[PATCH v6 06/10] crc32-fix-check-endian-warnings.diff

Bob Pearson
2011-08-31T22:30:32Z

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.

Signed-off-by: Bob Pearson <rpearson@systemfabricworks.com>

---
lib/crc32.c | 12 ++++++------
1 file changed, 6 insertions(+), 6 deletions(-)

Index: for-next/lib/crc32.c
===================================================================
--- for-next.orig/lib/crc32.c
+++ for-next/lib/crc32.c
@@ -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 ch
# 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 ch
# 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;
}