]> git.baikalelectronics.ru Git - kernel.git/commit
drm/i915: Disable -Wuninitialized
authorNathan Chancellor <natechancellor@gmail.com>
Sat, 26 Jan 2019 07:11:23 +0000 (00:11 -0700)
committerChris Wilson <chris@chris-wilson.co.uk>
Sat, 26 Jan 2019 17:07:58 +0000 (17:07 +0000)
commit7ad6b09f22477714433b3d75a378df94dfcde678
tree7563143d3d5083bbda6d6aecfa838ee20693c3d8
parent05ae278aefb3ccb83159d69a917af75fa9e981c1
drm/i915: Disable -Wuninitialized

This warning is disabled by default in scripts/Makefile.extrawarn when
W= is not provided but this Makefile adds -Wall after this warning is
disabled so it shows up in the build when it shouldn't:

In file included from drivers/gpu/drm/i915/intel_breadcrumbs.c:895:
drivers/gpu/drm/i915/selftests/intel_breadcrumbs.c:350:34: error:
variable 'wq' is uninitialized when used within its own initialization
[-Werror,-Wuninitialized]
        DECLARE_WAIT_QUEUE_HEAD_ONSTACK(wq);
                                        ^~
./include/linux/wait.h:74:63: note: expanded from macro
'DECLARE_WAIT_QUEUE_HEAD_ONSTACK'
        struct wait_queue_head name = __WAIT_QUEUE_HEAD_INIT_ONSTACK(name)
                               ~~~~                                  ^~~~
./include/linux/wait.h:72:33: note: expanded from macro
'__WAIT_QUEUE_HEAD_INIT_ONSTACK'
        ({ init_waitqueue_head(&name); name; })
                                       ^~~~
1 error generated.

Explicitly disable the warning like commit 7069114ea5a7 ("drm/i915:
Disable some extra clang warnings").

Link: https://github.com/ClangBuiltLinux/linux/issues/220
Suggested-by: Chris Wilson <chris@chris-wilson.co.uk>
Signed-off-by: Nathan Chancellor <natechancellor@gmail.com>
Reviewed-by: Nick Desaulniers <nick.desaulniers@gmail.com>
Reviewed-by: Nick Desaulniers <ndesaulniers@google.com>
Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Link: https://patchwork.freedesktop.org/patch/msgid/20190126071122.24557-1-natechancellor@gmail.com
drivers/gpu/drm/i915/Makefile