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| author | Denys Vlasenko | 2010-10-27 15:26:45 +0200 |
|---|---|---|
| committer | Denys Vlasenko | 2010-10-27 15:26:45 +0200 |
| commit | 9ce642f9746dfc29d119d0680b769677e3ea6da6 (patch) | |
| tree | f8d2bcd08c691979058b610b32573a742a3e3024 /util-linux | |
| parent | dd88ba88f5082b1785539b1fb87af7320515b8c9 (diff) | |
| download | busybox-9ce642f9746dfc29d119d0680b769677e3ea6da6.zip busybox-9ce642f9746dfc29d119d0680b769677e3ea6da6.tar.gz | |
libbb: introduce and use common crc32 routine
function old new delta
crc32_block_endian1 - 37 +37
crc32_block_endian0 - 34 +34
global_crc32_table - 8 +8
file_read 82 87 +5
gzip_main 211 214 +3
xz_crc32 40 35 -5
crc32_table 8 - -8
calculate_gunzip_crc 54 34 -20
lzo_crc32 54 25 -29
cksum_main 298 211 -87
------------------------------------------------------------------------------
(add/remove: 3/1 grow/shrink: 2/4 up/down: 87/-149) Total: -62 bytes
Signed-off-by: Denys Vlasenko <dvlasenk@redhat.com>
Diffstat (limited to 'util-linux')
| -rw-r--r-- | util-linux/fdisk_gpt.c | 13 |
1 files changed, 3 insertions, 10 deletions
diff --git a/util-linux/fdisk_gpt.c b/util-linux/fdisk_gpt.c index 98803ec..4dfb5b2 100644 --- a/util-linux/fdisk_gpt.c +++ b/util-linux/fdisk_gpt.c @@ -46,8 +46,6 @@ static unsigned int n_parts; static unsigned int part_array_len; static unsigned int part_entry_len; -static uint32_t *crc32_table; - static inline gpt_partition * gpt_part(int i) { @@ -61,12 +59,7 @@ gpt_part(int i) static uint32_t gpt_crc32(void *buf, int len) { - uint32_t crc = 0xffffffff; - - for (; len > 0; len--, buf++) { - crc = crc32_table[(crc ^ *((char *)buf)) & 0xff] ^ (crc >> 8); - } - return crc ^ 0xffffffff; + return 0xffffffff ^ crc32_block_endian0(0xffffffff, buf, len, global_crc32_table); } static void @@ -160,8 +153,8 @@ check_gpt_label(void) return 0; } - if (!crc32_table) { - crc32_table = crc32_filltable(NULL, 0); + if (!global_crc32_table) { + global_crc32_table = crc32_filltable(NULL, 0); } crc = SWAP_LE32(gpt_hdr->hdr_crc32); |