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authorRasmus Villemoes <linux@rasmusvillemoes.dk>2015-11-06 05:45:05 +0300
committerLinus Torvalds <torvalds@linux-foundation.org>2015-11-06 06:34:48 +0300
commit8748dd5c98f7fe506ccb31a094833401ed120915 (patch)
tree9107ec0bde9c3dd5033c81d4e065cf69c27812d7 /include
parenta744fd17b5233360681ce03e43804406745b680b (diff)
downloadlinux-8748dd5c98f7fe506ccb31a094833401ed120915.tar.xz
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')
-rw-r--r--include/linux/compiler-gcc.h2
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