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[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index] [Xen-changelog] [xen master] x86/bitops: Force __scanbit() to be always inline
commit 95fab27fd0de95b8d98c7dbb8997468431f4a90f
Author: Andrew Cooper <andrew.cooper3@xxxxxxxxxx>
AuthorDate: Thu Feb 9 18:22:50 2017 +0000
Commit: Andrew Cooper <andrew.cooper3@xxxxxxxxxx>
CommitDate: Mon Feb 13 11:29:46 2017 +0000
x86/bitops: Force __scanbit() to be always inline
It turns out that GCCs 4.9.2 and 6.3.0 instantiate __scanbit() in three
translation units, but never references the result. All real uses of
__scanbit() are already suitably inline.
Signed-off-by: Andrew Cooper <andrew.cooper3@xxxxxxxxxx>
Acked-by: Jan Beulich <jbeulich@xxxxxxxx>
---
xen/include/asm-x86/bitops.h | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/xen/include/asm-x86/bitops.h b/xen/include/asm-x86/bitops.h
index fd494e8..0f18645 100644
--- a/xen/include/asm-x86/bitops.h
+++ b/xen/include/asm-x86/bitops.h
@@ -334,7 +334,7 @@ extern unsigned int __find_first_zero_bit(
extern unsigned int __find_next_zero_bit(
const unsigned long *addr, unsigned int size, unsigned int offset);
-static inline unsigned int __scanbit(unsigned long val, unsigned int max)
+static always_inline unsigned int __scanbit(unsigned long val, unsigned int
max)
{
if ( __builtin_constant_p(max) && max == BITS_PER_LONG )
alternative_io("bsf %[in],%[out]; cmovz %[max],%k[out]",
--
generated by git-patchbot for /home/xen/git/xen.git#master
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