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[4.2.y-ckt stable] Linux 4.2.8-ckt3 stable review

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  [4.2.y-ckt stable] Linux 4.2.8-ckt3 stable review Kamal Mostafa <kamal@canonical.com> - 2016-01-27 21:40 +0100
    [PATCH 4.2.y-ckt 051/268] udf: limit the maximum number of indirect extents in a row Kamal Mostafa <kamal@canonical.com> - 2016-01-27 21:40 +0100
    [PATCH 4.2.y-ckt 002/268] ovl: allow zero size xattr Kamal Mostafa <kamal@canonical.com> - 2016-01-27 21:40 +0100
    [PATCH 4.2.y-ckt 001/268] drm/nouveau/nv46: Change mc subdev oclass from nv44 to nv4c Kamal Mostafa <kamal@canonical.com> - 2016-01-27 21:40 +0100
    [PATCH 4.2.y-ckt 147/268] ALSA: hda - Fix bass pin fixup for ASUS N550JX Kamal Mostafa <kamal@canonical.com> - 2016-01-27 21:40 +0100
    [PATCH 4.2.y-ckt 057/268] Thermal: do thermal zone update after a cooling device registered Kamal Mostafa <kamal@canonical.com> - 2016-01-27 21:40 +0100
    [PATCH 4.2.y-ckt 140/268] ACPI / video: Add disable_backlight_sysfs_if quirk for the Toshiba Satellite R830 Kamal Mostafa <kamal@canonical.com> - 2016-01-27 21:40 +0100
    [PATCH 4.2.y-ckt 127/268] sparc64: fix incorrect sign extension in sys_sparc64_personality Kamal Mostafa <kamal@canonical.com> - 2016-01-27 21:40 +0100
    [PATCH 4.2.y-ckt 238/268] batman-adv: Avoid recursive call_rcu for batadv_bla_claim Kamal Mostafa <kamal@canonical.com> - 2016-01-27 21:50 +0100
    [PATCH 4.2.y-ckt 257/268] unix: properly account for FDs passed over unix sockets Kamal Mostafa <kamal@canonical.com> - 2016-01-27 21:50 +0100
    [PATCH 4.2.y-ckt 243/268] batman-adv: Drop immediate orig_node free function Kamal Mostafa <kamal@canonical.com> - 2016-01-27 21:50 +0100
    [PATCH 4.2.y-ckt 259/268] tcp_yeah: don't set ssthresh below 2 Kamal Mostafa <kamal@canonical.com> - 2016-01-27 21:50 +0100
    [PATCH 4.2.y-ckt 208/268] Drivers: hv: utils: use memdup_user in hvt_op_write Kamal Mostafa <kamal@canonical.com> - 2016-01-27 21:50 +0100
    [PATCH 4.2.y-ckt 256/268] af_unix: Fix splice-bind deadlock Kamal Mostafa <kamal@canonical.com> - 2016-01-27 21:50 +0100
    [PATCH 4.2.y-ckt 263/268] phonet: properly unshare skbs in phonet_rcv() Kamal Mostafa <kamal@canonical.com> - 2016-01-27 21:50 +0100
    [PATCH 4.2.y-ckt 203/268] mtd: nand: fix ONFI parameter page layout Kamal Mostafa <kamal@canonical.com> - 2016-01-27 21:50 +0100
    [PATCH 4.2.y-ckt 264/268] net: bpf: reject invalid shifts Kamal Mostafa <kamal@canonical.com> - 2016-01-27 21:50 +0100
    [PATCH 4.2.y-ckt 246/268] team: Replace rcu_read_lock with a mutex in team_vlan_rx_kill_vid Kamal Mostafa <kamal@canonical.com> - 2016-01-27 21:50 +0100
    [PATCH 4.2.y-ckt 253/268] net: cdc_ncm: avoid changing RX/TX buffers on MTU changes Kamal Mostafa <kamal@canonical.com> - 2016-01-27 21:50 +0100
    [PATCH 4.2.y-ckt 240/268] batman-adv: Drop immediate batadv_orig_ifinfo free function Kamal Mostafa <kamal@canonical.com> - 2016-01-27 21:50 +0100
    [PATCH 4.2.y-ckt 242/268] batman-adv: Drop immediate neigh_ifinfo free function Kamal Mostafa <kamal@canonical.com> - 2016-01-27 21:50 +0100
    [PATCH 4.2.y-ckt 219/268] perf/x86: Fix filter_events() bug with event mappings Kamal Mostafa <kamal@canonical.com> - 2016-01-27 21:50 +0100
    [PATCH 4.2.y-ckt 262/268] net: preserve IP control block during GSO segmentation Kamal Mostafa <kamal@canonical.com> - 2016-01-27 21:50 +0100
    [PATCH 4.2.y-ckt 245/268] ARM: dts: armadillo800eva Correct extal1 frequency to 24 MHz Kamal Mostafa <kamal@canonical.com> - 2016-01-27 21:50 +0100
    [PATCH 4.2.y-ckt 266/268] xfrm: dst_entries_init() per-net dst_ops Kamal Mostafa <kamal@canonical.com> - 2016-01-27 21:50 +0100
    [PATCH 4.2.y-ckt 268/268] ipv6: update skb->csum when CE mark is propagated Kamal Mostafa <kamal@canonical.com> - 2016-01-27 21:50 +0100
    [PATCH 4.2.y-ckt 254/268] sctp: sctp should release assoc when sctp_make_abort_user return NULL in sctp_close Kamal Mostafa <kamal@canonical.com> - 2016-01-27 21:50 +0100
    [PATCH 4.2.y-ckt 248/268] IB/mlx4: Initialize hop_limit when creating address handle Kamal Mostafa <kamal@canonical.com> - 2016-01-27 21:50 +0100
    [PATCH 4.2.y-ckt 255/268] connector: bump skb->users before callback invocation Kamal Mostafa <kamal@canonical.com> - 2016-01-27 21:50 +0100
    [PATCH 4.2.y-ckt 234/268] include/linux/memblock.h: fix ordering of 'flags' argument in comments Kamal Mostafa <kamal@canonical.com> - 2016-01-27 21:50 +0100
    [PATCH 4.2.y-ckt 251/268] NFS: Ensure we revalidate attributes before using execute_ok() Kamal Mostafa <kamal@canonical.com> - 2016-01-27 21:50 +0100
    [PATCH 4.2.y-ckt 202/268] ASoC: tegra_alc5632: check return value Kamal Mostafa <kamal@canonical.com> - 2016-01-27 21:50 +0100
    [PATCH 4.2.y-ckt 250/268] NFSv4: Don't perform cached access checks before we've OPENed the file Kamal Mostafa <kamal@canonical.com> - 2016-01-27 21:50 +0100
    [PATCH 4.2.y-ckt 258/268] bridge: Only call /sbin/bridge-stp for the initial network namespace Kamal Mostafa <kamal@canonical.com> - 2016-01-27 21:50 +0100
    [PATCH 4.2.y-ckt 247/268] mmc: debugfs: correct wrong voltage value Kamal Mostafa <kamal@canonical.com> - 2016-01-27 21:50 +0100
    [PATCH 4.2.y-ckt 261/268] udp: disallow UFO for sockets with SO_NO_CHECK option Kamal Mostafa <kamal@canonical.com> - 2016-01-27 21:50 +0100
    [PATCH 4.2.y-ckt 260/268] sched,cls_flower: set key address type when present Kamal Mostafa <kamal@canonical.com> - 2016-01-27 21:50 +0100
    [PATCH 4.2.y-ckt 265/268] batman-adv: Drop immediate batadv_hard_iface free function Kamal Mostafa <kamal@canonical.com> - 2016-01-27 21:50 +0100
    [PATCH 4.2.y-ckt 236/268] btrfs: initialize the seq counter in struct btrfs_device Kamal Mostafa <kamal@canonical.com> - 2016-01-27 21:50 +0100
    [PATCH 4.2.y-ckt 220/268] perf/x86: fix PEBS issues on Intel Atom/Core2 Kamal Mostafa <kamal@canonical.com> - 2016-01-27 21:50 +0100
    [PATCH 4.2.y-ckt 267/268] vxlan: fix test which detect duplicate vxlan iface Kamal Mostafa <kamal@canonical.com> - 2016-01-27 21:50 +0100
    [PATCH 4.2.y-ckt 249/268] net/mlx4: Remove unused macro Kamal Mostafa <kamal@canonical.com> - 2016-01-27 21:50 +0100
    [PATCH 4.2.y-ckt 244/268] printk: help pr_debug and pr_devel to optimize out arguments Kamal Mostafa <kamal@canonical.com> - 2016-01-27 21:50 +0100
    [PATCH 4.2.y-ckt 252/268] veth: don’t modify ip_summed; doing so treats packets with bad checksums as good. Kamal Mostafa <kamal@canonical.com> - 2016-01-27 21:50 +0100
    [PATCH 4.2.y-ckt 205/268] Revert "ACPI / LPSS: allow to use specific PM domain during ->probe()" Kamal Mostafa <kamal@canonical.com> - 2016-01-27 22:00 +0100
    [PATCH 4.2.y-ckt 214/268] pinctrl: bcm2835: Fix memory leak in error path Kamal Mostafa <kamal@canonical.com> - 2016-01-27 22:00 +0100
    [PATCH 4.2.y-ckt 233/268] vmstat: make vmstat_updater deferrable again and shut down on idle Kamal Mostafa <kamal@canonical.com> - 2016-01-27 22:00 +0100
    [PATCH 4.2.y-ckt 222/268] firmware: actually return NULL on failed request_firmware_nowait() Kamal Mostafa <kamal@canonical.com> - 2016-01-27 22:00 +0100
    [PATCH 4.2.y-ckt 216/268] x86/LDT: Print the real LDT base address Kamal Mostafa <kamal@canonical.com> - 2016-01-27 22:00 +0100
    [PATCH 4.2.y-ckt 213/268] ALSA: fm801: detect FM-only card earlier Kamal Mostafa <kamal@canonical.com> - 2016-01-27 22:00 +0100
    [PATCH 4.2.y-ckt 212/268] ALSA: fm801: propagate TUNER_ONLY bit when autodetected Kamal Mostafa <kamal@canonical.com> - 2016-01-27 22:00 +0100
    [PATCH 4.2.y-ckt 228/268] ipv6: tcp: add rcu locking in tcp_v6_send_synack() Kamal Mostafa <kamal@canonical.com> - 2016-01-27 22:00 +0100
    [PATCH 4.2.y-ckt 225/268] m68k/atari, m68k/sun3: Fix SCSI platform device registration when driver is modular Kamal Mostafa <kamal@canonical.com> - 2016-01-27 22:00 +0100
    [PATCH 4.2.y-ckt 227/268] net: sctp: prevent writes to cookie_hmac_alg from accessing invalid memory Kamal Mostafa <kamal@canonical.com> - 2016-01-27 22:00 +0100
    [PATCH 4.2.y-ckt 211/268] ARM: imx: select SRC for i.MX7 Kamal Mostafa <kamal@canonical.com> - 2016-01-27 22:00 +0100
    [PATCH 4.2.y-ckt 231/268] mmc: sd: limit SD card power limit according to cards capabilities Kamal Mostafa <kamal@canonical.com> - 2016-01-27 22:00 +0100
    [PATCH 4.2.y-ckt 204/268] mac80211: fix mgmt-tx abort cookie and leak Kamal Mostafa <kamal@canonical.com> - 2016-01-27 22:00 +0100
    [PATCH 4.2.y-ckt 221/268] power: test_power: correctly handle empty writes Kamal Mostafa <kamal@canonical.com> - 2016-01-27 22:00 +0100
    [PATCH 4.2.y-ckt 229/268] bonding: Prevent IPv6 link local address on enslaved devices Kamal Mostafa <kamal@canonical.com> - 2016-01-27 22:00 +0100
    [PATCH 4.2.y-ckt 239/268] batman-adv: Avoid recursive call_rcu for batadv_nc_node Kamal Mostafa <kamal@canonical.com> - 2016-01-27 22:00 +0100
    [PATCH 4.2.y-ckt 226/268] um: Fix build error and kconfig for i386 Kamal Mostafa <kamal@canonical.com> - 2016-01-27 22:00 +0100
    [PATCH 4.2.y-ckt 230/268] kbuild: Demote 'sign-compare' warning to W=2 Kamal Mostafa <kamal@canonical.com> - 2016-01-27 22:00 +0100
    [PATCH 4.2.y-ckt 215/268] mmc: sdhci: restore behavior when setting VDD via external regulator Kamal Mostafa <kamal@canonical.com> - 2016-01-27 22:00 +0100
    [PATCH 4.2.y-ckt 209/268] tpm_tis: Use devm_free_irq not free_irq Kamal Mostafa <kamal@canonical.com> - 2016-01-27 22:00 +0100
    [PATCH 4.2.y-ckt 200/268] PCI/MSI: Initialize MSI capability for all architectures Kamal Mostafa <kamal@canonical.com> - 2016-01-27 22:00 +0100
    [PATCH 4.2.y-ckt 223/268] target: Fix a memory leak in target_dev_lba_map_store() Kamal Mostafa <kamal@canonical.com> - 2016-01-27 22:00 +0100
    [PATCH 4.2.y-ckt 235/268] Btrfs: clean up an error code in btrfs_init_space_info() Kamal Mostafa <kamal@canonical.com> - 2016-01-27 22:00 +0100
    [PATCH 4.2.y-ckt 241/268] batman-adv: Drop immediate batadv_neigh_node free function Kamal Mostafa <kamal@canonical.com> - 2016-01-27 22:00 +0100
    [PATCH 4.2.y-ckt 199/268] ASoC: Intel: pass correct parameter in sst_alloc_stream_mrfld() Kamal Mostafa <kamal@canonical.com> - 2016-01-27 22:00 +0100
    [PATCH 4.2.y-ckt 218/268] kconfig: return 'false' instead of 'no' in bool function Kamal Mostafa <kamal@canonical.com> - 2016-01-27 22:00 +0100
    [PATCH 4.2.y-ckt 232/268] net: tcp_memcontrol: properly detect ancestor socket pressure Kamal Mostafa <kamal@canonical.com> - 2016-01-27 22:00 +0100
    [PATCH 4.2.y-ckt 201/268] ath9k_htc: check for underflow in ath9k_htc_rx_msg() Kamal Mostafa <kamal@canonical.com> - 2016-01-27 22:00 +0100
    [PATCH 4.2.y-ckt 237/268] bridge: fix lockdep addr_list_lock false positive splat Kamal Mostafa <kamal@canonical.com> - 2016-01-27 22:00 +0100
    [PATCH 4.2.y-ckt 224/268] phy: micrel: Fix finding PHY properties in MAC node for KSZ9031. Kamal Mostafa <kamal@canonical.com> - 2016-01-27 22:00 +0100
    [PATCH 4.2.y-ckt 217/268] sysrq: Fix warning in sysrq generated crash. Kamal Mostafa <kamal@canonical.com> - 2016-01-27 22:00 +0100
    [PATCH 4.2.y-ckt 195/268] SCSI: initio: remove duplicate module device table Kamal Mostafa <kamal@canonical.com> - 2016-01-27 22:10 +0100
    [PATCH 4.2.y-ckt 189/268] MAINTAINERS: return arch/sh to maintained state, with new maintainers Kamal Mostafa <kamal@canonical.com> - 2016-01-27 22:10 +0100
    [PATCH 4.2.y-ckt 198/268] MAINTAINERS: gpio-brcmstb: Remove stray '>' Kamal Mostafa <kamal@canonical.com> - 2016-01-27 22:10 +0100
    [PATCH 4.2.y-ckt 181/268] prctl: take mmap sem for writing to protect against others Kamal Mostafa <kamal@canonical.com> - 2016-01-27 22:10 +0100
    [PATCH 4.2.y-ckt 184/268] MIPS: Loongson-3: Fix SMP_ASK_C0COUNT IPI handler Kamal Mostafa <kamal@canonical.com> - 2016-01-27 22:10 +0100
    [PATCH 4.2.y-ckt 186/268] ocfs2: NFS hangs in __ocfs2_cluster_lock due to race with ocfs2_unblock_lock Kamal Mostafa <kamal@canonical.com> - 2016-01-27 22:10 +0100
    [PATCH 4.2.y-ckt 185/268] MIPS: hpet: Choose a safe value for the ETIME check Kamal Mostafa <kamal@canonical.com> - 2016-01-27 22:10 +0100
    [PATCH 4.2.y-ckt 188/268] make sure that freeing shmem fast symlinks is RCU-delayed Kamal Mostafa <kamal@canonical.com> - 2016-01-27 22:10 +0100
    [PATCH 4.2.y-ckt 196/268] clk: xgene: Fix divider with non-zero shift value Kamal Mostafa <kamal@canonical.com> - 2016-01-27 22:10 +0100
    [PATCH 4.2.y-ckt 206/268] mtd: nand: denali: add missing nand_release() call in denali_remove() Kamal Mostafa <kamal@canonical.com> - 2016-01-27 22:10 +0100
    [PATCH 4.2.y-ckt 194/268] [media] lirc_imon: do not leave imon_probe() with mutex held Kamal Mostafa <kamal@canonical.com> - 2016-01-27 22:10 +0100
    [PATCH 4.2.y-ckt 190/268] MIPS: Fix some missing CONFIG_CPU_MIPSR6 #ifdefs Kamal Mostafa <kamal@canonical.com> - 2016-01-27 22:10 +0100
    [PATCH 4.2.y-ckt 192/268] drm/i915: On fb alloc failure, unref gem object where it gets refed Kamal Mostafa <kamal@canonical.com> - 2016-01-27 22:10 +0100
    [PATCH 4.2.y-ckt 183/268] libceph: fix ceph_msg_revoke() Kamal Mostafa <kamal@canonical.com> - 2016-01-27 22:10 +0100
    [PATCH 4.2.y-ckt 210/268] ALSA: fm801: explicitly free IRQ line Kamal Mostafa <kamal@canonical.com> - 2016-01-27 22:10 +0100
    [PATCH 4.2.y-ckt 174/268] IB/cm: Fix a recently introduced deadlock Kamal Mostafa <kamal@canonical.com> - 2016-01-27 22:10 +0100
    [PATCH 4.2.y-ckt 175/268] ideapad-laptop: Add Lenovo ideapad Y700-17ISK to no_hw_rfkill dmi list Kamal Mostafa <kamal@canonical.com> - 2016-01-27 22:10 +0100
    [PATCH 4.2.y-ckt 177/268] iscsi-target: Fix potential dead-lock during node acl delete Kamal Mostafa <kamal@canonical.com> - 2016-01-27 22:10 +0100
    [PATCH 4.2.y-ckt 193/268] [media] rc: allow rc modules to be loaded if rc-main is not a module Kamal Mostafa <kamal@canonical.com> - 2016-01-27 22:10 +0100
    [PATCH 4.2.y-ckt 207/268] Drivers: hv: util: catch allocation errors Kamal Mostafa <kamal@canonical.com> - 2016-01-27 22:10 +0100
    [PATCH 4.2.y-ckt 191/268] ideapad-laptop: Add Lenovo Yoga 700 to no_hw_rfkill dmi list Kamal Mostafa <kamal@canonical.com> - 2016-01-27 22:10 +0100
    [PATCH 4.2.y-ckt 182/268] ALSA: timer: Handle disconnection more safely Kamal Mostafa <kamal@canonical.com> - 2016-01-27 22:10 +0100
    [PATCH 4.2.y-ckt 178/268] crypto: algif_skcipher - sendmsg SG marking is off by one Kamal Mostafa <kamal@canonical.com> - 2016-01-27 22:10 +0100
    [PATCH 4.2.y-ckt 187/268] pNFS/flexfiles: Fix an XDR encoding bug in layoutreturn Kamal Mostafa <kamal@canonical.com> - 2016-01-27 22:10 +0100
    [PATCH 4.2.y-ckt 197/268] clk: st: avoid uninitialized variable use Kamal Mostafa <kamal@canonical.com> - 2016-01-27 22:10 +0100
    [PATCH 4.2.y-ckt 166/268] ALSA: control: Avoid kernel warnings from tlv ioctl with numid 0 Kamal Mostafa <kamal@canonical.com> - 2016-01-27 22:20 +0100
    [PATCH 4.2.y-ckt 167/268] ARM: debug-ll: fix BCM63xx entry for multiplatform Kamal Mostafa <kamal@canonical.com> - 2016-01-27 22:20 +0100
    [PATCH 4.2.y-ckt 168/268] xfs: log mount failures don't wait for buffers to be released Kamal Mostafa <kamal@canonical.com> - 2016-01-27 22:20 +0100
    [PATCH 4.2.y-ckt 179/268] ALSA: hda - Flush the pending probe work at remove Kamal Mostafa <kamal@canonical.com> - 2016-01-27 22:20 +0100
    [PATCH 4.2.y-ckt 108/268] x86/reboot/quirks: Add iMac10,1 to pci_reboot_dmi_table[] Kamal Mostafa <kamal@canonical.com> - 2016-01-27 22:20 +0100
    [PATCH 4.2.y-ckt 170/268] crypto: crc32c - Fix crc32c soft dependency Kamal Mostafa <kamal@canonical.com> - 2016-01-27 22:20 +0100
    [PATCH 4.2.y-ckt 173/268] IB/mlx5: Expose correct maximum number of CQE capacity Kamal Mostafa <kamal@canonical.com> - 2016-01-27 22:20 +0100
    [PATCH 4.2.y-ckt 171/268] IB/qib: fix mcast detach when qp not attached Kamal Mostafa <kamal@canonical.com> - 2016-01-27 22:20 +0100
    [PATCH 4.2.y-ckt 169/268] crypto: algif_skcipher - Load TX SG list after waiting Kamal Mostafa <kamal@canonical.com> - 2016-01-27 22:20 +0100
    [PATCH 4.2.y-ckt 121/268] x86/mm: Improve switch_mm() barrier comments Kamal Mostafa <kamal@canonical.com> - 2016-01-27 22:20 +0100
    [PATCH 4.2.y-ckt 161/268] crypto: algif_skcipher - Fix race condition in skcipher_check_key Kamal Mostafa <kamal@canonical.com> - 2016-01-27 22:30 +0100
    [PATCH 4.2.y-ckt 153/268] crypto: hash - Add crypto_ahash_has_setkey Kamal Mostafa <kamal@canonical.com> - 2016-01-27 22:30 +0100
    [PATCH 4.2.y-ckt 164/268] ALSA: pcm: Fix snd_pcm_hw_params struct copy in compat mode Kamal Mostafa <kamal@canonical.com> - 2016-01-27 22:30 +0100
    [PATCH 4.2.y-ckt 139/268] ACPI / video: Add disable_backlight_sysfs_if quirk for the Toshiba Portege R700 Kamal Mostafa <kamal@canonical.com> - 2016-01-27 22:30 +0100
    [PATCH 4.2.y-ckt 136/268] ALSA: timer: Harden slave timer list handling Kamal Mostafa <kamal@canonical.com> - 2016-01-27 22:30 +0100
    [PATCH 4.2.y-ckt 160/268] crypto: algif_hash - Fix race condition in hash_check_key Kamal Mostafa <kamal@canonical.com> - 2016-01-27 22:30 +0100
    [PATCH 4.2.y-ckt 135/268] ALSA: hda - Add fixup for Dell Latitidue E6540 Kamal Mostafa <kamal@canonical.com> - 2016-01-27 22:30 +0100
    [PATCH 4.2.y-ckt 146/268] printk: do cond_resched() between lines while outputting to consoles Kamal Mostafa <kamal@canonical.com> - 2016-01-27 22:30 +0100
    [PATCH 4.2.y-ckt 157/268] crypto: algif_skcipher - Remove custom release parent function Kamal Mostafa <kamal@canonical.com> - 2016-01-27 22:30 +0100
    [PATCH 4.2.y-ckt 154/268] crypto: algif_hash - Require setkey before accept(2) Kamal Mostafa <kamal@canonical.com> - 2016-01-27 22:30 +0100
    [PATCH 4.2.y-ckt 142/268] zram: don't call idr_remove() from zram_remove() Kamal Mostafa <kamal@canonical.com> - 2016-01-27 22:30 +0100
    [PATCH 4.2.y-ckt 138/268] zram: try vmalloc() after kmalloc() Kamal Mostafa <kamal@canonical.com> - 2016-01-27 22:30 +0100
    [PATCH 4.2.y-ckt 145/268] kernel/panic.c: turn off locks debug before releasing console lock Kamal Mostafa <kamal@canonical.com> - 2016-01-27 22:30 +0100
    [PATCH 4.2.y-ckt 149/268] crypto: af_alg - Disallow bind/setkey/... after accept(2) Kamal Mostafa <kamal@canonical.com> - 2016-01-27 22:30 +0100
    [PATCH 4.2.y-ckt 163/268] dmaengine: at_xdmac: fix resume for cyclic transfers Kamal Mostafa <kamal@canonical.com> - 2016-01-27 22:30 +0100
    [PATCH 4.2.y-ckt 162/268] ALSA: hrtimer: Fix stall by hrtimer_cancel() Kamal Mostafa <kamal@canonical.com> - 2016-01-27 22:30 +0100
    [PATCH 4.2.y-ckt 143/268] memcg: only free spare array when readers are done Kamal Mostafa <kamal@canonical.com> - 2016-01-27 22:30 +0100
    [PATCH 4.2.y-ckt 133/268] scripts/bloat-o-meter: fix python3 syntax error Kamal Mostafa <kamal@canonical.com> - 2016-01-27 22:30 +0100
    [PATCH 4.2.y-ckt 141/268] mm: soft-offline: check return value in second __get_any_page() call Kamal Mostafa <kamal@canonical.com> - 2016-01-27 22:30 +0100
    [PATCH 4.2.y-ckt 137/268] zram/zcomp: use GFP_NOIO to allocate streams Kamal Mostafa <kamal@canonical.com> - 2016-01-27 22:30 +0100
    [PATCH 4.2.y-ckt 165/268] ALSA: seq: Fix snd_seq_call_port_info_ioctl in compat mode Kamal Mostafa <kamal@canonical.com> - 2016-01-27 22:30 +0100
    [PATCH 4.2.y-ckt 158/268] crypto: af_alg - Forbid bind(2) when nokey child sockets are present Kamal Mostafa <kamal@canonical.com> - 2016-01-27 22:30 +0100
    [PATCH 4.2.y-ckt 152/268] crypto: algif_skcipher - Add nokey compatibility path Kamal Mostafa <kamal@canonical.com> - 2016-01-27 22:30 +0100
    [PATCH 4.2.y-ckt 144/268] panic: release stale console lock to always get the logbuf printed out Kamal Mostafa <kamal@canonical.com> - 2016-01-27 22:30 +0100
    [PATCH 4.2.y-ckt 148/268] crypto: algif_skcipher - Require setkey before accept(2) Kamal Mostafa <kamal@canonical.com> - 2016-01-27 22:30 +0100
    [PATCH 4.2.y-ckt 101/268] x86/mm: Add barriers and document switch_mm()-vs-flush synchronization Kamal Mostafa <kamal@canonical.com> - 2016-01-27 22:30 +0100
    [PATCH 4.2.y-ckt 150/268] crypto: af_alg - Fix socket double-free when accept fails Kamal Mostafa <kamal@canonical.com> - 2016-01-27 22:30 +0100
    [PATCH 4.2.y-ckt 156/268] crypto: algif_hash - Remove custom release parent function Kamal Mostafa <kamal@canonical.com> - 2016-01-27 22:30 +0100
    [PATCH 4.2.y-ckt 155/268] crypto: af_alg - Allow af_af_alg_release_parent to be called on nokey path Kamal Mostafa <kamal@canonical.com> - 2016-01-27 22:30 +0100
    [PATCH 4.2.y-ckt 151/268] crypto: af_alg - Add nokey compatibility path Kamal Mostafa <kamal@canonical.com> - 2016-01-27 22:30 +0100
    [PATCH 4.2.y-ckt 134/268] ocfs2/dlm: ignore cleaning the migration mle that is inuse Kamal Mostafa <kamal@canonical.com> - 2016-01-27 22:30 +0100
    [PATCH 4.2.y-ckt 130/268] cifs_dbg() outputs an uninitialized buffer in cifs_readdir() Kamal Mostafa <kamal@canonical.com> - 2016-01-27 22:30 +0100
    [PATCH 4.2.y-ckt 104/268] xfs: inode recovery readahead can race with inode buffer creation Kamal Mostafa <kamal@canonical.com> - 2016-01-27 22:40 +0100
    [PATCH 4.2.y-ckt 119/268] drm/i915: Restore inhibiting the load of the default context Kamal Mostafa <kamal@canonical.com> - 2016-01-27 22:40 +0100
    [PATCH 4.2.y-ckt 110/268] ALSA: seq: Fix race at timer setup and close Kamal Mostafa <kamal@canonical.com> - 2016-01-27 22:40 +0100
    [PATCH 4.2.y-ckt 111/268] virtio_balloon: fix race by fill and leak Kamal Mostafa <kamal@canonical.com> - 2016-01-27 22:40 +0100
    [PATCH 4.2.y-ckt 113/268] ALSA: hda - Fix white noise on Dell Latitude E5550 Kamal Mostafa <kamal@canonical.com> - 2016-01-27 22:40 +0100
    [PATCH 4.2.y-ckt 126/268] ALSA: timer: Fix race among timer ioctls Kamal Mostafa <kamal@canonical.com> - 2016-01-27 22:40 +0100
    [PATCH 4.2.y-ckt 129/268] cifs: fix race between call_async() and reconnect() Kamal Mostafa <kamal@canonical.com> - 2016-01-27 22:40 +0100
    [PATCH 4.2.y-ckt 099/268] ALSA: usb: Add native DSD support for Oppo HA-1 Kamal Mostafa <kamal@canonical.com> - 2016-01-27 22:40 +0100
    [PATCH 4.2.y-ckt 114/268] parisc: Fix __ARCH_SI_PREAMBLE_SIZE Kamal Mostafa <kamal@canonical.com> - 2016-01-27 22:40 +0100
    [PATCH 4.2.y-ckt 098/268] drm/nouveau/kms: take mode_config mutex in connector hotplug path Kamal Mostafa <kamal@canonical.com> - 2016-01-27 22:40 +0100
    [PATCH 4.2.y-ckt 116/268] powerpc/module: Handle R_PPC64_ENTRY relocations Kamal Mostafa <kamal@canonical.com> - 2016-01-27 22:40 +0100
    [PATCH 4.2.y-ckt 118/268] ALSA: usb-audio: Fix mixer ctl regression of Native Instrument devices Kamal Mostafa <kamal@canonical.com> - 2016-01-27 22:40 +0100
    [PATCH 4.2.y-ckt 100/268] ALSA: hda - Fixup inverted internal mic for Lenovo E50-80 Kamal Mostafa <kamal@canonical.com> - 2016-01-27 22:40 +0100
    [PATCH 4.2.y-ckt 117/268] ALSA: hda - fix the headset mic detection problem for a Dell laptop Kamal Mostafa <kamal@canonical.com> - 2016-01-27 22:40 +0100
    [PATCH 4.2.y-ckt 123/268] dmaengine: dw: fix cyclic transfer setup Kamal Mostafa <kamal@canonical.com> - 2016-01-27 22:40 +0100
    [PATCH 4.2.y-ckt 128/268] cifs: Ratelimit kernel log messages Kamal Mostafa <kamal@canonical.com> - 2016-01-27 22:40 +0100
    [PATCH 4.2.y-ckt 103/268] s390: fix normalization bug in exception table sorting Kamal Mostafa <kamal@canonical.com> - 2016-01-27 22:40 +0100
    [PATCH 4.2.y-ckt 109/268] ALSA: seq: Fix missing NULL check at remove_events ioctl Kamal Mostafa <kamal@canonical.com> - 2016-01-27 22:40 +0100
    [PATCH 4.2.y-ckt 105/268] xfs: handle dquot buffer readahead in log recovery correctly Kamal Mostafa <kamal@canonical.com> - 2016-01-27 22:40 +0100
    [PATCH 4.2.y-ckt 085/268] drm/dp/mst: fix in MSTB RAD initialization Kamal Mostafa <kamal@canonical.com> - 2016-01-27 22:40 +0100
    [PATCH 4.2.y-ckt 096/268] uml: fix hostfs mknod() Kamal Mostafa <kamal@canonical.com> - 2016-01-27 22:40 +0100
    [PATCH 4.2.y-ckt 131/268] m32r: fix m32104ut_defconfig build fail Kamal Mostafa <kamal@canonical.com> - 2016-01-27 22:40 +0100
    [PATCH 4.2.y-ckt 120/268] drm/i915: intel_hpd_init(): Fix suspend/resume reprobing Kamal Mostafa <kamal@canonical.com> - 2016-01-27 22:40 +0100
    [PATCH 4.2.y-ckt 112/268] virtio_balloon: fix race between migration and ballooning Kamal Mostafa <kamal@canonical.com> - 2016-01-27 22:40 +0100
    [PATCH 4.2.y-ckt 115/268] scripts/recordmcount.pl: support data in text section on powerpc Kamal Mostafa <kamal@canonical.com> - 2016-01-27 22:40 +0100
    [PATCH 4.2.y-ckt 097/268] uml: flush stdout before forking Kamal Mostafa <kamal@canonical.com> - 2016-01-27 22:40 +0100
    [PATCH 4.2.y-ckt 125/268] mmc: mmci: fix an ages old detection error Kamal Mostafa <kamal@canonical.com> - 2016-01-27 22:40 +0100
    [PATCH 4.2.y-ckt 102/268] x86/boot: Double BOOT_HEAP_SIZE to 64KB Kamal Mostafa <kamal@canonical.com> - 2016-01-27 22:40 +0100
    [PATCH 4.2.y-ckt 106/268] clocksource/drivers/vt8500: Increase the minimum delta Kamal Mostafa <kamal@canonical.com> - 2016-01-27 22:40 +0100
    [PATCH 4.2.y-ckt 124/268] dmaengine: dw: fix cyclic transfer callbacks Kamal Mostafa <kamal@canonical.com> - 2016-01-27 22:40 +0100
    [PATCH 4.2.y-ckt 072/268] bcache: fix a leak in bch_cached_dev_run() Kamal Mostafa <kamal@canonical.com> - 2016-01-27 22:50 +0100
    [PATCH 4.2.y-ckt 063/268] rtlwifi: rtl8192de: Fix incorrect module parameter descriptions Kamal Mostafa <kamal@canonical.com> - 2016-01-27 22:50 +0100
    [PATCH 4.2.y-ckt 077/268] wlcore/wl12xx: spi: fix NULL pointer dereference (Oops) Kamal Mostafa <kamal@canonical.com> - 2016-01-27 22:50 +0100
    [PATCH 4.2.y-ckt 080/268] x86/xen: don't reset vcpu_info on a cancelled suspend Kamal Mostafa <kamal@canonical.com> - 2016-01-27 22:50 +0100
    [PATCH 4.2.y-ckt 067/268] NFS: Fix attribute cache revalidation Kamal Mostafa <kamal@canonical.com> - 2016-01-27 22:50 +0100
    [PATCH 4.2.y-ckt 070/268] bcache: Add a cond_resched() call to gc Kamal Mostafa <kamal@canonical.com> - 2016-01-27 22:50 +0100
    [PATCH 4.2.y-ckt 060/268] rtlwifi: rtl8723ae: Fix initialization of module parameters Kamal Mostafa <kamal@canonical.com> - 2016-01-27 22:50 +0100
    [PATCH 4.2.y-ckt 066/268] rtlwifi: rtl8192cu: Add missing parameter setup Kamal Mostafa <kamal@canonical.com> - 2016-01-27 22:50 +0100
    [PATCH 4.2.y-ckt 088/268] PCI: host: Mark PCIe/PCI (MSI) IRQ cascade handlers as IRQF_NO_THREAD Kamal Mostafa <kamal@canonical.com> - 2016-01-27 22:50 +0100
    [PATCH 4.2.y-ckt 074/268] bcache: allows use of register in udev to avoid "device_busy" error. Kamal Mostafa <kamal@canonical.com> - 2016-01-27 22:50 +0100
    [PATCH 4.2.y-ckt 071/268] bcache: clear BCACHE_DEV_UNLINK_DONE flag when attaching a backing device Kamal Mostafa <kamal@canonical.com> - 2016-01-27 22:50 +0100
    [PATCH 4.2.y-ckt 093/268] scsi: add Synology to 1024 sector blacklist Kamal Mostafa <kamal@canonical.com> - 2016-01-27 22:50 +0100
    [PATCH 4.2.y-ckt 083/268] drm/dp/mst: process broadcast messages correctly Kamal Mostafa <kamal@canonical.com> - 2016-01-27 22:50 +0100
    [PATCH 4.2.y-ckt 082/268] udf: Check output buffer length when converting name to CS0 Kamal Mostafa <kamal@canonical.com> - 2016-01-27 22:50 +0100
    [PATCH 4.2.y-ckt 089/268] btrfs: handle invalid num_stripes in sys_array Kamal Mostafa <kamal@canonical.com> - 2016-01-27 22:50 +0100
    [PATCH 4.2.y-ckt 092/268] locks: fix unlock when fcntl_setlk races with a close Kamal Mostafa <kamal@canonical.com> - 2016-01-27 22:50 +0100
    [PATCH 4.2.y-ckt 062/268] rtlwifi: rtl8188ee: Fix module parameter initialization Kamal Mostafa <kamal@canonical.com> - 2016-01-27 22:50 +0100
    [PATCH 4.2.y-ckt 078/268] Input: i8042 - add Fujitsu Lifebook U745 to the nomux list Kamal Mostafa <kamal@canonical.com> - 2016-01-27 22:50 +0100
    [PATCH 4.2.y-ckt 061/268] rtlwifi: rtl8821ae: Fix errors in parameter initialization Kamal Mostafa <kamal@canonical.com> - 2016-01-27 22:50 +0100
    [PATCH 4.2.y-ckt 075/268] bcache: prevent crash on changing writeback_running Kamal Mostafa <kamal@canonical.com> - 2016-01-27 22:50 +0100
    [PATCH 4.2.y-ckt 064/268] rtlwifi: rtl8192se: Fix module parameter initialization Kamal Mostafa <kamal@canonical.com> - 2016-01-27 22:50 +0100
    [PATCH 4.2.y-ckt 084/268] drm/dp/mst: always send reply for UP request Kamal Mostafa <kamal@canonical.com> - 2016-01-27 22:50 +0100
    [PATCH 4.2.y-ckt 079/268] libxfs: pack the agfl header structure so XFS_AGFL_SIZE is correct Kamal Mostafa <kamal@canonical.com> - 2016-01-27 22:50 +0100
    [PATCH 4.2.y-ckt 076/268] bcache: Change refill_dirty() to always scan entire disk if necessary Kamal Mostafa <kamal@canonical.com> - 2016-01-27 22:50 +0100
    [PATCH 4.2.y-ckt 095/268] dm snapshot: fix hung bios when copy error occurs Kamal Mostafa <kamal@canonical.com> - 2016-01-27 22:50 +0100
    [PATCH 4.2.y-ckt 094/268] ASoC: compress: Fix compress device direction check Kamal Mostafa <kamal@canonical.com> - 2016-01-27 22:50 +0100
    [PATCH 4.2.y-ckt 065/268] rtlwifi: rtl8192ce: Fix handling of module parameters Kamal Mostafa <kamal@canonical.com> - 2016-01-27 22:50 +0100
    [PATCH 4.2.y-ckt 081/268] udf: Prevent buffer overrun with multi-byte characters Kamal Mostafa <kamal@canonical.com> - 2016-01-27 22:50 +0100
    [PATCH 4.2.y-ckt 069/268] bcache: fix a livelock when we cause a huge number of cache misses Kamal Mostafa <kamal@canonical.com> - 2016-01-27 22:50 +0100
    [PATCH 4.2.y-ckt 059/268] rtlwifi: rtl8723be: Fix module parameter initialization Kamal Mostafa <kamal@canonical.com> - 2016-01-27 22:50 +0100
    [PATCH 4.2.y-ckt 090/268] iwlwifi: update and fix 7265 series PCI IDs Kamal Mostafa <kamal@canonical.com> - 2016-01-27 22:50 +0100
    [PATCH 4.2.y-ckt 091/268] iwlwifi: pcie: properly configure the debug buffer size for 8000 Kamal Mostafa <kamal@canonical.com> - 2016-01-27 22:50 +0100
    [PATCH 4.2.y-ckt 049/268] mmc: sdhci: Fix sdhci_runtime_pm_bus_on/off() Kamal Mostafa <kamal@canonical.com> - 2016-01-27 23:00 +0100
    [PATCH 4.2.y-ckt 058/268] posix-clock: Fix return code on the poll method's error path Kamal Mostafa <kamal@canonical.com> - 2016-01-27 23:00 +0100
    [PATCH 4.2.y-ckt 024/268] ovl: setattr: check permissions before copy-up Kamal Mostafa <kamal@canonical.com> - 2016-01-27 23:00 +0100
    [PATCH 4.2.y-ckt 043/268] drm/amdgpu: Fix off-by-one errors in amdgpu_vm_bo_map Kamal Mostafa <kamal@canonical.com> - 2016-01-27 23:00 +0100
    [PATCH 4.2.y-ckt 045/268] mmc: mmc: Fix incorrect use of driver strength switching HS200 and HS400 Kamal Mostafa <kamal@canonical.com> - 2016-01-27 23:00 +0100
    [PATCH 4.2.y-ckt 036/268] dm thin: fix race condition when destroying thin pool workqueue Kamal Mostafa <kamal@canonical.com> - 2016-01-27 23:00 +0100
    [PATCH 4.2.y-ckt 022/268] rtlwifi: fix memory leak for USB device Kamal Mostafa <kamal@canonical.com> - 2016-01-27 23:00 +0100
    [PATCH 4.2.y-ckt 044/268] drm/radeon: clean up fujitsu quirks Kamal Mostafa <kamal@canonical.com> - 2016-01-27 23:00 +0100
    [PATCH 4.2.y-ckt 038/268] futex: Drop refcount if requeue_pi() acquired the rtmutex Kamal Mostafa <kamal@canonical.com> - 2016-01-27 23:00 +0100
    [PATCH 4.2.y-ckt 041/268] coresight: checking for NULL string in coresight_name_match() Kamal Mostafa <kamal@canonical.com> - 2016-01-27 23:00 +0100
    [PATCH 4.2.y-ckt 028/268] arm64: mm: ensure that the zero page is visible to the page table walker Kamal Mostafa <kamal@canonical.com> - 2016-01-27 23:00 +0100
    [PATCH 4.2.y-ckt 042/268] drm/radeon: Fix off-by-one errors in radeon_vm_bo_set_addr Kamal Mostafa <kamal@canonical.com> - 2016-01-27 23:00 +0100
    [PATCH 4.2.y-ckt 025/268] ovl: check dentry positiveness in ovl_cleanup_whiteouts() Kamal Mostafa <kamal@canonical.com> - 2016-01-27 23:00 +0100
    [PATCH 4.2.y-ckt 033/268] tools: hv: vss: fix the write()'s argument: error -> vss_msg Kamal Mostafa <kamal@canonical.com> - 2016-01-27 23:00 +0100
    [PATCH 4.2.y-ckt 030/268] powerpc: Make {cmp}xchg* and their atomic_ versions fully ordered Kamal Mostafa <kamal@canonical.com> - 2016-01-27 23:00 +0100
    [PATCH 4.2.y-ckt 034/268] clk: exynos: use irqsave version of spin_lock to avoid deadlock with irqs Kamal Mostafa <kamal@canonical.com> - 2016-01-27 23:00 +0100
    [PATCH 4.2.y-ckt 021/268] ext4 crypto: add missing locking for keyring_key access Kamal Mostafa <kamal@canonical.com> - 2016-01-27 23:00 +0100
    [PATCH 4.2.y-ckt 054/268] USB: cp210x: add ID for ELV Marble Sound Board 1 Kamal Mostafa <kamal@canonical.com> - 2016-01-27 23:00 +0100
    [PATCH 4.2.y-ckt 056/268] Thermal: handle thermal zone device properly during system sleep Kamal Mostafa <kamal@canonical.com> - 2016-01-27 23:00 +0100
    [PATCH 4.2.y-ckt 026/268] EDAC, mc_sysfs: Fix freeing bus' name Kamal Mostafa <kamal@canonical.com> - 2016-01-27 23:00 +0100
    [PATCH 4.2.y-ckt 040/268] arm64: kernel: enforce pmuserenr_el0 initialization and restore Kamal Mostafa <kamal@canonical.com> - 2016-01-27 23:00 +0100
    [PATCH 4.2.y-ckt 048/268] mmc: sdhci: Fix DMA descriptor with zero data length Kamal Mostafa <kamal@canonical.com> - 2016-01-27 23:00 +0100
    [PATCH 4.2.y-ckt 023/268] wlcore/wl12xx: spi: fix oops on firmware load Kamal Mostafa <kamal@canonical.com> - 2016-01-27 23:00 +0100
    [PATCH 4.2.y-ckt 050/268] regulator: axp20x: Fix GPIO LDO enable value for AXP22x Kamal Mostafa <kamal@canonical.com> - 2016-01-27 23:00 +0100
    [PATCH 4.2.y-ckt 047/268] mmc: sdio: Fix invalid vdd in voltage switch power cycle Kamal Mostafa <kamal@canonical.com> - 2016-01-27 23:00 +0100
    [PATCH 4.2.y-ckt 053/268] nfs: Fix race in __update_open_stateid() Kamal Mostafa <kamal@canonical.com> - 2016-01-27 23:00 +0100
    [PATCH 4.2.y-ckt 037/268] drm/radeon: Fix "slow" audio over DP on DCE8+ Kamal Mostafa <kamal@canonical.com> - 2016-01-27 23:00 +0100
    [PATCH 4.2.y-ckt 032/268] Drivers: hv: vmbus: Fix a Host signaling bug Kamal Mostafa <kamal@canonical.com> - 2016-01-27 23:00 +0100
    [PATCH 4.2.y-ckt 035/268] iommu/io-pgtable-arm: Ensure we free the final level on teardown Kamal Mostafa <kamal@canonical.com> - 2016-01-27 23:00 +0100
    [PATCH 4.2.y-ckt 046/268] mmc: sdhci-pci: Do not default to 33 Ohm driver strength for Intel SPT Kamal Mostafa <kamal@canonical.com> - 2016-01-27 23:00 +0100
    [PATCH 4.2.y-ckt 039/268] arm64: mdscr_el1: avoid exposing DCC to userspace Kamal Mostafa <kamal@canonical.com> - 2016-01-27 23:00 +0100
    [PATCH 4.2.y-ckt 055/268] Thermal: initialize thermal zone device correctly Kamal Mostafa <kamal@canonical.com> - 2016-01-27 23:00 +0100
    [PATCH 4.2.y-ckt 052/268] [media] rc: sunxi-cir: Initialize the spinlock properly Kamal Mostafa <kamal@canonical.com> - 2016-01-27 23:00 +0100
    [PATCH 4.2.y-ckt 017/268] time: Avoid signed overflow in timekeeping_get_ns() Kamal Mostafa <kamal@canonical.com> - 2016-01-27 23:10 +0100
    [PATCH 4.2.y-ckt 012/268] drm/amdgpu: call hpd_irq_event on resume Kamal Mostafa <kamal@canonical.com> - 2016-01-27 23:10 +0100
    [PATCH 4.2.y-ckt 007/268] [media] si2157: return -EINVAL if firmware blob is too big Kamal Mostafa <kamal@canonical.com> - 2016-01-27 23:10 +0100
    [PATCH 4.2.y-ckt 019/268] Bluetooth: Add support of Toshiba Broadcom based devices Kamal Mostafa <kamal@canonical.com> - 2016-01-27 23:10 +0100
    [PATCH 4.2.y-ckt 016/268] arm64: Clear out any singlestep state on a ptrace detach operation Kamal Mostafa <kamal@canonical.com> - 2016-01-27 23:10 +0100
    [PATCH 4.2.y-ckt 015/268] ARM: mvebu: remove duplicated regulator definition in Armada 388 GP Kamal Mostafa <kamal@canonical.com> - 2016-01-27 23:10 +0100
    [PATCH 4.2.y-ckt 011/268] KVM: x86: correctly print #AC in traces Kamal Mostafa <kamal@canonical.com> - 2016-01-27 23:10 +0100
    [PATCH 4.2.y-ckt 005/268] [media] gspca: ov534/topro: prevent a division by 0 Kamal Mostafa <kamal@canonical.com> - 2016-01-27 23:10 +0100
    [PATCH 4.2.y-ckt 004/268] [media] vb2: fix a regression in poll() behavior for output,streams Kamal Mostafa <kamal@canonical.com> - 2016-01-27 23:10 +0100
    [PATCH 4.2.y-ckt 018/268] ovl: root: copy attr Kamal Mostafa <kamal@canonical.com> - 2016-01-27 23:10 +0100
    [PATCH 4.2.y-ckt 003/268] ovl: use a minimal buffer in ovl_copy_xattr Kamal Mostafa <kamal@canonical.com> - 2016-01-27 23:10 +0100
    [PATCH 4.2.y-ckt 008/268] tools lib traceevent: Fix output of %llu for 64 bit values read on 32 bit machines Kamal Mostafa <kamal@canonical.com> - 2016-01-27 23:10 +0100
    [PATCH 4.2.y-ckt 020/268] ext4 crypto: exit cleanly if ext4_derive_key_aes() fails Kamal Mostafa <kamal@canonical.com> - 2016-01-27 23:10 +0100
    [PATCH 4.2.y-ckt 014/268] xhci: refuse loading if nousb is used Kamal Mostafa <kamal@canonical.com> - 2016-01-27 23:10 +0100
    [PATCH 4.2.y-ckt 006/268] [media] media: dvb-core: Don't force CAN_INVERSION_AUTO in oneshot mode Kamal Mostafa <kamal@canonical.com> - 2016-01-27 23:10 +0100
    [PATCH 4.2.y-ckt 009/268] cxl: use correct operator when writing pcie config space values Kamal Mostafa <kamal@canonical.com> - 2016-01-27 23:10 +0100
    [PATCH 4.2.y-ckt 010/268] KVM: x86: expose MSR_TSC_AUX to userspace Kamal Mostafa <kamal@canonical.com> - 2016-01-27 23:10 +0100

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#1319755 — [PATCH 4.2.y-ckt 242/268] batman-adv: Drop immediate neigh_ifinfo free function

4.2.8-ckt3 -stable review patch.  If anyone has any objections, please let me know.

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

From: Sven Eckelmann <sven@narfation.org>

commit ae3e1e36e3cb6c686a7a2725af20ca86aa46d62a upstream.

It is not allowed to free the memory of an object which is part of a list
which is protected by rcu-read-side-critical sections without making sure
that no other context is accessing the object anymore. This usually happens
by removing the references to this object and then waiting until the rcu
grace period is over and no one (allowedly) accesses it anymore.

But the _now functions ignore this completely. They free the object
directly even when a different context still tries to access it. This has
to be avoided and thus these functions must be removed and all functions
have to use batadv_neigh_ifinfo_free_ref.

Fixes: 89652331c00f ("batman-adv: split tq information in neigh_node struct")
Signed-off-by: Sven Eckelmann <sven@narfation.org>
Signed-off-by: Marek Lindner <mareklindner@neomailbox.ch>
Signed-off-by: Antonio Quartulli <a@unstable.cc>
Signed-off-by: Kamal Mostafa <kamal@canonical.com>
---
 net/batman-adv/originator.c | 34 ++++++++++------------------------
 1 file changed, 10 insertions(+), 24 deletions(-)

diff --git a/net/batman-adv/originator.c b/net/batman-adv/originator.c
index c4dddec..db5eff0 100644
--- a/net/batman-adv/originator.c
+++ b/net/batman-adv/originator.c
@@ -162,42 +162,28 @@ err:
 }
 
 /**
- * batadv_neigh_ifinfo_free_rcu - free the neigh_ifinfo object
- * @rcu: rcu pointer of the neigh_ifinfo object
- */
-static void batadv_neigh_ifinfo_free_rcu(struct rcu_head *rcu)
-{
-	struct batadv_neigh_ifinfo *neigh_ifinfo;
-
-	neigh_ifinfo = container_of(rcu, struct batadv_neigh_ifinfo, rcu);
-
-	if (neigh_ifinfo->if_outgoing != BATADV_IF_DEFAULT)
-		batadv_hardif_free_ref_now(neigh_ifinfo->if_outgoing);
-
-	kfree(neigh_ifinfo);
-}
-
-/**
- * batadv_neigh_ifinfo_free_now - decrement the refcounter and possibly free
- *  the neigh_ifinfo (without rcu callback)
+ * batadv_neigh_ifinfo_release - release neigh_ifinfo from lists and queue for
+ *  free after rcu grace period
  * @neigh_ifinfo: the neigh_ifinfo object to release
  */
 static void
-batadv_neigh_ifinfo_free_ref_now(struct batadv_neigh_ifinfo *neigh_ifinfo)
+batadv_neigh_ifinfo_release(struct batadv_neigh_ifinfo *neigh_ifinfo)
 {
-	if (atomic_dec_and_test(&neigh_ifinfo->refcount))
-		batadv_neigh_ifinfo_free_rcu(&neigh_ifinfo->rcu);
+	if (neigh_ifinfo->if_outgoing != BATADV_IF_DEFAULT)
+		batadv_hardif_free_ref(neigh_ifinfo->if_outgoing);
+
+	kfree_rcu(neigh_ifinfo, rcu);
 }
 
 /**
- * batadv_neigh_ifinfo_free_ref - decrement the refcounter and possibly free
+ * batadv_neigh_ifinfo_free_ref - decrement the refcounter and possibly release
  *  the neigh_ifinfo
  * @neigh_ifinfo: the neigh_ifinfo object to release
  */
 void batadv_neigh_ifinfo_free_ref(struct batadv_neigh_ifinfo *neigh_ifinfo)
 {
 	if (atomic_dec_and_test(&neigh_ifinfo->refcount))
-		call_rcu(&neigh_ifinfo->rcu, batadv_neigh_ifinfo_free_rcu);
+		batadv_neigh_ifinfo_release(neigh_ifinfo);
 }
 
 /**
@@ -216,7 +202,7 @@ static void batadv_neigh_node_free_rcu(struct rcu_head *rcu)
 
 	hlist_for_each_entry_safe(neigh_ifinfo, node_tmp,
 				  &neigh_node->ifinfo_list, list) {
-		batadv_neigh_ifinfo_free_ref_now(neigh_ifinfo);
+		batadv_neigh_ifinfo_free_ref(neigh_ifinfo);
 	}
 
 	if (bao->bat_neigh_free)
-- 
1.9.1

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#1319756 — [PATCH 4.2.y-ckt 219/268] perf/x86: Fix filter_events() bug with event mappings

4.2.8-ckt3 -stable review patch.  If anyone has any objections, please let me know.

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

From: Stephane Eranian <eranian@google.com>

commit 61b87cae6361ea6af161c1ffa549898892707b19 upstream.

This patch fixes a bug in the filter_events() function.

The patch fixes the bug whereby if some mappings did not
exist, e.g., STALLED_CYCLES_FRONTEND, then any event after it
in the attrs array would disappear from the published list of
events in /sys/devices/cpu/events. This could be verified
easily on any system post SNB (which do not publish
STALLED_CYCLES_FRONTEND):

	$ ./perf stat -e cycles,ref-cycles true
	Performance counter stats for 'true':
              1,217,348      cycles
	<not supported>      ref-cycles

The problem is that in filter_events() there is an assumption
that the argument (attrs) is organized in increasing continuous
event indexes related to the event_map(). But if we remove the
non-supported events by shifing the position in the array, then
the lookup x86_pmu.event_map() needs to compensate for it, otherwise
we are looking up the wrong index. This patch corrects this problem
by compensating for the deleted events and with that ref-cycles
reappears (here shown on Haswell):

	$ perf stat -e ref-cycles,cycles true
	Performance counter stats for 'true':
         4,525,910      ref-cycles
         1,064,920      cycles
       0.002943888 seconds time elapsed

Signed-off-by: Stephane Eranian <eranian@google.com>
Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Cc: Arnaldo Carvalho de Melo <acme@redhat.com>
Cc: Jiri Olsa <jolsa@redhat.com>
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: Vince Weaver <vincent.weaver@maine.edu>
Cc: jolsa@kernel.org
Cc: kan.liang@intel.com
Fixes: 8300daa26755 ("perf/x86: Filter out undefined events from sysfs events attribute")
Link: http://lkml.kernel.org/r/1449516805-6637-1-git-send-email-eranian@google.com
Signed-off-by: Ingo Molnar <mingo@kernel.org>
Signed-off-by: Kamal Mostafa <kamal@canonical.com>
---
 arch/x86/kernel/cpu/perf_event.c | 11 ++++++++++-
 1 file changed, 10 insertions(+), 1 deletion(-)

diff --git a/arch/x86/kernel/cpu/perf_event.c b/arch/x86/kernel/cpu/perf_event.c
index 9469dfa..a27d738 100644
--- a/arch/x86/kernel/cpu/perf_event.c
+++ b/arch/x86/kernel/cpu/perf_event.c
@@ -1531,6 +1531,7 @@ static void __init filter_events(struct attribute **attrs)
 {
 	struct device_attribute *d;
 	struct perf_pmu_events_attr *pmu_attr;
+	int offset = 0;
 	int i, j;
 
 	for (i = 0; attrs[i]; i++) {
@@ -1539,7 +1540,7 @@ static void __init filter_events(struct attribute **attrs)
 		/* str trumps id */
 		if (pmu_attr->event_str)
 			continue;
-		if (x86_pmu.event_map(i))
+		if (x86_pmu.event_map(i + offset))
 			continue;
 
 		for (j = i; attrs[j]; j++)
@@ -1547,6 +1548,14 @@ static void __init filter_events(struct attribute **attrs)
 
 		/* Check the shifted attr. */
 		i--;
+
+		/*
+		 * event_map() is index based, the attrs array is organized
+		 * by increasing event index. If we shift the events, then
+		 * we need to compensate for the event_map(), otherwise
+		 * we are looking up the wrong event in the map
+		 */
+		offset++;
 	}
 }
 
-- 
1.9.1

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#1319757 — [PATCH 4.2.y-ckt 262/268] net: preserve IP control block during GSO segmentation

4.2.8-ckt3 -stable review patch.  If anyone has any objections, please let me know.

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

From: Konstantin Khlebnikov <koct9i@gmail.com>

[ Upstream commit 9207f9d45b0ad071baa128e846d7e7ed85016df3 ]

Skb_gso_segment() uses skb control block during segmentation.
This patch adds 32-bytes room for previous control block which
will be copied into all resulting segments.

This patch fixes kernel crash during fragmenting forwarded packets.
Fragmentation requires valid IP CB in skb for clearing ip options.
Also patch removes custom save/restore in ovs code, now it's redundant.

Signed-off-by: Konstantin Khlebnikov <koct9i@gmail.com>
Link: http://lkml.kernel.org/r/CALYGNiP-0MZ-FExV2HutTvE9U-QQtkKSoE--KN=JQE5STYsjAA@mail.gmail.com
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Kamal Mostafa <kamal@canonical.com>
---
 include/linux/skbuff.h     | 3 ++-
 net/core/dev.c             | 5 +++++
 net/ipv4/ip_output.c       | 1 +
 net/openvswitch/datapath.c | 5 +----
 net/xfrm/xfrm_output.c     | 2 ++
 5 files changed, 11 insertions(+), 5 deletions(-)

diff --git a/include/linux/skbuff.h b/include/linux/skbuff.h
index 2751588..8b2a698 100644
--- a/include/linux/skbuff.h
+++ b/include/linux/skbuff.h
@@ -3337,7 +3337,8 @@ struct skb_gso_cb {
 	int	encap_level;
 	__u16	csum_start;
 };
-#define SKB_GSO_CB(skb) ((struct skb_gso_cb *)(skb)->cb)
+#define SKB_SGO_CB_OFFSET	32
+#define SKB_GSO_CB(skb) ((struct skb_gso_cb *)((skb)->cb + SKB_SGO_CB_OFFSET))
 
 static inline int skb_tnl_header_len(const struct sk_buff *inner_skb)
 {
diff --git a/net/core/dev.c b/net/core/dev.c
index a8e4dd4..f1f1dd8 100644
--- a/net/core/dev.c
+++ b/net/core/dev.c
@@ -2512,6 +2512,8 @@ static inline bool skb_needs_check(struct sk_buff *skb, bool tx_path)
  *
  *	It may return NULL if the skb requires no segmentation.  This is
  *	only possible when GSO is used for verifying header integrity.
+ *
+ *	Segmentation preserves SKB_SGO_CB_OFFSET bytes of previous skb cb.
  */
 struct sk_buff *__skb_gso_segment(struct sk_buff *skb,
 				  netdev_features_t features, bool tx_path)
@@ -2526,6 +2528,9 @@ struct sk_buff *__skb_gso_segment(struct sk_buff *skb,
 			return ERR_PTR(err);
 	}
 
+	BUILD_BUG_ON(SKB_SGO_CB_OFFSET +
+		     sizeof(*SKB_GSO_CB(skb)) > sizeof(skb->cb));
+
 	SKB_GSO_CB(skb)->mac_offset = skb_headroom(skb);
 	SKB_GSO_CB(skb)->encap_level = 0;
 
diff --git a/net/ipv4/ip_output.c b/net/ipv4/ip_output.c
index de76e1f..56b5daa 100644
--- a/net/ipv4/ip_output.c
+++ b/net/ipv4/ip_output.c
@@ -240,6 +240,7 @@ static int ip_finish_output_gso(struct sock *sk, struct sk_buff *skb,
 	 * from host network stack.
 	 */
 	features = netif_skb_features(skb);
+	BUILD_BUG_ON(sizeof(*IPCB(skb)) > SKB_SGO_CB_OFFSET);
 	segs = skb_gso_segment(skb, features & ~NETIF_F_GSO_MASK);
 	if (IS_ERR_OR_NULL(segs)) {
 		kfree_skb(skb);
diff --git a/net/openvswitch/datapath.c b/net/openvswitch/datapath.c
index ff332d1..1964ce5 100644
--- a/net/openvswitch/datapath.c
+++ b/net/openvswitch/datapath.c
@@ -336,12 +336,10 @@ static int queue_gso_packets(struct datapath *dp, struct sk_buff *skb,
 	unsigned short gso_type = skb_shinfo(skb)->gso_type;
 	struct sw_flow_key later_key;
 	struct sk_buff *segs, *nskb;
-	struct ovs_skb_cb ovs_cb;
 	int err;
 
-	ovs_cb = *OVS_CB(skb);
+	BUILD_BUG_ON(sizeof(*OVS_CB(skb)) > SKB_SGO_CB_OFFSET);
 	segs = __skb_gso_segment(skb, NETIF_F_SG, false);
-	*OVS_CB(skb) = ovs_cb;
 	if (IS_ERR(segs))
 		return PTR_ERR(segs);
 	if (segs == NULL)
@@ -359,7 +357,6 @@ static int queue_gso_packets(struct datapath *dp, struct sk_buff *skb,
 	/* Queue all of the segments. */
 	skb = segs;
 	do {
-		*OVS_CB(skb) = ovs_cb;
 		if (gso_type & SKB_GSO_UDP && skb != segs)
 			key = &later_key;
 
diff --git a/net/xfrm/xfrm_output.c b/net/xfrm/xfrm_output.c
index 68ada2c..443f78c 100644
--- a/net/xfrm/xfrm_output.c
+++ b/net/xfrm/xfrm_output.c
@@ -165,6 +165,8 @@ static int xfrm_output_gso(struct sock *sk, struct sk_buff *skb)
 {
 	struct sk_buff *segs;
 
+	BUILD_BUG_ON(sizeof(*IPCB(skb)) > SKB_SGO_CB_OFFSET);
+	BUILD_BUG_ON(sizeof(*IP6CB(skb)) > SKB_SGO_CB_OFFSET);
 	segs = skb_gso_segment(skb, 0);
 	kfree_skb(skb);
 	if (IS_ERR(segs))
-- 
1.9.1

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#1319758 — [PATCH 4.2.y-ckt 245/268] ARM: dts: armadillo800eva Correct extal1 frequency to 24 MHz

4.2.8-ckt3 -stable review patch.  If anyone has any objections, please let me know.

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

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

commit c61f30a255550bbfc6b83c1ca720661489cac4c0 upstream.

On r8a7740/armadillo, actual clock rates are ca. 4% lower than reported
by /sys/kernel/debug/clk/clk_summary. Correct the extal1 frequency from
25 MHz to 24 MHz to fix this.

This matches the Armadillo-800 EVA Product Manual, which claims the main
crystal runs at 24 MHz, and the old legacy/reference board code.

Fixes: 25aa7ba3fdfb ("ARM: shmobile: armadillo800eva: Sync DTS")
Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
Signed-off-by: Simon Horman <horms+renesas@verge.net.au>
Signed-off-by: Kamal Mostafa <kamal@canonical.com>
---
 arch/arm/boot/dts/r8a7740-armadillo800eva.dts | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/arch/arm/boot/dts/r8a7740-armadillo800eva.dts b/arch/arm/boot/dts/r8a7740-armadillo800eva.dts
index 2e31d8c..8595b0d 100644
--- a/arch/arm/boot/dts/r8a7740-armadillo800eva.dts
+++ b/arch/arm/boot/dts/r8a7740-armadillo800eva.dts
@@ -180,7 +180,7 @@
 };
 
 &extal1_clk {
-	clock-frequency = <25000000>;
+	clock-frequency = <24000000>;
 };
 &extal2_clk {
 	clock-frequency = <48000000>;
-- 
1.9.1

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#1319759 — [PATCH 4.2.y-ckt 266/268] xfrm: dst_entries_init() per-net dst_ops

4.2.8-ckt3 -stable review patch.  If anyone has any objections, please let me know.

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

From: Dan Streetman <dan.streetman@canonical.com>

[ Upstream commit a8a572a6b5f2a79280d6e302cb3c1cb1fbaeb3e8 ]

Remove the dst_entries_init/destroy calls for xfrm4 and xfrm6 dst_ops
templates; their dst_entries counters will never be used.  Move the
xfrm dst_ops initialization from the common xfrm/xfrm_policy.c to
xfrm4/xfrm4_policy.c and xfrm6/xfrm6_policy.c, and call dst_entries_init
and dst_entries_destroy for each net namespace.

The ipv4 and ipv6 xfrms each create dst_ops template, and perform
dst_entries_init on the templates.  The template values are copied to each
net namespace's xfrm.xfrm*_dst_ops.  The problem there is the dst_ops
pcpuc_entries field is a percpu counter and cannot be used correctly by
simply copying it to another object.

The result of this is a very subtle bug; changes to the dst entries
counter from one net namespace may sometimes get applied to a different
net namespace dst entries counter.  This is because of how the percpu
counter works; it has a main count field as well as a pointer to the
percpu variables.  Each net namespace maintains its own main count
variable, but all point to one set of percpu variables.  When any net
namespace happens to change one of the percpu variables to outside its
small batch range, its count is moved to the net namespace's main count
variable.  So with multiple net namespaces operating concurrently, the
dst_ops entries counter can stray from the actual value that it should
be; if counts are consistently moved from one net namespace to another
(which my testing showed is likely), then one net namespace winds up
with a negative dst_ops count while another winds up with a continually
increasing count, eventually reaching its gc_thresh limit, which causes
all new traffic on the net namespace to fail with -ENOBUFS.

Signed-off-by: Dan Streetman <dan.streetman@canonical.com>
Signed-off-by: Dan Streetman <ddstreet@ieee.org>
Signed-off-by: Steffen Klassert <steffen.klassert@secunet.com>
Signed-off-by: Kamal Mostafa <kamal@canonical.com>
---
 net/ipv4/xfrm4_policy.c | 46 +++++++++++++++++++++++++++++++++---------
 net/ipv6/xfrm6_policy.c | 53 +++++++++++++++++++++++++++++++++++--------------
 net/xfrm/xfrm_policy.c  | 38 -----------------------------------
 3 files changed, 75 insertions(+), 62 deletions(-)

diff --git a/net/ipv4/xfrm4_policy.c b/net/ipv4/xfrm4_policy.c
index bff6974..7852608 100644
--- a/net/ipv4/xfrm4_policy.c
+++ b/net/ipv4/xfrm4_policy.c
@@ -230,7 +230,7 @@ static void xfrm4_dst_ifdown(struct dst_entry *dst, struct net_device *dev,
 	xfrm_dst_ifdown(dst, dev);
 }
 
-static struct dst_ops xfrm4_dst_ops = {
+static struct dst_ops xfrm4_dst_ops_template = {
 	.family =		AF_INET,
 	.gc =			xfrm4_garbage_collect,
 	.update_pmtu =		xfrm4_update_pmtu,
@@ -244,7 +244,7 @@ static struct dst_ops xfrm4_dst_ops = {
 
 static struct xfrm_policy_afinfo xfrm4_policy_afinfo = {
 	.family = 		AF_INET,
-	.dst_ops =		&xfrm4_dst_ops,
+	.dst_ops =		&xfrm4_dst_ops_template,
 	.dst_lookup =		xfrm4_dst_lookup,
 	.get_saddr =		xfrm4_get_saddr,
 	.decode_session =	_decode_session4,
@@ -266,7 +266,7 @@ static struct ctl_table xfrm4_policy_table[] = {
 	{ }
 };
 
-static int __net_init xfrm4_net_init(struct net *net)
+static int __net_init xfrm4_net_sysctl_init(struct net *net)
 {
 	struct ctl_table *table;
 	struct ctl_table_header *hdr;
@@ -294,7 +294,7 @@ err_alloc:
 	return -ENOMEM;
 }
 
-static void __net_exit xfrm4_net_exit(struct net *net)
+static void __net_exit xfrm4_net_sysctl_exit(struct net *net)
 {
 	struct ctl_table *table;
 
@@ -306,12 +306,44 @@ static void __net_exit xfrm4_net_exit(struct net *net)
 	if (!net_eq(net, &init_net))
 		kfree(table);
 }
+#else /* CONFIG_SYSCTL */
+static int inline xfrm4_net_sysctl_init(struct net *net)
+{
+	return 0;
+}
+
+static void inline xfrm4_net_sysctl_exit(struct net *net)
+{
+}
+#endif
+
+static int __net_init xfrm4_net_init(struct net *net)
+{
+	int ret;
+
+	memcpy(&net->xfrm.xfrm4_dst_ops, &xfrm4_dst_ops_template,
+	       sizeof(xfrm4_dst_ops_template));
+	ret = dst_entries_init(&net->xfrm.xfrm4_dst_ops);
+	if (ret)
+		return ret;
+
+	ret = xfrm4_net_sysctl_init(net);
+	if (ret)
+		dst_entries_destroy(&net->xfrm.xfrm4_dst_ops);
+
+	return ret;
+}
+
+static void __net_exit xfrm4_net_exit(struct net *net)
+{
+	xfrm4_net_sysctl_exit(net);
+	dst_entries_destroy(&net->xfrm.xfrm4_dst_ops);
+}
 
 static struct pernet_operations __net_initdata xfrm4_net_ops = {
 	.init	= xfrm4_net_init,
 	.exit	= xfrm4_net_exit,
 };
-#endif
 
 static void __init xfrm4_policy_init(void)
 {
@@ -320,13 +352,9 @@ static void __init xfrm4_policy_init(void)
 
 void __init xfrm4_init(void)
 {
-	dst_entries_init(&xfrm4_dst_ops);
-
 	xfrm4_state_init();
 	xfrm4_policy_init();
 	xfrm4_protocol_init();
-#ifdef CONFIG_SYSCTL
 	register_pernet_subsys(&xfrm4_net_ops);
-#endif
 }
 
diff --git a/net/ipv6/xfrm6_policy.c b/net/ipv6/xfrm6_policy.c
index ed0583c..f4ae5dc 100644
--- a/net/ipv6/xfrm6_policy.c
+++ b/net/ipv6/xfrm6_policy.c
@@ -274,7 +274,7 @@ static void xfrm6_dst_ifdown(struct dst_entry *dst, struct net_device *dev,
 	xfrm_dst_ifdown(dst, dev);
 }
 
-static struct dst_ops xfrm6_dst_ops = {
+static struct dst_ops xfrm6_dst_ops_template = {
 	.family =		AF_INET6,
 	.gc =			xfrm6_garbage_collect,
 	.update_pmtu =		xfrm6_update_pmtu,
@@ -288,7 +288,7 @@ static struct dst_ops xfrm6_dst_ops = {
 
 static struct xfrm_policy_afinfo xfrm6_policy_afinfo = {
 	.family =		AF_INET6,
-	.dst_ops =		&xfrm6_dst_ops,
+	.dst_ops =		&xfrm6_dst_ops_template,
 	.dst_lookup =		xfrm6_dst_lookup,
 	.get_saddr =		xfrm6_get_saddr,
 	.decode_session =	_decode_session6,
@@ -320,7 +320,7 @@ static struct ctl_table xfrm6_policy_table[] = {
 	{ }
 };
 
-static int __net_init xfrm6_net_init(struct net *net)
+static int __net_init xfrm6_net_sysctl_init(struct net *net)
 {
 	struct ctl_table *table;
 	struct ctl_table_header *hdr;
@@ -348,7 +348,7 @@ err_alloc:
 	return -ENOMEM;
 }
 
-static void __net_exit xfrm6_net_exit(struct net *net)
+static void __net_exit xfrm6_net_sysctl_exit(struct net *net)
 {
 	struct ctl_table *table;
 
@@ -360,24 +360,52 @@ static void __net_exit xfrm6_net_exit(struct net *net)
 	if (!net_eq(net, &init_net))
 		kfree(table);
 }
+#else /* CONFIG_SYSCTL */
+static int inline xfrm6_net_sysctl_init(struct net *net)
+{
+	return 0;
+}
+
+static void inline xfrm6_net_sysctl_exit(struct net *net)
+{
+}
+#endif
+
+static int __net_init xfrm6_net_init(struct net *net)
+{
+	int ret;
+
+	memcpy(&net->xfrm.xfrm6_dst_ops, &xfrm6_dst_ops_template,
+	       sizeof(xfrm6_dst_ops_template));
+	ret = dst_entries_init(&net->xfrm.xfrm6_dst_ops);
+	if (ret)
+		return ret;
+
+	ret = xfrm6_net_sysctl_init(net);
+	if (ret)
+		dst_entries_destroy(&net->xfrm.xfrm6_dst_ops);
+
+	return ret;
+}
+
+static void __net_exit xfrm6_net_exit(struct net *net)
+{
+	xfrm6_net_sysctl_exit(net);
+	dst_entries_destroy(&net->xfrm.xfrm6_dst_ops);
+}
 
 static struct pernet_operations xfrm6_net_ops = {
 	.init	= xfrm6_net_init,
 	.exit	= xfrm6_net_exit,
 };
-#endif
 
 int __init xfrm6_init(void)
 {
 	int ret;
 
-	dst_entries_init(&xfrm6_dst_ops);
-
 	ret = xfrm6_policy_init();
-	if (ret) {
-		dst_entries_destroy(&xfrm6_dst_ops);
+	if (ret)
 		goto out;
-	}
 	ret = xfrm6_state_init();
 	if (ret)
 		goto out_policy;
@@ -386,9 +414,7 @@ int __init xfrm6_init(void)
 	if (ret)
 		goto out_state;
 
-#ifdef CONFIG_SYSCTL
 	register_pernet_subsys(&xfrm6_net_ops);
-#endif
 out:
 	return ret;
 out_state:
@@ -400,11 +426,8 @@ out_policy:
 
 void xfrm6_fini(void)
 {
-#ifdef CONFIG_SYSCTL
 	unregister_pernet_subsys(&xfrm6_net_ops);
-#endif
 	xfrm6_protocol_fini();
 	xfrm6_policy_fini();
 	xfrm6_state_fini();
-	dst_entries_destroy(&xfrm6_dst_ops);
 }
diff --git a/net/xfrm/xfrm_policy.c b/net/xfrm/xfrm_policy.c
index 2718184..b5680ad 100644
--- a/net/xfrm/xfrm_policy.c
+++ b/net/xfrm/xfrm_policy.c
@@ -2816,7 +2816,6 @@ static struct neighbour *xfrm_neigh_lookup(const struct dst_entry *dst,
 
 int xfrm_policy_register_afinfo(struct xfrm_policy_afinfo *afinfo)
 {
-	struct net *net;
 	int err = 0;
 	if (unlikely(afinfo == NULL))
 		return -EINVAL;
@@ -2847,26 +2846,6 @@ int xfrm_policy_register_afinfo(struct xfrm_policy_afinfo *afinfo)
 	}
 	spin_unlock(&xfrm_policy_afinfo_lock);
 
-	rtnl_lock();
-	for_each_net(net) {
-		struct dst_ops *xfrm_dst_ops;
-
-		switch (afinfo->family) {
-		case AF_INET:
-			xfrm_dst_ops = &net->xfrm.xfrm4_dst_ops;
-			break;
-#if IS_ENABLED(CONFIG_IPV6)
-		case AF_INET6:
-			xfrm_dst_ops = &net->xfrm.xfrm6_dst_ops;
-			break;
-#endif
-		default:
-			BUG();
-		}
-		*xfrm_dst_ops = *afinfo->dst_ops;
-	}
-	rtnl_unlock();
-
 	return err;
 }
 EXPORT_SYMBOL(xfrm_policy_register_afinfo);
@@ -2902,22 +2881,6 @@ int xfrm_policy_unregister_afinfo(struct xfrm_policy_afinfo *afinfo)
 }
 EXPORT_SYMBOL(xfrm_policy_unregister_afinfo);
 
-static void __net_init xfrm_dst_ops_init(struct net *net)
-{
-	struct xfrm_policy_afinfo *afinfo;
-
-	rcu_read_lock();
-	afinfo = rcu_dereference(xfrm_policy_afinfo[AF_INET]);
-	if (afinfo)
-		net->xfrm.xfrm4_dst_ops = *afinfo->dst_ops;
-#if IS_ENABLED(CONFIG_IPV6)
-	afinfo = rcu_dereference(xfrm_policy_afinfo[AF_INET6]);
-	if (afinfo)
-		net->xfrm.xfrm6_dst_ops = *afinfo->dst_ops;
-#endif
-	rcu_read_unlock();
-}
-
 static int xfrm_dev_event(struct notifier_block *this, unsigned long event, void *ptr)
 {
 	struct net_device *dev = netdev_notifier_info_to_dev(ptr);
@@ -3066,7 +3029,6 @@ static int __net_init xfrm_net_init(struct net *net)
 	rv = xfrm_policy_init(net);
 	if (rv < 0)
 		goto out_policy;
-	xfrm_dst_ops_init(net);
 	rv = xfrm_sysctl_init(net);
 	if (rv < 0)
 		goto out_sysctl;
-- 
1.9.1

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#1319760 — [PATCH 4.2.y-ckt 268/268] ipv6: update skb->csum when CE mark is propagated

4.2.8-ckt3 -stable review patch.  If anyone has any objections, please let me know.

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

From: Eric Dumazet <edumazet@google.com>

[ Upstream commit 34ae6a1aa0540f0f781dd265366036355fdc8930 ]

When a tunnel decapsulates the outer header, it has to comply
with RFC 6080 and eventually propagate CE mark into inner header.

It turns out IP6_ECN_set_ce() does not correctly update skb->csum
for CHECKSUM_COMPLETE packets, triggering infamous "hw csum failure"
messages and stack traces.

Signed-off-by: Eric Dumazet <edumazet@google.com>
Acked-by: Herbert Xu <herbert@gondor.apana.org.au>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Kamal Mostafa <kamal@canonical.com>
---
 include/net/inet_ecn.h       | 19 ++++++++++++++++---
 net/ipv6/xfrm6_mode_tunnel.c |  2 +-
 2 files changed, 17 insertions(+), 4 deletions(-)

diff --git a/include/net/inet_ecn.h b/include/net/inet_ecn.h
index 84b2083..0dc0a51 100644
--- a/include/net/inet_ecn.h
+++ b/include/net/inet_ecn.h
@@ -111,11 +111,24 @@ static inline void ipv4_copy_dscp(unsigned int dscp, struct iphdr *inner)
 
 struct ipv6hdr;
 
-static inline int IP6_ECN_set_ce(struct ipv6hdr *iph)
+/* Note:
+ * IP_ECN_set_ce() has to tweak IPV4 checksum when setting CE,
+ * meaning both changes have no effect on skb->csum if/when CHECKSUM_COMPLETE
+ * In IPv6 case, no checksum compensates the change in IPv6 header,
+ * so we have to update skb->csum.
+ */
+static inline int IP6_ECN_set_ce(struct sk_buff *skb, struct ipv6hdr *iph)
 {
+	__be32 from, to;
+
 	if (INET_ECN_is_not_ect(ipv6_get_dsfield(iph)))
 		return 0;
-	*(__be32*)iph |= htonl(INET_ECN_CE << 20);
+
+	from = *(__be32 *)iph;
+	to = from | htonl(INET_ECN_CE << 20);
+	*(__be32 *)iph = to;
+	if (skb->ip_summed == CHECKSUM_COMPLETE)
+		skb->csum = csum_add(csum_sub(skb->csum, from), to);
 	return 1;
 }
 
@@ -142,7 +155,7 @@ static inline int INET_ECN_set_ce(struct sk_buff *skb)
 	case cpu_to_be16(ETH_P_IPV6):
 		if (skb_network_header(skb) + sizeof(struct ipv6hdr) <=
 		    skb_tail_pointer(skb))
-			return IP6_ECN_set_ce(ipv6_hdr(skb));
+			return IP6_ECN_set_ce(skb, ipv6_hdr(skb));
 		break;
 	}
 
diff --git a/net/ipv6/xfrm6_mode_tunnel.c b/net/ipv6/xfrm6_mode_tunnel.c
index 901ef6f..5266ad2 100644
--- a/net/ipv6/xfrm6_mode_tunnel.c
+++ b/net/ipv6/xfrm6_mode_tunnel.c
@@ -24,7 +24,7 @@ static inline void ipip6_ecn_decapsulate(struct sk_buff *skb)
 	struct ipv6hdr *inner_iph = ipipv6_hdr(skb);
 
 	if (INET_ECN_is_ce(ipv6_get_dsfield(outer_iph)))
-		IP6_ECN_set_ce(inner_iph);
+		IP6_ECN_set_ce(skb, inner_iph);
 }
 
 /* Add encapsulation header.
-- 
1.9.1

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#1319761 — [PATCH 4.2.y-ckt 254/268] sctp: sctp should release assoc when sctp_make_abort_user return NULL in sctp_close

4.2.8-ckt3 -stable review patch.  If anyone has any objections, please let me know.

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

From: Xin Long <lucien.xin@gmail.com>

[ Upstream commit 068d8bd338e855286aea54e70d1c101569284b21 ]

In sctp_close, sctp_make_abort_user may return NULL because of memory
allocation failure. If this happens, it will bypass any state change
and never free the assoc. The assoc has no chance to be freed and it
will be kept in memory with the state it had even after the socket is
closed by sctp_close().

So if sctp_make_abort_user fails to allocate memory, we should abort
the asoc via sctp_primitive_ABORT as well. Just like the annotation in
sctp_sf_cookie_wait_prm_abort and sctp_sf_do_9_1_prm_abort said,
"Even if we can't send the ABORT due to low memory delete the TCB.
This is a departure from our typical NOMEM handling".

But then the chunk is NULL (low memory) and the SCTP_CMD_REPLY cmd would
dereference the chunk pointer, and system crash. So we should add
SCTP_CMD_REPLY cmd only when the chunk is not NULL, just like other
places where it adds SCTP_CMD_REPLY cmd.

Signed-off-by: Xin Long <lucien.xin@gmail.com>
Acked-by: Marcelo Ricardo Leitner <marcelo.leitner@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Kamal Mostafa <kamal@canonical.com>
---
 net/sctp/sm_statefuns.c | 6 ++++--
 net/sctp/socket.c       | 3 +--
 2 files changed, 5 insertions(+), 4 deletions(-)

diff --git a/net/sctp/sm_statefuns.c b/net/sctp/sm_statefuns.c
index 3809a74..68056f8 100644
--- a/net/sctp/sm_statefuns.c
+++ b/net/sctp/sm_statefuns.c
@@ -4829,7 +4829,8 @@ sctp_disposition_t sctp_sf_do_9_1_prm_abort(
 
 	retval = SCTP_DISPOSITION_CONSUME;
 
-	sctp_add_cmd_sf(commands, SCTP_CMD_REPLY, SCTP_CHUNK(abort));
+	if (abort)
+		sctp_add_cmd_sf(commands, SCTP_CMD_REPLY, SCTP_CHUNK(abort));
 
 	/* Even if we can't send the ABORT due to low memory delete the
 	 * TCB.  This is a departure from our typical NOMEM handling.
@@ -4966,7 +4967,8 @@ sctp_disposition_t sctp_sf_cookie_wait_prm_abort(
 			SCTP_TO(SCTP_EVENT_TIMEOUT_T1_INIT));
 	retval = SCTP_DISPOSITION_CONSUME;
 
-	sctp_add_cmd_sf(commands, SCTP_CMD_REPLY, SCTP_CHUNK(abort));
+	if (abort)
+		sctp_add_cmd_sf(commands, SCTP_CMD_REPLY, SCTP_CHUNK(abort));
 
 	sctp_add_cmd_sf(commands, SCTP_CMD_NEW_STATE,
 			SCTP_STATE(SCTP_STATE_CLOSED));
diff --git a/net/sctp/socket.c b/net/sctp/socket.c
index 84b1b50..9dee804 100644
--- a/net/sctp/socket.c
+++ b/net/sctp/socket.c
@@ -1513,8 +1513,7 @@ static void sctp_close(struct sock *sk, long timeout)
 			struct sctp_chunk *chunk;
 
 			chunk = sctp_make_abort_user(asoc, NULL, 0);
-			if (chunk)
-				sctp_primitive_ABORT(net, asoc, chunk);
+			sctp_primitive_ABORT(net, asoc, chunk);
 		} else
 			sctp_primitive_SHUTDOWN(net, asoc, NULL);
 	}
-- 
1.9.1

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#1319762 — [PATCH 4.2.y-ckt 248/268] IB/mlx4: Initialize hop_limit when creating address handle

4.2.8-ckt3 -stable review patch.  If anyone has any objections, please let me know.

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

From: Matan Barak <matanb@mellanox.com>

commit 4e4081673445485aa6bc90383bdb83e7a96cc48a upstream.

Hop limit value wasn't copied from attributes  when ah was created.
This may influence packets for unconnected services to get dropped in
routers when endpoints are not in the same subnet.

Fixes: fa417f7b520e ("IB/mlx4: Add support for IBoE")
Signed-off-by: Matan Barak <matanb@mellanox.com>
Signed-off-by: Doug Ledford <dledford@redhat.com>
Signed-off-by: Kamal Mostafa <kamal@canonical.com>
---
 drivers/infiniband/hw/mlx4/ah.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/drivers/infiniband/hw/mlx4/ah.c b/drivers/infiniband/hw/mlx4/ah.c
index 33fdd50..de1a28d 100644
--- a/drivers/infiniband/hw/mlx4/ah.c
+++ b/drivers/infiniband/hw/mlx4/ah.c
@@ -91,6 +91,7 @@ static struct ib_ah *create_iboe_ah(struct ib_pd *pd, struct ib_ah_attr *ah_attr
 	ah->av.eth.port_pd = cpu_to_be32(to_mpd(pd)->pdn | (ah_attr->port_num << 24));
 	ah->av.eth.gid_index = ah_attr->grh.sgid_index;
 	ah->av.eth.vlan = cpu_to_be16(vlan_tag);
+	ah->av.eth.hop_limit = ah_attr->grh.hop_limit;
 	if (ah_attr->static_rate) {
 		ah->av.eth.stat_rate = ah_attr->static_rate + MLX4_STAT_RATE_OFFSET;
 		while (ah->av.eth.stat_rate > IB_RATE_2_5_GBPS + MLX4_STAT_RATE_OFFSET &&
-- 
1.9.1

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#1319763 — [PATCH 4.2.y-ckt 255/268] connector: bump skb->users before callback invocation

4.2.8-ckt3 -stable review patch.  If anyone has any objections, please let me know.

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

From: Florian Westphal <fw@strlen.de>

[ Upstream commit 55285bf09427c5abf43ee1d54e892f352092b1f1 ]

Dmitry reports memleak with syskaller program.
Problem is that connector bumps skb usecount but might not invoke callback.

So move skb_get to where we invoke the callback.

Reported-by: Dmitry Vyukov <dvyukov@google.com>
Signed-off-by: Florian Westphal <fw@strlen.de>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Kamal Mostafa <kamal@canonical.com>
---
 drivers/connector/connector.c | 11 +++--------
 1 file changed, 3 insertions(+), 8 deletions(-)

diff --git a/drivers/connector/connector.c b/drivers/connector/connector.c
index 30f5228..c19e7fc 100644
--- a/drivers/connector/connector.c
+++ b/drivers/connector/connector.c
@@ -178,26 +178,21 @@ static int cn_call_callback(struct sk_buff *skb)
  *
  * It checks skb, netlink header and msg sizes, and calls callback helper.
  */
-static void cn_rx_skb(struct sk_buff *__skb)
+static void cn_rx_skb(struct sk_buff *skb)
 {
 	struct nlmsghdr *nlh;
-	struct sk_buff *skb;
 	int len, err;
 
-	skb = skb_get(__skb);
-
 	if (skb->len >= NLMSG_HDRLEN) {
 		nlh = nlmsg_hdr(skb);
 		len = nlmsg_len(nlh);
 
 		if (len < (int)sizeof(struct cn_msg) ||
 		    skb->len < nlh->nlmsg_len ||
-		    len > CONNECTOR_MAX_MSG_SIZE) {
-			kfree_skb(skb);
+		    len > CONNECTOR_MAX_MSG_SIZE)
 			return;
-		}
 
-		err = cn_call_callback(skb);
+		err = cn_call_callback(skb_get(skb));
 		if (err < 0)
 			kfree_skb(skb);
 	}
-- 
1.9.1

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#1319764 — [PATCH 4.2.y-ckt 234/268] include/linux/memblock.h: fix ordering of 'flags' argument in comments

4.2.8-ckt3 -stable review patch.  If anyone has any objections, please let me know.

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

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

commit d30b5545bdcf802ffc24ec7dbc6dc4036f6e3820 upstream.

for_each_free_mem_range() and for_each_free_mem_range_reverse() both
accept a 'flags' argument, the comment surrounding the macro placed the
'flags' documentation at the very end, while 'flags' is in fact the 3rd
argument to the macro, so let's preserve natural ordering here.

Fixes: fc6daaf931518 ("mm/memblock: add extra "flags" to memblock to allow selection of memory based on attribute")
Signed-off-by: Florian Fainelli <f.fainelli@gmail.com>
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>
---
 include/linux/memblock.h | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/include/linux/memblock.h b/include/linux/memblock.h
index cc4b019..f0ccf80 100644
--- a/include/linux/memblock.h
+++ b/include/linux/memblock.h
@@ -211,10 +211,10 @@ void __next_mem_pfn_range(int *idx, int nid, unsigned long *out_start_pfn,
  * for_each_free_mem_range - iterate through free memblock areas
  * @i: u64 used as loop variable
  * @nid: node selector, %NUMA_NO_NODE for all nodes
+ * @flags: pick from blocks based on memory attributes
  * @p_start: ptr to phys_addr_t for start address of the range, can be %NULL
  * @p_end: ptr to phys_addr_t for end address of the range, can be %NULL
  * @p_nid: ptr to int for nid of the range, can be %NULL
- * @flags: pick from blocks based on memory attributes
  *
  * Walks over free (memory && !reserved) areas of memblock.  Available as
  * soon as memblock is initialized.
@@ -227,10 +227,10 @@ void __next_mem_pfn_range(int *idx, int nid, unsigned long *out_start_pfn,
  * for_each_free_mem_range_reverse - rev-iterate through free memblock areas
  * @i: u64 used as loop variable
  * @nid: node selector, %NUMA_NO_NODE for all nodes
+ * @flags: pick from blocks based on memory attributes
  * @p_start: ptr to phys_addr_t for start address of the range, can be %NULL
  * @p_end: ptr to phys_addr_t for end address of the range, can be %NULL
  * @p_nid: ptr to int for nid of the range, can be %NULL
- * @flags: pick from blocks based on memory attributes
  *
  * Walks over free (memory && !reserved) areas of memblock in reverse
  * order.  Available as soon as memblock is initialized.
-- 
1.9.1

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#1319765 — [PATCH 4.2.y-ckt 251/268] NFS: Ensure we revalidate attributes before using execute_ok()

4.2.8-ckt3 -stable review patch.  If anyone has any objections, please let me know.

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

From: Trond Myklebust <trond.myklebust@primarydata.com>

commit 5c5fc09a1157a11dbe84e6421c3e0b37d05238cb upstream.

Donald Buczek reports that NFS clients can also report incorrect
results for access() due to lack of revalidation of attributes
before calling execute_ok().
Looking closely, it seems chdir() is afflicted with the same problem.

Fix is to ensure we call nfs_revalidate_inode_rcu() or
nfs_revalidate_inode() as appropriate before deciding to trust
execute_ok().

Reported-by: Donald Buczek <buczek@molgen.mpg.de>
Link: http://lkml.kernel.org/r/1451331530-3748-1-git-send-email-buczek@molgen.mpg.de
Signed-off-by: Trond Myklebust <trond.myklebust@primarydata.com>
Signed-off-by: Kamal Mostafa <kamal@canonical.com>
---
 fs/nfs/dir.c | 18 ++++++++++++++++--
 1 file changed, 16 insertions(+), 2 deletions(-)

diff --git a/fs/nfs/dir.c b/fs/nfs/dir.c
index 40d0dc6..fccbda7 100644
--- a/fs/nfs/dir.c
+++ b/fs/nfs/dir.c
@@ -2443,6 +2443,20 @@ int nfs_may_open(struct inode *inode, struct rpc_cred *cred, int openflags)
 }
 EXPORT_SYMBOL_GPL(nfs_may_open);
 
+static int nfs_execute_ok(struct inode *inode, int mask)
+{
+	struct nfs_server *server = NFS_SERVER(inode);
+	int ret;
+
+	if (mask & MAY_NOT_BLOCK)
+		ret = nfs_revalidate_inode_rcu(server, inode);
+	else
+		ret = nfs_revalidate_inode(server, inode);
+	if (ret == 0 && !execute_ok(inode))
+		ret = -EACCES;
+	return ret;
+}
+
 int nfs_permission(struct inode *inode, int mask)
 {
 	struct rpc_cred *cred;
@@ -2495,8 +2509,8 @@ force_lookup:
 			res = PTR_ERR(cred);
 	}
 out:
-	if (!res && (mask & MAY_EXEC) && !execute_ok(inode))
-		res = -EACCES;
+	if (!res && (mask & MAY_EXEC))
+		res = nfs_execute_ok(inode, mask);
 
 	dfprintk(VFS, "NFS: permission(%s/%lu), mask=0x%x, res=%d\n",
 		inode->i_sb->s_id, inode->i_ino, mask, res);
-- 
1.9.1

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#1319766 — [PATCH 4.2.y-ckt 202/268] ASoC: tegra_alc5632: check return value

4.2.8-ckt3 -stable review patch.  If anyone has any objections, please let me know.

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

From: Sudip Mukherjee <sudipm.mukherjee@gmail.com>

commit 319c32597fc22a58b946a6146f2be1fd208582e0 upstream.

We have been returning success even if snd_soc_card_jack_new() fails.
Lets check the return value and return error if it fails.

Fixes: 12cc6d1dca4d ("ASoC: tegra_alc5632: Register jacks at the card level")
Signed-off-by: Sudip Mukherjee <sudip@vectorindia.org>
Signed-off-by: Mark Brown <broonie@kernel.org>
Signed-off-by: Kamal Mostafa <kamal@canonical.com>
---
 sound/soc/tegra/tegra_alc5632.c | 12 ++++++++----
 1 file changed, 8 insertions(+), 4 deletions(-)

diff --git a/sound/soc/tegra/tegra_alc5632.c b/sound/soc/tegra/tegra_alc5632.c
index ba272e2..deb597f 100644
--- a/sound/soc/tegra/tegra_alc5632.c
+++ b/sound/soc/tegra/tegra_alc5632.c
@@ -101,12 +101,16 @@ static const struct snd_kcontrol_new tegra_alc5632_controls[] = {
 
 static int tegra_alc5632_asoc_init(struct snd_soc_pcm_runtime *rtd)
 {
+	int ret;
 	struct tegra_alc5632 *machine = snd_soc_card_get_drvdata(rtd->card);
 
-	snd_soc_card_jack_new(rtd->card, "Headset Jack", SND_JACK_HEADSET,
-			      &tegra_alc5632_hs_jack,
-			      tegra_alc5632_hs_jack_pins,
-			      ARRAY_SIZE(tegra_alc5632_hs_jack_pins));
+	ret = snd_soc_card_jack_new(rtd->card, "Headset Jack",
+				    SND_JACK_HEADSET,
+				    &tegra_alc5632_hs_jack,
+				    tegra_alc5632_hs_jack_pins,
+				    ARRAY_SIZE(tegra_alc5632_hs_jack_pins));
+	if (ret)
+		return ret;
 
 	if (gpio_is_valid(machine->gpio_hp_det)) {
 		tegra_alc5632_hp_jack_gpio.gpio = machine->gpio_hp_det;
-- 
1.9.1

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#1319767 — [PATCH 4.2.y-ckt 250/268] NFSv4: Don't perform cached access checks before we've OPENed the file

4.2.8-ckt3 -stable review patch.  If anyone has any objections, please let me know.

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

From: Trond Myklebust <trond.myklebust@primarydata.com>

commit 762674f86d0328d5dc923c966e209e1ee59663f2 upstream.

Donald Buczek reports that a nfs4 client incorrectly denies
execute access based on outdated file mode (missing 'x' bit).
After the mode on the server is 'fixed' (chmod +x) further execution
attempts continue to fail, because the nfs ACCESS call updates
the access parameter but not the mode parameter or the mode in
the inode.

The root cause is ultimately that the VFS is calling may_open()
before the NFS client has a chance to OPEN the file and hence revalidate
the access and attribute caches.

Al Viro suggests:
>>> Make nfs_permission() relax the checks when it sees MAY_OPEN, if you know
>>> that things will be caught by server anyway?
>>
>> That can work as long as we're guaranteed that everything that calls
>> inode_permission() with MAY_OPEN on a regular file will also follow up
>> with a vfs_open() or dentry_open() on success. Is this always the
>> case?
>
> 1) in do_tmpfile(), followed by do_dentry_open() (not reachable by NFS since
> it doesn't have ->tmpfile() instance anyway)
>
> 2) in atomic_open(), after the call of ->atomic_open() has succeeded.
>
> 3) in do_last(), followed on success by vfs_open()
>
> That's all.  All calls of inode_permission() that get MAY_OPEN come from
> may_open(), and there's no other callers of that puppy.

Reported-by: Donald Buczek <buczek@molgen.mpg.de>
Link: https://bugzilla.kernel.org/show_bug.cgi?id=109771
Link: http://lkml.kernel.org/r/1451046656-26319-1-git-send-email-buczek@molgen.mpg.de
Cc: Al Viro <viro@zeniv.linux.org.uk>
Signed-off-by: Trond Myklebust <trond.myklebust@primarydata.com>
Signed-off-by: Kamal Mostafa <kamal@canonical.com>
---
 fs/nfs/dir.c | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/fs/nfs/dir.c b/fs/nfs/dir.c
index 547308a..40d0dc6 100644
--- a/fs/nfs/dir.c
+++ b/fs/nfs/dir.c
@@ -2460,6 +2460,9 @@ int nfs_permission(struct inode *inode, int mask)
 		case S_IFLNK:
 			goto out;
 		case S_IFREG:
+			if ((mask & MAY_OPEN) &&
+			   nfs_server_capable(inode, NFS_CAP_ATOMIC_OPEN))
+				return 0;
 			break;
 		case S_IFDIR:
 			/*
-- 
1.9.1

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#1319768 — [PATCH 4.2.y-ckt 258/268] bridge: Only call /sbin/bridge-stp for the initial network namespace

4.2.8-ckt3 -stable review patch.  If anyone has any objections, please let me know.

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

From: Hannes Frederic Sowa <hannes@stressinduktion.org>

[ Upstream commit ff62198553e43cdffa9d539f6165d3e83f8a42bc ]

[I stole this patch from Eric Biederman. He wrote:]

> There is no defined mechanism to pass network namespace information
> into /sbin/bridge-stp therefore don't even try to invoke it except
> for bridge devices in the initial network namespace.
>
> It is possible for unprivileged users to cause /sbin/bridge-stp to be
> invoked for any network device name which if /sbin/bridge-stp does not
> guard against unreasonable arguments or being invoked twice on the
> same network device could cause problems.

[Hannes: changed patch using netns_eq]

Cc: Eric W. Biederman <ebiederm@xmission.com>
Signed-off-by: Eric W. Biederman <ebiederm@xmission.com>
Signed-off-by: Hannes Frederic Sowa <hannes@stressinduktion.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Kamal Mostafa <kamal@canonical.com>
---
 net/bridge/br_stp_if.c | 5 ++++-
 1 file changed, 4 insertions(+), 1 deletion(-)

diff --git a/net/bridge/br_stp_if.c b/net/bridge/br_stp_if.c
index 4ca449a..49d8d28 100644
--- a/net/bridge/br_stp_if.c
+++ b/net/bridge/br_stp_if.c
@@ -130,7 +130,10 @@ static void br_stp_start(struct net_bridge *br)
 	char *envp[] = { NULL };
 	struct net_bridge_port *p;
 
-	r = call_usermodehelper(BR_STP_PROG, argv, envp, UMH_WAIT_PROC);
+	if (net_eq(dev_net(br->dev), &init_net))
+		r = call_usermodehelper(BR_STP_PROG, argv, envp, UMH_WAIT_PROC);
+	else
+		r = -ENOENT;
 
 	spin_lock_bh(&br->lock);
 
-- 
1.9.1

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#1319769 — [PATCH 4.2.y-ckt 247/268] mmc: debugfs: correct wrong voltage value

4.2.8-ckt3 -stable review patch.  If anyone has any objections, please let me know.

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

From: Chuanxiao Dong <chuanxiao.dong@intel.com>

commit 0036e74686344f1051afc3107740140abfd03616 upstream.

Correct the wrong voltage value shown in debugfs for mmc/sd/sdio.

Signed-off-by: Chuanxiao Dong <chuanxiao.dong@intel.com>
Signed-off-by: Pawel Wodkowski <pawelx.wodkowski@intel.com>
Fixes: 42cd95a0603e ("mmc: core: debugfs: Add signal_voltage to ios dump")
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
Signed-off-by: Kamal Mostafa <kamal@canonical.com>
---
 drivers/mmc/core/debugfs.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/mmc/core/debugfs.c b/drivers/mmc/core/debugfs.c
index e914210..7115489 100644
--- a/drivers/mmc/core/debugfs.c
+++ b/drivers/mmc/core/debugfs.c
@@ -164,7 +164,7 @@ static int mmc_ios_show(struct seq_file *s, void *data)
 		str = "invalid";
 		break;
 	}
-	seq_printf(s, "signal voltage:\t%u (%s)\n", ios->chip_select, str);
+	seq_printf(s, "signal voltage:\t%u (%s)\n", ios->signal_voltage, str);
 
 	return 0;
 }
-- 
1.9.1

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#1319770 — [PATCH 4.2.y-ckt 261/268] udp: disallow UFO for sockets with SO_NO_CHECK option

4.2.8-ckt3 -stable review patch.  If anyone has any objections, please let me know.

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

From: =?UTF-8?q?Michal=20Kube=C4=8Dek?= <mkubecek@suse.cz>

[ Upstream commit 40ba330227ad00b8c0cdf2f425736ff9549cc423 ]

Commit acf8dd0a9d0b ("udp: only allow UFO for packets from SOCK_DGRAM
sockets") disallows UFO for packets sent from raw sockets. We need to do
the same also for SOCK_DGRAM sockets with SO_NO_CHECK options, even if
for a bit different reason: while such socket would override the
CHECKSUM_PARTIAL set by ip_ufo_append_data(), gso_size is still set and
bad offloading flags warning is triggered in __skb_gso_segment().

In the IPv6 case, SO_NO_CHECK option is ignored but we need to disallow
UFO for packets sent by sockets with UDP_NO_CHECK6_TX option.

Signed-off-by: Michal Kubecek <mkubecek@suse.cz>
Tested-by: Shannon Nelson <shannon.nelson@intel.com>
Acked-by: Hannes Frederic Sowa <hannes@stressinduktion.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Kamal Mostafa <kamal@canonical.com>
---
 net/ipv4/ip_output.c  | 2 +-
 net/ipv6/ip6_output.c | 2 +-
 2 files changed, 2 insertions(+), 2 deletions(-)

diff --git a/net/ipv4/ip_output.c b/net/ipv4/ip_output.c
index 23fcc82..de76e1f 100644
--- a/net/ipv4/ip_output.c
+++ b/net/ipv4/ip_output.c
@@ -918,7 +918,7 @@ static int __ip_append_data(struct sock *sk,
 	if (((length > mtu) || (skb && skb_is_gso(skb))) &&
 	    (sk->sk_protocol == IPPROTO_UDP) &&
 	    (rt->dst.dev->features & NETIF_F_UFO) && !rt->dst.header_len &&
-	    (sk->sk_type == SOCK_DGRAM)) {
+	    (sk->sk_type == SOCK_DGRAM) && !sk->sk_no_check_tx) {
 		err = ip_ufo_append_data(sk, queue, getfrag, from, length,
 					 hh_len, fragheaderlen, transhdrlen,
 					 maxfraglen, flags);
diff --git a/net/ipv6/ip6_output.c b/net/ipv6/ip6_output.c
index ba1a9ac..18382b0 100644
--- a/net/ipv6/ip6_output.c
+++ b/net/ipv6/ip6_output.c
@@ -1331,7 +1331,7 @@ emsgsize:
 	     (skb && skb_is_gso(skb))) &&
 	    (sk->sk_protocol == IPPROTO_UDP) &&
 	    (rt->dst.dev->features & NETIF_F_UFO) &&
-	    (sk->sk_type == SOCK_DGRAM)) {
+	    (sk->sk_type == SOCK_DGRAM) && !udp_get_no_check6_tx(sk)) {
 		err = ip6_ufo_append_data(sk, queue, getfrag, from, length,
 					  hh_len, fragheaderlen,
 					  transhdrlen, mtu, flags, fl6);
-- 
1.9.1

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#1319771 — [PATCH 4.2.y-ckt 260/268] sched,cls_flower: set key address type when present

4.2.8-ckt3 -stable review patch.  If anyone has any objections, please let me know.

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

From: Jamal Hadi Salim <jhs@mojatatu.com>

[ Upstream commit 66530bdf85eb1d72a0c399665e09a2c2298501c6 ]

only when user space passes the addresses should we consider their
presence

Signed-off-by: Jamal Hadi Salim <jhs@mojatatu.com>
Acked-by: Jiri Pirko <jiri@resnulli.us>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Kamal Mostafa <kamal@canonical.com>
---
 net/sched/cls_flower.c | 10 ++++++++--
 1 file changed, 8 insertions(+), 2 deletions(-)

diff --git a/net/sched/cls_flower.c b/net/sched/cls_flower.c
index 2f3d03f..ec9b8ee 100644
--- a/net/sched/cls_flower.c
+++ b/net/sched/cls_flower.c
@@ -252,23 +252,28 @@ static int fl_set_key(struct net *net, struct nlattr **tb,
 	fl_set_key_val(tb, key->eth.src, TCA_FLOWER_KEY_ETH_SRC,
 		       mask->eth.src, TCA_FLOWER_KEY_ETH_SRC_MASK,
 		       sizeof(key->eth.src));
+
 	fl_set_key_val(tb, &key->basic.n_proto, TCA_FLOWER_KEY_ETH_TYPE,
 		       &mask->basic.n_proto, TCA_FLOWER_UNSPEC,
 		       sizeof(key->basic.n_proto));
+
 	if (key->basic.n_proto == htons(ETH_P_IP) ||
 	    key->basic.n_proto == htons(ETH_P_IPV6)) {
 		fl_set_key_val(tb, &key->basic.ip_proto, TCA_FLOWER_KEY_IP_PROTO,
 			       &mask->basic.ip_proto, TCA_FLOWER_UNSPEC,
 			       sizeof(key->basic.ip_proto));
 	}
-	if (key->control.addr_type == FLOW_DISSECTOR_KEY_IPV4_ADDRS) {
+
+	if (tb[TCA_FLOWER_KEY_IPV4_SRC] || tb[TCA_FLOWER_KEY_IPV4_DST]) {
+		key->control.addr_type = FLOW_DISSECTOR_KEY_IPV4_ADDRS;
 		fl_set_key_val(tb, &key->ipv4.src, TCA_FLOWER_KEY_IPV4_SRC,
 			       &mask->ipv4.src, TCA_FLOWER_KEY_IPV4_SRC_MASK,
 			       sizeof(key->ipv4.src));
 		fl_set_key_val(tb, &key->ipv4.dst, TCA_FLOWER_KEY_IPV4_DST,
 			       &mask->ipv4.dst, TCA_FLOWER_KEY_IPV4_DST_MASK,
 			       sizeof(key->ipv4.dst));
-	} else if (key->control.addr_type == FLOW_DISSECTOR_KEY_IPV6_ADDRS) {
+	} else if (tb[TCA_FLOWER_KEY_IPV6_SRC] || tb[TCA_FLOWER_KEY_IPV6_DST]) {
+		key->control.addr_type = FLOW_DISSECTOR_KEY_IPV6_ADDRS;
 		fl_set_key_val(tb, &key->ipv6.src, TCA_FLOWER_KEY_IPV6_SRC,
 			       &mask->ipv6.src, TCA_FLOWER_KEY_IPV6_SRC_MASK,
 			       sizeof(key->ipv6.src));
@@ -276,6 +281,7 @@ static int fl_set_key(struct net *net, struct nlattr **tb,
 			       &mask->ipv6.dst, TCA_FLOWER_KEY_IPV6_DST_MASK,
 			       sizeof(key->ipv6.dst));
 	}
+
 	if (key->basic.ip_proto == IPPROTO_TCP) {
 		fl_set_key_val(tb, &key->tp.src, TCA_FLOWER_KEY_TCP_SRC,
 			       &mask->tp.src, TCA_FLOWER_UNSPEC,
-- 
1.9.1

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#1319772 — [PATCH 4.2.y-ckt 265/268] batman-adv: Drop immediate batadv_hard_iface free function

4.2.8-ckt3 -stable review patch.  If anyone has any objections, please let me know.

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

From: Sven Eckelmann <sven@narfation.org>

[ Upstream commit b4d922cfc9c08318eeb77d53b7633740e6b0efb0 ]

It is not allowed to free the memory of an object which is part of a list
which is protected by rcu-read-side-critical sections without making sure
that no other context is accessing the object anymore. This usually happens
by removing the references to this object and then waiting until the rcu
grace period is over and no one (allowedly) accesses it anymore.

But the _now functions ignore this completely. They free the object
directly even when a different context still tries to access it. This has
to be avoided and thus these functions must be removed and all functions
have to use batadv_hardif_free_ref.

Fixes: 89652331c00f ("batman-adv: split tq information in neigh_node struct")
Signed-off-by: Sven Eckelmann <sven@narfation.org>
Signed-off-by: Marek Lindner <mareklindner@neomailbox.ch>
Signed-off-by: Antonio Quartulli <a@unstable.cc>
Signed-off-by: Kamal Mostafa <kamal@canonical.com>
---
 net/batman-adv/hard-interface.h | 12 ------------
 net/batman-adv/originator.c     | 14 +++++++-------
 2 files changed, 7 insertions(+), 19 deletions(-)

diff --git a/net/batman-adv/hard-interface.h b/net/batman-adv/hard-interface.h
index 5a31420..7b12ea8 100644
--- a/net/batman-adv/hard-interface.h
+++ b/net/batman-adv/hard-interface.h
@@ -75,18 +75,6 @@ batadv_hardif_free_ref(struct batadv_hard_iface *hard_iface)
 		call_rcu(&hard_iface->rcu, batadv_hardif_free_rcu);
 }
 
-/**
- * batadv_hardif_free_ref_now - decrement the hard interface refcounter and
- *  possibly free it (without rcu callback)
- * @hard_iface: the hard interface to free
- */
-static inline void
-batadv_hardif_free_ref_now(struct batadv_hard_iface *hard_iface)
-{
-	if (atomic_dec_and_test(&hard_iface->refcount))
-		batadv_hardif_free_rcu(&hard_iface->rcu);
-}
-
 static inline struct batadv_hard_iface *
 batadv_primary_if_get_selected(struct batadv_priv *bat_priv)
 {
diff --git a/net/batman-adv/originator.c b/net/batman-adv/originator.c
index 2a96811..ae69e32 100644
--- a/net/batman-adv/originator.c
+++ b/net/batman-adv/originator.c
@@ -188,16 +188,16 @@ void batadv_neigh_ifinfo_free_ref(struct batadv_neigh_ifinfo *neigh_ifinfo)
 
 /**
  * batadv_neigh_node_free_rcu - free the neigh_node
- * @rcu: rcu pointer of the neigh_node
+ * batadv_neigh_node_release - release neigh_node from lists and queue for
+ *  free after rcu grace period
+ * @neigh_node: neigh neighbor to free
  */
-static void batadv_neigh_node_free_rcu(struct rcu_head *rcu)
+static void batadv_neigh_node_release(struct batadv_neigh_node *neigh_node)
 {
 	struct hlist_node *node_tmp;
-	struct batadv_neigh_node *neigh_node;
 	struct batadv_neigh_ifinfo *neigh_ifinfo;
 	struct batadv_algo_ops *bao;
 
-	neigh_node = container_of(rcu, struct batadv_neigh_node, rcu);
 	bao = neigh_node->orig_node->bat_priv->bat_algo_ops;
 
 	hlist_for_each_entry_safe(neigh_ifinfo, node_tmp,
@@ -208,9 +208,9 @@ static void batadv_neigh_node_free_rcu(struct rcu_head *rcu)
 	if (bao->bat_neigh_free)
 		bao->bat_neigh_free(neigh_node);
 
-	batadv_hardif_free_ref_now(neigh_node->if_incoming);
+	batadv_hardif_free_ref(neigh_node->if_incoming);
 
-	kfree(neigh_node);
+	kfree_rcu(neigh_node, rcu);
 }
 
 /**
@@ -221,7 +221,7 @@ static void batadv_neigh_node_free_rcu(struct rcu_head *rcu)
 void batadv_neigh_node_free_ref(struct batadv_neigh_node *neigh_node)
 {
 	if (atomic_dec_and_test(&neigh_node->refcount))
-		call_rcu(&neigh_node->rcu, batadv_neigh_node_free_rcu);
+		batadv_neigh_node_release(neigh_node);
 }
 
 /**
-- 
1.9.1

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#1319773 — [PATCH 4.2.y-ckt 236/268] btrfs: initialize the seq counter in struct btrfs_device

4.2.8-ckt3 -stable review patch.  If anyone has any objections, please let me know.

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

From: Sebastian Andrzej Siewior <bigeasy@linutronix.de>

commit 546bed631203344611f42b2af1d224d2eedb4e6b upstream.

I managed to trigger this:
| INFO: trying to register non-static key.
| the code is fine but needs lockdep annotation.
| turning off the locking correctness validator.
| CPU: 1 PID: 781 Comm: systemd-gpt-aut Not tainted 4.4.0-rt2+ #14
| Hardware name: ARM-Versatile Express
| [<80307cec>] (dump_stack)
| [<80070e98>] (__lock_acquire)
| [<8007184c>] (lock_acquire)
| [<80287800>] (btrfs_ioctl)
| [<8012a8d4>] (do_vfs_ioctl)
| [<8012ac14>] (SyS_ioctl)

so I think that btrfs_device_data_ordered_init() is not invoked behind
a macro somewhere.

Fixes: 7cc8e58d53cd ("Btrfs: fix unprotected device's variants on 32bits machine")
Signed-off-by: Sebastian Andrzej Siewior <bigeasy@linutronix.de>
Reviewed-by: David Sterba <dsterba@suse.com>
Signed-off-by: David Sterba <dsterba@suse.com>
Signed-off-by: Kamal Mostafa <kamal@canonical.com>
---
 fs/btrfs/volumes.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/fs/btrfs/volumes.c b/fs/btrfs/volumes.c
index f5a3c5b..f3f0cff 100644
--- a/fs/btrfs/volumes.c
+++ b/fs/btrfs/volumes.c
@@ -156,6 +156,7 @@ static struct btrfs_device *__alloc_device(void)
 	spin_lock_init(&dev->reada_lock);
 	atomic_set(&dev->reada_in_flight, 0);
 	atomic_set(&dev->dev_stats_ccnt, 0);
+	btrfs_device_data_ordered_init(dev);
 	INIT_RADIX_TREE(&dev->reada_zones, GFP_NOFS & ~__GFP_WAIT);
 	INIT_RADIX_TREE(&dev->reada_extents, GFP_NOFS & ~__GFP_WAIT);
 
-- 
1.9.1

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#1319774 — [PATCH 4.2.y-ckt 220/268] perf/x86: fix PEBS issues on Intel Atom/Core2

4.2.8-ckt3 -stable review patch.  If anyone has any objections, please let me know.

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

From: Stephane Eranian <eranian@google.com>

commit 1424a09a9e1839285e948d4ea9fdfca26c9a2086 upstream.

This patch fixes broken PEBS support on Intel Atom and Core2
due to wrong pointer arithmetic in intel_pmu_drain_pebs_core().

The get_next_pebs_record_by_bit() was called on PEBS format fmt0
which does not use the pebs_record_nhm layout.

Signed-off-by: Stephane Eranian <eranian@google.com>
Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Cc: Arnaldo Carvalho de Melo <acme@redhat.com>
Cc: Jiri Olsa <jolsa@redhat.com>
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: Vince Weaver <vincent.weaver@maine.edu>
Cc: kan.liang@intel.com
Fixes: 21509084f999 ("perf/x86/intel: Handle multiple records in the PEBS buffer")
Link: http://lkml.kernel.org/r/1449182000-31524-3-git-send-email-eranian@google.com
Signed-off-by: Ingo Molnar <mingo@kernel.org>
Signed-off-by: Kamal Mostafa <kamal@canonical.com>
---
 arch/x86/kernel/cpu/perf_event_intel_ds.c | 9 ++++++++-
 1 file changed, 8 insertions(+), 1 deletion(-)

diff --git a/arch/x86/kernel/cpu/perf_event_intel_ds.c b/arch/x86/kernel/cpu/perf_event_intel_ds.c
index 71fc402..dbe8d89 100644
--- a/arch/x86/kernel/cpu/perf_event_intel_ds.c
+++ b/arch/x86/kernel/cpu/perf_event_intel_ds.c
@@ -1027,6 +1027,13 @@ get_next_pebs_record_by_bit(void *base, void *top, int bit)
 	void *at;
 	u64 pebs_status;
 
+	/*
+	 * fmt0 does not have a status bitfield (does not use
+	 * perf_record_nhm format)
+	 */
+	if (x86_pmu.intel_cap.pebs_format < 1)
+		return base;
+
 	if (base == NULL)
 		return NULL;
 
@@ -1112,7 +1119,7 @@ static void intel_pmu_drain_pebs_core(struct pt_regs *iregs)
 	if (!event->attr.precise_ip)
 		return;
 
-	n = (top - at) / x86_pmu.pebs_record_size;
+	n = top - at;
 	if (n <= 0)
 		return;
 
-- 
1.9.1

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