https://github.com/torvalds/linux
Revision e6173ba42bbdba05fd4f3021c0beda0506271507 authored by Geert Uytterhoeven on 01 September 2016, 23:14:53 UTC, committed by Linus Torvalds on 02 September 2016, 00:52:01 UTC
Some versions of gcc don't like tests for the value of an undefined
preprocessor symbol, even in the #else branch of an #ifndef:
lib/test_hash.c:224:7: warning: "HAVE_ARCH__HASH_32" is not defined [-Wundef]
#elif HAVE_ARCH__HASH_32 != 1
^
lib/test_hash.c:229:7: warning: "HAVE_ARCH_HASH_32" is not defined [-Wundef]
#elif HAVE_ARCH_HASH_32 != 1
^
lib/test_hash.c:234:7: warning: "HAVE_ARCH_HASH_64" is not defined [-Wundef]
#elif HAVE_ARCH_HASH_64 != 1
^
Seen with gcc 4.9, not seen with 4.1.2.
Change the logic to only check the value inside an #ifdef to fix this.
Fixes: 468a9428521e7d00 ("<linux/hash.h>: Add support for architecture-specific functions")
Link: http://lkml.kernel.org/r/20160829214952.1334674-4-arnd@arndb.de
Signed-off-by: Geert Uytterhoeven <geert@linux-m68k.org>
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Acked-by: George Spelvin <linux@sciencehorizons.net>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
1 parent ed76b7a
Tip revision: e6173ba42bbdba05fd4f3021c0beda0506271507 authored by Geert Uytterhoeven on 01 September 2016, 23:14:53 UTC
lib/test_hash.c: fix warning in preprocessor symbol evaluation
lib/test_hash.c: fix warning in preprocessor symbol evaluation
Tip revision: e6173ba
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