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Diffstat (limited to 'lib/gen_crc32table.c')
-rw-r--r--lib/gen_crc32table.c11
1 files changed, 10 insertions, 1 deletions
diff --git a/lib/gen_crc32table.c b/lib/gen_crc32table.c
index eced7696eb7c..99ac744848fb 100644
--- a/lib/gen_crc32table.c
+++ b/lib/gen_crc32table.c
@@ -4,8 +4,17 @@
4 4
5#define ENTRIES_PER_LINE 4 5#define ENTRIES_PER_LINE 4
6 6
7#if CRC_LE_BITS <= 8
7#define LE_TABLE_SIZE (1 << CRC_LE_BITS) 8#define LE_TABLE_SIZE (1 << CRC_LE_BITS)
9#else
10#define LE_TABLE_SIZE 256
11#endif
12
13#if CRC_BE_BITS <= 8
8#define BE_TABLE_SIZE (1 << CRC_BE_BITS) 14#define BE_TABLE_SIZE (1 << CRC_BE_BITS)
15#else
16#define BE_TABLE_SIZE 256
17#endif
9 18
10static uint32_t crc32table_le[4][256]; 19static uint32_t crc32table_le[4][256];
11static uint32_t crc32table_be[4][256]; 20static uint32_t crc32table_be[4][256];
@@ -24,7 +33,7 @@ static void crc32init_le(void)
24 33
25 crc32table_le[0][0] = 0; 34 crc32table_le[0][0] = 0;
26 35
27 for (i = 1 << (CRC_LE_BITS - 1); i; i >>= 1) { 36 for (i = LE_TABLE_SIZE >> 1; i; i >>= 1) {
28 crc = (crc >> 1) ^ ((crc & 1) ? CRCPOLY_LE : 0); 37 crc = (crc >> 1) ^ ((crc & 1) ? CRCPOLY_LE : 0);
29 for (j = 0; j < LE_TABLE_SIZE; j += 2 * i) 38 for (j = 0; j < LE_TABLE_SIZE; j += 2 * i)
30 crc32table_le[0][i + j] = crc ^ crc32table_le[0][j]; 39 crc32table_le[0][i + j] = crc ^ crc32table_le[0][j];