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Groups > linux.kernel > #1418691 > unrolled thread

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

Started byKamal Mostafa <kamal@canonical.com>
First post2016-06-09 23:20 +0200
Last post2016-06-10 10:50 +0200
Articles 10 on this page of 190 — 2 participants

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Contents

  [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

Page 10 of 10 — ← Prev page 1 … 8 9 [10]

#1418898 — [PATCH 4.2.y-ckt 029/206] ath9k: Add a module parameter to invert LED polarity.

FromKamal Mostafa <kamal@canonical.com>
Date2016-06-10 00:20 +0200
Subject[PATCH 4.2.y-ckt 029/206] ath9k: Add a module parameter to invert LED polarity.
Message-ID<rIgsY-47V-75@gated-at.bofh.it>
In reply to#1418691
4.2.8-ckt12 -stable review patch.  If anyone has any objections, please let me know.

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

From: "Vittorio Gambaletta (VittGam)" <linux-wireless@vittgam.net>

commit cd84042ce9040ad038e958bc67a46fcfc015c736 upstream.

The LED can be active high instead of active low on some hardware.

Add the led_active_high module parameter. It defaults to -1 to obey
platform data as before.

Setting the parameter to 1 or 0 will force the LED respectively
active high or active low.

Cc: <linux-wireless@vger.kernel.org>
Cc: <ath9k-devel@qca.qualcomm.com>
Cc: <ath9k-devel@lists.ath9k.org>
Signed-off-by: Vittorio Gambaletta <linuxbugs@vittgam.net>
Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
Signed-off-by: Kamal Mostafa <kamal@canonical.com>
---
 drivers/net/wireless/ath/ath9k/init.c | 7 +++++++
 1 file changed, 7 insertions(+)

diff --git a/drivers/net/wireless/ath/ath9k/init.c b/drivers/net/wireless/ath/ath9k/init.c
index fc6dc52..6a571d8 100644
--- a/drivers/net/wireless/ath/ath9k/init.c
+++ b/drivers/net/wireless/ath/ath9k/init.c
@@ -49,6 +49,10 @@ int ath9k_led_blink;
 module_param_named(blink, ath9k_led_blink, int, 0444);
 MODULE_PARM_DESC(blink, "Enable LED blink on activity");
 
+static int ath9k_led_active_high = -1;
+module_param_named(led_active_high, ath9k_led_active_high, int, 0444);
+MODULE_PARM_DESC(led_active_high, "Invert LED polarity");
+
 static int ath9k_btcoex_enable;
 module_param_named(btcoex_enable, ath9k_btcoex_enable, int, 0444);
 MODULE_PARM_DESC(btcoex_enable, "Enable wifi-BT coexistence");
@@ -600,6 +604,9 @@ static int ath9k_init_softc(u16 devid, struct ath_softc *sc,
 	if (ret)
 		return ret;
 
+	if (ath9k_led_active_high != -1)
+		ah->config.led_active_high = ath9k_led_active_high == 1;
+
 	/*
 	 * Enable WLAN/BT RX Antenna diversity only when:
 	 *
-- 
2.7.4

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#1418900 — [PATCH 4.2.y-ckt 027/206] PM / Runtime: Fix error path in pm_runtime_force_resume()

FromKamal Mostafa <kamal@canonical.com>
Date2016-06-10 00:20 +0200
Subject[PATCH 4.2.y-ckt 027/206] PM / Runtime: Fix error path in pm_runtime_force_resume()
Message-ID<rIgsY-47V-71@gated-at.bofh.it>
In reply to#1418691
4.2.8-ckt12 -stable review patch.  If anyone has any objections, please let me know.

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

From: Ulf Hansson <ulf.hansson@linaro.org>

commit 0ae3aeefabbeef26294e7a349b51f1c761d46c9f upstream.

As pm_runtime_set_active() may fail because the device's parent isn't
active, we can end up executing the ->runtime_resume() callback for the
device when it isn't allowed.

Fix this by invoking pm_runtime_set_active() before running the callback
and let's also deal with the error code.

Fixes: 37f204164dfb (PM: Add pm_runtime_suspend|resume_force functions)
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
Reviewed-by: Linus Walleij <linus.walleij@linaro.org>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Signed-off-by: Kamal Mostafa <kamal@canonical.com>
---
 drivers/base/power/runtime.c | 9 +++++++--
 1 file changed, 7 insertions(+), 2 deletions(-)

diff --git a/drivers/base/power/runtime.c b/drivers/base/power/runtime.c
index e1a10a0..9796a1a 100644
--- a/drivers/base/power/runtime.c
+++ b/drivers/base/power/runtime.c
@@ -1468,11 +1468,16 @@ int pm_runtime_force_resume(struct device *dev)
 		goto out;
 	}
 
-	ret = callback(dev);
+	ret = pm_runtime_set_active(dev);
 	if (ret)
 		goto out;
 
-	pm_runtime_set_active(dev);
+	ret = callback(dev);
+	if (ret) {
+		pm_runtime_set_suspended(dev);
+		goto out;
+	}
+
 	pm_runtime_mark_last_busy(dev);
 out:
 	pm_runtime_enable(dev);
-- 
2.7.4

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#1418901 — [PATCH 4.2.y-ckt 025/206] Bluetooth: vhci: Fix race at creating hci device

FromKamal Mostafa <kamal@canonical.com>
Date2016-06-10 00:20 +0200
Subject[PATCH 4.2.y-ckt 025/206] Bluetooth: vhci: Fix race at creating hci device
Message-ID<rIgsX-47V-67@gated-at.bofh.it>
In reply to#1418691
4.2.8-ckt12 -stable review patch.  If anyone has any objections, please let me know.

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

From: Takashi Iwai <tiwai@suse.de>

commit c7c999cb18da88a881e10e07f0724ad0bfaff770 upstream.

hci_vhci driver creates a hci device object dynamically upon each
HCI_VENDOR_PKT write.  Although it checks the already created object
and returns an error, it's still racy and may build multiple hci_dev
objects concurrently when parallel writes are performed, as the device
tracks only a single hci_dev object.

This patch introduces a mutex to protect against the concurrent device
creations.

Signed-off-by: Takashi Iwai <tiwai@suse.de>
Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
Signed-off-by: Kamal Mostafa <kamal@canonical.com>
---
 drivers/bluetooth/hci_vhci.c | 23 +++++++++++++++++------
 1 file changed, 17 insertions(+), 6 deletions(-)

diff --git a/drivers/bluetooth/hci_vhci.c b/drivers/bluetooth/hci_vhci.c
index a269b34..4c4aa7d 100644
--- a/drivers/bluetooth/hci_vhci.c
+++ b/drivers/bluetooth/hci_vhci.c
@@ -50,6 +50,7 @@ struct vhci_data {
 	wait_queue_head_t read_wait;
 	struct sk_buff_head readq;
 
+	struct mutex open_mutex;
 	struct delayed_work open_timeout;
 };
 
@@ -95,12 +96,15 @@ static int vhci_send_frame(struct hci_dev *hdev, struct sk_buff *skb)
 	return 0;
 }
 
-static int vhci_create_device(struct vhci_data *data, __u8 opcode)
+static int __vhci_create_device(struct vhci_data *data, __u8 opcode)
 {
 	struct hci_dev *hdev;
 	struct sk_buff *skb;
 	__u8 dev_type;
 
+	if (data->hdev)
+		return -EBADFD;
+
 	/* bits 0-1 are dev_type (BR/EDR or AMP) */
 	dev_type = opcode & 0x03;
 
@@ -159,6 +163,17 @@ static int vhci_create_device(struct vhci_data *data, __u8 opcode)
 	return 0;
 }
 
+static int vhci_create_device(struct vhci_data *data, __u8 opcode)
+{
+	int err;
+
+	mutex_lock(&data->open_mutex);
+	err = __vhci_create_device(data, opcode);
+	mutex_unlock(&data->open_mutex);
+
+	return err;
+}
+
 static inline ssize_t vhci_get_user(struct vhci_data *data,
 				    struct iov_iter *from)
 {
@@ -199,11 +214,6 @@ static inline ssize_t vhci_get_user(struct vhci_data *data,
 	case HCI_VENDOR_PKT:
 		cancel_delayed_work_sync(&data->open_timeout);
 
-		if (data->hdev) {
-			kfree_skb(skb);
-			return -EBADFD;
-		}
-
 		opcode = *((__u8 *) skb->data);
 		skb_pull(skb, 1);
 
@@ -328,6 +338,7 @@ static int vhci_open(struct inode *inode, struct file *file)
 	skb_queue_head_init(&data->readq);
 	init_waitqueue_head(&data->read_wait);
 
+	mutex_init(&data->open_mutex);
 	INIT_DELAYED_WORK(&data->open_timeout, vhci_open_timeout);
 
 	file->private_data = data;
-- 
2.7.4

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#1418903 — [PATCH 4.2.y-ckt 009/206] xfs: Don't wrap growfs AGFL indexes

FromKamal Mostafa <kamal@canonical.com>
Date2016-06-10 00:30 +0200
Subject[PATCH 4.2.y-ckt 009/206] xfs: Don't wrap growfs AGFL indexes
Message-ID<rIgCB-4da-13@gated-at.bofh.it>
In reply to#1418691
4.2.8-ckt12 -stable review patch.  If anyone has any objections, please let me know.

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

From: Dave Chinner <dchinner@redhat.com>

commit ad747e3b299671e1a53db74963cc6c5f6cdb9f6d upstream.

Commit 96f859d ("libxfs: pack the agfl header structure so
XFS_AGFL_SIZE is correct") allowed the freelist to use the empty
slot at the end of the freelist on 64 bit systems that was not
being used due to sizeof() rounding up the structure size.

This has caused versions of xfs_repair prior to 4.5.0 (which also
has the fix) to report this as a corruption once the filesystem has
been grown. Older kernels can also have problems (seen from a whacky
container/vm management environment) mounting filesystems grown on a
system with a newer kernel than the vm/container it is deployed on.

To avoid this problem, change the initial free list indexes not to
wrap across the end of the AGFL, hence avoiding the initialisation
of agf_fllast to the last index in the AGFL.

Signed-off-by: Dave Chinner <dchinner@redhat.com>
Reviewed-by: Carlos Maiolino <cmaiolino@redhat.com>
Signed-off-by: Dave Chinner <david@fromorbit.com>
Signed-off-by: Kamal Mostafa <kamal@canonical.com>
---
 fs/xfs/xfs_fsops.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/fs/xfs/xfs_fsops.c b/fs/xfs/xfs_fsops.c
index 9b3438a..df4bc93 100644
--- a/fs/xfs/xfs_fsops.c
+++ b/fs/xfs/xfs_fsops.c
@@ -243,8 +243,8 @@ xfs_growfs_data_private(
 		agf->agf_roots[XFS_BTNUM_CNTi] = cpu_to_be32(XFS_CNT_BLOCK(mp));
 		agf->agf_levels[XFS_BTNUM_BNOi] = cpu_to_be32(1);
 		agf->agf_levels[XFS_BTNUM_CNTi] = cpu_to_be32(1);
-		agf->agf_flfirst = 0;
-		agf->agf_fllast = cpu_to_be32(XFS_AGFL_SIZE(mp) - 1);
+		agf->agf_flfirst = cpu_to_be32(1);
+		agf->agf_fllast = 0;
 		agf->agf_flcount = 0;
 		tmpsize = agsize - XFS_PREALLOC_BLOCKS(mp);
 		agf->agf_freeblks = cpu_to_be32(tmpsize);
-- 
2.7.4

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#1418904 — [PATCH 4.2.y-ckt 004/206] drm/i915: Call intel_dp_mst_resume() before resuming displays

FromKamal Mostafa <kamal@canonical.com>
Date2016-06-10 00:30 +0200
Subject[PATCH 4.2.y-ckt 004/206] drm/i915: Call intel_dp_mst_resume() before resuming displays
Message-ID<rIgCB-4da-5@gated-at.bofh.it>
In reply to#1418691
4.2.8-ckt12 -stable review patch.  If anyone has any objections, please let me know.

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

From: Lyude <cpaul@redhat.com>

commit a16b7658f4e0d4aec9bc3e75a5f0cc3f7a3a0422 upstream.

Since we need MST devices ready before we try to resume displays,
calling this after intel_display_resume() can result in some issues with
various laptop docks where the monitor won't turn back on after
suspending the system.

This order was originally changed in

	commit e7d6f7d70829 ("drm/i915: resume MST after reading back hw state")

In order to fix some unclaimed register errors, however the actual cause
of those has since been fixed.

Signed-off-by: Lyude <cpaul@redhat.com>
[danvet: Resolve conflicts with locking changes.]
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
[ kamal: backport to 4.2-stable: context ]
Signed-off-by: Kamal Mostafa <kamal@canonical.com>
---
 drivers/gpu/drm/i915/i915_drv.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/drivers/gpu/drm/i915/i915_drv.c b/drivers/gpu/drm/i915/i915_drv.c
index 9d42aeb..2188b7f 100644
--- a/drivers/gpu/drm/i915/i915_drv.c
+++ b/drivers/gpu/drm/i915/i915_drv.c
@@ -762,12 +762,12 @@ static int i915_drm_resume(struct drm_device *dev)
 		dev_priv->display.hpd_irq_setup(dev);
 	spin_unlock_irq(&dev_priv->irq_lock);
 
+	intel_dp_mst_resume(dev);
+
 	drm_modeset_lock_all(dev);
 	intel_modeset_setup_hw_state(dev, true);
 	drm_modeset_unlock_all(dev);
 
-	intel_dp_mst_resume(dev);
-
 	/*
 	 * ... but also need to make sure that hotplug processing
 	 * doesn't cause havoc. Like in the driver load code we don't
-- 
2.7.4

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#1418905 — [PATCH 4.2.y-ckt 008/206] xfs: disallow rw remount on fs with unknown ro-compat features

FromKamal Mostafa <kamal@canonical.com>
Date2016-06-10 00:30 +0200
Subject[PATCH 4.2.y-ckt 008/206] xfs: disallow rw remount on fs with unknown ro-compat features
Message-ID<rIgCC-4da-21@gated-at.bofh.it>
In reply to#1418691
4.2.8-ckt12 -stable review patch.  If anyone has any objections, please let me know.

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

From: Eric Sandeen <sandeen@redhat.com>

commit d0a58e833931234c44e515b5b8bede32bd4e6eed upstream.

Today, a kernel which refuses to mount a filesystem read-write
due to unknown ro-compat features can still transition to read-write
via the remount path.  The old kernel is most likely none the wiser,
because it's unaware of the new feature, and isn't using it.  However,
writing to the filesystem may well corrupt metadata related to that
new feature, and moving to a newer kernel which understand the feature
will have problems.

Right now the only ro-compat feature we have is the free inode btree,
which showed up in v3.16.  It would be good to push this back to
all the active stable kernels, I think, so that if anyone is using
newer mkfs (which enables the finobt feature) with older kernel
releases, they'll be protected.

Signed-off-by: Eric Sandeen <sandeen@redhat.com>
Reviewed-by: Bill O'Donnell <billodo@redhat.com>
Reviewed-by: Dave Chinner <dchinner@redhat.com>
Signed-off-by: Dave Chinner <david@fromorbit.com>
Signed-off-by: Kamal Mostafa <kamal@canonical.com>
---
 fs/xfs/xfs_super.c | 10 ++++++++++
 1 file changed, 10 insertions(+)

diff --git a/fs/xfs/xfs_super.c b/fs/xfs/xfs_super.c
index bbd9b1f..a214629 100644
--- a/fs/xfs/xfs_super.c
+++ b/fs/xfs/xfs_super.c
@@ -1240,6 +1240,16 @@ xfs_fs_remount(
 			return -EINVAL;
 		}
 
+		if (XFS_SB_VERSION_NUM(sbp) == XFS_SB_VERSION_5 &&
+		    xfs_sb_has_ro_compat_feature(sbp,
+					XFS_SB_FEAT_RO_COMPAT_UNKNOWN)) {
+			xfs_warn(mp,
+"ro->rw transition prohibited on unknown (0x%x) ro-compat filesystem",
+				(sbp->sb_features_ro_compat &
+					XFS_SB_FEAT_RO_COMPAT_UNKNOWN));
+			return -EINVAL;
+		}
+
 		mp->m_flags &= ~XFS_MOUNT_RDONLY;
 
 		/*
-- 
2.7.4

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#1418909 — [PATCH 4.2.y-ckt 002/206] drm/i915: Fix race condition in intel_dp_destroy_mst_connector()

FromKamal Mostafa <kamal@canonical.com>
Date2016-06-10 00:30 +0200
Subject[PATCH 4.2.y-ckt 002/206] drm/i915: Fix race condition in intel_dp_destroy_mst_connector()
Message-ID<rIgCC-4da-27@gated-at.bofh.it>
In reply to#1418691
4.2.8-ckt12 -stable review patch.  If anyone has any objections, please let me know.

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

From: Lyude <cpaul@redhat.com>

commit 1f7717552ef1306be3b7ed28c66c6eff550e3a23 upstream.

After unplugging a DP MST display from the system, we have to go through
and destroy all of the DRM connectors associated with it since none of
them are valid anymore. Unfortunately, intel_dp_destroy_mst_connector()
doesn't do a good enough job of ensuring that throughout the destruction
process that no modesettings can be done with the connectors. As it is
right now, intel_dp_destroy_mst_connector() works like this:

* Take all modeset locks
* Clear the configuration of the crtc on the connector, if there is one
* Drop all modeset locks, this is required because of circular
  dependency issues that arise with trying to remove the connector from
  sysfs with modeset locks held
* Unregister the connector
* Take all modeset locks, again
* Do the rest of the required cleaning for destroying the connector
* Finally drop all modeset locks for good

This only works sometimes. During the destruction process, it's very
possible that a userspace application will attempt to do a modesetting
using the connector. When we drop the modeset locks, an ioctl handler
such as drm_mode_setcrtc has the oppurtunity to take all of the modeset
locks from us. When this happens, one thing leads to another and
eventually we end up committing a mode with the non-existent connector:

	[drm:intel_dp_link_training_clock_recovery [i915]] *ERROR* failed to enable link training
	[drm:intel_dp_aux_ch] dp_aux_ch timeout status 0x7cf0001f
	[drm:intel_dp_start_link_train [i915]] *ERROR* failed to start channel equalization
	[drm:intel_dp_aux_ch] dp_aux_ch timeout status 0x7cf0001f
	[drm:intel_mst_pre_enable_dp [i915]] *ERROR* failed to allocate vcpi

And in some cases, such as with the T460s using an MST dock, this
results in breaking modesetting and/or panicking the system.

To work around this, we now unregister the connector at the very
beginning of intel_dp_destroy_mst_connector(), grab all the modesetting
locks, and then hold them until we finish the rest of the function.

Signed-off-by: Lyude <cpaul@redhat.com>
Signed-off-by: Rob Clark <rclark@redhat.com>
Reviewed-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Link: http://patchwork.freedesktop.org/patch/msgid/1458155884-13877-1-git-send-email-cpaul@redhat.com
[ kamal: backport to 4.2-stable: context ]
Signed-off-by: Kamal Mostafa <kamal@canonical.com>
---
 drivers/gpu/drm/i915/intel_dp_mst.c | 7 +++----
 1 file changed, 3 insertions(+), 4 deletions(-)

diff --git a/drivers/gpu/drm/i915/intel_dp_mst.c b/drivers/gpu/drm/i915/intel_dp_mst.c
index 8c127201..7feec0f 100644
--- a/drivers/gpu/drm/i915/intel_dp_mst.c
+++ b/drivers/gpu/drm/i915/intel_dp_mst.c
@@ -470,14 +470,13 @@ static void intel_dp_destroy_mst_connector(struct drm_dp_mst_topology_mgr *mgr,
 {
 	struct intel_connector *intel_connector = to_intel_connector(connector);
 	struct drm_device *dev = connector->dev;
-	/* need to nuke the connector */
-	mutex_lock(&dev->mode_config.mutex);
-	intel_connector_dpms(connector, DRM_MODE_DPMS_OFF);
-	mutex_unlock(&dev->mode_config.mutex);
 
 	intel_connector->unregister(intel_connector);
 
+	/* need to nuke the connector */
 	mutex_lock(&dev->mode_config.mutex);
+	intel_connector_dpms(connector, DRM_MODE_DPMS_OFF);
+
 	intel_connector_remove_from_fbdev(intel_connector);
 	drm_connector_cleanup(connector);
 	mutex_unlock(&dev->mode_config.mutex);
-- 
2.7.4

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#1418911 — [PATCH 4.2.y-ckt 011/206] rtlwifi: btcoexist: Implement antenna selection

FromKamal Mostafa <kamal@canonical.com>
Date2016-06-10 00:30 +0200
Subject[PATCH 4.2.y-ckt 011/206] rtlwifi: btcoexist: Implement antenna selection
Message-ID<rIgCC-4da-23@gated-at.bofh.it>
In reply to#1418691
4.2.8-ckt12 -stable review patch.  If anyone has any objections, please let me know.

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

From: Larry Finger <Larry.Finger@lwfinger.net>

commit baa1702290953295e421f0f433e2b1ff4815827c upstream.

The previous patch added an option to rtl8723be to manually select the
antenna for those cases when only a single antenna is present, and the
on-board EEPROM is incorrectly programmed. This patch implements the
necessary changes in the Bluetooth coexistence driver.

Signed-off-by: Larry Finger <Larry.Finger@lwfinger.net>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
[ kamal: backport to 4.2-stable: files moved ]
Signed-off-by: Kamal Mostafa <kamal@canonical.com>
---
 .../wireless/rtlwifi/btcoexist/halbtc8723b2ant.c   |  9 ++++++--
 .../net/wireless/rtlwifi/btcoexist/halbtcoutsrc.c  | 27 +++++++++++++++++++++-
 .../net/wireless/rtlwifi/btcoexist/halbtcoutsrc.h  |  2 +-
 drivers/net/wireless/rtlwifi/btcoexist/rtl_btc.c   |  5 +++-
 4 files changed, 38 insertions(+), 5 deletions(-)

diff --git a/drivers/net/wireless/rtlwifi/btcoexist/halbtc8723b2ant.c b/drivers/net/wireless/rtlwifi/btcoexist/halbtc8723b2ant.c
index f2b9d11..e85f165 100644
--- a/drivers/net/wireless/rtlwifi/btcoexist/halbtc8723b2ant.c
+++ b/drivers/net/wireless/rtlwifi/btcoexist/halbtc8723b2ant.c
@@ -1203,7 +1203,6 @@ static void btc8723b2ant_set_ant_path(struct btc_coexist *btcoexist,
 
 		/* Force GNT_BT to low */
 		btcoexist->btc_write_1byte_bitmask(btcoexist, 0x765, 0x18, 0x0);
-		btcoexist->btc_write_2byte(btcoexist, 0x948, 0x0);
 
 		if (board_info->btdm_ant_pos == BTC_ANTENNA_AT_MAIN_PORT) {
 			/* tell firmware "no antenna inverse" */
@@ -1211,19 +1210,25 @@ static void btc8723b2ant_set_ant_path(struct btc_coexist *btcoexist,
 			h2c_parameter[1] = 1;  /* ext switch type */
 			btcoexist->btc_fill_h2c(btcoexist, 0x65, 2,
 						h2c_parameter);
+			btcoexist->btc_write_2byte(btcoexist, 0x948, 0x0);
 		} else {
 			/* tell firmware "antenna inverse" */
 			h2c_parameter[0] = 1;
 			h2c_parameter[1] = 1;  /* ext switch type */
 			btcoexist->btc_fill_h2c(btcoexist, 0x65, 2,
 						h2c_parameter);
+			btcoexist->btc_write_2byte(btcoexist, 0x948, 0x280);
 		}
 	}
 
 	/* ext switch setting */
 	if (use_ext_switch) {
 		/* fixed internal switch S1->WiFi, S0->BT */
-		btcoexist->btc_write_2byte(btcoexist, 0x948, 0x0);
+		if (board_info->btdm_ant_pos == BTC_ANTENNA_AT_MAIN_PORT)
+			btcoexist->btc_write_2byte(btcoexist, 0x948, 0x0);
+		else
+			btcoexist->btc_write_2byte(btcoexist, 0x948, 0x280);
+
 		switch (antpos_type) {
 		case BTC_ANT_WIFI_AT_MAIN:
 			/* ext switch main at wifi */
diff --git a/drivers/net/wireless/rtlwifi/btcoexist/halbtcoutsrc.c b/drivers/net/wireless/rtlwifi/btcoexist/halbtcoutsrc.c
index b2791c8..babd149 100644
--- a/drivers/net/wireless/rtlwifi/btcoexist/halbtcoutsrc.c
+++ b/drivers/net/wireless/rtlwifi/btcoexist/halbtcoutsrc.c
@@ -965,13 +965,38 @@ void exhalbtc_set_chip_type(u8 chip_type)
 	}
 }
 
-void exhalbtc_set_ant_num(u8 type, u8 ant_num)
+void exhalbtc_set_ant_num(struct rtl_priv *rtlpriv, u8 type, u8 ant_num)
 {
 	if (BT_COEX_ANT_TYPE_PG == type) {
 		gl_bt_coexist.board_info.pg_ant_num = ant_num;
 		gl_bt_coexist.board_info.btdm_ant_num = ant_num;
+		/* The antenna position:
+		 * Main (default) or Aux for pgAntNum=2 && btdmAntNum =1.
+		 * The antenna position should be determined by
+		 * auto-detect mechanism.
+		 * The following is assumed to main,
+		 * and those must be modified
+		 * if y auto-detect mechanism is ready
+		 */
+		if ((gl_bt_coexist.board_info.pg_ant_num == 2) &&
+		    (gl_bt_coexist.board_info.btdm_ant_num == 1))
+			gl_bt_coexist.board_info.btdm_ant_pos =
+						       BTC_ANTENNA_AT_MAIN_PORT;
+		else
+			gl_bt_coexist.board_info.btdm_ant_pos =
+						       BTC_ANTENNA_AT_MAIN_PORT;
 	} else if (BT_COEX_ANT_TYPE_ANTDIV == type) {
 		gl_bt_coexist.board_info.btdm_ant_num = ant_num;
+		gl_bt_coexist.board_info.btdm_ant_pos =
+						       BTC_ANTENNA_AT_MAIN_PORT;
+	} else if (type == BT_COEX_ANT_TYPE_DETECTED) {
+		gl_bt_coexist.board_info.btdm_ant_num = ant_num;
+		if (rtlpriv->cfg->mod_params->ant_sel == 1)
+			gl_bt_coexist.board_info.btdm_ant_pos =
+				BTC_ANTENNA_AT_AUX_PORT;
+		else
+			gl_bt_coexist.board_info.btdm_ant_pos =
+				BTC_ANTENNA_AT_MAIN_PORT;
 	}
 }
 
diff --git a/drivers/net/wireless/rtlwifi/btcoexist/halbtcoutsrc.h b/drivers/net/wireless/rtlwifi/btcoexist/halbtcoutsrc.h
index 0a903ea..f41ca57 100644
--- a/drivers/net/wireless/rtlwifi/btcoexist/halbtcoutsrc.h
+++ b/drivers/net/wireless/rtlwifi/btcoexist/halbtcoutsrc.h
@@ -535,7 +535,7 @@ void exhalbtc_set_bt_patch_version(u16 bt_hci_version, u16 bt_patch_version);
 void exhalbtc_update_min_bt_rssi(char bt_rssi);
 void exhalbtc_set_bt_exist(bool bt_exist);
 void exhalbtc_set_chip_type(u8 chip_type);
-void exhalbtc_set_ant_num(u8 type, u8 ant_num);
+void exhalbtc_set_ant_num(struct rtl_priv *rtlpriv, u8 type, u8 ant_num);
 void exhalbtc_display_bt_coex_info(struct btc_coexist *btcoexist);
 void exhalbtc_signal_compensation(struct btc_coexist *btcoexist,
 				  u8 *rssi_wifi, u8 *rssi_bt);
diff --git a/drivers/net/wireless/rtlwifi/btcoexist/rtl_btc.c b/drivers/net/wireless/rtlwifi/btcoexist/rtl_btc.c
index b9b0cb7..d3fd921 100644
--- a/drivers/net/wireless/rtlwifi/btcoexist/rtl_btc.c
+++ b/drivers/net/wireless/rtlwifi/btcoexist/rtl_btc.c
@@ -72,7 +72,10 @@ void rtl_btc_init_hal_vars(struct rtl_priv *rtlpriv)
 		 __func__, bt_type);
 	exhalbtc_set_chip_type(bt_type);
 
-	exhalbtc_set_ant_num(BT_COEX_ANT_TYPE_PG, ant_num);
+	if (rtlpriv->cfg->mod_params->ant_sel == 1)
+		exhalbtc_set_ant_num(rtlpriv, BT_COEX_ANT_TYPE_DETECTED, 1);
+	else
+		exhalbtc_set_ant_num(rtlpriv, BT_COEX_ANT_TYPE_PG, ant_num);
 }
 
 void rtl_btc_init_hw_config(struct rtl_priv *rtlpriv)
-- 
2.7.4

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#1418912 — [PATCH 4.2.y-ckt 006/206] drm/i915: Exit cherryview_irq_handler() after one pass

FromKamal Mostafa <kamal@canonical.com>
Date2016-06-10 00:30 +0200
Subject[PATCH 4.2.y-ckt 006/206] drm/i915: Exit cherryview_irq_handler() after one pass
Message-ID<rIgCC-4da-25@gated-at.bofh.it>
In reply to#1418691
4.2.8-ckt12 -stable review patch.  If anyone has any objections, please let me know.

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

From: Chris Wilson <chris@chris-wilson.co.uk>

commit 579de73b048a0a4c66c25a033ac76a2836e0cf73 upstream.

This effectively reverts

commit 8e5fd599eb219f1054e39b40d18b217af669eea9
Author: Ville Syrjälä <ville.syrjala@linux.intel.com>
Date:   Wed Apr 9 13:28:50 2014 +0300

    drm/i915/chv: Make CHV irq handler loop until all interrupts are consumed

as under continuous execlists load we can saturate the IRQ handler,
destablising the tsc clock and triggering the NMI watchdog to declare a hung
CPU.

[  552.756051] clocksource: timekeeping watchdog on CPU0: Marking clocksource 'tsc' as unstable because the skew is too large:
[  552.756080] clocksource:                       'refined-jiffies' wd_now: 10003b480 wd_last: 10003b28c mask: ffffffff
[  552.756091] clocksource:                       'tsc' cs_now: d55d31aa50 cs_last: d17446166c mask: ffffffffffffffff
[  552.756210] clocksource: Switched to clocksource refined-jiffies
[  575.217870] NMI watchdog: Watchdog detected hard LOCKUP on cpu 1
[  575.217893] CPU: 1 PID: 0 Comm: swapper/1 Not tainted 4.5.0-rc7+ #18
[  575.217905] Hardware name:                  /NUC5CPYB, BIOS PYBSWCEL.86A.0027.2015.0507.1758 05/07/2015
[  575.217915]  0000000000000000 ffff88027fd05bc0 ffffffff81288c6d 0000000000000000
[  575.217935]  0000000000000001 ffff88027fd05be0 ffffffff810e72d1 0000000000000000
[  575.217951]  ffff88027fd05c80 ffff88027fd05c20 ffffffff81114b60 0000000181015f1e
[  575.217967] Call Trace:
[  575.217973]  <NMI>  [<ffffffff81288c6d>] dump_stack+0x4f/0x72
[  575.217994]  [<ffffffff810e72d1>] watchdog_overflow_callback+0x151/0x160
[  575.218003]  [<ffffffff81114b60>] __perf_event_overflow+0xa0/0x1e0
[  575.218016]  [<ffffffff811154c4>] perf_event_overflow+0x14/0x20
[  575.218028]  [<ffffffff8101d2ca>] intel_pmu_handle_irq+0x1da/0x460
[  575.218042]  [<ffffffff814a8aae>] ? poll_idle+0x3e/0x70
[  575.218052]  [<ffffffff814a8aae>] ? poll_idle+0x3e/0x70
[  575.218064]  [<ffffffff81014ae8>] perf_event_nmi_handler+0x28/0x50
[  575.218075]  [<ffffffff81007540>] nmi_handle+0x60/0x130
[  575.218086]  [<ffffffff814a8aae>] ? poll_idle+0x3e/0x70
[  575.218096]  [<ffffffff810079c0>] do_nmi+0x140/0x470
[  575.218108]  [<ffffffff81559ec7>] end_repeat_nmi+0x1a/0x1e
[  575.218119]  [<ffffffff814a8aae>] ? poll_idle+0x3e/0x70
[  575.218129]  [<ffffffff814a8aae>] ? poll_idle+0x3e/0x70
[  575.218139]  [<ffffffff814a8aae>] ? poll_idle+0x3e/0x70
[  575.218148]  <<EOE>>  [<ffffffff814a8353>] cpuidle_enter_state+0xf3/0x2f0
[  575.218164]  [<ffffffff814a8587>] cpuidle_enter+0x17/0x20
[  575.218175]  [<ffffffff810aaa3a>] call_cpuidle+0x2a/0x40
[  575.218185]  [<ffffffff810aade3>] cpu_startup_entry+0x273/0x330
[  575.218196]  [<ffffffff81033a1e>] start_secondary+0x10e/0x130

However, not servicing all available IIR within the handler does hurt the
throughput of pathological nop execbuf by about 20%, with a similar effect
upon the dispatch latency of a series of execbuf.

v2: use do {} while(0) for a smaller patch, and easier to revert again

I have reasonable confidence that we do not miss GT interrupts (as
execlists provides a stress case with a failure mechanism easily
detected by igt), however I have less confidence about all the other
sources of interrupts and worry that may lose a display hotplug
interrupt, for example.

Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=93467
Testcase: igt/gem_exec_nop/basic # requires NMI watchdog
Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Cc: Ville Syrjälä <ville.syrjala@linux.intel.com>
Cc: Antti Koskipää <antti.koskipaa@linux.intel.com>
Cc: Tvrtko Ursulin <tvrtko.ursulin@intel.com>
Reviewed-by: Tvrtko Ursulin <tvrtko.ursulin@intel.com>
Reviewed-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Link: http://patchwork.freedesktop.org/patch/msgid/1457946117-6714-1-git-send-email-chris@chris-wilson.co.uk
Signed-off-by: Kamal Mostafa <kamal@canonical.com>
---
 drivers/gpu/drm/i915/i915_irq.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/drivers/gpu/drm/i915/i915_irq.c b/drivers/gpu/drm/i915/i915_irq.c
index 6a51bc6..6f453fe 100644
--- a/drivers/gpu/drm/i915/i915_irq.c
+++ b/drivers/gpu/drm/i915/i915_irq.c
@@ -1837,7 +1837,7 @@ static irqreturn_t cherryview_irq_handler(int irq, void *arg)
 	if (!intel_irqs_enabled(dev_priv))
 		return IRQ_NONE;
 
-	for (;;) {
+	do {
 		master_ctl = I915_READ(GEN8_MASTER_IRQ) & ~GEN8_MASTER_IRQ_CONTROL;
 		iir = I915_READ(VLV_IIR);
 
@@ -1865,7 +1865,7 @@ static irqreturn_t cherryview_irq_handler(int irq, void *arg)
 
 		I915_WRITE(GEN8_MASTER_IRQ, DE_MASTER_IRQ_CONTROL);
 		POSTING_READ(GEN8_MASTER_IRQ);
-	}
+	} while (0);
 
 	return ret;
 }
-- 
2.7.4

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#1419130 — RE: [PATCH 4.2.y-ckt 006/206] drm/i915: Exit cherryview_irq_handler() after one pass

From"Ursulin, Tvrtko" <tvrtko.ursulin@intel.com>
Date2016-06-10 10:50 +0200
SubjectRE: [PATCH 4.2.y-ckt 006/206] drm/i915: Exit cherryview_irq_handler() after one pass
Message-ID<rIqiB-2jO-21@gated-at.bofh.it>
In reply to#1418912
Hi,

Should not be cherry picked to stable, it needs many more patches to make it work or otherwise breaks the platform.

Regards,

Tvrtko

> -----Original Message-----
> From: Kamal Mostafa [mailto:kamal@canonical.com]
> Sent: Thursday, June 09, 2016 10:14 PM
> To: linux-kernel@vger.kernel.org; stable@vger.kernel.org; kernel-
> team@lists.ubuntu.com
> Cc: Chris Wilson; Ville Syrjälä; Antti Koskipää; Ursulin, Tvrtko; Kamal Mostafa
> Subject: [PATCH 4.2.y-ckt 006/206] drm/i915: Exit cherryview_irq_handler()
> after one pass
> 
> 4.2.8-ckt12 -stable review patch.  If anyone has any objections, please let me
> know.
> 
> ---8<------------------------------------------------------------
> 
> From: Chris Wilson <chris@chris-wilson.co.uk>
> 
> commit 579de73b048a0a4c66c25a033ac76a2836e0cf73 upstream.
> 
> This effectively reverts
> 
> commit 8e5fd599eb219f1054e39b40d18b217af669eea9
> Author: Ville Syrjälä <ville.syrjala@linux.intel.com>
> Date:   Wed Apr 9 13:28:50 2014 +0300
> 
>     drm/i915/chv: Make CHV irq handler loop until all interrupts are consumed
> 
> as under continuous execlists load we can saturate the IRQ handler,
> destablising the tsc clock and triggering the NMI watchdog to declare a hung
> CPU.
> 
> [  552.756051] clocksource: timekeeping watchdog on CPU0: Marking
> clocksource 'tsc' as unstable because the skew is too large:
> [  552.756080] clocksource:                       'refined-jiffies' wd_now: 10003b480
> wd_last: 10003b28c mask: ffffffff
> [  552.756091] clocksource:                       'tsc' cs_now: d55d31aa50 cs_last:
> d17446166c mask: ffffffffffffffff
> [  552.756210] clocksource: Switched to clocksource refined-jiffies
> [  575.217870] NMI watchdog: Watchdog detected hard LOCKUP on cpu 1
> [  575.217893] CPU: 1 PID: 0 Comm: swapper/1 Not tainted 4.5.0-rc7+ #18
> [  575.217905] Hardware name:                  /NUC5CPYB, BIOS
> PYBSWCEL.86A.0027.2015.0507.1758 05/07/2015
> [  575.217915]  0000000000000000 ffff88027fd05bc0 ffffffff81288c6d
> 0000000000000000
> [  575.217935]  0000000000000001 ffff88027fd05be0 ffffffff810e72d1
> 0000000000000000
> [  575.217951]  ffff88027fd05c80 ffff88027fd05c20 ffffffff81114b60
> 0000000181015f1e
> [  575.217967] Call Trace:
> [  575.217973]  <NMI>  [<ffffffff81288c6d>] dump_stack+0x4f/0x72
> [  575.217994]  [<ffffffff810e72d1>]
> watchdog_overflow_callback+0x151/0x160
> [  575.218003]  [<ffffffff81114b60>] __perf_event_overflow+0xa0/0x1e0
> [  575.218016]  [<ffffffff811154c4>] perf_event_overflow+0x14/0x20
> [  575.218028]  [<ffffffff8101d2ca>] intel_pmu_handle_irq+0x1da/0x460
> [  575.218042]  [<ffffffff814a8aae>] ? poll_idle+0x3e/0x70
> [  575.218052]  [<ffffffff814a8aae>] ? poll_idle+0x3e/0x70
> [  575.218064]  [<ffffffff81014ae8>] perf_event_nmi_handler+0x28/0x50
> [  575.218075]  [<ffffffff81007540>] nmi_handle+0x60/0x130
> [  575.218086]  [<ffffffff814a8aae>] ? poll_idle+0x3e/0x70
> [  575.218096]  [<ffffffff810079c0>] do_nmi+0x140/0x470
> [  575.218108]  [<ffffffff81559ec7>] end_repeat_nmi+0x1a/0x1e
> [  575.218119]  [<ffffffff814a8aae>] ? poll_idle+0x3e/0x70
> [  575.218129]  [<ffffffff814a8aae>] ? poll_idle+0x3e/0x70
> [  575.218139]  [<ffffffff814a8aae>] ? poll_idle+0x3e/0x70
> [  575.218148]  <<EOE>>  [<ffffffff814a8353>]
> cpuidle_enter_state+0xf3/0x2f0
> [  575.218164]  [<ffffffff814a8587>] cpuidle_enter+0x17/0x20
> [  575.218175]  [<ffffffff810aaa3a>] call_cpuidle+0x2a/0x40
> [  575.218185]  [<ffffffff810aade3>] cpu_startup_entry+0x273/0x330
> [  575.218196]  [<ffffffff81033a1e>] start_secondary+0x10e/0x130
> 
> However, not servicing all available IIR within the handler does hurt the
> throughput of pathological nop execbuf by about 20%, with a similar effect
> upon the dispatch latency of a series of execbuf.
> 
> v2: use do {} while(0) for a smaller patch, and easier to revert again
> 
> I have reasonable confidence that we do not miss GT interrupts (as
> execlists provides a stress case with a failure mechanism easily
> detected by igt), however I have less confidence about all the other
> sources of interrupts and worry that may lose a display hotplug
> interrupt, for example.
> 
> Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=93467
> Testcase: igt/gem_exec_nop/basic # requires NMI watchdog
> Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
> Cc: Ville Syrjälä <ville.syrjala@linux.intel.com>
> Cc: Antti Koskipää <antti.koskipaa@linux.intel.com>
> Cc: Tvrtko Ursulin <tvrtko.ursulin@intel.com>
> Reviewed-by: Tvrtko Ursulin <tvrtko.ursulin@intel.com>
> Reviewed-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
> Link: http://patchwork.freedesktop.org/patch/msgid/1457946117-6714-1-git-
> send-email-chris@chris-wilson.co.uk
> Signed-off-by: Kamal Mostafa <kamal@canonical.com>
> ---
>  drivers/gpu/drm/i915/i915_irq.c | 4 ++--
>  1 file changed, 2 insertions(+), 2 deletions(-)
> 
> diff --git a/drivers/gpu/drm/i915/i915_irq.c
> b/drivers/gpu/drm/i915/i915_irq.c
> index 6a51bc6..6f453fe 100644
> --- a/drivers/gpu/drm/i915/i915_irq.c
> +++ b/drivers/gpu/drm/i915/i915_irq.c
> @@ -1837,7 +1837,7 @@ static irqreturn_t cherryview_irq_handler(int irq,
> void *arg)
>  	if (!intel_irqs_enabled(dev_priv))
>  		return IRQ_NONE;
> 
> -	for (;;) {
> +	do {
>  		master_ctl = I915_READ(GEN8_MASTER_IRQ) &
> ~GEN8_MASTER_IRQ_CONTROL;
>  		iir = I915_READ(VLV_IIR);
> 
> @@ -1865,7 +1865,7 @@ static irqreturn_t cherryview_irq_handler(int irq,
> void *arg)
> 
>  		I915_WRITE(GEN8_MASTER_IRQ,
> DE_MASTER_IRQ_CONTROL);
>  		POSTING_READ(GEN8_MASTER_IRQ);
> -	}
> +	} while (0);
> 
>  	return ret;
>  }
> --
> 2.7.4

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