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crc32: fix mixing of endian-specific types

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crc32.c in its original version freely mixed u32, __le32 and __be32 types
which caused warnings from sparse with __CHECK_ENDIAN__.  This patch fixes
these by forcing the types to u32.

[[email protected]: Minor changelog tweaks]
Signed-off-by: Bob Pearson <[email protected]>
Signed-off-by: Darrick J. Wong <[email protected]>
Signed-off-by: Andrew Morton <[email protected]>
Signed-off-by: Linus Torvalds <[email protected]>
This commit is contained in:
Bob Pearson 2012-03-23 15:02:23 -07:00 • committed by Linus Torvalds
commit ce4320ddda
1 changed files with 6 additions and 6 deletions
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12
lib/crc32.c
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@ -28,13 +28,13 @@
#include "crc32defs.h"
#if CRC_LE_BITS == 8
# define tole(x) __constant_cpu_to_le32(x)
# define tole(x) ((__force u32) __constant_cpu_to_le32(x))
#else
# define tole(x) (x)
#endif
#if CRC_BE_BITS == 8
# define tobe(x) __constant_cpu_to_be32(x)
# define tobe(x) ((__force u32) __constant_cpu_to_be32(x))
#else
# define tobe(x) (x)
#endif
@ -128,9 +128,9 @@ u32 __pure crc32_le(u32 crc, unsigned char const *p, size_t len)
# elif CRC_LE_BITS == 8
const u32 (*tab)[] = crc32table_le;
crc = __cpu_to_le32(crc);
crc = (__force u32) __cpu_to_le32(crc);
crc = crc32_body(crc, p, len, tab);
crc = __le32_to_cpu(crc);
crc = __le32_to_cpu((__force __le32)crc);
#endif
return crc;
}
@ -171,9 +171,9 @@ u32 __pure crc32_be(u32 crc, unsigned char const *p, size_t len)
# elif CRC_BE_BITS == 8
const u32 (*tab)[] = crc32table_be;
crc = __cpu_to_be32(crc);
crc = (__force u32) __cpu_to_be32(crc);
crc = crc32_body(crc, p, len, tab);
crc = __be32_to_cpu(crc);
crc = __be32_to_cpu((__force __be32)crc);
# endif
return crc;
}