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volume_id_internal.h: drop unoptimized byteswap routines

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function                                             old     new   delta
volume_id_probe_hfs_hfsplus                          802     627    -175

Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
This commit is contained in:
Denys Vlasenko 2013-05-15 09:36:40 +02:00
parent 414db791d0
commit aa94130f74
1 changed files with 16 additions and 36 deletions
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52
util-linux/volume_id/volume_id_internal.h
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@ -96,44 +96,24 @@ void FAST_FUNC free_volume_id(struct volume_id *id);
/* size of seek buffer, FAT cluster is 32k max */
#define SEEK_BUFFER_SIZE 0x10000
#define bswap16(x) (uint16_t) ( \
(((uint16_t)(x) & 0x00ffu) << 8) | \
(((uint16_t)(x) & 0xff00u) >> 8))
#define bswap32(x) (uint32_t) ( \
(((uint32_t)(x) & 0xff000000u) >> 24) | \
(((uint32_t)(x) & 0x00ff0000u) >> 8) | \
(((uint32_t)(x) & 0x0000ff00u) << 8) | \
(((uint32_t)(x) & 0x000000ffu) << 24))
#define bswap64(x) (uint64_t) ( \
(((uint64_t)(x) & 0xff00000000000000ull) >> 56) | \
(((uint64_t)(x) & 0x00ff000000000000ull) >> 40) | \
(((uint64_t)(x) & 0x0000ff0000000000ull) >> 24) | \
(((uint64_t)(x) & 0x000000ff00000000ull) >> 8) | \
(((uint64_t)(x) & 0x00000000ff000000ull) << 8) | \
(((uint64_t)(x) & 0x0000000000ff0000ull) << 24) | \
(((uint64_t)(x) & 0x000000000000ff00ull) << 40) | \
(((uint64_t)(x) & 0x00000000000000ffull) << 56))
#if BB_LITTLE_ENDIAN
#define le16_to_cpu(x) (x)
#define le32_to_cpu(x) (x)
#define le64_to_cpu(x) (x)
#define be16_to_cpu(x) bswap16(x)
#define be32_to_cpu(x) bswap32(x)
#define cpu_to_le16(x) (x)
#define cpu_to_le32(x) (x)
#define cpu_to_be32(x) bswap32(x)
# define le16_to_cpu(x) (uint16_t)(x)
# define le32_to_cpu(x) (uint32_t)(x)
# define le64_to_cpu(x) (uint64_t)(x)
# define be16_to_cpu(x) (uint16_t)(bswap_16(x))
# define be32_to_cpu(x) (uint32_t)(bswap_32(x))
# define cpu_to_le16(x) (uint16_t)(x)
# define cpu_to_le32(x) (uint32_t)(x)
# define cpu_to_be32(x) (uint32_t)(bswap_32(x))
#else
#define le16_to_cpu(x) bswap16(x)
#define le32_to_cpu(x) bswap32(x)
#define le64_to_cpu(x) bswap64(x)
#define be16_to_cpu(x) (x)
#define be32_to_cpu(x) (x)
#define cpu_to_le16(x) bswap16(x)
#define cpu_to_le32(x) bswap32(x)
#define cpu_to_be32(x) (x)
# define le16_to_cpu(x) (uint16_t)(bswap_16(x))
# define le32_to_cpu(x) (uint32_t)(bswap_32(x))
# define le64_to_cpu(x) (uint64_t)(bb_bswap_64(x))
# define be16_to_cpu(x) (uint16_t)(x)
# define be32_to_cpu(x) (uint32_t)(x)
# define cpu_to_le16(x) (uint16_t)(bswap_16(x))
# define cpu_to_le32(x) (uint32_t)(bswap_32(x))
# define cpu_to_be32(x) (uint32_t)(x)
#endif
/* volume_id_set_uuid(id,buf,fmt) assumes size of uuid buf