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git://git.kernel.org/pub/scm/linux/kernel/git/mchehab/linux-media
Pull media fixes from Mauro Carvalho Chehab:
- dvb-usb-firmware: don't do DMA on stack
- coda/imx-vdoa: platform_driver should not be const
- bdisp: Clean up file handle in open() error path
- exynos-gsc: Do not swap cb/cr for semi planar formats
* tag 'media/v4.11-3' of git://git.kernel.org/pub/scm/linux/kernel/git/mchehab/linux-media:
[media] exynos-gsc: Do not swap cb/cr for semi planar formats
[media] bdisp: Clean up file handle in open() error path
[media] coda/imx-vdoa: platform_driver should not be const
[media] dvb-usb-firmware: don't do DMA on stack
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In the case of semi planar formats cb and cr are in the same plane
in memory, meaning that will be set to 'cb' whatever the format is,
and whatever the (packed) order of those components are.
Suggested-by: Nicolas Dufresne <nicolas.dufresne@collabora.com>
Signed-off-by: Thibault Saunier <thibault.saunier@osg.samsung.com>
Signed-off-by: Javier Martinez Canillas <javier@osg.samsung.com>
Acked-by: Sylwester Nawrocki <s.nawrocki@samsung.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
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The File handle is not yet added in the vdev list.So no need to call
v4l2_fh_del(&ctx->fh)if it fails to create control.
Signed-off-by: Shailendra Verma <shailendra.v@samsung.com>
Reviewed-by: Fabien Dessenne <fabien.dessenne@st.com>
Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
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The device driver platform is actually written to during registration,
for setting the owner field, so platform_driver_register() does not
take a const pointer:
drivers/media/platform/coda/imx-vdoa.c: In function 'vdoa_driver_init':
drivers/media/platform/coda/imx-vdoa.c:333:213: error: passing argument 1 of '__platform_driver_register' discards 'const' qualifier from pointer target type [-Werror=discarded-qualifiers]
module_platform_driver(vdoa_driver);
In file included from drivers/media/platform/coda/imx-vdoa.c:22:0:
include/linux/platform_device.h:199:12: note: expected 'struct platform_driver *' but argument is of type 'const struct platform_driver *'
extern int __platform_driver_register(struct platform_driver *,
^~~~~~~~~~~~~~~~~~~~~~~~~~
drivers/media/platform/coda/imx-vdoa.c: In function 'vdoa_driver_exit':
drivers/media/platform/coda/imx-vdoa.c:333:626: error: passing argument 1 of 'platform_driver_unregister' discards 'const' qualifier from pointer target type [-Werror=discarded-qualifiers]
Remove the modifier again.
Fixes: d2fe28feaebb ("[media] coda/imx-vdoa: constify structs")
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
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Merge fixes from Andrew Morton:
"26 fixes"
* emailed patches from Andrew Morton <akpm@linux-foundation.org>: (26 commits)
userfaultfd: remove wrong comment from userfaultfd_ctx_get()
fat: fix using uninitialized fields of fat_inode/fsinfo_inode
sh: cayman: IDE support fix
kasan: fix races in quarantine_remove_cache()
kasan: resched in quarantine_remove_cache()
mm: do not call mem_cgroup_free() from within mem_cgroup_alloc()
thp: fix another corner case of munlock() vs. THPs
rmap: fix NULL-pointer dereference on THP munlocking
mm/memblock.c: fix memblock_next_valid_pfn()
userfaultfd: selftest: vm: allow to build in vm/ directory
userfaultfd: non-cooperative: userfaultfd_remove revalidate vma in MADV_DONTNEED
userfaultfd: non-cooperative: fix fork fctx->new memleak
mm/cgroup: avoid panic when init with low memory
drivers/md/bcache/util.h: remove duplicate inclusion of blkdev.h
mm/vmstats: add thp_split_pud event for clarity
include/linux/fs.h: fix unsigned enum warning with gcc-4.2
userfaultfd: non-cooperative: release all ctx in dup_userfaultfd_complete
userfaultfd: non-cooperative: robustness check
userfaultfd: non-cooperative: rollback userfaultfd_exit
x86, mm: unify exit paths in gup_pte_range()
...
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Fix typos and add the following to the scripts/spelling.txt:
overide||override
While we are here, fix the doubled "address" in the touched line
Documentation/devicetree/bindings/regulator/ti-abb-regulator.txt.
Also, fix the comment block style in the touched hunks in
drivers/media/dvb-frontends/drx39xyj/drx_driver.h.
Link: http://lkml.kernel.org/r/1481573103-11329-21-git-send-email-yamada.masahiro@socionext.com
Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
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git://git.kernel.org/pub/scm/linux/kernel/git/mchehab/linux-media
Pull media fixes from Mauro Carvalho Chehab:
"Media regression fixes:
- serial_ir: fix a Kernel crash during boot on Kernel 4.11-rc1, due
to an IRQ code called too early
- other IR regression fixes at lirc and at the raw IR decoding
- a deadlock fix at the RC nuvoton driver
- fix another issue with DMA on stack at dw2102 driver
There's an extra patch there that change a driver interface for the
SoC VSP1 driver, with is shared between the DRM and V4L2 driver. The
patch itself is trivial, and was acked by David Arlie"
* tag 'media/v4.11-2' of git://git.kernel.org/pub/scm/linux/kernel/git/mchehab/linux-media:
[media] v4l: vsp1: Adapt vsp1_du_setup_lif() interface to use a structure
[media] dw2102: don't do DMA on stack
[media] rc: protocol is not set on register for raw IR devices
[media] rc: raw decoder for keymap protocol is not loaded on register
[media] rc: nuvoton: fix deadlock in nvt_write_wakeup_codes
[media] lirc: fix dead lock between open and wakeup_filter
[media] serial_ir: ensure we're ready to receive interrupts
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The buffer allocation for the firmware data was changed in
commit 43fab9793c1f ("[media] dvb-usb: don't use stack for firmware load")
but the same applies for the reset value.
Fixes: 43fab9793c1f ("[media] dvb-usb: don't use stack for firmware load")
Cc: stable@vger.kernel.org
Signed-off-by: Stefan Brüns <stefan.bruens@rwth-aachen.de>
Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
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The interface to configure the LIF in the VSP1 requires adapting the
function prototype for any changes. This makes extending the interface
difficult.
Change the function prototype to pass a structure which can be easily
extended.
This changes the means of disabling the pipeline, by now passing a NULL
configuration rather than passing either a 0 width or height.
[Fixed kerneldoc, made vsp1_du_setup_lif() cfg argument const]
Signed-off-by: Kieran Bingham <kieran.bingham+renesas@ideasonboard.com>
Signed-off-by: Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com>
Acked-by: Dave Airlie <airlied@redhat.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
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On Kernel 4.9, WARNINGs about doing DMA on stack are hit at
the dw2102 driver: one in su3000_power_ctrl() and the other in tt_s2_4600_frontend_attach().
Both were due to the use of buffers on the stack as parameters to
dvb_usb_generic_rw() and the resulting attempt to do DMA with them.
The device was non-functional as a result.
So, switch this driver over to use a buffer within the device state
structure, as has been done with other DVB-USB drivers.
Tested with TechnoTrend TT-connect S2-4600.
[mchehab@osg.samsung.com: fixed a warning at su3000_i2c_transfer() that
state var were dereferenced before check 'd']
Signed-off-by: Jonathan McDowell <noodles@earth.li>
Cc: <stable@vger.kernel.org>
Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
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ir_raw_event_register() sets up change_protocol(), and without that set,
rc_setup_rx_device() does not set the protocol for the device on register.
The standard udev rules run ir-keytable, which writes to the protocols
file again, which hides this problem.
Fixes: 7ff2c2b ("[media] rc-main: split setup and unregister functions")
Signed-off-by: Sean Young <sean@mess.org>
Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
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When the protocol is set via the sysfs protocols attribute, the
decoder is loaded. However, when it is not when a device is first
plugged in or registered.
Fixes: acc1c3c ("[media] media: rc: load decoder modules on-demand")
Signed-off-by: Sean Young <sean@mess.org>
Cc: <stable@vger.kernel.org> # v4.5+
Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
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nvt_write_wakeup_codes acquires the same lock as the ISR but doesn't
disable interrupts on the local CPU. This caused the following
deadlock. Fix this by using spin_lock_irqsave.
[ 432.362008] ================================
[ 432.362074] WARNING: inconsistent lock state
[ 432.362144] 4.10.0-rc7-next-20170210 #1 Not tainted
[ 432.362219] --------------------------------
[ 432.362286] inconsistent {HARDIRQ-ON-W} -> {IN-HARDIRQ-W} usage.
[ 432.362379] swapper/0/0 [HC1[1]:SC0[0]:HE0:SE1] takes:
[ 432.362457] (&(&nvt->lock)->rlock){?.+...}, at: [<ffffffffa016b17d>] nvt_cir_isr+0x2d/0x520 [nuvoton_cir]
[ 432.362611] {HARDIRQ-ON-W} state was registered at:
[ 432.362686]
[ 432.362698] [<ffffffff810adb7c>] __lock_acquire+0x5dc/0x1260
[ 432.362812]
[ 432.362817] [<ffffffff810aec29>] lock_acquire+0xe9/0x1d0
[ 432.362927]
[ 432.362934] [<ffffffff81609f63>] _raw_spin_lock+0x33/0x50
[ 432.363045]
[ 432.363051] [<ffffffffa016b822>] nvt_write_wakeup_codes.isra.12+0x22/0xe0 [nuvoton_cir]
[ 432.363193]
[ 432.363199] [<ffffffffa016b9bf>] wakeup_data_store+0xdf/0xf0 [nuvoton_cir]
[ 432.363327]
[ 432.363333] [<ffffffff81484223>] dev_attr_store+0x13/0x20
[ 432.363441]
[ 432.363449] [<ffffffff81232450>] sysfs_kf_write+0x40/0x50
[ 432.363558]
[ 432.363564] [<ffffffff81231640>] kernfs_fop_write+0x150/0x1e0
[ 432.363676]
[ 432.363685] [<ffffffff811b36a3>] __vfs_write+0x23/0x120
[ 432.363791]
[ 432.363798] [<ffffffff811b4d53>] vfs_write+0xc3/0x1e0
[ 432.363902]
[ 432.363909] [<ffffffff811b6124>] SyS_write+0x44/0xa0
[ 432.364012]
[ 432.364021] [<ffffffff81002c47>] do_syscall_64+0x57/0x140
[ 432.364129]
[ 432.364135] [<ffffffff8160a9e4>] return_from_SYSCALL_64+0x0/0x7a
[ 432.364252] irq event stamp: 415118
[ 432.364313] hardirqs last enabled at (415115): [<ffffffff814fd2eb>] cpuidle_enter_state+0x11b/0x370
[ 432.364445] hardirqs last disabled at (415116): [<ffffffff8160b2cb>] common_interrupt+0x8b/0x90
[ 432.364573] softirqs last enabled at (415118): [<ffffffff8106157c>] _local_bh_enable+0x1c/0x50
[ 432.364699] softirqs last disabled at (415117): [<ffffffff810629a3>] irq_enter+0x43/0x60
[ 432.364814]
other info that might help us debug this:
[ 432.364909] Possible unsafe locking scenario:
[ 432.367821] CPU0
[ 432.370645] ----
[ 432.373432] lock(&(&nvt->lock)->rlock);
[ 432.376228] <Interrupt>
[ 432.378982] lock(&(&nvt->lock)->rlock);
[ 432.381757]
*** DEADLOCK ***
[ 432.389888] no locks held by swapper/0/0.
[ 432.392574]
stack backtrace:
[ 432.397774] CPU: 0 PID: 0 Comm: swapper/0 Not tainted 4.10.0-rc7-next-20170210 #1
[ 432.400375] Hardware name: ZOTAC ZBOX-CI321NANO/ZBOX-CI321NANO, BIOS B246P105 06/01/2015
[ 432.403023] Call Trace:
[ 432.405636] <IRQ>
[ 432.408208] dump_stack+0x68/0x93
[ 432.410775] print_usage_bug+0x1dd/0x1f0
[ 432.413334] mark_lock+0x559/0x5c0
[ 432.415871] ? print_shortest_lock_dependencies+0x1a0/0x1a0
[ 432.418431] __lock_acquire+0x6b1/0x1260
[ 432.420941] lock_acquire+0xe9/0x1d0
[ 432.423396] ? nvt_cir_isr+0x2d/0x520 [nuvoton_cir]
[ 432.425844] _raw_spin_lock+0x33/0x50
[ 432.428252] ? nvt_cir_isr+0x2d/0x520 [nuvoton_cir]
[ 432.430670] nvt_cir_isr+0x2d/0x520 [nuvoton_cir]
[ 432.433085] __handle_irq_event_percpu+0x43/0x330
[ 432.435493] handle_irq_event_percpu+0x1e/0x50
[ 432.437884] handle_irq_event+0x34/0x60
[ 432.440236] handle_edge_irq+0x6a/0x150
[ 432.442561] handle_irq+0x15/0x20
[ 432.444854] do_IRQ+0x57/0x110
[ 432.447115] common_interrupt+0x90/0x90
[ 432.449380] RIP: 0010:cpuidle_enter_state+0x120/0x370
[ 432.451653] RSP: 0018:ffffffff81c03dd8 EFLAGS: 00000206 ORIG_RAX: ffffffffffffffcc
[ 432.453994] RAX: ffffffff81c14500 RBX: 0000000000000008 RCX: 00000064aac6f2d2
[ 432.456349] RDX: 0000000000000000 RSI: 0000000000000001 RDI: ffffffff81c14500
[ 432.458704] RBP: ffffffff81c03e18 R08: cccccccccccccccd R09: 0000000000000018
[ 432.461072] R10: 0000000000000000 R11: 0000000000000000 R12: ffff880100a21260
[ 432.463450] R13: ffffffff81c7e6f8 R14: 0000000000000008 R15: ffffffff81c7e6e0
[ 432.465819] </IRQ>
[ 432.468104] ? cpuidle_enter_state+0x11b/0x370
[ 432.470413] cpuidle_enter+0x12/0x20
[ 432.472698] call_cpuidle+0x1e/0x40
[ 432.474967] do_idle+0xe3/0x1c0
[ 432.477172] cpu_startup_entry+0x18/0x20
[ 432.479376] rest_init+0x130/0x140
[ 432.481565] start_kernel+0x3cc/0x3d9
[ 432.483750] x86_64_start_reservations+0x2a/0x2c
[ 432.485980] x86_64_start_kernel+0x178/0x18b
[ 432.488222] start_cpu+0x14/0x14
[ 432.490453] ? start_cpu+0x14/0x14
Fixes: 97c129747af5 "[media] rc: nuvoton-cir: Add support wakeup via sysfs filter callback"
Signed-off-by: Heiner Kallweit <hkallweit1@gmail.com>
Signed-off-by: Sean Young <sean@mess.org>
Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
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The locking in lirc needs improvement, but for now just fix this potential
deadlock.
======================================================
[ INFO: possible circular locking dependency detected ]
4.10.0-rc1+ #1 Not tainted
-------------------------------------------------------
bash/2502 is trying to acquire lock:
(ir_raw_handler_lock){+.+.+.}, at: [<ffffffffc06f6a5e>] ir_raw_encode_scancode+0x3e/0xb0 [rc_core]
but task is already holding lock:
(&dev->lock){+.+.+.}, at: [<ffffffffc06f511f>] store_filter+0x9f/0x240 [rc_core]
which lock already depends on the new lock.
the existing dependency chain (in reverse order) is:
-> #2 (&dev->lock){+.+.+.}:
[<ffffffffa110adad>] lock_acquire+0xfd/0x200
[<ffffffffa1921327>] mutex_lock_nested+0x77/0x6d0
[<ffffffffc06f436a>] rc_open+0x2a/0x80 [rc_core]
[<ffffffffc07114ca>] lirc_dev_fop_open+0xda/0x1e0 [lirc_dev]
[<ffffffffa12975e0>] chrdev_open+0xb0/0x210
[<ffffffffa128eb5a>] do_dentry_open+0x20a/0x2f0
[<ffffffffa128ffcc>] vfs_open+0x4c/0x80
[<ffffffffa12a35ec>] path_openat+0x5bc/0xc00
[<ffffffffa12a5271>] do_filp_open+0x91/0x100
[<ffffffffa12903f0>] do_sys_open+0x130/0x220
[<ffffffffa12904fe>] SyS_open+0x1e/0x20
[<ffffffffa19278c1>] entry_SYSCALL_64_fastpath+0x1f/0xc2
-> #1 (lirc_dev_lock){+.+.+.}:
[<ffffffffa110adad>] lock_acquire+0xfd/0x200
[<ffffffffa1921327>] mutex_lock_nested+0x77/0x6d0
[<ffffffffc0711f47>] lirc_register_driver+0x67/0x59b [lirc_dev]
[<ffffffffc06db7f4>] ir_lirc_register+0x1f4/0x260 [ir_lirc_codec]
[<ffffffffc06f6cac>] ir_raw_handler_register+0x7c/0xb0 [rc_core]
[<ffffffffc0398010>] 0xffffffffc0398010
[<ffffffffa1002192>] do_one_initcall+0x52/0x1b0
[<ffffffffa11ef5c8>] do_init_module+0x5f/0x1fa
[<ffffffffa11566b5>] load_module+0x2675/0x2b00
[<ffffffffa1156dcf>] SYSC_finit_module+0xdf/0x110
[<ffffffffa1156e1e>] SyS_finit_module+0xe/0x10
[<ffffffffa1003f5c>] do_syscall_64+0x6c/0x1f0
[<ffffffffa1927989>] return_from_SYSCALL_64+0x0/0x7a
-> #0 (ir_raw_handler_lock){+.+.+.}:
[<ffffffffa110a7b7>] __lock_acquire+0x10f7/0x1290
[<ffffffffa110adad>] lock_acquire+0xfd/0x200
[<ffffffffa1921327>] mutex_lock_nested+0x77/0x6d0
[<ffffffffc06f6a5e>] ir_raw_encode_scancode+0x3e/0xb0 [rc_core]
[<ffffffffc0b0f492>] loop_set_wakeup_filter+0x62/0xbd [rc_loopback]
[<ffffffffc06f522a>] store_filter+0x1aa/0x240 [rc_core]
[<ffffffffa15e46f8>] dev_attr_store+0x18/0x30
[<ffffffffa13318e5>] sysfs_kf_write+0x45/0x60
[<ffffffffa1330b55>] kernfs_fop_write+0x155/0x1e0
[<ffffffffa1290797>] __vfs_write+0x37/0x160
[<ffffffffa12921f8>] vfs_write+0xc8/0x1e0
[<ffffffffa12936e8>] SyS_write+0x58/0xc0
[<ffffffffa19278c1>] entry_SYSCALL_64_fastpath+0x1f/0xc2
other info that might help us debug this:
Chain exists of:
ir_raw_handler_lock --> lirc_dev_lock --> &dev->lock
Possible unsafe locking scenario:
CPU0 CPU1
---- ----
lock(&dev->lock);
lock(lirc_dev_lock);
lock(&dev->lock);
lock(ir_raw_handler_lock);
*** DEADLOCK ***
4 locks held by bash/2502:
#0: (sb_writers#4){.+.+.+}, at: [<ffffffffa12922c5>] vfs_write+0x195/0x1e0
#1: (&of->mutex){+.+.+.}, at: [<ffffffffa1330b1f>] kernfs_fop_write+0x11f/0x1e0
#2: (s_active#215){.+.+.+}, at: [<ffffffffa1330b28>] kernfs_fop_write+0x128/0x1e0
#3: (&dev->lock){+.+.+.}, at: [<ffffffffc06f511f>] store_filter+0x9f/0x240 [rc_core]
stack backtrace:
CPU: 3 PID: 2502 Comm: bash Not tainted 4.10.0-rc1+ #1
Hardware name: /DG45ID, BIOS IDG4510H.86A.0135.2011.0225.1100 02/25/2011
Call Trace:
dump_stack+0x86/0xc3
print_circular_bug+0x1be/0x210
__lock_acquire+0x10f7/0x1290
lock_acquire+0xfd/0x200
? ir_raw_encode_scancode+0x3e/0xb0 [rc_core]
? ir_raw_encode_scancode+0x3e/0xb0 [rc_core]
mutex_lock_nested+0x77/0x6d0
? ir_raw_encode_scancode+0x3e/0xb0 [rc_core]
? loop_set_wakeup_filter+0x44/0xbd [rc_loopback]
ir_raw_encode_scancode+0x3e/0xb0 [rc_core]
loop_set_wakeup_filter+0x62/0xbd [rc_loopback]
? loop_set_tx_duty_cycle+0x70/0x70 [rc_loopback]
store_filter+0x1aa/0x240 [rc_core]
dev_attr_store+0x18/0x30
sysfs_kf_write+0x45/0x60
kernfs_fop_write+0x155/0x1e0
__vfs_write+0x37/0x160
? rcu_read_lock_sched_held+0x4a/0x80
? rcu_sync_lockdep_assert+0x2f/0x60
? __sb_start_write+0x10c/0x220
? vfs_write+0x195/0x1e0
? security_file_permission+0x3b/0xc0
vfs_write+0xc8/0x1e0
SyS_write+0x58/0xc0
entry_SYSCALL_64_fastpath+0x1f/0xc2
Signed-off-by: Sean Young <sean@mess.org>
Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
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When the interrupt requested with devm_request_irq(), serial_ir.rcdev
is still null so will cause null deference if the irq handler is called
early on.
Also ensure that timeout_timer is setup.
Link: http://lkml.kernel.org/r/CA+55aFxsh2uF8gi5sN_guY3Z+tiLv7LpJYKBw+y8vqLzp+TsnQ@mail.gmail.com
[mchehab@s-opensource.com: moved serial_ir_probe() back to its original place]
Cc: <stable@vger.kernel.org> # 4.10
Signed-off-by: Sean Young <sean@mess.org>
Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
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<linux/sched.h>
Update code that relied on sched.h including various MM types for them.
This will allow us to remove the <linux/mm_types.h> include from <linux/sched.h>.
Acked-by: Linus Torvalds <torvalds@linux-foundation.org>
Cc: Mike Galbraith <efault@gmx.de>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: linux-kernel@vger.kernel.org
Signed-off-by: Ingo Molnar <mingo@kernel.org>
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<linux/sched.h> into <linux/sched/signal.h>
Fix up affected files that include this signal functionality via sched.h.
Acked-by: Linus Torvalds <torvalds@linux-foundation.org>
Cc: Mike Galbraith <efault@gmx.de>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: linux-kernel@vger.kernel.org
Signed-off-by: Ingo Molnar <mingo@kernel.org>
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<uapi/linux/sched/types.h>
We are going to move scheduler ABI details to <uapi/linux/sched/types.h>,
which will be used from a number of .c files.
Create empty placeholder header that maps to <linux/types.h>.
Include the new header in the files that are going to need it.
Acked-by: Linus Torvalds <torvalds@linux-foundation.org>
Cc: Mike Galbraith <efault@gmx.de>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: linux-kernel@vger.kernel.org
Signed-off-by: Ingo Molnar <mingo@kernel.org>
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Now that %z is standartised in C99 there is no reason to support %Z.
Unlike %L it doesn't even make format strings smaller.
Use BUILD_BUG_ON in a couple ATM drivers.
In case anyone didn't notice lib/vsprintf.o is about half of SLUB which
is in my opinion is quite an achievement. Hopefully this patch inspires
someone else to trim vsprintf.c more.
Link: http://lkml.kernel.org/r/20170103230126.GA30170@avx2
Signed-off-by: Alexey Dobriyan <adobriyan@gmail.com>
Cc: Andy Shevchenko <andy.shevchenko@gmail.com>
Cc: Rasmus Villemoes <linux@rasmusvillemoes.dk>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
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Fix typos and add the following to the scripts/spelling.txt:
applys||applies
The "applyes" in drivers/video/fbdev/aty/radeon_monitor.c is a different
pattern but it was fixed in this commit. The "This functions" in the
same line was fixed as well.
Link: http://lkml.kernel.org/r/1481573103-11329-24-git-send-email-yamada.masahiro@socionext.com
Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
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Fix typos and add the following to the scripts/spelling.txt:
configuartion||configuration
While we are here, fix the "ouput" as well in the touched hunk in
drivers/media/dvb-frontends/drx39xyj/drx_driver.h.
Link: http://lkml.kernel.org/r/1481573103-11329-23-git-send-email-yamada.masahiro@socionext.com
Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
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Fix typos and add the following to the scripts/spelling.txt:
neded||needed
While we are here, fix the "overriden", "wont", and "etc" in the same
hunk in drivers/media/usb/tm6000/tm6000-input.c.
Link: http://lkml.kernel.org/r/1481573103-11329-14-git-send-email-yamada.masahiro@socionext.com
Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
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Fix typos and add the following to the scripts/spelling.txt:
aligment||alignment
I did not touch the "N_BYTE_ALIGMENT" macro in
drivers/net/wireless/realtek/rtlwifi/wifi.h to avoid unpredictable
impact.
I fixed "_aligment_handler" in arch/openrisc/kernel/entry.S because
it is surrounded by #if 0 ... #endif. It is surely safe and I
confirmed "_alignment_handler" is correct.
I also fixed the "controler" I found in the same hunk in
arch/openrisc/kernel/head.S.
Link: http://lkml.kernel.org/r/1481573103-11329-8-git-send-email-yamada.masahiro@socionext.com
Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
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Fix typos and add the following to the scripts/spelling.txt:
an user||a user
an userspace||a userspace
I also added "userspace" to the list since it is a common word in Linux.
I found some instances for "an userfaultfd", but I did not add it to the
list. I felt it is endless to find words that start with "user" such as
"userland" etc., so must draw a line somewhere.
Link: http://lkml.kernel.org/r/1481573103-11329-4-git-send-email-yamada.masahiro@socionext.com
Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
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Fix typos and add the following to the scripts/spelling.txt:
swithc||switch
swithced||switched
swithcing||switching
Link: http://lkml.kernel.org/r/1481573103-11329-3-git-send-email-yamada.masahiro@socionext.com
Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
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->fault(), ->page_mkwrite(), and ->pfn_mkwrite() calls do not need to
take a vma and vmf parameter when the vma already resides in vmf.
Remove the vma parameter to simplify things.
[arnd@arndb.de: fix ARM build]
Link: http://lkml.kernel.org/r/20170125223558.1451224-1-arnd@arndb.de
Link: http://lkml.kernel.org/r/148521301778.19116.10840599906674778980.stgit@djiang5-desk3.ch.intel.com
Signed-off-by: Dave Jiang <dave.jiang@intel.com>
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Reviewed-by: Ross Zwisler <ross.zwisler@linux.intel.com>
Cc: Theodore Ts'o <tytso@mit.edu>
Cc: Darrick J. Wong <darrick.wong@oracle.com>
Cc: Matthew Wilcox <mawilcox@microsoft.com>
Cc: Dave Hansen <dave.hansen@intel.com>
Cc: Christoph Hellwig <hch@lst.de>
Cc: Jan Kara <jack@suse.com>
Cc: Dan Williams <dan.j.williams@intel.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
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git://git.kernel.org/pub/scm/linux/kernel/git/mchehab/linux-media
Pull media updates from Mauro Carvalho Chehab:
- new drivers:
- i.MX6 Video Data Order Adapter's (VDOA)
- Toshiba et8ek8 5MP sensor
- STM DELTA multi-format video decoder V4L2 driver
- SPI connected IR LED
- Mediatek IR remote receiver
- ZyDAS ZD1301 DVB USB interface driver
- new RC keymaps
- some very old LIRC drivers got removed from staging
- RC core gained support encoding IR scan codes
- DVB si2168 gained support for DVBv5 statistics
- lirc_sir driver ported to rc-core and promoted from staging
- other bug fixes, board additions and driver improvements
* tag 'media/v4.11-1' of git://git.kernel.org/pub/scm/linux/kernel/git/mchehab/linux-media: (230 commits)
[media] mtk-vcodec: fix build warnings without DEBUG
[media] zd1301: fix building interface driver without demodulator
[media] usbtv: add sharpness control
[media] cxusb: Use a dma capable buffer also for reading
[media] ttpci: address stringop overflow warning
[media] dvb-usb-v2: avoid use-after-free
[media] add Hama Hybrid DVB-T Stick support
[media] et8ek8: Fix compiler / Coccinelle warnings
[media] media: fix semicolon.cocci warnings
[media] media: exynos4-is: add flags to dummy Exynos IS i2c adapter
[media] v4l: of: check for unique lanes in data-lanes and clock-lanes
[media] coda/imx-vdoa: constify structs
[media] st-delta: debug: trace stream/frame information & summary
[media] st-delta: add mjpeg support
[media] st-delta: EOS (End Of Stream) support
[media] st-delta: rpmsg ipc support
[media] st-delta: add memory allocator helper functions
[media] st-delta: STiH4xx multi-format video decoder v4l2 driver
[media] MAINTAINERS: add st-delta driver
[media] ARM: multi_v7_defconfig: enable STMicroelectronics DELTA Support
...
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git://git.kernel.org/pub/scm/linux/kernel/git/mchehab/linux-media
Pull media fix from Mauro Carvalho Chehab:
"A regression fix that makes the Siano driver to work again after the
CONFIG_VMAP_STACK change"
* tag 'media/v4.10-5' of git://git.kernel.org/pub/scm/linux/kernel/git/mchehab/linux-media:
[media] siano: make it work again with CONFIG_VMAP_STACK
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Reported as a Kaffeine bug:
https://bugs.kde.org/show_bug.cgi?id=375811
The USB control messages require DMA to work. We cannot pass
a stack-allocated buffer, as it is not warranted that the
stack would be into a DMA enabled area.
On Kernel 4.9, the default is to not accept DMA on stack anymore
on x86 architecture. On other architectures, this has been a
requirement since Kernel 2.2. So, after this patch, this driver
should likely work fine on all archs.
Tested with USB ID 2040:5510: Hauppauge Windham
Cc: stable@vger.kernel.org
Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
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git://git.kernel.org/pub/scm/linux/kernel/git/mchehab/linux-media
Pull media fixes from Mauro Carvalho Chehab:
"A colorspace regression fix in V4L2 core and a CEC core bug that makes
it discard valid messages"
* tag 'media/v4.10-4' of git://git.kernel.org/pub/scm/linux/kernel/git/mchehab/linux-media:
[media] cec: initiator should be the same as the destination for, poll
[media] videodev2.h: go back to limited range Y'CbCr for SRGB and, ADOBERGB
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Poll messages that are used to allocate a logical address should
use the same initiator as the destination. Instead, it expected that
the initiator was 0xf which is not according to the standard.
This also had consequences for the message checks in cec_transmit_msg_fh
that incorrectly rejected poll messages with the same initiator and
destination.
Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
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After removing DEBUG from mtk_vcodec_util.h, some build warnings are
generated as the following:
.../drivers/media/platform/mtk-vcodec/vdec_vpu_if.c: In function 'vcodec_vpu_send_msg':
.../drivers/media/platform/mtk-vcodec/vdec_vpu_if.c:73:11: warning: unused variable 'msg_id' [-Wunused-variable]
uint32_t msg_id = *(uint32_t *)msg;
^
.../drivers/media/platform/mtk-vcodec/mtk_vcodec_dec.c: In function 'vb2ops_vdec_buf_queue':
.../drivers/media/platform/mtk-vcodec/mtk_vcodec_dec.c:1129:7: warning: unused variable 'log_level' [-Wunused-variable]
int log_level = ret ? 0 : 1;
^
.../drivers/media/platform/mtk-vcodec/venc_vpu_if.c: In function 'vpu_enc_send_msg':
.../drivers/media/platform/mtk-vcodec/venc_vpu_if.c:82:12: warning: unused variable 'msg_id' [-Wunused-variable]
uint32_t msg_id = *(uint32_t *)msg;
^
It is because mtk_vcodec_debug() and mtk_vcodec_err() are defined as empty
macros. Without DEBUG definition, the variable for debugging is not used
anymore. Fixing build warnings by moving the assignment of the
variable to the argument of mtk_vcodec_debug() and mtk_vcodec_err().
Within the patch, build pass with/without DEBUG definition, and functions
still work fine.
Signed-off-by: Minghsiu Tsai <minghsiu.tsai@mediatek.com>
Reviewed-by: Daniel Kurtz <djkurtz@chromium.org>
Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
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If the USB driver is enabled but the demodulator is not, we get a link error:
ERROR: "zd1301_demod_get_dvb_frontend" [drivers/media/usb/dvb-usb-v2/zd1301.ko] undefined!
ERROR: "zd1301_demod_get_i2c_adapter" [drivers/media/usb/dvb-usb-v2/zd1301.ko] undefined!
Such a configuration obviously makes no sense, but we should not fail
the build. This tries to mimic what we have for other drivers by turning
the build failure into a runtime failure.
Alternatively we could use an unconditional 'select' or 'depends on' to enforce
a sane configuration.
Fixes: 47d65372b3b6 ("[media] zd1301_demod: ZyDAS ZD1301 DVB-T demodulator driver")
Fixes: 992b39872b80 ("[media] zd1301: ZyDAS ZD1301 DVB USB interface driver")
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
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|
Signed-off-by: Lubomir Rintel <lkundrak@v3.sk>
Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
|
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Commit 17ce039b4e54 ("[media] cxusb: don't do DMA on stack")
added a kmalloc'ed bounce buffer for writes, but missed to do the same
for reads. As the read only happens after the write is finished, we can
reuse the same buffer.
As dvb_usb_generic_rw handles a read length of 0 by itself, avoid calling
it using the dvb_usb_generic_read wrapper function.
Signed-off-by: Stefan Brüns <stefan.bruens@rwth-aachen.de>
Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
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gcc-7.0.1 warns about old code in ttpci:
In file included from drivers/media/pci/ttpci/av7110.c:63:0:
In function 'irdebi.isra.2',
inlined from 'start_debi_dma' at drivers/media/pci/ttpci/av7110.c:376:3,
inlined from 'gpioirq' at drivers/media/pci/ttpci/av7110.c:659:3:
drivers/media/pci/ttpci/av7110_hw.h:406:3: warning: 'memcpy': specified size between 18446744071562067968 and 18446744073709551615 exceeds maximum object size 9223372036854775807 [-Wstringop-overflow=]
memcpy(av7110->debi_virt, (char *) &res, count);
In function 'irdebi.isra.2',
inlined from 'start_debi_dma' at drivers/media/pci/ttpci/av7110.c:376:3,
inlined from 'gpioirq' at drivers/media/pci/ttpci/av7110.c:668:3:
drivers/media/pci/ttpci/av7110_hw.h:406:3: warning: 'memcpy': specified size between 18446744071562067968 and 18446744073709551615 exceeds maximum object size 9223372036854775807 [-Wstringop-overflow=]
memcpy(av7110->debi_virt, (char *) &res, count);
Apparently, 'count' can be negative here, which will then get turned
into a giant size argument for memcpy. Changing the sizes to 'unsigned
int' instead seems safe as we already check for maximum sizes, and it
also simplifies the code a bit.
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
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|
I ran into a stack frame size warning because of the on-stack copy of
the USB device structure:
drivers/media/usb/dvb-usb-v2/dvb_usb_core.c: In function 'dvb_usbv2_disconnect':
drivers/media/usb/dvb-usb-v2/dvb_usb_core.c:1029:1: error: the frame size of 1104 bytes is larger than 1024 bytes [-Werror=frame-larger-than=]
Copying a device structure like this is wrong for a number of other reasons
too aside from the possible stack overflow. One of them is that the
dev_info() call will print the name of the device later, but AFAICT
we have only copied a pointer to the name earlier and the actual name
has been freed by the time it gets printed.
This removes the on-stack copy of the device and instead copies the
device name using kstrdup(). I'm ignoring the possible failure here
as both printk() and kfree() are able to deal with NULL pointers.
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
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Adding Hama Hybrid DVB-T Stick support. Technically it's the same
device what Terratec Cinergy HT USB XE is.
Signed-off-by: Piotr Oleszczyk <piotr.oleszczyk@gmail.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
|
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Fix a compiler warning due to an unused but assigned variable.
Signed-off-by: Sakari Ailus <sakari.ailus@linux.intel.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
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drivers/media/i2c/et8ek8/et8ek8_driver.c:1112:3-4: Unneeded semicolon
Remove unneeded semicolon.
Generated by: scripts/coccinelle/misc/semicolon.cocci
CC: Pavel Machek <pavel@ucw.cz>
Signed-off-by: Fengguang Wu <fengguang.wu@intel.com>
Acked-by: Pavel Machek <pavel@ucw.cz>
Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
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Add simple 'functionality' member to dummy Exynos IS i2c adapter to make
i2c core happy and get rid of NULL pointer dereference during Exynos4 IS
probe since v4.10-rc1:
Unable to handle kernel NULL pointer dereference at virtual address 00000000
pgd = c0004000
[00000000] *pgd=00000000
Internal error: Oops: 80000005 [#1] PREEMPT SMP ARM
Modules linked in:
CPU: 1 PID: 100 Comm: kworker/1:2 Not tainted 4.10.0-rc6-next-20170131-00054-g39e6e4233de6 #1921
Hardware name: SAMSUNG EXYNOS (Flattened Device Tree)
Workqueue: events deferred_probe_work_func
task: ef2e0000 task.stack: ef2ec000
PC is at 0x0
LR is at i2c_register_adapter+0x98/0x5cc
...
[<c05040bc>] (i2c_register_adapter) from [<c05379d4>] (fimc_is_i2c_probe+0x84/0xe4)
[<c05379d4>] (fimc_is_i2c_probe) from [<c041b5c8>] (platform_drv_probe+0x50/0xb0)
[<c041b5c8>] (platform_drv_probe) from [<c0419f48>] (driver_probe_device+0x234/0x2dc)
[<c0419f48>] (driver_probe_device) from [<c04184e0>] (bus_for_each_drv+0x44/0x8c)
[<c04184e0>] (bus_for_each_drv) from [<c0419c8c>] (__device_attach+0x9c/0x100)
[<c0419c8c>] (__device_attach) from [<c0419374>] (bus_probe_device+0x84/0x8c)
[<c0419374>] (bus_probe_device) from [<c04178d4>] (device_add+0x380/0x528)
[<c04178d4>] (device_add) from [<c05aceb4>] (of_platform_device_create_pdata+0x70/0xa4)
[<c05aceb4>] (of_platform_device_create_pdata) from [<c05acfd4>] (of_platform_bus_create+0xec/0x320)
[<c05acfd4>] (of_platform_bus_create) from [<c05ad264>] (of_platform_populate+0x5c/0xac)
[<c05ad264>] (of_platform_populate) from [<c0533420>] (fimc_is_probe+0x1c0/0x4cc)
[<c0533420>] (fimc_is_probe) from [<c041b5c8>] (platform_drv_probe+0x50/0xb0)
[<c041b5c8>] (platform_drv_probe) from [<c0419f48>] (driver_probe_device+0x234/0x2dc)
[<c0419f48>] (driver_probe_device) from [<c04184e0>] (bus_for_each_drv+0x44/0x8c)
[<c04184e0>] (bus_for_each_drv) from [<c0419c8c>] (__device_attach+0x9c/0x100)
[<c0419c8c>] (__device_attach) from [<c0419374>] (bus_probe_device+0x84/0x8c)
[<c0419374>] (bus_probe_device) from [<c04197a8>] (deferred_probe_work_func+0x60/0x8c)
[<c04197a8>] (deferred_probe_work_func) from [<c01329a4>] (process_one_work+0x120/0x31c)
[<c01329a4>] (process_one_work) from [<c0132bc8>] (process_scheduled_works+0x28/0x38)
[<c0132bc8>] (process_scheduled_works) from [<c0132ddc>] (worker_thread+0x204/0x4ac)
[<c0132ddc>] (worker_thread) from [<c01381b8>] (kthread+0xfc/0x134)
[<c01381b8>] (kthread) from [<c01078b8>] (ret_from_fork+0x14/0x3c)
Signed-off-by: Marek Szyprowski <m.szyprowski@samsung.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
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All lanes in data-lanes and clock-lanes properties should be unique. Add
a check for this in v4l2_of_parse_csi_bus() and print a warning if
duplicated lanes are found.
Signed-off-by: Niklas Söderlund <niklas.soderlund+renesas@ragnatech.se>
Acked-by: Sakari Ailus <sakari.ailus@linux.intel.com>
Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
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As warned by checkpatch:
WARNING: struct of_device_id should normally be const
#318: FILE: drivers/media/platform/coda/imx-vdoa.c:318:
+static struct of_device_id vdoa_dt_ids[] = {
So, constify structs.
Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
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Adds some trace points showing input compressed stream or
output decoded frame information.
Adds an unconditional trace point when streaming starts showing
the compressed stream and the decoded frame information.
Adds an unconditional trace point at instance closure summarizing
into a single line the decoding process (stream information, decoded
and output frames number, potential errors observed).
Acked-by: Peter Griffin <peter.griffin@linaro.org>
Signed-off-by: Hugues Fruchet <hugues.fruchet@st.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
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Adds support of DELTA MJPEG video decoder back-end,
implemented by calling JPEG_DECODER_HW0 firmware
using RPMSG IPC communication layer.
Acked-by: Peter Griffin <peter.griffin@linaro.org>
Signed-off-by: Hugues Fruchet <hugues.fruchet@st.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
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EOS (End Of Stream) support allows user to get
all the potential decoded frames remaining in decoder
pipeline after having reached the end of video bitstream.
To do so, user calls VIDIOC_DECODER_CMD(V4L2_DEC_CMD_STOP)
which will drain the decoder and get the drained frames
that are then returned to user.
User is informed of EOS completion in two ways:
- dequeue of an empty frame flagged to V4L2_BUF_FLAG_LAST
- reception of a V4L2_EVENT_EOS event.
If, unfortunately, no buffer is available on CAPTURE queue
to return the empty frame, EOS is delayed till user queue
one CAPTURE buffer.
Acked-by: Peter Griffin <peter.griffin@linaro.org>
Signed-off-by: Hugues Fruchet <hugues.fruchet@st.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
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IPC (Inter Process Communication) support for communication with
DELTA coprocessor firmware using rpmsg kernel framework.
Based on 4 services open/set_stream/decode/close and their associated
rpmsg messages.
The messages structures are duplicated on both host and firmware
side and are packed (use only of 32 bits size fields in messages
structures to ensure packing).
Each service is synchronous; service returns only when firmware
acknowledges the associated command message.
Due to significant parameters size exchanged from host to copro,
parameters are not inserted in rpmsg messages. Instead, parameters are
stored in physical memory shared between host and coprocessor.
Memory is non-cacheable, so no special operation is required
to ensure memory coherency on host and on coprocessor side.
Multi-instance support and re-entrance are ensured using host_hdl and
copro_hdl in message header exchanged between both host and coprocessor.
This avoids to manage tables on both sides to get back the running context
of each instance.
Acked-by: Peter Griffin <peter.griffin@linaro.org>
Signed-off-by: Hugues Fruchet <hugues.fruchet@st.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
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Helper functions used by decoder back-ends to allocate
physically contiguous memory required by hardware video
decoder.
Acked-by: Peter Griffin <peter.griffin@linaro.org>
Signed-off-by: Hugues Fruchet <hugues.fruchet@st.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
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This V4L2 driver enables DELTA multi-format video decoder
of STMicroelectronics STiH4xx SoC series.
Acked-by: Peter Griffin <peter.griffin@linaro.org>
Signed-off-by: Hugues Fruchet <hugues.fruchet@st.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
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Internal Master 3 Bus can send and receive only 4 bytes per time.
Signed-off-by: Oleh Kravchenko <oleg@kaa.org.ua>
Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
|
