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| author | Rasmus Villemoes <linux@rasmusvillemoes.dk> | 2015-11-05 18:45:05 -0800 |
|---|---|---|
| committer | Linus Torvalds <torvalds@linux-foundation.org> | 2015-11-05 19:34:48 -0800 |
| commit | 8748dd5c98f7fe506ccb31a094833401ed120915 (patch) | |
| tree | 9107ec0bde9c3dd5033c81d4e065cf69c27812d7 /include/linux/compiler-gcc.h | |
| parent | a744fd17b5233360681ce03e43804406745b680b (diff) | |
| download | lwn-8748dd5c98f7fe506ccb31a094833401ed120915.tar.gz lwn-8748dd5c98f7fe506ccb31a094833401ed120915.zip | |
include/linux/compiler-gcc.h: hide assume_aligned attribute from sparse
The patch "slab.h: sprinkle __assume_aligned attributes" causes *tons* of
whinges if you do 'make C=2' with sparse 0.5.0:
CHECK drivers/media/usb/pwc/pwc-if.c
include/linux/slab.h:307:43: error: attribute '__assume_aligned__': unknown attribute
include/linux/slab.h:308:58: error: attribute '__assume_aligned__': unknown attribute
include/linux/slab.h:337:73: error: attribute '__assume_aligned__': unknown attribute
include/linux/slab.h:375:74: error: attribute '__assume_aligned__': unknown attribute
include/linux/slab.h:378:80: error: attribute '__assume_aligned__': unknown attribute
sparse apparently pretends to be gcc >= 4.9, yet isn't prepared to handle
all the function attributes supported by those gccs and complains loudly.
So hide the definition of __assume_aligned from it (so that the generic
one in compiler.h gets used).
Signed-off-by: Rasmus Villemoes <linux@rasmusvillemoes.dk>
Reported-by: Valdis Kletnieks <Valdis.Kletnieks@vt.edu>
Tested-By: Valdis Kletnieks <valdis.kletnieks@vt.edu>
Cc: Christopher Li <sparse@chrisli.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'include/linux/compiler-gcc.h')
| -rw-r--r-- | include/linux/compiler-gcc.h | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/include/linux/compiler-gcc.h b/include/linux/compiler-gcc.h index 02fa6176120d..0e3110a0b771 100644 --- a/include/linux/compiler-gcc.h +++ b/include/linux/compiler-gcc.h @@ -211,7 +211,7 @@ #endif -#if GCC_VERSION >= 40900 +#if GCC_VERSION >= 40900 && !defined(__CHECKER__) /* * __assume_aligned(n, k): Tell the optimizer that the returned * pointer can be assumed to be k modulo n. The second argument is |