03 Mar, 2016
4 commits
-
Add support for Intel R200 depth camera in uvc driver.
This includes adding new uvc GUIDs for the new pixel formats,
adding new V4L pixel format definition to user api headers,
and updating the uvc driver GUID-to-4cc tables with the new formats.Tested-by: Greenberg, Aviv D
Signed-off-by: Aviv Greenberg
Signed-off-by: Sakari Ailus
Signed-off-by: Guennadi Liakhovetski
Signed-off-by: Mauro Carvalho Chehab -
Make the base offset hexadecimal to simplify debugging since the base
addresses are hex too.Signed-off-by: Hans Verkuil
Signed-off-by: Mauro Carvalho Chehab -
We need to import the changes at media.h, as we have a
followup patch that depends on it.* v4l_for_linus:
[media] media.h: use hex values for range offsets, move connectors base up.
[media] adv7604: fix tx 5v detect regression -
Make the base offset hexadecimal to simplify debugging since the base
addresses are hex too.The offsets for connectors is also changed to start after the 'reserved'
range 0x10000-0x2ffff.Signed-off-by: Hans Verkuil
Signed-off-by: Mauro Carvalho Chehab
27 Feb, 2016
2 commits
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Add ALSA Media Controller capture, playback, and mixer
function entity defines.[mchehab@osg.samsung.com: fix a trivial merge conflict and start
MEDIA_ENT_AUDIO_F from 3000]Signed-off-by: Shuah Khan
Acked-by: Takashi Iwai
Signed-off-by: Mauro Carvalho Chehab -
Declare the interface types to be used on alsa for
the new G_TOPOLOGY ioctl.Signed-off-by: Shuah Khan
Acked-by: Takashi Iwai
Signed-off-by: Mauro Carvalho Chehab
19 Feb, 2016
2 commits
-
The formats use three planes through the multiplanar API, allowing for
non-contiguous planes in memory.Signed-off-by: Laurent Pinchart
Acked-by: Hans Verkuil
Signed-off-by: Mauro Carvalho Chehab -
Some drivers also need a control like
V4L2_CID_MPEG_MFC51_VIDEO_FORCE_FRAME_TYPE to force an encoder
key frame. Add a general V4L2_CID_MPEG_VIDEO_FORCE_KEY_FRAME
so the new drivers and applications can use it.Signed-off-by: Wu-Cheng Li
Signed-off-by: Hans Verkuil
Signed-off-by: Mauro Carvalho Chehab
16 Feb, 2016
4 commits
-
Some macros were changed/removed at the material for v4.5. We need
to sync with those changes here, in order to avoid troubles.* v4l_for_linus:
[media] media.h: get rid of MEDIA_ENT_F_CONN_TEST
[media] [for,v4.5] media.h: increase the spacing between function ranges
[media] media: i2c/adp1653: probe: fix erroneous return value
[media] media: davinci_vpfe: fix missing unlock on error in vpfe_prepare_pipeline() -
Defining it as a connector was a bad idea. Remove it while it is
not too late.Signed-off-by: Mauro Carvalho Chehab
-
Defining it as a connector was a bad idea. Remove it while it is
not too late.Signed-off-by: Mauro Carvalho Chehab
-
Each function range is quite narrow and especially for connectors this
will pose a problem. Increase the function ranges while we still can and
move the connector range to the end so that range is practically limitless.[mchehab@osg.samsung.com: Rebased to apply at Linus tree]
Signed-off-by: Hans VerkuilSigned-off-by: Mauro Carvalho Chehab
10 Feb, 2016
1 commit
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HDMI and DisplayPort both support IT Content Type information that
tells the receiver what type of material the video is, graphics such
as from a PC desktop, Photo, Cinema or Game (low-latency).This patch adds controls for receivers and transmitters to get/set
this information.Signed-off-by: Hans Verkuil
Signed-off-by: Mauro Carvalho Chehab
09 Feb, 2016
1 commit
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Linux 4.5-rc3
* tag 'v4.5-rc3': (644 commits)
Linux 4.5-rc3
epoll: restrict EPOLLEXCLUSIVE to POLLIN and POLLOUT
radix-tree: fix oops after radix_tree_iter_retry
MAINTAINERS: trim the file triggers for ABI/API
dax: dirty inode only if required
thp: make deferred_split_scan() work again
mm: replace vma_lock_anon_vma with anon_vma_lock_read/write
ocfs2/dlm: clear refmap bit of recovery lock while doing local recovery cleanup
um: asm/page.h: remove the pte_high member from struct pte_t
mm, hugetlb: don't require CMA for runtime gigantic pages
mm/hugetlb: fix gigantic page initialization/allocation
mm: downgrade VM_BUG in isolate_lru_page() to warning
mempolicy: do not try to queue pages from !vma_migratable()
mm, vmstat: fix wrong WQ sleep when memory reclaim doesn't make any progress
vmstat: make vmstat_update deferrable
mm, vmstat: make quiet_vmstat lighter
mm/Kconfig: correct description of DEFERRED_STRUCT_PAGE_INIT
memblock: don't mark memblock_phys_mem_size() as __init
dump_stack: avoid potential deadlocks
mm: validate_mm browse_rb SMP race condition
...
02 Feb, 2016
1 commit
-
Pull libnvdimm fixes from Dan Williams:
"1/ Fixes to the libnvdimm 'pfn' device that establishes a reserved
area for storing a struct page array.2/ Fixes for dax operations on a raw block device to prevent pagecache
collisions with dax mappings.3/ A fix for pfn_t usage in vm_insert_mixed that lead to a null
pointer de-reference.These have received build success notification from the kbuild robot
across 153 configs and pass the latest ndctl tests"* 'libnvdimm-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/nvdimm/nvdimm:
phys_to_pfn_t: use phys_addr_t
mm: fix pfn_t to page conversion in vm_insert_mixed
block: use DAX for partition table reads
block: revert runtime dax control of the raw block device
fs, block: force direct-I/O for dax-enabled block devices
devm_memremap_pages: fix vmem_altmap lifetime + alignment handling
libnvdimm, pfn: fix restoring memmap location
libnvdimm: fix mode determination for e820 devices
01 Feb, 2016
2 commits
-
The v4l2-common.h user space header was split off from videodev2.h, but
the dual licensing of the videodev2.h (as well as other V4L2 headers) was
missed. Change the license of the v4l2-common.h from GNU GPL v2 to both
GNU GPL v2 and BSD.Sakari Ailus :
> Would you approve a license change of the patches to
> include/uapi/linux/v4l2-common.h (formerly include/linux/v4l2-common.h) you
> or your company have contributed from GNU GPL v2 to dual GNU GPL v2 and BSD
> licenses, changing the copyright notice in the file as below (from
> videodev2.h):
>
> -------------8 * This program is free software; you can redistribute it and/or modify
> * it under the terms of the GNU General Public License as published by
> * the Free Software Foundation; either version 2 of the License, or
> * (at your option) any later version.
> *
> * This program is distributed in the hope that it will be useful,
> * but WITHOUT ANY WARRANTY; without even the implied warranty of
> * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
> * GNU General Public License for more details.
> *
> * Alternatively you can redistribute this file under the terms of the
> * BSD license as stated below:
> *
> * Redistribution and use in source and binary forms, with or without
> * modification, are permitted provided that the following conditions
> * are met:
> * 1. Redistributions of source code must retain the above copyright
> * notice, this list of conditions and the following disclaimer.
> * 2. Redistributions in binary form must reproduce the above copyright
> * notice, this list of conditions and the following disclaimer in
> * the documentation and/or other materials provided with the
> * distribution.
> * 3. The names of its contributors may not be used to endorse or promote
> * products derived from this software without specific prior written
> * permission.
> *
> * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
> * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
> * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
> * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
> * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
> * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED
> * TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
> * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
> * LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
> * NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
> * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
> -------------8:
> No problem from my side.Hans Verkuil :
> Acked-by: Hans VerkuilAaro Koskinen :
> This fine also for us.
>
> Acked-by: Aaro KoskinenSigned-off-by: Sakari Ailus
Acked-by: Hans Verkuil
Acked-by: Aaro Koskinen
Acked-by: Mauro Carvalho Chehab
Signed-off-by: Mauro Carvalho Chehab -
Very old hardware may have an analog stage tuner. Those hardware
consists of a PLL that converts a RF signal into IF signals.Depending on the hardware, those video IF signal can be
decoded directly by the bridge chipset. Most Conexant
chips (bt8x8, cx2388x, etc) have internally the decoders
for that. Yet, even on such hardware, the tuner may have
internally its own TV multi-standard decoder like tda9887.The same happens with the audio IF signal, where some bridges
are capable of receiving it, while others require an external
IF-PLL sound decoder, like msp3400.Those external IF-PLL audio and video decoders have their own
I2C address, and use different drivers to handle them. So, they're
mapped as different subdevices on Linux.Thankfully, all modern hardware comes with an IC chip that
has both the RF and the IF stages on it, being capable of
decoding audio and video IF signals internally.Yet, as we need to support drivers that can work with either
analog or silicon tuners, we need to add two entity types
for those old hardware.Signed-off-by: Mauro Carvalho Chehab
31 Jan, 2016
1 commit
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Dynamically enabling DAX requires that the page cache first be flushed
and invalidated. This must occur atomically with the change of DAX mode
otherwise we confuse the fsync/msync tracking and violate data
durability guarantees. Eliminate the possibilty of DAX-disabled to
DAX-enabled transitions for now and revisit this for the next cycle.Cc: Jan Kara
Cc: Jeff Moyer
Cc: Christoph Hellwig
Cc: Dave Chinner
Cc: Matthew Wilcox
Cc: Andrew Morton
Cc: Ross Zwisler
Signed-off-by: Dan Williams
27 Jan, 2016
1 commit
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Export further minor feature bitmasks and the varyings count from
the GPU specifications registers to userspace.Acked-by: Christian Gmeiner
Signed-off-by: Russell King
Signed-off-by: Lucas Stach
25 Jan, 2016
1 commit
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Enable MEDIA_IOC_G_TOPOLOGY ioctl for Kernel 4.6.
This reverts commit be0270ec89e6b9b49de7e533dd1f3a89ad34d205.
Signed-off-by: Mauro Carvalho Chehab
23 Jan, 2016
2 commits
-
Pull ext4 updates from Ted Ts'o:
"Some locking and page fault bug fixes from Jan Kara, some ext4
encryption fixes from me, and Li Xi's Project Quota commits"* tag 'ext4_for_linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tytso/ext4:
fs: clean up the flags definition in uapi/linux/fs.h
ext4: add FS_IOC_FSSETXATTR/FS_IOC_FSGETXATTR interface support
ext4: add project quota support
ext4: adds project ID support
ext4 crypto: simplify interfaces to directory entry insert functions
ext4 crypto: add missing locking for keyring_key access
ext4: use pre-zeroed blocks for DAX page faults
ext4: implement allocation of pre-zeroed blocks
ext4: provide ext4_issue_zeroout()
ext4: get rid of EXT4_GET_BLOCKS_NO_LOCK flag
ext4: document lock ordering
ext4: fix races of writeback with punch hole and zero range
ext4: fix races between buffered IO and collapse / insert range
ext4: move unlocked dio protection from ext4_alloc_file_blocks()
ext4: fix races between page faults and hole punching -
Pull more xfs updates from Dave Chinner:
"This is the second update for XFS that I mentioned in the original
pull request last week.It contains a revert for a suspend regression in 4.4 and a fix for a
long standing log recovery issue that has been further exposed by all
the log recovery changes made in the original 4.5 merge.There is one more thing in this pull request - one that I forgot to
merge into the origin. That is, pulling the XFS_IOC_FS[GS]ETXATTR
ioctl up to the VFS level so that other filesystems can also use it
for modifying project quota IDsSummary:
- promotion of XFS_IOC_FS[GS]ETXATTR ioctl to the vfs level so that
it can be shared with other filesystems. The ext4 project quota
functionality is the first target for this. The commits in this
series have not been updated with review or final SOB tags because
the branch they were originally published in was needed by ext4.
Those tags are:Reviewed-by: Theodore Ts'o
Signed-off-by: Dave Chinner- Revert a change that is causing suspend failures.
- Fix a use-after-free that can occur on log mount failures. Been
around forever, but now exposed by other changes to log recovery
made in the first 4.5 merge"* tag 'xfs-for-linus-4.5-2' of git://git.kernel.org/pub/scm/linux/kernel/git/dgc/linux-xfs:
xfs: log mount failures don't wait for buffers to be released
Revert "xfs: clear PF_NOFREEZE for xfsaild kthread"
xfs: introduce per-inode DAX enablement
xfs: use FS_XFLAG definitions directly
fs: XFS_IOC_FS[SG]SETXATTR to FS_IOC_FS[SG]ETXATTR promotion
22 Jan, 2016
5 commits
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Pull NVMe updates from Jens Axboe:
"Last branch for this series is the nvme changes. It's in a separate
branch to avoid splitting too much between core and NVMe changes,
since NVMe is still helping drive some blk-mq changes. That said, not
a huge amount of core changes in here. The grunt of the work is the
continued split of the code"* 'for-4.5/nvme' of git://git.kernel.dk/linux-block: (67 commits)
uapi: update install list after nvme.h rename
NVMe: Export NVMe attributes to sysfs group
NVMe: Shutdown controller only for power-off
NVMe: IO queue deletion re-write
NVMe: Remove queue freezing on resets
NVMe: Use a retryable error code on reset
NVMe: Fix admin queue ring wrap
nvme: make SG_IO support optional
nvme: fixes for NVME_IOCTL_IO_CMD on the char device
nvme: synchronize access to ctrl->namespaces
nvme: Move nvme_freeze/unfreeze_queues to nvme core
PCI/AER: include header file
NVMe: Export namespace attributes to sysfs
NVMe: Add pci error handlers
block: remove REQ_NO_TIMEOUT flag
nvme: merge iod and cmd_info
nvme: meta_sg doesn't have to be an array
nvme: properly free resources for cancelled command
nvme: simplify completion handling
nvme: special case AEN requests
... -
Pull lightnvm fixes and updates from Jens Axboe:
"This should have been part of the drivers branch, but it arrived a bit
late and wasn't based on the official core block driver branch. So
they got a small scolding, but got a pass since it's still new. Hence
it's in a separate branch.This is mostly pure fixes, contained to lightnvm/, and minor feature
additions"* 'for-4.5/lightnvm' of git://git.kernel.dk/linux-block: (26 commits)
lightnvm: ensure that nvm_dev_ops can be used without CONFIG_NVM
lightnvm: introduce factory reset
lightnvm: use system block for mm initialization
lightnvm: introduce ioctl to initialize device
lightnvm: core on-disk initialization
lightnvm: introduce mlc lower page table mappings
lightnvm: add mccap support
lightnvm: manage open and closed blocks separately
lightnvm: fix missing grown bad block type
lightnvm: reference rrpc lun in rrpc block
lightnvm: introduce nvm_submit_ppa
lightnvm: move rq->error to nvm_rq->error
lightnvm: support multiple ppas in nvm_erase_ppa
lightnvm: move the pages per block check out of the loop
lightnvm: sectors first in ppa list
lightnvm: fix locking and mempool in rrpc_lun_gc
lightnvm: put block back to gc list on its reclaim fail
lightnvm: check bi_error in gc
lightnvm: return the get_bb_tbl return value
lightnvm: refactor end_io functions for sync
... -
Merge third patch-bomb from Andrew Morton:
"I'm pretty much done for -rc1 now:- the rest of MM, basically
- lib/ updates
- checkpatch, epoll, hfs, fatfs, ptrace, coredump, exit
- cpu_mask simplifications
- kexec, rapidio, MAINTAINERS etc, etc.
- more dma-mapping cleanups/simplifications from hch"
* emailed patches from Andrew Morton : (109 commits)
MAINTAINERS: add/fix git URLs for various subsystems
mm: memcontrol: add "sock" to cgroup2 memory.stat
mm: memcontrol: basic memory statistics in cgroup2 memory controller
mm: memcontrol: do not uncharge old page in page cache replacement
Documentation: cgroup: add memory.swap.{current,max} description
mm: free swap cache aggressively if memcg swap is full
mm: vmscan: do not scan anon pages if memcg swap limit is hit
swap.h: move memcg related stuff to the end of the file
mm: memcontrol: replace mem_cgroup_lruvec_online with mem_cgroup_online
mm: vmscan: pass memcg to get_scan_count()
mm: memcontrol: charge swap to cgroup2
mm: memcontrol: clean up alloc, online, offline, free functions
mm: memcontrol: flatten struct cg_proto
mm: memcontrol: rein in the CONFIG space madness
net: drop tcp_memcontrol.c
mm: memcontrol: introduce CONFIG_MEMCG_LEGACY_KMEM
mm: memcontrol: allow to disable kmem accounting for cgroup2
mm: memcontrol: account "kmem" consumers in cgroup2 memory controller
mm: memcontrol: move kmem accounting code to CONFIG_MEMCG
mm: memcontrol: separate kmem code from legacy tcp accounting code
... -
Pull overlayfs updates from Miklos Szeredi:
"This contains several bug fixes and a new mount option
'default_permissions' that allows read-only exported NFS
filesystems to be used as lower layer"* 'overlayfs-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/mszeredi/vfs:
ovl: check dentry positiveness in ovl_cleanup_whiteouts()
ovl: setattr: check permissions before copy-up
ovl: root: copy attr
ovl: move super block magic number to magic.h
ovl: use a minimal buffer in ovl_copy_xattr
ovl: allow zero size xattr
ovl: default permissions -
Pull fuse updates from Miklos Szeredi:
"This adds SEEK_HOLE and SEEK_DATA support in lseek"* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/mszeredi/fuse:
fuse: add support for SEEK_HOLE and SEEK_DATA in lseek
21 Jan, 2016
1 commit
-
Currently, epoll file descriptors or epfds (the fd returned from
epoll_create[1]()) that are added to a shared wakeup source are always
added in a non-exclusive manner. This means that when we have multiple
epfds attached to a shared fd source they are all woken up. This creates
thundering herd type behavior.Introduce a new 'EPOLLEXCLUSIVE' flag that can be passed as part of the
'event' argument during an epoll_ctl() EPOLL_CTL_ADD operation. This new
flag allows for exclusive wakeups when there are multiple epfds attached
to a shared fd event source.The implementation walks the list of exclusive waiters, and queues an
event to each epfd, until it finds the first waiter that has threads
blocked on it via epoll_wait(). The idea is to search for threads which
are idle and ready to process the wakeup events. Thus, we queue an event
to at least 1 epfd, but may still potentially queue an event to all epfds
that are attached to the shared fd source.Performance testing was done by Madars Vitolins using a modified version
of Enduro/X. The use of the 'EPOLLEXCLUSIVE' flag reduce the length of
this particular workload from 860s down to 24s.Sample epoll_clt text:
EPOLLEXCLUSIVE
Sets an exclusive wakeup mode for the epfd file descriptor that is
being attached to the target file descriptor, fd. Thus, when an event
occurs and multiple epfd file descriptors are attached to the same
target file using EPOLLEXCLUSIVE, one or more epfds will receive an
event with epoll_wait(2). The default in this scenario (when
EPOLLEXCLUSIVE is not set) is for all epfds to receive an event.
EPOLLEXCLUSIVE may only be specified with the op EPOLL_CTL_ADD.Signed-off-by: Jason Baron
Tested-by: Madars Vitolins
Cc: Ingo Molnar
Cc: Peter Zijlstra
Cc: Al Viro
Cc: Michael Kerrisk
Cc: Eric Wong
Cc: Jonathan Corbet
Cc: Andy Lutomirski
Cc: Hagen Paul Pfeifer
Signed-off-by: Andrew Morton
Signed-off-by: Linus Torvalds
18 Jan, 2016
4 commits
-
Pull security subsystem updates from James Morris:
- EVM gains support for loading an x509 cert from the kernel
(EVM_LOAD_X509), into the EVM trusted kernel keyring.- Smack implements 'file receive' process-based permission checking for
sockets, rather than just depending on inode checks.- Misc enhancments for TPM & TPM2.
- Cleanups and bugfixes for SELinux, Keys, and IMA.
* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jmorris/linux-security: (41 commits)
selinux: Inode label revalidation performance fix
KEYS: refcount bug fix
ima: ima_write_policy() limit locking
IMA: policy can be updated zero times
selinux: rate-limit netlink message warnings in selinux_nlmsg_perm()
selinux: export validatetrans decisions
gfs2: Invalid security labels of inodes when they go invalid
selinux: Revalidate invalid inode security labels
security: Add hook to invalidate inode security labels
selinux: Add accessor functions for inode->i_security
security: Make inode argument of inode_getsecid non-const
security: Make inode argument of inode_getsecurity non-const
selinux: Remove unused variable in selinux_inode_init_security
keys, trusted: seal with a TPM2 authorization policy
keys, trusted: select hash algorithm for TPM2 chips
keys, trusted: fix: *do not* allow duplicate key options
tpm_ibmvtpm: properly handle interrupted packet receptions
tpm_tis: Tighten IRQ auto-probing
tpm_tis: Refactor the interrupt setup
tpm_tis: Get rid of the duplicate IRQ probing code
... -
Pull drm updates from Dave Airlie:
"This is the main drm pull request for 4.5. I don't think I've missed
anything too major, I'm mostly back at work now but I'll probably get
some sleep in 5 years time.Summary:
New drivers:
- etnaviv:GPU driver for the 3D core on the Vivante core used in numerous
ARM boards.Highlights:
Core:
- Atomic suspend/resume helpers
- Move the headers to using userspace friendlier types.
- Documentation updates
- Lots of struct_mutex removal.
- Bunch of DP MST fixes from AMD.Panel:
- More DSI helpers
- Support for some new basic panelsi915:
- Basic Kabylake support
- DP link training and detect code refactoring
- fbc/psr fixes
- FIFO underrun fixes
- SDE interrupt handling fixes
- dma-buf/fence support in pageflip path.
- GPU side for MST audio supportradeon/amdgpu:
- Drop UMS support
- GPUVM/Scheduler optimisations
- Initial Powerplay support for Tonga/Fiji/CZ/ST
- ACP audio prerequisitesnouveau:
- GK20a instmem improvements
- PCIE link speed change supportmsm:
- DSI support for msm8960/apq8064tegra:
- Host1X support for Tegra210 SoCvc4:
- 3D acceleration supportarmada:
- Get rid of struct mutextda998x:
- Atomic modesetting support
- TMDS clock limitationsomapdrm:
- Atomic modesetting support
- improved TILER performancerockchip:
- RK3036 VOP support
- Atomic modesetting support
- Synopsys DW MIPI DSI supportexynos:
- Runtime PM support
- of_graph binding for DP panels
- Cleanup of IPP code
- Configurable plane support
- Kernel panic fixes at release time"* 'drm-next' of git://people.freedesktop.org/~airlied/linux: (711 commits)
drm/fb_cma_helper: Remove implicit call to disable_unused_functions
drm/amdgpu: add missing irq.h include
drm/vmwgfx: Fix a width / pitch mismatch on framebuffer updates
drm/vmwgfx: Fix an incorrect lock check
drm: nouveau: fix nouveau_debugfs_init prototype
drm/nouveau/pci: fix check in nvkm_pcie_set_link
drm/amdgpu: validate duplicates first
drm/amdgpu: move VM page tables to the LRU end on CS v2
drm/ttm: add ttm_bo_move_to_lru_tail function v2
drm/ttm: fix adding foreign BOs to the swap LRU
drm/ttm: fix adding foreign BOs to the LRU during init v2
drm/radeon: use kobj_to_dev()
drm/amdgpu: use kobj_to_dev()
drm/amdgpu/cz: force vce clocks when sclks are forced
drm/amdgpu/cz: force uvd clocks when sclks are forced
drm/amdgpu/cz: add code to enable forcing VCE clocks
drm/amdgpu/cz: add code to enable forcing UVD clocks
drm/amdgpu: fix lost sync_to if scheduler is enabled.
drm/amd/powerplay: fix static checker warning for return meaningless value.
drm/sysfs: use kobj_to_dev()
... -
Merge second patch-bomb from Andrew Morton:
- more MM stuff:
- Kirill's page-flags rework
- Kirill's now-allegedly-fixed THP rework
- MADV_FREE implementation
- DAX feature work (msync/fsync). This isn't quite complete but DAX
is new and it's good enough and the guys have a handle on what
needs to be done - I expect this to be wrapped in the next week or
two.- some vsprintf maintenance work
- various other misc bits
* emailed patches from Andrew Morton : (145 commits)
printk: change recursion_bug type to bool
lib/vsprintf: factor out %pN[F] handler as netdev_bits()
lib/vsprintf: refactor duplicate code to special_hex_number()
printk-formats.txt: remove unimplemented %pT
printk: help pr_debug and pr_devel to optimize out arguments
lib/test_printf.c: test dentry printing
lib/test_printf.c: add test for large bitmaps
lib/test_printf.c: account for kvasprintf tests
lib/test_printf.c: add a few number() tests
lib/test_printf.c: test precision quirks
lib/test_printf.c: check for out-of-bound writes
lib/test_printf.c: don't BUG
lib/kasprintf.c: add sanity check to kvasprintf
lib/vsprintf.c: warn about too large precisions and field widths
lib/vsprintf.c: help gcc make number() smaller
lib/vsprintf.c: expand field_width to 24 bits
lib/vsprintf.c: eliminate potential race in string()
lib/vsprintf.c: move string() below widen_string()
lib/vsprintf.c: pull out padding code from dentry_name()
printk: do cond_resched() between lines while outputting to consoles
... -
Pull sound updates from Takashi Iwai:
"We've had quite busy weeks in this cycle. Looking at ALSA core, the
significant changes are a few fixes wrt timer and sequencer ioctls
that have been revealed by fuzzer recently. Other than that, ASoC
core got a few updates about DAI link handling, but these are rather
straightforward refactoring.In drivers scene, ASoC received quite lots of new drivers in addition
to bunch of updates for still ongoing Intel Skylake support and
topology API. HD-audio gained a new HDMI/DP hotplug notification via
component. FireWire got a pile of code refactoring/updates with
SCS.1x driver integration.More highlights are shown below.
[ NOTE: this contains also many commits for DRM. This is due to the
pull of drm stable branch into sound tree, as the base of i915 audio
component work for HD-audio. The highlights below don't contain
these DRM changes, as these are supposed to be pulled via drm tree
in anyway sooner or later. ]Core:
- Handful fixes to harden ALSA timer and sequencer ioctls against
races reported by syzkaller fuzzer
- Irq description string can be unique to each card; only for
HD-audio for nowASoC:
- Conversion of the array of DAI links to a list for supporting
dynamically adding and removing DAI links
- Topology API enhancements to make everything more component based
and being able to specify PCM links via topology
- Some more fixes for the topology code, though it is still not final
and ready for enabling in production; we really need to get to the
point where that can be done
- A pile of changes for Intel SkyLake drivers which hopefully deliver
some useful initial functionality for systems with this chipset,
though there is more work still to come
- Lots of new features and cleanups for the Renesas drivers
- ANC support for WM5110
- New drivers: Imagination Technologies IPs, Atmel class D speaker,
Cirrus CS47L24 and WM1831, Dialog DA7128, Realtek RT5659 and
RT56156, Rockchip RK3036, TI PC3168A, and AMD ACP
- Rename PCM1792a driver to be generic pcm179xHD-Audio:
- Use audio component for i915 HDMI/DP hotplug handling
- On-demand binding with i915 driver
- bdl_pos_adj parameter adjustment for Baytrail controllers
- Enable power_save_node for CX20722; this shouldn't lead to
regression, hopefully
- Kabylake HDMI/DP codec support
- Quirks for Lenovo E50-80, Dell Latitude E-series, and other Dell
machines
- A few code refactoringFireWire:
- Lots of code cleanup and refactoring
- Integrate the support of SCS.1x devices into snd-oxfw driver;
snd-scs1x driver is obsoletedUSB-audio:
- Fix possible NULL dereference at disconnection
- A regression fix for Native Instruments devicesMisc:
- A few code cleanups of fm801 driver"* tag 'sound-4.5-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound: (722 commits)
ALSA: timer: Code cleanup
ALSA: timer: Harden slave timer list handling
ALSA: hda - Add fixup for Dell Latitidue E6540
ALSA: timer: Fix race among timer ioctls
ALSA: hda - add codec support for Kabylake display audio codec
ALSA: timer: Fix double unlink of active_list
ALSA: usb-audio: Fix mixer ctl regression of Native Instrument devices
ALSA: hda - fix the headset mic detection problem for a Dell laptop
ALSA: hda - Fix white noise on Dell Latitude E5550
ALSA: hda_intel: add card number to irq description
ALSA: seq: Fix race at timer setup and close
ALSA: seq: Fix missing NULL check at remove_events ioctl
ALSA: usb-audio: Avoid calling usb_autopm_put_interface() at disconnect
ASoC: hdac_hdmi: remove unused hdac_hdmi_query_pin_connlist
ASoC: AMD: Add missing include file
ALSA: hda - Fixup inverted internal mic for Lenovo E50-80
ALSA: usb: Add native DSD support for Oppo HA-1
ASoC: Make aux_dev more like a generic component
ASoC: bcm2835: cleanup includes by ordering them alphabetically
ASoC: AMD: Manage ACP 2.x SRAM banks power
...
16 Jan, 2016
4 commits
-
For uapi, need try to let all macros have same value, and MADV_FREE is
added into main branch recently, so need redefine MADV_FREE for it.At present, '8' can be shared with all architectures, so redefine it to
'8'.[sudipm.mukherjee@gmail.com: correct uniform value of MADV_FREE]
Signed-off-by: Chen Gang
Signed-off-by: Minchan Kim
Acked-by: Hugh Dickins
Cc: Ralf Baechle
Cc: Arnd Bergmann
Cc: Richard Henderson
Cc: Ivan Kokshaysky
Cc: Matt Turner
Cc: "James E.J. Bottomley"
Cc: Helge Deller
Cc: Chris Zankel
Cc: Max Filippov
Cc: Roland Dreier
Cc: Darrick J. Wong
Cc: David S. Miller
Cc: "Kirill A. Shutemov"
Cc: Shaohua Li
Cc:
Cc: Andrea Arcangeli
Cc: Andy Lutomirski
Cc: Arnd Bergmann
Cc: Benjamin Herrenschmidt
Cc: Catalin Marinas
Cc: Daniel Micay
Cc: Jason Evans
Cc: Johannes Weiner
Cc: KOSAKI Motohiro
Cc: Kirill A. Shutemov
Cc: Mel Gorman
Cc: Michael Kerrisk
Cc: Michal Hocko
Cc: Mika Penttil
Cc: Rik van Riel
Cc: Russell King
Cc: Shaohua Li
Cc: Will Deacon
Cc: Wu Fengguang
Signed-off-by: Sudip Mukherjee
Signed-off-by: Andrew Morton
Signed-off-by: Linus Torvalds -
Linux doesn't have an ability to free pages lazy while other OS already
have been supported that named by madvise(MADV_FREE).The gain is clear that kernel can discard freed pages rather than
swapping out or OOM if memory pressure happens.Without memory pressure, freed pages would be reused by userspace
without another additional overhead(ex, page fault + allocation +
zeroing).Jason Evans said:
: Facebook has been using MAP_UNINITIALIZED
: (https://lkml.org/lkml/2012/1/18/308) in some of its applications for
: several years, but there are operational costs to maintaining this
: out-of-tree in our kernel and in jemalloc, and we are anxious to retire it
: in favor of MADV_FREE. When we first enabled MAP_UNINITIALIZED it
: increased throughput for much of our workload by ~5%, and although the
: benefit has decreased using newer hardware and kernels, there is still
: enough benefit that we cannot reasonably retire it without a replacement.
:
: Aside from Facebook operations, there are numerous broadly used
: applications that would benefit from MADV_FREE. The ones that immediately
: come to mind are redis, varnish, and MariaDB. I don't have much insight
: into Android internals and development process, but I would hope to see
: MADV_FREE support eventually end up there as well to benefit applications
: linked with the integrated jemalloc.
:
: jemalloc will use MADV_FREE once it becomes available in the Linux kernel.
: In fact, jemalloc already uses MADV_FREE or equivalent everywhere it's
: available: *BSD, OS X, Windows, and Solaris -- every platform except Linux
: (and AIX, but I'm not sure it even compiles on AIX). The lack of
: MADV_FREE on Linux forced me down a long series of increasingly
: sophisticated heuristics for madvise() volume reduction, and even so this
: remains a common performance issue for people using jemalloc on Linux.
: Please integrate MADV_FREE; many people will benefit substantially.How it works:
When madvise syscall is called, VM clears dirty bit of ptes of the
range. If memory pressure happens, VM checks dirty bit of page table
and if it found still "clean", it means it's a "lazyfree pages" so VM
could discard the page instead of swapping out. Once there was store
operation for the page before VM peek a page to reclaim, dirty bit is
set so VM can swap out the page instead of discarding.One thing we should notice is that basically, MADV_FREE relies on dirty
bit in page table entry to decide whether VM allows to discard the page
or not. IOW, if page table entry includes marked dirty bit, VM
shouldn't discard the page.However, as a example, if swap-in by read fault happens, page table
entry doesn't have dirty bit so MADV_FREE could discard the page
wrongly.For avoiding the problem, MADV_FREE did more checks with PageDirty and
PageSwapCache. It worked out because swapped-in page lives on swap
cache and since it is evicted from the swap cache, the page has PG_dirty
flag. So both page flags check effectively prevent wrong discarding by
MADV_FREE.However, a problem in above logic is that swapped-in page has PG_dirty
still after they are removed from swap cache so VM cannot consider the
page as freeable any more even if madvise_free is called in future.Look at below example for detail.
ptr = malloc();
memset(ptr);
..
..
.. heavy memory pressure so all of pages are swapped out
..
..
var = *ptr; -> a page swapped-in and could be removed from
swapcache. Then, page table doesn't mark
dirty bit and page descriptor includes PG_dirty
..
..
madvise_free(ptr); -> It doesn't clear PG_dirty of the page.
..
..
..
.. heavy memory pressure again.
.. In this time, VM cannot discard the page because the page
.. has *PG_dirty*To solve the problem, this patch clears PG_dirty if only the page is
owned exclusively by current process when madvise is called because
PG_dirty represents ptes's dirtiness in several processes so we could
clear it only if we own it exclusively.Firstly, heavy users would be general allocators(ex, jemalloc, tcmalloc
and hope glibc supports it) and jemalloc/tcmalloc already have supported
the feature for other OS(ex, FreeBSD)barrios@blaptop:~/benchmark/ebizzy$ lscpu
Architecture: x86_64
CPU op-mode(s): 32-bit, 64-bit
Byte Order: Little Endian
CPU(s): 12
On-line CPU(s) list: 0-11
Thread(s) per core: 1
Core(s) per socket: 1
Socket(s): 12
NUMA node(s): 1
Vendor ID: GenuineIntel
CPU family: 6
Model: 2
Stepping: 3
CPU MHz: 3200.185
BogoMIPS: 6400.53
Virtualization: VT-x
Hypervisor vendor: KVM
Virtualization type: full
L1d cache: 32K
L1i cache: 32K
L2 cache: 4096K
NUMA node0 CPU(s): 0-11
ebizzy benchmark(./ebizzy -S 10 -n 512)Higher avg is better.
vanilla-jemalloc MADV_free-jemalloc
1 thread
records: 10 records: 10
avg: 2961.90 avg: 12069.70
std: 71.96(2.43%) std: 186.68(1.55%)
max: 3070.00 max: 12385.00
min: 2796.00 min: 11746.002 thread
records: 10 records: 10
avg: 5020.00 avg: 17827.00
std: 264.87(5.28%) std: 358.52(2.01%)
max: 5244.00 max: 18760.00
min: 4251.00 min: 17382.004 thread
records: 10 records: 10
avg: 8988.80 avg: 27930.80
std: 1175.33(13.08%) std: 3317.33(11.88%)
max: 9508.00 max: 30879.00
min: 5477.00 min: 21024.008 thread
records: 10 records: 10
avg: 13036.50 avg: 33739.40
std: 170.67(1.31%) std: 5146.22(15.25%)
max: 13371.00 max: 40572.00
min: 12785.00 min: 24088.0016 thread
records: 10 records: 10
avg: 11092.40 avg: 31424.20
std: 710.60(6.41%) std: 3763.89(11.98%)
max: 12446.00 max: 36635.00
min: 9949.00 min: 25669.0032 thread
records: 10 records: 10
avg: 11067.00 avg: 34495.80
std: 971.06(8.77%) std: 2721.36(7.89%)
max: 12010.00 max: 38598.00
min: 9002.00 min: 30636.00In summary, MADV_FREE is about much faster than MADV_DONTNEED.
This patch (of 12):
Add core MADV_FREE implementation.
[akpm@linux-foundation.org: small cleanups]
Signed-off-by: Minchan Kim
Acked-by: Michal Hocko
Acked-by: Hugh Dickins
Cc: Mika Penttil
Cc: Michael Kerrisk
Cc: Johannes Weiner
Cc: Rik van Riel
Cc: Mel Gorman
Cc: KOSAKI Motohiro
Cc: Jason Evans
Cc: Daniel Micay
Cc: "Kirill A. Shutemov"
Cc: Shaohua Li
Cc:
Cc: Andy Lutomirski
Cc: "James E.J. Bottomley"
Cc: "Kirill A. Shutemov"
Cc: "Shaohua Li"
Cc: Andrea Arcangeli
Cc: Arnd Bergmann
Cc: Benjamin Herrenschmidt
Cc: Catalin Marinas
Cc: Chen Gang
Cc: Chris Zankel
Cc: Darrick J. Wong
Cc: David S. Miller
Cc: Helge Deller
Cc: Ivan Kokshaysky
Cc: Matt Turner
Cc: Max Filippov
Cc: Ralf Baechle
Cc: Richard Henderson
Cc: Roland Dreier
Cc: Russell King
Cc: Shaohua Li
Cc: Will Deacon
Cc: Wu Fengguang
Signed-off-by: Andrew Morton
Signed-off-by: Linus Torvalds -
Pull VFIO updates from Alex Williamson:
- Fixes in AMD xgbe reset, spapr structure padding, type 1 flags (Dan
Carpenter, Alexey Kardashevskiy, Pierre Morel)- Re-introduce no-iommu mode, with a user this time (Alex Williamson)
* tag 'vfio-v4.5-rc1' of git://github.com/awilliam/linux-vfio:
vfio/iommu_type1: make use of info.flags
vfio: Include No-IOMMU mode
vfio: Add explicit alignments in vfio_iommu_spapr_tce_create
VFIO: platform: reset: fix a warning message condition -
Pull md updates from Neil Brown:
"Mostly clustered-raid1 and raid5 journal updates. one Y2038 fix and
other minor stuff.One patch removes me from the MAINTAINERS file and adds a record of my
md maintainership to Credits"Many thanks to Neil, who has been around for a _looong_ time.
* tag 'md/4.5' of git://neil.brown.name/md: (26 commits)
md/raid: only permit hot-add of compatible integrity profiles
Remove myself as MD Maintainer, and add to Credits.
raid5-cache: handle journal hotadd in quiesce
MD: add journal with array suspended
md: set MD_HAS_JOURNAL in correct places
md: Remove 'ready' field from mddev.
md: remove unnecesary md_new_event_inintr
raid5: allow r5l_io_unit allocations to fail
raid5-cache: use a mempool for the metadata block
raid5-cache: use a bio_set
raid5-cache: add journal hot add/remove support
drivers: md: use ktime_get_real_seconds()
md: avoid warning for 32-bit sector_t
raid5-cache: free meta_page earlier
raid5-cache: simplify r5l_move_io_unit_list
md: update comment for md_allow_write
md-cluster: update comments for MD_CLUSTER_SEND_LOCKED_ALREADY
md-cluster: Protect communication with mutexes
md-cluster: Defer MD reloading to mddev->thread
md-cluster: update the documentation
...
14 Jan, 2016
4 commits
-
Pull first round of SCSI updates from James Bottomley:
"This includes driver updates from the usual suspects (bfa, arcmsr,
scsi_dh_alua, lpfc, storvsc, cxlflash).The major change is the addition of the hisi_sas driver, which is an
ARM platform device for SAS. The other change of note is an enormous
style transformation to the atp870u driver (which is our worst written
SCSI driver)"* tag 'scsi-misc' of git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi: (169 commits)
cxlflash: Enable device id for future IBM CXL adapter
cxlflash: Resolve oops in wait_port_offline
cxlflash: Fix to resolve cmd leak after host reset
cxlflash: Removed driver date print
cxlflash: Fix to avoid virtual LUN failover failure
cxlflash: Fix to escalate LINK_RESET also on port 1
storvsc: Tighten up the interrupt path
storvsc: Refactor the code in storvsc_channel_init()
storvsc: Properly support Fibre Channel devices
storvsc: Fix a bug in the layout of the hv_fc_wwn_packet
mvsas: Add SGPIO support to Marvell 94xx
mpt3sas: A correction in unmap_resources
hpsa: Add box and bay information for enclosure devices
hpsa: Change SAS transport devices to bus 0.
hpsa: fix path_info_show
cciss: print max outstanding commands as a hex value
scsi_debug: Increase the reported optimal transfer length
lpfc: Update version to 11.0.0.10 for upstream patch set
lpfc: Use kzalloc instead of kmalloc
lpfc: Delete unnecessary checks before the function call "mempool_destroy"
... -
Pull libnvdimm updates from Dan Williams:
"The bulk of this has appeared in -next and independently received a
build success notification from the kbuild robot. The 'for-4.5/block-
dax' topic branch was rebased over the weekend to drop the "block
device end-of-life" rework that Al would like to see re-implemented
with a notifier, and to address bug reports against the badblocks
integration.There is pending feedback against "libnvdimm: Add a poison list and
export badblocks" received last week. Linda identified some localized
fixups that we will handle incrementally.Summary:
- Media error handling: The 'badblocks' implementation that
originated in md-raid is up-levelled to a generic capability of a
block device. This initial implementation is limited to being
consulted in the pmem block-i/o path. Later, 'badblocks' will be
consulted when creating dax mappings.- Raw block device dax: For virtualization and other cases that want
large contiguous mappings of persistent memory, add the capability
to dax-mmap a block device directly.- Increased /dev/mem restrictions: Add an option to treat all
io-memory as IORESOURCE_EXCLUSIVE, i.e. disable /dev/mem access
while a driver is actively using an address range. This behavior
is controlled via the new CONFIG_IO_STRICT_DEVMEM option and can be
overridden by the existing "iomem=relaxed" kernel command line
option.- Miscellaneous fixes include a 'pfn'-device huge page alignment fix,
block device shutdown crash fix, and other small libnvdimm fixes"* tag 'libnvdimm-for-4.5' of git://git.kernel.org/pub/scm/linux/kernel/git/nvdimm/nvdimm: (32 commits)
block: kill disk_{check|set|clear|alloc}_badblocks
libnvdimm, pmem: nvdimm_read_bytes() badblocks support
pmem, dax: disable dax in the presence of bad blocks
pmem: fail io-requests to known bad blocks
libnvdimm: convert to statically allocated badblocks
libnvdimm: don't fail init for full badblocks list
block, badblocks: introduce devm_init_badblocks
block: clarify badblocks lifetime
badblocks: rename badblocks_free to badblocks_exit
libnvdimm, pmem: move definition of nvdimm_namespace_add_poison to nd.h
libnvdimm: Add a poison list and export badblocks
nfit_test: Enable DSMs for all test NFITs
md: convert to use the generic badblocks code
block: Add badblock management for gendisks
badblocks: Add core badblock management code
block: fix del_gendisk() vs blkdev_ioctl crash
block: enable dax for raw block devices
block: introduce bdev_file_inode()
restrict /dev/mem to idle io memory ranges
arch: consolidate CONFIG_STRICT_DEVM in lib/Kconfig.debug
... -
Pull second batch of media updates from Mauro Carvalho Chehab:
"This is the second part of the media patches. It contains the media
controller next generation patches, with is the result of one year of
discussions and development. It also contains patches to enable media
controller support at the DVB subsystem.The goal is to improve the media controller to allow proper support
for other types of Video4Linux devices (radio and TV ones) and to
extend the media controller functionality to allow it to be used by
other subsystems like DVB, ALSA and IIO.In order to use the new functionality, a new ioctl is needed
(MEDIA_IOC_G_TOPOLOGY). As we're still discussing how to pack the
struct fields of this ioctl in order to avoid compat32 issues, I
decided to add a patch at the end of this series commenting out the
new ioctl, in order to postpone the addition of the new ioctl to the
next Kernel version (4.6).With that, no userspace visible changes should happen at the media
controller API, as the existing ioctls are untouched. Yet, it helps
DVB, ALSA and IIO developers to develop and test the patches adding
media controller support there, as the core will contain all required
internal changes to allow adding support for devices that belong to
those subsystems"* tag 'media/v4.5-2' of git://git.kernel.org/pub/scm/linux/kernel/git/mchehab/linux-media: (177 commits)
[media] Postpone the addition of MEDIA_IOC_G_TOPOLOGY
[media] mxl111sf: Add a tuner entity
[media] dvbdev: create links on devices with multiple frontends
[media] media-entitiy: add a function to create multiple links
[media] dvb-usb-v2: postpone removal of media_device
[media] dvbdev: Add RF connector if needed
[media] dvbdev: remove two dead functions if !CONFIG_MEDIA_CONTROLLER_DVB
[media] call media_device_init() before registering the V4L2 device
[media] uapi/media.h: Use u32 for the number of graph objects
[media] media-entity: don't sleep at media_device_register_entity()
[media] media-entity: increase max number of PADs
[media] media-entity.h: document the remaining functions
[media] media-device.h: use just one u32 counter for object ID
[media] media-entity.h fix documentation for several parameters
[media] DocBook: document media_entity_graph_walk_cleanup()
[media] move documentation to the header files
[media] media: Move MEDIA_ENTITY_MAX_PADS from media-entity.h to media-entity.c
[media] media: Remove pre-allocated entity enumeration bitmap
[media] staging: v4l: davinci_vpbe: Use the new media graph walk interface
[media] staging: v4l: omap4iss: Use the new media graph walk interface
... -
Pull input updates from Dmitry Torokhov:
- new driver for eGalaxTouch serial touchscreen
- new driver for TS-4800 touchscreen
- an update for Goodix touchscreen driver
- PS/2 mouse module was reworked to limit number of protocols we try on
pass-through ports to speed up their detection time
- wacom_w8001 touchscreen driver now reports pen and touch via separate
instances of input devices
- other driver changes* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/dtor/input: (42 commits)
Input: elantech - mark protocols v2 and v3 as semi-mt
Input: wacom_w8001 - drop use of ABS_MT_TOOL_TYPE
Input: gpio-keys - fix check for disabling unsupported keys
Input: omap-keypad - remove dead check
Input: ti_am335x_tsc - fix HWPEN interrupt handling
Input: omap-keypad - set tasklet data earlier
Input: rohm_bu21023 - fix handling of retrying firmware update
Input: ALPS - report v3 pinnacle trackstick device only if is present
Input: ALPS - detect trackstick presence for v7 protocol
Input: pcap_ts - use to_delayed_work
Input: bma150 - constify bma150_cfg structure
Input: i8042 - add Fujitsu Lifebook U745 to the nomux list
Input: egalax_ts_serial - fix potential NULL dereference on error
Input: uinput - sanity check on ff_effects_max and EV_FF
Input: uinput - rework ABS validation
Input: uinput - add new UINPUT_DEV_SETUP and UI_ABS_SETUP ioctl
Input: goodix - use "inverted_[xy]" flags instead of "rotated_screen"
Input: goodix - add axis swapping and axis inversion support
Input: goodix - use goodix_i2c_write_u8 instead of i2c_master_send
Input: goodix - add power management support
...