN4_OFFS, ath79_ddr_pci_win_base + 0x10);
+	__raw_writel(AR71XX_PCI_WIN5_OFFS, ath79_ddr_pci_win_base + 0x14);
+	__raw_writel(AR71XX_PCI_WIN6_OFFS, ath79_ddr_pci_win_base + 0x18);
+	__raw_writel(AR71XX_PCI_WIN7_OFFS, ath79_ddr_pci_win_base + 0x1c);
 }
 EXPORT_SYMBOL_GPL(ath79_ddr_set_pci_windows);
 
-- 
2.7.4

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#1418734 — [PATCH 4.2.y-ckt 182/206] perf tools: Fix perf regs mask generation

4.2.8-ckt12 -stable review patch.  If anyone has any objections, please let me know.

---8<------------------------------------------------------------

From: "Naveen N. Rao" <naveen.n.rao@linux.vnet.ibm.com>

commit f47822078dece7189cad0a5f472f148e5e916736 upstream.

On some architectures (powerpc in particular), the number of registers
exceeds what can be represented in an integer bitmask. Ensure we
generate the proper bitmask on such platforms.

Fixes: 71ad0f5e4 ("perf tools: Support for DWARF CFI unwinding on post processing")
Signed-off-by: Naveen N. Rao <naveen.n.rao@linux.vnet.ibm.com>
Acked-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Signed-off-by: Kamal Mostafa <kamal@canonical.com>
---
 tools/perf/util/perf_regs.c | 8 ++++----
 1 file changed, 4 insertions(+), 4 deletions(-)

diff --git a/tools/perf/util/perf_regs.c b/tools/perf/util/perf_regs.c
index 43168fb..2fb6f2a 100644
--- a/tools/perf/util/perf_regs.c
+++ b/tools/perf/util/perf_regs.c
@@ -7,18 +7,18 @@ int perf_reg_value(u64 *valp, struct regs_dump *regs, int id)
 	int i, idx = 0;
 	u64 mask = regs->mask;
 
-	if (regs->cache_mask & (1 << id))
+	if (regs->cache_mask & (1ULL << id))
 		goto out;
 
-	if (!(mask & (1 << id)))
+	if (!(mask & (1ULL << id)))
 		return -EINVAL;
 
 	for (i = 0; i < id; i++) {
-		if (mask & (1 << i))
+		if (mask & (1ULL << i))
 			idx++;
 	}
 
-	regs->cache_mask |= (1 << id);
+	regs->cache_mask |= (1ULL << id);
 	regs->cache_regs[id] = regs->regs[idx];
 
 out:
-- 
2.7.4

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#1418735 — [PATCH 4.2.y-ckt 146/206] hpfs: fix remount failure when there are no options changed

4.2.8-ckt12 -stable review patch.  If anyone has any objections, please let me know.

---8<------------------------------------------------------------

From: Mikulas Patocka <mikulas@twibright.com>

commit 44d51706b4685f965cd32acde3fe0fcc1e6198e8 upstream.

Commit ce657611baf9 ("hpfs: kstrdup() out of memory handling") checks if
the kstrdup function returns NULL due to out-of-memory condition.

However, if we are remounting a filesystem with no change to
filesystem-specific options, the parameter data is NULL.  In this case,
kstrdup returns NULL (because it was passed NULL parameter), although no
out of memory condition exists.  The mount syscall then fails with
ENOMEM.

This patch fixes the bug.  We fail with ENOMEM only if data is non-NULL.

The patch also changes the call to replace_mount_options - if we didn't
pass any filesystem-specific options, we don't call
replace_mount_options (thus we don't erase existing reported options).

Fixes: ce657611baf9 ("hpfs: kstrdup() out of memory handling")
Signed-off-by: Mikulas Patocka <mpatocka@redhat.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Signed-off-by: Kamal Mostafa <kamal@canonical.com>
---
 fs/hpfs/super.c | 5 +++--
 1 file changed, 3 insertions(+), 2 deletions(-)

diff --git a/fs/hpfs/super.c b/fs/hpfs/super.c
index 68a9bed..8c2b6e9 100644
--- a/fs/hpfs/super.c
+++ b/fs/hpfs/super.c
@@ -455,7 +455,7 @@ static int hpfs_remount_fs(struct super_block *s, int *flags, char *data)
 	struct hpfs_sb_info *sbi = hpfs_sb(s);
 	char *new_opts = kstrdup(data, GFP_KERNEL);
 
-	if (!new_opts)
+	if (data && !new_opts)
 		return -ENOMEM;
 
 	sync_filesystem(s);
@@ -493,7 +493,8 @@ static int hpfs_remount_fs(struct super_block *s, int *flags, char *data)
 
 	if (!(*flags & MS_RDONLY)) mark_dirty(s, 1);
 
-	replace_mount_options(s, new_opts);
+	if (new_opts)
+		replace_mount_options(s, new_opts);
 
 	hpfs_unlock(s);
 	return 0;
-- 
2.7.4

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