Commit graph

13377 commits

Author SHA1 Message Date
Venkat Gopalakrishnan
33ee9fb701 scsi: ufs: disable ah8 during suspend and enable it on resume
Auto hibern8 is useful during active requests for efficient power
savings. Since we are anyway in suspend path, disable auto
hibern8 until a successful resume. This prevents unnecessary hibern8
enter/exit during the suspend/resume path.

Change-Id: Ie5a76dddd662e67ae8ce6e6f37f437ff4665b066
Signed-off-by: Venkat Gopalakrishnan <venkatg@codeaurora.org>
2016-08-10 16:34:35 -07:00
Brian King
8727178338 ipr: Clear interrupt on croc/crocodile when running with LSI
commit 54e430bbd490e18ab116afa4cd90dcc45787b3df upstream.

If we fall back to using LSI on the Croc or Crocodile chip we need to
clear the interrupt so we don't hang the system.

Tested-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Signed-off-by: Brian King <brking@linux.vnet.ibm.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2016-08-10 11:49:29 +02:00
Alan Stern
c4c2a8f5b7 SCSI: fix new bug in scsi_dev_info_list string matching
commit 5e7ff2ca7f2da55fe777167849d0c93403bd0dc8 upstream.

Commit b704f70ce2 ("SCSI: fix bug in scsi_dev_info_list matching")
changed the way vendor- and model-string matching was carried out in the
routine that looks up entries in a SCSI devinfo list.  The new matching
code failed to take into account the case of a maximum-length string; in
such cases it could end up testing for a terminating '\0' byte beyond
the end of the memory allocated to the string.  This out-of-bounds bug
was detected by UBSAN.

I don't know if anybody has actually encountered this bug.  The symptom
would be that a device entry in the blacklist might not be matched
properly if it contained an 8-character vendor name or a 16-character
model name.  Such entries certainly exist in scsi_static_device_list.

This patch fixes the problem by adding a check for a maximum-length
string before the '\0' test.

Signed-off-by: Alan Stern <stern@rowland.harvard.edu>
Fixes: b704f70ce2 ("SCSI: fix bug in scsi_dev_info_list matching")
Tested-by: Wilfried Klaebe <linux-kernel@lebenslange-mailadresse.de>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2016-08-10 11:49:29 +02:00
Linux Build Service Account
af0987f562 Merge "Merge remote-tracking branch 'msm-4.4/tmp-2bf7955' into msm-4.4" 2016-08-02 06:42:35 -07:00
Venkat Gopalakrishnan
4667018ad7 scsi: ufs: return appropriate error code
If link recovery succeeds after a hibern8 exit failure,
return success as the link is active now for use.

Change-Id: I76ac226a2a1e33dd9c6240cac3443a03355bb75e
Signed-off-by: Venkat Gopalakrishnan <venkatg@codeaurora.org>
2016-07-28 13:15:01 -07:00
James Bottomley
ddbe16b392 53c700: fix BUG on untagged commands
commit 8beb330044d0d1878c7b92290e91c0b889e92633 upstream.

The untagged command case in the 53c700 driver has been broken since
host wide tags were enabled because the replaced scsi_find_tag()
function had a special case for the tag value SCSI_NO_TAG to retrieve
sdev->current_cmnd.  The replacement function scsi_host_find_tag() has
no such special case and returns NULL causing untagged commands to
trigger a BUG() in the driver.  Inspection shows that the 53c700 is the
only driver using this SCSI_NO_TAG case, so a local fix in the driver
suffices to fix this problem globally.

Fixes: 64d513ac31 - "scsi: use host wide tags by default"
Reported-by: Helge Deller <deller@gmx.de>
Tested-by: Helge Deller <deller@gmx.de>
Signed-off-by: James Bottomley <jejb@linux.vnet.ibm.com>
Reviewed-by: Johannes Thumshirn <jthumshirn@suse.de>
Reviewed-by: Ewan D. Milne <emilne@redhat.com>
Acked-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2016-07-27 09:47:39 -07:00
Wei Fang
273e129267 scsi: fix race between simultaneous decrements of ->host_failed
commit 72d8c36ec364c82bf1bf0c64dfa1041cfaf139f7 upstream.

sas_ata_strategy_handler() adds the works of the ata error handler to
system_unbound_wq. This workqueue asynchronously runs work items, so the
ata error handler will be performed concurrently on different CPUs. In
this case, ->host_failed will be decreased simultaneously in
scsi_eh_finish_cmd() on different CPUs, and become abnormal.

It will lead to permanently inequality between ->host_failed and
->host_busy, and scsi error handler thread won't start running. IO
errors after that won't be handled.

Since all scmds must have been handled in the strategy handler, just
remove the decrement in scsi_eh_finish_cmd() and zero ->host_busy after
the strategy handler to fix this race.

Fixes: 50824d6c56 ("[SCSI] libsas: async ata-eh")
Signed-off-by: Wei Fang <fangwei1@huawei.com>
Reviewed-by: James Bottomley <jejb@linux.vnet.ibm.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2016-07-27 09:47:39 -07:00
Venkat Gopalakrishnan
0b6b69d591 scsi: ufs: Crash the system on unrecoverable state
If we have hit fatal errors and are not able to recover using
a reset, crash the system instead of proceeding and causing
further system failures.

Change-Id: I01820e4e8d3d3b603f16b615ae475095c3a417dd
Signed-off-by: Venkat Gopalakrishnan <venkatg@codeaurora.org>
2016-07-26 11:36:59 -07:00
Trilok Soni
f145f41478 Merge remote-tracking branch 'msm-4.4/tmp-2bf7955' into msm-4.4
* msm-4.4/tmp-2bf7955:
  Linux 4.4.8
  Revert "usb: hub: do not clear BOS field during reset device"
  usbvision: fix crash on detecting device with invalid configuration
  staging: android: ion: Set the length of the DMA sg entries in buffer
  Revert "PCI, x86: Implement pcibios_alloc_irq() and pcibios_free_irq()"
  Revert "PCI: Add helpers to manage pci_dev->irq and pci_dev->irq_managed"
  Revert "x86/PCI: Don't alloc pcibios-irq when MSI is enabled"
  HID: usbhid: fix inconsistent reset/resume/reset-resume behavior
  HID: wacom: fix Bamboo ONE oops
  ALSA: usb-audio: Skip volume controls triggers hangup on Dell USB Dock
  ALSA: usb-audio: Add a quirk for Plantronics BT300
  ALSA: usb-audio: Add a sample rate quirk for Phoenix Audio TMX320
  ALSA: hda/realtek - Enable the ALC292 dock fixup on the Thinkpad T460s
  ALSA: hda - fix front mic problem for a HP desktop
  ALSA: hda - Fix headset support and noise on HP EliteBook 755 G2
  ALSA: hda - Fixup speaker pass-through control for nid 0x14 on ALC225
  mmc: sdhci-pci: Add support and PCI IDs for more Broxton host controllers
  perf: Cure event->pending_disable race
  perf: Do not double free
  arm64: replace read_lock to rcu lock in call_step_hook
  Btrfs: fix file/data loss caused by fsync after rename and new inode
  iommu: Don't overwrite domain pointer when there is no default_domain
  ext4: ignore quota mount options if the quota feature is enabled
  ext4: add lockdep annotations for i_data_sem
  btrfs: fix crash/invalid memory access on fsync when using overlayfs
  nfs: use file_dentry()
  fs: add file_dentry()
  sd: Fix excessive capacity printing on devices with blocks bigger than 512 bytes
  iio: gyro: bmg160: fix endianness when reading axes
  iio: gyro: bmg160: fix buffer read values
  iio: accel: bmc150: fix endianness when reading axes
  iio: st_magn: always define ST_MAGN_TRIGGER_SET_STATE
  usb: renesas_usbhs: fix to avoid using a disabled ep in usbhsg_queue_done()
  usb: renesas_usbhs: disable TX IRQ before starting TX DMAC transfer
  usb: renesas_usbhs: avoid NULL pointer derefernce in usbhsf_pkt_handler()
  mac80211: fix txq queue related crashes
  mac80211: fix unnecessary frame drops in mesh fwding
  mac80211: fix ibss scan parameters
  mac80211: avoid excessive stack usage in sta_info
  mac80211: properly deal with station hashtable insert errors
  virtio: virtio 1.0 cs04 spec compliance for reset
  rbd: use GFP_NOIO consistently for request allocations
  pcmcia: db1xxx_ss: fix last irq_to_gpio user
  v4l: vsp1: Set the SRU CTRL0 register when starting the stream
  coda: fix error path in case of missing pdata on non-DT platform
  au0828: Fix dev_state handling
  au0828: fix au0828_v4l2_close() dev_state race condition
  pinctrl: freescale: imx: fix bogus check of of_iomap() return value
  pinctrl: nomadik: fix pull debug print inversion
  pinctrl: sunxi: Fix A33 external interrupts not working
  pinctrl: sh-pfc: only use dummy states for non-DT platforms
  pinctrl: pistachio: fix mfio84-89 function description and pinmux.
  MIPS: Fix MSA ld unaligned failure cases
  KVM: x86: reduce default value of halt_poll_ns parameter
  KVM: x86: Inject pending interrupt even if pending nmi exist
  cdc-acm: fix NULL pointer reference
  USB: uas: Add a new NO_REPORT_LUNS quirk
  USB: uas: Limit qdepth at the scsi-host level
  mpls: find_outdev: check for err ptr in addition to NULL check
  ipv6: Count in extension headers in skb->network_header
  ip6_tunnel: set rtnl_link_ops before calling register_netdevice
  ipv6: l2tp: fix a potential issue in l2tp_ip6_recv
  ipv4: l2tp: fix a potential issue in l2tp_ip_recv
  tuntap: restore default qdisc
  tun, bpf: fix suspicious RCU usage in tun_{attach, detach}_filter
  rtnl: fix msg size calculation in if_nlmsg_size()
  bridge: Allow set bridge ageing time when switchdev disabled
  ipv6: udp: fix UDP_MIB_IGNOREDMULTI updates
  qmi_wwan: add "D-Link DWM-221 B1" device id
  xfrm: Fix crash observed during device unregistration and decryption
  ppp: take reference on channels netns
  ipv4: initialize flowi4_flags before calling fib_lookup()
  ipv4: fix broadcast packets reception
  bonding: fix bond_get_stats()
  net: bcmgenet: fix dma api length mismatch
  qlge: Fix receive packets drop.
  tcp/dccp: remove obsolete WARN_ON() in icmp handlers
  ppp: ensure file->private_data can't be overridden
  ath9k: fix buffer overrun for ar9287
  farsync: fix off-by-one bug in fst_add_one
  mlx4: add missing braces in verify_qp_parameters
  net: Fix use after free in the recvmmsg exit path
  ipv4: Don't do expensive useless work during inetdev destroy.
  bridge: allow zero ageing time
  rocker: set FDB cleanup timer according to lowest ageing time
  mlxsw: spectrum: Check requested ageing time is valid
  macvtap: always pass ethernet header in linear
  qlcnic: Fix mailbox completion handling during spurious interrupt
  qlcnic: Remove unnecessary usage of atomic_t
  sh_eth: advance 'rxdesc' later in sh_eth_ring_format()
  sh_eth: fix NULL pointer dereference in sh_eth_ring_format()
  bpf: avoid copying junk bytes in bpf_get_current_comm()
  packet: validate variable length ll headers
  ax25: add link layer header validation function
  net: validate variable length ll headers
  ppp: release rtnl mutex when interface creation fails
  tcp: fix tcpi_segs_in after connection establishment
  udp6: fix UDP/IPv6 encap resubmit path
  usbnet: cleanup after bind() in probe()
  cdc_ncm: toggle altsetting to force reset before setup
  vxlan: fix missing options_len update on RX with collect metadata
  ipv6: re-enable fragment header matching in ipv6_find_hdr
  qmi_wwan: add Sierra Wireless EM74xx device ID
  tipc: Revert "tipc: use existing sk_write_queue for outgoing packet chain"
  mld, igmp: Fix reserved tailroom calculation
  sctp: lack the check for ports in sctp_v6_cmp_addr
  net: fix bridge multicast packet checksum validation
  net: qca_spi: clear IFF_TX_SKB_SHARING
  net: qca_spi: Don't clear IFF_BROADCAST
  net: vrf: Remove direct access to skb->data
  net: jme: fix suspend/resume on JMC260
  ipv4: only create late gso-skb if skb is already set up with CHECKSUM_PARTIAL
  tunnel: Clear IPCB(skb)->opt before dst_link_failure called
  tcp: convert cached rtt from usec to jiffies when feeding initial rto
  xen/events: Mask a moving irq
  drm/amdgpu/gmc: use proper register for vram type on Fiji
  drm/amdgpu/gmc: move vram type fetching into sw_init
  drm/radeon: add a dpm quirk for all R7 370 parts
  drm/radeon: add another R7 370 quirk
  drm/radeon: add a dpm quirk for sapphire Dual-X R7 370 2G D5
  drm/udl: Use unlocked gem unreferencing
  drm/dp: move hw_mutex up the call stack
  arm64: opcodes.h: Add arm big-endian config options before including arm header
  compiler-gcc: disable -ftracer for __noclone functions
  libnvdimm, pfn: fix uuid validation
  libnvdimm: fix smart data retrieval
  powerpc/mm: Fixup preempt underflow with huge pages
  mm: fix invalid node in alloc_migrate_target()
  ALSA: hda - Apply fix for white noise on Asus N550JV, too
  ALSA: hda - Fix white noise on Asus N750JV headphone
  ALSA: hda - Asus N750JV external subwoofer fixup
  ALSA: timer: Use mod_timer() for rearming the system timer
  parisc: Unbreak handling exceptions from kernel modules
  parisc: Fix kernel crash with reversed copy_from_user()
  parisc: Avoid function pointers for kernel exception routines
  PKCS#7: pkcs7_validate_trust(): initialize the _trusted output argument
  hwmon: (max1111) Return -ENODEV from max1111_read_channel if not instantiated
  Linux 4.4.7
  perf/x86/intel: Fix PEBS data source interpretation on Nehalem/Westmere
  perf/x86/intel: Use PAGE_SIZE for PEBS buffer size on Core2
  perf/x86/intel: Fix PEBS warning by only restoring active PMU in pmi
  perf/x86/pebs: Add workaround for broken OVFL status on HSW+
  sched/cputime: Fix steal time accounting vs. CPU hotplug
  scsi_common: do not clobber fixed sense information
  PM / sleep: Clear pm_suspend_global_flags upon hibernate
  intel_idle: prevent SKL-H boot failure when C8+C9+C10 enabled
  mtd: onenand: fix deadlock in onenand_block_markbad
  mm/page_alloc: prevent merging between isolated and other pageblocks
  ocfs2/dlm: fix BUG in dlm_move_lockres_to_recovery_list
  ocfs2/dlm: fix race between convert and recovery
  Input: ati_remote2 - fix crashes on detecting device with invalid descriptor
  Input: ims-pcu - sanity check against missing interfaces
  Input: synaptics - handle spurious release of trackstick buttons, again
  writeback, cgroup: fix use of the wrong bdi_writeback which mismatches the inode
  writeback, cgroup: fix premature wb_put() in locked_inode_to_wb_and_lock_list()
  ACPI / PM: Runtime resume devices when waking from hibernate
  ARM: dts: at91: sama5d4 Xplained: don't disable hsmci regulator
  ARM: dts: at91: sama5d3 Xplained: don't disable hsmci regulator
  nfsd: fix deadlock secinfo+readdir compound
  nfsd4: fix bad bounds checking
  iser-target: Rework connection termination
  iser-target: Separate flows for np listeners and connections cma events
  iser-target: Add new state ISER_CONN_BOUND to isert_conn
  iser-target: Fix identification of login rx descriptor type
  target: Fix target_release_cmd_kref shutdown comp leak
  clk: bcm2835: Fix setting of PLL divider clock rates
  clk: rockchip: add hclk_cpubus to the list of rk3188 critical clocks
  clk: rockchip: rk3368: fix hdmi_cec gate-register
  clk: rockchip: rk3368: fix parents of video encoder/decoder
  clk: rockchip: rk3368: fix cpuclk core dividers
  clk: rockchip: rk3368: fix cpuclk mux bit of big cpu-cluster
  mmc: sdhci: Fix override of timeout clk wrt max_busy_timeout
  mmc: sdhci: fix data timeout (part 2)
  mmc: sdhci: fix data timeout (part 1)
  mmc: mmc_spi: Add Card Detect comments and fix CD GPIO case
  mmc: block: fix ABI regression of mmc_blk_ioctl
  ideapad-laptop: Add ideapad Y700 (15) to the no_hw_rfkill DMI list
  MAINTAINERS: Update mailing list and web page for hwmon subsystem
  kbuild/mkspec: fix grub2 installkernel issue
  scripts/kconfig: allow building with make 3.80 again
  scripts/coccinelle: modernize &
  bitops: Do not default to __clear_bit() for __clear_bit_unlock()
  tracing: Fix trace_printk() to print when not using bprintk()
  tracing: Fix crash from reading trace_pipe with sendfile
  tracing: Have preempt(irqs)off trace preempt disabled functions
  IB/ipoib: fix for rare multicast join race condition
  drm/amdgpu: include the right version of gmc header files for iceland
  drm/amdgpu: disable runtime pm on PX laptops without dGPU power control
  drm/radeon: Don't drop DP 2.7 Ghz link setup on some cards.
  drm/radeon: disable runtime pm on PX laptops without dGPU power control
  iwlwifi: mvm: Fix paging memory leak
  ipr: Fix regression when loading firmware
  ipr: Fix out-of-bounds null overwrite
  rapidio/rionet: fix deadlock on SMP
  fs/coredump: prevent fsuid=0 dumps into user-controlled directories
  fuse: Add reference counting for fuse_io_priv
  fuse: do not use iocb after it may have been freed
  md: multipath: don't hardcopy bio in .make_request path
  md/raid5: preserve STRIPE_PREREAD_ACTIVE in break_stripe_batch_list
  raid10: include bio_end_io_list in nr_queued to prevent freeze_array hang
  RAID5: revert e9e4c377e2 to fix a livelock
  RAID5: check_reshape() shouldn't call mddev_suspend
  md/raid5: Compare apples to apples (or sectors to sectors)
  raid1: include bio_end_io_list in nr_queued to prevent freeze_array hang
  xfs: fix two memory leaks in xfs_attr_list.c error paths
  quota: Fix possible GPF due to uninitialised pointers
  ARC: bitops: Remove non relevant comments
  ARC: [BE] readl()/writel() to work in Big Endian CPU configuration
  xtensa: clear all DBREAKC registers on start
  xtensa: fix preemption in {clear,copy}_user_highpage
  xtensa: ISS: don't hang if stdin EOF is reached
  splice: handle zero nr_pages in splice_to_pipe()
  vfs: show_vfsstat: do not ignore errors from show_devname method
  of: alloc anywhere from memblock if range not specified
  net: mvneta: enable change MAC address when interface is up
  cgroup: ignore css_sets associated with dead cgroups during migration
  Bluetooth: Fix potential buffer overflow with Add Advertising
  Bluetooth: Add new AR3012 ID 0489:e095
  watchdog: rc32434_wdt: fix ioctl error handling
  watchdog: don't run proc_watchdog_update if new value is same as old
  ia64: define ioremap_uc()
  mm: memcontrol: reclaim and OOM kill when shrinking memory.max below usage
  mm: memcontrol: reclaim when shrinking memory.high below usage
  bcache: fix cache_set_flush() NULL pointer dereference on OOM
  bcache: fix race of writeback thread starting before complete initialization
  bcache: cleaned up error handling around register_cache()
  IB/srpt: Simplify srpt_handle_tsk_mgmt()
  brd: Fix discard request processing
  jbd2: fix FS corruption possibility in jbd2_journal_destroy() on umount path
  tools/hv: Use include/uapi with __EXPORTED_HEADERS__
  ALSA: hda - Fix unconditional GPIO toggle via automute
  ALSA: hda - fix the mic mute button and led problem for a Lenovo AIO
  ALSA: hda - Don't handle ELD notify from invalid port
  ALSA: intel8x0: Add clock quirk entry for AD1981B on IBM ThinkPad X41.
  ALSA: pcm: Avoid "BUG:" string for warnings again
  ALSA: hda - Apply reboot D3 fix for CX20724 codec, too
  mtip32xx: Cleanup queued requests after surprise removal
  mtip32xx: Implement timeout handler
  mtip32xx: Handle FTL rebuild failure state during device initialization
  mtip32xx: Handle safe removal during IO
  mtip32xx: Fix for rmmod crash when drive is in FTL rebuild
  mtip32xx: Print exact time when an internal command is interrupted
  mtip32xx: Remove unwanted code from taskfile error handler
  mtip32xx: Fix broken service thread handling
  mtip32xx: Avoid issuing standby immediate cmd during FTL rebuild
  media: v4l2-compat-ioctl32: fix missing length copy in put_v4l2_buffer32
  coda: fix first encoded frame payload
  bttv: Width must be a multiple of 16 when capturing planar formats
  adv7511: TX_EDID_PRESENT is still 1 after a disconnect
  saa7134: Fix bytesperline not being set correctly for planar formats
  8250: use callbacks to access UART_DLL/UART_DLM
  net: irda: Fix use-after-free in irtty_open()
  tty: Fix GPF in flush_to_ldisc(), part 2
  staging: comedi: ni_mio_common: fix the ni_write[blw]() functions
  staging: android: ion_test: fix check of platform_device_register_simple() error code
  staging: comedi: ni_tiocmd: change mistaken use of start_src for start_arg
  HID: fix hid_ignore_special_drivers module parameter
  HID: multitouch: force retrieving of Win8 signature blob
  HID: i2c-hid: fix OOB write in i2c_hid_set_or_send_report()
  HID: logitech: fix Dual Action gamepad support
  tpm: fix the cleanup of struct tpm_chip
  tpm_eventlog.c: fix binary_bios_measurements
  tpm_crb: tpm2_shutdown() must be called before tpm_chip_unregister()
  tpm: fix the rollback in tpm_chip_register()
  mei: bus: check if the device is enabled before data transfer
  X.509: Fix leap year handling again
  crypto: marvell/cesa - forward devm_ioremap_resource() error code
  crypto: ux500 - fix checks of error code returned by devm_ioremap_resource()
  crypto: atmel - fix checks of error code returned by devm_ioremap_resource()
  crypto: keywrap - memzero the correct memory
  crypto: ccp - memset request context to zero during import
  crypto: ccp - Don't assume export/import areas are aligned
  crypto: ccp - Limit the amount of information exported
  crypto: ccp - Add hash state import and export support
  Bluetooth: btusb: Add a new AR3012 ID 13d3:3472
  Bluetooth: btusb: Add a new AR3012 ID 04ca:3014
  Bluetooth: btusb: Add new AR3012 ID 13d3:3395
  ALSA: usb-audio: Fix double-free in error paths after snd_usb_add_audio_stream() call
  ALSA: usb-audio: Minor code cleanup in create_fixed_stream_quirk()
  ALSA: usb-audio: add Microsoft HD-5001 to quirks
  ALSA: usb-audio: Add sanity checks for endpoint accesses
  ALSA: usb-audio: Fix NULL dereference in create_fixed_stream_quirk()
  Input: powermate - fix oops with malicious USB descriptors
  pwc: Add USB id for Philips Spc880nc webcam
  USB: option: add "D-Link DWM-221 B1" device id
  USB: serial: ftdi_sio: Add support for ICP DAS I-756xU devices
  USB: serial: cp210x: Adding GE Healthcare Device ID
  USB: cypress_m8: add endpoint sanity check
  USB: digi_acceleport: do sanity checking for the number of ports
  USB: mct_u232: add sanity checking in probe
  USB: usb_driver_claim_interface: add sanity checking
  USB: iowarrior: fix oops with malicious USB descriptors
  USB: cdc-acm: more sanity checking
  USB: uas: Reduce can_queue to MAX_CMNDS
  usb: hub: fix a typo in hub_port_init() leading to wrong logic
  usb: retry reset if a device times out
  dm: fix rq_end_stats() NULL pointer in dm_requeue_original_request()
  dm cache: make sure every metadata function checks fail_io
  dm thin metadata: don't issue prefetches if a transaction abort has failed
  dm: fix excessive dm-mq context switching
  dm snapshot: disallow the COW and origin devices from being identical
  libnvdimm: Fix security issue with DSM IOCTL.
  aic7xxx: Fix queue depth handling
  be2iscsi: set the boot_kset pointer to NULL in case of failure
  scsi: storvsc: fix SRB_STATUS_ABORTED handling
  sd: Fix discard granularity when LBPRZ=1
  aacraid: Set correct msix count for EEH recovery
  aacraid: Fix memory leak in aac_fib_map_free
  aacraid: Fix RRQ overload
  sg: fix dxferp in from_to case
  x86/mm: TLB_REMOTE_SEND_IPI should count pages
  x86/iopl: Fix iopl capability check on Xen PV
  x86/iopl/64: Properly context-switch IOPL on Xen PV
  x86/apic: Fix suspicious RCU usage in smp_trace_call_function_interrupt()
  x86/irq: Cure live lock in fixup_irqs()
  PCI: ACPI: IA64: fix IO port generic range check
  PCI: Disable IO/MEM decoding for devices with non-compliant BARs
  pinctrl-bcm2835: Fix cut-and-paste error in "pull" parsing
  s390/pci: enforce fmb page boundary rule
  s390/cpumf: add missing lpp magic initialization
  s390: fix floating pointer register corruption (again)
  EDAC, amd64_edac: Shift wrapping issue in f1x_get_norm_dct_addr()
  EDAC/sb_edac: Fix computation of channel address
  sched/preempt, sh: kmap_coherent relies on disabled preemption
  sched/cputime: Fix steal_account_process_tick() to always return jiffies
  Thermal: Ignore invalid trip points
  perf tools: Fix python extension build
  perf tools: Fix checking asprintf return value
  perf tools: Dont stop PMU parsing on alias parse error
  perf/core: Fix perf_sched_count derailment
  KVM: VMX: fix nested vpid for old KVM guests
  KVM: VMX: avoid guest hang on invalid invvpid instruction
  KVM: VMX: avoid guest hang on invalid invept instruction
  KVM: fix spin_lock_init order on x86
  KVM: i8254: change PIT discard tick policy
  KVM: x86: fix missed hardware breakpoints
  x86/PCI: Mark Broadwell-EP Home Agent & PCU as having non-compliant BARs
  perf/x86/intel: Add definition for PT PMI bit
  x86/entry/compat: Keep TS_COMPAT set during signal delivery
  x86/microcode: Untangle from BLK_DEV_INITRD
  x86/microcode/intel: Make early loader look for builtin microcode too
  mmc: sh_mmcif: Correct TX DMA channel allocation
  mmc: sh_mmcif: rework dma channel handling
  ASoC: samsung: pass DMA channels as pointers
  regulator: core: Fix nested locking of supplies
  regulator: core: avoid unused variable warning
  s390/cpumf: Fix lpp detection
  cpufreq: dt: No need to allocate resources anymore
  cpufreq: dt: No need to fetch voltage-tolerance
  cpufreq: dt: Use dev_pm_opp_set_rate() to switch frequency
  cpufreq: dt: Reuse dev_pm_opp_get_max_transition_latency()
  cpufreq: dt: Unsupported OPPs are already disabled
  cpufreq: dt: Pass regulator name to the OPP core
  cpufreq: dt: OPP layers handles clock-latency for V1 bindings as well
  cpufreq: dt: Rename 'need_update' to 'opp_v1'
  cpufreq: dt: Convert few pr_debug/err() calls to dev_dbg/err()
  cpufreq-dt: fix handling regulator_get_voltage() result
  cpufreq-dt: Supply power coefficient when registering cooling devices
  PM / OPP: Rename structures for clarity
  PM / OPP: Fix incorrect comments
  PM / OPP: Initialize regulator pointer to an error value
  PM / OPP: Initialize u_volt_min/max to a valid value
  PM / OPP: Fix NULL pointer dereference crash when disabling OPPs
  PM / OPP: Add dev_pm_opp_set_rate()
  PM / OPP: Manage device clk
  PM / OPP: Parse clock-latency and voltage-tolerance for v1 bindings
  PM / OPP: Introduce dev_pm_opp_get_max_transition_latency()
  PM / OPP: Introduce dev_pm_opp_get_max_volt_latency()
  PM / OPP: Disable OPPs that aren't supported by the regulator
  PM / OPP: get/put regulators from OPP core
  cpufreq: cpufreq-dt: avoid uninitialized variable warnings:
  PM / OPP: Use snprintf() instead of sprintf()
  PM / OPP: Set cpu_dev->id in cpumask first
  PM / OPP: Fix parsing of opp-microvolt and opp-microamp properties
  PM / OPP: Parse 'opp-<prop>-<name>' bindings
  PM / OPP: Parse 'opp-supported-hw' binding
  PM / OPP: Add missing doc comments
  PM / OPP: Rename OPP nodes as opp@<opp-hz>
  PM / OPP: Remove 'operating-points-names' binding
  PM / OPP: Add {opp-microvolt|opp-microamp}-<name> binding
  PM / OPP: Add "opp-supported-hw" binding
  PM / OPP: Add debugfs support
  arm64: vdso: Mark vDSO code as read-only

Conflicts:
	drivers/staging/android/ion/ion.c
	mm/page_alloc.c

CRs-Fixed: 1010239
Change-Id: Id59539cad642885e1e41340cebae4159ba1f7eaf
Signed-off-by: Trilok Soni <tsoni@codeaurora.org>
2016-07-22 16:45:32 -07:00
Linux Build Service Account
a2236a02a7 Merge "scsi: ufshcd: Fix race between clk scaling and ungate work" 2016-07-15 03:44:32 -07:00
Venkat Gopalakrishnan
631771d3a0 scsi: ufshcd: Fix race between clk scaling and ungate work
The ungate work turns on the clock before it exits hibern8,
if the link was put in hibern8 during clock gating work.
There occurs a race condition when clock scaling work calls
ufshcd_hold() to make sure low power states cannot be entered,
but that returns by checking only whether the clocks are on.
This causes the clock scaling work to issue UIC commands when
the link is in hibern8 causing failures. Make sure we exit
hibern8 state before returning from ufshcd_hold().

Callstacks for race condition:

ufshcd_scale_gear+0x120/0x138
ufshcd_devfreq_scale+0x98/0x154
ufshcd_devfreq_target+0x14c/0x250
update_devfreq+0xc4/0x10c
devfreq_monitor+0x34/0x90
process_one_work+0x24c/0x430
worker_thread+0x2e0/0x408
kthread+0x100/0x108
ret_from_fork+0x10/0x40

ufshcd_uic_hibern8_exit+0x128/0x1f0
ufshcd_ungate_work+0xec/0x148
process_one_work+0x24c/0x430
worker_thread+0x2e0/0x408
kthread+0x100/0x108
ret_from_fork+0x10/0x40

CRs-Fixed: 1036530
Change-Id: I7f430abfb2a545ac97dee488a696a89cd18214f1
Signed-off-by: Venkat Gopalakrishnan <venkatg@codeaurora.org>
2016-07-14 12:05:54 -07:00
Runmin Wang
750075feff Merge remote-tracking branch 'origin/tmp-917a9a9133a6' into lsk
* tmp-917a9:
  ARM/vdso: Mark the vDSO code read-only after init
  x86/vdso: Mark the vDSO code read-only after init
  lkdtm: Verify that '__ro_after_init' works correctly
  arch: Introduce post-init read-only memory
  x86/mm: Always enable CONFIG_DEBUG_RODATA and remove the Kconfig option
  mm/init: Add 'rodata=off' boot cmdline parameter to disable read-only kernel mappings
  asm-generic: Consolidate mark_rodata_ro()
  Linux 4.4.6
  ld-version: Fix awk regex compile failure
  target: Drop incorrect ABORT_TASK put for completed commands
  block: don't optimize for non-cloned bio in bio_get_last_bvec()
  MIPS: smp.c: Fix uninitialised temp_foreign_map
  MIPS: Fix build error when SMP is used without GIC
  ovl: fix getcwd() failure after unsuccessful rmdir
  ovl: copy new uid/gid into overlayfs runtime inode
  userfaultfd: don't block on the last VM updates at exit time
  powerpc/powernv: Fix OPAL_CONSOLE_FLUSH prototype and usages
  powerpc/powernv: Add a kmsg_dumper that flushes console output on panic
  powerpc: Fix dedotify for binutils >= 2.26
  Revert "drm/radeon/pm: adjust display configuration after powerstate"
  drm/radeon: Fix error handling in radeon_flip_work_func.
  drm/amdgpu: Fix error handling in amdgpu_flip_work_func.
  Revert "drm/radeon: call hpd_irq_event on resume"
  x86/mm: Fix slow_virt_to_phys() for X86_PAE again
  gpu: ipu-v3: Do not bail out on missing optional port nodes
  mac80211: Fix Public Action frame RX in AP mode
  mac80211: check PN correctly for GCMP-encrypted fragmented MPDUs
  mac80211: minstrel_ht: fix a logic error in RTS/CTS handling
  mac80211: minstrel_ht: set default tx aggregation timeout to 0
  mac80211: fix use of uninitialised values in RX aggregation
  mac80211: minstrel: Change expected throughput unit back to Kbps
  iwlwifi: mvm: inc pending frames counter also when txing non-sta
  can: gs_usb: fixed disconnect bug by removing erroneous use of kfree()
  cfg80211/wext: fix message ordering
  wext: fix message delay/ordering
  ovl: fix working on distributed fs as lower layer
  ovl: ignore lower entries when checking purity of non-directory entries
  ASoC: wm8958: Fix enum ctl accesses in a wrong type
  ASoC: wm8994: Fix enum ctl accesses in a wrong type
  ASoC: samsung: Use IRQ safe spin lock calls
  ASoC: dapm: Fix ctl value accesses in a wrong type
  ncpfs: fix a braino in OOM handling in ncp_fill_cache()
  jffs2: reduce the breakage on recovery from halfway failed rename()
  dmaengine: at_xdmac: fix residue computation
  tracing: Fix check for cpu online when event is disabled
  s390/dasd: fix diag 0x250 inline assembly
  s390/mm: four page table levels vs. fork
  KVM: MMU: fix reserved bit check for ept=0/CR0.WP=0/CR4.SMEP=1/EFER.NX=0
  KVM: MMU: fix ept=0/pte.u=1/pte.w=0/CR0.WP=0/CR4.SMEP=1/EFER.NX=0 combo
  KVM: PPC: Book3S HV: Sanitize special-purpose register values on guest exit
  KVM: s390: correct fprs on SIGP (STOP AND) STORE STATUS
  KVM: VMX: disable PEBS before a guest entry
  kvm: cap halt polling at exactly halt_poll_ns
  PCI: Allow a NULL "parent" pointer in pci_bus_assign_domain_nr()
  ARM: OMAP2+: hwmod: Introduce ti,no-idle dt property
  ARM: dts: dra7: do not gate cpsw clock due to errata i877
  ARM: mvebu: fix overlap of Crypto SRAM with PCIe memory window
  arm64: account for sparsemem section alignment when choosing vmemmap offset
  Linux 4.4.5
  drm/amdgpu: fix topaz/tonga gmc assignment in 4.4 stable
  modules: fix longstanding /proc/kallsyms vs module insertion race.
  drm/i915: refine qemu south bridge detection
  drm/i915: more virtual south bridge detection
  block: get the 1st and last bvec via helpers
  block: check virt boundary in bio_will_gap()
  drm/amdgpu: Use drm_calloc_large for VM page_tables array
  thermal: cpu_cooling: fix out of bounds access in time_in_idle
  i2c: brcmstb: allocate correct amount of memory for regmap
  ubi: Fix out of bounds write in volume update code
  cxl: Fix PSL timebase synchronization detection
  MIPS: traps: Fix SIGFPE information leak from `do_ov' and `do_trap_or_bp'
  MIPS: scache: Fix scache init with invalid line size.
  USB: serial: option: add support for Quectel UC20
  USB: serial: option: add support for Telit LE922 PID 0x1045
  USB: qcserial: add Sierra Wireless EM74xx device ID
  USB: qcserial: add Dell Wireless 5809e Gobi 4G HSPA+ (rev3)
  USB: cp210x: Add ID for Parrot NMEA GPS Flight Recorder
  usb: chipidea: otg: change workqueue ci_otg as freezable
  ALSA: timer: Fix broken compat timer user status ioctl
  ALSA: hdspm: Fix zero-division
  ALSA: hdsp: Fix wrong boolean ctl value accesses
  ALSA: hdspm: Fix wrong boolean ctl value accesses
  ALSA: seq: oss: Don't drain at closing a client
  ALSA: pcm: Fix ioctls for X32 ABI
  ALSA: timer: Fix ioctls for X32 ABI
  ALSA: rawmidi: Fix ioctls X32 ABI
  ALSA: hda - Fix mic issues on Acer Aspire E1-472
  ALSA: ctl: Fix ioctls for X32 ABI
  ALSA: usb-audio: Add a quirk for Plantronics DA45
  adv7604: fix tx 5v detect regression
  dmaengine: pxa_dma: fix cyclic transfers
  Fix directory hardlinks from deleted directories
  jffs2: Fix page lock / f->sem deadlock
  Revert "jffs2: Fix lock acquisition order bug in jffs2_write_begin"
  Btrfs: fix loading of orphan roots leading to BUG_ON
  pata-rb532-cf: get rid of the irq_to_gpio() call
  tracing: Do not have 'comm' filter override event 'comm' field
  ata: ahci: don't mark HotPlugCapable Ports as external/removable
  PM / sleep / x86: Fix crash on graph trace through x86 suspend
  arm64: vmemmap: use virtual projection of linear region
  Adding Intel Lewisburg device IDs for SATA
  writeback: flush inode cgroup wb switches instead of pinning super_block
  block: bio: introduce helpers to get the 1st and last bvec
  libata: Align ata_device's id on a cacheline
  libata: fix HDIO_GET_32BIT ioctl
  drm/amdgpu: return from atombios_dp_get_dpcd only when error
  drm/amdgpu/gfx8: specify which engine to wait before vm flush
  drm/amdgpu: apply gfx_v8 fixes to gfx_v7 as well
  drm/amdgpu/pm: update current crtc info after setting the powerstate
  drm/radeon/pm: update current crtc info after setting the powerstate
  drm/ast: Fix incorrect register check for DRAM width
  target: Fix WRITE_SAME/DISCARD conversion to linux 512b sectors
  iommu/vt-d: Use BUS_NOTIFY_REMOVED_DEVICE in hotplug path
  iommu/amd: Fix boot warning when device 00:00.0 is not iommu covered
  iommu/amd: Apply workaround for ATS write permission check
  arm/arm64: KVM: Fix ioctl error handling
  KVM: x86: fix root cause for missed hardware breakpoints
  vfio: fix ioctl error handling
  Fix cifs_uniqueid_to_ino_t() function for s390x
  CIFS: Fix SMB2+ interim response processing for read requests
  cifs: fix out-of-bounds access in lease parsing
  fbcon: set a default value to blink interval
  kvm: x86: Update tsc multiplier on change.
  mips/kvm: fix ioctl error handling
  parisc: Fix ptrace syscall number and return value modification
  PCI: keystone: Fix MSI code that retrieves struct pcie_port pointer
  block: Initialize max_dev_sectors to 0
  drm/amdgpu: mask out WC from BO on unsupported arches
  btrfs: async-thread: Fix a use-after-free error for trace
  btrfs: Fix no_space in write and rm loop
  Btrfs: fix deadlock running delayed iputs at transaction commit time
  drivers: sh: Restore legacy clock domain on SuperH platforms
  use ->d_seq to get coherency between ->d_inode and ->d_flags
  Linux 4.4.4
  iwlwifi: mvm: don't allow sched scans without matches to be started
  iwlwifi: update and fix 7265 series PCI IDs
  iwlwifi: pcie: properly configure the debug buffer size for 8000
  iwlwifi: dvm: fix WoWLAN
  security: let security modules use PTRACE_MODE_* with bitmasks
  IB/cma: Fix RDMA port validation for iWarp
  x86/irq: Plug vector cleanup race
  x86/irq: Call irq_force_move_complete with irq descriptor
  x86/irq: Remove outgoing CPU from vector cleanup mask
  x86/irq: Remove the cpumask allocation from send_cleanup_vector()
  x86/irq: Clear move_in_progress before sending cleanup IPI
  x86/irq: Remove offline cpus from vector cleanup
  x86/irq: Get rid of code duplication
  x86/irq: Copy vectormask instead of an AND operation
  x86/irq: Check vector allocation early
  x86/irq: Reorganize the search in assign_irq_vector
  x86/irq: Reorganize the return path in assign_irq_vector
  x86/irq: Do not use apic_chip_data.old_domain as temporary buffer
  x86/irq: Validate that irq descriptor is still active
  x86/irq: Fix a race in x86_vector_free_irqs()
  x86/irq: Call chip->irq_set_affinity in proper context
  x86/entry/compat: Add missing CLAC to entry_INT80_32
  x86/mpx: Fix off-by-one comparison with nr_registers
  hpfs: don't truncate the file when delete fails
  do_last(): ELOOP failure exit should be done after leaving RCU mode
  should_follow_link(): validate ->d_seq after having decided to follow
  xen/pcifront: Fix mysterious crashes when NUMA locality information was extracted.
  xen/pciback: Save the number of MSI-X entries to be copied later.
  xen/pciback: Check PF instead of VF for PCI_COMMAND_MEMORY
  xen/scsiback: correct frontend counting
  xen/arm: correctly handle DMA mapping of compound pages
  ARM: at91/dt: fix typo in sama5d2 pinmux descriptions
  ARM: OMAP2+: Fix onenand initialization to avoid filesystem corruption
  do_last(): don't let a bogus return value from ->open() et.al. to confuse us
  kernel/resource.c: fix muxed resource handling in __request_region()
  sunrpc/cache: fix off-by-one in qword_get()
  tracing: Fix showing function event in available_events
  powerpc/eeh: Fix partial hotplug criterion
  KVM: x86: MMU: fix ubsan index-out-of-range warning
  KVM: x86: fix conversion of addresses to linear in 32-bit protected mode
  KVM: x86: fix missed hardware breakpoints
  KVM: arm/arm64: vgic: Ensure bitmaps are long enough
  KVM: async_pf: do not warn on page allocation failures
  of/irq: Fix msi-map calculation for nonzero rid-base
  NFSv4: Fix a dentry leak on alias use
  nfs: fix nfs_size_to_loff_t
  block: fix use-after-free in dio_bio_complete
  bio: return EINTR if copying to user space got interrupted
  i2c: i801: Adding Intel Lewisburg support for iTCO
  phy: core: fix wrong err handle for phy_power_on
  writeback: keep superblock pinned during cgroup writeback association switches
  cgroup: make sure a parent css isn't offlined before its children
  cpuset: make mm migration asynchronous
  PCI/AER: Flush workqueue on device remove to avoid use-after-free
  ARCv2: SMP: Emulate IPI to self using software triggered interrupt
  ARCv2: STAR 9000950267: Handle return from intr to Delay Slot #2
  libata: fix sff host state machine locking while polling
  qla2xxx: Fix stale pointer access.
  spi: atmel: fix gpio chip-select in case of non-DT platform
  target: Fix race with SCF_SEND_DELAYED_TAS handling
  target: Fix remote-port TMR ABORT + se_cmd fabric stop
  target: Fix TAS handling for multi-session se_node_acls
  target: Fix LUN_RESET active TMR descriptor handling
  target: Fix LUN_RESET active I/O handling for ACK_KREF
  ALSA: hda - Fixing background noise on Dell Inspiron 3162
  ALSA: hda - Apply clock gate workaround to Skylake, too
  Revert "workqueue: make sure delayed work run in local cpu"
  workqueue: handle NUMA_NO_NODE for unbound pool_workqueue lookup
  mac80211: Requeue work after scan complete for all VIF types.
  rfkill: fix rfkill_fop_read wait_event usage
  tick/nohz: Set the correct expiry when switching to nohz/lowres mode
  perf stat: Do not clean event's private stats
  cdc-acm:exclude Samsung phone 04e8:685d
  Revert "Staging: panel: usleep_range is preferred over udelay"
  Staging: speakup: Fix getting port information
  sd: Optimal I/O size is in bytes, not sectors
  libceph: don't spam dmesg with stray reply warnings
  libceph: use the right footer size when skipping a message
  libceph: don't bail early from try_read() when skipping a message
  libceph: fix ceph_msg_revoke()
  seccomp: always propagate NO_NEW_PRIVS on tsync
  cpufreq: Fix NULL reference crash while accessing policy->governor_data
  cpufreq: pxa2xx: fix pxa_cpufreq_change_voltage prototype
  hwmon: (ads1015) Handle negative conversion values correctly
  hwmon: (gpio-fan) Remove un-necessary speed_index lookup for thermal hook
  hwmon: (dell-smm) Blacklist Dell Studio XPS 8000
  Thermal: do thermal zone update after a cooling device registered
  Thermal: handle thermal zone device properly during system sleep
  Thermal: initialize thermal zone device correctly
  IB/mlx5: Expose correct maximum number of CQE capacity
  IB/qib: Support creating qps with GFP_NOIO flag
  IB/qib: fix mcast detach when qp not attached
  IB/cm: Fix a recently introduced deadlock
  dmaengine: dw: disable BLOCK IRQs for non-cyclic xfer
  dmaengine: at_xdmac: fix resume for cyclic transfers
  dmaengine: dw: fix cyclic transfer callbacks
  dmaengine: dw: fix cyclic transfer setup
  nfit: fix multi-interface dimm handling, acpi6.1 compatibility
  ACPI / PCI / hotplug: unlock in error path in acpiphp_enable_slot()
  ACPI: Revert "ACPI / video: Add Dell Inspiron 5737 to the blacklist"
  ACPI / video: Add disable_backlight_sysfs_if quirk for the Toshiba Satellite R830
  ACPI / video: Add disable_backlight_sysfs_if quirk for the Toshiba Portege R700
  lib: sw842: select crc32
  uapi: update install list after nvme.h rename
  ideapad-laptop: Add Lenovo Yoga 700 to no_hw_rfkill dmi list
  ideapad-laptop: Add Lenovo ideapad Y700-17ISK to no_hw_rfkill dmi list
  toshiba_acpi: Fix blank screen at boot if transflective backlight is supported
  make sure that freeing shmem fast symlinks is RCU-delayed
  drm/radeon/pm: adjust display configuration after powerstate
  drm/radeon: Don't hang in radeon_flip_work_func on disabled crtc. (v2)
  drm: Fix treatment of drm_vblank_offdelay in drm_vblank_on() (v2)
  drm: Fix drm_vblank_pre/post_modeset regression from Linux 4.4
  drm: Prevent vblank counter bumps > 1 with active vblank clients. (v2)
  drm: No-Op redundant calls to drm_vblank_off() (v2)
  drm/radeon: use post-decrement in error handling
  drm/qxl: use kmalloc_array to alloc reloc_info in qxl_process_single_command
  drm/i915: fix error path in intel_setup_gmbus()
  drm/i915/dsi: don't pass arbitrary data to sideband
  drm/i915/dsi: defend gpio table against out of bounds access
  drm/i915/skl: Don't skip mst encoders in skl_ddi_pll_select()
  drm/i915: Don't reject primary plane windowing with color keying enabled on SKL+
  drm/i915/dp: fall back to 18 bpp when sink capability is unknown
  drm/i915: Make sure DC writes are coherent on flush.
  drm/i915: Init power domains early in driver load
  drm/i915: intel_hpd_init(): Fix suspend/resume reprobing
  drm/i915: Restore inhibiting the load of the default context
  drm: fix missing reference counting decrease
  drm/radeon: hold reference to fences in radeon_sa_bo_new
  drm/radeon: mask out WC from BO on unsupported arches
  drm: add helper to check for wc memory support
  drm/radeon: fix DP audio support for APU with DCE4.1 display engine
  drm/radeon: Add a common function for DFS handling
  drm/radeon: cleaned up VCO output settings for DP audio
  drm/radeon: properly byte swap vce firmware setup
  drm/radeon: clean up fujitsu quirks
  drm/radeon: Fix "slow" audio over DP on DCE8+
  drm/radeon: call hpd_irq_event on resume
  drm/radeon: Fix off-by-one errors in radeon_vm_bo_set_addr
  drm/dp/mst: deallocate payload on port destruction
  drm/dp/mst: Reverse order of MST enable and clearing VC payload table.
  drm/dp/mst: move GUID storage from mgr, port to only mst branch
  drm/dp/mst: Calculate MST PBN with 31.32 fixed point
  drm: Add drm_fixp_from_fraction and drm_fixp2int_ceil
  drm/dp/mst: fix in RAD element access
  drm/dp/mst: fix in MSTB RAD initialization
  drm/dp/mst: always send reply for UP request
  drm/dp/mst: process broadcast messages correctly
  drm/nouveau: platform: Fix deferred probe
  drm/nouveau/disp/dp: ensure sink is powered up before attempting link training
  drm/nouveau/display: Enable vblank irqs after display engine is on again.
  drm/nouveau/kms: take mode_config mutex in connector hotplug path
  drm/amdgpu/pm: adjust display configuration after powerstate
  drm/amdgpu: Don't hang in amdgpu_flip_work_func on disabled crtc.
  drm/amdgpu: use post-decrement in error handling
  drm/amdgpu: fix issue with overlapping userptrs
  drm/amdgpu: hold reference to fences in amdgpu_sa_bo_new (v2)
  drm/amdgpu: remove unnecessary forward declaration
  drm/amdgpu: fix s4 resume
  drm/amdgpu: remove exp hardware support from iceland
  drm/amdgpu: don't load MEC2 on topaz
  drm/amdgpu: drop topaz support from gmc8 module
  drm/amdgpu: pull topaz gmc bits into gmc_v7
  drm/amdgpu: The VI specific EXE bit should only apply to GMC v8.0 above
  drm/amdgpu: iceland use CI based MC IP
  drm/amdgpu: move gmc7 support out of CIK dependency
  drm/amdgpu: no need to load MC firmware on fiji
  drm/amdgpu: fix amdgpu_bo_pin_restricted VRAM placing v2
  drm/amdgpu: fix tonga smu resume
  drm/amdgpu: fix lost sync_to if scheduler is enabled.
  drm/amdgpu: call hpd_irq_event on resume
  drm/amdgpu: Fix off-by-one errors in amdgpu_vm_bo_map
  drm/vmwgfx: respect 'nomodeset'
  drm/vmwgfx: Fix a width / pitch mismatch on framebuffer updates
  drm/vmwgfx: Fix an incorrect lock check
  virtio_pci: fix use after free on release
  virtio_balloon: fix race between migration and ballooning
  virtio_balloon: fix race by fill and leak
  regulator: mt6311: MT6311_REGULATOR needs to select REGMAP_I2C
  regulator: axp20x: Fix GPIO LDO enable value for AXP22x
  clk: exynos: use irqsave version of spin_lock to avoid deadlock with irqs
  cxl: use correct operator when writing pcie config space values
  sparc64: fix incorrect sign extension in sys_sparc64_personality
  EDAC, mc_sysfs: Fix freeing bus' name
  EDAC: Robustify workqueues destruction
  MIPS: Fix buffer overflow in syscall_get_arguments()
  MIPS: Fix some missing CONFIG_CPU_MIPSR6 #ifdefs
  MIPS: hpet: Choose a safe value for the ETIME check
  MIPS: Loongson-3: Fix SMP_ASK_C0COUNT IPI handler
  Revert "MIPS: Fix PAGE_MASK definition"
  cputime: Prevent 32bit overflow in time[val|spec]_to_cputime()
  time: Avoid signed overflow in timekeeping_get_ns()
  Bluetooth: 6lowpan: Fix handling of uncompressed IPv6 packets
  Bluetooth: 6lowpan: Fix kernel NULL pointer dereferences
  Bluetooth: Fix incorrect removing of IRKs
  Bluetooth: Add support of Toshiba Broadcom based devices
  Bluetooth: Use continuous scanning when creating LE connections
  Drivers: hv: vmbus: Fix a Host signaling bug
  tools: hv: vss: fix the write()'s argument: error -> vss_msg
  mmc: sdhci: Allow override of get_cd() called from sdhci_request()
  mmc: sdhci: Allow override of mmc host operations
  mmc: sdhci-pci: Fix card detect race for Intel BXT/APL
  mmc: pxamci: fix again read-only gpio detection polarity
  mmc: sdhci-acpi: Fix card detect race for Intel BXT/APL
  mmc: mmci: fix an ages old detection error
  mmc: core: Enable tuning according to the actual timing
  mmc: sdhci: Fix sdhci_runtime_pm_bus_on/off()
  mmc: mmc: Fix incorrect use of driver strength switching HS200 and HS400
  mmc: sdio: Fix invalid vdd in voltage switch power cycle
  mmc: sdhci: Fix DMA descriptor with zero data length
  mmc: sdhci-pci: Do not default to 33 Ohm driver strength for Intel SPT
  mmc: usdhi6rol0: handle NULL data in timeout
  clockevents/tcb_clksrc: Prevent disabling an already disabled clock
  posix-clock: Fix return code on the poll method's error path
  irqchip/gic-v3-its: Fix double ICC_EOIR write for LPI in EOImode==1
  irqchip/atmel-aic: Fix wrong bit operation for IRQ priority
  irqchip/mxs: Add missing set_handle_irq()
  irqchip/omap-intc: Add support for spurious irq handling
  coresight: checking for NULL string in coresight_name_match()
  dm: fix dm_rq_target_io leak on faults with .request_fn DM w/ blk-mq paths
  dm snapshot: fix hung bios when copy error occurs
  dm space map metadata: remove unused variable in brb_pop()
  tda1004x: only update the frontend properties if locked
  vb2: fix a regression in poll() behavior for output,streams
  gspca: ov534/topro: prevent a division by 0
  si2157: return -EINVAL if firmware blob is too big
  media: dvb-core: Don't force CAN_INVERSION_AUTO in oneshot mode
  rc: sunxi-cir: Initialize the spinlock properly
  namei: ->d_inode of a pinned dentry is stable only for positives
  mei: validate request value in client notify request ioctl
  mei: fix fasync return value on error
  rtlwifi: rtl8723be: Fix module parameter initialization
  rtlwifi: rtl8188ee: Fix module parameter initialization
  rtlwifi: rtl8192se: Fix module parameter initialization
  rtlwifi: rtl8723ae: Fix initialization of module parameters
  rtlwifi: rtl8192de: Fix incorrect module parameter descriptions
  rtlwifi: rtl8192ce: Fix handling of module parameters
  rtlwifi: rtl8192cu: Add missing parameter setup
  rtlwifi: rtl_pci: Fix kernel panic
  locks: fix unlock when fcntl_setlk races with a close
  um: link with -lpthread
  uml: fix hostfs mknod()
  uml: flush stdout before forking
  s390/fpu: signals vs. floating point control register
  s390/compat: correct restore of high gprs on signal return
  s390/dasd: fix performance drop
  s390/dasd: fix refcount for PAV reassignment
  s390/dasd: prevent incorrect length error under z/VM after PAV changes
  s390: fix normalization bug in exception table sorting
  btrfs: initialize the seq counter in struct btrfs_device
  Btrfs: Initialize btrfs_root->highest_objectid when loading tree root and subvolume roots
  Btrfs: fix transaction handle leak on failure to create hard link
  Btrfs: fix number of transaction units required to create symlink
  Btrfs: send, don't BUG_ON() when an empty symlink is found
  btrfs: statfs: report zero available if metadata are exhausted
  Btrfs: igrab inode in writepage
  Btrfs: add missing brelse when superblock checksum fails
  KVM: s390: fix memory overwrites when vx is disabled
  s390/kvm: remove dependency on struct save_area definition
  clocksource/drivers/vt8500: Increase the minimum delta
  genirq: Validate action before dereferencing it in handle_irq_event_percpu()
  mm: numa: quickly fail allocations for NUMA balancing on full nodes
  mm: thp: fix SMP race condition between THP page fault and MADV_DONTNEED
  ocfs2: unlock inode if deleting inode from orphan fails
  drm/i915: shut up gen8+ SDE irq dmesg noise
  iw_cxgb3: Fix incorrectly returning error on success
  spi: omap2-mcspi: Prevent duplicate gpio_request
  drivers: android: correct the size of struct binder_uintptr_t for BC_DEAD_BINDER_DONE
  USB: option: add "4G LTE usb-modem U901"
  USB: option: add support for SIM7100E
  USB: cp210x: add IDs for GE B650V3 and B850V3 boards
  usb: dwc3: Fix assignment of EP transfer resources
  can: ems_usb: Fix possible tx overflow
  dm thin: fix race condition when destroying thin pool workqueue
  bcache: Change refill_dirty() to always scan entire disk if necessary
  bcache: prevent crash on changing writeback_running
  bcache: allows use of register in udev to avoid "device_busy" error.
  bcache: unregister reboot notifier if bcache fails to unregister device
  bcache: fix a leak in bch_cached_dev_run()
  bcache: clear BCACHE_DEV_UNLINK_DONE flag when attaching a backing device
  bcache: Add a cond_resched() call to gc
  bcache: fix a livelock when we cause a huge number of cache misses
  lib/ucs2_string: Correct ucs2 -> utf8 conversion
  efi: Add pstore variables to the deletion whitelist
  efi: Make efivarfs entries immutable by default
  efi: Make our variable validation list include the guid
  efi: Do variable name validation tests in utf8
  efi: Use ucs2_as_utf8 in efivarfs instead of open coding a bad version
  lib/ucs2_string: Add ucs2 -> utf8 helper functions
  ARM: 8457/1: psci-smp is built only for SMP
  drm/gma500: Use correct unref in the gem bo create function
  devm_memremap: Fix error value when memremap failed
  KVM: s390: fix guest fprs memory leak
  arm64: errata: Add -mpc-relative-literal-loads to build flags
  ARM: debug-ll: fix BCM63xx entry for multiplatform
  ext4: fix bh->b_state corruption
  sctp: Fix port hash table size computation
  unix_diag: fix incorrect sign extension in unix_lookup_by_ino
  tipc: unlock in error path
  rtnl: RTM_GETNETCONF: fix wrong return value
  IFF_NO_QUEUE: Fix for drivers not calling ether_setup()
  tcp/dccp: fix another race at listener dismantle
  route: check and remove route cache when we get route
  net_sched fix: reclassification needs to consider ether protocol changes
  pppoe: fix reference counting in PPPoE proxy
  l2tp: Fix error creating L2TP tunnels
  net/mlx4_en: Avoid changing dev->features directly in run-time
  net/mlx4_en: Choose time-stamping shift value according to HW frequency
  net/mlx4_en: Count HW buffer overrun only once
  qmi_wwan: add "4G LTE usb-modem U901"
  tcp: md5: release request socket instead of listener
  tipc: fix premature addition of node to lookup table
  af_unix: Guard against other == sk in unix_dgram_sendmsg
  af_unix: Don't set err in unix_stream_read_generic unless there was an error
  ipv4: fix memory leaks in ip_cmsg_send() callers
  bonding: Fix ARP monitor validation
  bpf: fix branch offset adjustment on backjumps after patching ctx expansion
  flow_dissector: Fix unaligned access in __skb_flow_dissector when used by eth_get_headlen
  net: Copy inner L3 and L4 headers as unaligned on GRE TEB
  sctp: translate network order to host order when users get a hmacid
  enic: increment devcmd2 result ring in case of timeout
  tg3: Fix for tg3 transmit queue 0 timed out when too many gso_segs
  net:Add sysctl_max_skb_frags
  tcp: do not drop syn_recv on all icmp reports
  unix: correctly track in-flight fds in sending process user_struct
  ipv6: fix a lockdep splat
  ipv6: addrconf: Fix recursive spin lock call
  ipv6/udp: use sticky pktinfo egress ifindex on connect()
  ipv6: enforce flowi6_oif usage in ip6_dst_lookup_tail()
  tcp: beware of alignments in tcp_get_info()
  switchdev: Require RTNL mutex to be held when sending FDB notifications
  inet: frag: Always orphan skbs inside ip_defrag()
  tipc: fix connection abort during subscription cancel
  net: dsa: fix mv88e6xxx switches
  sctp: allow setting SCTP_SACK_IMMEDIATELY by the application
  pptp: fix illegal memory access caused by multiple bind()s
  af_unix: fix struct pid memory leak
  tcp: fix NULL deref in tcp_v4_send_ack()
  lwt: fix rx checksum setting for lwt devices tunneling over ipv6
  tunnels: Allow IPv6 UDP checksums to be correctly controlled.
  net: dp83640: Fix tx timestamp overflow handling.
  gro: Make GRO aware of lightweight tunnels.
  af_iucv: Validate socket address length in iucv_sock_bind()

Conflicts:
	arch/arm64/Makefile
	arch/arm64/include/asm/cacheflush.h
	drivers/mmc/host/sdhci.c
	drivers/usb/dwc3/ep0.c
	drivers/usb/dwc3/gadget.c
	kernel/module.c
	sound/core/pcm_compat.c

CRs-Fixed: 1010239
Signed-off-by: Runmin Wang <runminw@codeaurora.org>
Change-Id: I41a28636fc9ad91f9d979b191784609476294cdf
2016-07-12 11:40:49 -07:00
Subhash Jadavani
1496271f4c scsi: ufs-qcom: fix bug with read/modify write of UFS_CFG1
ufs_qcom_print_hw_debug_reg_all() function is having a bug
where it might incorrectly modify undesired bits in UFS_CFG1 register,
this change fixes it.

Change-Id: I2605beeb41f3c319877f48e35723f597f7dfb9da
Signed-off-by: Subhash Jadavani <subhashj@codeaurora.org>
2016-06-30 16:49:31 -07:00
Subhash Jadavani
73fa24503b scsi: ufs-debugfs: add error state
This change adds support to allow user space query if low level UFS driver
has encountered any error or not, this state can be read/cleared via
debugfs.

Change-Id: I867a4621315108aff17be852cfaadcfa945566a7
Signed-off-by: Subhash Jadavani <subhashj@codeaurora.org>
2016-06-24 15:05:01 -07:00
Ewan D. Milne
c54c115da7 scsi: Add QEMU CD-ROM to VPD Inquiry Blacklist
commit fbd83006e3e536fcb103228d2422ea63129ccb03 upstream.

Linux fails to boot as a guest with a QEMU CD-ROM:

[    4.439488] ata2.00: ATAPI: QEMU CD-ROM, 0.8.2, max UDMA/100
[    4.443649] ata2.00: configured for MWDMA2
[    4.450267] scsi 1:0:0:0: CD-ROM            QEMU     QEMU CD-ROM      0.8. PQ: 0 ANSI: 5
[    4.464317] ata2.00: exception Emask 0x0 SAct 0x0 SErr 0x0 action 0x6 frozen
[    4.464319] ata2.00: BMDMA stat 0x5
[    4.464339] ata2.00: cmd a0/01:00:00:00:01/00:00:00:00:00/a0 tag 0 dma 16640 in
[    4.464339]          Inquiry 12 01 00 00 ff 00res 48/20:02:00:24:00/00:00:00:00:00/a0 Emask 0x2 (HSM violation)
[    4.464341] ata2.00: status: { DRDY DRQ }
[    4.465864] ata2: soft resetting link
[    4.625971] ata2.00: configured for MWDMA2
[    4.628290] ata2: EH complete
[    4.646670] ata2.00: exception Emask 0x0 SAct 0x0 SErr 0x0 action 0x6 frozen
[    4.646671] ata2.00: BMDMA stat 0x5
[    4.646683] ata2.00: cmd a0/01:00:00:00:01/00:00:00:00:00/a0 tag 0 dma 16640 in
[    4.646683]          Inquiry 12 01 00 00 ff 00res 48/20:02:00:24:00/00:00:00:00:00/a0 Emask 0x2 (HSM violation)
[    4.646685] ata2.00: status: { DRDY DRQ }
[    4.648193] ata2: soft resetting link

...

Fix this by suppressing VPD inquiry for this device.

Signed-off-by: Ewan D. Milne <emilne@redhat.com>
Reported-by: Jan Stancek <jstancek@redhat.com>
Tested-by: Jan Stancek <jstancek@redhat.com>
Reviewed-by: Johannes Thumshirn <jthumshirn@suse.de>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2016-06-24 10:18:16 -07:00
James Bottomley
0dec8c0d67 scsi_lib: correctly retry failed zero length REQ_TYPE_FS commands
commit a621bac3044ed6f7ec5fa0326491b2d4838bfa93 upstream.

When SCSI was written, all commands coming from the filesystem
(REQ_TYPE_FS commands) had data.  This meant that our signal for needing
to complete the command was the number of bytes completed being equal to
the number of bytes in the request.  Unfortunately, with the advent of
flush barriers, we can now get zero length REQ_TYPE_FS commands, which
confuse this logic because they satisfy the condition every time.  This
means they never get retried even for retryable conditions, like UNIT
ATTENTION because we complete them early assuming they're done.  Fix
this by special casing the early completion condition to recognise zero
length commands with errors and let them drop through to the retry code.

Reported-by: Sebastian Parschauer <s.parschauer@gmx.de>
Signed-off-by: James E.J. Bottomley <jejb@linux.vnet.ibm.com>
Tested-by: Jack Wang <jinpu.wang@profitbricks.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2016-06-24 10:18:16 -07:00
Venkat Gopalakrishnan
a8de60e7e7 scsi: ufs-qcom: Fix null pointer dereference
Validate the existence of pm qos groups before accessing them,
to fix null pointer dereference.

Change-Id: Iddb96afac87cf3e7a1cc48f04b3c550e81bdae4b
Signed-off-by: Venkat Gopalakrishnan <venkatg@codeaurora.org>
2016-06-15 16:11:54 -07:00
Subhash Jadavani
7ddb4e75b6 scsi: ufs: fix comments in ufshcd_quirk_tune_host_pa_tactivate
Comments for ufshcd_quirk_tune_host_pa_tactivate() function doesn't
match the purpose of it. This change fixes the comments to describe
what function is actually doing.

Change-Id: I462a750aa6ee69f588b4bbcf5cb030f9e7292951
Signed-off-by: Subhash Jadavani <subhashj@codeaurora.org>
2016-06-10 15:11:35 -07:00
Andrey Markovytch
110aebe867 scsi: ufs: ICE 3.0 changes
ICE 3.0 crypto sequences were changed, CTRL_INFO register
no longer exists and doesn't need to be configured. The configuration
is done via utrd.

Change-Id: I5d69436ec59476fc5cd427458d79f8c99266f243
Signed-off-by: Andrey Markovytch <andreym@codeaurora.org>
2016-06-09 15:12:13 -07:00
Venkat Gopalakrishnan
813edfeb4d scsi: ufs-qcom : Add quirk for broken auto hibern8
Some platforms might not support auto hibern8 even though the
controller exposes this capability. Add a quirk to disable
auto hibern8 for such platforms.

Change-Id: I4a027f89deddff4735df45da9cffbfb1849af5f4
Signed-off-by: Venkat Gopalakrishnan <venkatg@codeaurora.org>
2016-06-08 15:15:39 -07:00
Venkat Gopalakrishnan
8e338f8fdf scsi: ufs-qcom: add svs2 support
QCOM UFS host controller v3.0.0 supports SVS2 voltage scaling mode
that allows lowest power consumption in HS G1. The link must be put
in hibern8 state before configuring the PHY to enter SVS2 mode.
The voltage can be reduced after this to SVS2 level.
Make the necessary change to support this on the qcom ufs variant.

Change-Id: Iba2ebe38c4ec1422931f2a696d9e5ca01b11a987
Signed-off-by: Venkat Gopalakrishnan <venkatg@codeaurora.org>
2016-06-08 15:13:58 -07:00
Venkat Gopalakrishnan
e1fcf7ef3d scsi: ufs: add new get_scale_down_gear vops
Each ufs controller variant can work with various gear speeds that
can be supported at a low voltage corner. Add an ops function to
query the gear supported to scale down.

Also make the hibern8 entry/exit function non static as the variant
drivers might need to call hibern8 entry/exit when scaling down to
a lower gear.

Change-Id: I50008a892c8c21a4a3361998d76a2f8cbc2995bb
Signed-off-by: Venkat Gopalakrishnan <venkatg@codeaurora.org>
2016-06-08 15:13:42 -07:00
Venkat Gopalakrishnan
cad3a64d0c scsi: ufs-qcom: add auto hibern8 support
QCOM UFS controller version 3.0.0 supports the auto hibern8
feature as defined by the UFS HCI v2.0 specification.
Make necessary changes to enable this during host controller
initialization.

Change-Id: I5a048629dade92fe79631ba30d3b3e280a77d4e6
Signed-off-by: Venkat Gopalakrishnan <venkatg@codeaurora.org>
2016-06-08 15:12:49 -07:00
Venkat Gopalakrishnan
dbd6e84bff scsi: ufs: add ufshcd_dme_rmw wrapper
Add a wrapper to get/modify/set DME attribute.

Change-Id: Ife2ae05950e6c437bef779955432d91d5117d49b
Signed-off-by: Venkat Gopalakrishnan <venkatg@codeaurora.org>
2016-06-08 15:12:33 -07:00
Venkat Gopalakrishnan
f0a5174e94 scsi: ufs: add auto hibern8 support
UFS HCI v2.0 specification adds support for auto hibern8.
Add support to enable this in the ufs host controller driver.

Change-Id: I57e5be8eae4b2cf70a2a9d9c81c9a54a24e03e71
Signed-off-by: Venkat Gopalakrishnan <venkatg@codeaurora.org>
2016-06-08 15:12:20 -07:00
Raghava Aditya Renukunta
9a11bd2d14 aacraid: Fix for KDUMP driver hang
commit 78cbccd3bd683c295a44af8050797dc4a41376ff upstream.

When KDUMP is triggered the driver first talks to the firmware in INTX
mode, but the adapter firmware is still in MSIX mode. Therefore the first
driver command hangs since the driver is waiting for an INTX response and
firmware gives a MSIX response. If when the OS is installed on a RAID
drive created by the adapter KDUMP will hang since the driver does not
receive a response in sync mode.

Fixed by: Change the firmware to INTX mode if it is in MSIX mode before
sending the first sync command.

Signed-off-by: Raghava Aditya Renukunta <RaghavaAditya.Renukunta@microsemi.com>
Reviewed-by: Johannes Thumshirn <jthumshirn@suse.de>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2016-06-07 18:14:34 -07:00
Raghava Aditya Renukunta
0f0a9a1866 aacraid: Fix for aac_command_thread hang
commit fc4bf75ea300a5e62a2419f89dd0e22189dd7ab7 upstream.

Typically under error conditions, it is possible for aac_command_thread()
to miss the wakeup from kthread_stop() and go back to sleep, causing it
to hang aac_shutdown.

In the observed scenario, the adapter is not functioning correctly and so
aac_fib_send() never completes (or time-outs depending on how it was
called). Shortly after aac_command_thread() starts it performs
aac_fib_send(SendHostTime) which hangs. When aac_probe_one
/aac_get_adapter_info send time outs, kthread_stop is called which breaks
the command thread out of it's hang.

The code will still go back to sleep in schedule_timeout() without
checking kthread_should_stop() so it causes aac_probe_one to hang until
the schedule_timeout() which is 30 minutes.

Fixed by: Adding another kthread_should_stop() before schedule_timeout()
Signed-off-by: Raghava Aditya Renukunta <RaghavaAditya.Renukunta@microsemi.com>
Reviewed-by: Johannes Thumshirn <jthumshirn@suse.de>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2016-06-07 18:14:34 -07:00
Raghava Aditya Renukunta
9a5ca989b5 aacraid: Relinquish CPU during timeout wait
commit 07beca2be24cc710461c0b131832524c9ee08910 upstream.

aac_fib_send has a special function case for initial commands during
driver initialization using wait < 0(pseudo sync mode). In this case,
the command does not sleep but rather spins checking for timeout.This
loop is calls cpu_relax() in an attempt to allow other processes/threads
to use the CPU, but this function does not relinquish the CPU and so the
command will hog the processor. This was observed in a KDUMP
"crashkernel" and that prevented the "command thread" (which is
responsible for completing the command from being timed out) from
starting because it could not get the CPU.

Fixed by replacing "cpu_relax()" call with "schedule()"
Signed-off-by: Raghava Aditya Renukunta <RaghavaAditya.Renukunta@microsemi.com>
Reviewed-by: Johannes Thumshirn <jthumshirn@suse.de>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2016-06-07 18:14:33 -07:00
Johannes Thumshirn
9acf553534 Revert "scsi: fix soft lockup in scsi_remove_target() on module removal"
commit 305c2e71b3d733ec065cb716c76af7d554bd5571 upstream.

Now that we've done a more comprehensive fix with the intermediate
target state we can remove the previous hack introduced with commit
90a88d6ef88e ("scsi: fix soft lockup in scsi_remove_target() on module
removal").

Signed-off-by: Johannes Thumshirn <jthumshirn@suse.de>
Reviewed-by: Ewan D. Milne <emilne@redhat.com>
Reviewed-by: Hannes Reinecke <hare@suse.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2016-06-01 12:15:54 -07:00
Johannes Thumshirn
210588c034 scsi: Add intermediate STARGET_REMOVE state to scsi_target_state
commit f05795d3d771f30a7bdc3a138bf714b06d42aa95 upstream.

Add intermediate STARGET_REMOVE state to scsi_target_state to avoid
running into the BUG_ON() in scsi_target_reap(). The STARGET_REMOVE
state is only valid in the path from scsi_remove_target() to
scsi_target_destroy() indicating this target is going to be removed.

This re-fixes the problem introduced in commits bc3f02a795 ("[SCSI]
scsi_remove_target: fix softlockup regression on hot remove") and
4099819356 ("scsi: restart list search after unlock in
scsi_remove_target") in a more comprehensive way.

[mkp: Included James' fix for scsi_target_destroy()]

Signed-off-by: Johannes Thumshirn <jthumshirn@suse.de>
Fixes: 4099819356
Reported-by: Sergey Senozhatsky <sergey.senozhatsky@gmail.com>
Tested-by: Sergey Senozhatsky <sergey.senozhatsky@gmail.com>
Reviewed-by: Ewan D. Milne <emilne@redhat.com>
Reviewed-by: Hannes Reinecke <hare@suse.com>
Reviewed-by: James Bottomley <jejb@linux.vnet.ibm.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2016-06-01 12:15:54 -07:00
Johannes Thumshirn
4c127a3e21 qla1280: Don't allocate 512kb of host tags
commit 2bcbc81421c511ef117cadcf0bee9c4340e68db0 upstream.

The qla1280 driver sets the scsi_host_template's can_queue field to 0xfffff
which results in an allocation failure when allocating the block layer tags
for the driver's queues. This was introduced with the change for host wide
tags in commit 64d513ac31 - "scsi: use host wide tags by default".

Reduce can_queue to MAX_OUTSTANDING_COMMANDS (512) to solve the allocation
error.

Signed-off-by: Johannes Thumshirn <jthumshirn@suse.de>
Fixes: 64d513ac31 - "scsi: use host wide tags by default"
Cc: Laura Abbott <labbott@redhat.com>
Cc: Michael Reed <mdr@sgi.com>
Reviewed-by: Laurence Oberman <loberman@redhat.com>
Reviewed-by: Lee Duncan <lduncan@suse.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
Signed-off-by: James Bottomley <jejb@linux.vnet.ibm.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2016-05-18 17:06:52 -07:00
Arnd Bergmann
8e9a156140 lpfc: fix misleading indentation
commit aeb6641f8ebdd61939f462a8255b316f9bfab707 upstream.

gcc-6 complains about the indentation of the lpfc_destroy_vport_work_array()
call in lpfc_online(), which clearly doesn't look right:

drivers/scsi/lpfc/lpfc_init.c: In function 'lpfc_online':
drivers/scsi/lpfc/lpfc_init.c:2880:3: warning: statement is indented as if it were guarded by... [-Wmisleading-indentation]
   lpfc_destroy_vport_work_array(phba, vports);
   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
drivers/scsi/lpfc/lpfc_init.c:2863:2: note: ...this 'if' clause, but it is not
  if (vports != NULL)
  ^~

Looking at the patch that introduced this code, it's clear that the
behavior is correct and the indentation is wrong.

This fixes the indentation and adds curly braces around the previous
if() block for clarity, as that is most likely what caused the code
to be misindented in the first place.

Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Fixes: 549e55cd2a ("[SCSI] lpfc 8.2.2 : Fix locking around HBA's port_list")
Reviewed-by: Sebastian Herbszt <herbszt@gmx.de>
Reviewed-by: Hannes Reinecke <hare@suse.com>
Reviewed-by: Ewan D. Milne <emilne@redhat.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2016-05-11 11:21:12 +02:00
Arnd Bergmann
5b6e810f35 megaraid_sas: add missing curly braces in ioctl handler
commit 3deb9438d34a09f6796639b652a01d110aca9f75 upstream.

gcc-6 found a dubious indentation in the megasas_mgmt_fw_ioctl
function:

drivers/scsi/megaraid/megaraid_sas_base.c: In function 'megasas_mgmt_fw_ioctl':
drivers/scsi/megaraid/megaraid_sas_base.c:6658:4: warning: statement is indented as if it were guarded by... [-Wmisleading-indentation]
    kbuff_arr[i] = NULL;
    ^~~~~~~~~
drivers/scsi/megaraid/megaraid_sas_base.c:6653:3: note: ...this 'if' clause, but it is not
   if (kbuff_arr[i])
   ^~

The code is actually correct, as there is no downside in clearing a NULL
pointer again.

This clarifies the code and avoids the warning by adding extra curly
braces.

Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Fixes: 90dc9d98f0 ("megaraid_sas : MFI MPT linked list corruption fix")
Reviewed-by: Hannes Reinecke <hare@suse.com>
Acked-by: Sumit Saxena <sumit.saxena@broadcom.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2016-05-04 14:48:54 -07:00
Arnd Bergmann
9d9fefc828 scsi_dh: force modular build if SCSI is a module
commit 0c994c03c926d26ce48e6bbabbbe60366044fcae upstream.

When the scsi_dh core was moved into the scsi core module,
CONFIG_SCSI_DH became a 'bool' option, and now anything depending on it
can be built-in even when CONFIG_SCSI=m. This of course cannot link
successfully:

drivers/scsi/built-in.o: In function `rdac_init':
scsi_dh_alua.c:(.init.text+0x14): undefined reference to `scsi_register_device_handler'
scsi_dh_alua.c:(.init.text+0x64): undefined reference to `scsi_unregister_device_handler'
drivers/scsi/built-in.o: In function `alua_init':
scsi_dh_alua.c:(.init.text+0xb0): undefined reference to `scsi_register_device_handler'

As a workaround, this adds an extra dependency on CONFIG_SCSI, so
Kconfig can figure out whether built-in is allowed or not.

Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Fixes: 086b91d052 ("scsi_dh: integrate into the core SCSI code")
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2016-05-04 14:48:51 -07:00
Andrey Markovytch
d9d0ee4b78 scsi: ufs: qcom-ice: block further requests until ICE config is complete
Requests that need to go through the ICE must be setup with a key
before and have a key index ready. In cases where the key is not
ready as it is not in the key cache, the ICE 'config_start' callback
returns -EAGAIN and we need to block further requests and call
'config_start' again from a non-atomic context until key setup
is ready and then resume requests handling.

Change-Id: I51ff1e99240386ce533b5ab3f5f024043532b0ad
Signed-off-by: Gilad Broner <gbroner@codeaurora.org>
Signed-off-by: Andrey Markovytch <andreym@codeaurora.org>
2016-04-25 17:46:15 -07:00
Andrey Markovytch
fe9cbb77bf crypto: ice: split the config callback
The requests configuration has to be split so clients can inform
ICE laeyr when the request is completed.
Rename the 'config' callback to 'config_start' and add
'config_end' callback.

Change-Id: Ife0b5b62805b827449a1bb1002348db445f03c60
Signed-off-by: Gilad Broner <gbroner@codeaurora.org>
Signed-off-by: Andrey Markovytch <andreym@codeaurora.org>
2016-04-25 17:45:49 -07:00
Andrey Markovytch
e29851c910 PFK: fix race between key set and key invalidate in TZ
When working with multiple files and multiple threads, the following
scenario can occur:
1. File Close -> Key cache removal -> context switch
2. Open new file -> occupy the entry cleaned in 1
   -> TZ_ES_SET_ICE_KEY -> context switch
3. Back to 1 -> TZ_ES_INVALIDATE_ICE_KEY
4. Back to 2 -> ICE uses the key that is already invalid
5. Crash due to PARTIALLY_SET_KEY_USED

To fix this, pfk must know when requests using some key are completed.
Only then key removal shall be allowed and until then key invalidation
must wait.
A new callback was added to let clients inform PFK when requests end.

Change-Id: Id7f8a3302fac9fafd1203d8d56ca13d59b45bbd5
Signed-off-by: Gilad Broner <gbroner@codeaurora.org>
Signed-off-by: Andrey Markovytch <andreym@codeaurora.org>
2016-04-25 17:45:36 -07:00
Venkat Gopalakrishnan
82e1a184e6 scsi: ufs-qcom: Fix bus scaling usage in UFS driver
Use QCOM_BUS_SCALING as opposed to MSM_BUS_SCALING

Change-Id: I23945a040914d55aa483cfec6ef81e7342421f2e
Signed-off-by: Venkat Gopalakrishnan <venkatg@codeaurora.org>
2016-04-22 15:06:07 -07:00
Martin K. Petersen
a7ac655b62 sd: Fix excessive capacity printing on devices with blocks bigger than 512 bytes
commit f08bb1e0dbdd0297258d0b8cd4dbfcc057e57b2a upstream.

During revalidate we check whether device capacity has changed before we
decide whether to output disk information or not.

The check for old capacity failed to take into account that we scaled
sdkp->capacity based on the reported logical block size. And therefore
the capacity test would always fail for devices with sectors bigger than
512 bytes and we would print several copies of the same discovery
information.

Avoid scaling sdkp->capacity and instead adjust the value on the fly
when setting the block device capacity and generating fake C/H/S
geometry.

Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
Reported-by: Hannes Reinecke <hare@suse.de>
Reviewed-by: Hannes Reinicke <hare@suse.de>
Reviewed-by: Ewan Milne <emilne@redhat.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2016-04-20 15:42:12 +09:00
Hannes Reinecke
9835db39bb scsi_common: do not clobber fixed sense information
commit ba08311647892cc7912de74525fd78416caf544a upstream.

For fixed sense the information field is 32 bits, to we need to truncate
the information field to avoid clobbering the sense code.

Fixes: a1524f226a ("libata-eh: Set 'information' field for autosense")
Signed-off-by: Hannes Reinecke <hare@suse.com>
Reviewed-by: Lee Duncan <lduncan@suse.com>
Reviewed-by: Bart Van Assche <bart.vanassche@sandisk.com>
Reviewed-by: Ewan D. Milne <emilne@redhat.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2016-04-12 09:09:05 -07:00
Gabriel Krisman Bertazi
6677a2ab03 ipr: Fix regression when loading firmware
commit 21b81716c6bff24cda52dc75588455f879ddbfe9 upstream.

Commit d63c7dd5bcb9 ("ipr: Fix out-of-bounds null overwrite") removed
the end of line handling when storing the update_fw sysfs attribute.
This changed the userpace API because it started refusing writes
terminated by a line feed, which broke the update tools we already have.

This patch re-adds that handling, so both a write terminated by a line
feed or not can make it through with the update.

Fixes: d63c7dd5bcb9 ("ipr: Fix out-of-bounds null overwrite")
Signed-off-by: Gabriel Krisman Bertazi <krisman@linux.vnet.ibm.com>
Cc: Insu Yun <wuninsu@gmail.com>
Acked-by: Brian King <brking@linux.vnet.ibm.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
Cc: Ben Hutchings <ben@decadent.org.uk>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2016-04-12 09:08:58 -07:00
Insu Yun
a918d2bcea ipr: Fix out-of-bounds null overwrite
commit d63c7dd5bcb9441af0526d370c43a65ca2c980d9 upstream.

Return value of snprintf is not bound by size value, 2nd argument.
(https://www.kernel.org/doc/htmldocs/kernel-api/API-snprintf.html).
Return value is number of printed chars, can be larger than 2nd
argument.  Therefore, it can write null byte out of bounds ofbuffer.
Since snprintf puts null, it does not need to put additional null byte.

Signed-off-by: Insu Yun <wuninsu@gmail.com>
Reviewed-by: Shane Seymour <shane.seymour@hpe.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
Cc: Ben Hutchings <ben@decadent.org.uk>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2016-04-12 09:08:58 -07:00
Alan
b9d26f81ae aic7xxx: Fix queue depth handling
commit 5a51a7abca133860a6f4429655a9eda3c4afde32 upstream.

We were setting the queue depth correctly, then setting it back to
two. If you hit this as a bisection point then please send me an email
as it would imply we've been hiding other bugs with this one.

Signed-off-by: Alan Cox <alan@linux.intel.com>
Reviewed-by: Hannes Reinicke <hare@suse.de>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2016-04-12 09:08:39 -07:00
Maurizio Lombardi
e760edfb7b be2iscsi: set the boot_kset pointer to NULL in case of failure
commit 84bd64993f916bcf86270c67686ecf4cea7b8933 upstream.

In beiscsi_setup_boot_info(), the boot_kset pointer should be set to
NULL in case of failure otherwise an invalid pointer dereference may
occur later.

Signed-off-by: Maurizio Lombardi <mlombard@redhat.com>
Reviewed-by: Johannes Thumshirn <jthumshirn@suse.de>
Reviewed-by: Jitendra Bhivare <jitendra.bhivare@broadcom.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2016-04-12 09:08:39 -07:00
Vitaly Kuznetsov
c1f327046b scsi: storvsc: fix SRB_STATUS_ABORTED handling
commit ff06c5ffbcb4ffa542fb80c897be977956fafecc upstream.

Commit 3209f9d780 ("scsi: storvsc: Fix a bug in the handling of SRB
status flags") filtered SRB_STATUS_AUTOSENSE_VALID out effectively making
the (SRB_STATUS_ABORTED | SRB_STATUS_AUTOSENSE_VALID) case a dead code. The
logic from this branch (e.g. storvsc_device_scan() call) is still required,
fix the check.

Fixes: 3209f9d780 ("scsi: storvsc: Fix a bug in the handling of SRB status flags")
Signed-off-by: Vitaly Kuznetsov <vkuznets@redhat.com>
Acked-by: K. Y. Srinivasan <kys@microsoft.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2016-04-12 09:08:39 -07:00
Martin K. Petersen
67aa7e6dd9 sd: Fix discard granularity when LBPRZ=1
commit 6540a65da90c09590897310e31993b1f6e28485a upstream.

Commit 397737223c ("sd: Make discard granularity match logical block
size when LBPRZ=1") accidentally set the granularity to one byte instead
of one logical block on devices that provide deterministic zeroes after
UNMAP.

Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
Reported-by: Mike Snitzer <snitzer@redhat.com>
Reviewed-by: Ewan Milne <emilne@redhat.com>
Reviewed-by: Bart Van Assche <bart.vanassche@sandisk.com>
Fixes: 397737223c
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2016-04-12 09:08:39 -07:00
Raghava Aditya Renukunta
e468298bd4 aacraid: Set correct msix count for EEH recovery
commit ecc479e00db8eb110b200afe1effcb3df20ca7ae upstream.

During EEH recovery number of online CPU's might change thereby changing
the number of MSIx vectors. Since each fib is allocated to a vector,
changes in the number of vectors causes fib to be sent thru invalid
vectors.In addition the correct number of MSIx vectors is not updated in
the INIT struct sent to the controller, when it is reinitialized.

Fixed by reassigning vectors to fibs based on the updated number of MSIx
vectors and updating the INIT structure before sending to controller.

Fixes: MSI-X vector calculation for suspend/resume
Signed-off-by: Raghava Aditya Renukunta <raghavaaditya.renukunta@pmcs.com>
Reviewed-by: Shane Seymour <shane.seymour@hpe.com>
Reviewed-by: Johannes Thumshirn <jthushirn@suse.de>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2016-04-12 09:08:38 -07:00
Raghava Aditya Renukunta
f3a3019dfc aacraid: Fix memory leak in aac_fib_map_free
commit f88fa79a61726ce9434df9b4aede36961f709f17 upstream.

aac_fib_map_free() calls pci_free_consistent() without checking that
dev->hw_fib_va is not NULL and dev->max_fib_size is not zero.If they are
indeed NULL/0, this will result in a hang as pci_free_consistent() will
attempt to invalidate cache for the entire 64-bit address space
(which would take a very long time).

Fixed by adding a check to make sure that dev->hw_fib_va and
dev->max_fib_size are not NULL and 0 respectively.

Fixes: 9ad5204d6 - "[SCSI]aacraid: incorrect dma mapping mask during blinked recover or user initiated reset"
Signed-off-by: Raghava Aditya Renukunta <raghavaaditya.renukunta@pmcs.com>
Reviewed-by: Johannes Thumshirn <jthumshirn@suse.de>
Reviewed-by: Tomas Henzl <thenzl@redhat.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2016-04-12 09:08:38 -07:00
Raghava Aditya Renukunta
1624297ccc aacraid: Fix RRQ overload
commit 3f4ce057d51a9c0ed9b01ba693df685d230ffcae upstream.

The driver utilizes an array of atomic variables to keep track of IO
submissions to each vector. To submit an IO multiple threads iterate
through the array to find a vector which has empty slots to send an
IO. The reading and updating of the variable is not atomic, causing race
conditions when a thread uses a full vector to submit an IO.

Fixed by mapping each FIB to a vector, the submission path then uses
said vector to submit IO thereby removing the possibly of a race
condition.The vector assignment is started from 1 since vector 0 is
reserved for the use of AIF management FIBS.If the number of MSIx
vectors is 1 (MSI or INTx mode) then all the fibs are allocated to
vector 0.

Fixes: 495c0217 "aacraid: MSI-x support"
Signed-off-by: Raghava Aditya Renukunta <raghavaaditya.renukunta@pmcs.com>
Reviewed-by: Johannes Thumshirn <jthumshirn@suse.de>
Reviewed-by: Tomas Henzl <thenzl@redhat.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2016-04-12 09:08:38 -07:00
Douglas Gilbert
f5967a77df sg: fix dxferp in from_to case
commit 5ecee0a3ee8d74b6950cb41e8989b0c2174568d4 upstream.

One of the strange things that the original sg driver did was let the
user provide both a data-out buffer (it followed the sg_header+cdb)
_and_ specify a reply length greater than zero. What happened was that
the user data-out buffer was copied into some kernel buffers and then
the mid level was told a read type operation would take place with the
data from the device overwriting the same kernel buffers. The user would
then read those kernel buffers back into the user space.

From what I can tell, the above action was broken by commit fad7f01e61
("sg: set dxferp to NULL for READ with the older SG interface") in 2008
and syzkaller found that out recently.

Make sure that a user space pointer is passed through when data follows
the sg_header structure and command.  Fix the abnormal case when a
non-zero reply_len is also given.

Fixes: fad7f01e61
Signed-off-by: Douglas Gilbert <dgilbert@interlog.com>
Reviewed-by: Ewan Milne <emilne@redhat.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2016-04-12 09:08:38 -07:00