The patch titled
Subject: include/linux/compiler-gcc.h: hide assume_aligned attribute from sparse
has been added to the -mm tree. Its filename is
include-linux-compiler-gcch-hide-assume_aligned-attribute-from-sparse.patch
This patch should soon appear at
http://ozlabs.org/~akpm/mmots/broken-out/include-linux-compiler-gcch-hide-assume_aligned-attribute-from-sparse.patch
and later at
http://ozlabs.org/~akpm/mmotm/broken-out/include-linux-compiler-gcch-hide-assume_aligned-attribute-from-sparse.patch
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------------------------------------------------------
From: Rasmus Villemoes <linux@xxxxxxxxxxxxxxxxxx>
Subject: 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@xxxxxxxxxxxxxxxxxx>
Reported-by: Valdis Kletnieks <Valdis.Kletnieks@xxxxxx>
Tested-By: Valdis Kletnieks <valdis.kletnieks@xxxxxx>
Cc: "Christopher Li" <sparse@xxxxxxxxxxx>
Signed-off-by: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx>
---
include/linux/compiler-gcc.h | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff -puN include/linux/compiler-gcc.h~include-linux-compiler-gcch-hide-assume_aligned-attribute-from-sparse include/linux/compiler-gcc.h
--- a/include/linux/compiler-gcc.h~include-linux-compiler-gcch-hide-assume_aligned-attribute-from-sparse
+++ a/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
_
Patches currently in -mm which might be from linux@xxxxxxxxxxxxxxxxxx are
compilerh-add-support-for-function-attribute-assume_aligned.patch
include-linux-compiler-gcch-hide-assume_aligned-attribute-from-sparse.patch
slabh-sprinkle-__assume_aligned-attributes.patch
lib-dynamic_debugc-use-kstrdup_const.patch
lib-vsprintfc-handle-invalid-format-specifiers-more-robustly.patch
lib-vsprintfc-also-improve-sanity-check-in-bstr_printf.patch
lib-vsprintfc-remove-special-handling-in-pointer.patch
test_printf-test-printf-family-at-runtime.patch
lib-vsprintfc-update-documentation.patch
lib-introduce-kvasprintf_const.patch
kobject-use-kvasprintf_const-for-formatting-name.patch
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