X-Git-Url: http://www.chiark.greenend.org.uk/ucgi/~ianmdlvl/git?a=blobdiff_plain;f=extras%2Fvolume_id%2Flibvolume_id%2Futil.h;h=f6c57fb66dc18754290db7b182bec55aa05ee4d4;hb=88be7e8887e9284666b7844bb0faa84fbb699fb2;hp=6e16491c80658488a4cf42d403546fdf84916cc1;hpb=f054627f500450a7aadeaf8a9930354fb268718e;p=elogind.git

diff --git a/extras/volume_id/libvolume_id/util.h b/extras/volume_id/libvolume_id/util.h
index 6e16491c8..f6c57fb66 100644
--- a/extras/volume_id/libvolume_id/util.h
+++ b/extras/volume_id/libvolume_id/util.h
@@ -20,48 +20,31 @@
 #endif
 
 #include <endian.h>
+#include <byteswap.h>
 
 /* size of superblock buffer, reiserfs block is at 64k */
 #define SB_BUFFER_SIZE				0x11000
 /* size of seek buffer, FAT cluster is 32k max */
 #define SEEK_BUFFER_SIZE			0x10000
 
-/* probe volume for all known filesystems in specific order */
-#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))
-
 #ifdef __BYTE_ORDER
 #if (__BYTE_ORDER == __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 be16_to_cpu(x) bswap_16(x)
+#define be32_to_cpu(x) bswap_32(x)
 #define cpu_to_le16(x) (x)
 #define cpu_to_le32(x) (x)
-#define cpu_to_be32(x) bswap32(x)
+#define cpu_to_be32(x) bswap_32(x)
 #elif (__BYTE_ORDER == __BIG_ENDIAN)
-#define le16_to_cpu(x) bswap16(x)
-#define le32_to_cpu(x) bswap32(x)
-#define le64_to_cpu(x) bswap64(x)
+#define le16_to_cpu(x) bswap_16(x)
+#define le32_to_cpu(x) bswap_32(x)
+#define le64_to_cpu(x) bswap_64(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_le16(x) bswap_16(x)
+#define cpu_to_le32(x) bswap_32(x)
 #define cpu_to_be32(x) (x)
 #endif
 #endif /* __BYTE_ORDER */