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Subject[PATCH] include : compile warning by __const_hweight8
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The compilation warning is caused by __const_hweight8 when using hweight_long with -Wsign-compare option.
The reason is that the default return value of this macro is signed. So, need tye casting to remove warning.

Signed-off-by: Namjae Jeon <linkinjeon@gmail.com>
---
include/asm-generic/bitops/const_hweight.h | 2 +-
1 files changed, 1 insertions(+), 1 deletions(-)

diff --git a/include/asm-generic/bitops/const_hweight.h b/include/asm-generic/bitops/const_hweight.h
index fa2a50b..d91b1aa 100644
--- a/include/asm-generic/bitops/const_hweight.h
+++ b/include/asm-generic/bitops/const_hweight.h
@@ -4,7 +4,7 @@
/*
* Compile time versions of __arch_hweightN()
*/
-#define __const_hweight8(w) \
+#define __const_hweight8(w) (unsigned long) \
( (!!((w) & (1ULL << 0))) + \
(!!((w) & (1ULL << 1))) + \
(!!((w) & (1ULL << 2))) + \
--
1.7.4.4


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