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[3.19.y-ckt stable] Linux 3.19.8-ckt12 stable review

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  [3.19.y-ckt stable] Linux 3.19.8-ckt12 stable review Kamal Mostafa <kamal@canonical.com> - 2015-12-16 18:40 +0100
    [PATCH 3.19.y-ckt 122/128] net/neighbour: fix crash at dumping device-agnostic proxy entries Kamal Mostafa <kamal@canonical.com> - 2015-12-16 18:50 +0100
    [PATCH 3.19.y-ckt 116/128] remoteproc: avoid stack overflow in debugfs file Kamal Mostafa <kamal@canonical.com> - 2015-12-16 18:50 +0100
    [PATCH 3.19.y-ckt 119/128] net: mvneta: add configuration for MBUS windows access protection Kamal Mostafa <kamal@canonical.com> - 2015-12-16 18:50 +0100
    [PATCH 3.19.y-ckt 094/128] mac80211: mesh: fix call_rcu() usage Kamal Mostafa <kamal@canonical.com> - 2015-12-16 18:50 +0100
    [PATCH 3.19.y-ckt 113/128] tcp: fix potential huge kmalloc() calls in TCP_REPAIR Kamal Mostafa <kamal@canonical.com> - 2015-12-16 18:50 +0100
    [PATCH 3.19.y-ckt 123/128] sched/core: Remove false-positive warning from wake_up_process() Kamal Mostafa <kamal@canonical.com> - 2015-12-16 18:50 +0100
    [PATCH 3.19.y-ckt 121/128] net: mvneta: fix bit assignment for RX packet irq enable Kamal Mostafa <kamal@canonical.com> - 2015-12-16 18:50 +0100
    [PATCH 3.19.y-ckt 118/128] bpf, array: fix heap out-of-bounds access when updating elements Kamal Mostafa <kamal@canonical.com> - 2015-12-16 18:50 +0100
    [PATCH 3.19.y-ckt 127/128] ipv4: igmp: Allow removing groups from a removed interface Kamal Mostafa <kamal@canonical.com> - 2015-12-16 18:50 +0100
    [PATCH 3.19.y-ckt 090/128] Bluetooth: Fix l2cap_chan leak in SMP Kamal Mostafa <kamal@canonical.com> - 2015-12-16 18:50 +0100
    [PATCH 3.19.y-ckt 095/128] can: sja1000: clear interrupts on start Kamal Mostafa <kamal@canonical.com> - 2015-12-16 18:50 +0100
    [PATCH 3.19.y-ckt 109/128] x86/signal: Fix restart_syscall number for x32 tasks Kamal Mostafa <kamal@canonical.com> - 2015-12-16 18:50 +0100
    [PATCH 3.19.y-ckt 115/128] isdn: Partially revert debug format string usage clean up Kamal Mostafa <kamal@canonical.com> - 2015-12-16 18:50 +0100
    [PATCH 3.19.y-ckt 126/128] broadcom: fix PHY_ID_BCM5481 entry in the id table Kamal Mostafa <kamal@canonical.com> - 2015-12-16 18:50 +0100
    [PATCH 3.19.y-ckt 124/128] net: ip6mr: fix static mfc/dev leaks on table destruction Kamal Mostafa <kamal@canonical.com> - 2015-12-16 18:50 +0100
    [PATCH 3.19.y-ckt 128/128] sched/wait: Fix signal handling in bit wait helpers Kamal Mostafa <kamal@canonical.com> - 2015-12-16 18:50 +0100
      Re: [PATCH 3.19.y-ckt 128/128] sched/wait: Fix signal handling in  bit wait helpers Oleg Nesterov <oleg@redhat.com> - 2015-12-16 19:00 +0100
        Re: [PATCH 3.19.y-ckt 128/128] sched/wait: Fix signal handling in  bit wait helpers Kamal Mostafa <kamal@canonical.com> - 2015-12-16 19:10 +0100
    [PATCH 3.19.y-ckt 003/128] iio:ad5064: Make sure ad5064_i2c_write() returns 0 on success Kamal Mostafa <kamal@canonical.com> - 2015-12-16 18:50 +0100
    [PATCH 3.19.y-ckt 111/128] SUNRPC: Fix callback channel Kamal Mostafa <kamal@canonical.com> - 2015-12-16 18:50 +0100
    [PATCH 3.19.y-ckt 117/128] drm/rockchip: unset pgoff when mmap'ing gems Kamal Mostafa <kamal@canonical.com> - 2015-12-16 18:50 +0100
    [PATCH 3.19.y-ckt 108/128] x86/mpx: Fix instruction decoder condition Kamal Mostafa <kamal@canonical.com> - 2015-12-16 18:50 +0100
    [PATCH 3.19.y-ckt 114/128] drm: imx: convert to drm_crtc_send_vblank_event() Kamal Mostafa <kamal@canonical.com> - 2015-12-16 18:50 +0100
    [PATCH 3.19.y-ckt 105/128] sched/core: Clear the root_domain cpumasks in init_rootdomain() Kamal Mostafa <kamal@canonical.com> - 2015-12-16 18:50 +0100
    [PATCH 3.19.y-ckt 077/128] PCI: Prevent out of bounds access in numa_node override Kamal Mostafa <kamal@canonical.com> - 2015-12-16 18:50 +0100
    [PATCH 3.19.y-ckt 112/128] tcp: md5: fix lockdep annotation Kamal Mostafa <kamal@canonical.com> - 2015-12-16 18:50 +0100
    [PATCH 3.19.y-ckt 125/128] unix: avoid use-after-free in ep_remove_wait_queue Kamal Mostafa <kamal@canonical.com> - 2015-12-16 18:50 +0100
    [PATCH 3.19.y-ckt 107/128] ARM/arm64: KVM: correct PTE uncachedness check Kamal Mostafa <kamal@canonical.com> - 2015-12-16 18:50 +0100
    [PATCH 3.19.y-ckt 104/128] drm: Fix an unwanted master inheritance v2 Kamal Mostafa <kamal@canonical.com> - 2015-12-16 18:50 +0100
    [PATCH 3.19.y-ckt 120/128] net: mvneta: fix bit assignment in MVNETA_RXQ_CONFIG_REG Kamal Mostafa <kamal@canonical.com> - 2015-12-16 18:50 +0100
    [PATCH 3.19.y-ckt 110/128] ovl: fix permission checking for setattr Kamal Mostafa <kamal@canonical.com> - 2015-12-16 18:50 +0100
    [PATCH 3.19.y-ckt 088/128] ARM: dts: Kirkwood: Fix QNAP TS219 power-off Kamal Mostafa <kamal@canonical.com> - 2015-12-16 18:50 +0100
    [PATCH 3.19.y-ckt 025/128] usb: chipidea: debug: disable usb irq while role switch Kamal Mostafa <kamal@canonical.com> - 2015-12-16 18:50 +0100
    [PATCH 3.19.y-ckt 106/128] rbd: don't put snap_context twice in rbd_queue_workfn() Kamal Mostafa <kamal@canonical.com> - 2015-12-16 19:00 +0100
    [PATCH 3.19.y-ckt 102/128] mac80211: do not actively scan DFS channels Kamal Mostafa <kamal@canonical.com> - 2015-12-16 19:00 +0100
    [PATCH 3.19.y-ckt 085/128] iscsi-target: Fix rx_login_comp hang after login failure Kamal Mostafa <kamal@canonical.com> - 2015-12-16 19:00 +0100
    [PATCH 3.19.y-ckt 103/128] PM / Domains: Fix bad of_node_put() in failure paths of genpd_dev_pm_attach() Kamal Mostafa <kamal@canonical.com> - 2015-12-16 19:00 +0100
    [PATCH 3.19.y-ckt 100/128] Fix a memory leak in scsi_host_dev_release() Kamal Mostafa <kamal@canonical.com> - 2015-12-16 19:00 +0100
    [PATCH 3.19.y-ckt 091/128] crypto: nx - Fix timing leak in GCM and CCM decryption Kamal Mostafa <kamal@canonical.com> - 2015-12-16 19:00 +0100
    [PATCH 3.19.y-ckt 009/128] x86/mpx: Do proper get_user() when running 32-bit binaries on 64-bit kernels Kamal Mostafa <kamal@canonical.com> - 2015-12-16 19:00 +0100
    [PATCH 3.19.y-ckt 089/128] ath10k: fix invalid NSS for 4x4 devices Kamal Mostafa <kamal@canonical.com> - 2015-12-16 19:00 +0100
    [PATCH 3.19.y-ckt 098/128] drm/i915: Don't override output type for DDI HDMI Kamal Mostafa <kamal@canonical.com> - 2015-12-16 19:00 +0100
    [PATCH 3.19.y-ckt 093/128] ASoC: wm8962: correct addresses for HPF_C_0/1 Kamal Mostafa <kamal@canonical.com> - 2015-12-16 19:00 +0100
    [PATCH 3.19.y-ckt 042/128] FS-Cache: Add missing initialization of ret in cachefiles_write_page() Kamal Mostafa <kamal@canonical.com> - 2015-12-16 19:00 +0100
    [PATCH 3.19.y-ckt 087/128] target: fix COMPARE_AND_WRITE non zero SGL offset data corruption Kamal Mostafa <kamal@canonical.com> - 2015-12-16 19:00 +0100
    [PATCH 3.19.y-ckt 097/128] RDS: fix race condition when sending a message on unbound socket Kamal Mostafa <kamal@canonical.com> - 2015-12-16 19:00 +0100
    [PATCH 3.19.y-ckt 084/128] xen/gntdev: Grant maps should not be subject to NUMA balancing Kamal Mostafa <kamal@canonical.com> - 2015-12-16 19:00 +0100
    [PATCH 3.19.y-ckt 099/128] block: Always check queue limits for cloned requests Kamal Mostafa <kamal@canonical.com> - 2015-12-16 19:00 +0100
    [PATCH 3.19.y-ckt 086/128] target: Fix race for SCF_COMPARE_AND_WRITE_POST checking Kamal Mostafa <kamal@canonical.com> - 2015-12-16 19:00 +0100
    [PATCH 3.19.y-ckt 092/128] crypto: talitos - Fix timing leak in ESP ICV verification Kamal Mostafa <kamal@canonical.com> - 2015-12-16 19:00 +0100
    [PATCH 3.19.y-ckt 101/128] wan/x25: Fix use-after-free in x25_asy_open_tty() Kamal Mostafa <kamal@canonical.com> - 2015-12-16 19:00 +0100
    [PATCH 3.19.y-ckt 010/128] x86/fpu: Fix 32-bit signal frame handling Kamal Mostafa <kamal@canonical.com> - 2015-12-16 19:00 +0100
    [PATCH 3.19.y-ckt 080/128] ARM: dove: Fix legacy get_irqnr_and_base Kamal Mostafa <kamal@canonical.com> - 2015-12-16 19:00 +0100
    [PATCH 3.19.y-ckt 083/128] nfs: if we have no valid attrs, then don't declare the attribute cache valid Kamal Mostafa <kamal@canonical.com> - 2015-12-16 19:00 +0100
    [PATCH 3.19.y-ckt 096/128] ring-buffer: Update read stamp with first real commit on page Kamal Mostafa <kamal@canonical.com> - 2015-12-16 19:00 +0100
    [PATCH 3.19.y-ckt 064/128] powerpc/tm: Block signal return setting invalid MSR state Kamal Mostafa <kamal@canonical.com> - 2015-12-16 19:10 +0100
    [PATCH 3.19.y-ckt 079/128] btrfs: fix signed overflows in btrfs_sync_file Kamal Mostafa <kamal@canonical.com> - 2015-12-16 19:10 +0100
    [PATCH 3.19.y-ckt 008/128] x86/mpx: Introduce new 'directory entry' to 'addr' helper function Kamal Mostafa <kamal@canonical.com> - 2015-12-16 19:10 +0100
    [PATCH 3.19.y-ckt 078/128] ALSA: hda - Fix noise on Gigabyte Z170X mobo Kamal Mostafa <kamal@canonical.com> - 2015-12-16 19:10 +0100
    [PATCH 3.19.y-ckt 076/128] drm/radeon: make rv770_set_sw_state failures non-fatal Kamal Mostafa <kamal@canonical.com> - 2015-12-16 19:10 +0100
    [PATCH 3.19.y-ckt 065/128] powerpc/tm: Check for already reclaimed tasks Kamal Mostafa <kamal@canonical.com> - 2015-12-16 19:10 +0100
    [PATCH 3.19.y-ckt 031/128] usblp: do not set TASK_INTERRUPTIBLE before lock Kamal Mostafa <kamal@canonical.com> - 2015-12-16 19:10 +0100
    [PATCH 3.19.y-ckt 066/128] ARC: dw2 unwind: Remove falllback linear search thru FDE entries Kamal Mostafa <kamal@canonical.com> - 2015-12-16 19:10 +0100
    [PATCH 3.19.y-ckt 033/128] kernel/signal.c: unexport sigsuspend() Kamal Mostafa <kamal@canonical.com> - 2015-12-16 19:10 +0100
    [PATCH 3.19.y-ckt 073/128] ARM: dts: vfxxx: Fix dspi[01] spi-num-chipselects. Kamal Mostafa <kamal@canonical.com> - 2015-12-16 19:10 +0100
    [PATCH 3.19.y-ckt 057/128] MIPS: KVM: Uninit VCPU in vcpu_create error path Kamal Mostafa <kamal@canonical.com> - 2015-12-16 19:10 +0100
    [PATCH 3.19.y-ckt 074/128] ARM/arm64: KVM: test properly for a PTE's uncachedness Kamal Mostafa <kamal@canonical.com> - 2015-12-16 19:10 +0100
    [PATCH 3.19.y-ckt 056/128] MIPS: KVM: Fix CACHE immediate offset sign extension Kamal Mostafa <kamal@canonical.com> - 2015-12-16 19:10 +0100
    [PATCH 3.19.y-ckt 075/128] arm64: KVM: Fix AArch32 to AArch64 register mapping Kamal Mostafa <kamal@canonical.com> - 2015-12-16 19:10 +0100
    [PATCH 3.19.y-ckt 067/128] fix sysvfs symlinks Kamal Mostafa <kamal@canonical.com> - 2015-12-16 19:10 +0100
    [PATCH 3.19.y-ckt 070/128] nfs4: start callback_ident at idr 1 Kamal Mostafa <kamal@canonical.com> - 2015-12-16 19:10 +0100
    [PATCH 3.19.y-ckt 023/128] arm64: kernel: pause/unpause function graph tracer in cpu_suspend() Kamal Mostafa <kamal@canonical.com> - 2015-12-16 19:10 +0100
    [PATCH 3.19.y-ckt 068/128] vfs: Make sendfile(2) killable even better Kamal Mostafa <kamal@canonical.com> - 2015-12-16 19:10 +0100
    [PATCH 3.19.y-ckt 045/128] perf symbols: Fix dso lookup by long name and missing buildids Kamal Mostafa <kamal@canonical.com> - 2015-12-16 19:10 +0100
    [PATCH 3.19.y-ckt 063/128] ALSA: hda - Apply HP headphone fixups more generically Kamal Mostafa <kamal@canonical.com> - 2015-12-16 19:10 +0100
    [PATCH 3.19.y-ckt 062/128] mac: validate mac_partition is within sector Kamal Mostafa <kamal@canonical.com> - 2015-12-16 19:10 +0100
    [PATCH 3.19.y-ckt 006/128] x86/mpx: Add temporary variable to reduce masking Kamal Mostafa <kamal@canonical.com> - 2015-12-16 19:10 +0100
    [PATCH 3.19.y-ckt 071/128] nfs4: limit callback decoding to received bytes Kamal Mostafa <kamal@canonical.com> - 2015-12-16 19:10 +0100
    [PATCH 3.19.y-ckt 055/128] MIPS: KVM: Fix ASID restoration logic Kamal Mostafa <kamal@canonical.com> - 2015-12-16 19:10 +0100
    [PATCH 3.19.y-ckt 007/128] x86: Make is_64bit_mm() widely available Kamal Mostafa <kamal@canonical.com> - 2015-12-16 19:10 +0100
    [PATCH 3.19.y-ckt 072/128] ALSA: hda - Fix headphone noise after Dell XPS 13 resume back from S3 Kamal Mostafa <kamal@canonical.com> - 2015-12-16 19:10 +0100
    [PATCH 3.19.y-ckt 069/128] vfs: Avoid softlockups with sendfile(2) Kamal Mostafa <kamal@canonical.com> - 2015-12-16 19:10 +0100
    [PATCH 3.19.y-ckt 082/128] drm/radeon: make some dpm errors debug only Kamal Mostafa <kamal@canonical.com> - 2015-12-16 19:10 +0100
    [PATCH 3.19.y-ckt 032/128] fat: fix fake_offset handling on error path Kamal Mostafa <kamal@canonical.com> - 2015-12-16 19:10 +0100
    [PATCH 3.19.y-ckt 081/128] ARM: orion5x: Fix legacy get_irqnr_and_base Kamal Mostafa <kamal@canonical.com> - 2015-12-16 19:10 +0100
    [PATCH 3.19.y-ckt 035/128] tty: Fix tty_send_xchar() lock order inversion Kamal Mostafa <kamal@canonical.com> - 2015-12-16 19:10 +0100
    [PATCH 3.19.y-ckt 060/128] KVM: s390: fix wrong lookup of VCPUs by array index Kamal Mostafa <kamal@canonical.com> - 2015-12-16 19:10 +0100
    [PATCH 3.19.y-ckt 030/128] USB: option: add XS Stick W100-2 from 4G Systems Kamal Mostafa <kamal@canonical.com> - 2015-12-16 19:20 +0100
    [PATCH 3.19.y-ckt 034/128] ocfs2: fix umask ignored issue Kamal Mostafa <kamal@canonical.com> - 2015-12-16 19:20 +0100
    [PATCH 3.19.y-ckt 043/128] ipvlan: fix leak in ipvlan_rcv_frame Kamal Mostafa <kamal@canonical.com> - 2015-12-16 19:20 +0100
    [PATCH 3.19.y-ckt 029/128] arm64: restore bogomips information in /proc/cpuinfo Kamal Mostafa <kamal@canonical.com> - 2015-12-16 19:20 +0100
    [PATCH 3.19.y-ckt 051/128] ALSA: usb-audio: prevent CH345 multiport output SysEx corruption Kamal Mostafa <kamal@canonical.com> - 2015-12-16 19:20 +0100
    [PATCH 3.19.y-ckt 058/128] KVM: Provide function for VCPU lookup by id Kamal Mostafa <kamal@canonical.com> - 2015-12-16 19:20 +0100
    [PATCH 3.19.y-ckt 036/128] parisc: Drop unused MADV_xxxK_PAGES flags from asm/mman.h Kamal Mostafa <kamal@canonical.com> - 2015-12-16 19:20 +0100
    [PATCH 3.19.y-ckt 038/128] tools/net: Use include/uapi with __EXPORTED_HEADERS__ Kamal Mostafa <kamal@canonical.com> - 2015-12-16 19:20 +0100
    [PATCH 3.19.y-ckt 021/128] drm/radeon: unconditionally set sysfs_initialized Kamal Mostafa <kamal@canonical.com> - 2015-12-16 19:20 +0100
    [PATCH 3.19.y-ckt 049/128] macvlan: fix leak in macvlan_handle_frame Kamal Mostafa <kamal@canonical.com> - 2015-12-16 19:20 +0100
    [PATCH 3.19.y-ckt 050/128] ALSA: usb-audio: add packet size quirk for the Medeli DD305 Kamal Mostafa <kamal@canonical.com> - 2015-12-16 19:20 +0100
    [PATCH 3.19.y-ckt 037/128] mmc: remove bondage between REQ_META and reliable write Kamal Mostafa <kamal@canonical.com> - 2015-12-16 19:20 +0100
    [PATCH 3.19.y-ckt 048/128] net/mlx4_core: Avoid returning success in case of an error flow Kamal Mostafa <kamal@canonical.com> - 2015-12-16 19:20 +0100
    [PATCH 3.19.y-ckt 039/128] packet: do skb_probe_transport_header when we actually have data Kamal Mostafa <kamal@canonical.com> - 2015-12-16 19:20 +0100
    [PATCH 3.19.y-ckt 026/128] xhci: Workaround to get Intel xHCI reset working more reliably Kamal Mostafa <kamal@canonical.com> - 2015-12-16 19:20 +0100
    [PATCH 3.19.y-ckt 053/128] dm thin: restore requested 'error_if_no_space' setting on OODS to WRITE transition Kamal Mostafa <kamal@canonical.com> - 2015-12-16 19:20 +0100
    [PATCH 3.19.y-ckt 054/128] dm: fix ioctl retry termination with signal Kamal Mostafa <kamal@canonical.com> - 2015-12-16 19:20 +0100
    [PATCH 3.19.y-ckt 040/128] sctp: translate host order to network order when setting a hmacid Kamal Mostafa <kamal@canonical.com> - 2015-12-16 19:20 +0100
    [PATCH 3.19.y-ckt 028/128] x86/cpu: Fix SMAP check in PVOPS environments Kamal Mostafa <kamal@canonical.com> - 2015-12-16 19:20 +0100
    [PATCH 3.19.y-ckt 041/128] usb: musb: core: fix order of arguments to ulpi write callback Kamal Mostafa <kamal@canonical.com> - 2015-12-16 19:20 +0100
    [PATCH 3.19.y-ckt 061/128] ALSA: hda - Add fixup for Acer Aspire One Cloudbook 14 Kamal Mostafa <kamal@canonical.com> - 2015-12-16 19:20 +0100
    [PATCH 3.19.y-ckt 011/128] crypto: qat - don't use userspace pointer Kamal Mostafa <kamal@canonical.com> - 2015-12-16 19:20 +0100
    [PATCH 3.19.y-ckt 024/128] usb: dwc3: gadget: let us set lower max_speed Kamal Mostafa <kamal@canonical.com> - 2015-12-16 19:20 +0100
    [PATCH 3.19.y-ckt 047/128] packet: fix tpacket_snd max frame len Kamal Mostafa <kamal@canonical.com> - 2015-12-16 19:20 +0100
    [PATCH 3.19.y-ckt 059/128] KVM: s390: avoid memory overwrites on emergency signal injection Kamal Mostafa <kamal@canonical.com> - 2015-12-16 19:20 +0100
    [PATCH 3.19.y-ckt 022/128] USB: qcserial: Fix support for HP lt4112 LTE/HSPA+ Gobi 4G Modem Kamal Mostafa <kamal@canonical.com> - 2015-12-16 19:20 +0100
    [PATCH 3.19.y-ckt 044/128] ipvlan: fix use after free of skb Kamal Mostafa <kamal@canonical.com> - 2015-12-16 19:20 +0100
    [PATCH 3.19.y-ckt 052/128] ALSA: usb-audio: work around CH345 input SysEx corruption Kamal Mostafa <kamal@canonical.com> - 2015-12-16 19:20 +0100
    [PATCH 3.19.y-ckt 027/128] xhci: Fix a race in usb2 LPM resume, blocking U3 for usb2 devices Kamal Mostafa <kamal@canonical.com> - 2015-12-16 19:20 +0100
    [PATCH 3.19.y-ckt 020/128] drm/radeon: Disable uncacheable CPU mappings of GTT with RV6xx Kamal Mostafa <kamal@canonical.com> - 2015-12-16 19:20 +0100
    [PATCH 3.19.y-ckt 046/128] packet: only allow extra vlan len on ethernet devices Kamal Mostafa <kamal@canonical.com> - 2015-12-16 19:20 +0100
    [PATCH 3.19.y-ckt 013/128] iio: adc: xilinx: Fix VREFN scale Kamal Mostafa <kamal@canonical.com> - 2015-12-16 19:30 +0100
    [PATCH 3.19.y-ckt 004/128] iio: ad5064: Fix ad5629/ad5669 shift Kamal Mostafa <kamal@canonical.com> - 2015-12-16 19:30 +0100
    [PATCH 3.19.y-ckt 018/128] USB: ti_usb_3410_5052: Add Honeywell HGI80 ID Kamal Mostafa <kamal@canonical.com> - 2015-12-16 19:30 +0100
    [PATCH 3.19.y-ckt 016/128] USB: qcserial: Add support for Quectel EC20 Mini PCIe module Kamal Mostafa <kamal@canonical.com> - 2015-12-16 19:30 +0100
    [PATCH 3.19.y-ckt 017/128] USB: serial: option: add support for Novatel MiFi USB620L Kamal Mostafa <kamal@canonical.com> - 2015-12-16 19:30 +0100
    [PATCH 3.19.y-ckt 019/128] drm/i915: get runtime PM reference around GEM set_caching IOCTL Kamal Mostafa <kamal@canonical.com> - 2015-12-16 19:30 +0100
    [PATCH 3.19.y-ckt 005/128] iio:ad7793: Fix ad7785 product ID Kamal Mostafa <kamal@canonical.com> - 2015-12-16 19:30 +0100
    [PATCH 3.19.y-ckt 015/128] drm/i915: quirk backlight present on Macbook 4, 1 Kamal Mostafa <kamal@canonical.com> - 2015-12-16 19:30 +0100
    [PATCH 3.19.y-ckt 012/128] iio: si7020: Swap data byte order Kamal Mostafa <kamal@canonical.com> - 2015-12-16 19:30 +0100
    [PATCH 3.19.y-ckt 001/128] vf610_adc: Fix internal temperature calculation Kamal Mostafa <kamal@canonical.com> - 2015-12-16 19:30 +0100
    [PATCH 3.19.y-ckt 002/128] iio: lpc32xx_adc: fix warnings caused by enabling unprepared clock Kamal Mostafa <kamal@canonical.com> - 2015-12-16 19:30 +0100
    [PATCH 3.19.y-ckt 014/128] ipmi: Start the timer and thread on internal msgs Kamal Mostafa <kamal@canonical.com> - 2015-12-16 19:30 +0100

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#1293241 — [PATCH 3.19.y-ckt 007/128] x86: Make is_64bit_mm() widely available

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

------------------

From: Dave Hansen <dave.hansen@linux.intel.com>

commit b0e9b09b3bd64e67bba862e238d3757b2482b6de upstream.

The uprobes code has a nice helper, is_64bit_mm(), that consults
both the runtime and compile-time flags for 32-bit support.
Instead of reinventing the wheel, pull it in to an x86 header so
we can use it for MPX.

I prefer passing the 'mm' around to test_thread_flag(TIF_IA32)
because it makes it explicit where the context is coming from.

Signed-off-by: Dave Hansen <dave.hansen@linux.intel.com>
Reviewed-by: Thomas Gleixner <tglx@linutronix.de>
Cc: Andrew Morton <akpm@linux-foundation.org>
Cc: Dave Hansen <dave@sr71.net>
Cc: H. Peter Anvin <hpa@zytor.com>
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Cc: Oleg Nesterov <oleg@redhat.com>
Cc: Peter Zijlstra <peterz@infradead.org>
Link: http://lkml.kernel.org/r/20150607183704.F0209999@viggo.jf.intel.com
Signed-off-by: Ingo Molnar <mingo@kernel.org>
[ kamal: 3.19-stable prereq for "46561c3 x86/mpx: Do proper get_user() when
  running 32-bit binaries on 64-bit kernels" ]
Signed-off-by: Kamal Mostafa <kamal@canonical.com>
---
 arch/x86/include/asm/mmu_context.h | 13 +++++++++++++
 arch/x86/kernel/uprobes.c          | 10 +---------
 2 files changed, 14 insertions(+), 9 deletions(-)

diff --git a/arch/x86/include/asm/mmu_context.h b/arch/x86/include/asm/mmu_context.h
index 1ab38a4..acdeb2be 100644
--- a/arch/x86/include/asm/mmu_context.h
+++ b/arch/x86/include/asm/mmu_context.h
@@ -165,6 +165,19 @@ static inline void arch_exit_mmap(struct mm_struct *mm)
 	paravirt_arch_exit_mmap(mm);
 }
 
+#ifdef CONFIG_X86_64
+static inline bool is_64bit_mm(struct mm_struct *mm)
+{
+	return	!config_enabled(CONFIG_IA32_EMULATION) ||
+		!(mm->context.ia32_compat == TIF_IA32);
+}
+#else
+static inline bool is_64bit_mm(struct mm_struct *mm)
+{
+	return false;
+}
+#endif
+
 static inline void arch_bprm_mm_init(struct mm_struct *mm,
 		struct vm_area_struct *vma)
 {
diff --git a/arch/x86/kernel/uprobes.c b/arch/x86/kernel/uprobes.c
index 8b96a94..6b1ca70 100644
--- a/arch/x86/kernel/uprobes.c
+++ b/arch/x86/kernel/uprobes.c
@@ -29,6 +29,7 @@
 #include <linux/kdebug.h>
 #include <asm/processor.h>
 #include <asm/insn.h>
+#include <asm/mmu_context.h>
 
 /* Post-execution fixups. */
 
@@ -245,11 +246,6 @@ static int uprobe_init_insn(struct arch_uprobe *auprobe, struct insn *insn, bool
 }
 
 #ifdef CONFIG_X86_64
-static inline bool is_64bit_mm(struct mm_struct *mm)
-{
-	return	!config_enabled(CONFIG_IA32_EMULATION) ||
-		!(mm->context.ia32_compat == TIF_IA32);
-}
 /*
  * If arch_uprobe->insn doesn't use rip-relative addressing, return
  * immediately.  Otherwise, rewrite the instruction so that it accesses
@@ -430,10 +426,6 @@ static void riprel_post_xol(struct arch_uprobe *auprobe, struct pt_regs *regs)
 	}
 }
 #else /* 32-bit: */
-static inline bool is_64bit_mm(struct mm_struct *mm)
-{
-	return false;
-}
 /*
  * No RIP-relative addressing on 32-bit
  */
-- 
1.9.1

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#1293242 — [PATCH 3.19.y-ckt 072/128] ALSA: hda - Fix headphone noise after Dell XPS 13 resume back from S3

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

------------------

From: Hui Wang <hui.wang@canonical.com>

commit 8c69729b4439bbda88c3073df7243f755cc418ed upstream.

We have a machine Dell XPS 13 with the codec alc256, after resume back
from S3, the headphone has noise when play sound.

Through comparing with the coeff vaule before and after S3, we found
restoring a coeff register will help remove noise.

BugLink: https://bugs.launchpad.net/bugs/1519168
Cc: Kailang Yang <kailang@realtek.com>
Signed-off-by: Hui Wang <hui.wang@canonical.com>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
Signed-off-by: Kamal Mostafa <kamal@canonical.com>
---
 sound/pci/hda/patch_realtek.c | 13 +++++++++++++
 1 file changed, 13 insertions(+)

diff --git a/sound/pci/hda/patch_realtek.c b/sound/pci/hda/patch_realtek.c
index 8ab29ec..454ada2 100644
--- a/sound/pci/hda/patch_realtek.c
+++ b/sound/pci/hda/patch_realtek.c
@@ -4355,6 +4355,7 @@ enum {
 	ALC280_FIXUP_HP_GPIO4,
 	ALC286_FIXUP_HP_GPIO_LED,
 	ALC275_FIXUP_DELL_XPS,
+	ALC256_FIXUP_DELL_XPS_13_HEADPHONE_NOISE,
 };
 
 static const struct hda_fixup alc269_fixups[] = {
@@ -4865,6 +4866,17 @@ static const struct hda_fixup alc269_fixups[] = {
 			{}
 		}
 	},
+	[ALC256_FIXUP_DELL_XPS_13_HEADPHONE_NOISE] = {
+		.type = HDA_FIXUP_VERBS,
+		.v.verbs = (const struct hda_verb[]) {
+			/* Disable pass-through path for FRONT 14h */
+			{0x20, AC_VERB_SET_COEF_INDEX, 0x36},
+			{0x20, AC_VERB_SET_PROC_COEF, 0x1737},
+			{}
+		},
+		.chained = true,
+		.chain_id = ALC255_FIXUP_DELL1_MIC_NO_PRESENCE
+	},
 };
 
 static const struct snd_pci_quirk alc269_fixup_tbl[] = {
@@ -4894,6 +4906,7 @@ static const struct snd_pci_quirk alc269_fixup_tbl[] = {
 	SND_PCI_QUIRK(0x1028, 0x06c7, "Dell", ALC255_FIXUP_DELL1_MIC_NO_PRESENCE),
 	SND_PCI_QUIRK(0x1028, 0x06d9, "Dell", ALC293_FIXUP_DELL1_MIC_NO_PRESENCE),
 	SND_PCI_QUIRK(0x1028, 0x06da, "Dell", ALC293_FIXUP_DELL1_MIC_NO_PRESENCE),
+	SND_PCI_QUIRK(0x1028, 0x0704, "Dell XPS 13", ALC256_FIXUP_DELL_XPS_13_HEADPHONE_NOISE),
 	SND_PCI_QUIRK(0x1028, 0x164a, "Dell", ALC293_FIXUP_DELL1_MIC_NO_PRESENCE),
 	SND_PCI_QUIRK(0x1028, 0x164b, "Dell", ALC293_FIXUP_DELL1_MIC_NO_PRESENCE),
 	SND_PCI_QUIRK(0x103c, 0x1586, "HP", ALC269_FIXUP_HP_MUTE_LED_MIC2),
-- 
1.9.1

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#1293243 — [PATCH 3.19.y-ckt 069/128] vfs: Avoid softlockups with sendfile(2)

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

------------------

From: Jan Kara <jack@suse.cz>

commit c2489e07c0a71a56fb2c84bc0ee66cddfca7d068 upstream.

The following test program from Dmitry can cause softlockups or RCU
stalls as it copies 1GB from tmpfs into eventfd and we don't have any
scheduling point at that path in sendfile(2) implementation:

        int r1 = eventfd(0, 0);
        int r2 = memfd_create("", 0);
        unsigned long n = 1<<30;
        fallocate(r2, 0, 0, n);
        sendfile(r1, r2, 0, n);

Add cond_resched() into __splice_from_pipe() to fix the problem.

CC: Dmitry Vyukov <dvyukov@google.com>
Signed-off-by: Jan Kara <jack@suse.cz>
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
Signed-off-by: Kamal Mostafa <kamal@canonical.com>
---
 fs/splice.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/fs/splice.c b/fs/splice.c
index d934f8e4..c4b93e4 100644
--- a/fs/splice.c
+++ b/fs/splice.c
@@ -888,6 +888,7 @@ ssize_t __splice_from_pipe(struct pipe_inode_info *pipe, struct splice_desc *sd,
 
 	splice_from_pipe_begin(sd);
 	do {
+		cond_resched();
 		ret = splice_from_pipe_next(pipe, sd);
 		if (ret > 0)
 			ret = splice_from_pipe_feed(pipe, sd, actor);
-- 
1.9.1

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#1293244 — [PATCH 3.19.y-ckt 082/128] drm/radeon: make some dpm errors debug only

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

------------------

From: Alex Deucher <alexander.deucher@amd.com>

commit 9c565e3386fdc804a61f8c116efc2c5999ba46e1 upstream.

"Could not force DPM to low", etc. is usually harmless and
just confuses users.

Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Kamal Mostafa <kamal@canonical.com>
---
 drivers/gpu/drm/radeon/rv730_dpm.c | 2 +-
 drivers/gpu/drm/radeon/rv770_dpm.c | 4 ++--
 2 files changed, 3 insertions(+), 3 deletions(-)

diff --git a/drivers/gpu/drm/radeon/rv730_dpm.c b/drivers/gpu/drm/radeon/rv730_dpm.c
index 3f5e1cf..d37ba2c 100644
--- a/drivers/gpu/drm/radeon/rv730_dpm.c
+++ b/drivers/gpu/drm/radeon/rv730_dpm.c
@@ -464,7 +464,7 @@ void rv730_stop_dpm(struct radeon_device *rdev)
 	result = rv770_send_msg_to_smc(rdev, PPSMC_MSG_TwoLevelsDisabled);
 
 	if (result != PPSMC_Result_OK)
-		DRM_ERROR("Could not force DPM to low\n");
+		DRM_DEBUG("Could not force DPM to low\n");
 
 	WREG32_P(GENERAL_PWRMGT, 0, ~GLOBAL_PWRMGT_EN);
 
diff --git a/drivers/gpu/drm/radeon/rv770_dpm.c b/drivers/gpu/drm/radeon/rv770_dpm.c
index f1d2569..24f85c6 100644
--- a/drivers/gpu/drm/radeon/rv770_dpm.c
+++ b/drivers/gpu/drm/radeon/rv770_dpm.c
@@ -193,7 +193,7 @@ void rv770_stop_dpm(struct radeon_device *rdev)
 	result = rv770_send_msg_to_smc(rdev, PPSMC_MSG_TwoLevelsDisabled);
 
 	if (result != PPSMC_Result_OK)
-		DRM_ERROR("Could not force DPM to low.\n");
+		DRM_DEBUG("Could not force DPM to low.\n");
 
 	WREG32_P(GENERAL_PWRMGT, 0, ~GLOBAL_PWRMGT_EN);
 
@@ -1416,7 +1416,7 @@ int rv770_resume_smc(struct radeon_device *rdev)
 int rv770_set_sw_state(struct radeon_device *rdev)
 {
 	if (rv770_send_msg_to_smc(rdev, PPSMC_MSG_SwitchToSwState) != PPSMC_Result_OK)
-		DRM_ERROR("rv770_set_sw_state failed\n");
+		DRM_DEBUG("rv770_set_sw_state failed\n");
 	return 0;
 }
 
-- 
1.9.1

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#1293245 — [PATCH 3.19.y-ckt 032/128] fat: fix fake_offset handling on error path

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

------------------

From: OGAWA Hirofumi <hirofumi@mail.parknet.co.jp>

commit 928a477102c4fc6739883415b66987207e3502f4 upstream.

For the root directory, .  and ..  are faked (using dir_emit_dots()) and
ctx->pos is reset from 2 to 0.

A corrupted root directory could cause fat_get_entry() to fail, but
->iterate() (fat_readdir()) reports progress to the VFS (with ctx->pos
rewound to 0), so any following calls to ->iterate() continue to return
the same entries again and again.

The result is that userspace will never see the end of the directory,
causing e.g.  'ls' to hang in a getdents() loop.

[hirofumi@mail.parknet.co.jp: cleanup and make sure to correct fake_offset]
Reported-by: Vegard Nossum <vegard.nossum@oracle.com>
Tested-by: Vegard Nossum <vegard.nossum@oracle.com>
Signed-off-by: Richard Weinberger <richard.weinberger@gmail.com>
Signed-off-by: OGAWA Hirofumi <hirofumi@mail.parknet.co.jp>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Signed-off-by: Kamal Mostafa <kamal@canonical.com>
---
 fs/fat/dir.c | 16 +++++++++++-----
 1 file changed, 11 insertions(+), 5 deletions(-)

diff --git a/fs/fat/dir.c b/fs/fat/dir.c
index c5d6bb9..eeda31c 100644
--- a/fs/fat/dir.c
+++ b/fs/fat/dir.c
@@ -614,9 +614,9 @@ parse_record:
 		int status = fat_parse_long(inode, &cpos, &bh, &de,
 					    &unicode, &nr_slots);
 		if (status < 0) {
-			ctx->pos = cpos;
+			bh = NULL;
 			ret = status;
-			goto out;
+			goto end_of_dir;
 		} else if (status == PARSE_INVALID)
 			goto record_end;
 		else if (status == PARSE_NOT_LONGNAME)
@@ -658,8 +658,9 @@ parse_record:
 	fill_len = short_len;
 
 start_filldir:
-	if (!fake_offset)
-		ctx->pos = cpos - (nr_slots + 1) * sizeof(struct msdos_dir_entry);
+	ctx->pos = cpos - (nr_slots + 1) * sizeof(struct msdos_dir_entry);
+	if (fake_offset && ctx->pos < 2)
+		ctx->pos = 2;
 
 	if (!memcmp(de->name, MSDOS_DOT, MSDOS_NAME)) {
 		if (!dir_emit_dot(file, ctx))
@@ -685,14 +686,19 @@ record_end:
 	fake_offset = 0;
 	ctx->pos = cpos;
 	goto get_new;
+
 end_of_dir:
-	ctx->pos = cpos;
+	if (fake_offset && cpos < 2)
+		ctx->pos = 2;
+	else
+		ctx->pos = cpos;
 fill_failed:
 	brelse(bh);
 	if (unicode)
 		__putname(unicode);
 out:
 	mutex_unlock(&sbi->s_lock);
+
 	return ret;
 }
 
-- 
1.9.1

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#1293246 — [PATCH 3.19.y-ckt 081/128] ARM: orion5x: Fix legacy get_irqnr_and_base

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

------------------

From: Nicolas Pitre <nicolas.pitre@linaro.org>

commit 4d2ec7e206ae03a51dfbdedc120ce88d403ec926 upstream.

Commit 5be9fc23cd ("ARM: orion5x: fix legacy orion5x IRQ numbers") shifted
IRQ numbers by one but didn't update the get_irqnr_and_base macro
accordingly.  This macro is involved when CONFIG_MULTI_IRQ_HANDLER
is not defined.

[jac: 5d6bed2a9c went in to v4.2, but was backported to v3.18]

Signed-off-by: Nicolas Pitre <nico@linaro.org>
Fixes: 5be9fc23cd ("ARM: orion5x: fix legacy orion5x IRQ numbers")
Signed-off-by: Jason Cooper <jason@lakedaemon.net>
Signed-off-by: Kamal Mostafa <kamal@canonical.com>
---
 arch/arm/mach-orion5x/include/mach/entry-macro.S | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/arch/arm/mach-orion5x/include/mach/entry-macro.S b/arch/arm/mach-orion5x/include/mach/entry-macro.S
index 79eb502..73919a3 100644
--- a/arch/arm/mach-orion5x/include/mach/entry-macro.S
+++ b/arch/arm/mach-orion5x/include/mach/entry-macro.S
@@ -21,5 +21,5 @@
 	@ find cause bits that are unmasked
 	ands	\irqstat, \irqstat, \tmp	@ clear Z flag if any
 	clzne	\irqnr,	\irqstat		@ calc irqnr
-	rsbne	\irqnr, \irqnr, #31
+	rsbne	\irqnr, \irqnr, #32
 	.endm
-- 
1.9.1

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#1293247 — [PATCH 3.19.y-ckt 035/128] tty: Fix tty_send_xchar() lock order inversion

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

------------------

From: Peter Hurley <peter@hurleysoftware.com>

commit ee0c1a65cf95230d5eb3d9de94fd2ead9a428c67 upstream.

The correct lock order is atomic_write_lock => termios_rwsem, as
established by tty_write() => n_tty_write().

Fixes: c274f6ef1c666 ("tty: Hold termios_rwsem for tcflow(TCIxxx)")
Reported-and-Tested-by: Dmitry Vyukov <dvyukov@google.com>
Signed-off-by: Peter Hurley <peter@hurleysoftware.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: Kamal Mostafa <kamal@canonical.com>
---
 drivers/tty/tty_io.c    | 4 ++++
 drivers/tty/tty_ioctl.c | 4 ----
 2 files changed, 4 insertions(+), 4 deletions(-)

diff --git a/drivers/tty/tty_io.c b/drivers/tty/tty_io.c
index 27051e29..cc7b224 100644
--- a/drivers/tty/tty_io.c
+++ b/drivers/tty/tty_io.c
@@ -1281,18 +1281,22 @@ int tty_send_xchar(struct tty_struct *tty, char ch)
 	int	was_stopped = tty->stopped;
 
 	if (tty->ops->send_xchar) {
+		down_read(&tty->termios_rwsem);
 		tty->ops->send_xchar(tty, ch);
+		up_read(&tty->termios_rwsem);
 		return 0;
 	}
 
 	if (tty_write_lock(tty, 0) < 0)
 		return -ERESTARTSYS;
 
+	down_read(&tty->termios_rwsem);
 	if (was_stopped)
 		start_tty(tty);
 	tty->ops->write(tty, &ch, 1);
 	if (was_stopped)
 		stop_tty(tty);
+	up_read(&tty->termios_rwsem);
 	tty_write_unlock(tty);
 	return 0;
 }
diff --git a/drivers/tty/tty_ioctl.c b/drivers/tty/tty_ioctl.c
index 552076b..a9fe807 100644
--- a/drivers/tty/tty_ioctl.c
+++ b/drivers/tty/tty_ioctl.c
@@ -1144,16 +1144,12 @@ int n_tty_ioctl_helper(struct tty_struct *tty, struct file *file,
 			spin_unlock_irq(&tty->flow_lock);
 			break;
 		case TCIOFF:
-			down_read(&tty->termios_rwsem);
 			if (STOP_CHAR(tty) != __DISABLED_CHAR)
 				retval = tty_send_xchar(tty, STOP_CHAR(tty));
-			up_read(&tty->termios_rwsem);
 			break;
 		case TCION:
-			down_read(&tty->termios_rwsem);
 			if (START_CHAR(tty) != __DISABLED_CHAR)
 				retval = tty_send_xchar(tty, START_CHAR(tty));
-			up_read(&tty->termios_rwsem);
 			break;
 		default:
 			return -EINVAL;
-- 
1.9.1

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#1293248 — [PATCH 3.19.y-ckt 060/128] KVM: s390: fix wrong lookup of VCPUs by array index

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

------------------

From: David Hildenbrand <dahi@linux.vnet.ibm.com>

commit 152e9f65d66f0a3891efc3869440becc0e7ff53f upstream.

For now, VCPUs were always created sequentially with incrementing
VCPU ids. Therefore, the index in the VCPUs array matched the id.

As sequential creation might change with cpu hotplug, let's use
the correct lookup function to find a VCPU by id, not array index.

Let's also use kvm_lookup_vcpu() for validation of the sending VCPU
on external call injection.

Reviewed-by: Christian Borntraeger <borntraeger@de.ibm.com>
Signed-off-by: David Hildenbrand <dahi@linux.vnet.ibm.com>
Signed-off-by: Christian Borntraeger <borntraeger@de.ibm.com>
[ kamal: backport to 3.19-stable: dropped __inject_extcall validation change ]
Signed-off-by: Kamal Mostafa <kamal@canonical.com>
---
 arch/s390/kvm/sigp.c | 8 ++------
 1 file changed, 2 insertions(+), 6 deletions(-)

diff --git a/arch/s390/kvm/sigp.c b/arch/s390/kvm/sigp.c
index 6651f9f..7ca07cb 100644
--- a/arch/s390/kvm/sigp.c
+++ b/arch/s390/kvm/sigp.c
@@ -317,12 +317,8 @@ static int handle_sigp_dst(struct kvm_vcpu *vcpu, u8 order_code,
 			   u16 cpu_addr, u32 parameter, u64 *status_reg)
 {
 	int rc;
-	struct kvm_vcpu *dst_vcpu;
+	struct kvm_vcpu *dst_vcpu = kvm_get_vcpu_by_id(vcpu->kvm, cpu_addr);
 
-	if (cpu_addr >= KVM_MAX_VCPUS)
-		return SIGP_CC_NOT_OPERATIONAL;
-
-	dst_vcpu = kvm_get_vcpu(vcpu->kvm, cpu_addr);
 	if (!dst_vcpu)
 		return SIGP_CC_NOT_OPERATIONAL;
 
@@ -452,7 +448,7 @@ int kvm_s390_handle_sigp_pei(struct kvm_vcpu *vcpu)
 	trace_kvm_s390_handle_sigp_pei(vcpu, order_code, cpu_addr);
 
 	if (order_code == SIGP_EXTERNAL_CALL) {
-		dest_vcpu = kvm_get_vcpu(vcpu->kvm, cpu_addr);
+		dest_vcpu = kvm_get_vcpu_by_id(vcpu->kvm, cpu_addr);
 		BUG_ON(dest_vcpu == NULL);
 
 		kvm_s390_vcpu_wakeup(dest_vcpu);
-- 
1.9.1

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#1293249 — [PATCH 3.19.y-ckt 030/128] USB: option: add XS Stick W100-2 from 4G Systems

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

------------------

From: =?UTF-8?q?Bj=C3=B8rn=20Mork?= <bjorn@mork.no>

commit 638148e20c7f8f6e95017fdc13bce8549a6925e0 upstream.

Thomas reports
"
4gsystems sells two total different LTE-surfsticks under the same name.
..
The newer version of XS Stick W100 is from "omega"
..
Under windows the driver switches to the same ID, and uses MI03\6 for
network and MI01\6 for modem.
..
echo "1c9e 9b01" > /sys/bus/usb/drivers/qmi_wwan/new_id
echo "1c9e 9b01" > /sys/bus/usb-serial/drivers/option1/new_id

T:  Bus=01 Lev=01 Prnt=01 Port=03 Cnt=01 Dev#=  4 Spd=480 MxCh= 0
D:  Ver= 2.00 Cls=00(>ifc ) Sub=00 Prot=00 MxPS=64 #Cfgs=  1
P:  Vendor=1c9e ProdID=9b01 Rev=02.32
S:  Manufacturer=USB Modem
S:  Product=USB Modem
S:  SerialNumber=
C:  #Ifs= 5 Cfg#= 1 Atr=80 MxPwr=500mA
I:  If#= 0 Alt= 0 #EPs= 2 Cls=ff(vend.) Sub=ff Prot=ff Driver=option
I:  If#= 1 Alt= 0 #EPs= 3 Cls=ff(vend.) Sub=ff Prot=ff Driver=option
I:  If#= 2 Alt= 0 #EPs= 3 Cls=ff(vend.) Sub=ff Prot=ff Driver=option
I:  If#= 3 Alt= 0 #EPs= 3 Cls=ff(vend.) Sub=ff Prot=ff Driver=qmi_wwan
I:  If#= 4 Alt= 0 #EPs= 2 Cls=08(stor.) Sub=06 Prot=50 Driver=usb-storage

Now all important things are there:

wwp0s29f7u2i3 (net), ttyUSB2 (at), cdc-wdm0 (qmi), ttyUSB1 (at)

There is also ttyUSB0, but it is not usable, at least not for at.

The device works well with qmi and ModemManager-NetworkManager.
"

Reported-by: Thomas Schäfer <tschaefer@t-online.de>
Signed-off-by: Bjørn Mork <bjorn@mork.no>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: Kamal Mostafa <kamal@canonical.com>
---
 drivers/usb/serial/option.c | 9 +++++++++
 1 file changed, 9 insertions(+)

diff --git a/drivers/usb/serial/option.c b/drivers/usb/serial/option.c
index a7a0156..1d7f007 100644
--- a/drivers/usb/serial/option.c
+++ b/drivers/usb/serial/option.c
@@ -358,6 +358,7 @@ static void option_instat_callback(struct urb *urb);
 /* This is the 4G XS Stick W14 a.k.a. Mobilcom Debitel Surf-Stick *
  * It seems to contain a Qualcomm QSC6240/6290 chipset            */
 #define FOUR_G_SYSTEMS_PRODUCT_W14		0x9603
+#define FOUR_G_SYSTEMS_PRODUCT_W100		0x9b01
 
 /* iBall 3.5G connect wireless modem */
 #define IBALL_3_5G_CONNECT			0x9605
@@ -531,6 +532,11 @@ static const struct option_blacklist_info four_g_w14_blacklist = {
 	.sendsetup = BIT(0) | BIT(1),
 };
 
+static const struct option_blacklist_info four_g_w100_blacklist = {
+	.sendsetup = BIT(1) | BIT(2),
+	.reserved = BIT(3),
+};
+
 static const struct option_blacklist_info alcatel_x200_blacklist = {
 	.sendsetup = BIT(0) | BIT(1),
 	.reserved = BIT(4),
@@ -1663,6 +1669,9 @@ static const struct usb_device_id option_ids[] = {
 	{ USB_DEVICE(LONGCHEER_VENDOR_ID, FOUR_G_SYSTEMS_PRODUCT_W14),
   	  .driver_info = (kernel_ulong_t)&four_g_w14_blacklist
   	},
+	{ USB_DEVICE(LONGCHEER_VENDOR_ID, FOUR_G_SYSTEMS_PRODUCT_W100),
+	  .driver_info = (kernel_ulong_t)&four_g_w100_blacklist
+	},
 	{ USB_DEVICE_INTERFACE_CLASS(LONGCHEER_VENDOR_ID, SPEEDUP_PRODUCT_SU9800, 0xff) },
 	{ USB_DEVICE(LONGCHEER_VENDOR_ID, ZOOM_PRODUCT_4597) },
 	{ USB_DEVICE(LONGCHEER_VENDOR_ID, IBALL_3_5G_CONNECT) },
-- 
1.9.1

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#1293250 — [PATCH 3.19.y-ckt 034/128] ocfs2: fix umask ignored issue

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

------------------

From: Junxiao Bi <junxiao.bi@oracle.com>

commit 8f1eb48758aacf6c1ffce18179295adbf3bd7640 upstream.

New created file's mode is not masked with umask, and this makes umask not
work for ocfs2 volume.

Fixes: 702e5bc ("ocfs2: use generic posix ACL infrastructure")
Signed-off-by: Junxiao Bi <junxiao.bi@oracle.com>
Cc: Gang He <ghe@suse.com>
Cc: Mark Fasheh <mfasheh@suse.de>
Cc: Joel Becker <jlbec@evilplan.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Signed-off-by: Kamal Mostafa <kamal@canonical.com>
---
 fs/ocfs2/namei.c | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/fs/ocfs2/namei.c b/fs/ocfs2/namei.c
index 914c121..9fc1dae 100644
--- a/fs/ocfs2/namei.c
+++ b/fs/ocfs2/namei.c
@@ -361,6 +361,8 @@ static int ocfs2_mknod(struct inode *dir,
 		mlog_errno(status);
 		goto leave;
 	}
+	/* update inode->i_mode after mask with "umask". */
+	inode->i_mode = mode;
 
 	handle = ocfs2_start_trans(osb, ocfs2_mknod_credits(osb->sb,
 							    S_ISDIR(mode),
-- 
1.9.1

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#1293251 — [PATCH 3.19.y-ckt 043/128] ipvlan: fix leak in ipvlan_rcv_frame

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

------------------

From: Sabrina Dubroca <sd@queasysnail.net>

commit cf554ada0be7077906aa9a17faf151ff66e3cb8e upstream.

Pass a **skb to ipvlan_rcv_frame so that if skb_share_check returns a
new skb, we actually use it during further processing.

It's safe to ignore the new skb in the ipvlan_xmit_* functions, because
they call ipvlan_rcv_frame with local == true, so that dev_forward_skb
is called and always takes ownership of the skb.

Fixes: 2ad7bf363841 ("ipvlan: Initial check-in of the IPVLAN driver.")
Signed-off-by: Sabrina Dubroca <sd@queasysnail.net>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Kamal Mostafa <kamal@canonical.com>
---
 drivers/net/ipvlan/ipvlan_core.c | 12 +++++++-----
 1 file changed, 7 insertions(+), 5 deletions(-)

diff --git a/drivers/net/ipvlan/ipvlan_core.c b/drivers/net/ipvlan/ipvlan_core.c
index 8df3268..edf9ed8 100644
--- a/drivers/net/ipvlan/ipvlan_core.c
+++ b/drivers/net/ipvlan/ipvlan_core.c
@@ -237,7 +237,7 @@ mcast_acct:
 	}
 }
 
-static int ipvlan_rcv_frame(struct ipvl_addr *addr, struct sk_buff *skb,
+static int ipvlan_rcv_frame(struct ipvl_addr *addr, struct sk_buff **pskb,
 			    bool local)
 {
 	struct ipvl_dev *ipvlan = addr->master;
@@ -245,6 +245,7 @@ static int ipvlan_rcv_frame(struct ipvl_addr *addr, struct sk_buff *skb,
 	unsigned int len;
 	rx_handler_result_t ret = RX_HANDLER_CONSUMED;
 	bool success = false;
+	struct sk_buff *skb = *pskb;
 
 	len = skb->len + ETH_HLEN;
 	if (unlikely(!(dev->flags & IFF_UP))) {
@@ -256,6 +257,7 @@ static int ipvlan_rcv_frame(struct ipvl_addr *addr, struct sk_buff *skb,
 	if (!skb)
 		goto out;
 
+	*pskb = skb;
 	skb->dev = dev;
 	skb->pkt_type = PACKET_HOST;
 
@@ -447,7 +449,7 @@ static int ipvlan_xmit_mode_l3(struct sk_buff *skb, struct net_device *dev)
 
 	addr = ipvlan_addr_lookup(ipvlan->port, lyr3h, addr_type, true);
 	if (addr)
-		return ipvlan_rcv_frame(addr, skb, true);
+		return ipvlan_rcv_frame(addr, &skb, true);
 
 out:
 	skb->dev = ipvlan->phy_dev;
@@ -467,7 +469,7 @@ static int ipvlan_xmit_mode_l2(struct sk_buff *skb, struct net_device *dev)
 		if (lyr3h) {
 			addr = ipvlan_addr_lookup(ipvlan->port, lyr3h, addr_type, true);
 			if (addr)
-				return ipvlan_rcv_frame(addr, skb, true);
+				return ipvlan_rcv_frame(addr, &skb, true);
 		}
 		skb = skb_share_check(skb, GFP_ATOMIC);
 		if (!skb)
@@ -553,7 +555,7 @@ static rx_handler_result_t ipvlan_handle_mode_l3(struct sk_buff **pskb,
 
 	addr = ipvlan_addr_lookup(port, lyr3h, addr_type, true);
 	if (addr)
-		ret = ipvlan_rcv_frame(addr, skb, false);
+		ret = ipvlan_rcv_frame(addr, pskb, false);
 
 out:
 	return ret;
@@ -580,7 +582,7 @@ static rx_handler_result_t ipvlan_handle_mode_l2(struct sk_buff **pskb,
 
 		addr = ipvlan_addr_lookup(port, lyr3h, addr_type, true);
 		if (addr)
-			ret = ipvlan_rcv_frame(addr, skb, false);
+			ret = ipvlan_rcv_frame(addr, pskb, false);
 	}
 
 	return ret;
-- 
1.9.1

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#1293252 — [PATCH 3.19.y-ckt 029/128] arm64: restore bogomips information in /proc/cpuinfo

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

------------------

From: Yang Shi <yang.shi@linaro.org>

commit 92e788b749862ebe9920360513a718e5dd4da7a9 upstream.

As previously reported, some userspace applications depend on bogomips
showed by /proc/cpuinfo. Although there is much less legacy impact on
aarch64 than arm, it does break libvirt.

This patch reverts commit 326b16db9f69 ("arm64: delay: don't bother
reporting bogomips in /proc/cpuinfo"), but with some tweak due to
context change and without the pr_info().

Fixes: 326b16db9f69 ("arm64: delay: don't bother reporting bogomips in /proc/cpuinfo")
Signed-off-by: Yang Shi <yang.shi@linaro.org>
Acked-by: Will Deacon <will.deacon@arm.com>
Signed-off-by: Catalin Marinas <catalin.marinas@arm.com>
[ kamal: backport to 3.19-stable: applies to setup.c; context ]
Signed-off-by: Kamal Mostafa <kamal@canonical.com>
---
 arch/arm64/kernel/setup.c | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/arch/arm64/kernel/setup.c b/arch/arm64/kernel/setup.c
index 79fedd8d..386acb8 100644
--- a/arch/arm64/kernel/setup.c
+++ b/arch/arm64/kernel/setup.c
@@ -520,6 +520,9 @@ static int c_show(struct seq_file *m, void *v)
 #ifdef CONFIG_SMP
 		seq_printf(m, "processor\t: %d\n", i);
 #endif
+		seq_printf(m, "BogoMIPS\t: %lu.%02lu\n\n",
+			   loops_per_jiffy / (500000UL/HZ),
+			   loops_per_jiffy / (5000UL/HZ) % 100);
 
 		/*
 		 * Dump out the common processor features in a single line.
-- 
1.9.1

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#1293253 — [PATCH 3.19.y-ckt 051/128] ALSA: usb-audio: prevent CH345 multiport output SysEx corruption

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

------------------

From: Clemens Ladisch <clemens@ladisch.de>

commit 1ca8b201309d842642f221db7f02f71c0af5be2d upstream.

The CH345 USB MIDI chip has two output ports.  However, they are
multiplexed through one pin, and the number of ports cannot be reduced
even for hardware that implements only one connector, so for those
devices, data sent to either port ends up on the same hardware output.
This becomes a problem when both ports are used at the same time, as
longer MIDI commands (such as SysEx messages) are likely to be
interrupted by messages from the other port, and thus to get lost.

It would not be possible for the driver to detect how many ports the
device actually has, except that in practice, _all_ devices built with
the CH345 have only one port.  So we can just ignore the device's
descriptors, and hardcode one output port.

Signed-off-by: Clemens Ladisch <clemens@ladisch.de>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
Signed-off-by: Kamal Mostafa <kamal@canonical.com>
---
 sound/usb/midi.c         |  3 +++
 sound/usb/quirks-table.h | 11 +++++++++++
 sound/usb/quirks.c       |  1 +
 sound/usb/usbaudio.h     |  1 +
 4 files changed, 16 insertions(+)

diff --git a/sound/usb/midi.c b/sound/usb/midi.c
index f5bcacc..d968cc3 100644
--- a/sound/usb/midi.c
+++ b/sound/usb/midi.c
@@ -2377,6 +2377,9 @@ int snd_usbmidi_create(struct snd_card *card,
 
 		err = snd_usbmidi_detect_per_port_endpoints(umidi, endpoints);
 		break;
+	case QUIRK_MIDI_CH345:
+		err = snd_usbmidi_detect_per_port_endpoints(umidi, endpoints);
+		break;
 	default:
 		dev_err(&umidi->dev->dev, "invalid quirk type %d\n",
 			quirk->type);
diff --git a/sound/usb/quirks-table.h b/sound/usb/quirks-table.h
index b531993..f968c67 100644
--- a/sound/usb/quirks-table.h
+++ b/sound/usb/quirks-table.h
@@ -2824,6 +2824,17 @@ YAMAHA_DEVICE(0x7010, "UB99"),
 	.idProduct = 0x1020,
 },
 
+/* QinHeng devices */
+{
+	USB_DEVICE(0x1a86, 0x752d),
+	.driver_info = (unsigned long) &(const struct snd_usb_audio_quirk) {
+		.vendor_name = "QinHeng",
+		.product_name = "CH345",
+		.ifnum = 1,
+		.type = QUIRK_MIDI_CH345
+	}
+},
+
 /* KeithMcMillen Stringport */
 {
 	USB_DEVICE(0x1f38, 0x0001),
diff --git a/sound/usb/quirks.c b/sound/usb/quirks.c
index 449555c..9032510b 100644
--- a/sound/usb/quirks.c
+++ b/sound/usb/quirks.c
@@ -535,6 +535,7 @@ int snd_usb_create_quirk(struct snd_usb_audio *chip,
 		[QUIRK_MIDI_CME] = create_any_midi_quirk,
 		[QUIRK_MIDI_AKAI] = create_any_midi_quirk,
 		[QUIRK_MIDI_FTDI] = create_any_midi_quirk,
+		[QUIRK_MIDI_CH345] = create_any_midi_quirk,
 		[QUIRK_AUDIO_STANDARD_INTERFACE] = create_standard_audio_quirk,
 		[QUIRK_AUDIO_FIXED_ENDPOINT] = create_fixed_stream_quirk,
 		[QUIRK_AUDIO_EDIROL_UAXX] = create_uaxx_quirk,
diff --git a/sound/usb/usbaudio.h b/sound/usb/usbaudio.h
index 91d0380..991aa84 100644
--- a/sound/usb/usbaudio.h
+++ b/sound/usb/usbaudio.h
@@ -94,6 +94,7 @@ enum quirk_type {
 	QUIRK_MIDI_AKAI,
 	QUIRK_MIDI_US122L,
 	QUIRK_MIDI_FTDI,
+	QUIRK_MIDI_CH345,
 	QUIRK_AUDIO_STANDARD_INTERFACE,
 	QUIRK_AUDIO_FIXED_ENDPOINT,
 	QUIRK_AUDIO_EDIROL_UAXX,
-- 
1.9.1

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#1293254 — [PATCH 3.19.y-ckt 058/128] KVM: Provide function for VCPU lookup by id

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

------------------

From: David Hildenbrand <dahi@linux.vnet.ibm.com>

commit db27a7a37aa0b1f8b373f8b0fb72a2ccaafb85b7 upstream.

Let's provide a function to lookup a VCPU by id.

Reviewed-by: Christian Borntraeger <borntraeger@de.ibm.com>
Reviewed-by: Dominik Dingel <dingel@linux.vnet.ibm.com>
Signed-off-by: David Hildenbrand <dahi@linux.vnet.ibm.com>
Signed-off-by: Christian Borntraeger <borntraeger@de.ibm.com>
[split patch from refactoring patch]
[ kamal: 3.19-stable prereq for
  b85de33 KVM: s390: avoid memory overwrites on emergency signal injection ]
Signed-off-by: Kamal Mostafa <kamal@canonical.com>
---
 include/linux/kvm_host.h | 11 +++++++++++
 1 file changed, 11 insertions(+)

diff --git a/include/linux/kvm_host.h b/include/linux/kvm_host.h
index 26f1060..c3aa8f4 100644
--- a/include/linux/kvm_host.h
+++ b/include/linux/kvm_host.h
@@ -438,6 +438,17 @@ static inline struct kvm_vcpu *kvm_get_vcpu(struct kvm *kvm, int i)
 	     (vcpup = kvm_get_vcpu(kvm, idx)) != NULL; \
 	     idx++)
 
+static inline struct kvm_vcpu *kvm_get_vcpu_by_id(struct kvm *kvm, int id)
+{
+	struct kvm_vcpu *vcpu;
+	int i;
+
+	kvm_for_each_vcpu(i, vcpu, kvm)
+		if (vcpu->vcpu_id == id)
+			return vcpu;
+	return NULL;
+}
+
 #define kvm_for_each_memslot(memslot, slots)	\
 	for (memslot = &slots->memslots[0];	\
 	      memslot < slots->memslots + KVM_MEM_SLOTS_NUM && memslot->npages;\
-- 
1.9.1

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#1293255 — [PATCH 3.19.y-ckt 036/128] parisc: Drop unused MADV_xxxK_PAGES flags from asm/mman.h

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

------------------

From: Helge Deller <deller@gmx.de>

commit dcbf0d299c00ed4f82ea8d6e359ad88a5182f9b8 upstream.

Drop the MADV_xxK_PAGES flags, which were never used and were from a proposed
API which was never integrated into the generic Linux kernel code.

Signed-off-by: Helge Deller <deller@gmx.de>
Signed-off-by: Kamal Mostafa <kamal@canonical.com>
---
 arch/parisc/include/uapi/asm/mman.h | 10 ----------
 1 file changed, 10 deletions(-)

diff --git a/arch/parisc/include/uapi/asm/mman.h b/arch/parisc/include/uapi/asm/mman.h
index 294d251..2ae13ce5 100644
--- a/arch/parisc/include/uapi/asm/mman.h
+++ b/arch/parisc/include/uapi/asm/mman.h
@@ -46,16 +46,6 @@
 #define MADV_DONTFORK	10		/* don't inherit across fork */
 #define MADV_DOFORK	11		/* do inherit across fork */
 
-/* The range 12-64 is reserved for page size specification. */
-#define MADV_4K_PAGES   12              /* Use 4K pages  */
-#define MADV_16K_PAGES  14              /* Use 16K pages */
-#define MADV_64K_PAGES  16              /* Use 64K pages */
-#define MADV_256K_PAGES 18              /* Use 256K pages */
-#define MADV_1M_PAGES   20              /* Use 1 Megabyte pages */
-#define MADV_4M_PAGES   22              /* Use 4 Megabyte pages */
-#define MADV_16M_PAGES  24              /* Use 16 Megabyte pages */
-#define MADV_64M_PAGES  26              /* Use 64 Megabyte pages */
-
 #define MADV_MERGEABLE   65		/* KSM may merge identical pages */
 #define MADV_UNMERGEABLE 66		/* KSM may not merge identical pages */
 
-- 
1.9.1

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#1293256 — [PATCH 3.19.y-ckt 038/128] tools/net: Use include/uapi with __EXPORTED_HEADERS__

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

------------------

From: Kamal Mostafa <kamal@canonical.com>

commit d7475de58575c904818efa369c82e88c6648ce2e upstream.

Use the local uapi headers to keep in sync with "recently" added #define's
(e.g. SKF_AD_VLAN_TPID).  Refactored CFLAGS, and bpf_asm doesn't need -I.

Fixes: 3f356385e8a4 ("filter: bpf_asm: add minimal bpf asm tool")
Acked-by: Daniel Borkmann <daniel@iogearbox.net>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Kamal Mostafa <kamal@canonical.com>
---
 tools/net/Makefile | 7 ++++---
 1 file changed, 4 insertions(+), 3 deletions(-)

diff --git a/tools/net/Makefile b/tools/net/Makefile
index ee577ea..ddf8880 100644
--- a/tools/net/Makefile
+++ b/tools/net/Makefile
@@ -4,6 +4,9 @@ CC = gcc
 LEX = flex
 YACC = bison
 
+CFLAGS += -Wall -O2
+CFLAGS += -D__EXPORTED_HEADERS__ -I../../include/uapi -I../../include
+
 %.yacc.c: %.y
 	$(YACC) -o $@ -d $<
 
@@ -12,15 +15,13 @@ YACC = bison
 
 all : bpf_jit_disasm bpf_dbg bpf_asm
 
-bpf_jit_disasm : CFLAGS = -Wall -O2 -DPACKAGE='bpf_jit_disasm'
+bpf_jit_disasm : CFLAGS += -DPACKAGE='bpf_jit_disasm'
 bpf_jit_disasm : LDLIBS = -lopcodes -lbfd -ldl
 bpf_jit_disasm : bpf_jit_disasm.o
 
-bpf_dbg : CFLAGS = -Wall -O2
 bpf_dbg : LDLIBS = -lreadline
 bpf_dbg : bpf_dbg.o
 
-bpf_asm : CFLAGS = -Wall -O2 -I.
 bpf_asm : LDLIBS =
 bpf_asm : bpf_asm.o bpf_exp.yacc.o bpf_exp.lex.o
 bpf_exp.lex.o : bpf_exp.yacc.c
-- 
1.9.1

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#1293257 — [PATCH 3.19.y-ckt 021/128] drm/radeon: unconditionally set sysfs_initialized

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

------------------

From: Alex Deucher <alexander.deucher@amd.com>

commit 24dd2f64c5a877392925202321c7c2c46c2b0ddf upstream.

Avoids spew on resume for systems where sysfs may
fail even on init.

bug:
https://bugzilla.kernel.org/show_bug.cgi?id=106851

Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Kamal Mostafa <kamal@canonical.com>
---
 drivers/gpu/drm/radeon/radeon_pm.c | 3 +--
 1 file changed, 1 insertion(+), 2 deletions(-)

diff --git a/drivers/gpu/drm/radeon/radeon_pm.c b/drivers/gpu/drm/radeon/radeon_pm.c
index fa537c0..5fc27e9 100644
--- a/drivers/gpu/drm/radeon/radeon_pm.c
+++ b/drivers/gpu/drm/radeon/radeon_pm.c
@@ -1404,8 +1404,7 @@ int radeon_pm_late_init(struct radeon_device *rdev)
 				ret = device_create_file(rdev->dev, &dev_attr_power_method);
 				if (ret)
 					DRM_ERROR("failed to create device file for power method\n");
-				if (!ret)
-					rdev->pm.sysfs_initialized = true;
+				rdev->pm.sysfs_initialized = true;
 			}
 
 			mutex_lock(&rdev->pm.mutex);
-- 
1.9.1

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#1293258 — [PATCH 3.19.y-ckt 049/128] macvlan: fix leak in macvlan_handle_frame

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

------------------

From: Sabrina Dubroca <sd@queasysnail.net>

commit e639b8d8a7a728f0b05ef2df6cb6b45dc3d4e556 upstream.

Reset pskb in macvlan_handle_frame in case skb_share_check returned a
clone.

Fixes: 8a4eb5734e8d ("net: introduce rx_handler results and logic around that")
Signed-off-by: Sabrina Dubroca <sd@queasysnail.net>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Kamal Mostafa <kamal@canonical.com>
---
 drivers/net/macvlan.c | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/drivers/net/macvlan.c b/drivers/net/macvlan.c
index 612e073..1d1511c 100644
--- a/drivers/net/macvlan.c
+++ b/drivers/net/macvlan.c
@@ -415,6 +415,7 @@ static rx_handler_result_t macvlan_handle_frame(struct sk_buff **pskb)
 		skb = ip_check_defrag(skb, IP_DEFRAG_MACVLAN);
 		if (!skb)
 			return RX_HANDLER_CONSUMED;
+		*pskb = skb;
 		eth = eth_hdr(skb);
 		macvlan_forward_source(skb, port, eth->h_source);
 		src = macvlan_hash_lookup(port, eth->h_source);
@@ -456,6 +457,7 @@ static rx_handler_result_t macvlan_handle_frame(struct sk_buff **pskb)
 		goto out;
 	}
 
+	*pskb = skb;
 	skb->dev = dev;
 	skb->pkt_type = PACKET_HOST;
 
-- 
1.9.1

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#1293260 — [PATCH 3.19.y-ckt 050/128] ALSA: usb-audio: add packet size quirk for the Medeli DD305

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

------------------

From: Clemens Ladisch <clemens@ladisch.de>

commit 98d362becb6621bebdda7ed0eac7ad7ec6c37898 upstream.

Signed-off-by: Clemens Ladisch <clemens@ladisch.de>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
Signed-off-by: Kamal Mostafa <kamal@canonical.com>
---
 sound/usb/midi.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/sound/usb/midi.c b/sound/usb/midi.c
index 5bfb695..f5bcacc 100644
--- a/sound/usb/midi.c
+++ b/sound/usb/midi.c
@@ -1341,6 +1341,7 @@ static int snd_usbmidi_out_endpoint_create(struct snd_usb_midi *umidi,
 		 * Various chips declare a packet size larger than 4 bytes, but
 		 * do not actually work with larger packets:
 		 */
+	case USB_ID(0x0a67, 0x5011): /* Medeli DD305 */
 	case USB_ID(0x0a92, 0x1020): /* ESI M4U */
 	case USB_ID(0x1430, 0x474b): /* RedOctane GH MIDI INTERFACE */
 	case USB_ID(0x15ca, 0x0101): /* Textech USB Midi Cable */
-- 
1.9.1

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#1293261 — [PATCH 3.19.y-ckt 037/128] mmc: remove bondage between REQ_META and reliable write

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

------------------

From: Luca Porzio <lporzio@micron.com>

commit d3df0465db00cf4ed9f90d0bfc3b827d32b9c796 upstream.

Anytime a write operation is performed with Reliable Write flag enabled,
the eMMC device is enforced to bypass the cache and do a write to the
underling NVM device by Jedec specification; this causes a performance
penalty since write operations can't be optimized by the device cache.

In our tests, we replayed a typical mobile daily trace pattern and found
~9% overall time reduction in trace replay by using this patch. Also the
write ops within 4KB~64KB chunk size range get a 40~60% performance
improvement by using the patch (as this range of write chunks are the ones
affected by REQ_META).

This patch has been discussed in the Mobile & Embedded Linux Storage Forum
and it's the results of feedbacks from many people. We also checked with
fsdevl and f2fs mailing list developers that this change in the usage of
REQ_META is not affecting FS behavior and we got positive feedbacks.
Reporting here the feedbacks:
http://comments.gmane.org/gmane.linux.file-systems/97219
http://thread.gmane.org/gmane.linux.file-systems.f2fs/3178/focus=3183

Signed-off-by: Bruce Ford <bford@micron.com>
Signed-off-by: Luca Porzio <lporzio@micron.com>
Fixes: ce39f9d17c14 ("mmc: support packed write command for eMMC4.5 devices")
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
Signed-off-by: Kamal Mostafa <kamal@canonical.com>
---
 drivers/mmc/card/block.c | 11 +++--------
 1 file changed, 3 insertions(+), 8 deletions(-)

diff --git a/drivers/mmc/card/block.c b/drivers/mmc/card/block.c
index 28fb2ed..d1e2d3b 100644
--- a/drivers/mmc/card/block.c
+++ b/drivers/mmc/card/block.c
@@ -62,8 +62,7 @@ MODULE_ALIAS("mmc:block");
 #define MMC_SANITIZE_REQ_TIMEOUT 240000
 #define MMC_EXTRACT_INDEX_FROM_ARG(x) ((x & 0x00FF0000) >> 16)
 
-#define mmc_req_rel_wr(req)	(((req->cmd_flags & REQ_FUA) || \
-				  (req->cmd_flags & REQ_META)) && \
+#define mmc_req_rel_wr(req)	((req->cmd_flags & REQ_FUA) && \
 				  (rq_data_dir(req) == WRITE))
 #define PACKED_CMD_VER	0x01
 #define PACKED_CMD_WR	0x02
@@ -1367,13 +1366,9 @@ static void mmc_blk_rw_rq_prep(struct mmc_queue_req *mqrq,
 
 	/*
 	 * Reliable writes are used to implement Forced Unit Access and
-	 * REQ_META accesses, and are supported only on MMCs.
-	 *
-	 * XXX: this really needs a good explanation of why REQ_META
-	 * is treated special.
+	 * are supported only on MMCs.
 	 */
-	bool do_rel_wr = ((req->cmd_flags & REQ_FUA) ||
-			  (req->cmd_flags & REQ_META)) &&
+	bool do_rel_wr = (req->cmd_flags & REQ_FUA) &&
 		(rq_data_dir(req) == WRITE) &&
 		(md->flags & MMC_BLK_REL_WR);
 
-- 
1.9.1

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