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include: add bitops.h with swab{16,32,64} macros 

Signed-off-by: Karel Zak <kzak@redhat.com>
This commit is contained in:
Karel Zak 2007-12-17 13:18:12 +01:00
parent 1ed3367f61
commit a34fc3d4ad
1 changed files with 20 additions and 2 deletions
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22
include/bitops.h
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@ -32,20 +32,38 @@
#ifdef WORDS_BIGENDIAN
#define cpu_to_le16(x) swab16(x)
#define cpu_to_le32(x) swab32(x)
#define cpu_to_le64(x) swab64(x)
#define cpu_to_be16(x) (x)
#define cpu_to_be32(x) (x)
#define cpu_to_be64(x) (x)
#else
#define le16_to_cpu(x) swab16(x)
#define le32_to_cpu(x) swab32(x)
#define le64_to_cpu(x) swab64(x)
#define be16_to_cpu(x) (x)
#define be32_to_cpu(x) (x)
#define be64_to_cpu(x) (x)
#else /* !WORDS_BIGENDIAN */
#define cpu_to_le16(x) (x)
#define cpu_to_le32(x) (x)
#define cpu_to_le64(x) (x)
#define cpu_to_be16(x) swab16(x)
#define cpu_to_be32(x) swab32(x)
#define cpu_to_be64(x) swab64(x)
#endif
#define le16_to_cpu(x) (x)
#define le32_to_cpu(x) (x)
#define le64_to_cpu(x) (x)
#define be16_to_cpu(x) swab16(x)
#define be32_to_cpu(x) swab32(x)
#define be64_to_cpu(x) swab64(x)
#endif /* !WORDS_BIGENDIAN */
#endif /* BITOPS_H */