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commit 933c1320847f5ed6b61a7d10f0a948aa98ccd7b0 upstream.
After removal of clock_start() from before soc_camera_init_i2c() in
soc_camera_probe() by commit 9aea470b399d ("[media] soc-camera: switch
I2C subdevice drivers to use v4l2-clk") introduced in v3.11, the ov6650
driver could no longer probe the sensor successfully because its clock
was no longer turned on in advance. The issue was initially worked
around by adding that missing clock_start() equivalent to OMAP1 camera
interface driver - the only user of this sensor - but a propoer fix
should be rather implemented in the sensor driver code itself.
Fix the issue by inserting a delay between the clock is turned on and
the sensor I2C registers are read for the first time.
Tested on Amstrad Delta with now out of tree but still locally
maintained omap1_camera host driver.
Fixes: 9aea470b399d ("[media] soc-camera: switch I2C subdevice drivers to use v4l2-clk")
Signed-off-by: Janusz Krzysztofik <jmkrzyszt@gmail.com>
Cc: stable@vger.kernel.org
Signed-off-by: Sakari Ailus <sakari.ailus@linux.intel.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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commit 61da76beef1e4f0b6ba7be4f8d0cf0dac7ce1f55 upstream.
The following commits:
commit f6dd927f34d6 ("[media] media: ov7670: calculate framerate properly for ov7675")
commit 04ee6d92047e ("[media] media: ov7670: add possibility to bypass pll for ov7675")
introduced the ability to bypass PLL multiplier and use input clock (xvclk)
as pixel clock output frequency for ov7675 sensor.
PLL is bypassed using register DBLV[7:6], according to ov7670 and ov7675
sensor manuals. Macros used to set DBLV register seem wrong in the
driver, as their values do not match what reported in the datasheet.
Fix by changing DBLV_* macros to use bits [7:6] and set bits [3:0] to
default 0x0a reserved value (according to datasheets).
While at there, remove a write to DBLV register in
"ov7675_set_framerate()" that over-writes the previous one to the same
register that takes "info->pll_bypass" flag into account instead of setting PLL
multiplier to 4x unconditionally.
And, while at there, since "info->pll_bypass" is only used in
set/get_framerate() functions used by ov7675 only, it is not necessary
to check for the device id at probe time to make sure that when using
ov7670 "info->pll_bypass" is set to false.
Fixes: f6dd927f34d6 ("[media] media: ov7670: calculate framerate properly for ov7675")
Signed-off-by: Jacopo Mondi <jacopo+renesas@jmondi.org>
Signed-off-by: Sakari Ailus <sakari.ailus@linux.intel.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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[ Upstream commit 49710c32cd9d6626a77c9f5f978a5f58cb536b35 ]
Previously when doing format enumeration, it was returning all
formats supported by driver, even if they're not supported by hw.
Add missing check for fmt_ver_flag, so it'll be fixed and only those
supported by hw will be returned. Similar thing is already done
in s5p_jpeg_find_format.
It was found by using v4l2-compliance tool and checking result
of VIDIOC_ENUM_FMT/FRAMESIZES/FRAMEINTERVALS test
and using v4l2-ctl to get list of all supported formats.
Tested on s5pv210-galaxys (Samsung i9000 phone).
Fixes: bb677f3ac434 ("[media] Exynos4 JPEG codec v4l2 driver")
Signed-off-by: Pawe? Chmiel <pawel.mikolaj.chmiel@gmail.com>
Reviewed-by: Jacek Anaszewski <jacek.anaszewski@gmail.com>
[hverkuil-cisco@xs4all.nl: fix a few alignment issues]
Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
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[ Upstream commit c5ff0edb8e2270a75935c73217fb0de1abd2d910 ]
There is a block of code in rvin_group_link_notify() that prevents
enabling a link to a VIN node if any entity in the media graph is
in use. This prevents enabling a VIN link even if there is an in-use
entity somewhere in the graph that is independent of the link's
pipeline.
For example, the code block will prevent enabling a link from
the first rcar-csi2 receiver to a VIN node even if there is an
enabled link somewhere far upstream on the second independent
rcar-csi2 receiver pipeline.
If this code block is meant to prevent modifying a link if any entity
in the graph is actively involved in streaming (because modifying
the CHSEL register fields can disrupt any/all running streams), then
the entities stream counts should be checked rather than the use counts.
(There is already such a check in __media_entity_setup_link() that verifies
the stream_count of the link's source and sink entities are both zero,
but that is insufficient, since there should be no running streams in
the entire graph).
Modify the code block to check the entity stream_count instead of the
use_count (and elaborate on the comment). VIN node links can now be
enabled even if there are other independent in-use entities that are
not streaming.
Fixes: c0cc5aef31 ("media: rcar-vin: add link notify for Gen3")
Signed-off-by: Steve Longerbeam <slongerbeam@gmail.com>
Reviewed-by: Niklas Söderlund <niklas.soderlund+renesas@ragnatech.se>
Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl>
Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
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[ Upstream commit 29856308137de1c21eda89411695f4fc6e9780ff ]
This driver sets initial frame width and height to 0x0, which is invalid.
So set it to selection rectangle bounds instead.
This is detected by v4l2-compliance detected.
Cc: Enrico Scholz <enrico.scholz@sigma-chemnitz.de>
Cc: Michael Grzeschik <m.grzeschik@pengutronix.de>
Cc: Marco Felsch <m.felsch@pengutronix.de>
Signed-off-by: Akinobu Mita <akinobu.mita@gmail.com>
Signed-off-by: Sakari Ailus <sakari.ailus@linux.intel.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
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[ Upstream commit 1b275e4e8b70dbff9850874b30831c1bd8d3c504 ]
Fix the assigned type of mem2mem buffer handling API.
Namely, these functions:
v4l2_m2m_next_buf
v4l2_m2m_last_buf
v4l2_m2m_buf_remove
v4l2_m2m_next_src_buf
v4l2_m2m_next_dst_buf
v4l2_m2m_last_src_buf
v4l2_m2m_last_dst_buf
v4l2_m2m_src_buf_remove
v4l2_m2m_dst_buf_remove
return a struct vb2_v4l2_buffer, and not a struct vb2_buffer.
Fixing this is necessary to fix the mem2mem buffer handling API,
changing the return to the correct struct vb2_v4l2_buffer instead
of a void pointer.
Signed-off-by: Ezequiel Garcia <ezequiel@collabora.com>
Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl>
Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
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[ Upstream commit 8d20dcefe471763f23ad538369ec65b51993ffff ]
Fix the assigned type of mem2mem buffer handling API.
Namely, these functions:
v4l2_m2m_next_buf
v4l2_m2m_last_buf
v4l2_m2m_buf_remove
v4l2_m2m_next_src_buf
v4l2_m2m_next_dst_buf
v4l2_m2m_last_src_buf
v4l2_m2m_last_dst_buf
v4l2_m2m_src_buf_remove
v4l2_m2m_dst_buf_remove
return a struct vb2_v4l2_buffer, and not a struct vb2_buffer.
Fixing this is necessary to fix the mem2mem buffer handling API,
changing the return to the correct struct vb2_v4l2_buffer instead
of a void pointer.
Signed-off-by: Ezequiel Garcia <ezequiel@collabora.com>
Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl>
Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
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[ Upstream commit 30fa627b32230737bc3f678067e2adfecf956987 ]
Fix the assigned type of mem2mem buffer handling API.
Namely, these functions:
v4l2_m2m_next_buf
v4l2_m2m_last_buf
v4l2_m2m_buf_remove
v4l2_m2m_next_src_buf
v4l2_m2m_next_dst_buf
v4l2_m2m_last_src_buf
v4l2_m2m_last_dst_buf
v4l2_m2m_src_buf_remove
v4l2_m2m_dst_buf_remove
return a struct vb2_v4l2_buffer, and not a struct vb2_buffer.
Fixing this is necessary to fix the mem2mem buffer handling API,
changing the return to the correct struct vb2_v4l2_buffer instead
of a void pointer.
Signed-off-by: Ezequiel Garcia <ezequiel@collabora.com>
Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl>
Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
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[ Upstream commit da2d3a4e4adabc6ccfb100bc9abd58ee9cd6c4b7 ]
Fix the assigned type of mem2mem buffer handling API.
Namely, these functions:
v4l2_m2m_next_buf
v4l2_m2m_last_buf
v4l2_m2m_buf_remove
v4l2_m2m_next_src_buf
v4l2_m2m_next_dst_buf
v4l2_m2m_last_src_buf
v4l2_m2m_last_dst_buf
v4l2_m2m_src_buf_remove
v4l2_m2m_dst_buf_remove
return a struct vb2_v4l2_buffer, and not a struct vb2_buffer.
Fixing this is necessary to fix the mem2mem buffer handling API,
changing the return to the correct struct vb2_v4l2_buffer instead
of a void pointer.
Signed-off-by: Ezequiel Garcia <ezequiel@collabora.com>
Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl>
Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
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[ Upstream commit 4a88f89885c7cf65c62793f385261a6e3315178a ]
Fix the assigned type of mem2mem buffer handling API.
Namely, these functions:
v4l2_m2m_next_buf
v4l2_m2m_last_buf
v4l2_m2m_buf_remove
v4l2_m2m_next_src_buf
v4l2_m2m_next_dst_buf
v4l2_m2m_last_src_buf
v4l2_m2m_last_dst_buf
v4l2_m2m_src_buf_remove
v4l2_m2m_dst_buf_remove
return a struct vb2_v4l2_buffer, and not a struct vb2_buffer.
Fixing this is necessary to fix the mem2mem buffer handling API,
changing the return to the correct struct vb2_v4l2_buffer instead
of a void pointer.
Signed-off-by: Ezequiel Garcia <ezequiel@collabora.com>
Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl>
Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
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[ Upstream commit 43c145195c7fc3025ee7ecfc67112ac1c82af7c2 ]
Fix the assigned type of mem2mem buffer handling API.
Namely, these functions:
v4l2_m2m_next_buf
v4l2_m2m_last_buf
v4l2_m2m_buf_remove
v4l2_m2m_next_src_buf
v4l2_m2m_next_dst_buf
v4l2_m2m_last_src_buf
v4l2_m2m_last_dst_buf
v4l2_m2m_src_buf_remove
v4l2_m2m_dst_buf_remove
return a struct vb2_v4l2_buffer, and not a struct vb2_buffer.
Fixing this is necessary to fix the mem2mem buffer handling API,
changing the return to the correct struct vb2_v4l2_buffer instead
of a void pointer.
Signed-off-by: Ezequiel Garcia <ezequiel@collabora.com>
Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl>
Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
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[ Upstream commit 12aceee1f412c3ddc7750155fec06c906f14ab51 ]
The runtime PM of this device is enabled after v4l2_ctrl_handler_setup(),
and this makes this device's runtime PM usage count a negative value.
The ov7740_set_ctrl() tries to do something only if the device's runtime
PM usage counter is nonzero.
ov7740_set_ctrl()
{
if (!pm_runtime_get_if_in_use(&client->dev))
return 0;
<do something>;
pm_runtime_put(&client->dev);
return ret;
}
However, the ov7740_set_ctrl() is called by v4l2_ctrl_handler_setup()
while the runtime PM of this device is not yet enabled. In this case,
the pm_runtime_get_if_in_use() returns -EINVAL (!= 0).
Therefore we can't bail out of this function and the usage count is
decreased by pm_runtime_put() without increment.
This fixes this problem by enabling the runtime PM of this device before
v4l2_ctrl_handler_setup() so that the ov7740_set_ctrl() is always called
when the runtime PM is enabled.
Cc: Wenyou Yang <wenyou.yang@microchip.com>
Signed-off-by: Akinobu Mita <akinobu.mita@gmail.com>
Tested-by: Eugen Hristev <eugen.hristev@microchip.com>
Signed-off-by: Sakari Ailus <sakari.ailus@linux.intel.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
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commit f45f3f753b0a3d739acda8e311b4f744d82dc52a upstream.
Control events can leak kernel memory since they do not fully zero the
event. The same code is present in both v4l2-ctrls.c and uvc_ctrl.c, so
fix both.
It appears that all other event code is properly zeroing the structure,
it's these two places.
Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl>
Reported-by: syzbot+4f021cf3697781dbd9fb@syzkaller.appspotmail.com
Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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commit adc589d2a20808fb99d46a78175cd023f2040338 upstream.
Add a linear pipeline logic for the stream control. It's created by
walking backwards on the entity graph. When the stream starts it will
simply loop through the pipeline calling the respective process_frame
function of each entity.
Fixes: f2fe89061d797 ("vimc: Virtual Media Controller core, capture
and sensor")
Cc: stable@vger.kernel.org # for v4.20
Signed-off-by: Lucas A. M. Magalhães <lucmaga@gmail.com>
Acked-by: Helen Koike <helen.koike@collabora.com>
Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl>
[hverkuil-cisco@xs4all.nl: fixed small space-after-tab issue in the patch]
Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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commit 9dd0627d8d62a7ddb001a75f63942d92b5336561 upstream.
The UVC video driver converts the timestamp from hardware specific unit
to one known by the kernel at the time when the buffer is dequeued. This
is fine in general, but the streamoff operation consists of the
following steps (among other things):
1. uvc_video_clock_cleanup --- the hardware clock sample array is
released and the pointer to the array is set to NULL,
2. buffers in active state are returned to the user and
3. buf_finish callback is called on buffers that are prepared.
buf_finish includes calling uvc_video_clock_update that accesses the
hardware clock sample array.
The above is serialised by a queue specific mutex. Address the problem
by skipping the clock conversion if the hardware clock sample array is
already released.
Fixes: 9c0863b1cc48 ("[media] vb2: call buf_finish from __queue_cancel")
Reported-by: Chiranjeevi Rapolu <chiranjeevi.rapolu@intel.com>
Tested-by: Chiranjeevi Rapolu <chiranjeevi.rapolu@intel.com>
Signed-off-by: Sakari Ailus <sakari.ailus@linux.intel.com>
Cc: stable@vger.kernel.org
Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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commit d31b282e2c0de9c7fb113516820340251f03a625 upstream.
max_register is currently set to 0x1000. This is beyond the mapped
address range of the hardware, so attempts to dump the regmap from
debugfs would trigger a kernel exception.
Furthermore, the useful registers only occupy a small section at the
beginning of the full range. Change the value to 0x9c, the last known
register on the V3s and H3.
On the A31, the register range is extended to support additional
capture channels. Since this is not yet supported, ignore it for now.
Fixes: 5cc7522d8965 ("media: sun6i: Add support for Allwinner CSI V3s")
Cc: <stable@vger.kernel.org>
Signed-off-by: Chen-Yu Tsai <wens@csie.org>
Acked-by: Maxime Ripard <maxime.ripard@bootlin.com>
Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl>
Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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commit 1b4fd9de6ec7f3722c2b3e08cc5ad171c11f93be upstream.
A typo in code cleanup commit db9c1007bc07 ("media: lgdt330x: do
some cleanups at status logic") broke the FE_HAS_LOCK reporting
for 3303 chips by inadvertently modifying the register mask.
The broken lock status is critial as it prevents video capture
cards from reporting signal strength, scanning for channels,
and capturing video.
Fix regression by reverting mask change.
Cc: stable@vger.kernel.org # Kernel 4.17+
Fixes: db9c1007bc07 ("media: lgdt330x: do some cleanups at status logic")
Signed-off-by: Nick French <naf@ou.edu>
Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Tested-by: Adam Stylinski <kungfujesus06@gmail.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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commit 46c039d06b6ecabb94bd16c3a999b28dc83b79ce upstream.
Without this, we get failures like this when the kernel attempts to
initialize a cx231xx device:
[16046.153653] cx231xx 3-1.2:1.1: New device Hauppauge Hauppauge Device @ 480 Mbps (2040:c200) with 6 interfaces
[16046.153900] cx231xx 3-1.2:1.1: can't change interface 3 alt no. to 3: Max. Pkt size = 0
[16046.153907] cx231xx 3-1.2:1.1: Identified as Hauppauge USB Live 2 (card=9)
[16046.154350] i2c i2c-11: Added multiplexed i2c bus 13
[16046.154379] i2c i2c-11: Added multiplexed i2c bus 14
[16046.267194] cx25840 10-0044: cx23102 A/V decoder found @ 0x88 (cx231xx #0-0)
[16048.424551] cx25840 10-0044: loaded v4l-cx231xx-avcore-01.fw firmware (16382 bytes)
[16048.463224] cx231xx 3-1.2:1.1: v4l2 driver version 0.0.3
[16048.567878] cx231xx 3-1.2:1.1: Registered video device video2 [v4l2]
[16048.568001] cx231xx 3-1.2:1.1: Registered VBI device vbi0
[16048.568419] cx231xx 3-1.2:1.1: audio EndPoint Addr 0x83, Alternate settings: 3
[16048.568425] cx231xx 3-1.2:1.1: video EndPoint Addr 0x84, Alternate settings: 5
[16048.568431] cx231xx 3-1.2:1.1: VBI EndPoint Addr 0x85, Alternate settings: 2
[16048.568436] cx231xx 3-1.2:1.1: sliced CC EndPoint Addr 0x86, Alternate settings: 2
[16048.568448] usb 3-1.2: couldn't get decoder output pad for V4L I/O
[16048.568453] cx231xx 3-1.2:1.1: V4L2 device vbi0 deregistered
[16048.568579] cx231xx 3-1.2:1.1: V4L2 device video2 deregistered
[16048.569001] cx231xx: probe of 3-1.2:1.1 failed with error -22
Likely a regession since Commit 9d6d20e652c0
("media: v4l2-mc: switch it to use the new approach to setup pipelines")
(v4.19-rc1-100-g9d6d20e652c0), which introduced the use of
PAD_SIGNAL_DV within v4l2_mc_create_media_graph().
This also modifies cx25840 to remove the VBI pad, matching the action
taken in Commit 092a37875a22 ("media: v4l2: remove VBI output pad").
Fixes: 9d6d20e652c0 ("media: v4l2-mc: switch it to use the new approach to setup pipelines")
Cc: stable@vger.kernel.org
Signed-off-by: Cody P Schafer <dev@codyps.com>
Tested-by: Hans Verkuil <hverkuil-cisco@xs4all.nl>
Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl>
Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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commit 1d4c41f3d887bcd66e82cb2fda124533dad8808a upstream.
According to the ov5640 specification (2.7 power up sequence), host can
access the sensor's registers 20ms after reset. Trying to access them
before leads to undefined behavior and result in sporadic initialization
errors.
Signed-off-by: Loic Poulain <loic.poulain@linaro.org>
Signed-off-by: Sakari Ailus <sakari.ailus@linux.intel.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
Cc: Adam Ford <aford173@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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commit 05f0edadcc5fccdfc0676825b3e70e75dc0a8a84 upstream.
When an rc device is created, we do not know what key codes it will
support, since a new keymap might be loaded at some later point. So,
we set all keybit in the input device.
The uevent for the input device includes all the key codes, of which
there are now 768. This overflows the size of the uevent
(UEVENT_BUFFER_SIZE) and no event is generated.
Revert for now until we figure out a different solution.
This reverts commit fec225a04330d0f222d24feb5bea045526031675.
Cc: <stable@vger.kernel.org> # 4.20+
Reported-by: Christian Holpert <christian@holpert.de>
Signed-off-by: Sean Young <sean@mess.org>
Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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commit 47bb117911b051bbc90764a8bff96543cbd2005f upstream.
When initially testing the Camera Terminal Descriptor wTerminalType
field (buffer[4]), no mask is used. Later in the function, the MSB is
overloaded to store the descriptor subtype, and so a mask of 0x7fff
is used to check the type.
If a descriptor is specially crafted to set this overloaded bit in the
original wTerminalType field, the initial type check will fail (falling
through, without adjusting the buffer size), but the later type checks
will pass, assuming the buffer has been made suitably large, causing an
overflow.
Avoid this problem by checking for the MSB in the wTerminalType field.
If the bit is set, assume the descriptor is bad, and abort parsing it.
Originally reported here:
https://groups.google.com/forum/#!topic/syzkaller/Ot1fOE6v1d8
A similar (non-compiling) patch was provided at that time.
Reported-by: syzbot <syzkaller@googlegroups.com>
Signed-off-by: Alistair Strachan <astrachan@google.com>
Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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cancel_delayed_work_sync() was called for any queue, but it should only
be called for the queue that is associated with the currently running job.
Otherwise, if two filehandles are streaming at the same time, then closing the
first will cancel the work which might still be running for a job from the
second filehandle. As a result the second filehandle will never be able to
finish the job and an attempt to stop streaming on that second filehandle will
stall.
Fixes: 52117be68b82 ("media: vim2m: use cancel_delayed_work_sync instead of flush_schedule_work")
Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl>
Cc: <stable@vger.kernel.org> # for v4.20 and up
Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
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The num_planes field in struct v4l2_pix_format_mplane is used in a loop
before validating it. As the use is printing a debug message in this case,
just cap the value to the maximum allowed.
Signed-off-by: Sakari Ailus <sakari.ailus@linux.intel.com>
Cc: stable@vger.kernel.org
Reviewed-by: Thierry Reding <treding@nvidia.com>
Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl>
Cc: <stable@vger.kernel.org> # for v4.12 and up
Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
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The for loop to reset the memory of the plane reserved fields runs over
num_planes provided by the user without validating it. Ensure num_planes
is no more than VIDEO_MAX_PLANES before the loop.
Fixes: 4e1e0eb0e074 ("media: v4l2-ioctl: Zero v4l2_plane_pix_format reserved fields")
Signed-off-by: Sakari Ailus <sakari.ailus@linux.intel.com>
Reviewed-by: Thierry Reding <treding@nvidia.com>
Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl>
Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
|
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Currently the IOCTL code clears everything after the per-plane
bytesperline field in struct v4l2_format. The intent was to only clear
the per-plane reserved fields since there is data in struct v4l2_format
after the per-plane format data that userspace may have filled in.
Fixes: 4e1e0eb0e074 ("media: v4l2-ioctl: Zero v4l2_plane_pix_format reserved fields")
Signed-off-by: Thierry Reding <treding@nvidia.com>
Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl>
[hverkuil-cisco@xs4all.nl: fix checkpatch alignment warning]
Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
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We already need to zero out memory for dma_alloc_coherent(), as such
using dma_zalloc_coherent() is superflous. Phase it out.
This change was generated with the following Coccinelle SmPL patch:
@ replace_dma_zalloc_coherent @
expression dev, size, data, handle, flags;
@@
-dma_zalloc_coherent(dev, size, handle, flags)
+dma_alloc_coherent(dev, size, handle, flags)
Suggested-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Luis Chamberlain <mcgrof@kernel.org>
[hch: re-ran the script on the latest tree]
Signed-off-by: Christoph Hellwig <hch@lst.de>
|
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Nobody has actually used the type (VERIFY_READ vs VERIFY_WRITE) argument
of the user address range verification function since we got rid of the
old racy i386-only code to walk page tables by hand.
It existed because the original 80386 would not honor the write protect
bit when in kernel mode, so you had to do COW by hand before doing any
user access. But we haven't supported that in a long time, and these
days the 'type' argument is a purely historical artifact.
A discussion about extending 'user_access_begin()' to do the range
checking resulted this patch, because there is no way we're going to
move the old VERIFY_xyz interface to that model. And it's best done at
the end of the merge window when I've done most of my merges, so let's
just get this done once and for all.
This patch was mostly done with a sed-script, with manual fix-ups for
the cases that weren't of the trivial 'access_ok(VERIFY_xyz' form.
There were a couple of notable cases:
- csky still had the old "verify_area()" name as an alias.
- the iter_iov code had magical hardcoded knowledge of the actual
values of VERIFY_{READ,WRITE} (not that they mattered, since nothing
really used it)
- microblaze used the type argument for a debug printout
but other than those oddities this should be a total no-op patch.
I tried to fix up all architectures, did fairly extensive grepping for
access_ok() uses, and the changes are trivial, but I may have missed
something. Any missed conversion should be trivially fixable, though.
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
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totalram_pages and totalhigh_pages are made static inline function.
Main motivation was that managed_page_count_lock handling was complicating
things. It was discussed in length here,
https://lore.kernel.org/patchwork/patch/995739/#1181785 So it seemes
better to remove the lock and convert variables to atomic, with preventing
poteintial store-to-read tearing as a bonus.
[akpm@linux-foundation.org: coding style fixes]
Link: http://lkml.kernel.org/r/1542090790-21750-4-git-send-email-arunks@codeaurora.org
Signed-off-by: Arun KS <arunks@codeaurora.org>
Suggested-by: Michal Hocko <mhocko@suse.com>
Suggested-by: Vlastimil Babka <vbabka@suse.cz>
Reviewed-by: Konstantin Khlebnikov <khlebnikov@yandex-team.ru>
Reviewed-by: Pavel Tatashin <pasha.tatashin@soleen.com>
Acked-by: Michal Hocko <mhocko@suse.com>
Acked-by: Vlastimil Babka <vbabka@suse.cz>
Cc: David Hildenbrand <david@redhat.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
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Pull networking updates from David Miller:
1) New ipset extensions for matching on destination MAC addresses, from
Stefano Brivio.
2) Add ipv4 ttl and tos, plus ipv6 flow label and hop limit offloads to
nfp driver. From Stefano Brivio.
3) Implement GRO for plain UDP sockets, from Paolo Abeni.
4) Lots of work from Michał Mirosław to eliminate the VLAN_TAG_PRESENT
bit so that we could support the entire vlan_tci value.
5) Rework the IPSEC policy lookups to better optimize more usecases,
from Florian Westphal.
6) Infrastructure changes eliminating direct manipulation of SKB lists
wherever possible, and to always use the appropriate SKB list
helpers. This work is still ongoing...
7) Lots of PHY driver and state machine improvements and
simplifications, from Heiner Kallweit.
8) Various TSO deferral refinements, from Eric Dumazet.
9) Add ntuple filter support to aquantia driver, from Dmitry Bogdanov.
10) Batch dropping of XDP packets in tuntap, from Jason Wang.
11) Lots of cleanups and improvements to the r8169 driver from Heiner
Kallweit, including support for ->xmit_more. This driver has been
getting some much needed love since he started working on it.
12) Lots of new forwarding selftests from Petr Machata.
13) Enable VXLAN learning in mlxsw driver, from Ido Schimmel.
14) Packed ring support for virtio, from Tiwei Bie.
15) Add new Aquantia AQtion USB driver, from Dmitry Bezrukov.
16) Add XDP support to dpaa2-eth driver, from Ioana Ciocoi Radulescu.
17) Implement coalescing on TCP backlog queue, from Eric Dumazet.
18) Implement carrier change in tun driver, from Nicolas Dichtel.
19) Support msg_zerocopy in UDP, from Willem de Bruijn.
20) Significantly improve garbage collection of neighbor objects when
the table has many PERMANENT entries, from David Ahern.
21) Remove egdev usage from nfp and mlx5, and remove the facility
completely from the tree as it no longer has any users. From Oz
Shlomo and others.
22) Add a NETDEV_PRE_CHANGEADDR so that drivers can veto the change and
therefore abort the operation before the commit phase (which is the
NETDEV_CHANGEADDR event). From Petr Machata.
23) Add indirect call wrappers to avoid retpoline overhead, and use them
in the GRO code paths. From Paolo Abeni.
24) Add support for netlink FDB get operations, from Roopa Prabhu.
25) Support bloom filter in mlxsw driver, from Nir Dotan.
26) Add SKB extension infrastructure. This consolidates the handling of
the auxiliary SKB data used by IPSEC and bridge netfilter, and is
designed to support the needs to MPTCP which could be integrated in
the future.
27) Lots of XDP TX optimizations in mlx5 from Tariq Toukan.
* git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-next: (1845 commits)
net: dccp: fix kernel crash on module load
drivers/net: appletalk/cops: remove redundant if statement and mask
bnx2x: Fix NULL pointer dereference in bnx2x_del_all_vlans() on some hw
net/net_namespace: Check the return value of register_pernet_subsys()
net/netlink_compat: Fix a missing check of nla_parse_nested
ieee802154: lowpan_header_create check must check daddr
net/mlx4_core: drop useless LIST_HEAD
mlxsw: spectrum: drop useless LIST_HEAD
net/mlx5e: drop useless LIST_HEAD
iptunnel: Set tun_flags in the iptunnel_metadata_reply from src
net/mlx5e: fix semicolon.cocci warnings
staging: octeon: fix build failure with XFRM enabled
net: Revert recent Spectre-v1 patches.
can: af_can: Fix Spectre v1 vulnerability
packet: validate address length if non-zero
nfc: af_nfc: Fix Spectre v1 vulnerability
phonet: af_phonet: Fix Spectre v1 vulnerability
net: core: Fix Spectre v1 vulnerability
net: minor cleanup in skb_ext_add()
net: drop the unused helper skb_ext_get()
...
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git://git.kernel.org/pub/scm/linux/kernel/git/mchehab/linux-media
Pull more media updates from Mauro Carvalho Chehab:
"The Intel IPU3 camera driver"
* tag 'media/v4.20-7' of git://git.kernel.org/pub/scm/linux/kernel/git/mchehab/linux-media: (23 commits)
media: staging/ipu3-imgu: Add MAINTAINERS entry
media: staging/ipu3-imgu: Address documentation comments
media: v4l: Add Intel IPU3 meta buffer formats
media: doc-rst: Add Intel IPU3 documentation
media: ipu3-imgu: Fix firmware binary location
media: ipu3-imgu: Fix compiler warnings
media: staging/intel-ipu3: Add dual pipe support
media: staging/intel-ipu3: Add Intel IPU3 meta data uAPI
media: staging/intel-ipu3: Add imgu top level pci device driver
media: staging/intel-ipu3: Add v4l2 driver based on media framework
media: staging/intel-ipu3: Add css pipeline programming
media: staging/intel-ipu3: css: Initialize css hardware
media: staging/intel-ipu3: css: Compute and program ccs
media: staging/intel-ipu3: css: Add static settings for image pipeline
media: staging/intel-ipu3: css: Add support for firmware management
media: staging/intel-ipu3: css: Add dma buff pool utility functions
media: staging/intel-ipu3: Implement DMA mapping functions
media: staging/intel-ipu3: mmu: Implement driver
media: staging/intel-ipu3: abi: Add structs
media: staging/intel-ipu3: abi: Add register definitions and enum
...
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git://git.kernel.org/pub/scm/linux/kernel/git/mchehab/linux-media
Pull media updates from Mauro Carvalho Chehab:
"First set of media patches contains:
- Three new platform drivers: aspeed-video seco-sed and sun5i-csi;
- One new sensor driver: imx214;
- Support for Xbox DVD Movie Playback kit remote controller;
- Removal of the legacy friio driver. The functionalities were ported
to another driver, already merged;
- New staging driver: Rockchip VPU;
- Added license text or SPDX tags to all media documentation files;
- Usual set of cleanup, fixes and enhancements"
* tag 'media/v4.20-6' of git://git.kernel.org/pub/scm/linux/kernel/git/mchehab/linux-media: (263 commits)
media: cx23885: only reset DMA on problematic CPUs
media: ddbridge: Move asm includes after linux ones
media: drxk_hard: check if parameter is not NULL
media: docs: fix some GPL licensing ambiguity at the text
media: platform: Add Aspeed Video Engine driver
media: dt-bindings: media: Add Aspeed Video Engine binding documentation
media: vimc: fix start stream when link is disabled
media: v4l2-device: Link subdevices to their parent devices if available
media: siano: Use kmemdup instead of duplicating its function
media: rockchip vpu: remove some unused vars
media: cedrus: don't initialize pointers with zero
media: cetrus: return an error if alloc fails
media: cedrus: Add device-tree compatible and variant for A64 support
media: cedrus: Add device-tree compatible and variant for H5 support
media: dt-bindings: media: cedrus: Add compatibles for the A64 and H5
media: video-i2c: check if chip struct has set_power function
media: video-i2c: support runtime PM
media: staging: media: imx: Use of_node_name_eq for node name comparisons
media: v4l2-subdev: document controls need _FL_HAS_DEVNODE
media: vivid: Improve timestamping
...
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Pull drm updates from Dave Airlie:
"Core:
- shared fencing staging removal
- drop transactional atomic helpers and move helpers to new location
- DP/MST atomic cleanup
- Leasing cleanups and drop EXPORT_SYMBOL
- Convert drivers to atomic helpers and generic fbdev.
- removed deprecated obj_ref/unref in favour of get/put
- Improve dumb callback documentation
- MODESET_LOCK_BEGIN/END helpers
panels:
- CDTech panels, Banana Pi Panel, DLC1010GIG,
- Olimex LCD-O-LinuXino, Samsung S6D16D0, Truly NT35597 WQXGA,
- Himax HX8357D, simulated RTSM AEMv8.
- GPD Win2 panel
- AUO G101EVN010
vgem:
- render node support
ttm:
- move global init out of drivers
- fix LRU handling for ghost objects
- Support for simultaneous submissions to multiple engines
scheduler:
- timeout/fault handling changes to help GPU recovery
- helpers for hw with preemption support
i915:
- Scaler/Watermark fixes
- DP MST + powerwell fixes
- PSR fixes
- Break long get/put shmemfs pages
- Icelake fixes
- Icelake DSI video mode enablement
- Engine workaround improvements
amdgpu:
- freesync support
- GPU reset enabled on CI, VI, SOC15 dGPUs
- ABM support in DC
- KFD support for vega12/polaris12
- SDMA paging queue on vega
- More amdkfd code sharing
- DCC scanout on GFX9
- DC kerneldoc
- Updated SMU firmware for GFX8 chips
- XGMI PSP + hive reset support
- GPU reset
- DC trace support
- Powerplay updates for newer Polaris
- Cursor plane update fast path
- kfd dma-buf support
virtio-gpu:
- add EDID support
vmwgfx:
- pageflip with damage support
nouveau:
- Initial Turing TU104/TU106 modesetting support
msm:
- a2xx gpu support for apq8060 and imx5
- a2xx gpummu support
- mdp4 display support for apq8060
- DPU fixes and cleanups
- enhanced profiling support
- debug object naming interface
- get_iova/page pinning decoupling
tegra:
- Tegra194 host1x, VIC and display support enabled
- Audio over HDMI for Tegra186 and Tegra194
exynos:
- DMA/IOMMU refactoring
- plane alpha + blend mode support
- Color format fixes for mixer driver
rcar-du:
- R8A7744 and R8A77470 support
- R8A77965 LVDS support
imx:
- fbdev emulation fix
- multi-tiled scalling fixes
- SPDX identifiers
rockchip
- dw_hdmi support
- dw-mipi-dsi + dual dsi support
- mailbox read size fix
qxl:
- fix cursor pinning
vc4:
- YUV support (scaling + cursor)
v3d:
- enable TFU (Texture Formatting Unit)
mali-dp:
- add support for linear tiled formats
sun4i:
- Display Engine 3 support
- H6 DE3 mixer 0 support
- H6 display engine support
- dw-hdmi support
- H6 HDMI phy support
- implicit fence waiting
- BGRX8888 support
meson:
- Overlay plane support
- implicit fence waiting
- HDMI 1.4 4k modes
bridge:
- i2c fixes for sii902x"
* tag 'drm-next-2018-12-14' of git://anongit.freedesktop.org/drm/drm: (1403 commits)
drm/amd/display: Add fast path for cursor plane updates
drm/amdgpu: Enable GPU recovery by default for CI
drm/amd/display: Fix duplicating scaling/underscan connector state
drm/amd/display: Fix unintialized max_bpc state values
Revert "drm/amd/display: Set RMX_ASPECT as default"
drm/amdgpu: Fix stub function name
drm/msm/dpu: Fix clock issue after bind failure
drm/msm/dpu: Clean up dpu_media_info.h static inline functions
drm/msm/dpu: Further cleanups for static inline functions
drm/msm/dpu: Cleanup the debugfs functions
drm/msm/dpu: Remove dpu_irq and unused functions
drm/msm: Make irq_postinstall optional
drm/msm/dpu: Cleanup callers of dpu_hw_blk_init
drm/msm/dpu: Remove unused functions
drm/msm/dpu: Remove dpu_crtc_is_enabled()
drm/msm/dpu: Remove dpu_crtc_get_mixer_height
drm/msm/dpu: Remove dpu_dbg
drm/msm: dpu: Remove crtc_lock
drm/msm: dpu: Remove vblank_requested flag from dpu_crtc
drm/msm: dpu: Separate crtc assignment from vblank enable
...
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Lots of conflicts, by happily all cases of overlapping
changes, parallel adds, things of that nature.
Thanks to Stephen Rothwell, Saeed Mahameed, and others
for their guidance in these resolutions.
Signed-off-by: David S. Miller <davem@davemloft.net>
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It is reported that commit 95f408bbc4e4 ("media: cx23885: Ryzen DMA
related RiSC engine stall fixes") caused regresssions with other CPUs.
Ensure that the quirk will be applied only for the CPUs that
are known to cause problems.
A module option is added for explicit control of the behaviour.
Fixes: 95f408bbc4e4 ("media: cx23885: Ryzen DMA related RiSC engine stall fixes")
Signed-off-by: Brad Love <brad@nextdimension.cc>
Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
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Without this, cpumask_t and bool are not defined:
In file included from drivers/media/pci/ddbridge/ddbridge-ci.c:19:
In file included from drivers/media/pci/ddbridge/ddbridge.h:22:
./arch/arm/include/asm/irq.h:35:50: error: unknown type name 'cpumask_t'
extern void arch_trigger_cpumask_backtrace(const cpumask_t *mask,
^
./arch/arm/include/asm/irq.h:36:9: error: unknown type name 'bool'
bool exclude_self);
^
Doing a survey of the kernel tree, this appears to be expected because
'#include <asm/irq.h>' is always after the linux includes.
This also fixes warnings of this variety (with Clang):
In file included from drivers/media/pci/ddbridge/ddbridge-ci.c:19:
In file included from drivers/media/pci/ddbridge/ddbridge.h:56:
In file included from ./include/media/dvb_net.h:22:
In file included from ./include/linux/netdevice.h:50:
In file included from ./include/uapi/linux/neighbour.h:6:
In file included from ./include/linux/netlink.h:9:
In file included from ./include/net/scm.h:11:
In file included from ./include/linux/sched/signal.h:6:
./include/linux/signal.h:87:11: warning: array index 3 is past the end
of the array (which contains 2 elements) [-Warray-bounds]
return (set->sig[3] | set->sig[2] |
^ ~
./arch/arm/include/asm/signal.h:17:2: note: array 'sig' declared here
unsigned long sig[_NSIG_WORDS];
^
Fixes: b6973637c4cc ("media: ddbridge: remove another duplicate of io.h and sort includes")
Signed-off-by: Nathan Chancellor <natechancellor@gmail.com>
Tested-by: Guenter Roeck <linux@roeck-us.net>
Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
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There is a smatch warning:
drivers/media/dvb-frontends/drxk_hard.c: drivers/media/dvb-frontends/drxk_hard.c:1478 scu_command() error: we previously assumed 'parameter' could be null (see line 1467)
Telling that parameter might be NULL. Well, it can't, due to the
way the driver works, but it doesn't hurt to add a check, in order
to shut up smatch.
Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
Reviewed-by: Nick Desaulniers <ndesaulniers@google.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
|
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Linux 4.20-rc7
* tag 'v4.20-rc7': (403 commits)
Linux 4.20-rc7
scripts/spdxcheck.py: always open files in binary mode
checkstack.pl: fix for aarch64
userfaultfd: check VM_MAYWRITE was set after verifying the uffd is registered
fs/iomap.c: get/put the page in iomap_page_create/release()
hugetlbfs: call VM_BUG_ON_PAGE earlier in free_huge_page()
memblock: annotate memblock_is_reserved() with __init_memblock
psi: fix reference to kernel commandline enable
arch/sh/include/asm/io.h: provide prototypes for PCI I/O mapping in asm/io.h
mm/sparse: add common helper to mark all memblocks present
mm: introduce common STRUCT_PAGE_MAX_SHIFT define
alpha: fix hang caused by the bootmem removal
XArray: Fix xa_alloc when id exceeds max
drm/vmwgfx: Protect from excessive execbuf kernel memory allocations v3
MAINTAINERS: Daniel for drm co-maintainer
drm/amdgpu: drop fclk/gfxclk ratio setting
IB/core: Fix oops in netdev_next_upper_dev_rcu()
dm thin: bump target version
drm/vmwgfx: remove redundant return ret statement
drm/i915: Flush GPU relocs harder for gen3
...
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The V4L2_BUF_TYPE_META_OUTPUT mirrors the V4L2_BUF_TYPE_META_CAPTURE with
the exception that it is an OUTPUT type. The use case for this is to pass
buffers to the device that are not image data but metadata. The formats,
just as the metadata capture formats, are typically device specific and
highly structured.
Signed-off-by: Sakari Ailus <sakari.ailus@linux.intel.com>
Acked-by: Hans Verkuil <hans.verkuil@cisco.com>
Reviewed-by: Tomasz Figa <tfiga@chromium.org>
Tested-by: Tian Shu Qiu <tian.shu.qiu@intel.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
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When parallel bus is used and data-active is being parsed, incorrect
flags are cleared.
Clear the correct flag bits.
Fixes: e9be1b863e2c2948deb003df8edd9635b4611a8a (media: v4l: fwnode:
Use default parallel flags).
Cc: stable@vger.kernel.org # for Kernel 4.20
Signed-off-by: Ondrej Jirman <megous@megous.com>
Signed-off-by: Sakari Ailus <sakari.ailus@linux.intel.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
|
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The Video Engine (VE) embedded in the Aspeed AST2400 and AST2500 SOCs
can capture and compress video data from digital or analog sources. With
the Aspeed chip acting a service processor, the Video Engine can capture
the host processor graphics output.
Add a V4L2 driver to capture video data and compress it to JPEG images.
Make the video frames available through the V4L2 streaming interface.
Signed-off-by: Eddie James <eajames@linux.ibm.com>
Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl>
Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
|
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Daniel Borkmann says:
====================
pull-request: bpf-next 2018-12-11
The following pull-request contains BPF updates for your *net-next* tree.
It has three minor merge conflicts, resolutions:
1) tools/testing/selftests/bpf/test_verifier.c
Take first chunk with alignment_prevented_execution.
2) net/core/filter.c
[...]
case bpf_ctx_range_ptr(struct __sk_buff, flow_keys):
case bpf_ctx_range(struct __sk_buff, wire_len):
return false;
[...]
3) include/uapi/linux/bpf.h
Take the second chunk for the two cases each.
The main changes are:
1) Add support for BPF line info via BTF and extend libbpf as well
as bpftool's program dump to annotate output with BPF C code to
facilitate debugging and introspection, from Martin.
2) Add support for BPF_ALU | BPF_ARSH | BPF_{K,X} in interpreter
and all JIT backends, from Jiong.
3) Improve BPF test coverage on archs with no efficient unaligned
access by adding an "any alignment" flag to the BPF program load
to forcefully disable verifier alignment checks, from David.
4) Add a new bpf_prog_test_run_xattr() API to libbpf which allows for
proper use of BPF_PROG_TEST_RUN with data_out, from Lorenz.
5) Extend tc BPF programs to use a new __sk_buff field called wire_len
for more accurate accounting of packets going to wire, from Petar.
6) Improve bpftool to allow dumping the trace pipe from it and add
several improvements in bash completion and map/prog dump,
from Quentin.
7) Optimize arm64 BPF JIT to always emit movn/movk/movk sequence for
kernel addresses and add a dedicated BPF JIT backend allocator,
from Ard.
8) Add a BPF helper function for IR remotes to report mouse movements,
from Sean.
9) Various cleanups in BPF prog dump e.g. to make UAPI bpf_prog_info
member naming consistent with existing conventions, from Yonghong
and Song.
10) Misc cleanups and improvements in allowing to pass interface name
via cmdline for xdp1 BPF example, from Matteo.
11) Fix a potential segfault in BPF sample loader's kprobes handling,
from Daniel T.
12) Fix SPDX license in libbpf's README.rst, from Andrey.
====================
Signed-off-by: David S. Miller <davem@davemloft.net>
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Some IR remotes have a directional pad or other pointer-like thing that
can be used as a mouse. Make it possible to decode these types of IR
protocols in BPF.
Cc: netdev@vger.kernel.org
Signed-off-by: Sean Young <sean@mess.org>
Signed-off-by: Alexei Starovoitov <ast@kernel.org>
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If link is disabled, media_entity_remote_pad returns NULL, causing a
NULL pointer deference.
Ignore links that are not enabled instead.
Signed-off-by: Helen Koike <helen.koike@collabora.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
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Currently v4l2_device_register_subdev_nodes() does not initialize the
dev_parent field of the video_device structs it creates for subdevices
being registered. This leads to __video_register_device() falling back
to the parent device of associated v4l2_device struct, which often does
not match the physical device the subdevice is registered for.
Due to the problem above, the links between real devices and v4l-subdev
nodes cannot be obtained from sysfs, which might be confusing for the
userspace trying to identify the hardware.
Fix this by initializing the dev_parent field of the video_device struct
with the value of dev field of the v4l2_subdev struct. In case of
subdevices without a parent struct device, the field will be NULL and the
old behavior will be preserved by the semantics of
__video_register_device().
Signed-off-by: Tomasz Figa <tfiga@chromium.org>
Acked-by: Sakari Ailus <sakari.ailus@linux.intel.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
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kmemdup has implemented the function that kmalloc() + memcpy().
We prefer to kmemdup rather than code opened implementation.
This issue was detected with the help of coccinelle.
Signed-off-by: Wen Yang <wen.yang99@zte.com.cn>
CC: Tomoki Sekiyama <tomoki.sekiyama@gmail.com>
CC: linux-kernel@vger.kernel.org
Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
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Not all future supported video chips will always have power management
support, and so it is important to check before calling set_power() is
defined.
Signed-off-by: Matt Ranostay <matt.ranostay@konsulko.com>
Reviewed-by: Akinobu Mita <akinobu.mita@gmail.com>
Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl>
Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
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AMG88xx has a register for setting operating mode. This adds support
runtime PM by changing the operating mode.
The instruction for changing sleep mode to normal mode is from the
reference specifications.
https://docid81hrs3j1.cloudfront.net/medialibrary/2017/11/PANA-S-A0002141979-1.pdf
Reviewed-by: Matt Ranostay <matt.ranostay@konsulko.com>
Acked-by: Sakari Ailus <sakari.ailus@linux.intel.com>
Signed-off-by: Akinobu Mita <akinobu.mita@gmail.com>
Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl>
Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
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Simulate a more precise timestamp by calculating it based on the
current framerate.
Signed-off-by: Gabriel Francisco Mandaji <gfmandaji@gmail.com>
Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl>
[hverkuil-cisco@xs4all.nl: replaced division by 2 with bit shift]
Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
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Add the R8A77980 SoC support to the R-Car VIN driver.
Signed-off-by: Sergei Shtylyov <sergei.shtylyov@cogentembedded.com>
Acked-by: Niklas Söderlund <niklas.soderlund+renesas@ragnatech.se>
Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl>
Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
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Add the R-Car V3H (AKA R8A77980) SoC support to the R-Car CSI2 driver.
Signed-off-by: Sergei Shtylyov <sergei.shtylyov@cogentembedded.com>
Acked-by: Rob Herring <robh@kernel.org>
Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl>
Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
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Janusz Krzysztofik
Jacopo Mondi
Pawe? Chmiel
Steve Longerbeam
Akinobu Mita
Ezequiel Garcia
Hans Verkuil
Lucas A. M. Magalhães
Sakari Ailus
Chen-Yu Tsai
French, Nicholas A
Cody P Schafer
Loic Poulain
Sean Young
Alistair Strachan
Thierry Reding
Luis Chamberlain
Linus Torvalds
Arun KS
David S. Miller
Brad Love
Nathan Chancellor
Mauro Carvalho Chehab
Ondrej Jirman
Eddie James
Helen Fornazier
Tomasz Figa
Wen Yang
Matt Ranostay
Gabriel Francisco Mandaji
Sergei Shtylyov