linux/drivers/block/drbd
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
..
drbd_actlog.c treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 91 2019-05-24 17:37:53 +02:00
drbd_bitmap.c mm: remove the pgprot argument to __vmalloc 2020-06-02 10:59:11 -07:00
drbd_debugfs.c block: drbd: no need to check return value of debugfs_create functions 2019-06-20 03:28:16 -06:00
drbd_debugfs.h block: drbd: no need to check return value of debugfs_create functions 2019-06-20 03:28:16 -06:00
drbd_int.h drbd: Replace zero-length array with flexible-array 2020-06-15 23:08:31 -05:00
drbd_interval.c augmented rbtree: add new RB_DECLARE_CALLBACKS_MAX macro 2019-09-25 17:51:39 -07:00
drbd_interval.h License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
drbd_main.c tcp: add tcp_sock_set_nodelay 2020-05-28 11:11:45 -07:00
drbd_nl.c treewide: Remove uninitialized_var() usage 2020-07-16 12:35:15 -07:00
drbd_nla.c netlink: make validation more configurable for future strictness 2019-04-27 17:07:21 -04:00
drbd_nla.h License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
drbd_proc.c treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 91 2019-05-24 17:37:53 +02:00
drbd_protocol.h drbd: Replace zero-length array with flexible-array 2020-06-15 23:08:31 -05:00
drbd_receiver.c tcp: add tcp_sock_set_quickack 2020-05-28 11:11:45 -07:00
drbd_req.c drbd: use bio_{start,end}_io_acct 2020-05-27 05:21:23 -06:00
drbd_req.h treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 91 2019-05-24 17:37:53 +02:00
drbd_state_change.h License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
drbd_state.c drbd: Remove uninitialized_var() usage 2020-07-16 12:32:25 -07:00
drbd_state.h drbd: Change drbd_request_detach_interruptible's return type to int 2018-12-20 09:51:31 -07:00
drbd_strings.c treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 91 2019-05-24 17:37:53 +02:00
drbd_strings.h License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
drbd_vli.h treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 91 2019-05-24 17:37:53 +02:00
drbd_worker.c tcp: add tcp_sock_set_cork 2020-05-28 11:11:45 -07:00
Kconfig drivers/block: remove redundant 'default n' from Kconfig-s 2018-10-10 14:11:08 -06:00
Makefile License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00