The driver is perfectly capable of being built without CONFIG_OF.
Remove this dependency, which is useful for compile-only tests.
Signed-off-by: Ezequiel Garcia <ezequiel@collabora.com>
Acked-by: Helen Koike <helen.koike@collabora.com>
Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl>
Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
If CONFIG_OF is not selected, the compiler will complain:
drivers/staging/media/rkisp1/rkisp1-dev.c: In function ‘rkisp1_probe’:
drivers/staging/media/rkisp1/rkisp1-dev.c:457:22: warning: unused variable ‘node’ [-Wunused-variable]
457 | struct device_node *node = pdev->dev.of_node;
Rework the code slightly and make the compiler happy.
Suggested-by: Robin Murphy <robin.murphy@arm.com>
Signed-off-by: Ezequiel Garcia <ezequiel@collabora.com>
Acked-by: Helen Koike <helen.koike@collabora.com>
Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl>
Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
v4l2_fh struct define differently by CONFIG_V4L2_MEM2MEM_DEV.
If some vendors use CONFIG_V4L2_MEM2MEM_DEV by module,
it can make the mismatch of v4l2_fh sturct.
By the mismatch, the following error occurs.
===============================
[ 7.533506] v4l2_mem2mem: disagrees about version of symbol video_devdata
[ 7.533594] v4l2_mem2mem: Unknown symbol video_devdata (err -22)
[ 7.535319] v4l2_mem2mem: disagrees about version of symbol v4l2_event_pending
[ 7.542532] v4l2_mem2mem: Unknown symbol v4l2_event_pending (err -22)
===============================
So v4l2_fh struct is modified to does not have dependency
for CONFIG_V4L2_MEM2MEM_DEV.
Signed-off-by: Seungchul Kim <sc377.kim@samsung.com>
Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl>
Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
The fields 'fmt_type' in the structs
'rkisp1_rsz_config', 'rkisp1_isp_mbus_info' are of type
'v4l2_pixel_encoding' so it is nicer to change their name to
'pixel_enc'. Also change the define 'RKISP1_DEF_FMT_TYPE' to
'RKISP1_DEF_PIXEL_ENC'
Signed-off-by: Dafna Hirschfeld <dafna.hirschfeld@collabora.com>
Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl>
Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
The pixel encoding can be retrieved from the cap->pix.info.
Therefore the field fmt_type can be removed from the
struct rkisp1_capture_fmt_cfg.
Signed-off-by: Dafna Hirschfeld <dafna.hirschfeld@collabora.com>
Acked-by: Helen Koike <helen.koike@collabora.com>
Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl>
Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
The enum rkisp1_fmt_pix_type that holds the pixel format
which is one of RGB, YUV, BAYER, can be replace by the
v4l2 enum v4l2_pixel_encoding.
Signed-off-by: Dafna Hirschfeld <dafna.hirschfeld@collabora.com>
Acked-by: Helen Koike <helen.koike@collabora.com>
Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl>
Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
Enabling CONFIG_DMA_API_DEBUG=y and CONFIG_DMA_API_DEBUG_SG=y will
enable extra validation on DMA operations ensuring that the size
restraints are met.
When using the FCP in conjunction with the VSP1/DU, and display frames,
the size of the DMA operations is larger than the default maximum
segment size reported by the DMA core (64K). With the DMA debug enabled,
this produces a warning such as the following:
"DMA-API: rcar-fcp fea27000.fcp: mapping sg segment longer than device
claims to support [len=3145728] [max=65536]"
We have no specific limitation on the segment size which isn't already
handled by the VSP1/DU which actually handles the DMA allcoations and
buffer management, so define a maximum segment size of up to 4GB (a 32
bit mask).
Reported-by: Geert Uytterhoeven <geert+renesas@glider.be>
Fixes: 7b49235e83 ("[media] v4l: Add Renesas R-Car FCP driver")
Signed-off-by: Kieran Bingham <kieran.bingham+renesas@ideasonboard.com>
Reviewed-by: Geert Uytterhoeven <geert+renesas@glider.be>
Tested-by: Geert Uytterhoeven <geert+renesas@glider.be>
Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl>
Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
remove the TODO item:
* Make sure uapi structs have the same size and layout in 32 and 62 bits,
and that there are no holes in the structures (pahole is a utility that
can be used to test this).
It was tested with pahole and found compatible.
Signed-off-by: Dafna Hirschfeld <dafna.hirschfeld@collabora.com>
Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl>
Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
If these functions fail then we return success, but we should instead
preserve negative error code and return that.
Fixes: fde649b418 ("media: vicodec: Register another node for stateless decoder")
Fixes: c022a4a957 ("media: vicodec: add struct for encoder/decoder instance")
Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl>
Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
Improve the documentation by providing examples on how to test camera
capture on imx6q-sabresd via v4l2-ctl and Gstreamer.
Signed-off-by: Fabio Estevam <festevam@gmail.com>
Reviewed-by: Steve Longerbeam<slongerbeam@gmail.com>
Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl>
Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
In order to improve the documentation, provide the OV5640 MIPI module
part number that is used on the imx6q-sabresd board.
Signed-off-by: Fabio Estevam <festevam@gmail.com>
Reviewed-by: Steve Longerbeam <slongerbeam@gmail.com>
Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl>
Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
The current example for imx6q-sabresd is for a direct conversion pipeline.
Provide an extra example using unprocessed video capture for completeness.
Signed-off-by: Fabio Estevam <festevam@gmail.com>
Reviewed-by: Steve Longerbeam <slongerbeam@gmail.com>
Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl>
Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
The current instructions for imx6q-sabresd do not lead to functional
capture on OV5640 MIPI CSI-2.
The reason for this, as explained by Steve Longerbeam, is that OV5640 by
default transmits on virtual channel 0, not channel 1 as is given in the
instructions.
Adapt the instructions to use virtual channel 0 so that a working
camera setup can be achieved on imx6q-sabresd.
Also, since we are using an IC direct conversion pipeline, improve
the example by demonstrating colorspace and scaling.
Signed-off-by: Fabio Estevam <festevam@gmail.com>
Reviewed-by: Steve Longerbeam<slongerbeam@gmail.com>
Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl>
Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
Currently v4l2-compliance tool returns the following output:
Compliance test for imx-media-csc-s device /dev/video8:
Driver Info:
Driver name : imx-media-csc-s
Card type : imx-media-csc-scaler
Bus info : platform:imx-media-csc-scaler
The driver name string is limited to 16 characters, so provide
a shorter name in order to get a better output.
While at it, use the same shorter name for driver, card and platform.
Signed-off-by: Fabio Estevam <festevam@gmail.com>
Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl>
Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
The variable status is being assigned a value that is never read.
The assignment is redundant and can be removed.
Addresses-Coverity: ("Unused value")
Signed-off-by: Colin Ian King <colin.king@canonical.com>
Reviewed-by: Ezequiel Garcia <ezequiel@collabora.com>
Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl>
Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
The variable ret is being initialized with a value that is never read
and it is being updated later with a new value. The initialization is
redundant and can be removed.
Addresses-Coverity: ("Unused value")
Signed-off-by: Colin Ian King <colin.king@canonical.com>
Reviewed-by: Ezequiel Garcia <ezequiel@collabora.com>
Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl>
Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
aliases property name must include only lowercase and '-'. Fix in dts
and driver.
Signed-off-by: Hsin-Yi Wang <hsinyi@chromium.org>
Reviewed-by: Matthias Brugger <matthias.bgg@gmail.com>
Reviewed-by: Chun-Kuang Hu <chunkuang.hu@kernel.org>
Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl>
Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
The pointer 'common' is being assigned with a value that is never read,
the assignment is redundant and can be removed.
Addresses-Coverity: ("Unused value")
Signed-off-by: Colin Ian King <colin.king@canonical.com>
Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl>
Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
The imx_media_mbus_fmt_to_pix_fmt() and imx_media_mbus_fmt_to_ipu_image()
functions do not need to modify their mbus argument, and
imx_media_ipu_image_to_mbus_fmt() does not need to modify its ipu_image
argument. Make them const.
[slongerbeam@gmail.com: Constified mbus arg to
imx_media_mbus_fmt_to_ipu_image(), and ipu_image
arg to imx_media_ipu_image_to_mbus_fmt(), as well]
Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Signed-off-by: Steve Longerbeam <slongerbeam@gmail.com>
Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl>
Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
Rename the format lookup and enumeration functions according to their
usage:
- Rename imx_media_(find|enum)_format() to *_pixel_format() to
explicitly state on what formats the functions operate. This aligns
the naming scheme with the media bus and IPU format functions that
already end with *_mbus_format() and *_ipu_formats().
- Rename all enumeration functions to pluralize 'formats' at the end, as
they enumerate multiple formats.
Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl>
Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
To make the code easier to follow, split up find_format() into separate
search functions for pixel formats and media-bus codes, and inline
find_format() into the exported functions imx_media_find_format()
and imx_media_find_mbus_format().
Do the equivalent for enum_format().
Also add comment blocks for the exported find|enum functions.
The convenience functions imx_media_find_ipu_format() and
imx_media_enum_ipu_format() can now be made inline and moved to
imx-media.h.
Signed-off-by: Steve Longerbeam <slongerbeam@gmail.com>
Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl>
Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
The imx_media_pixfmt structures include a codes member that stores
media bus codes as a fixed array of 4 integers. The functions dealing
with the imx_media_pixfmt structures assume that the array of codes is
terminated by a 0 element. This mechanism is fragile, as demonstrated
by several instances of the structure containing 4 non-zero codes.
Fix this by turning the array into a pointer, and providing an
IMX_BUS_FMTS macro to initialize the codes member with a guaranteed 0
element at the end.
[Fixed a NULL deref of the codes pointer in a couple places]
[Added more comments for the struct imx_media_pixfmt members,
including a bold NOTE! for future developers that codes pointer
is NULL for the in-memory-only formats]
Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Signed-off-by: Steve Longerbeam <slongerbeam@gmail.com>
Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl>
Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
Add a PIXFMT_SEL_IPU selection flag, to select only the IPU-internal
pixel formats, and move the single-entry IPU-internal pixel format
arrays into pixel_formats[]. imx_media_find_ipu_format() and
imx_media_enum_ipu_format() can now simply call find_format() and
enum_format().
The RGB32 format is both an IPU-internal format, and an in-memory format
via idmac channels that is supported by the IPUv3 driver, so it appears
twice in pixel_formats[], one with ipufmt=false for the in-memory format,
and again with ipufmt=true for the IPU-internal format.
Signed-off-by: Steve Longerbeam <slongerbeam@gmail.com>
Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl>
Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
After the introduction of the CS_SEL_BAYER flag, the "codespace"
pixel format selection enumeration wording no longer makes sense
(and even before, when selecting between YUV or RGB formats,
"codespace" was a misuse of the term).
Rename
- 'enum codespace_sel' to 'enum imx_pixfmt_sel'
- CS_SEL_* to PIXFMT_SEL_*
- local vars named cs_sel to fmt_sel or just sel
No functional changes.
Signed-off-by: Steve Longerbeam <slongerbeam@gmail.com>
Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl>
Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
- imx_media_capture_device_register() needs to use CS_SEL_ANY when
finding the format from the attached source subdevice, because the
source can be a CSI which supports bayer, and the CSI may have selected
a bayer format when it registered.
- Likewise, imx_media_init_mbus_fmt() is called from the CSI, so the
function may be passed a bayer code. Use CS_SEL_ANY when locating
the format.
Signed-off-by: Steve Longerbeam <slongerbeam@gmail.com>
Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl>
Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
The format lookup (and enumeration) functions take a boolean flag to
tell if Bayer formats should be considered. This leads to hard to read
lines such as
return enum_format(fourcc, NULL, index, cs_sel, true, false);
where the boolean parameters can easily be mixed. To make the code
clearer, add a CS_SEL_BAYER flag that can be passed through the
codespace_sel parameter of the lookup functions to replace the bool
parameter.
[slongerbeam@gmail.com: Instead of declaring CS_SEL_ANY as a bitfield
containing only CS_SEL_YUV | CS_SEL_RGB, declare CS_SEL_ANY as all of
the above (YUV, RGB, BAYER). A new enum is declared for the YUV | RGB
selection as CS_SEL_YUV_RGB, and that is used by sub-devices that
don't support BAYER and only allow selecting and enumerating YUV or RGB
encodings. CS_SEL_ANY is now only used by the CSI sub-devices and the
attached capture interfaces, since only those devices support BAYER
formats.]
Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Signed-off-by: Steve Longerbeam <slongerbeam@gmail.com>
Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl>
Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
The init_mbus_colorimetry() function is small and used in a single
place. The code becomes easier to follow if it gets inline in its
caller. Do so.
Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl>
Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
Since the PWM framework is switching struct pwm_state.period's datatype
to u64, prepare for this transition by using DIV_ROUND_CLOSEST_ULL to
handle a 64-bit dividend.
Cc: Richard Fontana <rfontana@redhat.com>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: Kate Stewart <kstewart@linuxfoundation.org>
Cc: Allison Randal <allison@lohutok.net>
Signed-off-by: Guru Das Srinagesh <gurus@codeaurora.org>
Signed-off-by: Sean Young <sean@mess.org>
Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
Message logged by 'dev_xxx()' or 'pr_xxx()' should end with a '\n'.
While at it, change the log level from 'err' to 'debug'.
Fixes: e6089feca4 ("media: m88ds3103: Add support for ds3103b demod")
Signed-off-by: Christophe JAILLET <christophe.jaillet@wanadoo.fr>
Signed-off-by: Sean Young <sean@mess.org>
Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
This makes it possible to declare dvb_usb_device_properties const.
Signed-off-by: Sean Young <sean@mess.org>
Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
Currently when i2c transfers fail the error return -EREMOTEIO
is assigned to err but then later overwritten when the tuner
attach call is made. Fix this by returning early with the
error return code -EREMOTEIO on i2c transfer failure errors.
If the transfer fails, an uninitialized value will be read from b2.
Addresses-Coverity: ("Unused value")
Fixes: fbfee8684f ("V4L/DVB (5651): Dibusb-mb: convert pll handling to properly use dvb-pll")
Signed-off-by: Colin Ian King <colin.king@canonical.com>
Signed-off-by: Sean Young <sean@mess.org>
Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
If the kernel is built without e.g. the imon IR decoder, the protocols
sysfs file still show the protocol as available. If user-space tries to
enable this decoder, the kernel will report an error:
$ echo +imon > /sys/class/rc/rc0/protocols
[ 57.693033] rc_core: Loaded IR protocol module ir-imon-decoder, but protocol imon still not available
Ensuring that unavailable protocols are not advertised, ensures that
users space knows it is not available, and a BPF based IR decoder can be
loaded instead.
This supports the case when no kernel-based codec needs to be compiled in,
and every IR decoder can be BPF based.
Signed-off-by: Sean Young <sean@mess.org>
Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
The first element of the key array is not used. Remove it, and
along with it a uninitialized memory read.
This should fix the rc debug message.
Link: https://www.spinics.net/lists/kernel/msg3374861.html
Suggested-by: Phong Tran <tranmanphong@gmail.com>
Signed-off-by: Sean Young <sean@mess.org>
Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
When built with:
CONFIG_USB=m
CONFIG_VIDEO_USBVISION=y
It causes ld errors:
ld: drivers/staging/media/usbvision/usbvision-core.o: in function `usbvision_write_reg_irq':
usbvision-core.c:(.text+0x8a4): undefined reference to `usb_submit_urb'
ld: drivers/staging/media/usbvision/usbvision-core.o: in function `usbvision_isoc_irq':
usbvision-core.c:(.text+0x2ee8): undefined reference to `usb_submit_urb'
ld: drivers/staging/media/usbvision/usbvision-core.o: in function `usbvision_read_reg':
usbvision-core.c:(.text+0x30ad): undefined reference to `usb_control_msg'
ld: drivers/staging/media/usbvision/usbvision-core.o: in function `usbvision_write_reg':
usbvision-core.c:(.text+0x3178): undefined reference to `usb_control_msg'
ld: drivers/staging/media/usbvision/usbvision-core.o: in function `usbvision_set_output':
usbvision-core.c:(.text+0x344e): undefined reference to `usb_control_msg'
ld: drivers/staging/media/usbvision/usbvision-core.o: in function `usbvision_set_input':
usbvision-core.c:(.text+0x3b9b): undefined reference to `usb_control_msg'
ld: drivers/staging/media/usbvision/usbvision-core.o: in function `usbvision_setup':
usbvision-core.c:(.text+0x4009): undefined reference to `usb_control_msg'
ld: drivers/staging/media/usbvision/usbvision-core.o:usbvision-core.c:(.text+0x417f): more undefined references to `usb_control_msg' follow
ld: drivers/staging/media/usbvision/usbvision-core.o: in function `usbvision_set_alternate':
usbvision-core.c:(.text+0x4518): undefined reference to `usb_set_interface'
ld: drivers/staging/media/usbvision/usbvision-core.o: in function `usbvision_init_isoc':
usbvision-core.c:(.text+0x4673): undefined reference to `usb_alloc_urb'
ld: usbvision-core.c:(.text+0x46a5): undefined reference to `usb_alloc_coherent'
ld: usbvision-core.c:(.text+0x4765): undefined reference to `usb_submit_urb'
ld: drivers/staging/media/usbvision/usbvision-core.o: in function `usbvision_stop_isoc':
usbvision-core.c:(.text+0x4837): undefined reference to `usb_kill_urb'
ld: usbvision-core.c:(.text+0x485f): undefined reference to `usb_free_coherent'
ld: usbvision-core.c:(.text+0x4874): undefined reference to `usb_free_urb'
ld: usbvision-core.c:(.text+0x48f1): undefined reference to `usb_set_interface'
ld: drivers/staging/media/usbvision/usbvision-video.o: in function `usbvision_release':
usbvision-video.c:(.text+0x1a8a): undefined reference to `usb_free_urb'
ld: drivers/staging/media/usbvision/usbvision-video.o: in function `usbvision_disconnect':
usbvision-video.c:(.text+0x1b74): undefined reference to `usb_put_dev'
ld: drivers/staging/media/usbvision/usbvision-video.o: in function `usbvision_radio_close':
usbvision-video.c:(.text+0x1c89): undefined reference to `usb_set_interface'
ld: drivers/staging/media/usbvision/usbvision-video.o: in function `usbvision_probe':
usbvision-video.c:(.text+0x1e4b): undefined reference to `usb_get_dev'
ld: usbvision-video.c:(.text+0x20e1): undefined reference to `usb_alloc_urb'
ld: usbvision-video.c:(.text+0x2797): undefined reference to `usb_put_dev'
ld: drivers/staging/media/usbvision/usbvision-video.o: in function `usbvision_exit':
usbvision-video.c:(.exit.text+0x37): undefined reference to `usb_deregister'
ld: drivers/staging/media/usbvision/usbvision-video.o: in function `usbvision_init':
usbvision-video.c:(.init.text+0xf9): undefined reference to `usb_register_driver'
ld: drivers/staging/media/usbvision/usbvision-i2c.o: in function `usbvision_i2c_write':
usbvision-i2c.c:(.text+0x2f4): undefined reference to `usb_control_msg'
Reported-by: Randy Dunlap <rdunlap@infradead.org>
Acked-by: Randy Dunlap <rdunlap@infradead.org> # build-tested
Acked-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
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Merge tag 'v5.7-rc2' into patchwork
Linux 5.7-rc2
* tag 'v5.7-rc2': (331 commits)
Linux 5.7-rc2
mm: Fix MREMAP_DONTUNMAP accounting on VMA merge
xattr.h: Replace zero-length array with flexible-array member
uapi: linux: fiemap.h: Replace zero-length array with flexible-array member
uapi: linux: dlm_device.h: Replace zero-length array with flexible-array member
tpm_eventlog.h: Replace zero-length array with flexible-array member
ti_wilink_st.h: Replace zero-length array with flexible-array member
swap.h: Replace zero-length array with flexible-array member
skbuff.h: Replace zero-length array with flexible-array member
sched: topology.h: Replace zero-length array with flexible-array member
rslib.h: Replace zero-length array with flexible-array member
rio.h: Replace zero-length array with flexible-array member
posix_acl.h: Replace zero-length array with flexible-array member
platform_data: wilco-ec.h: Replace zero-length array with flexible-array member
memcontrol.h: Replace zero-length array with flexible-array member
list_lru.h: Replace zero-length array with flexible-array member
lib: cpu_rmap: Replace zero-length array with flexible-array member
irq.h: Replace zero-length array with flexible-array member
ihex.h: Replace zero-length array with flexible-array member
igmp.h: Replace zero-length array with flexible-array member
...
When remapping a mapping where a portion of a VMA is remapped
into another portion of the VMA it can cause the VMA to become
split. During the copy_vma operation the VMA can actually
be remerged if it's an anonymous VMA whose pages have not yet
been faulted. This isn't normally a problem because at the end
of the remap the original portion is unmapped causing it to
become split again.
However, MREMAP_DONTUNMAP leaves that original portion in place which
means that the VMA which was split and then remerged is not actually
split at the end of the mremap. This patch fixes a bug where
we don't detect that the VMAs got remerged and we end up
putting back VM_ACCOUNT on the next mapping which is completely
unreleated. When that next mapping is unmapped it results in
incorrectly unaccounting for the memory which was never accounted,
and eventually we will underflow on the memory comittment.
There is also another issue which is similar, we're currently
accouting for the number of pages in the new_vma but that's wrong.
We need to account for the length of the remap operation as that's
all that is being added. If there was a mapping already at that
location its comittment would have been adjusted as part of
the munmap at the start of the mremap.
A really simple repro can be seen in:
https://gist.github.com/bgaff/e101ce99da7d9a8c60acc641d07f312c
Fixes: e346b38130 ("mm/mremap: add MREMAP_DONTUNMAP to mremap()")
Reported-by: syzbot <syzkaller@googlegroups.com>
Signed-off-by: Brian Geffon <bgeffon@google.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
clk where we want to keep it on for earlycon.
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Merge tag 'clk-fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/clk/linux
Pull clk fixes from Stephen Boyd:
"Two build fixes for a couple clk drivers and a fix for the Unisoc
serial clk where we want to keep it on for earlycon"
* tag 'clk-fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/clk/linux:
clk: sprd: don't gate uart console clock
clk: mmp2: fix link error without mmp2
clk: asm9260: fix __clk_hw_register_fixed_rate_with_accuracy typo
objtool:
- Ignore the double UD2 which is emitted in BUG() when CONFIG_UBSAN_TRAP
is enabled.
- Support clang non-section symbols in objtool ORC dump
- Fix switch table detection in .text.unlikely
- Make the BP scratch register warning more robust.
x86:
- Increase microcode maximum patch size for AMD to cope with new CPUs
which have a larger patch size.
- Fix a crash in the resource control filesystem when the removal of the
default resource group is attempted.
- Preserve Code and Data Prioritization enabled state accross CPU
hotplug.
- Update split lock cpu matching to use the new X86_MATCH macros.
- Change the split lock enumeration as Intel finaly decided that the
IA32_CORE_CAPABILITIES bits are not architectural contrary to what
the SDM claims. !@#%$^!
- Add Tremont CPU models to the split lock detection cpu match.
- Add a missing static attribute to make sparse happy.
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Merge tag 'x86-urgent-2020-04-19' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull x86 and objtool fixes from Thomas Gleixner:
"A set of fixes for x86 and objtool:
objtool:
- Ignore the double UD2 which is emitted in BUG() when
CONFIG_UBSAN_TRAP is enabled.
- Support clang non-section symbols in objtool ORC dump
- Fix switch table detection in .text.unlikely
- Make the BP scratch register warning more robust.
x86:
- Increase microcode maximum patch size for AMD to cope with new CPUs
which have a larger patch size.
- Fix a crash in the resource control filesystem when the removal of
the default resource group is attempted.
- Preserve Code and Data Prioritization enabled state accross CPU
hotplug.
- Update split lock cpu matching to use the new X86_MATCH macros.
- Change the split lock enumeration as Intel finaly decided that the
IA32_CORE_CAPABILITIES bits are not architectural contrary to what
the SDM claims. !@#%$^!
- Add Tremont CPU models to the split lock detection cpu match.
- Add a missing static attribute to make sparse happy"
* tag 'x86-urgent-2020-04-19' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
x86/split_lock: Add Tremont family CPU models
x86/split_lock: Bits in IA32_CORE_CAPABILITIES are not architectural
x86/resctrl: Preserve CDP enable over CPU hotplug
x86/resctrl: Fix invalid attempt at removing the default resource group
x86/split_lock: Update to use X86_MATCH_INTEL_FAM6_MODEL()
x86/umip: Make umip_insns static
x86/microcode/AMD: Increase microcode PATCH_MAX_SIZE
objtool: Make BP scratch register warning more robust
objtool: Fix switch table detection in .text.unlikely
objtool: Support Clang non-section symbols in ORC generation
objtool: Support Clang non-section symbols in ORC dump
objtool: Fix CONFIG_UBSAN_TRAP unreachable warnings
instead of clockid numbers. The usability nuisance of numbers was noticed
by Michael when polishing the man page.
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Merge tag 'timers-urgent-2020-04-19' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull time namespace fix from Thomas Gleixner:
"An update for the proc interface of time namespaces: Use symbolic
names instead of clockid numbers. The usability nuisance of numbers
was noticed by Michael when polishing the man page"
* tag 'timers-urgent-2020-04-19' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
proc, time/namespace: Show clock symbolic names in /proc/pid/timens_offsets
- Fix the header line of perf stat output for '--metric-only --per-socket'
- Fix the python build with clang
- The usual tools UAPI header synchronization
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Merge tag 'perf-urgent-2020-04-19' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull perf tooling fixes and updates from Thomas Gleixner:
- Fix the header line of perf stat output for '--metric-only --per-socket'
- Fix the python build with clang
- The usual tools UAPI header synchronization
* tag 'perf-urgent-2020-04-19' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
tools headers: Synchronize linux/bits.h with the kernel sources
tools headers: Adopt verbatim copy of compiletime_assert() from kernel sources
tools headers: Update x86's syscall_64.tbl with the kernel sources
tools headers UAPI: Sync drm/i915_drm.h with the kernel sources
tools headers UAPI: Update tools's copy of drm.h headers
tools headers kvm: Sync linux/kvm.h with the kernel sources
tools headers UAPI: Sync linux/fscrypt.h with the kernel sources
tools include UAPI: Sync linux/vhost.h with the kernel sources
tools arch x86: Sync asm/cpufeatures.h with the kernel sources
tools headers UAPI: Sync linux/mman.h with the kernel
tools headers UAPI: Sync sched.h with the kernel
tools headers: Update linux/vdso.h and grab a copy of vdso/const.h
perf stat: Fix no metric header if --per-socket and --metric-only set
perf python: Check if clang supports -fno-semantic-interposition
tools arch x86: Sync the msr-index.h copy with the kernel sources
- Remove setup_irq() and remove_irq(). All users have been converted so
remove them before new users surface.
- A set of bugfixes for various interrupt chip drivers
- Add a few missing static attributes to address sparse warnings.
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Merge tag 'irq-urgent-2020-04-19' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull irq fixes from Thomas Gleixner:
"A set of fixes/updates for the interrupt subsystem:
- Remove setup_irq() and remove_irq(). All users have been converted
so remove them before new users surface.
- A set of bugfixes for various interrupt chip drivers
- Add a few missing static attributes to address sparse warnings"
* tag 'irq-urgent-2020-04-19' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
irqchip/irq-bcm7038-l1: Make bcm7038_l1_of_init() static
irqchip/irq-mvebu-icu: Make legacy_bindings static
irqchip/meson-gpio: Fix HARDIRQ-safe -> HARDIRQ-unsafe lock order
irqchip/sifive-plic: Fix maximum priority threshold value
irqchip/ti-sci-inta: Fix processing of masked irqs
irqchip/mbigen: Free msi_desc on device teardown
irqchip/gic-v4.1: Update effective affinity of virtual SGIs
irqchip/gic-v4.1: Add support for VPENDBASER's Dirty+Valid signaling
genirq: Remove setup_irq() and remove_irq()
- Work around an uninitializaed variable warning where GCC can't figure it
out.
- Allow 'isolcpus=' to skip unknown subparameters so that older kernels
work with the commandline of a newer kernel. Improve the error output
while at it.
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Merge tag 'sched-urgent-2020-04-19' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull scheduler fixes from Thomas Gleixner:
"Two fixes for the scheduler:
- Work around an uninitialized variable warning where GCC can't
figure it out.
- Allow 'isolcpus=' to skip unknown subparameters so that older
kernels work with the commandline of a newer kernel. Improve the
error output while at it"
* tag 'sched-urgent-2020-04-19' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
sched/vtime: Work around an unitialized variable warning
sched/isolation: Allow "isolcpus=" to skip unknown sub-parameters
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Merge tag 'core-urgent-2020-04-19' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull RCU fix from Thomas Gleixner:
"A single bugfix for RCU to prevent taking a lock in NMI context"
* tag 'core-urgent-2020-04-19' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
rcu: Don't acquire lock in NMI handler in rcu_nmi_enter_common()
generic/388 in data=journal mode, removing some BUG_ON's, and cleaning
up some compiler warnings.
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Merge tag 'ext4_for_linus_stable' of git://git.kernel.org/pub/scm/linux/kernel/git/tytso/ext4
Pull ext4 fixes from Ted Ts'o:
"Miscellaneous bug fixes and cleanups for ext4, including a fix for
generic/388 in data=journal mode, removing some BUG_ON's, and cleaning
up some compiler warnings"
* tag 'ext4_for_linus_stable' of git://git.kernel.org/pub/scm/linux/kernel/git/tytso/ext4:
ext4: convert BUG_ON's to WARN_ON's in mballoc.c
ext4: increase wait time needed before reuse of deleted inode numbers
ext4: remove set but not used variable 'es' in ext4_jbd2.c
ext4: remove set but not used variable 'es'
ext4: do not zeroout extents beyond i_disksize
ext4: fix return-value types in several function comments
ext4: use non-movable memory for superblock readahead
ext4: use matching invalidatepage in ext4_writepage
