Fabio Estevam [Thu, 9 Apr 2020 16:29:44 +0000 (18:29 +0200)]
media: imx.rst: Provide the OV560 module part number
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>
Fabio Estevam [Thu, 9 Apr 2020 16:29:43 +0000 (18:29 +0200)]
media: imx.rst: Provide an example for unprocessed video capture
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>
Fabio Estevam [Thu, 9 Apr 2020 16:29:42 +0000 (18:29 +0200)]
media: imx.rst: Fix the MIPI CSI-2 virtual channel
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>
Maheshwar Ajja [Tue, 7 Apr 2020 21:55:26 +0000 (23:55 +0200)]
media: uapi: h264: Add new profile and levels
Add H264 profile "Contrained High" and H264 levels "5.2",
"6.0", "6.1" and "6.2".
Signed-off-by: Maheshwar Ajja <majja@codeaurora.org>
Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
Maheshwar Ajja [Mon, 16 Mar 2020 22:42:30 +0000 (23:42 +0100)]
media: v4l2-ctrl: Add H264 profile and levels
Add H264 profile "Contrained High" and H264 levels "5.2",
"6.0", "6.1" and "6.2".
Signed-off-by: Maheshwar Ajja <majja@codeaurora.org>
Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl>
Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
Fabio Estevam [Wed, 8 Apr 2020 13:10:05 +0000 (15:10 +0200)]
media: imx-media-csc-scaler: Use a shorter name for driver
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>
Colin Ian King [Fri, 10 Apr 2020 14:18:13 +0000 (16:18 +0200)]
media: gspca: remove redundant assignment to variable status
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>
Colin Ian King [Fri, 10 Apr 2020 13:50:14 +0000 (15:50 +0200)]
media: pwc-ctl: remove redundant assignment to variable ret
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>
Hsin-Yi Wang [Tue, 14 Apr 2020 03:08:15 +0000 (05:08 +0200)]
media: mtk-mdp: Use correct aliases name
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>
Colin Ian King [Wed, 15 Apr 2020 22:54:11 +0000 (00:54 +0200)]
media: davinci: remove redundant assignment to pointer 'common'
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>
Laurent Pinchart [Mon, 6 Apr 2020 16:39:05 +0000 (18:39 +0200)]
media: imx: utils: Constify some mbus and ipu_image arguments
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>
Laurent Pinchart [Mon, 6 Apr 2020 16:39:04 +0000 (18:39 +0200)]
media: imx: utils: Rename format lookup and enumeration functions
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>
Steve Longerbeam [Mon, 6 Apr 2020 16:39:03 +0000 (18:39 +0200)]
media: imx: utils: Split find|enum_format into fourcc and mbus functions
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>
Laurent Pinchart [Mon, 6 Apr 2020 16:39:02 +0000 (18:39 +0200)]
media: imx: utils: Make imx_media_pixfmt handle variable number of codes
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>
Steve Longerbeam [Mon, 6 Apr 2020 16:39:01 +0000 (18:39 +0200)]
media: imx: utils: Introduce PIXFMT_SEL_IPU
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>
Steve Longerbeam [Mon, 6 Apr 2020 16:39:00 +0000 (18:39 +0200)]
media: imx: utils: Rename pixel format selection enumeration
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>
Steve Longerbeam [Mon, 6 Apr 2020 16:38:59 +0000 (18:38 +0200)]
media: imx: Fix some pixel format selections
- 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>
Laurent Pinchart [Mon, 6 Apr 2020 16:38:58 +0000 (18:38 +0200)]
media: imx: utils: Handle Bayer format lookup through a selection flag
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>
Laurent Pinchart [Mon, 6 Apr 2020 16:38:57 +0000 (18:38 +0200)]
media: imx: utils: Inline init_mbus_colorimetry() in its caller
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>
Philipp Zabel [Tue, 14 Apr 2020 21:23:38 +0000 (23:23 +0200)]
media: imx: utils: fix media bus format enumeration
Iterate over all media bus formats, not just over the first format in
each imx_media_pixfmt entry.
Before:
$ v4l2-ctl -d $(media-ctl -e ipu1_csi0) --list-subdev-mbus-codes 0
ioctl: VIDIOC_SUBDEV_ENUM_MBUS_CODE (pad=0)
0x2006: MEDIA_BUS_FMT_UYVY8_2X8
0x2008: MEDIA_BUS_FMT_YUYV8_2X8
0x1008: MEDIA_BUS_FMT_RGB565_2X8_LE
0x100a: MEDIA_BUS_FMT_RGB888_1X24
0x100d: MEDIA_BUS_FMT_ARGB8888_1X32
0x3001: MEDIA_BUS_FMT_SBGGR8_1X8
0x3013: MEDIA_BUS_FMT_SGBRG8_1X8
0x3002: MEDIA_BUS_FMT_SGRBG8_1X8
0x3014: MEDIA_BUS_FMT_SRGGB8_1X8
0x3007: MEDIA_BUS_FMT_SBGGR10_1X10
0x300e: MEDIA_BUS_FMT_SGBRG10_1X10
0x300a: MEDIA_BUS_FMT_SGRBG10_1X10
0x300f: MEDIA_BUS_FMT_SRGGB10_1X10
0x2001: MEDIA_BUS_FMT_Y8_1X8
0x200a: MEDIA_BUS_FMT_Y10_1X10
After:
$ v4l2-ctl -d $(media-ctl -e ipu1_csi0) --list-subdev-mbus-codes 0
ioctl: VIDIOC_SUBDEV_ENUM_MBUS_CODE (pad=0)
0x2006: MEDIA_BUS_FMT_UYVY8_2X8
0x200f: MEDIA_BUS_FMT_UYVY8_1X16
0x2008: MEDIA_BUS_FMT_YUYV8_2X8
0x2011: MEDIA_BUS_FMT_YUYV8_1X16
0x1008: MEDIA_BUS_FMT_RGB565_2X8_LE
0x100a: MEDIA_BUS_FMT_RGB888_1X24
0x100c: MEDIA_BUS_FMT_RGB888_2X12_LE
0x100d: MEDIA_BUS_FMT_ARGB8888_1X32
0x3001: MEDIA_BUS_FMT_SBGGR8_1X8
0x3013: MEDIA_BUS_FMT_SGBRG8_1X8
0x3002: MEDIA_BUS_FMT_SGRBG8_1X8
0x3014: MEDIA_BUS_FMT_SRGGB8_1X8
0x3007: MEDIA_BUS_FMT_SBGGR10_1X10
0x3008: MEDIA_BUS_FMT_SBGGR12_1X12
0x3019: MEDIA_BUS_FMT_SBGGR14_1X14
0x301d: MEDIA_BUS_FMT_SBGGR16_1X16
0x300e: MEDIA_BUS_FMT_SGBRG10_1X10
0x3010: MEDIA_BUS_FMT_SGBRG12_1X12
0x301a: MEDIA_BUS_FMT_SGBRG14_1X14
0x301e: MEDIA_BUS_FMT_SGBRG16_1X16
0x300a: MEDIA_BUS_FMT_SGRBG10_1X10
0x3011: MEDIA_BUS_FMT_SGRBG12_1X12
0x301b: MEDIA_BUS_FMT_SGRBG14_1X14
0x301f: MEDIA_BUS_FMT_SGRBG16_1X16
0x300f: MEDIA_BUS_FMT_SRGGB10_1X10
0x3012: MEDIA_BUS_FMT_SRGGB12_1X12
0x301c: MEDIA_BUS_FMT_SRGGB14_1X14
0x3020: MEDIA_BUS_FMT_SRGGB16_1X16
0x2001: MEDIA_BUS_FMT_Y8_1X8
0x200a: MEDIA_BUS_FMT_Y10_1X10
0x2013: MEDIA_BUS_FMT_Y12_1X12
[laurent.pinchart@ideasonboard.com: Decrement index to replace loop counter k]
[laurent.pinchart@ideasonboard.com: Return directly from within the loops]
Fixes:
e130291212df5 ("[media] media: Add i.MX media core driver")
Signed-off-by: Philipp Zabel <p.zabel@pengutronix.de>
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>
Philipp Zabel [Tue, 14 Apr 2020 21:20:29 +0000 (23:20 +0200)]
media: imx: utils: fix and simplify pixel format enumeration
Merge yuv_formats and rgb_formats into a single array. Always loop over
all entries, skipping those that do not match the requested search
criteria. This simplifies the code, lets us get rid of the manual
counting of array entries, and stops accidentally ignoring some non-mbus
RGB formats.
Before:
$ v4l2-ctl -d /dev/video14 --list-formats-out
ioctl: VIDIOC_ENUM_FMT
Type: Video Output
[0]: 'UYVY' (UYVY 4:2:2)
[1]: 'YUYV' (YUYV 4:2:2)
[2]: 'YU12' (Planar YUV 4:2:0)
[3]: 'YV12' (Planar YVU 4:2:0)
[4]: '422P' (Planar YUV 4:2:2)
[5]: 'NV12' (Y/CbCr 4:2:0)
[6]: 'NV16' (Y/CbCr 4:2:2)
[7]: 'RGBP' (16-bit RGB 5-6-5)
[8]: 'RGB3' (24-bit RGB 8-8-8)
[9]: 'BX24' (32-bit XRGB 8-8-8-8)
After:
$ v4l2-ctl -d /dev/video14 --list-formats-out
ioctl: VIDIOC_ENUM_FMT
Type: Video Output
[0]: 'UYVY' (UYVY 4:2:2)
[1]: 'YUYV' (YUYV 4:2:2)
[2]: 'YU12' (Planar YUV 4:2:0)
[3]: 'YV12' (Planar YVU 4:2:0)
[4]: '422P' (Planar YUV 4:2:2)
[5]: 'NV12' (Y/CbCr 4:2:0)
[6]: 'NV16' (Y/CbCr 4:2:2)
[7]: 'RGBP' (16-bit RGB 5-6-5)
[8]: 'RGB3' (24-bit RGB 8-8-8)
[9]: 'BGR3' (24-bit BGR 8-8-8)
[10]: 'BX24' (32-bit XRGB 8-8-8-8)
[11]: 'XR24' (32-bit BGRX 8-8-8-8)
[12]: 'RX24' (32-bit XBGR 8-8-8-8)
[13]: 'XB24' (32-bit RGBX 8-8-8-8)
Tested on a imx6q-sabresd.
[laurent.pinchart@ideasonboard.com: Make loop counters unsigned]
[laurent.pinchart@ideasonboard.com: Decrement index instead of adding a counter]
[laurent.pinchart@ideasonboard.com: Return directly from within loop instead of breaking]
[slongerbeam@gmail.com: Fix colorspace comparison error]
Fixes:
e130291212df5 ("[media] media: Add i.MX media core driver")
Signed-off-by: Philipp Zabel <p.zabel@pengutronix.de>
Tested-by: Fabio Estevam <festevam@gmail.com>
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>
Guru Das Srinagesh [Thu, 9 Apr 2020 06:52:32 +0000 (08:52 +0200)]
media: ir-rx51: Use 64-bit division macro
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>
Christophe JAILLET [Sat, 11 Apr 2020 14:27:29 +0000 (16:27 +0200)]
media: m88ds3103: Add missing '\n' in log messages
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:
e6089feca460 ("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>
Sean Young [Tue, 14 Apr 2020 10:10:43 +0000 (12:10 +0200)]
media: dvb-usb: make dvb_usb_device_properties const
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>
Colin Ian King [Mon, 10 Feb 2020 17:51:33 +0000 (18:51 +0100)]
media: dvb: return -EREMOTEIO on i2c transfer failure.
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:
fbfee8684ff2 ("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>
Sean Young [Tue, 31 Mar 2020 12:39:52 +0000 (14:39 +0200)]
media: rc: if kernel is built without an IR codec, don't advertise it
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>
Sean Young [Thu, 12 Mar 2020 09:22:45 +0000 (10:22 +0100)]
media: dvb: digitv: remove unused array element 0
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>
Mauro Carvalho Chehab [Mon, 20 Apr 2020 16:48:44 +0000 (18:48 +0200)]
media: usbvision: depends on USB
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>
Mauro Carvalho Chehab [Mon, 20 Apr 2020 16:44:03 +0000 (18:44 +0200)]
media: staging: rkisp1 Kconfig: depends on OF
building it with a random config causes a warning:
WARNING: unmet direct dependencies detected for PHY_ROCKCHIP_DPHY_RX0
Depends on [n]: STAGING [=y] && STAGING_MEDIA [=y] && MEDIA_SUPPORT [=y] && (ARCH_ROCKCHIP || COMPILE_TEST [=y]) && OF [=n]
Selected by [y]:
- VIDEO_ROCKCHIP_ISP1 [=y] && STAGING [=y] && STAGING_MEDIA [=y] && MEDIA_SUPPORT [=y] && VIDEO_V4L2 [=y] && (ARCH_ROCKCHIP || COMPILE_TEST [=y])
Reported-by: Randy Dunlap <rdunlap@infradead.org>
Acked-by: Randy Dunlap <rdunlap@infradead.org> # build-tested
Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
Mauro Carvalho Chehab [Mon, 20 Apr 2020 14:50:25 +0000 (16:50 +0200)]
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
...
Linus Torvalds [Sun, 19 Apr 2020 21:35:30 +0000 (14:35 -0700)]
Linux 5.7-rc2
Brian Geffon [Fri, 17 Apr 2020 17:25:56 +0000 (10:25 -0700)]
mm: Fix MREMAP_DONTUNMAP accounting on VMA merge
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:
e346b3813067 ("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>
Linus Torvalds [Sun, 19 Apr 2020 20:59:06 +0000 (13:59 -0700)]
Merge tag 'clk-fixes-for-linus' of git://git./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
Linus Torvalds [Sun, 19 Apr 2020 18:58:32 +0000 (11:58 -0700)]
Merge tag 'x86-urgent-2020-04-19' of git://git./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
Linus Torvalds [Sun, 19 Apr 2020 18:46:21 +0000 (11:46 -0700)]
Merge tag 'timers-urgent-2020-04-19' of git://git./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
Linus Torvalds [Sun, 19 Apr 2020 18:28:01 +0000 (11:28 -0700)]
Merge tag 'perf-urgent-2020-04-19' of git://git./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
Linus Torvalds [Sun, 19 Apr 2020 18:23:33 +0000 (11:23 -0700)]
Merge tag 'irq-urgent-2020-04-19' of git://git./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()
Linus Torvalds [Sun, 19 Apr 2020 18:18:20 +0000 (11:18 -0700)]
Merge tag 'sched-urgent-2020-04-19' of git://git./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
Linus Torvalds [Sun, 19 Apr 2020 18:16:00 +0000 (11:16 -0700)]
Merge tag 'core-urgent-2020-04-19' of git://git./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()
Linus Torvalds [Sun, 19 Apr 2020 18:05:15 +0000 (11:05 -0700)]
Merge tag 'ext4_for_linus_stable' of git://git./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
Linus Torvalds [Sun, 19 Apr 2020 18:00:27 +0000 (11:00 -0700)]
Merge tag '5.7-rc-smb3-fixes' of git://git.samba.org/sfrench/cifs-2.6
Pull cifs fixes from Steve French:
"Three small smb3 fixes: two debug related (helping network tracing for
SMB2 mounts, and the other removing an unintended debug line on
signing failures), and one fixing a performance problem with 64K
pages"
* tag '5.7-rc-smb3-fixes' of git://git.samba.org/sfrench/cifs-2.6:
smb3: remove overly noisy debug line in signing errors
cifs: improve read performance for page size 64KB & cache=strict & vers=2.1+
cifs: dump the session id and keys also for SMB2 sessions
Linus Torvalds [Sun, 19 Apr 2020 17:34:30 +0000 (10:34 -0700)]
Merge tag 'flexible-array-member-5.7-rc2' of git://git./linux/kernel/git/gustavoars/linux
Pull flexible-array member conversion from Gustavo Silva:
"The current codebase makes use of the zero-length array language
extension to the C90 standard, but the preferred mechanism to declare
variable-length types such as these ones is a flexible array
member[1][2], introduced in C99:
struct foo {
int stuff;
struct boo array[];
};
By making use of the mechanism above, we will get a compiler warning
in case the flexible array does not occur last in the structure, which
will help us prevent some kind of undefined behavior bugs from being
inadvertently introduced[3] to the codebase from now on.
Also, notice that, dynamic memory allocations won't be affected by
this change:
"Flexible array members have incomplete type, and so the sizeof
operator may not be applied. As a quirk of the original
implementation of zero-length arrays, sizeof evaluates to zero."[1]
sizeof(flexible-array-member) triggers a warning because flexible
array members have incomplete type[1]. There are some instances of
code in which the sizeof operator is being incorrectly/erroneously
applied to zero-length arrays and the result is zero. Such instances
may be hiding some bugs. So, this work (flexible-array member
convertions) will also help to get completely rid of those sorts of
issues.
Notice that all of these patches have been baking in linux-next for
quite a while now and, 238 more of these patches have already been
merged into 5.7-rc1.
There are a couple hundred more of these issues waiting to be
addressed in the whole codebase"
[1] https://gcc.gnu.org/onlinedocs/gcc/Zero-Length.html
[2] https://github.com/KSPP/linux/issues/21
[3] commit
76497732932f ("cxgb3/l2t: Fix undefined behaviour")
* tag 'flexible-array-member-5.7-rc2' of git://git.kernel.org/pub/scm/linux/kernel/git/gustavoars/linux: (28 commits)
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
genalloc.h: Replace zero-length array with flexible-array member
ethtool.h: Replace zero-length array with flexible-array member
...
Linus Torvalds [Sat, 18 Apr 2020 21:03:12 +0000 (14:03 -0700)]
Merge tag 'scsi-fixes' of git://git./linux/kernel/git/jejb/scsi
Pull SCSI fixes from James Bottomley:
"Seven fixes: three in target, one on a sg error leg, two in qla2xxx
fixing warnings introduced in the last merge window and updating
MAINTAINERS and one in hisi_sas fixing a problem introduced by libata"
* tag 'scsi-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi:
scsi: sg: add sg_remove_request in sg_common_write
scsi: target: tcmu: reset_ring should reset TCMU_DEV_BIT_BROKEN
scsi: target: fix PR IN / READ FULL STATUS for FC
scsi: target: Write NULL to *port_nexus_ptr if no ISID
scsi: MAINTAINERS: Update qla2xxx FC-SCSI driver maintainer
scsi: qla2xxx: Fix regression warnings
scsi: hisi_sas: Fix build error without SATA_HOST
Gustavo A. R. Silva [Tue, 24 Mar 2020 00:41:14 +0000 (19:41 -0500)]
xattr.h: Replace zero-length array with flexible-array member
The current codebase makes use of the zero-length array language
extension to the C90 standard, but the preferred mechanism to declare
variable-length types such as these ones is a flexible array member[1][2],
introduced in C99:
struct foo {
int stuff;
struct boo array[];
};
By making use of the mechanism above, we will get a compiler warning
in case the flexible array does not occur last in the structure, which
will help us prevent some kind of undefined behavior bugs from being
inadvertently introduced[3] to the codebase from now on.
Also, notice that, dynamic memory allocations won't be affected by
this change:
"Flexible array members have incomplete type, and so the sizeof operator
may not be applied. As a quirk of the original implementation of
zero-length arrays, sizeof evaluates to zero."[1]
This issue was found with the help of Coccinelle.
[1] https://gcc.gnu.org/onlinedocs/gcc/Zero-Length.html
[2] https://github.com/KSPP/linux/issues/21
[3] commit
76497732932f ("cxgb3/l2t: Fix undefined behaviour")
Signed-off-by: Gustavo A. R. Silva <gustavo@embeddedor.com>
Gustavo A. R. Silva [Tue, 24 Mar 2020 02:30:22 +0000 (21:30 -0500)]
uapi: linux: fiemap.h: Replace zero-length array with flexible-array member
The current codebase makes use of the zero-length array language
extension to the C90 standard, but the preferred mechanism to declare
variable-length types such as these ones is a flexible array member[1][2],
introduced in C99:
struct foo {
int stuff;
struct boo array[];
};
By making use of the mechanism above, we will get a compiler warning
in case the flexible array does not occur last in the structure, which
will help us prevent some kind of undefined behavior bugs from being
inadvertently introduced[3] to the codebase from now on.
Also, notice that, dynamic memory allocations won't be affected by
this change:
"Flexible array members have incomplete type, and so the sizeof operator
may not be applied. As a quirk of the original implementation of
zero-length arrays, sizeof evaluates to zero."[1]
This issue was found with the help of Coccinelle.
[1] https://gcc.gnu.org/onlinedocs/gcc/Zero-Length.html
[2] https://github.com/KSPP/linux/issues/21
[3] commit
76497732932f ("cxgb3/l2t: Fix undefined behaviour")
Signed-off-by: Gustavo A. R. Silva <gustavo@embeddedor.com>
Gustavo A. R. Silva [Tue, 24 Mar 2020 00:51:46 +0000 (19:51 -0500)]
uapi: linux: dlm_device.h: Replace zero-length array with flexible-array member
The current codebase makes use of the zero-length array language
extension to the C90 standard, but the preferred mechanism to declare
variable-length types such as these ones is a flexible array member[1][2],
introduced in C99:
struct foo {
int stuff;
struct boo array[];
};
By making use of the mechanism above, we will get a compiler warning
in case the flexible array does not occur last in the structure, which
will help us prevent some kind of undefined behavior bugs from being
inadvertently introduced[3] to the codebase from now on.
Also, notice that, dynamic memory allocations won't be affected by
this change:
"Flexible array members have incomplete type, and so the sizeof operator
may not be applied. As a quirk of the original implementation of
zero-length arrays, sizeof evaluates to zero."[1]
This issue was found with the help of Coccinelle.
[1] https://gcc.gnu.org/onlinedocs/gcc/Zero-Length.html
[2] https://github.com/KSPP/linux/issues/21
[3] commit
76497732932f ("cxgb3/l2t: Fix undefined behaviour")
Signed-off-by: Gustavo A. R. Silva <gustavo@embeddedor.com>
Gustavo A. R. Silva [Tue, 24 Mar 2020 00:38:18 +0000 (19:38 -0500)]
tpm_eventlog.h: Replace zero-length array with flexible-array member
The current codebase makes use of the zero-length array language
extension to the C90 standard, but the preferred mechanism to declare
variable-length types such as these ones is a flexible array member[1][2],
introduced in C99:
struct foo {
int stuff;
struct boo array[];
};
By making use of the mechanism above, we will get a compiler warning
in case the flexible array does not occur last in the structure, which
will help us prevent some kind of undefined behavior bugs from being
inadvertently introduced[3] to the codebase from now on.
Also, notice that, dynamic memory allocations won't be affected by
this change:
"Flexible array members have incomplete type, and so the sizeof operator
may not be applied. As a quirk of the original implementation of
zero-length arrays, sizeof evaluates to zero."[1]
This issue was found with the help of Coccinelle.
[1] https://gcc.gnu.org/onlinedocs/gcc/Zero-Length.html
[2] https://github.com/KSPP/linux/issues/21
[3] commit
76497732932f ("cxgb3/l2t: Fix undefined behaviour")
Signed-off-by: Gustavo A. R. Silva <gustavo@embeddedor.com>
Gustavo A. R. Silva [Tue, 24 Mar 2020 00:25:06 +0000 (19:25 -0500)]
ti_wilink_st.h: Replace zero-length array with flexible-array member
The current codebase makes use of the zero-length array language
extension to the C90 standard, but the preferred mechanism to declare
variable-length types such as these ones is a flexible array member[1][2],
introduced in C99:
struct foo {
int stuff;
struct boo array[];
};
By making use of the mechanism above, we will get a compiler warning
in case the flexible array does not occur last in the structure, which
will help us prevent some kind of undefined behavior bugs from being
inadvertently introduced[3] to the codebase from now on.
Also, notice that, dynamic memory allocations won't be affected by
this change:
"Flexible array members have incomplete type, and so the sizeof operator
may not be applied. As a quirk of the original implementation of
zero-length arrays, sizeof evaluates to zero."[1]
This issue was found with the help of Coccinelle.
[1] https://gcc.gnu.org/onlinedocs/gcc/Zero-Length.html
[2] https://github.com/KSPP/linux/issues/21
[3] commit
76497732932f ("cxgb3/l2t: Fix undefined behaviour")
Signed-off-by: Gustavo A. R. Silva <gustavo@embeddedor.com>
Gustavo A. R. Silva [Tue, 24 Mar 2020 00:23:10 +0000 (19:23 -0500)]
swap.h: Replace zero-length array with flexible-array member
The current codebase makes use of the zero-length array language
extension to the C90 standard, but the preferred mechanism to declare
variable-length types such as these ones is a flexible array member[1][2],
introduced in C99:
struct foo {
int stuff;
struct boo array[];
};
By making use of the mechanism above, we will get a compiler warning
in case the flexible array does not occur last in the structure, which
will help us prevent some kind of undefined behavior bugs from being
inadvertently introduced[3] to the codebase from now on.
Also, notice that, dynamic memory allocations won't be affected by
this change:
"Flexible array members have incomplete type, and so the sizeof operator
may not be applied. As a quirk of the original implementation of
zero-length arrays, sizeof evaluates to zero."[1]
This issue was found with the help of Coccinelle.
[1] https://gcc.gnu.org/onlinedocs/gcc/Zero-Length.html
[2] https://github.com/KSPP/linux/issues/21
[3] commit
76497732932f ("cxgb3/l2t: Fix undefined behaviour")
Signed-off-by: Gustavo A. R. Silva <gustavo@embeddedor.com>
Gustavo A. R. Silva [Tue, 24 Mar 2020 00:22:24 +0000 (19:22 -0500)]
skbuff.h: Replace zero-length array with flexible-array member
The current codebase makes use of the zero-length array language
extension to the C90 standard, but the preferred mechanism to declare
variable-length types such as these ones is a flexible array member[1][2],
introduced in C99:
struct foo {
int stuff;
struct boo array[];
};
By making use of the mechanism above, we will get a compiler warning
in case the flexible array does not occur last in the structure, which
will help us prevent some kind of undefined behavior bugs from being
inadvertently introduced[3] to the codebase from now on.
Also, notice that, dynamic memory allocations won't be affected by
this change:
"Flexible array members have incomplete type, and so the sizeof operator
may not be applied. As a quirk of the original implementation of
zero-length arrays, sizeof evaluates to zero."[1]
This issue was found with the help of Coccinelle.
[1] https://gcc.gnu.org/onlinedocs/gcc/Zero-Length.html
[2] https://github.com/KSPP/linux/issues/21
[3] commit
76497732932f ("cxgb3/l2t: Fix undefined behaviour")
Signed-off-by: Gustavo A. R. Silva <gustavo@embeddedor.com>
Gustavo A. R. Silva [Tue, 24 Mar 2020 00:14:37 +0000 (19:14 -0500)]
sched: topology.h: Replace zero-length array with flexible-array member
The current codebase makes use of the zero-length array language
extension to the C90 standard, but the preferred mechanism to declare
variable-length types such as these ones is a flexible array member[1][2],
introduced in C99:
struct foo {
int stuff;
struct boo array[];
};
By making use of the mechanism above, we will get a compiler warning
in case the flexible array does not occur last in the structure, which
will help us prevent some kind of undefined behavior bugs from being
inadvertently introduced[3] to the codebase from now on.
Also, notice that, dynamic memory allocations won't be affected by
this change:
"Flexible array members have incomplete type, and so the sizeof operator
may not be applied. As a quirk of the original implementation of
zero-length arrays, sizeof evaluates to zero."[1]
This issue was found with the help of Coccinelle.
[1] https://gcc.gnu.org/onlinedocs/gcc/Zero-Length.html
[2] https://github.com/KSPP/linux/issues/21
[3] commit
76497732932f ("cxgb3/l2t: Fix undefined behaviour")
Signed-off-by: Gustavo A. R. Silva <gustavo@embeddedor.com>
Gustavo A. R. Silva [Tue, 24 Mar 2020 00:13:20 +0000 (19:13 -0500)]
rslib.h: Replace zero-length array with flexible-array member
The current codebase makes use of the zero-length array language
extension to the C90 standard, but the preferred mechanism to declare
variable-length types such as these ones is a flexible array member[1][2],
introduced in C99:
struct foo {
int stuff;
struct boo array[];
};
By making use of the mechanism above, we will get a compiler warning
in case the flexible array does not occur last in the structure, which
will help us prevent some kind of undefined behavior bugs from being
inadvertently introduced[3] to the codebase from now on.
Also, notice that, dynamic memory allocations won't be affected by
this change:
"Flexible array members have incomplete type, and so the sizeof operator
may not be applied. As a quirk of the original implementation of
zero-length arrays, sizeof evaluates to zero."[1]
This issue was found with the help of Coccinelle.
[1] https://gcc.gnu.org/onlinedocs/gcc/Zero-Length.html
[2] https://github.com/KSPP/linux/issues/21
[3] commit
76497732932f ("cxgb3/l2t: Fix undefined behaviour")
Signed-off-by: Gustavo A. R. Silva <gustavo@embeddedor.com>
Gustavo A. R. Silva [Tue, 24 Mar 2020 00:12:17 +0000 (19:12 -0500)]
rio.h: Replace zero-length array with flexible-array member
The current codebase makes use of the zero-length array language
extension to the C90 standard, but the preferred mechanism to declare
variable-length types such as these ones is a flexible array member[1][2],
introduced in C99:
struct foo {
int stuff;
struct boo array[];
};
By making use of the mechanism above, we will get a compiler warning
in case the flexible array does not occur last in the structure, which
will help us prevent some kind of undefined behavior bugs from being
inadvertently introduced[3] to the codebase from now on.
Also, notice that, dynamic memory allocations won't be affected by
this change:
"Flexible array members have incomplete type, and so the sizeof operator
may not be applied. As a quirk of the original implementation of
zero-length arrays, sizeof evaluates to zero."[1]
This issue was found with the help of Coccinelle.
[1] https://gcc.gnu.org/onlinedocs/gcc/Zero-Length.html
[2] https://github.com/KSPP/linux/issues/21
[3] commit
76497732932f ("cxgb3/l2t: Fix undefined behaviour")
Signed-off-by: Gustavo A. R. Silva <gustavo@embeddedor.com>
Gustavo A. R. Silva [Tue, 24 Mar 2020 00:08:58 +0000 (19:08 -0500)]
posix_acl.h: Replace zero-length array with flexible-array member
The current codebase makes use of the zero-length array language
extension to the C90 standard, but the preferred mechanism to declare
variable-length types such as these ones is a flexible array member[1][2],
introduced in C99:
struct foo {
int stuff;
struct boo array[];
};
By making use of the mechanism above, we will get a compiler warning
in case the flexible array does not occur last in the structure, which
will help us prevent some kind of undefined behavior bugs from being
inadvertently introduced[3] to the codebase from now on.
Also, notice that, dynamic memory allocations won't be affected by
this change:
"Flexible array members have incomplete type, and so the sizeof operator
may not be applied. As a quirk of the original implementation of
zero-length arrays, sizeof evaluates to zero."[1]
This issue was found with the help of Coccinelle.
[1] https://gcc.gnu.org/onlinedocs/gcc/Zero-Length.html
[2] https://github.com/KSPP/linux/issues/21
[3] commit
76497732932f ("cxgb3/l2t: Fix undefined behaviour")
Signed-off-by: Gustavo A. R. Silva <gustavo@embeddedor.com>
Gustavo A. R. Silva [Tue, 24 Mar 2020 00:07:49 +0000 (19:07 -0500)]
platform_data: wilco-ec.h: Replace zero-length array with flexible-array member
The current codebase makes use of the zero-length array language
extension to the C90 standard, but the preferred mechanism to declare
variable-length types such as these ones is a flexible array member[1][2],
introduced in C99:
struct foo {
int stuff;
struct boo array[];
};
By making use of the mechanism above, we will get a compiler warning
in case the flexible array does not occur last in the structure, which
will help us prevent some kind of undefined behavior bugs from being
inadvertently introduced[3] to the codebase from now on.
Also, notice that, dynamic memory allocations won't be affected by
this change:
"Flexible array members have incomplete type, and so the sizeof operator
may not be applied. As a quirk of the original implementation of
zero-length arrays, sizeof evaluates to zero."[1]
This issue was found with the help of Coccinelle.
[1] https://gcc.gnu.org/onlinedocs/gcc/Zero-Length.html
[2] https://github.com/KSPP/linux/issues/21
[3] commit
76497732932f ("cxgb3/l2t: Fix undefined behaviour")
Signed-off-by: Gustavo A. R. Silva <gustavo@embeddedor.com>
Gustavo A. R. Silva [Mon, 23 Mar 2020 23:36:10 +0000 (18:36 -0500)]
memcontrol.h: Replace zero-length array with flexible-array member
The current codebase makes use of the zero-length array language
extension to the C90 standard, but the preferred mechanism to declare
variable-length types such as these ones is a flexible array member[1][2],
introduced in C99:
struct foo {
int stuff;
struct boo array[];
};
By making use of the mechanism above, we will get a compiler warning
in case the flexible array does not occur last in the structure, which
will help us prevent some kind of undefined behavior bugs from being
inadvertently introduced[3] to the codebase from now on.
Also, notice that, dynamic memory allocations won't be affected by
this change:
"Flexible array members have incomplete type, and so the sizeof operator
may not be applied. As a quirk of the original implementation of
zero-length arrays, sizeof evaluates to zero."[1]
This issue was found with the help of Coccinelle.
[1] https://gcc.gnu.org/onlinedocs/gcc/Zero-Length.html
[2] https://github.com/KSPP/linux/issues/21
[3] commit
76497732932f ("cxgb3/l2t: Fix undefined behaviour")
Signed-off-by: Gustavo A. R. Silva <gustavo@embeddedor.com>
Gustavo A. R. Silva [Mon, 23 Mar 2020 23:32:01 +0000 (18:32 -0500)]
list_lru.h: Replace zero-length array with flexible-array member
The current codebase makes use of the zero-length array language
extension to the C90 standard, but the preferred mechanism to declare
variable-length types such as these ones is a flexible array member[1][2],
introduced in C99:
struct foo {
int stuff;
struct boo array[];
};
By making use of the mechanism above, we will get a compiler warning
in case the flexible array does not occur last in the structure, which
will help us prevent some kind of undefined behavior bugs from being
inadvertently introduced[3] to the codebase from now on.
Also, notice that, dynamic memory allocations won't be affected by
this change:
"Flexible array members have incomplete type, and so the sizeof operator
may not be applied. As a quirk of the original implementation of
zero-length arrays, sizeof evaluates to zero."[1]
This issue was found with the help of Coccinelle.
[1] https://gcc.gnu.org/onlinedocs/gcc/Zero-Length.html
[2] https://github.com/KSPP/linux/issues/21
[3] commit
76497732932f ("cxgb3/l2t: Fix undefined behaviour")
Signed-off-by: Gustavo A. R. Silva <gustavo@embeddedor.com>
Gustavo A. R. Silva [Mon, 23 Mar 2020 21:58:49 +0000 (16:58 -0500)]
lib: cpu_rmap: Replace zero-length array with flexible-array member
The current codebase makes use of the zero-length array language
extension to the C90 standard, but the preferred mechanism to declare
variable-length types such as these ones is a flexible array member[1][2],
introduced in C99:
struct foo {
int stuff;
struct boo array[];
};
By making use of the mechanism above, we will get a compiler warning
in case the flexible array does not occur last in the structure, which
will help us prevent some kind of undefined behavior bugs from being
inadvertently introduced[3] to the codebase from now on.
Also, notice that, dynamic memory allocations won't be affected by
this change:
"Flexible array members have incomplete type, and so the sizeof operator
may not be applied. As a quirk of the original implementation of
zero-length arrays, sizeof evaluates to zero."[1]
This issue was found with the help of Coccinelle.
[1] https://gcc.gnu.org/onlinedocs/gcc/Zero-Length.html
[2] https://github.com/KSPP/linux/issues/21
[3] commit
76497732932f ("cxgb3/l2t: Fix undefined behaviour")
Signed-off-by: Gustavo A. R. Silva <gustavo@embeddedor.com>
Gustavo A. R. Silva [Mon, 23 Mar 2020 23:01:11 +0000 (18:01 -0500)]
irq.h: Replace zero-length array with flexible-array member
The current codebase makes use of the zero-length array language
extension to the C90 standard, but the preferred mechanism to declare
variable-length types such as these ones is a flexible array member[1][2],
introduced in C99:
struct foo {
int stuff;
struct boo array[];
};
By making use of the mechanism above, we will get a compiler warning
in case the flexible array does not occur last in the structure, which
will help us prevent some kind of undefined behavior bugs from being
inadvertently introduced[3] to the codebase from now on.
Also, notice that, dynamic memory allocations won't be affected by
this change:
"Flexible array members have incomplete type, and so the sizeof operator
may not be applied. As a quirk of the original implementation of
zero-length arrays, sizeof evaluates to zero."[1]
This issue was found with the help of Coccinelle.
[1] https://gcc.gnu.org/onlinedocs/gcc/Zero-Length.html
[2] https://github.com/KSPP/linux/issues/21
[3] commit
76497732932f ("cxgb3/l2t: Fix undefined behaviour")
Signed-off-by: Gustavo A. R. Silva <gustavo@embeddedor.com>
Gustavo A. R. Silva [Mon, 23 Mar 2020 23:00:04 +0000 (18:00 -0500)]
ihex.h: Replace zero-length array with flexible-array member
The current codebase makes use of the zero-length array language
extension to the C90 standard, but the preferred mechanism to declare
variable-length types such as these ones is a flexible array member[1][2],
introduced in C99:
struct foo {
int stuff;
struct boo array[];
};
By making use of the mechanism above, we will get a compiler warning
in case the flexible array does not occur last in the structure, which
will help us prevent some kind of undefined behavior bugs from being
inadvertently introduced[3] to the codebase from now on.
Also, notice that, dynamic memory allocations won't be affected by
this change:
"Flexible array members have incomplete type, and so the sizeof operator
may not be applied. As a quirk of the original implementation of
zero-length arrays, sizeof evaluates to zero."[1]
This issue was found with the help of Coccinelle.
[1] https://gcc.gnu.org/onlinedocs/gcc/Zero-Length.html
[2] https://github.com/KSPP/linux/issues/21
[3] commit
76497732932f ("cxgb3/l2t: Fix undefined behaviour")
Signed-off-by: Gustavo A. R. Silva <gustavo@embeddedor.com>
Gustavo A. R. Silva [Mon, 23 Mar 2020 22:59:00 +0000 (17:59 -0500)]
igmp.h: Replace zero-length array with flexible-array member
The current codebase makes use of the zero-length array language
extension to the C90 standard, but the preferred mechanism to declare
variable-length types such as these ones is a flexible array member[1][2],
introduced in C99:
struct foo {
int stuff;
struct boo array[];
};
By making use of the mechanism above, we will get a compiler warning
in case the flexible array does not occur last in the structure, which
will help us prevent some kind of undefined behavior bugs from being
inadvertently introduced[3] to the codebase from now on.
Also, notice that, dynamic memory allocations won't be affected by
this change:
"Flexible array members have incomplete type, and so the sizeof operator
may not be applied. As a quirk of the original implementation of
zero-length arrays, sizeof evaluates to zero."[1]
This issue was found with the help of Coccinelle.
[1] https://gcc.gnu.org/onlinedocs/gcc/Zero-Length.html
[2] https://github.com/KSPP/linux/issues/21
[3] commit
76497732932f ("cxgb3/l2t: Fix undefined behaviour")
Signed-off-by: Gustavo A. R. Silva <gustavo@embeddedor.com>
Gustavo A. R. Silva [Mon, 23 Mar 2020 22:43:59 +0000 (17:43 -0500)]
genalloc.h: Replace zero-length array with flexible-array member
The current codebase makes use of the zero-length array language
extension to the C90 standard, but the preferred mechanism to declare
variable-length types such as these ones is a flexible array member[1][2],
introduced in C99:
struct foo {
int stuff;
struct boo array[];
};
By making use of the mechanism above, we will get a compiler warning
in case the flexible array does not occur last in the structure, which
will help us prevent some kind of undefined behavior bugs from being
inadvertently introduced[3] to the codebase from now on.
Also, notice that, dynamic memory allocations won't be affected by
this change:
"Flexible array members have incomplete type, and so the sizeof operator
may not be applied. As a quirk of the original implementation of
zero-length arrays, sizeof evaluates to zero."[1]
This issue was found with the help of Coccinelle.
[1] https://gcc.gnu.org/onlinedocs/gcc/Zero-Length.html
[2] https://github.com/KSPP/linux/issues/21
[3] commit
76497732932f ("cxgb3/l2t: Fix undefined behaviour")
Signed-off-by: Gustavo A. R. Silva <gustavo@embeddedor.com>
Gustavo A. R. Silva [Mon, 23 Mar 2020 22:24:53 +0000 (17:24 -0500)]
ethtool.h: Replace zero-length array with flexible-array member
The current codebase makes use of the zero-length array language
extension to the C90 standard, but the preferred mechanism to declare
variable-length types such as these ones is a flexible array member[1][2],
introduced in C99:
struct foo {
int stuff;
struct boo array[];
};
By making use of the mechanism above, we will get a compiler warning
in case the flexible array does not occur last in the structure, which
will help us prevent some kind of undefined behavior bugs from being
inadvertently introduced[3] to the codebase from now on.
Also, notice that, dynamic memory allocations won't be affected by
this change:
"Flexible array members have incomplete type, and so the sizeof operator
may not be applied. As a quirk of the original implementation of
zero-length arrays, sizeof evaluates to zero."[1]
This issue was found with the help of Coccinelle.
[1] https://gcc.gnu.org/onlinedocs/gcc/Zero-Length.html
[2] https://github.com/KSPP/linux/issues/21
[3] commit
76497732932f ("cxgb3/l2t: Fix undefined behaviour")
Signed-off-by: Gustavo A. R. Silva <gustavo@embeddedor.com>
Gustavo A. R. Silva [Mon, 23 Mar 2020 22:23:01 +0000 (17:23 -0500)]
energy_model.h: Replace zero-length array with flexible-array member
The current codebase makes use of the zero-length array language
extension to the C90 standard, but the preferred mechanism to declare
variable-length types such as these ones is a flexible array member[1][2],
introduced in C99:
struct foo {
int stuff;
struct boo array[];
};
By making use of the mechanism above, we will get a compiler warning
in case the flexible array does not occur last in the structure, which
will help us prevent some kind of undefined behavior bugs from being
inadvertently introduced[3] to the codebase from now on.
Also, notice that, dynamic memory allocations won't be affected by
this change:
"Flexible array members have incomplete type, and so the sizeof operator
may not be applied. As a quirk of the original implementation of
zero-length arrays, sizeof evaluates to zero."[1]
This issue was found with the help of Coccinelle.
[1] https://gcc.gnu.org/onlinedocs/gcc/Zero-Length.html
[2] https://github.com/KSPP/linux/issues/21
[3] commit
76497732932f ("cxgb3/l2t: Fix undefined behaviour")
Signed-off-by: Gustavo A. R. Silva <gustavo@embeddedor.com>
Gustavo A. R. Silva [Mon, 23 Mar 2020 22:21:19 +0000 (17:21 -0500)]
enclosure.h: Replace zero-length array with flexible-array member
The current codebase makes use of the zero-length array language
extension to the C90 standard, but the preferred mechanism to declare
variable-length types such as these ones is a flexible array member[1][2],
introduced in C99:
struct foo {
int stuff;
struct boo array[];
};
By making use of the mechanism above, we will get a compiler warning
in case the flexible array does not occur last in the structure, which
will help us prevent some kind of undefined behavior bugs from being
inadvertently introduced[3] to the codebase from now on.
Also, notice that, dynamic memory allocations won't be affected by
this change:
"Flexible array members have incomplete type, and so the sizeof operator
may not be applied. As a quirk of the original implementation of
zero-length arrays, sizeof evaluates to zero."[1]
This issue was found with the help of Coccinelle.
[1] https://gcc.gnu.org/onlinedocs/gcc/Zero-Length.html
[2] https://github.com/KSPP/linux/issues/21
[3] commit
76497732932f ("cxgb3/l2t: Fix undefined behaviour")
Signed-off-by: Gustavo A. R. Silva <gustavo@embeddedor.com>
Gustavo A. R. Silva [Mon, 23 Mar 2020 22:17:52 +0000 (17:17 -0500)]
dirent.h: Replace zero-length array with flexible-array member
The current codebase makes use of the zero-length array language
extension to the C90 standard, but the preferred mechanism to declare
variable-length types such as these ones is a flexible array member[1][2],
introduced in C99:
struct foo {
int stuff;
struct boo array[];
};
By making use of the mechanism above, we will get a compiler warning
in case the flexible array does not occur last in the structure, which
will help us prevent some kind of undefined behavior bugs from being
inadvertently introduced[3] to the codebase from now on.
Also, notice that, dynamic memory allocations won't be affected by
this change:
"Flexible array members have incomplete type, and so the sizeof operator
may not be applied. As a quirk of the original implementation of
zero-length arrays, sizeof evaluates to zero."[1]
This issue was found with the help of Coccinelle.
[1] https://gcc.gnu.org/onlinedocs/gcc/Zero-Length.html
[2] https://github.com/KSPP/linux/issues/21
[3] commit
76497732932f ("cxgb3/l2t: Fix undefined behaviour")
Signed-off-by: Gustavo A. R. Silva <gustavo@embeddedor.com>
Gustavo A. R. Silva [Mon, 23 Mar 2020 22:03:49 +0000 (17:03 -0500)]
digsig.h: Replace zero-length array with flexible-array member
The current codebase makes use of the zero-length array language
extension to the C90 standard, but the preferred mechanism to declare
variable-length types such as these ones is a flexible array member[1][2],
introduced in C99:
struct foo {
int stuff;
struct boo array[];
};
By making use of the mechanism above, we will get a compiler warning
in case the flexible array does not occur last in the structure, which
will help us prevent some kind of undefined behavior bugs from being
inadvertently introduced[3] to the codebase from now on.
Also, notice that, dynamic memory allocations won't be affected by
this change:
"Flexible array members have incomplete type, and so the sizeof operator
may not be applied. As a quirk of the original implementation of
zero-length arrays, sizeof evaluates to zero."[1]
This issue was found with the help of Coccinelle.
[1] https://gcc.gnu.org/onlinedocs/gcc/Zero-Length.html
[2] https://github.com/KSPP/linux/issues/21
[3] commit
76497732932f ("cxgb3/l2t: Fix undefined behaviour")
Signed-off-by: Gustavo A. R. Silva <gustavo@embeddedor.com>
Gustavo A. R. Silva [Mon, 23 Mar 2020 21:48:10 +0000 (16:48 -0500)]
can: dev: peak_canfd.h: Replace zero-length array with flexible-array member
The current codebase makes use of the zero-length array language
extension to the C90 standard, but the preferred mechanism to declare
variable-length types such as these ones is a flexible array member[1][2],
introduced in C99:
struct foo {
int stuff;
struct boo array[];
};
By making use of the mechanism above, we will get a compiler warning
in case the flexible array does not occur last in the structure, which
will help us prevent some kind of undefined behavior bugs from being
inadvertently introduced[3] to the codebase from now on.
Also, notice that, dynamic memory allocations won't be affected by
this change:
"Flexible array members have incomplete type, and so the sizeof operator
may not be applied. As a quirk of the original implementation of
zero-length arrays, sizeof evaluates to zero."[1]
This issue was found with the help of Coccinelle.
[1] https://gcc.gnu.org/onlinedocs/gcc/Zero-Length.html
[2] https://github.com/KSPP/linux/issues/21
[3] commit
76497732932f ("cxgb3/l2t: Fix undefined behaviour")
Signed-off-by: Gustavo A. R. Silva <gustavo@embeddedor.com>
Gustavo A. R. Silva [Mon, 23 Mar 2020 21:45:36 +0000 (16:45 -0500)]
blk_types: Replace zero-length array with flexible-array member
The current codebase makes use of the zero-length array language
extension to the C90 standard, but the preferred mechanism to declare
variable-length types such as these ones is a flexible array member[1][2],
introduced in C99:
struct foo {
int stuff;
struct boo array[];
};
By making use of the mechanism above, we will get a compiler warning
in case the flexible array does not occur last in the structure, which
will help us prevent some kind of undefined behavior bugs from being
inadvertently introduced[3] to the codebase from now on.
Also, notice that, dynamic memory allocations won't be affected by
this change:
"Flexible array members have incomplete type, and so the sizeof operator
may not be applied. As a quirk of the original implementation of
zero-length arrays, sizeof evaluates to zero."[1]
This issue was found with the help of Coccinelle.
[1] https://gcc.gnu.org/onlinedocs/gcc/Zero-Length.html
[2] https://github.com/KSPP/linux/issues/21
[3] commit
76497732932f ("cxgb3/l2t: Fix undefined behaviour")
Signed-off-by: Gustavo A. R. Silva <gustavo@embeddedor.com>
Gustavo A. R. Silva [Mon, 23 Mar 2020 21:43:39 +0000 (16:43 -0500)]
blk-mq: Replace zero-length array with flexible-array member
The current codebase makes use of the zero-length array language
extension to the C90 standard, but the preferred mechanism to declare
variable-length types such as these ones is a flexible array member[1][2],
introduced in C99:
struct foo {
int stuff;
struct boo array[];
};
By making use of the mechanism above, we will get a compiler warning
in case the flexible array does not occur last in the structure, which
will help us prevent some kind of undefined behavior bugs from being
inadvertently introduced[3] to the codebase from now on.
Also, notice that, dynamic memory allocations won't be affected by
this change:
"Flexible array members have incomplete type, and so the sizeof operator
may not be applied. As a quirk of the original implementation of
zero-length arrays, sizeof evaluates to zero."[1]
This issue was found with the help of Coccinelle.
[1] https://gcc.gnu.org/onlinedocs/gcc/Zero-Length.html
[2] https://github.com/KSPP/linux/issues/21
[3] commit
76497732932f ("cxgb3/l2t: Fix undefined behaviour")
Signed-off-by: Gustavo A. R. Silva <gustavo@embeddedor.com>
Gustavo A. R. Silva [Mon, 23 Mar 2020 21:40:21 +0000 (16:40 -0500)]
bio: Replace zero-length array with flexible-array member
The current codebase makes use of the zero-length array language
extension to the C90 standard, but the preferred mechanism to declare
variable-length types such as these ones is a flexible array member[1][2],
introduced in C99:
struct foo {
int stuff;
struct boo array[];
};
By making use of the mechanism above, we will get a compiler warning
in case the flexible array does not occur last in the structure, which
will help us prevent some kind of undefined behavior bugs from being
inadvertently introduced[3] to the codebase from now on.
Also, notice that, dynamic memory allocations won't be affected by
this change:
"Flexible array members have incomplete type, and so the sizeof operator
may not be applied. As a quirk of the original implementation of
zero-length arrays, sizeof evaluates to zero."[1]
This issue was found with the help of Coccinelle.
[1] https://gcc.gnu.org/onlinedocs/gcc/Zero-Length.html
[2] https://github.com/KSPP/linux/issues/21
[3] commit
76497732932f ("cxgb3/l2t: Fix undefined behaviour")
Signed-off-by: Gustavo A. R. Silva <gustavo@embeddedor.com>
Linus Torvalds [Sat, 18 Apr 2020 20:28:09 +0000 (13:28 -0700)]
Merge tag 'hwmon-for-v5.7-rc2' of git://git./linux/kernel/git/groeck/linux-staging
Pull hwmon fixes from Guenter Roeck:
- Fix up chip IDs (isl68137)
- error handling for invalid temperatures and use true module name
(drivetemp)
- Fix static symbol warnings (k10temp)
- Use valid hwmon device name (jc42)
* tag 'hwmon-for-v5.7-rc2' of git://git.kernel.org/pub/scm/linux/kernel/git/groeck/linux-staging:
hwmon: (jc42) Fix name to have no illegal characters
hwmon: (k10temp) make some symbols static
hwmon: (drivetemp) Return -ENODATA for invalid temperatures
hwmon: (drivetemp) Use drivetemp's true module name in Kconfig section
hwmon: (pmbus/isl68137) Fix up chip IDs
Linus Torvalds [Sat, 18 Apr 2020 18:46:39 +0000 (11:46 -0700)]
Merge tag 'xfs-5.7-fixes-3' of git://git./fs/xfs/xfs-linux
Pull xfs fixes from Darrick Wong:
"The three commits here fix some livelocks and other clashes with
fsfreeze, a potential corruption problem, and a minor race between
processes freeing and allocating space when the filesystem is near
ENOSPC.
Summary:
- Fix a partially uninitialized variable.
- Teach the background gc threads to apply for fsfreeze protection.
- Fix some scaling problems when multiple threads try to flush the
filesystem when we're about to hit ENOSPC"
* tag 'xfs-5.7-fixes-3' of git://git.kernel.org/pub/scm/fs/xfs/xfs-linux:
xfs: move inode flush to the sync workqueue
xfs: fix partially uninitialized structure in xfs_reflink_remap_extent
xfs: acquire superblock freeze protection on eofblocks scans
Linus Torvalds [Sat, 18 Apr 2020 18:38:51 +0000 (11:38 -0700)]
Merge tag 'for-linus-2020-04-18' of git://git./linux/kernel/git/brauner/linux
Pull thread fixes from Christian Brauner:
"A few fixes and minor improvements:
- Correctly validate the cgroup file descriptor when clone3() is used
with CLONE_INTO_CGROUP.
- Check that a new enough version of struct clone_args is passed
which supports the cgroup file descriptor argument when
CLONE_INTO_CGROUP is set in the flags argument.
- Catch nonsensical struct clone_args layouts at build time.
- Catch extensions of struct clone_args without updating the uapi
visible size definitions at build time.
- Check whether the signal is valid early in kill_pid_usb_asyncio()
before doing further work.
- Replace open-coded rcu_read_lock()+kill_pid_info()+rcu_read_unlock()
sequence in kill_something_info() with kill_proc_info() which is a
dedicated helper to do just that"
* tag 'for-linus-2020-04-18' of git://git.kernel.org/pub/scm/linux/kernel/git/brauner/linux:
clone3: add build-time CLONE_ARGS_SIZE_VER* validity checks
clone3: add a check for the user struct size if CLONE_INTO_CGROUP is set
clone3: fix cgroup argument sanity check
signal: use kill_proc_info instead of kill_pid_info in kill_something_info
signal: check sig before setting info in kill_pid_usb_asyncio
Linus Torvalds [Sat, 18 Apr 2020 18:33:03 +0000 (11:33 -0700)]
Merge branch 'i2c/for-current' of git://git./linux/kernel/git/wsa/linux
Pull i2c fixes from Wolfram Sang:
"Some driver bugfixes and an old API removal now that all users are
gone"
* 'i2c/for-current' of git://git.kernel.org/pub/scm/linux/kernel/git/wsa/linux:
i2c: tegra: Synchronize DMA before termination
i2c: tegra: Better handle case where CPU0 is busy for a long time
i2c: remove i2c_new_probed_device API
i2c: altera: use proper variable to hold errno
i2c: designware: platdrv: Remove DPM_FLAG_SMART_SUSPEND flag on BYT and CHT
Linus Torvalds [Sat, 18 Apr 2020 18:25:58 +0000 (11:25 -0700)]
Merge tag 'drm-fixes-2020-04-18' of git://anongit.freedesktop.org/drm/drm
Pull drm fixes from Dave Airlie:
"Quiet enough for rc2, mostly amdgpu fixes, a couple of i915 fixes, and
one nouveau module firmware fix:
i915:
- Fix guest page access by using the brand new VFIO dma r/w interface (Yan)
- Fix for i915 perf read buffers (Ashutosh)
amdgpu:
- gfx10 fix
- SMU7 overclocking fix
- RAS fix
- GPU reset fix
- Fix a regression in a previous suspend/resume fix
- Add a gfxoff quirk
nouveau:
- fix missing MODULE_FIRMWARE"
* tag 'drm-fixes-2020-04-18' of git://anongit.freedesktop.org/drm/drm:
drm/nouveau/sec2/gv100-: add missing MODULE_FIRMWARE()
drm/amdgpu/gfx9: add gfxoff quirk
drm/amdgpu: fix the hw hang during perform system reboot and reset
drm/i915/gvt: switch to user vfio_group_pin/upin_pages
drm/i915/gvt: subsitute kvm_read/write_guest with vfio_dma_rw
drm/i915/gvt: hold reference of VFIO group during opening of vgpu
drm/i915/perf: Do not clear pollin for small user read buffers
drm/amdgpu: fix wrong vram lost counter increment V2
drm/amd/powerplay: unload mp1 for Arcturus RAS baco reset
drm/amd/powerplay: force the trim of the mclk dpm_levels if OD is enabled
Revert "drm/amdgpu: change SH MEM alignment mode for gfx10"
Sascha Hauer [Fri, 17 Apr 2020 09:28:53 +0000 (11:28 +0200)]
hwmon: (jc42) Fix name to have no illegal characters
The jc42 driver passes I2C client's name as hwmon device name. In case
of device tree probed devices this ends up being part of the compatible
string, "jc-42.4-temp". This name contains hyphens and the hwmon core
doesn't like this:
jc42 2-0018: hwmon: 'jc-42.4-temp' is not a valid name attribute, please fix
This changes the name to "jc42" which doesn't have any illegal
characters.
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
Link: https://lore.kernel.org/r/20200417092853.31206-1-s.hauer@pengutronix.de
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
Tony Luck [Thu, 16 Apr 2020 20:57:54 +0000 (13:57 -0700)]
x86/split_lock: Add Tremont family CPU models
Tremont CPUs support IA32_CORE_CAPABILITIES bits to indicate whether
specific SKUs have support for split lock detection.
Signed-off-by: Tony Luck <tony.luck@intel.com>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Link: https://lkml.kernel.org/r/20200416205754.21177-4-tony.luck@intel.com
Tony Luck [Thu, 16 Apr 2020 20:57:53 +0000 (13:57 -0700)]
x86/split_lock: Bits in IA32_CORE_CAPABILITIES are not architectural
The Intel Software Developers' Manual erroneously listed bit 5 of the
IA32_CORE_CAPABILITIES register as an architectural feature. It is not.
Features enumerated by IA32_CORE_CAPABILITIES are model specific and
implementation details may vary in different cpu models. Thus it is only
safe to trust features after checking the CPU model.
Icelake client and server models are known to implement the split lock
detect feature even though they don't enumerate IA32_CORE_CAPABILITIES
[ tglx: Use switch() for readability and massage comments ]
Fixes:
6650cdd9a8cc ("x86/split_lock: Enable split lock detection by kernel")
Signed-off-by: Tony Luck <tony.luck@intel.com>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Link: https://lkml.kernel.org/r/20200416205754.21177-3-tony.luck@intel.com
Linus Torvalds [Fri, 17 Apr 2020 20:10:50 +0000 (13:10 -0700)]
Merge tag 'docs-fixes' of git://git.lwn.net/linux
Pull documentation fixes from Jonathan Corbet:
"A handful of fixes for reasonably obnoxious documentation issues"
* tag 'docs-fixes' of git://git.lwn.net/linux:
scripts: documentation-file-ref-check: Add line break before exit
scripts/kernel-doc: Add missing close-paren in c:function directives
docs: admin-guide: merge sections for the kernel.modprobe sysctl
docs: timekeeping: Use correct prototype for deprecated functions
Linus Torvalds [Fri, 17 Apr 2020 19:05:01 +0000 (12:05 -0700)]
Merge branch 'for-linus' of git://git./linux/kernel/git/ebiederm/user-namespace
Pull proc fix from Eric Biederman:
"While running syzbot happened to spot one more oversight in my rework
of proc_flush_task.
The fields proc_self and proc_thread_self were not being reinitialized
when proc was unmounted, which could cause problems if the mount of
proc fails"
* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/ebiederm/user-namespace:
proc: Handle umounts cleanly
Linus Torvalds [Fri, 17 Apr 2020 18:52:20 +0000 (11:52 -0700)]
Merge tag 'mtd/fixes-for-5.7-rc2' of git://git./linux/kernel/git/mtd/linux
Pull mtd fix from Richard Weinberger:
"spi-nor: fix for missing directory after code refactoring"
* tag 'mtd/fixes-for-5.7-rc2' of git://git.kernel.org/pub/scm/linux/kernel/git/mtd/linux:
mtd: spi-nor: Compile files in controllers/ directory
Linus Torvalds [Fri, 17 Apr 2020 18:40:08 +0000 (11:40 -0700)]
Merge tag 'linux-watchdog-5.7-rc2' of git://linux-watchdog.org/linux-watchdog
Pull watchdog fix from Wim Van Sebroeck:
"Fix restart handler in sp805 driver"
* tag 'linux-watchdog-5.7-rc2' of git://www.linux-watchdog.org/linux-watchdog:
watchdog: sp805: fix restart handler
Linus Torvalds [Fri, 17 Apr 2020 18:35:20 +0000 (11:35 -0700)]
Merge tag 'devicetree-fixes-for-5.7' of git://git./linux/kernel/git/robh/linux
Pull devicetree fixes from Rob Herring:
- Fix warnings from enabling more dtc warnings which landed in the
merge window and didn't get fixed in time.
- Fix some document references from DT schema conversions
- Fix kmemleak errors in DT unittests
* tag 'devicetree-fixes-for-5.7' of git://git.kernel.org/pub/scm/linux/kernel/git/robh/linux: (23 commits)
kbuild: check libyaml installation for 'make dt_binding_check'
of: unittest: kmemleak in duplicate property update
of: overlay: kmemleak in dup_and_fixup_symbol_prop()
of: unittest: kmemleak in of_unittest_overlay_high_level()
of: unittest: kmemleak in of_unittest_platform_populate()
of: unittest: kmemleak on changeset destroy
MAINTAINERS: dt: fix pointers for ARM Integrator, Versatile and RealView
MAINTAINERS: dt: update display/allwinner file entry
dt-bindings: iio: dac: AD5570R fix bindings errors
dt-bindings: Fix misspellings of "Analog Devices"
dt-bindings: pwm: Fix cros-ec-pwm example dtc 'reg' warning
docs: dt: rockchip,dwc3.txt: fix a pointer to a renamed file
docs: dt: fix a broken reference for a file converted to json
docs: dt: qcom,dwc3.txt: fix cross-reference for a converted file
docs: dt: fix broken reference to phy-cadence-torrent.yaml
dt-bindings: interrupt-controller: Fix loongson,parent_int_map property schema
dt-bindings: hwmon: Fix incorrect $id paths
dt-bindings: Fix dtc warnings on reg and ranges in examples
dt-bindings: BD718x7 - add missing I2C bus properties
dt-bindings: clock: syscon-icst: Remove unneeded unit name
...
Linus Torvalds [Fri, 17 Apr 2020 17:39:43 +0000 (10:39 -0700)]
Merge tag 'arm64-fixes' of git://git./linux/kernel/git/arm64/linux
Pull arm64 fixes from Catalin Marinas:
- Remove vdso code trying to free unallocated pages.
- Delete the space separator in the __emit_inst macro as it breaks the
clang integrated assembler.
* tag 'arm64-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux:
arm64: Delete the space separator in __emit_inst
arm64: vdso: don't free unallocated pages
Linus Torvalds [Fri, 17 Apr 2020 17:35:17 +0000 (10:35 -0700)]
Merge tag 'for-linus-5.7-rc2-tag' of git://git./linux/kernel/git/xen/tip
Pull xen update from Juergen Gross:
- a small cleanup patch
- a security fix for a bug in the Xen hypervisor to avoid enabling Xen
guests to crash dom0 on an unfixed hypervisor.
* tag 'for-linus-5.7-rc2-tag' of git://git.kernel.org/pub/scm/linux/kernel/git/xen/tip:
arm/xen: make _xen_start_info static
xen/xenbus: ensure xenbus_map_ring_valloc() returns proper grant status
James Morse [Fri, 21 Feb 2020 16:21:05 +0000 (16:21 +0000)]
x86/resctrl: Preserve CDP enable over CPU hotplug
Resctrl assumes that all CPUs are online when the filesystem is mounted,
and that CPUs remember their CDP-enabled state over CPU hotplug.
This goes wrong when resctrl's CDP-enabled state changes while all the
CPUs in a domain are offline.
When a domain comes online, enable (or disable!) CDP to match resctrl's
current setting.
Fixes:
5ff193fbde20 ("x86/intel_rdt: Add basic resctrl filesystem support")
Suggested-by: Reinette Chatre <reinette.chatre@intel.com>
Signed-off-by: James Morse <james.morse@arm.com>
Signed-off-by: Borislav Petkov <bp@suse.de>
Cc: <stable@vger.kernel.org>
Link: https://lkml.kernel.org/r/20200221162105.154163-1-james.morse@arm.com
Linus Torvalds [Fri, 17 Apr 2020 17:12:26 +0000 (10:12 -0700)]
Merge tag 'io_uring-5.7-2020-04-17' of git://git.kernel.dk/linux-block
Pull io_uring fixes from Jens Axboe:
- wrap up the init/setup cleanup (Pavel)
- fix some issues around deferral sequences (Pavel)
- fix splice punt check using the wrong struct file member
- apply poll re-arm logic for pollable retry too
- pollable retry should honor cancelation
- fix setup time error handling syzbot reported crash
- restore work state when poll is canceled
* tag 'io_uring-5.7-2020-04-17' of git://git.kernel.dk/linux-block:
io_uring: don't count rqs failed after current one
io_uring: kill already cached timeout.seq_offset
io_uring: fix cached_sq_head in io_timeout()
io_uring: only post events in io_poll_remove_all() if we completed some
io_uring: io_async_task_func() should check and honor cancelation
io_uring: check for need to re-wait in polled async handling
io_uring: correct O_NONBLOCK check for splice punt
io_uring: restore req->work when canceling poll request
io_uring: move all request init code in one place
io_uring: keep all sqe->flags in req->flags
io_uring: early submission req fail code
io_uring: track mm through current->mm
io_uring: remove obsolete @mm_fault
Linus Torvalds [Fri, 17 Apr 2020 17:08:08 +0000 (10:08 -0700)]
Merge tag 'block-5.7-2020-04-17' of git://git.kernel.dk/linux-block
Pull block fixes from Jens Axboe:
- Fix for a driver tag leak in error handling (John)
- Remove now defunct Kconfig selection from dasd (Stefan)
- blk-wbt trace fiexs (Tommi)
* tag 'block-5.7-2020-04-17' of git://git.kernel.dk/linux-block:
blk-wbt: Drop needless newlines from tracepoint format strings
blk-wbt: Use tracepoint_string() for wbt_step tracepoint string literals
s390/dasd: remove IOSCHED_DEADLINE from DASD Kconfig
blk-mq: Put driver tag in blk_mq_dispatch_rq_list() when no budget
Linus Torvalds [Fri, 17 Apr 2020 17:06:16 +0000 (10:06 -0700)]
Merge tag 'libata-5.7-2020-04-17' of git://git.kernel.dk/linux-block
Pull libata fixlet from Jens Axboe:
"Add yet another Comet Lake PCI ID for ahci"
* tag 'libata-5.7-2020-04-17' of git://git.kernel.dk/linux-block:
ahci: Add Intel Comet Lake PCH-U PCI ID
Linus Torvalds [Fri, 17 Apr 2020 17:00:33 +0000 (10:00 -0700)]
Merge tag 'for-5.7-rc1-tag' of git://git./linux/kernel/git/kdave/linux
Pull btrfs fix from David Sterba:
"A regression fix for a warning caused by running balance and snapshot
creation in parallel"
* tag 'for-5.7-rc1-tag' of git://git.kernel.org/pub/scm/linux/kernel/git/kdave/linux:
btrfs: fix setting last_trans for reloc roots
Linus Torvalds [Fri, 17 Apr 2020 16:56:28 +0000 (09:56 -0700)]
Merge tag 'pm-5.7-rc2' of git://git./linux/kernel/git/rafael/linux-pm
Pull power management update from Rafael Wysocki:
"Allow the operating performance points (OPP) core to be used in the
case when the same driver is used on different platforms, some of
which have an OPP table and some of which have a clock node (Rajendra
Nayak)"
* tag 'pm-5.7-rc2' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm:
opp: Manage empty OPP tables with clk handle
Linus Torvalds [Fri, 17 Apr 2020 16:48:50 +0000 (09:48 -0700)]
Merge tag 'sound-5.7-rc2' of git://git./linux/kernel/git/tiwai/sound
Pull sound fixes from Takashi Iwai:
"One significant regression fix is for HD-audio buffer preallocation.
In 5.6 it was set to non-prompt for x86 and forced to 0, but this
turned out to be problematic for some applications, hence it gets
reverted. Distros would need to restore CONFIG_SND_HDA_PREALLOC_SIZE
value to the earlier values they've used in the past.
Other than that, we've received quite a few small fixes for HD-audio
and USB-audio. Most of them are for dealing with the broken TRX40
mobos and the runtime PM without HD-audio codecs"
* tag 'sound-5.7-rc2' of git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound:
ALSA: hda: call runtime_allow() for all hda controllers
ALSA: hda: Allow setting preallocation again for x86
ALSA: hda: Explicitly permit using autosuspend if runtime PM is supported
ALSA: hda: Skip controller resume if not needed
ALSA: hda: Keep the controller initialization even if no codecs found
ALSA: hda: Release resources at error in delayed probe
ALSA: hda: Honor PM disablement in PM freeze and thaw_noirq ops
ALSA: hda: Don't release card at firmware loading error
ALSA: usb-audio: Check mapping at creating connector controls, too
ALSA: usb-audio: Don't create jack controls for PCM terminals
ALSA: usb-audio: Don't override ignore_ctl_error value from the map
ALSA: usb-audio: Filter error from connector kctl ops, too
ALSA: hda/realtek - Enable the headset mic on Asus FX505DT
ALSA: ctxfi: Remove unnecessary cast in kfree
Masahiro Yamada [Fri, 17 Apr 2020 04:04:55 +0000 (13:04 +0900)]
kbuild: check libyaml installation for 'make dt_binding_check'
If you run 'make dtbs_check' without installing the libyaml package,
the error message "dtc needs libyaml ..." is shown.
This should be checked also for 'make dt_binding_check' because dtc
needs to validate *.example.dts extracted from *.yaml files.
It is missing since commit
4f0e3a57d6eb ("kbuild: Add support for DT
binding schema checks"), but this fix-up is applicable only after commit
e10c4321dc1e ("kbuild: allow to run dt_binding_check and dtbs_check
in a single command").
I gave the Fixes tag to the latter in case somebody is interested in
back-porting this.
Fixes:
e10c4321dc1e ("kbuild: allow to run dt_binding_check and dtbs_check in a single command")
Signed-off-by: Masahiro Yamada <masahiroy@kernel.org>
Signed-off-by: Rob Herring <robh@kernel.org>
Reinette Chatre [Tue, 17 Mar 2020 16:26:45 +0000 (09:26 -0700)]
x86/resctrl: Fix invalid attempt at removing the default resource group
The default resource group ("rdtgroup_default") is associated with the
root of the resctrl filesystem and should never be removed. New resource
groups can be created as subdirectories of the resctrl filesystem and
they can be removed from user space.
There exists a safeguard in the directory removal code
(rdtgroup_rmdir()) that ensures that only subdirectories can be removed
by testing that the directory to be removed has to be a child of the
root directory.
A possible deadlock was recently fixed with
334b0f4e9b1b ("x86/resctrl: Fix a deadlock due to inaccurate reference").
This fix involved associating the private data of the "mon_groups"
and "mon_data" directories to the resource group to which they belong
instead of NULL as before. A consequence of this change was that
the original safeguard code preventing removal of "mon_groups" and
"mon_data" found in the root directory failed resulting in attempts to
remove the default resource group that ends in a BUG:
kernel BUG at mm/slub.c:3969!
invalid opcode: 0000 [#1] SMP PTI
Call Trace:
rdtgroup_rmdir+0x16b/0x2c0
kernfs_iop_rmdir+0x5c/0x90
vfs_rmdir+0x7a/0x160
do_rmdir+0x17d/0x1e0
do_syscall_64+0x55/0x1d0
entry_SYSCALL_64_after_hwframe+0x44/0xa9
Fix this by improving the directory removal safeguard to ensure that
subdirectories of the resctrl root directory can only be removed if they
are a child of the resctrl filesystem's root _and_ not associated with
the default resource group.
Fixes:
334b0f4e9b1b ("x86/resctrl: Fix a deadlock due to inaccurate reference")
Reported-by: Sai Praneeth Prakhya <sai.praneeth.prakhya@intel.com>
Signed-off-by: Reinette Chatre <reinette.chatre@intel.com>
Signed-off-by: Borislav Petkov <bp@suse.de>
Tested-by: Sai Praneeth Prakhya <sai.praneeth.prakhya@intel.com>
Cc: stable@vger.kernel.org
Link: https://lkml.kernel.org/r/884cbe1773496b5dbec1b6bd11bb50cffa83603d.1584461853.git.reinette.chatre@intel.com
Tommi Rantala [Fri, 17 Apr 2020 13:00:23 +0000 (16:00 +0300)]
blk-wbt: Drop needless newlines from tracepoint format strings
Drop needless newlines from tracepoint format strings, they only add
empty lines to perf tracing output.
Signed-off-by: Tommi Rantala <tommi.t.rantala@nokia.com>
Signed-off-by: Jens Axboe <axboe@kernel.dk>
Tommi Rantala [Fri, 17 Apr 2020 13:00:22 +0000 (16:00 +0300)]
blk-wbt: Use tracepoint_string() for wbt_step tracepoint string literals
Use tracepoint_string() for string literals that are used in the
wbt_step tracepoint, so that userspace tools can display the string
content.
Signed-off-by: Tommi Rantala <tommi.t.rantala@nokia.com>
Signed-off-by: Jens Axboe <axboe@kernel.dk>
Stefan Haberland [Fri, 17 Apr 2020 09:48:35 +0000 (11:48 +0200)]
s390/dasd: remove IOSCHED_DEADLINE from DASD Kconfig
CONFIG_IOSCHED_DEADLINE was removed with
commit
f382fb0bcef4 ("block: remove legacy IO schedulers")
and setting of the scheduler was removed with
commit
a5fd8ddce2af ("s390/dasd: remove setting of scheduler from driver").
So get rid of the select.
Reported-by: Krzysztof Kozlowski <krzk@kernel.org>
Signed-off-by: Stefan Haberland <sth@linux.ibm.com>
Signed-off-by: Jens Axboe <axboe@kernel.dk>
Frank Rowand [Thu, 16 Apr 2020 21:42:50 +0000 (16:42 -0500)]
of: unittest: kmemleak in duplicate property update
kmemleak reports several memory leaks from devicetree unittest.
This is the fix for problem 5 of 5.
When overlay 'overlay_bad_add_dup_prop' is applied, the apply code
properly detects that a memory leak will occur if the overlay is removed
since the duplicate property is located in a base devicetree node and
reports via printk():
OF: overlay: WARNING: memory leak will occur if overlay removed, property: /testcase-data-2/substation@100/motor-1/rpm_avail
OF: overlay: WARNING: memory leak will occur if overlay removed, property: /testcase-data-2/substation@100/motor-1/rpm_avail
The overlay is removed when the apply code detects multiple changesets
modifying the same property. This is reported via printk():
OF: overlay: ERROR: multiple fragments add, update, and/or delete property /testcase-data-2/substation@100/motor-1/rpm_avail
As a result of this error, the overlay is removed resulting in the
expected memory leak.
Add another device node level to the overlay so that the duplicate
property is located in a node added by the overlay, thus no memory
leak will occur when the overlay is removed.
Thus users of kmemleak will not have to debug this leak in the future.
Fixes:
2fe0e8769df9 ("of: overlay: check prevents multiple fragments touching same property")
Reported-by: Erhard F. <erhard_f@mailbox.org>
Signed-off-by: Frank Rowand <frank.rowand@sony.com>
Signed-off-by: Rob Herring <robh@kernel.org>
Frank Rowand [Thu, 16 Apr 2020 21:42:49 +0000 (16:42 -0500)]
of: overlay: kmemleak in dup_and_fixup_symbol_prop()
kmemleak reports several memory leaks from devicetree unittest.
This is the fix for problem 4 of 5.
target_path was not freed in the non-error path.
Fixes:
e0a58f3e08d4 ("of: overlay: remove a dependency on device node full_name")
Reported-by: Erhard F. <erhard_f@mailbox.org>
Signed-off-by: Frank Rowand <frank.rowand@sony.com>
Signed-off-by: Rob Herring <robh@kernel.org>