The old hdev->hid_get_raw_report() was broken by design. It was never
clear what kind of HW request it should trigger. Benjamin fixed that with
the core HID cleanup, though we never really adjusted uhid.
Unfortunately, our old UHID_FEATURE command was modelled around the broken
hid_get_raw_report(). We converted it silently to the new GET_REPORT and
nothing broke. Make this explicit by renaming UHID_FEATURE to
UHID_GET_REPORT and UHID_FEATURE_ANSWER to UHID_GET_REPORT_REPLY.
Note that this is 100% ABI compatible to UHID_FEATURE. This is just a
rename. But we have to keep the old definitions around to not break API.
>From now on, UHID_GET_REPORT must trigger a GET_REPORT request on the
user-space hardware layer. All the ambiguity due to the weird "feature"
name should be gone now.
Signed-off-by: David Herrmann <dh.herrmann@gmail.com>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
Pull drm fixes from Dave Airlie:
"Intel and radeon fixes.
Post KS/LC git requests from i915 and radeon stacked up. They are all
fixes along with some new pci ids for radeon, and one maintainers file
entry.
- i915: display fixes and irq fixes
- radeon: pci ids, and misc gpuvm, dpm and hdp cache"
* 'drm-fixes' of git://people.freedesktop.org/~airlied/linux: (29 commits)
MAINTAINERS: Add entry for Renesas DRM drivers
drm/radeon: add additional SI pci ids
drm/radeon: add new bonaire pci ids
drm/radeon: add new KV pci id
Revert "drm/radeon: Use write-combined CPU mappings of ring buffers with PCIe"
drm/radeon: fix active_cu mask on SI and CIK after re-init (v3)
drm/radeon: fix active cu count for SI and CIK
drm/radeon: re-enable selective GPUVM flushing
drm/radeon: Sync ME and PFP after CP semaphore waits v4
drm/radeon: fix display handling in radeon_gpu_reset
drm/radeon: fix pm handling in radeon_gpu_reset
drm/radeon: Only flush HDP cache for indirect buffers from userspace
drm/radeon: properly document reloc priority mask
drm/i915: don't try to retrain a DP link on an inactive CRTC
drm/i915: make sure VDD is turned off during system suspend
drm/i915: cancel hotplug and dig_port work during suspend and unload
drm/i915: fix HPD IRQ reenable work cancelation
drm/i915: take display port power domain in DP HPD handler
drm/i915: Don't try to enable cursor from setplane when crtc is disabled
drm/i915: Skip load detect when intel_crtc->new_enable==true
...
Add cpu support to meta expresion.
This allows you to match packets with cpu number.
Signed-off-by: Ana Rey <anarey@gmail.com>
Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
Add pkttype support for ip, ipv6 and inet families of tables.
This allows you to fetch the meta packet type based on the link layer
information. The loopback traffic is a special case, the packet type
is guessed from the network layer header.
No special handling for bridge and arp since we're not going to see
such traffic in the loopback interface.
Joint work with Alvaro Neira Ayuso <alvaroneay@gmail.com>
Signed-off-by: Alvaro Neira Ayuso <alvaroneay@gmail.com>
Signed-off-by: Ana Rey <anarey@gmail.com>
Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
In many cases the test pattern has selectable values for each colour
component. Implement controls for raw bayer components. Additional controls
should be defined for colour components that are not covered by these
controls.
Signed-off-by: Sakari Ailus <sakari.ailus@linux.intel.com>
Acked-by: Hans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: Mauro Carvalho Chehab <m.chehab@samsung.com>
Similarly, the u_int8_t type is non-standard and not defined. Change
it to use __u8 like the rest of the netfilter headers.
Signed-off-by: Mike Frysinger <vapier@gentoo.org>
Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
One of our customer's application only needs file names, not file
attributes. With directories having 10K+ inodes (assuming buffer cache
has directory blocks cached having file names, but inode cache is
limited and hence need eviction of older cached inodes), older inodes
are evicted periodically. So if they keep on doing readdir(2) from NSF
client on multiple directories, some directory's files are periodically
removed from inode cache and hence new readdir(2) on same directory
requires disk access to bring back inodes again to inode cache.
As READDIRPLUS request fetches attributes also, doing getattr on each
file on server, it causes unnecessary disk accesses. If READDIRPLUS on
NFS client is returned with -ENOTSUPP, NFS client uses READDIR request
which just gets the names of the files in a directory, not attributes,
hence avoiding disk accesses on server.
There's already a corresponding client-side mount option, but an export
option reduces the need for configuration across multiple clients.
This flag affects NFSv3 only. If it turns out it's needed for NFSv4 as
well then we may have to figure out how to extend the behavior to NFSv4,
but it's not currently obvious how to do that.
Signed-off-by: Rajesh Ghanekar <rajesh_ghanekar@symantec.com>
Signed-off-by: J. Bruce Fields <bfields@redhat.com>
Commit 9183df25fe ("shm: add memfd_create() syscall") added a new
system call (memfd_create) but didn't update the asm-generic unistd
header.
This patch adds the new system call to the asm-generic version of
unistd.h so that it can be used by architectures such as arm64.
Cc: Arnd Bergmann <arnd@arndb.de>
Reviewed-by: David Herrmann <dh.herrmann@gmail.com>
Signed-off-by: Will Deacon <will.deacon@arm.com>
Pull infiniband/rdma updates from Roland Dreier:
"Main set of InfiniBand/RDMA updates for 3.17 merge window:
- MR reregistration support
- MAD support for RMPP in userspace
- iSER and SRP initiator updates
- ocrdma hardware driver updates
- other fixes..."
* tag 'rdma-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/roland/infiniband: (52 commits)
IB/srp: Fix return value check in srp_init_module()
RDMA/ocrdma: report asic-id in query device
RDMA/ocrdma: Update sli data structure for endianness
RDMA/ocrdma: Obtain SL from device structure
RDMA/uapi: Include socket.h in rdma_user_cm.h
IB/srpt: Handle GID change events
IB/mlx5: Use ARRAY_SIZE instead of sizeof/sizeof[0]
IB/mlx4: Use ARRAY_SIZE instead of sizeof/sizeof[0]
RDMA/amso1100: Check for integer overflow in c2_alloc_cq_buf()
IPoIB: Remove unnecessary test for NULL before debugfs_remove()
IB/mad: Add user space RMPP support
IB/mad: add new ioctl to ABI to support new registration options
IB/mad: Add dev_notice messages for various umad/mad registration failures
IB/mad: Update module to [pr|dev]_* style print messages
IB/ipoib: Avoid multicast join attempts with invalid P_key
IB/umad: Update module to [pr|dev]_* style print messages
IB/ipoib: Avoid flushing the workqueue from worker context
IB/ipoib: Use P_Key change event instead of P_Key polling mechanism
IB/ipath: Add P_Key change event support
mlx4_core: Add support for secure-host and SMP firewall
...
Pull block driver changes from Jens Axboe:
"Nothing out of the ordinary here, this pull request contains:
- A big round of fixes for bcache from Kent Overstreet, Slava Pestov,
and Surbhi Palande. No new features, just a lot of fixes.
- The usual round of drbd updates from Andreas Gruenbacher, Lars
Ellenberg, and Philipp Reisner.
- virtio_blk was converted to blk-mq back in 3.13, but now Ming Lei
has taken it one step further and added support for actually using
more than one queue.
- Addition of an explicit SG_FLAG_Q_AT_HEAD for block/bsg, to
compliment the the default behavior of adding to the tail of the
queue. From Douglas Gilbert"
* 'for-3.17/drivers' of git://git.kernel.dk/linux-block: (86 commits)
bcache: Drop unneeded blk_sync_queue() calls
bcache: add mutex lock for bch_is_open
bcache: Correct printing of btree_gc_max_duration_ms
bcache: try to set b->parent properly
bcache: fix memory corruption in init error path
bcache: fix crash with incomplete cache set
bcache: Fix more early shutdown bugs
bcache: fix use-after-free in btree_gc_coalesce()
bcache: Fix an infinite loop in journal replay
bcache: fix crash in bcache_btree_node_alloc_fail tracepoint
bcache: bcache_write tracepoint was crashing
bcache: fix typo in bch_bkey_equal_header
bcache: Allocate bounce buffers with GFP_NOWAIT
bcache: Make sure to pass GFP_WAIT to mempool_alloc()
bcache: fix uninterruptible sleep in writeback thread
bcache: wait for buckets when allocating new btree root
bcache: fix crash on shutdown in passthrough mode
bcache: fix lockdep warnings on shutdown
bcache allocator: send discards with correct size
bcache: Fix to remove the rcu_sched stalls.
...
added struct sockaddr_storage to rdma_user_cm.h without also adding an
include for linux/socket.h to make sure it is defined. Systemtap
needs the header files to build standalone and cannot rely on other
files to pre-include other headers, so add linux/socket.h to the list
of includes in this file.
Fixes: ee7aed4528 ("RDMA/ucma: Support querying for AF_IB addresses")
Signed-off-by: Doug Ledford <dledford@redhat.com>
Signed-off-by: Roland Dreier <roland@purestorage.com>
Whenever userspace mapping related to our userptr change
we wait for it to become idle and unmap it from GTT.
v2: rebased, fix mutex unlock in error path
v3: improve commit message
Signed-off-by: Christian König <christian.koenig@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Avoid problems with writeback by limiting userptr to anonymous memory.
v2: add commit and code comments
Signed-off-by: Christian König <christian.koenig@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
This patch adds an IOCTL for turning a pointer supplied by
userspace into a buffer object.
It imposes several restrictions upon the memory being mapped:
1. It must be page aligned (both start/end addresses, i.e ptr and size).
2. It must be normal system memory, not a pointer into another map of IO
space (e.g. it must not be a GTT mmapping of another object).
3. The BO is mapped into GTT, so the maximum amount of memory mapped at
all times is still the GTT limit.
4. The BO is only mapped readonly for now, so no write support.
5. List of backing pages is only acquired once, so they represent a
snapshot of the first use.
Exporting and sharing as well as mapping of buffer objects created by
this function is forbidden and results in an -EPERM.
v2: squash all previous changes into first public version
v3: fix tabs, map readonly, don't use MM callback any more
v4: set TTM_PAGE_FLAG_SG so that TTM never messes with the pages,
pin/unpin pages on bind/unbind instead of populate/unpopulate
v5: rebased on 3.17-wip, IOCTL renamed to userptr, reject any unknown
flags, better handle READONLY flag, improve permission check
v6: fix ptr cast warning, use set_page_dirty/mark_page_accessed on unpin
v7: add warning about it's availability in the API definition
v8: drop access_ok check, fix VM mapping bits
Signed-off-by: Christian König <christian.koenig@amd.com>
Reviewed-by: Alex Deucher <alexander.deucher@amd.com> (v4)
Reviewed-by: Jérôme Glisse <jglisse@redhat.com> (v4)
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Using the new registration mechanism, define a flag that indicates the
user wishes to process RMPP messages in user space rather than have
the kernel process them.
Signed-off-by: Ira Weiny <ira.weiny@intel.com>
Signed-off-by: Roland Dreier <roland@purestorage.com>
Registrations options are specified through flags. Definitions of flags will
be in subsequent patches.
Signed-off-by: Ira Weiny <ira.weiny@intel.com>
Signed-off-by: Roland Dreier <roland@purestorage.com>
Pull nouveau drm updates from Ben Skeggs:
"Apologies for not getting this done in time for Dave's drm-next merge
window. As he mentioned, a pre-existing bug reared its head a lot
more obviously after this lot of changes. It took quite a bit of time
to track it down. In any case, Dave suggested I try my luck by
sending directly to you this time.
Overview:
- more code for Tegra GK20A from NVIDIA - probing, reclockig
- better fix for Kepler GPUs that have the graphics engine powered
off on startup, method courtesy of info provided by NVIDIA
- unhardcoding of a bunch of graphics engine setup on
Fermi/Kepler/Maxwell, will hopefully solve some issues people have
noticed on higher-end models
- support for "Zero Bandwidth Clear" on Fermi/Kepler/Maxwell, needs
userspace support in general, but some lucky apps will benefit
automagically
- reviewed/exposed the full object APIs to userspace (finally), gives
it access to perfctrs, ZBC controls, various events. More to come
in the future.
- various other fixes"
Acked-by: Dave Airlie <airlied@redhat.com>
* 'linux-3.17' of git://anongit.freedesktop.org/git/nouveau/linux-2.6: (87 commits)
drm/nouveau: expose the full object/event interfaces to userspace
drm/nouveau: fix headless mode
drm/nouveau: hide sysfs pstate file behind an option again
drm/nv50/disp: shhh compiler
drm/gf100-/gr: implement the proper SetShaderExceptions method
drm/gf100-/gr: remove some broken ltc bashing, for now
drm/gf100-/gr: unhardcode attribute cb config
drm/gf100-/gr: fetch tpcs-per-ppc info on startup
drm/gf100-/gr: unhardcode pagepool config
drm/gf100-/gr: unhardcode bundle cb config
drm/gf100-/gr: improve initial context patch list helpers
drm/gf100-/gr: add support for zero bandwidth clear
drm/nouveau/ltc: add zbc drivers
drm/nouveau/ltc: s/ltcg/ltc/ + cleanup
drm/nouveau: use ram info from nvif_device
drm/nouveau/disp: implement nvif event sources for vblank/connector notifiers
drm/nouveau/disp: allow user direct access to channel control registers
drm/nouveau/disp: audit and version display classes
drm/nouveau/disp: audit and version SCANOUTPOS method
drm/nv50-/disp: audit and version PIOR_PWR method
...
Pull input updates from Dmitry Torokhov:
- big update to Wacom driver by Benjamin Tissoires, converting it to
HID infrastructure and unifying USB and Bluetooth models
- large update to ALPS driver by Hans de Goede, which adds support for
newer touchpad models as well as cleans up and restructures the code
- more changes to Atmel MXT driver, including device tree support
- new driver for iPaq x3xxx touchscreen
- driver for serial Wacom tablets
- driver for Microchip's CAP1106
- assorted cleanups and improvements to existing drover and input core
* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/dtor/input: (93 commits)
Input: wacom - update the ABI doc according to latest changes
Input: wacom - only register once the MODULE_* macros
Input: HID - remove hid-wacom Bluetooth driver
Input: wacom - add copyright note and bump version to 2.0
Input: wacom - remove passing id for wacom_set_report
Input: wacom - check for bluetooth protocol while setting OLEDs
Input: wacom - handle Intuos 4 BT in wacom.ko
Input: wacom - handle Graphire BT tablets in wacom.ko
Input: wacom - prepare the driver to include BT devices
Input: hyperv-keyboard - register as a wakeup source
Input: imx_keypad - remove ifdef round PM methods
Input: jornada720_ts - get rid of space indentation and use tab
Input: jornada720_ts - switch to using managed resources
Input: alps - Rushmore and v7 resolution support
Input: mcs5000_ts - remove ifdef around power management methods
Input: mcs5000_ts - protect PM functions with CONFIG_PM_SLEEP
Input: ads7846 - release resources on failure for clean exit
Input: wacom - add support for 0x12C ISDv4 sensor
Input: atmel_mxt_ts - use deep sleep mode when stopped
ARM: dts: am437x-gp-evm: Update binding for touchscreen size
...
Merge more incoming from Andrew Morton:
"Two new syscalls:
memfd_create in "shm: add memfd_create() syscall"
kexec_file_load in "kexec: implementation of new syscall kexec_file_load"
And:
- Most (all?) of the rest of MM
- Lots of the usual misc bits
- fs/autofs4
- drivers/rtc
- fs/nilfs
- procfs
- fork.c, exec.c
- more in lib/
- rapidio
- Janitorial work in filesystems: fs/ufs, fs/reiserfs, fs/adfs,
fs/cramfs, fs/romfs, fs/qnx6.
- initrd/initramfs work
- "file sealing" and the memfd_create() syscall, in tmpfs
- add pci_zalloc_consistent, use it in lots of places
- MAINTAINERS maintenance
- kexec feature work"
* emailed patches from Andrew Morton <akpm@linux-foundation.org: (193 commits)
MAINTAINERS: update nomadik patterns
MAINTAINERS: update usb/gadget patterns
MAINTAINERS: update DMA BUFFER SHARING patterns
kexec: verify the signature of signed PE bzImage
kexec: support kexec/kdump on EFI systems
kexec: support for kexec on panic using new system call
kexec-bzImage64: support for loading bzImage using 64bit entry
kexec: load and relocate purgatory at kernel load time
purgatory: core purgatory functionality
purgatory/sha256: provide implementation of sha256 in purgaotory context
kexec: implementation of new syscall kexec_file_load
kexec: new syscall kexec_file_load() declaration
kexec: make kexec_segment user buffer pointer a union
resource: provide new functions to walk through resources
kexec: use common function for kimage_normal_alloc() and kimage_crash_alloc()
kexec: move segment verification code in a separate function
kexec: rename unusebale_pages to unusable_pages
kernel: build bin2c based on config option CONFIG_BUILD_BIN2C
bin2c: move bin2c in scripts/basic
shm: wait for pins to be released when sealing
...
