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Fix up 64-bit byte swaps for most 32-bit architectures

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The __SWAB_64_THRU_32__ case of a 64-bit byte swap was depending on the
no-longer-existant ___swab32() method (three underscores).  We got rid
of some of the worst indirection and complexity, and now it should just
use the 32-bit swab function that was defined right above it.

Reported-and-tested-by: Nicolas Pitre <nico@cam.org>
Reported-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Cc: Harvey Harrison <harvey.harrison@gmail.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
This commit is contained in:
Linus Torvalds 2009-01-06 21:17:57 -08:00
parent 637b180c23
commit ede6f5aea0
1 changed files with 1 additions and 1 deletions
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include/linux/swab.h
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@ -68,7 +68,7 @@ static inline __attribute_const__ __u64 __fswab64(__u64 val)
#elif defined(__SWAB_64_THRU_32__) #elif defined(__SWAB_64_THRU_32__)
__u32 h = val >> 32; __u32 h = val >> 32;
__u32 l = val & ((1ULL << 32) - 1); __u32 l = val & ((1ULL << 32) - 1);
return (((__u64)___swab32(l)) << 32) | ((__u64)(___swab32(h))); return (((__u64)__fswab32(l)) << 32) | ((__u64)(__fswab32(h)));
#else #else
return ___constant_swab64(val); return ___constant_swab64(val);
#endif #endif