OpenCloudOS-Kernel/drivers/video/fbdev/matrox
Kees Cook 3f649ab728 treewide: Remove uninitialized_var() usage
Using uninitialized_var() is dangerous as it papers over real bugs[1]
(or can in the future), and suppresses unrelated compiler warnings
(e.g. "unused variable"). If the compiler thinks it is uninitialized,
either simply initialize the variable or make compiler changes.

In preparation for removing[2] the[3] macro[4], remove all remaining
needless uses with the following script:

git grep '\buninitialized_var\b' | cut -d: -f1 | sort -u | \
	xargs perl -pi -e \
		's/\buninitialized_var\(([^\)]+)\)/\1/g;
		 s:\s*/\* (GCC be quiet|to make compiler happy) \*/$::g;'

drivers/video/fbdev/riva/riva_hw.c was manually tweaked to avoid
pathological white-space.

No outstanding warnings were found building allmodconfig with GCC 9.3.0
for x86_64, i386, arm64, arm, powerpc, powerpc64le, s390x, mips, sparc64,
alpha, and m68k.

[1] https://lore.kernel.org/lkml/20200603174714.192027-1-glider@google.com/
[2] https://lore.kernel.org/lkml/CA+55aFw+Vbj0i=1TGqCR5vQkCzWJ0QxK6CernOU6eedsudAixw@mail.gmail.com/
[3] https://lore.kernel.org/lkml/CA+55aFwgbgqhbp1fkxvRKEpzyR5J8n1vKT1VZdz9knmPuXhOeg@mail.gmail.com/
[4] https://lore.kernel.org/lkml/CA+55aFz2500WfbKXAx8s67wrm9=yVJu65TpLgN_ybYNv0VEOKA@mail.gmail.com/

Reviewed-by: Leon Romanovsky <leonro@mellanox.com> # drivers/infiniband and mlx4/mlx5
Acked-by: Jason Gunthorpe <jgg@mellanox.com> # IB
Acked-by: Kalle Valo <kvalo@codeaurora.org> # wireless drivers
Reviewed-by: Chao Yu <yuchao0@huawei.com> # erofs
Signed-off-by: Kees Cook <keescook@chromium.org>
2020-07-16 12:35:15 -07:00
..
Makefile treewide: Add SPDX license identifier - Makefile/Kconfig 2019-05-21 10:50:46 +02:00
g450_pll.c video: fbdev: matroxfb: remove dead code and set but not used variable 2020-04-08 12:09:10 +02:00
g450_pll.h License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
i2c-matroxfb.c video: fbdev: matrox: convert to i2c_new_scanned_device 2019-11-28 17:19:20 +01:00
matroxfb_DAC1064.c treewide: Add SPDX license identifier for more missed files 2019-05-21 10:50:45 +02:00
matroxfb_DAC1064.h License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
matroxfb_Ti3026.c treewide: Add SPDX license identifier for more missed files 2019-05-21 10:50:45 +02:00
matroxfb_Ti3026.h License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
matroxfb_accel.c treewide: Add SPDX license identifier for more missed files 2019-05-21 10:50:45 +02:00
matroxfb_accel.h License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
matroxfb_base.c matroxfb: add Matrox MGA-G200eW board support 2020-03-02 16:32:13 +01:00
matroxfb_base.h fbdev: matrox: fix -Wextra build warnings 2020-03-20 14:29:09 +01:00
matroxfb_crtc2.c video: constify fb ops across all drivers 2019-12-05 10:57:53 +02:00
matroxfb_crtc2.h License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
matroxfb_g450.c treewide: Add SPDX license identifier for more missed files 2019-05-21 10:50:45 +02:00
matroxfb_g450.h License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
matroxfb_maven.c treewide: Remove uninitialized_var() usage 2020-07-16 12:35:15 -07:00
matroxfb_maven.h License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
matroxfb_misc.c fbdev: matrox: make array wtst_xlat static const, makes object smaller 2020-01-03 14:27:47 +01:00
matroxfb_misc.h License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00