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authorAkinobu Mita <akinobu.mita@gmail.com>2013-08-14 22:07:30 +0900
committerChris Metcalf <cmetcalf@tilera.com>2013-09-03 14:53:27 -0400
commitd6a0aa314c06743b702931cb468f400b7615c5c9 (patch)
treeca6d0ad79d99ab5ad4bbe2b5e85e512acd13cb88 /arch/tile
parentf6f380dff682749373d5a654a76e9bc8467010c5 (diff)
downloadop-kernel-dev-d6a0aa314c06743b702931cb468f400b7615c5c9.zip
op-kernel-dev-d6a0aa314c06743b702931cb468f400b7615c5c9.tar.gz
tile: use asm-generic/bitops/builtin-*.h
The definisions of __ffs(), __fls(), and ffs() for tile are almost same as asm-generic/bitops-*.h. The only difference is that it is defined as __always_inline or inline. So this switches to use those headers. Signed-off-by: Akinobu Mita <akinobu.mita@gmail.com> Signed-off-by: Chris Metcalf <cmetcalf@tilera.com> [moved #includes to end]
Diffstat (limited to 'arch/tile')
-rw-r--r--arch/tile/include/asm/bitops.h41
1 files changed, 3 insertions, 38 deletions
diff --git a/arch/tile/include/asm/bitops.h b/arch/tile/include/asm/bitops.h
index bd186c4..d5a2068 100644
--- a/arch/tile/include/asm/bitops.h
+++ b/arch/tile/include/asm/bitops.h
@@ -29,17 +29,6 @@
#endif
/**
- * __ffs - find first set bit in word
- * @word: The word to search
- *
- * Undefined if no set bit exists, so code should check against 0 first.
- */
-static inline unsigned long __ffs(unsigned long word)
-{
- return __builtin_ctzl(word);
-}
-
-/**
* ffz - find first zero bit in word
* @word: The word to search
*
@@ -50,33 +39,6 @@ static inline unsigned long ffz(unsigned long word)
return __builtin_ctzl(~word);
}
-/**
- * __fls - find last set bit in word
- * @word: The word to search
- *
- * Undefined if no set bit exists, so code should check against 0 first.
- */
-static inline unsigned long __fls(unsigned long word)
-{
- return (sizeof(word) * 8) - 1 - __builtin_clzl(word);
-}
-
-/**
- * ffs - find first set bit in word
- * @x: the word to search
- *
- * This is defined the same way as the libc and compiler builtin ffs
- * routines, therefore differs in spirit from the other bitops.
- *
- * ffs(value) returns 0 if value is 0 or the position of the first
- * set bit if value is nonzero. The first (least significant) bit
- * is at position 1.
- */
-static inline int ffs(int x)
-{
- return __builtin_ffs(x);
-}
-
static inline int fls64(__u64 w)
{
return (sizeof(__u64) * 8) - __builtin_clzll(w);
@@ -118,6 +80,9 @@ static inline unsigned long __arch_hweight64(__u64 w)
return __builtin_popcountll(w);
}
+#include <asm-generic/bitops/builtin-__ffs.h>
+#include <asm-generic/bitops/builtin-__fls.h>
+#include <asm-generic/bitops/builtin-ffs.h>
#include <asm-generic/bitops/const_hweight.h>
#include <asm-generic/bitops/lock.h>
#include <asm-generic/bitops/find.h>
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