Messages in this thread Patch in this message | | | From | Larry Finger <> | Subject | [PATCH] bug: Fix build error in V4.2-RC1 | Date | Sun, 12 Jul 2015 10:00:36 -0500 |
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If CONFIG_BUG is not defined, then macro __WARN is not defined. This shows as the following build error:
CC [M] drivers/media/v4l2-core/videobuf2-core.o drivers/media/v4l2-core/videobuf2-core.c: In function ‘vb2_warn_zero_bytesused’: drivers/media/v4l2-core/videobuf2-core.c:1253:2: error: implicit declaration of function ‘__WARN’ [-Werror=implicit-function-declaration] __WARN(); ^ This problem has been bisected to commit 77a3c6fd90c94f635edb00d4a65f485687538791.
Signed-off-by: Larry Finger <Larry.Finger@lwfinger.net> Cc: linux-arch@vger.kernel.org Cc: linux-kernel@vger.kernel.org --- include/asm-generic/bug.h | 1 + 1 file changed, 1 insertion(+)
diff --git a/include/asm-generic/bug.h b/include/asm-generic/bug.h index 630dd23..c1cb4b3 100644 --- a/include/asm-generic/bug.h +++ b/include/asm-generic/bug.h @@ -137,6 +137,7 @@ extern void warn_slowpath_null(const char *file, const int line); }) #else /* !CONFIG_BUG */ +#define __WARN() do {} while (1) #ifndef HAVE_ARCH_BUG #define BUG() do {} while (1) #endif -- 2.1.4
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