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kernel_optimize_test/tools/virtio
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Kees Cook 63a0895d96 compiler: Remove uninitialized_var() macro 
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.

As recommended[2] by[3] Linus[4], remove the macro. With the recent
change to disable -Wmaybe-uninitialized in v5.7 in commit 78a5255ffb
("Stop the ad-hoc games with -Wno-maybe-initialized"), this is likely
the best time to make this treewide change.

[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/

Suggested-by: Linus Torvalds <torvalds@linux-foundation.org>
Reviewed-by: Bart van Assche <bvanassche@acm.org>
Reviewed-by: Miguel Ojeda <miguel.ojeda.sandonis@gmail.com>
Tested-by: Nathan Chancellor <natechancellor@gmail.com>
Tested-by: Sedat Dilek <sedat.dilek@gmail.com>
Signed-off-by: Kees Cook <keescook@chromium.org>
2020-07-16 12:35:31 -07:00
..
asm tools/virtio: make asm/barrier.h self contained 2020-04-17 06:05:29 -04:00
crypto tools/virtio: more stubs 2019-10-11 09:27:27 -04:00
generated virtio/test: fix up after IOTLB changes 2020-04-16 18:31:08 -04:00
linux compiler: Remove uninitialized_var() macro 2020-07-16 12:35:31 -07:00
ringtest treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 482 2019-06-19 17:09:52 +02:00
uapi/linux License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
vhost_test treewide: Add SPDX license identifier - Makefile/Kconfig 2019-05-21 10:50:46 +02:00
virtio-trace treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 165 2019-05-30 11:26:38 -07:00
xen tools/virtio: xen stub 2019-10-13 09:38:27 -04:00
.gitignore .gitignore: add SPDX License Identifier 2020-03-25 11:50:48 +01:00
Makefile virtio/test: fix up after IOTLB changes 2020-04-16 18:31:08 -04:00
virtio_test.c tools/virtio: Use tools/include/list.h instead of stubs 2020-06-22 12:34:22 -04:00
vringh_test.c tools/virtio: Use tools/include/list.h instead of stubs 2020-06-22 12:34:22 -04:00