David S. Miller [Sun, 19 Oct 2014 03:03:09 +0000 (23:03 -0400)]
sparc64: Fix corrupted thread fault code.
Every path that ends up at do_sparc64_fault() must install a valid
FAULT_CODE_* bitmask in the per-thread fault code byte.
Two paths leading to the label winfix_trampoline (which expects the
FAULT_CODE_* mask in register %g4) were not doing so:
1) For pre-hypervisor TLB protection violation traps, if we took
the 'winfix_trampoline' path we wouldn't have %g4 initialized
with the FAULT_CODE_* value yet. Resulting in using the
TLB_TAG_ACCESS register address value instead.
2) In the TSB miss path, when we notice that we are going to use a
hugepage mapping, but we haven't allocated the hugepage TSB yet, we
still have to take the window fixup case into consideration and
in that particular path we leave %g4 not setup properly.
Errors on this sort were largely invisible previously, but after
commit
4ccb9272892c33ef1c19a783cfa87103b30c2784 ("sparc64: sun4v TLB
error power off events") we now have a fault_code mask bit
(FAULT_CODE_BAD_RA) that triggers due to this bug.
FAULT_CODE_BAD_RA triggers because this bit is set in TLB_TAG_ACCESS
(see #1 above) and thus we get seemingly random bus errors triggered
for user processes.
Fixes:
4ccb9272892c ("sparc64: sun4v TLB error power off events")
Reported-by: Meelis Roos <mroos@linux.ee>
Signed-off-by: David S. Miller <davem@davemloft.net>
Linus Torvalds [Sun, 19 Oct 2014 01:11:04 +0000 (18:11 -0700)]
Merge branch 'for-linus' of git://git.infradead.org/users/vkoul/slave-dma
Pull slave-dmaengine updates from Vinod Koul:
"For dmaengine contributions we have:
- designware cleanup by Andy
- my series moving device_control users to dmanegine_xxx APIs for
later removal of device_control API
- minor fixes spread over drivers mainly mv_xor, pl330, mmp, imx-sdma
etc"
* 'for-linus' of git://git.infradead.org/users/vkoul/slave-dma: (60 commits)
serial: atmel: add missing dmaengine header
dmaengine: remove FSLDMA_EXTERNAL_START
dmaengine: freescale: remove FSLDMA_EXTERNAL_START control method
carma-fpga: move to fsl_dma_external_start()
carma-fpga: use dmaengine_xxx() API
dmaengine: freescale: add and export fsl_dma_external_start()
dmaengine: add dmaengine_prep_dma_sg() helper
video: mx3fb: use dmaengine_terminate_all() API
serial: sh-sci: use dmaengine_terminate_all() API
net: ks8842: use dmaengine_terminate_all() API
mtd: sh_flctl: use dmaengine_terminate_all() API
mtd: fsmc_nand: use dmaengine_terminate_all() API
V4L2: mx3_camer: use dmaengine_pause() API
dmaengine: coh901318: use dmaengine_terminate_all() API
pata_arasan_cf: use dmaengine_terminate_all() API
dmaengine: edma: check for echan->edesc => NULL in edma_dma_pause()
dmaengine: dw: export probe()/remove() and Co to users
dmaengine: dw: enable and disable controller when needed
dmaengine: dw: always export dw_dma_{en,dis}able
dmaengine: dw: introduce dw_dma_on() helper
...
Linus Torvalds [Sun, 19 Oct 2014 01:03:02 +0000 (18:03 -0700)]
Merge tag 'fbdev-3.18' of git://git./linux/kernel/git/tomba/linux
Pull fbdev updates from Tomi Valkeinen:
- new 6x10 font
- various small fixes and cleanups
* tag 'fbdev-3.18' of git://git.kernel.org/pub/scm/linux/kernel/git/tomba/linux: (30 commits)
fonts: Add 6x10 font
videomode: provide dummy inline functions for !CONFIG_OF
video/atmel_lcdfb: Introduce regulator support
fbdev: sh_mobile_hdmi: Re-init regs before irq re-enable on resume
framebuffer: fix screen corruption when copying
framebuffer: fix border color
arm, fbdev, omap2, LLVMLinux: Remove nested function from omapfb
arm, fbdev, omap2, LLVMLinux: Remove nested function from omap2 dss
video: fbdev: valkyriefb.c: use container_of to resolve fb_info_valkyrie from fb_info
video: fbdev: pxafb.c: use container_of to resolve pxafb_info/layer from fb_info
video: fbdev: cyber2000fb.c: use container_of to resolve cfb_info from fb_info
video: fbdev: controlfb.c: use container_of to resolve fb_info_control from fb_info
video: fbdev: sa1100fb.c: use container_of to resolve sa1100fb_info from fb_info
video: fbdev: stifb.c: use container_of to resolve stifb_info from fb_info
video: fbdev: sis: sis_main.c: Cleaning up missing null-terminate in conjunction with strncpy
video: valkyriefb: Fix unused variable warning in set_valkyrie_clock()
video: fbdev: use %*ph specifier to dump small buffers
video: mx3fb: always enable BACKLIGHT_LCD_SUPPORT
video: fbdev: au1200fb: delete double assignment
video: fbdev: sis: delete double assignment
...
Linus Torvalds [Sat, 18 Oct 2014 21:32:31 +0000 (14:32 -0700)]
Merge tag 'kvm-arm-for-3.18-take-2' of git://git./linux/kernel/git/kvmarm/kvmarm
Pull second batch of changes for KVM/{arm,arm64} from Marc Zyngier:
"The most obvious thing is the sizeable MMU changes to support 48bit
VAs on arm64.
Summary:
- support for 48bit IPA and VA (EL2)
- a number of fixes for devices mapped into guests
- yet another VGIC fix for BE
- a fix for CPU hotplug
- a few compile fixes (disabled VGIC, strict mm checks)"
[ I'm pulling directly from Marc at the request of Paolo Bonzini, whose
backpack was stolen at Düsseldorf airport and will do new keys and
rebuild his web of trust. - Linus ]
* tag 'kvm-arm-for-3.18-take-2' of git://git.kernel.org/pub/scm/linux/kernel/git/kvmarm/kvmarm:
arm/arm64: KVM: Fix BE accesses to GICv2 EISR and ELRSR regs
arm: kvm: STRICT_MM_TYPECHECKS fix for user_mem_abort
arm/arm64: KVM: Ensure memslots are within KVM_PHYS_SIZE
arm64: KVM: Implement 48 VA support for KVM EL2 and Stage-2
arm/arm64: KVM: map MMIO regions at creation time
arm64: kvm: define PAGE_S2_DEVICE as read-only by default
ARM: kvm: define PAGE_S2_DEVICE as read-only by default
arm/arm64: KVM: add 'writable' parameter to kvm_phys_addr_ioremap
arm/arm64: KVM: fix potential NULL dereference in user_mem_abort()
arm/arm64: KVM: use __GFP_ZERO not memset() to get zeroed pages
ARM: KVM: fix vgic-disabled build
arm: kvm: fix CPU hotplug
Linus Torvalds [Sat, 18 Oct 2014 21:24:36 +0000 (14:24 -0700)]
Merge branch 'upstream' of git://git.linux-mips.org/ralf/upstream-linus
Pull MIPS updates from Ralf Baechle:
"This is the MIPS pull request for the next kernel:
- Zubair's patch series adds CMA support for MIPS. Doing so it also
touches ARM64 and x86.
- remove the last instance of IRQF_DISABLED from arch/mips
- updates to two of the MIPS defconfig files.
- cleanup of how cache coherency bits are handled on MIPS and
implement support for write-combining.
- platform upgrades for Alchemy
- move MIPS DTS files to arch/mips/boot/dts/"
* 'upstream' of git://git.linux-mips.org/pub/scm/ralf/upstream-linus: (24 commits)
MIPS: ralink: remove deprecated IRQF_DISABLED
MIPS: pgtable.h: Implement the pgprot_writecombine function for MIPS
MIPS: cpu-probe: Set the write-combine CCA value on per core basis
MIPS: pgtable-bits: Define the CCA bit for WC writes on Ingenic cores
MIPS: pgtable-bits: Move the CCA bits out of the core's ifdef blocks
MIPS: DMA: Add cma support
x86: use generic dma-contiguous.h
arm64: use generic dma-contiguous.h
asm-generic: Add dma-contiguous.h
MIPS: BPF: Add new emit_long_instr macro
MIPS: ralink: Move device-trees to arch/mips/boot/dts/
MIPS: Netlogic: Move device-trees to arch/mips/boot/dts/
MIPS: sead3: Move device-trees to arch/mips/boot/dts/
MIPS: Lantiq: Move device-trees to arch/mips/boot/dts/
MIPS: Octeon: Move device-trees to arch/mips/boot/dts/
MIPS: Add support for building device-tree binaries
MIPS: Create common infrastructure for building built-in device-trees
MIPS: SEAD3: Enable DEVTMPFS
MIPS: SEAD3: Regenerate defconfigs
MIPS: Alchemy: DB1300: Add touch penirq support
...
Linus Torvalds [Sat, 18 Oct 2014 21:22:32 +0000 (14:22 -0700)]
Merge branch 'for-linus' of git://git./linux/kernel/git/mpe/linux
Pull powerpc fix from Michael Ellerman:
"There was a bit of a misunderstanding between us and the ARM guys in
the device tree PCI code, which is breaking virtio on powerpc.
This is the minimal fix until we can sort it out properly"
* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/mpe/linux:
powerpc/pci: Fix IO space breakage after of_pci_range_to_resource() change
Linus Torvalds [Sat, 18 Oct 2014 20:39:19 +0000 (13:39 -0700)]
Merge branch 'for-linus' of git://git.samba.org/sfrench/cifs-2.6
Pull cifs/smb3 updates from Steve French:
"Improved SMB3 support (symlink and device emulation, and remapping by
default the 7 reserved posix characters) and a workaround for cifs
mounts to Mac (working around a commonly encountered Mac server bug)"
* 'for-linus' of git://git.samba.org/sfrench/cifs-2.6:
[CIFS] Remove obsolete comment
Check minimum response length on query_network_interface
Workaround Mac server problem
Remap reserved posix characters by default (part 3/3)
Allow conversion of characters in Mac remap range (part 2)
Allow conversion of characters in Mac remap range. Part 1
mfsymlinks support for SMB2.1/SMB3. Part 2 query symlink
Add mfsymlinks support for SMB2.1/SMB3. Part 1 create symlink
Allow mknod and mkfifo on SMB2/SMB3 mounts
add defines for two new file attributes
Linus Torvalds [Sat, 18 Oct 2014 20:37:19 +0000 (13:37 -0700)]
Merge tag 'dlm-3.18' of git://git./linux/kernel/git/teigland/linux-dlm
Pull dlm fix from David Teigland:
"This includes a single commit fixing a missing endian conversion"
* tag 'dlm-3.18' of git://git.kernel.org/pub/scm/linux/kernel/git/teigland/linux-dlm:
dlm: fix missing endian conversion of rcom_status flags
Linus Torvalds [Sat, 18 Oct 2014 20:32:17 +0000 (13:32 -0700)]
Merge branch 'for-linus-update' of git://git./linux/kernel/git/mason/linux-btrfs
Pull btrfs data corruption fix from Chris Mason:
"I'm testing a pull with more fixes, but wanted to get this one out so
Greg can pick it up.
The corruption isn't easy to hit, you have to do a readonly snapshot
and have orphans in the snapshot. But my review and testing missed
the bug. Filipe has added a better xfstest to cover it"
* 'for-linus-update' of git://git.kernel.org/pub/scm/linux/kernel/git/mason/linux-btrfs:
Revert "Btrfs: race free update of commit root for ro snapshots"
Linus Torvalds [Sat, 18 Oct 2014 20:25:03 +0000 (13:25 -0700)]
Merge tag 'please-pull-pstore' of git://git./linux/kernel/git/aegl/linux
Pull pstore fix from Tony Luck:
"Ensure unique filenames in pstore"
* tag 'please-pull-pstore' of git://git.kernel.org/pub/scm/linux/kernel/git/aegl/linux:
pstore: Fix duplicate {console,ftrace}-efi entries
Linus Torvalds [Sat, 18 Oct 2014 19:54:46 +0000 (12:54 -0700)]
Merge git://git./linux/kernel/git/aia21/ntfs
Pull NTFS update from Anton Altaparmakov:
"Here is a small NTFS update notably implementing FIBMAP ioctl for NTFS
by adding the bmap address space operation. People seem to still want
FIBMAP"
* git://git.kernel.org/pub/scm/linux/kernel/git/aia21/ntfs:
NTFS: Bump version to 2.1.31.
NTFS: Add bmap address space operation needed for FIBMAP ioctl.
NTFS: Remove changelog from Documentation/filesystems/ntfs.txt.
NTFS: Split ntfs_aops into ntfs_normal_aops and ntfs_compressed_aops in preparation for them diverging.
Linus Torvalds [Sat, 18 Oct 2014 19:52:08 +0000 (12:52 -0700)]
Merge tag 'nfs-for-3.18-2' of git://git.linux-nfs.org/projects/trondmy/linux-nfs
Pull NFS client updates from Trond Myklebust:
"Highlights include:
Stable fixes:
- fix an uninitialised pointer Oops in the writeback error path
- fix a bogus warning (and early exit from the loop) in nfs_generic_pgio()
Features:
- Add NFSv4.2 SEEK feature and client support for lseek(SEEK_HOLE/SEEK_DATA)
Other fixes:
- pnfs: replace broken pnfs_put_lseg_async
- Remove dead prototype for nfs4_insert_deviceid_node"
* tag 'nfs-for-3.18-2' of git://git.linux-nfs.org/projects/trondmy/linux-nfs:
NFS: Fix a bogus warning in nfs_generic_pgio
NFS: Fix an uninitialised pointer Oops in the writeback error path
NFSv4.1/pnfs: replace broken pnfs_put_lseg_async
NFSv4: Remove dead prototype for nfs4_insert_deviceid_node()
NFS: Implement SEEK
Linus Torvalds [Sat, 18 Oct 2014 19:25:30 +0000 (12:25 -0700)]
Merge tag 'dm-3.18' of git://git./linux/kernel/git/device-mapper/linux-dm
Pull device-mapper updates from Mike Snitzer:
"I rebased the DM tree ontop of linux-block.git's 'for-3.18/core' at
the beginning of October because DM core now depends on the newly
introduced bioset_create_nobvec() interface.
Summary:
- fix DM's long-standing excessive use of memory by leveraging the
new bioset_create_nobvec() interface when creating the DM's bioset
- fix a few bugs in dm-bufio and dm-log-userspace
- add DM core support for a DM multipath use-case that requires
loading DM tables that contain devices that have failed (by
allowing active and inactive DM tables to share dm_devs)
- add discard support to the DM raid target; like MD raid456 the user
must opt-in to raid456 discard support be specifying the
devices_handle_discard_safely=Y module param"
* tag 'dm-3.18' of git://git.kernel.org/pub/scm/linux/kernel/git/device-mapper/linux-dm:
dm log userspace: fix memory leak in dm_ulog_tfr_init failure path
dm bufio: when done scanning return from __scan immediately
dm bufio: update last_accessed when relinking a buffer
dm raid: add discard support for RAID levels 4, 5 and 6
dm raid: add discard support for RAID levels 1 and 10
dm: allow active and inactive tables to share dm_devs
dm mpath: stop queueing IO when no valid paths exist
dm: use bioset_create_nobvec()
dm: remove nr_iovecs parameter from alloc_tio()
Linus Torvalds [Sat, 18 Oct 2014 19:12:45 +0000 (12:12 -0700)]
Merge branch 'for-3.18/drivers' of git://git.kernel.dk/linux-block
Pull block layer driver update from Jens Axboe:
"This is the block driver pull request for 3.18. Not a lot in there
this round, and nothing earth shattering.
- A round of drbd fixes from the linbit team, and an improvement in
asender performance.
- Removal of deprecated (and unused) IRQF_DISABLED flag in rsxx and
hd from Michael Opdenacker.
- Disable entropy collection from flash devices by default, from Mike
Snitzer.
- A small collection of xen blkfront/back fixes from Roger Pau Monné
and Vitaly Kuznetsov"
* 'for-3.18/drivers' of git://git.kernel.dk/linux-block:
block: disable entropy contributions for nonrot devices
xen, blkfront: factor out flush-related checks from do_blkif_request()
xen-blkback: fix leak on grant map error path
xen/blkback: unmap all persistent grants when frontend gets disconnected
rsxx: Remove deprecated IRQF_DISABLED
block: hd: remove deprecated IRQF_DISABLED
drbd: use RB_DECLARE_CALLBACKS() to define augment callbacks
drbd: compute the end before rb_insert_augmented()
drbd: Add missing newline in resync progress display in /proc/drbd
drbd: reduce lock contention in drbd_worker
drbd: Improve asender performance
drbd: Get rid of the WORK_PENDING macro
drbd: Get rid of the __no_warn and __cond_lock macros
drbd: Avoid inconsistent locking warning
drbd: Remove superfluous newline from "resync_extents" debugfs entry.
drbd: Use consistent names for all the bi_end_io callbacks
drbd: Use better variable names
Linus Torvalds [Sat, 18 Oct 2014 18:53:51 +0000 (11:53 -0700)]
Merge branch 'for-3.18/core' of git://git.kernel.dk/linux-block
Pull core block layer changes from Jens Axboe:
"This is the core block IO pull request for 3.18. Apart from the new
and improved flush machinery for blk-mq, this is all mostly bug fixes
and cleanups.
- blk-mq timeout updates and fixes from Christoph.
- Removal of REQ_END, also from Christoph. We pass it through the
->queue_rq() hook for blk-mq instead, freeing up one of the request
bits. The space was overly tight on 32-bit, so Martin also killed
REQ_KERNEL since it's no longer used.
- blk integrity updates and fixes from Martin and Gu Zheng.
- Update to the flush machinery for blk-mq from Ming Lei. Now we
have a per hardware context flush request, which both cleans up the
code should scale better for flush intensive workloads on blk-mq.
- Improve the error printing, from Rob Elliott.
- Backing device improvements and cleanups from Tejun.
- Fixup of a misplaced rq_complete() tracepoint from Hannes.
- Make blk_get_request() return error pointers, fixing up issues
where we NULL deref when a device goes bad or missing. From Joe
Lawrence.
- Prep work for drastically reducing the memory consumption of dm
devices from Junichi Nomura. This allows creating clone bio sets
without preallocating a lot of memory.
- Fix a blk-mq hang on certain combinations of queue depths and
hardware queues from me.
- Limit memory consumption for blk-mq devices for crash dump
scenarios and drivers that use crazy high depths (certain SCSI
shared tag setups). We now just use a single queue and limited
depth for that"
* 'for-3.18/core' of git://git.kernel.dk/linux-block: (58 commits)
block: Remove REQ_KERNEL
blk-mq: allocate cpumask on the home node
bio-integrity: remove the needless fail handle of bip_slab creating
block: include func name in __get_request prints
block: make blk_update_request print prefix match ratelimited prefix
blk-merge: don't compute bi_phys_segments from bi_vcnt for cloned bio
block: fix alignment_offset math that assumes io_min is a power-of-2
blk-mq: Make bt_clear_tag() easier to read
blk-mq: fix potential hang if rolling wakeup depth is too high
block: add bioset_create_nobvec()
block: use bio_clone_fast() in blk_rq_prep_clone()
block: misplaced rq_complete tracepoint
sd: Honor block layer integrity handling flags
block: Replace strnicmp with strncasecmp
block: Add T10 Protection Information functions
block: Don't merge requests if integrity flags differ
block: Integrity checksum flag
block: Relocate bio integrity flags
block: Add a disk flag to block integrity profile
block: Add prefix to block integrity profile flags
...
Linus Torvalds [Sat, 18 Oct 2014 18:48:03 +0000 (11:48 -0700)]
Merge tag 'for-linus-
20141015' of git://git.infradead.org/linux-mtd
Pull MTD update from Brian Norris:
"Sorry for delaying this a bit later than usual. There's one mild
regression from 3.16 that was noticed during the 3.17 cycle, and I
meant to send a fix for it along with this pull request. I'll
probably try to queue it up for a later pull request once I've had a
better look at it, hopefully by -rc2 at the latest.
Summary for this pull:
NAND
- Cleanup for Denali driver
- Atmel: add support for new page sizes
- Atmel: fix up 'raw' mode support
- Atmel: miscellaneous cleanups
- New timing mode helpers for non-ONFI NAND
- OMAP: allow driver to be (properly) built as a module
- bcm47xx: RESET support and other cleanups
SPI NOR
- Miscellaneous cleanups, to prepare framework for wider use (some
further work still pending)
- Compile-time configuration to select 4K vs. 64K support for flash
that support both (necessary for using UBIFS on some SPI NOR)
A few scattered code quality fixes, detected by Coverity
See the changesets for more"
* tag 'for-linus-
20141015' of git://git.infradead.org/linux-mtd: (59 commits)
mtd: nand: omap: Correct CONFIG_MTD_NAND_OMAP_BCH help message
mtd: nand: Force omap_elm to be built as a module if omap2_nand is a module
mtd: move support for struct flash_platform_data into m25p80
mtd: spi-nor: add Kconfig option to disable 4K sectors
mtd: nand: Move ELM driver and rename as omap_elm
nand: omap2: Replace pr_err with dev_err
nand: omap2: Remove horrible ifdefs to fix module probe
mtd: nand: add Hynix's H27UCG8T2ATR-BC to nand_ids table
mtd: nand: support ONFI timing mode retrieval for non-ONFI NANDs
mtd: physmap_of: Add non-obsolete map_rom probe
mtd: physmap_of: Fix ROM support via OF
MAINTAINERS: add l2-mtd.git, 'next' tree for MTD
mtd: denali: fix indents and other trivial things
mtd: denali: remove unnecessary parentheses
mtd: denali: remove another set-but-unused variable
mtd: denali: fix include guard and license block of denali.h
mtd: nand: don't break long print messages
mtd: bcm47xxnflash: replace some magic numbers
mtd: bcm47xxnflash: NAND_CMD_RESET support
mtd: bcm47xxnflash: add cmd_ctrl handler
...
Linus Torvalds [Sat, 18 Oct 2014 18:39:52 +0000 (11:39 -0700)]
Merge tag 'md/3.18' of git://neil.brown.name/md
Pull md updates from Neil Brown:
- a few minor bug fixes
- quite a lot of code tidy-up and simplification
- remove PRINT_RAID_DEBUG ioctl. I'm fairly sure it is unused, and it
isn't particularly useful.
* tag 'md/3.18' of git://neil.brown.name/md: (21 commits)
lib/raid6: Add log level to printks
md: move EXPORT_SYMBOL to after function in md.c
md: discard PRINT_RAID_DEBUG ioctl
md: remove MD_BUG()
md: clean up 'exit' labels in md_ioctl().
md: remove unnecessary test for MD_MAJOR in md_ioctl()
md: don't allow "-sync" to be set for device in an active array.
md: remove unwanted white space from md.c
md: don't start resync thread directly from md thread.
md: Just use RCU when checking for overlap between arrays.
md: avoid potential long delay under pers_lock
md: simplify export_array()
md: discard find_rdev_nr in favour of find_rdev_nr_rcu
md: use wait_event() to simplify md_super_wait()
md: be more relaxed about stopping an array which isn't started.
md/raid1: process_checks doesn't use its return value.
md/raid5: fix init_stripe() inconsistencies
md/raid10: another memory leak due to reshape.
md: use set_bit/clear_bit instead of shift/mask for bi_flags changes.
md/raid1: minor typos and reformatting.
...
Linus Torvalds [Sat, 18 Oct 2014 17:26:10 +0000 (10:26 -0700)]
Merge branch 'for-linus2' of git://git./linux/kernel/git/jmorris/linux-security
Pull selinux fix from James Morris:
"Fix for a list corruption bug in the SELinux code"
* 'for-linus2' of git://git.kernel.org/pub/scm/linux/kernel/git/jmorris/linux-security:
selinux: fix inode security list corruption
Linus Torvalds [Sat, 18 Oct 2014 17:25:09 +0000 (10:25 -0700)]
Merge tag 'virtio-next-for-linus' of git://git./linux/kernel/git/rusty/linux
Pull virtio updates from Rusty Russell:
"One cc: stable commit, the rest are a series of minor cleanups which
have been sitting in MST's tree during my vacation. I changed a
function name and made one trivial change, then they spent two days in
linux-next"
* tag 'virtio-next-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/rusty/linux: (25 commits)
virtio-rng: refactor probe error handling
virtio_scsi: drop scan callback
virtio_balloon: enable VQs early on restore
virtio_scsi: fix race on device removal
virito_scsi: use freezable WQ for events
virtio_net: enable VQs early on restore
virtio_console: enable VQs early on restore
virtio_scsi: enable VQs early on restore
virtio_blk: enable VQs early on restore
virtio_scsi: move kick event out from virtscsi_init
virtio_net: fix use after free on allocation failure
9p/trans_virtio: enable VQs early
virtio_console: enable VQs early
virtio_blk: enable VQs early
virtio_net: enable VQs early
virtio: add API to enable VQs early
virtio_net: minor cleanup
virtio-net: drop config_mutex
virtio_net: drop config_enable
virtio-blk: drop config_mutex
...
Linus Torvalds [Sat, 18 Oct 2014 17:24:26 +0000 (10:24 -0700)]
Merge tag 'modules-next-for-linus' of git://git./linux/kernel/git/rusty/linux
Pull module fix from Rusty Russell:
"A single panic fix for a rare race, stable CC'd"
* tag 'modules-next-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/rusty/linux:
modules, lock around setting of MODULE_STATE_UNFORMED
Jonathan Corbet [Fri, 17 Oct 2014 12:59:26 +0000 (08:59 -0400)]
MAINTAINERS: Become the docs maintainer
It seems it's my turn to be the documentation maintainer for a bit. My
plan is to work to ensure that docs patches don't fall through the cracks;
I assume most changes will continue to flow through subsystem-specific
trees.
Acked-by: Jiri Kosina <jkosina@suse.cz>
Signed-off-by: Jonathan Corbet <corbet@lwn.net>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Andy Lutomirski [Wed, 8 Oct 2014 16:02:13 +0000 (09:02 -0700)]
x86,kvm,vmx: Preserve CR4 across VM entry
CR4 isn't constant; at least the TSD and PCE bits can vary.
TBH, treating CR0 and CR3 as constant scares me a bit, too, but it looks
like it's correct.
This adds a branch and a read from cr4 to each vm entry. Because it is
extremely likely that consecutive entries into the same vcpu will have
the same host cr4 value, this fixes up the vmcs instead of restoring cr4
after the fact. A subsequent patch will add a kernel-wide cr4 shadow,
reducing the overhead in the common case to just two memory reads and a
branch.
Signed-off-by: Andy Lutomirski <luto@amacapital.net>
Acked-by: Paolo Bonzini <pbonzini@redhat.com>
Cc: stable@vger.kernel.org
Cc: Petr Matousek <pmatouse@redhat.com>
Cc: Gleb Natapov <gleb@kernel.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Linus Torvalds [Sat, 18 Oct 2014 16:31:37 +0000 (09:31 -0700)]
Merge git://git./linux/kernel/git/davem/net
Pull networking fixes from David Miller:
1) Include fixes for netrom and dsa (Fabian Frederick and Florian
Fainelli)
2) Fix FIXED_PHY support in stmmac, from Giuseppe CAVALLARO.
3) Several SKB use after free fixes (vxlan, openvswitch, vxlan,
ip_tunnel, fou), from Li ROngQing.
4) fec driver PTP support fixes from Luwei Zhou and Nimrod Andy.
5) Use after free in virtio_net, from Michael S Tsirkin.
6) Fix flow mask handling for megaflows in openvswitch, from Pravin B
Shelar.
7) ISDN gigaset and capi bug fixes from Tilman Schmidt.
8) Fix route leak in ip_send_unicast_reply(), from Vasily Averin.
9) Fix two eBPF JIT bugs on x86, from Alexei Starovoitov.
10) TCP_SKB_CB() reorganization caused a few regressions, fixed by Cong
Wang and Eric Dumazet.
11) Don't overwrite end of SKB when parsing malformed sctp ASCONF
chunks, from Daniel Borkmann.
12) Don't call sock_kfree_s() with NULL pointers, this function also has
the side effect of adjusting the socket memory usage. From Cong Wang.
* git://git.kernel.org/pub/scm/linux/kernel/git/davem/net: (90 commits)
bna: fix skb->truesize underestimation
net: dsa: add includes for ethtool and phy_fixed definitions
openvswitch: Set flow-key members.
netrom: use linux/uaccess.h
dsa: Fix conversion from host device to mii bus
tipc: fix bug in bundled buffer reception
ipv6: introduce tcp_v6_iif()
sfc: add support for skb->xmit_more
r8152: return -EBUSY for runtime suspend
ipv4: fix a potential use after free in fou.c
ipv4: fix a potential use after free in ip_tunnel_core.c
hyperv: Add handling of IP header with option field in netvsc_set_hash()
openvswitch: Create right mask with disabled megaflows
vxlan: fix a free after use
openvswitch: fix a use after free
ipv4: dst_entry leak in ip_send_unicast_reply()
ipv4: clean up cookie_v4_check()
ipv4: share tcp_v4_save_options() with cookie_v4_check()
ipv4: call __ip_options_echo() in cookie_v4_check()
atm: simplify lanai.c by using module_pci_driver
...
Linus Torvalds [Sat, 18 Oct 2014 16:30:41 +0000 (09:30 -0700)]
Merge git://git./linux/kernel/git/davem/sparc
Pull Sparc bugfix from David Miller:
"Sparc64 AES ctr mode bug fix"
* git://git.kernel.org/pub/scm/linux/kernel/git/davem/sparc:
sparc64: Fix FPU register corruption with AES crypto offload.
Linus Torvalds [Sat, 18 Oct 2014 16:29:59 +0000 (09:29 -0700)]
Merge git://git./linux/kernel/git/davem/ide
Pull IDE cleanup from David Miller:
"One IDE driver cleanup"
* git://git.kernel.org/pub/scm/linux/kernel/git/davem/ide:
Drivers: ide: Remove typedef atiixp_ide_timing
Catalin Marinas [Fri, 17 Oct 2014 16:38:49 +0000 (17:38 +0100)]
futex: Ensure get_futex_key_refs() always implies a barrier
Commit
b0c29f79ecea (futexes: Avoid taking the hb->lock if there's
nothing to wake up) changes the futex code to avoid taking a lock when
there are no waiters. This code has been subsequently fixed in commit
11d4616bd07f (futex: revert back to the explicit waiter counting code).
Both the original commit and the fix-up rely on get_futex_key_refs() to
always imply a barrier.
However, for private futexes, none of the cases in the switch statement
of get_futex_key_refs() would be hit and the function completes without
a memory barrier as required before checking the "waiters" in
futex_wake() -> hb_waiters_pending(). The consequence is a race with a
thread waiting on a futex on another CPU, allowing the waker thread to
read "waiters == 0" while the waiter thread to have read "futex_val ==
locked" (in kernel).
Without this fix, the problem (user space deadlocks) can be seen with
Android bionic's mutex implementation on an arm64 multi-cluster system.
Signed-off-by: Catalin Marinas <catalin.marinas@arm.com>
Reported-by: Matteo Franchin <Matteo.Franchin@arm.com>
Fixes:
b0c29f79ecea (futexes: Avoid taking the hb->lock if there's nothing to wake up)
Acked-by: Davidlohr Bueso <dave@stgolabs.net>
Tested-by: Mike Galbraith <umgwanakikbuti@gmail.com>
Cc: <stable@vger.kernel.org>
Cc: Darren Hart <dvhart@linux.intel.com>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Ingo Molnar <mingo@kernel.org>
Cc: Paul E. McKenney <paulmck@linux.vnet.ibm.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Eric Dumazet [Fri, 17 Oct 2014 19:45:55 +0000 (12:45 -0700)]
bna: fix skb->truesize underestimation
skb->truesize is not meant to be tracking amount of used bytes
in an skb, but amount of reserved/consumed bytes in memory.
For instance, if we use a single byte in last page fragment,
we have to account the full size of the fragment.
skb->truesize can be very different from skb->len, that has
a very specific safety purpose.
Signed-off-by: Eric Dumazet <edumazet@google.com>
Cc: Rasesh Mody <rasesh.mody@qlogic.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Florian Fainelli [Fri, 17 Oct 2014 23:02:13 +0000 (16:02 -0700)]
net: dsa: add includes for ethtool and phy_fixed definitions
net/dsa/slave.c uses functions and structures declared in phy_fixed.h
but does not explicitely include it, while dsa.h needs structure
declarations for 'struct ethtool_wolinfo' and 'struct ethtool_eee', fix
those by including the correct header files.
Fixes:
ec9436baedb6 ("net: dsa: allow drivers to do link adjustment")
Fixes:
ce31b31c68e7 ("net: dsa: allow updating fixed PHY link information")
Signed-off-by: Florian Fainelli <f.fainelli@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Pravin B Shelar [Fri, 17 Oct 2014 20:56:31 +0000 (13:56 -0700)]
openvswitch: Set flow-key members.
This patch adds missing memset which are required to initialize
flow key member. For example for IP flow we need to initialize
ip.frag for all cases.
Found by inspection.
This bug is introduced by commit
0714812134d7dcadeb7ecfbfeb18788aa7e1eaac
("openvswitch: Eliminate memset() from flow_extract").
Signed-off-by: Pravin B Shelar <pshelar@nicira.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Fabian Frederick [Fri, 17 Oct 2014 20:00:22 +0000 (22:00 +0200)]
netrom: use linux/uaccess.h
replace asm/uaccess.h by linux/uaccess.h
Signed-off-by: Fabian Frederick <fabf@skynet.be>
Signed-off-by: David S. Miller <davem@davemloft.net>
Guenter Roeck [Fri, 17 Oct 2014 19:30:58 +0000 (12:30 -0700)]
dsa: Fix conversion from host device to mii bus
Commit
b4d2394d01bc ("dsa: Replace mii_bus with a generic host device")
replaces mii_bus with a generic host_dev, and introduces
dsa_host_dev_to_mii_bus() to support conversion from host_dev to mii_bus.
However, in some cases it uses to_mii_bus to perform that conversion.
Since host_dev is not the phy bus device but typically a platform device,
this fails and results in a crash with the affected drivers.
BUG: unable to handle kernel NULL pointer dereference at (null)
IP: [<
ffffffff81781d35>] __mutex_lock_slowpath+0x75/0x100
PGD
406783067 PUD
406784067 PMD 0
Oops: 0002 [#1] SMP
...
Call Trace:
[<
ffffffff810a538b>] ? pick_next_task_fair+0x61b/0x880
[<
ffffffff81781de3>] mutex_lock+0x23/0x37
[<
ffffffff81533244>] mdiobus_read+0x34/0x60
[<
ffffffff8153b95a>] __mv88e6xxx_reg_read+0x8a/0xa0
[<
ffffffff8153b9bc>] mv88e6xxx_reg_read+0x4c/0xa0
Fixes:
b4d2394d01bc ("dsa: Replace mii_bus with a generic host device")
Cc: Alexander Duyck <alexander.h.duyck@intel.com>
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
Acked-by: Alexander Duyck <alexander.h.duyck@redhat.com>
Acked-by: Florian Fainelli <f.fainelli@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Jon Paul Maloy [Fri, 17 Oct 2014 19:25:28 +0000 (15:25 -0400)]
tipc: fix bug in bundled buffer reception
In commit
ec8a2e5621db2da24badb3969eda7fd359e1869f ("tipc: same receive
code path for connection protocol and data messages") we omitted the
the possiblilty that an arriving message extracted from a bundle buffer
may be a multicast message. Such messages need to be to be delivered to
the socket via a separate function, tipc_sk_mcast_rcv(). As a result,
small multicast messages arriving as members of a bundle buffer will be
silently dropped.
This commit corrects the error by considering this case in the function
tipc_link_bundle_rcv().
Signed-off-by: Jon Maloy <jon.maloy@ericsson.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Eric Dumazet [Fri, 17 Oct 2014 16:17:20 +0000 (09:17 -0700)]
ipv6: introduce tcp_v6_iif()
Commit
971f10eca186 ("tcp: better TCP_SKB_CB layout to reduce cache line
misses") added a regression for SO_BINDTODEVICE on IPv6.
This is because we still use inet6_iif() which expects that IP6 control
block is still at the beginning of skb->cb[]
This patch adds tcp_v6_iif() helper and uses it where necessary.
Because __inet6_lookup_skb() is used by TCP and DCCP, we add an iif
parameter to it.
Signed-off-by: Eric Dumazet <edumazet@google.com>
Fixes:
971f10eca186 ("tcp: better TCP_SKB_CB layout to reduce cache line misses")
Acked-by: Cong Wang <cwang@twopensource.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Edward Cree [Fri, 17 Oct 2014 14:32:25 +0000 (15:32 +0100)]
sfc: add support for skb->xmit_more
Don't ring the doorbell, and don't do PIO. This will also prevent
TX Push, because there will be more than one buffer waiting when
the doorbell is rung.
Signed-off-by: Edward Cree <ecree@solarflare.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
hayeswang [Fri, 17 Oct 2014 08:55:08 +0000 (16:55 +0800)]
r8152: return -EBUSY for runtime suspend
Remove calling cancel_delayed_work_sync() for runtime suspend,
because it would cause dead lock. Instead, return -EBUSY to
avoid the device enters suspending if the net is running and
the delayed work is pending or running. The delayed work would
try to wake up the device later, so the suspending is not
necessary.
Signed-off-by: Hayes Wang <hayeswang@realtek.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Li RongQing [Fri, 17 Oct 2014 08:53:47 +0000 (16:53 +0800)]
ipv4: fix a potential use after free in fou.c
pskb_may_pull() maybe change skb->data and make uh pointer oboslete,
so reload uh and guehdr
Fixes:
37dd0247 ("gue: Receive side for Generic UDP Encapsulation")
Cc: Tom Herbert <therbert@google.com>
Signed-off-by: Li RongQing <roy.qing.li@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Li RongQing [Fri, 17 Oct 2014 08:53:23 +0000 (16:53 +0800)]
ipv4: fix a potential use after free in ip_tunnel_core.c
pskb_may_pull() maybe change skb->data and make eth pointer oboslete,
so set eth after pskb_may_pull()
Fixes:
3d7b46cd("ip_tunnel: push generic protocol handling to ip_tunnel module")
Cc: Pravin B Shelar <pshelar@nicira.com>
Signed-off-by: Li RongQing <roy.qing.li@gmail.com>
Acked-by: Pravin B Shelar <pshelar@nicira.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Haiyang Zhang [Thu, 16 Oct 2014 21:47:58 +0000 (14:47 -0700)]
hyperv: Add handling of IP header with option field in netvsc_set_hash()
In case that the IP header has optional field at the end, this patch will
get the port numbers after that field, and compute the hash. The general
parser skb_flow_dissect() is used here.
Signed-off-by: Haiyang Zhang <haiyangz@microsoft.com>
Reviewed-by: K. Y. Srinivasan <kys@microsoft.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Steve French [Fri, 17 Oct 2014 22:17:12 +0000 (17:17 -0500)]
[CIFS] Remove obsolete comment
Signed-off-by: Steven French <smfrench@gmail.com>
Pravin B Shelar [Fri, 17 Oct 2014 04:55:45 +0000 (21:55 -0700)]
openvswitch: Create right mask with disabled megaflows
If megaflows are disabled, the userspace does not send the netlink attribute
OVS_FLOW_ATTR_MASK, and the kernel must create an exact match mask.
sw_flow_mask_set() sets every bytes (in 'range') of the mask to 0xff, even the
bytes that represent padding for struct sw_flow, or the bytes that represent
fields that may not be set during ovs_flow_extract().
This is a problem, because when we extract a flow from a packet,
we do not memset() anymore the struct sw_flow to 0.
This commit gets rid of sw_flow_mask_set() and introduces mask_set_nlattr(),
which operates on the netlink attributes rather than on the mask key. Using
this approach we are sure that only the bytes that the user provided in the
flow are matched.
Also, if the parse_flow_mask_nlattrs() for the mask ENCAP attribute fails, we
now return with an error.
This bug is introduced by commit
0714812134d7dcadeb7ecfbfeb18788aa7e1eaac
("openvswitch: Eliminate memset() from flow_extract").
Reported-by: Alex Wang <alexw@nicira.com>
Signed-off-by: Daniele Di Proietto <ddiproietto@vmware.com>
Signed-off-by: Andy Zhou <azhou@nicira.com>
Signed-off-by: Pravin B Shelar <pshelar@nicira.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Li RongQing [Fri, 17 Oct 2014 06:06:16 +0000 (14:06 +0800)]
vxlan: fix a free after use
pskb_may_pull maybe change skb->data and make eth pointer oboslete,
so eth needs to reload
Fixes:
91269e390d062 ("vxlan: using pskb_may_pull as early as possible")
Cc: Eric Dumazet <edumazet@google.com>
Signed-off-by: Li RongQing <roy.qing.li@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Li RongQing [Fri, 17 Oct 2014 06:03:08 +0000 (14:03 +0800)]
openvswitch: fix a use after free
pskb_may_pull() called by arphdr_ok can change skb->data, so put the arp
setting after arphdr_ok to avoid the use the freed memory
Fixes:
0714812134d7d ("openvswitch: Eliminate memset() from flow_extract.")
Cc: Jesse Gross <jesse@nicira.com>
Cc: Eric Dumazet <edumazet@google.com>
Signed-off-by: Li RongQing <roy.qing.li@gmail.com>
Acked-by: Jesse Gross <jesse@nicira.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Vasily Averin [Wed, 15 Oct 2014 12:24:02 +0000 (16:24 +0400)]
ipv4: dst_entry leak in ip_send_unicast_reply()
ip_setup_cork() called inside ip_append_data() steals dst entry from rt to cork
and in case errors in __ip_append_data() nobody frees stolen dst entry
Fixes:
2e77d89b2fa8 ("net: avoid a pair of dst_hold()/dst_release() in ip_append_data()")
Signed-off-by: Vasily Averin <vvs@parallels.com>
Acked-by: Eric Dumazet <edumazet@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Cong Wang [Wed, 15 Oct 2014 21:33:22 +0000 (14:33 -0700)]
ipv4: clean up cookie_v4_check()
We can retrieve opt from skb, no need to pass it as a parameter.
And opt should always be non-NULL, no need to check.
Cc: Krzysztof Kolasa <kkolasa@winsoft.pl>
Cc: Eric Dumazet <edumazet@google.com>
Tested-by: Krzysztof Kolasa <kkolasa@winsoft.pl>
Signed-off-by: Cong Wang <cwang@twopensource.com>
Signed-off-by: Cong Wang <xiyou.wangcong@gmail.com>
Acked-by: Eric Dumazet <edumazet@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Cong Wang [Wed, 15 Oct 2014 21:33:21 +0000 (14:33 -0700)]
ipv4: share tcp_v4_save_options() with cookie_v4_check()
cookie_v4_check() allocates ip_options_rcu in the same way
with tcp_v4_save_options(), we can just make it a helper function.
Cc: Krzysztof Kolasa <kkolasa@winsoft.pl>
Cc: Eric Dumazet <edumazet@google.com>
Signed-off-by: Cong Wang <cwang@twopensource.com>
Signed-off-by: Cong Wang <xiyou.wangcong@gmail.com>
Acked-by: Eric Dumazet <edumazet@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Cong Wang [Wed, 15 Oct 2014 21:33:20 +0000 (14:33 -0700)]
ipv4: call __ip_options_echo() in cookie_v4_check()
commit
971f10eca186cab238c49da ("tcp: better TCP_SKB_CB layout to reduce cache line misses")
missed that cookie_v4_check() still calls ip_options_echo() which uses
IPCB(). It should use TCPCB() at TCP layer, so call __ip_options_echo()
instead.
Fixes: commit
971f10eca186cab238c49da ("tcp: better TCP_SKB_CB layout to reduce cache line misses")
Cc: Krzysztof Kolasa <kkolasa@winsoft.pl>
Cc: Eric Dumazet <edumazet@google.com>
Reported-by: Krzysztof Kolasa <kkolasa@winsoft.pl>
Tested-by: Krzysztof Kolasa <kkolasa@winsoft.pl>
Signed-off-by: Cong Wang <cwang@twopensource.com>
Signed-off-by: Cong Wang <xiyou.wangcong@gmail.com>
Signed-off-by: Eric Dumazet <edumazet@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Michael Opdenacker [Wed, 15 Oct 2014 07:45:50 +0000 (09:45 +0200)]
atm: simplify lanai.c by using module_pci_driver
This simplifies the lanai.c driver by using
the module_pci_driver() macro, at the expense
of losing only debugging messages.
Signed-off-by: Michael Opdenacker <michael.opdenacker@free-electrons.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Chris Mason [Wed, 15 Oct 2014 20:50:56 +0000 (13:50 -0700)]
Revert "Btrfs: race free update of commit root for ro snapshots"
This reverts commit
9c3b306e1c9e6be4be09e99a8fe2227d1005effc.
Switching only one commit root during a transaction is wrong because it
leads the fs into an inconsistent state. All commit roots should be
switched at once, at transaction commit time, otherwise backref walking
can often miss important references that were only accessible through
the old commit root. Plus, the root item for the snapshot's root wasn't
getting updated and preventing the next transaction commit to do it.
This made several users get into random corruption issues after creation
of readonly snapshots.
A regression test for xfstests will follow soon.
Cc: stable@vger.kernel.org # 3.17
Signed-off-by: Filipe Manana <fdmanana@suse.com>
Signed-off-by: Chris Mason <clm@fb.com>
Steve French [Thu, 16 Oct 2014 20:13:14 +0000 (15:13 -0500)]
Check minimum response length on query_network_interface
Acked-by: Shirish Pargaonkar <shirishpargaonkar@gmail.com>
Signed-off-by: Steve French <smfrench@gmail.com>
Steve French [Mon, 6 Oct 2014 06:01:03 +0000 (01:01 -0500)]
Workaround Mac server problem
Mac server returns that they support CIFS Unix Extensions but
doesn't actually support QUERY_FILE_UNIX_BASIC so mount fails.
Workaround this problem by disabling use of Unix CIFS protocol
extensions if server returns an EOPNOTSUPP error on
QUERY_FILE_UNIX_BASIC during mount.
Signed-off-by: Steve French <smfrench@gmail.com>
Steve French [Sat, 27 Sep 2014 07:19:01 +0000 (02:19 -0500)]
Remap reserved posix characters by default (part 3/3)
This is a bigger patch, but its size is mostly due to
a single change for how we check for remapping illegal characters
in file names - a lot of repeated, small changes to
the way callers request converting file names.
The final patch in the series does the following:
1) changes default behavior for cifs to be more intuitive.
Currently we do not map by default to seven reserved characters,
ie those valid in POSIX but not in NTFS/CIFS/SMB3/Windows,
unless a mount option (mapchars) is specified. Change this
to by default always map and map using the SFM maping
(like the Mac uses) unless the server negotiates the CIFS Unix
Extensions (like Samba does when mounting with the cifs protocol)
when the remapping of the characters is unnecessary. This should
help SMB3 mounts in particular since Samba will likely be
able to implement this mapping with its new "vfs_fruit" module
as it will be doing for the Mac.
2) if the user specifies the existing "mapchars" mount option then
use the "SFU" (Microsoft Services for Unix, SUA) style mapping of
the seven characters instead.
3) if the user specifies "nomapposix" then disable SFM/MAC style mapping
(so no character remapping would be used unless the user specifies
"mapchars" on mount as well, as above).
4) change all the places in the code that check for the superblock
flag on the mount which is set by mapchars and passed in on all
path based operation and change it to use a small function call
instead to set the mapping type properly (and check for the
mapping type in the cifs unicode functions)
Signed-off-by: Steve French <smfrench@gmail.com>
Steve French [Thu, 25 Sep 2014 19:01:34 +0000 (14:01 -0500)]
Allow conversion of characters in Mac remap range (part 2)
The previous patch allowed remapping reserved characters from directory
listenings, this patch adds conversion the other direction, allowing
opening of files with any of the seven reserved characters.
Signed-off-by: Steve French <smfrench@gmail.com>
Reviewed-by: Shirish Pargaonkar <shirishpargaonkar@gmail.com>
Steve French [Thu, 25 Sep 2014 18:20:05 +0000 (13:20 -0500)]
Allow conversion of characters in Mac remap range. Part 1
This allows directory listings to Mac to display filenames
correctly which have been created with illegal (to Windows)
characters in their filename. It does not allow
converting the other direction yet ie opening files with
these characters (followon patch).
There are seven reserved characters that need to be remapped when
mounting to Windows, Mac (or any server without Unix Extensions) which
are valid in POSIX but not in the other OS.
: \ < > ? * |
We used the normal UCS-2 remap range for this in order to convert this
to/from UTF8 as did Windows Services for Unix (basically add 0xF000 to
any of the 7 reserved characters), at least when the "mapchars" mount
option was specified.
Mac used a very slightly different "Services for Mac" remap range
0xF021 through 0xF027. The attached patch allows cifs.ko (the kernel
client) to read directories on macs containing files with these
characters and display their names properly. In theory this even
might be useful on mounts to Samba when the vfs_catia or new
"vfs_fruit" module is loaded.
Currently the 7 reserved characters look very strange in directory
listings from cifs.ko to Mac server. This patch allows these file
name characters to be read (requires specifying mapchars on mount).
Two additional changes are needed:
1) Make it more automatic: a way of detecting enough info so that
we know to try to always remap these characters or not. Various
have suggested that the SFM approach be made the default when
the server does not support POSIX Unix extensions (cifs mounts
to Samba for example) so need to make SFM remapping the default
unless mapchars (SFU style mapping) specified on mount or no
mapping explicitly requested or no mapping needed (cifs mounts to Samba).
2) Adding a patch to map the characters the other direction
(ie UTF-8 to UCS-2 on open). This patch does it for translating
readdir entries (ie UCS-2 to UTF-8)
Signed-off-by: Steve French <smfrench@gmail.com>
Reviewed-by: Shirish Pargaonkar <shirishpargaonkar@gmail.com>
Steve French [Tue, 16 Sep 2014 12:18:19 +0000 (07:18 -0500)]
mfsymlinks support for SMB2.1/SMB3. Part 2 query symlink
Adds support on SMB2.1 and SMB3 mounts for emulation of symlinks
via the "Minshall/French" symlink format already used for cifs
mounts when mfsymlinks mount option is used (and also used by Apple).
http://wiki.samba.org/index.php/UNIX_Extensions#Minshall.2BFrench_symlinks
This second patch adds support to query them (recognize them as symlinks
and read them). Third version of patch makes minor corrections
to error handling.
Signed-off-by: Steve French <smfrench@gmail.com>
Reviewed-by: Stefan Metzmacher <metze@samba.org>
Steve French [Mon, 15 Sep 2014 09:49:28 +0000 (04:49 -0500)]
Add mfsymlinks support for SMB2.1/SMB3. Part 1 create symlink
Adds support on SMB2.1 and SMB3 mounts for emulation of symlinks
via the "Minshall/French" symlink format already used for cifs
mounts when mfsymlinks mount option is used (and also used by Apple).
http://wiki.samba.org/index.php/UNIX_Extensions#Minshall.2BFrench_symlinks
This first patch adds support to create them. The next patch will
add support for recognizing them and reading them. Although CIFS/SMB3
have other types of symlinks, in the many use cases they aren't
practical (e.g. either require cifs only mounts with unix extensions
to Samba, or require the user to be Administrator to Windows for SMB3).
This also helps enable running additional xfstests over SMB3 (since some
xfstests directly or indirectly require symlink support).
Signed-off-by: Steve French <smfrench@gmail.com>
CC: Stefan Metzmacher <metze@samba.org>
Steve French [Mon, 22 Sep 2014 10:13:55 +0000 (05:13 -0500)]
Allow mknod and mkfifo on SMB2/SMB3 mounts
The "sfu" mount option did not work on SMB2/SMB3 mounts.
With these changes when the "sfu" mount option is passed in
on an smb2/smb2.1/smb3 mount the client can emulate (and
recognize) fifo and device (character and device files).
In addition the "sfu" mount option should not conflict
with "mfsymlinks" (symlink emulation) as we will never
create "sfu" style symlinks, but using "sfu" mount option
will allow us to recognize existing symlinks, created with
Microsoft "Services for Unix" (SFU and SUA).
To enable the "sfu" mount option for SMB2/SMB3 the calling
syntax of the generic cifs/smb2/smb3 sync_read and sync_write
protocol dependent function needed to be changed (we
don't have a file struct in all cases), but this actually
ended up simplifying the code a little.
Signed-off-by: Steve French <smfrench@gmail.com>
Steve French [Wed, 24 Sep 2014 00:25:42 +0000 (19:25 -0500)]
add defines for two new file attributes
Signed-off-by: Steve French <smfrench@gmail.com>
Reviewed-by: Shirish Pargaonkar <shirishpargaonkar@gmail.com>
Nicolas Dichtel [Thu, 16 Oct 2014 13:47:51 +0000 (15:47 +0200)]
netlink: fix description of portid
Avoid confusion between pid and portid.
Signed-off-by: Nicolas Dichtel <nicolas.dichtel@6wind.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
David S. Miller [Thu, 16 Oct 2014 18:42:51 +0000 (14:42 -0400)]
Merge branch 'master' of git://git./linux/kernel/git/jkirsher/net
Jeff Kirsher says:
====================
Intel Wired LAN Driver Updates 2014-10-16
This series contains updates to fm10k and ixgbe.
Matthew provides two fixes for fm10k, first sets the flag to fetch the
host state before kicking off the service task that reads the host
state when bringing the interface up. The second makes sure that we
release the mailbox lock after detecting an error and before we return
the error code.
Andy Zhou provides a compile fix for fm10k, when the driver is compiled
into the kernel and the VXLAN driver is compiled as a module.
Emil provides a fix for ixgbe to prevent against a panic by trying
to dereference a NULL pointer in ixgbe_ndo_set_vf_spoofchk().
====================
Signed-off-by: David S. Miller <davem@davemloft.net>
Anton Altaparmakov [Thu, 16 Oct 2014 11:53:35 +0000 (12:53 +0100)]
NTFS: Bump version to 2.1.31.
Signed-off-by: Anton Altaparmakov <anton@tuxera.com>
Anton Altaparmakov [Thu, 16 Oct 2014 11:50:52 +0000 (12:50 +0100)]
NTFS: Add bmap address space operation needed for FIBMAP ioctl.
Signed-off-by: Anton Altaparmakov <anton@tuxera.com>
Anton Altaparmakov [Thu, 16 Oct 2014 11:43:57 +0000 (12:43 +0100)]
NTFS: Remove changelog from Documentation/filesystems/ntfs.txt.
Changelog is in git history, no need to have a copy in the documentation.
Signed-off-by: Anton Altaparmakov <anton@tuxera.com>
Anton Altaparmakov [Thu, 16 Oct 2014 11:28:03 +0000 (12:28 +0100)]
NTFS: Split ntfs_aops into ntfs_normal_aops and ntfs_compressed_aops
in preparation for them diverging.
Signed-off-by: Anton Altaparmakov <anton@tuxera.com>
James Morris [Thu, 16 Oct 2014 10:04:18 +0000 (21:04 +1100)]
Merge branch 'stable-3.18' of git://git.infradead.org/users/pcmoore/selinux into for-linus2
Emil Tantilov [Thu, 16 Oct 2014 15:49:02 +0000 (15:49 +0000)]
ixgbe: check for vfs outside of sriov_num_vfs before dereference
The check for vfinfo is not sufficient because it does not protect
against specifying vf that is outside of sriov_num_vfs range.
All of the ndo functions have a check for it except for
ixgbevf_ndo_set_spoofcheck().
The following patch is all we need to protect against this panic:
ip link set p96p1 vf 0 spoofchk off
BUG: unable to handle kernel NULL pointer dereference at
0000000000000052
IP: [<
ffffffffa044a1c1>]
ixgbe_ndo_set_vf_spoofchk+0x51/0x150 [ixgbe]
Reported-by: Thierry Herbelot <thierry.herbelot@6wind.com>
Signed-off-by: Emil Tantilov <emil.s.tantilov@intel.com>
Acked-by: Thierry Herbelot <thierry.herbelot@6wind.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
Andy Zhou [Sat, 4 Oct 2014 06:19:11 +0000 (06:19 +0000)]
fm10k: Add CONFIG_FM10K_VXLAN configuration option
Compiling with CONFIG_FM10K=y and VXLAN=m resulting in linking error:
drivers/built-in.o: In function `fm10k_open':
(.text+0x1f9d7a): undefined reference to `vxlan_get_rx_port'
make: *** [vmlinux] Error 1
The fix follows the same strategy as I40E.
Signed-off-by: Andy Zhou <azhou@nicira.com>
Acked-by: Alexander Duyck <alexander.h.duyck@intel.com>
Tested-by: Aaron Brown <aaron.f.brown@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
Christoffer Dall [Sun, 28 Sep 2014 14:04:26 +0000 (16:04 +0200)]
arm/arm64: KVM: Fix BE accesses to GICv2 EISR and ELRSR regs
The EIRSR and ELRSR registers are 32-bit registers on GICv2, and we
store these as an array of two such registers on the vgic vcpu struct.
However, we access them as a single 64-bit value or as a bitmap pointer
in the generic vgic code, which breaks BE support.
Instead, store them as u64 values on the vgic structure and do the
word-swapping in the assembly code, which already handles the byte order
for BE systems.
Tested-by: Victor Kamensky <victor.kamensky@linaro.org>
Acked-by: Marc Zyngier <marc.zyngier@arm.com>
Signed-off-by: Christoffer Dall <christoffer.dall@linaro.org>
Matthew Vick [Fri, 3 Oct 2014 00:43:35 +0000 (00:43 +0000)]
fm10k: Unlock mailbox on VLAN addition failures
After grabbing the mailbox lock and detecting an error, the lock must be
released before the error code can be returned.
Signed-off-by: Matthew Vick <matthew.vick@intel.com>
Tested-by: Aaron Brown <aaron.f.brown@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
Vinod Koul [Thu, 16 Oct 2014 07:29:06 +0000 (12:59 +0530)]
serial: atmel: add missing dmaengine header
The atmel serial driver uses dmaengine APIs but never included the dmaengine
header as it was getting inculded thru one of driver headers.
commit
3d588f83e4d6a5230d9094b97d38621cbaa9a972 - "dmaengine: dw: split
dma-dw.h to platform and private parts" broke this as it moved headers
around. Fix this by doing the right thing to include the dmaengine header
Reported-by: kbuild test robot <fengguang.wu@intel.com>
Fixes:
08f738be88bb (serial: at91: add tx dma support)
Acked-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: Vinod Koul <vinod.koul@intel.com>
Matthew Vick [Thu, 2 Oct 2014 05:10:18 +0000 (05:10 +0000)]
fm10k: Check the host state when bringing the interface up
Set the flag to fetch the host state before kicking off the service task
that reads the host state when bringing the interface back up.
Signed-off-by: Matthew Vick <matthew.vick@intel.com>
Tested-by: Aaron Brown <aaron.f.brown@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
Li RongQing [Thu, 16 Oct 2014 01:17:18 +0000 (09:17 +0800)]
vxlan: using pskb_may_pull as early as possible
pskb_may_pull should be used to check if skb->data has enough space,
skb->len can not ensure that.
Cc: Cong Wang <xiyou.wangcong@gmail.com>
Signed-off-by: Li RongQing <roy.qing.li@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Li RongQing [Thu, 16 Oct 2014 00:49:41 +0000 (08:49 +0800)]
vxlan: fix a use after free in vxlan_encap_bypass
when netif_rx() is done, the netif_rx handled skb maybe be freed,
and should not be used.
Signed-off-by: Li RongQing <roy.qing.li@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Fabian Frederick [Wed, 15 Oct 2014 19:03:41 +0000 (21:03 +0200)]
openvswitch: use vport instead of p
All functions used struct vport *vport except
ovs_vport_find_upcall_portid.
This fixes 1 kerneldoc warning
Signed-off-by: Fabian Frederick <fabf@skynet.be>
Acked-by: Pravin B Shelar <pshelar@nicira.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Fabian Frederick [Wed, 15 Oct 2014 19:03:18 +0000 (21:03 +0200)]
openvswitch: kerneldoc warning fix
s/sock/gs
Signed-off-by: Fabian Frederick <fabf@skynet.be>
Acked-by: Pravin B Shelar <pshelar@nicira.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Michael Ellerman [Thu, 16 Oct 2014 01:29:46 +0000 (12:29 +1100)]
powerpc/pci: Fix IO space breakage after of_pci_range_to_resource() change
Commit
0b0b0893d49b "of/pci: Fix the conversion of IO ranges into IO
resources" changed the behaviour of of_pci_range_to_resource().
Previously it simply populated the resource based on the arguments. Now
it calls pci_register_io_range() and pci_address_to_pio(). These both
have two implementations depending on whether PCI_IOBASE is defined,
which it is not for powerpc.
Further complicating matters, both routines are weak, and powerpc
implements it's own version of one - pci_address_to_pio(). However
powerpc's implementation depends on other initialisations which are done
later in boot.
The end result is incorrectly initialised IO space. Often we can get
away with that, because we don't make much use of IO space. However
virtio requires it, so we see eg:
pci_bus 0000:00: root bus resource [io 0xffff] (bus address [0xffffffffffffffff-0xffffffffffffffff])
PCI: Cannot allocate resource region 0 of device 0000:00:01.0, will remap
virtio-pci 0000:00:01.0: can't enable device: BAR 0 [io size 0x0020] not assigned
The simplest fix for now is to just stop using of_pci_range_to_resource(),
and open-code the original implementation, that's all we want it to do.
Fixes:
0b0b0893d49b ("of/pci: Fix the conversion of IO ranges into IO resources")
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Claudiu Manoil [Wed, 15 Oct 2014 16:11:46 +0000 (19:11 +0300)]
gianfar: Add FCS to rx buffer size (fix)
For each Rx frame the eTSEC writes its FCS (Frame Check Sequence)
to the Rx buffer.
The eTSEC h/w manual states in the "Receive Buffer Descriptor Field
Descriptions" table:
"Data length is the number of octets written by the eTSEC into this BD's
data buffer if L is cleared (the value is equal to MRBLR), or, if L is
set, the length of the frame including *CRC*, FCB (if RCTRL[PRSDEP > 00),
preamble (if MACCFG2[PreAmRxEn]=1), time stamp (if RCTRL[TS] = 1) and
any padding (RCTRL[PAL])."
Though the FCS bytes are removed by the driver before passing the skb
to the net stack, the Rx buffer size computation does not currently
take into account the FCS bytes (4 bytes).
Because the Rx buffer size is multiple of 512 bytes, leaving out the
FCS is not a problem for the default MTU of 1500, as the Rx buffer size
is 1536 in this case. However, for custom MTUs, where the difference
between the MTU size and the Rx buffer size is less, this can be a
problem as the computed Rx buffer size won't be enough to accomodate
the FCS for a received frame that is big enough (close to MTU size).
In such case the received frame is considered to be incomplete (L flag
not set in the RxBD status) and silently dropped.
Note that the driver does not currently support S/G on Rx, so it has to
compute its Rx buffer size based on the MTU of the device.
Reported-by: Kristian Otnes <kotnes@cisco.com>
Signed-off-by: Claudiu Manoil <claudiu.manoil@freescale.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Valdis Kletnieks [Mon, 13 Oct 2014 03:09:08 +0000 (23:09 -0400)]
pstore: Fix duplicate {console,ftrace}-efi entries
The pstore filesystem still creates duplicate filename/inode pairs for
some pstore types. Add the id to the filename to prevent that.
Before patch:
[/sys/fs/pstore] ls -li
total 0
1250 -r--r--r--. 1 root root 67 Sep 29 17:09 console-efi
1250 -r--r--r--. 1 root root 67 Sep 29 17:09 console-efi
1250 -r--r--r--. 1 root root 67 Sep 29 17:09 console-efi
1250 -r--r--r--. 1 root root 67 Sep 29 17:09 console-efi
1250 -r--r--r--. 1 root root 67 Sep 29 17:09 console-efi
1250 -r--r--r--. 1 root root 67 Sep 29 17:09 console-efi
1250 -r--r--r--. 1 root root 67 Sep 29 17:09 console-efi
1250 -r--r--r--. 1 root root 67 Sep 29 17:09 console-efi
1250 -r--r--r--. 1 root root 67 Sep 29 17:09 console-efi
After:
[/sys/fs/pstore] ls -li
total 0
1232 -r--r--r--. 1 root root 148 Sep 29 17:09 console-efi-
141202499100000
1231 -r--r--r--. 1 root root 67 Sep 29 17:09 console-efi-
141202499200000
1230 -r--r--r--. 1 root root 148 Sep 29 17:44 console-efi-
141202705400000
1229 -r--r--r--. 1 root root 67 Sep 29 17:44 console-efi-
141202705500000
1228 -r--r--r--. 1 root root 67 Sep 29 20:42 console-efi-
141203772600000
1227 -r--r--r--. 1 root root 148 Sep 29 23:42 console-efi-
141204854900000
1226 -r--r--r--. 1 root root 67 Sep 29 23:42 console-efi-
141204855000000
1225 -r--r--r--. 1 root root 148 Sep 29 23:59 console-efi-
141204954200000
1224 -r--r--r--. 1 root root 67 Sep 29 23:59 console-efi-
141204954400000
Signed-off-by: Valdis Kletnieks <valdis.kletnieks@vt.edu>
Acked-by: Kees Cook <keescook@chromium.org>
Cc: stable@vger.kernel.org # 3.6+
Signed-off-by: Tony Luck <tony.luck@intel.com>
Michael S. Tsirkin [Wed, 15 Oct 2014 13:23:28 +0000 (16:23 +0300)]
virtio_net: fix use after free
commit
0b725a2ca61bedc33a2a63d0451d528b268cf975
net: Remove ndo_xmit_flush netdev operation, use signalling instead.
added code that looks at skb->xmit_more after the skb has
been put in TX VQ. Since some paths process the ring and free the skb
immediately, this can cause use after free.
Fix by storing xmit_more in a local variable.
Cc: David S. Miller <davem@davemloft.net>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Nimrod Andy [Wed, 15 Oct 2014 09:30:12 +0000 (17:30 +0800)]
net: fec: ptp: fix convergence issue to support LinuxPTP stack
iMX6SX IEEE 1588 module has one hw issue in capturing the ATVR register.
The current SW flow is:
ENET0->ATCR |= ENET_ATCR_CAPTURE_MASK;
ts_counter_ns = ENET0->ATVR;
The ATVR value is not expected value that cause LinuxPTP stack cannot be convergent.
ENET Block Guide/ Chapter for the iMX6SX (PELE) address the issue:
After set ENET_ATCR[Capture], there need some time cycles before the counter
value is capture in the register clock domain. The wait-time-cycles is at least
6 clock cycles of the slower clock between the register clock and the 1588 clock.
So need something like:
ENET0->ATCR |= ENET_ATCR_CAPTURE_MASK;
wait();
ts_counter_ns = ENET0->ATVR;
For iMX6SX, the 1588 ts_clk is fixed to 25Mhz, register clock is 66Mhz, so the
wait-time-cycles must be greater than 240ns (40ns * 6). The patch add 1us delay
before cpu read ATVR register.
Changes V2:
Modify the commit/comments log to describe the issue clearly.
Signed-off-by: Fugang Duan <B38611@freescale.com>
Acked-by: Richard Cochran <richardcochran@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Himangi Saraogi [Thu, 14 Aug 2014 16:44:30 +0000 (22:14 +0530)]
Drivers: ide: Remove typedef atiixp_ide_timing
The Linux kernel coding style guidelines suggest not using typedefs
for structure types. This patch gets rid of the typedef for
atiixp_ide_timing.
The following Coccinelle semantic patch detects the case:
@tn1@
type td;
@@
typedef struct { ... } td;
@script:python tf@
td << tn1.td;
tdres;
@@
coccinelle.tdres = td;
@@
type tn1.td;
identifier tf.tdres;
@@
-typedef
struct
+ tdres
{ ... }
-td
;
@@
type tn1.td;
identifier tf.tdres;
@@
-td
+ struct tdres
Signed-off-by: Himangi Saraogi <himangi774@gmail.com>
Acked-by: Julia Lawall <julia.lawall@lip6.fr>
Signed-off-by: David S. Miller <davem@davemloft.net>
Anish Bhatt [Wed, 15 Oct 2014 07:26:47 +0000 (00:26 -0700)]
cxgb4i : Fix -Wmaybe-uninitialized warning.
Identified by kbuild test robot. csk family is always set to be AF_INET or
AF_INET6, so skb will always be initialized to some value but there is no harm
in silencing the warning anyways.
Signed-off-by: Anish Bhatt <anish@chelsio.com>
Fixes :
f42bb57c61fd ('cxgb4i : Fix -Wunused-function warning')
Signed-off-by: David S. Miller <davem@davemloft.net>
Tom Herbert [Tue, 14 Oct 2014 22:19:06 +0000 (15:19 -0700)]
net: Add ndo_gso_check
Add ndo_gso_check which a device can define to indicate whether is
is capable of doing GSO on a packet. This funciton would be called from
the stack to determine whether software GSO is needed to be done. A
driver should populate this function if it advertises GSO types for
which there are combinations that it wouldn't be able to handle. For
instance a device that performs UDP tunneling might only implement
support for transparent Ethernet bridging type of inner packets
or might have limitations on lengths of inner headers.
Signed-off-by: Tom Herbert <therbert@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Vinod Koul [Wed, 15 Oct 2014 16:09:09 +0000 (21:39 +0530)]
Merge branch 'topic/dma_control_fsl_acks' into for-linus
Vinod Koul [Wed, 15 Oct 2014 16:08:49 +0000 (21:38 +0530)]
Merge branch 'topic/dma_control_cleanup_acks' into for-linus
Vinod Koul [Sat, 11 Oct 2014 15:46:48 +0000 (21:16 +0530)]
dmaengine: remove FSLDMA_EXTERNAL_START
as users have been converted, so no need of this custom method
Signed-off-by: Vinod Koul <vinod.koul@intel.com>
Vinod Koul [Sat, 11 Oct 2014 15:46:47 +0000 (21:16 +0530)]
dmaengine: freescale: remove FSLDMA_EXTERNAL_START control method
since users have been move to fsl_dma_external_start() API, so remove this
now
Signed-off-by: Vinod Koul <vinod.koul@intel.com>
Vinod Koul [Sat, 11 Oct 2014 15:46:46 +0000 (21:16 +0530)]
carma-fpga: move to fsl_dma_external_start()
carma-fpga driver uses device control with custom FSLDMA_EXTERNAL_START
command. Since we wnat to deprecate the device control, move this driver to
use new fsl_dma_external_start() API
Signed-off-by: Vinod Koul <vinod.koul@intel.com>
Vinod Koul [Sat, 11 Oct 2014 15:46:45 +0000 (21:16 +0530)]
carma-fpga: use dmaengine_xxx() API
The drivers should use dmaengine_slave_config() and dmaengine_prep_dma_sg()
API instead of accessing the device_control which will be deprecated soon
Signed-off-by: Vinod Koul <vinod.koul@intel.com>
Vinod Koul [Sat, 11 Oct 2014 15:46:44 +0000 (21:16 +0530)]
dmaengine: freescale: add and export fsl_dma_external_start()
The freescale driver uses custom device control FSLDMA_EXTERNAL_START to
put the controller in external start mode.
Since we are planning to deprecate the device control, move this to exported
API. Subsequent patches will remove the FSLDMA_EXTERNAL_START
Signed-off-by: Vinod Koul <vinod.koul@intel.com>
Vinod Koul [Sat, 11 Oct 2014 15:46:43 +0000 (21:16 +0530)]
dmaengine: add dmaengine_prep_dma_sg() helper
This was only prep API which didnt have an helper
Signed-off-by: Vinod Koul <vinod.koul@intel.com>
Vinod Koul [Sat, 11 Oct 2014 15:40:40 +0000 (21:10 +0530)]
video: mx3fb: use dmaengine_terminate_all() API
The drivers should use dmaengine_terminate_all() API instead of
accessing the device_control which will be deprecated soon
Signed-off-by: Vinod Koul <vinod.koul@intel.com>
Vinod Koul [Sat, 11 Oct 2014 15:40:37 +0000 (21:10 +0530)]
serial: sh-sci: use dmaengine_terminate_all() API
The drivers should use dmaengine_terminate_all() API instead of
accessing the device_control which will be deprecated soon
Acked-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: Vinod Koul <vinod.koul@intel.com>
Vinod Koul [Sat, 11 Oct 2014 15:40:34 +0000 (21:10 +0530)]
net: ks8842: use dmaengine_terminate_all() API
The drivers should use dmaengine_terminate_all() API instead of
accessing the device_control which will be deprecated soon
Signed-off-by: Vinod Koul <vinod.koul@intel.com>
Vinod Koul [Sat, 11 Oct 2014 15:40:33 +0000 (21:10 +0530)]
mtd: sh_flctl: use dmaengine_terminate_all() API
The drivers should use dmaengine_terminate_all() API instead of
accessing the device_control which will be deprecated soon
Acked-by: Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com>
Signed-off-by: Vinod Koul <vinod.koul@intel.com>
Vinod Koul [Sat, 11 Oct 2014 15:40:32 +0000 (21:10 +0530)]
mtd: fsmc_nand: use dmaengine_terminate_all() API
The drivers should use dmaengine_terminate_all() API instead of
accessing the device_control which will be deprecated soon
Signed-off-by: Vinod Koul <vinod.koul@intel.com>
Vinod Koul [Sat, 11 Oct 2014 15:40:31 +0000 (21:10 +0530)]
V4L2: mx3_camer: use dmaengine_pause() API
The drivers should use dmaengine_pause() API instead of
accessing the device_control which will be deprecated soon
Signed-off-by: Vinod Koul <vinod.koul@intel.com>
Vinod Koul [Sat, 11 Oct 2014 15:40:30 +0000 (21:10 +0530)]
dmaengine: coh901318: use dmaengine_terminate_all() API
The drivers should use dmaengine_terminate_all() API instead of accessing
the device_control which will be deprecated soon
Signed-off-by: Vinod Koul <vinod.koul@intel.com>
Vinod Koul [Sat, 11 Oct 2014 15:40:29 +0000 (21:10 +0530)]
pata_arasan_cf: use dmaengine_terminate_all() API
The drivers should use dmaengine_terminate_all() API instead of accessing
the device_control which will be deprecated soon
Acked-by: Viresh Kumar <viresh.kumar@linaro.org>
Signed-off-by: Vinod Koul <vinod.koul@intel.com>
Giuseppe CAVALLARO [Wed, 15 Oct 2014 05:30:41 +0000 (07:30 +0200)]
stmmac: fix sti compatibililies
this patch is to fix the stmmac data compatibilities for
all the SoCs inside the platform file.
Reported-by: Stephen Rothwell <sfr@canb.auug.org.au>
Signed-off-by: Giuseppe Cavallaro <peppe.cavallaro@st.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Sebastian Andrzej Siewior [Mon, 29 Sep 2014 18:06:45 +0000 (20:06 +0200)]
dmaengine: edma: check for echan->edesc => NULL in edma_dma_pause()
I added book keeping of whether or not the 8250-dma driver has an RX
transfer pending or not so we don't BUG here if it calls
dmaengine_pause() on a channel which has not a pending transfer. Guess
what, this is not enough.
The following can be triggered with a busy RX channel and hackbench in
background:
- DMA transfer completes. The callback is delayed via
vchan_cookie_complete() into a tasklet so it das not happen asap.
- hackbench keeps the system busy so the tasklet does not run "soon".
- the UART collected enough data and generates an "timeout"-interrupt.
Since 8250-dma *thinks* the DMA-transfer is still pending it tries to
cancel it via invoking dmaengine_pause() first. This causes the segfault
because echan->edesc is NULL now that the transfer completed (however
the callback did not run yet).
With this patch we don't BUG in the scenario described.
Signed-off-by: Sebastian Andrzej Siewior <bigeasy@linutronix.de>
Acked-by: Peter Ujfalusi <peter.ujfalusi@ti.com>
Signed-off-by: Vinod Koul <vinod.koul@intel.com>