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Subject[PATCH 03/31] Add alpha-specific parity functions
From
Date
From: Zeng Zhaoxiu <zhaoxiu.zeng@gmail.com>

Signed-off-by: Zeng Zhaoxiu <zhaoxiu.zeng@gmail.com>
---
arch/alpha/include/asm/bitops.h | 27 +++++++++++++++++++++++++++
1 file changed, 27 insertions(+)

diff --git a/arch/alpha/include/asm/bitops.h b/arch/alpha/include/asm/bitops.h
index 4bdfbd4..95a43fa 100644
--- a/arch/alpha/include/asm/bitops.h
+++ b/arch/alpha/include/asm/bitops.h
@@ -421,11 +421,38 @@ static inline unsigned int __arch_hweight8(unsigned int w)
{
return __arch_hweight64(w & 0xff);
}
+
+static inline unsigned int __arch_parity64(unsigned long w)
+{
+ return (unsigned int)__kernel_ctpop(w) & 1;
+}
+
+static inline unsigned int __arch_parity32(unsigned int w)
+{
+ return __arch_parity64(w);
+}
+
+static inline unsigned int __arch_parity16(unsigned int w)
+{
+ return __arch_parity64(w & 0xffff);
+}
+
+static inline unsigned int __arch_parity8(unsigned int w)
+{
+ return __arch_parity64(w & 0xff);
+}
+
+static inline unsigned int __arch_parity4(unsigned int w)
+{
+ return __arch_parity64(w & 0xf);
+}
#else
#include <asm-generic/bitops/arch_hweight.h>
+#include <asm-generic/bitops/arch_parity.h>
#endif

#include <asm-generic/bitops/const_hweight.h>
+#include <asm-generic/bitops/const_parity.h>

#endif /* __KERNEL__ */

--
2.5.5
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