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| author | Eric Biggers <ebiggers@kernel.org> | 2025-06-07 13:04:43 -0700 |
|---|---|---|
| committer | Eric Biggers <ebiggers@kernel.org> | 2025-06-30 09:31:57 -0700 |
| commit | 89a51591405e09a862b9ca1ccfa880986c495c3c (patch) | |
| tree | 74f7ee464cc8d7e5022d5272bc7c24020d5b79d0 /lib/crc32.c | |
| parent | f2703a104e89077e622e2f34ac686262c5180d71 (diff) | |
| download | net-89a51591405e09a862b9ca1ccfa880986c495c3c.tar.gz | |
lib/crc: Move files into lib/crc/
Move all CRC files in lib/ into a subdirectory lib/crc/ to keep them
from cluttering up the main lib/ directory.
Reviewed-by: "Martin K. Petersen" <martin.petersen@oracle.com>
Acked-by: Ingo Molnar <mingo@kernel.org>
Acked-by: "Jason A. Donenfeld" <Jason@zx2c4.com>
Link: https://lore.kernel.org/r/20250607200454.73587-2-ebiggers@kernel.org
Signed-off-by: Eric Biggers <ebiggers@kernel.org>
Diffstat (limited to 'lib/crc32.c')
| -rw-r--r-- | lib/crc32.c | 59 |
1 files changed, 0 insertions, 59 deletions
diff --git a/lib/crc32.c b/lib/crc32.c deleted file mode 100644 index 6811b37df2aada..00000000000000 --- a/lib/crc32.c +++ /dev/null @@ -1,59 +0,0 @@ -// SPDX-License-Identifier: GPL-2.0-only -/* - * Aug 8, 2011 Bob Pearson with help from Joakim Tjernlund and George Spelvin - * cleaned up code to current version of sparse and added the slicing-by-8 - * algorithm to the closely similar existing slicing-by-4 algorithm. - * - * Oct 15, 2000 Matt Domsch <Matt_Domsch@dell.com> - * Nicer crc32 functions/docs submitted by linux@horizon.com. Thanks! - * Code was from the public domain, copyright abandoned. Code was - * subsequently included in the kernel, thus was re-licensed under the - * GNU GPL v2. - * - * Oct 12, 2000 Matt Domsch <Matt_Domsch@dell.com> - * Same crc32 function was used in 5 other places in the kernel. - * I made one version, and deleted the others. - * There are various incantations of crc32(). Some use a seed of 0 or ~0. - * Some xor at the end with ~0. The generic crc32() function takes - * seed as an argument, and doesn't xor at the end. Then individual - * users can do whatever they need. - * drivers/net/smc9194.c uses seed ~0, doesn't xor with ~0. - * fs/jffs2 uses seed 0, doesn't xor with ~0. - * fs/partitions/efi.c uses seed ~0, xor's with ~0. - */ - -/* see: Documentation/staging/crc32.rst for a description of algorithms */ - -#include <linux/crc32.h> -#include <linux/module.h> -#include <linux/types.h> - -#include "crc32table.h" - -MODULE_AUTHOR("Matt Domsch <Matt_Domsch@dell.com>"); -MODULE_DESCRIPTION("Various CRC32 calculations"); -MODULE_LICENSE("GPL"); - -u32 crc32_le_base(u32 crc, const u8 *p, size_t len) -{ - while (len--) - crc = (crc >> 8) ^ crc32table_le[(crc & 255) ^ *p++]; - return crc; -} -EXPORT_SYMBOL(crc32_le_base); - -u32 crc32c_base(u32 crc, const u8 *p, size_t len) -{ - while (len--) - crc = (crc >> 8) ^ crc32ctable_le[(crc & 255) ^ *p++]; - return crc; -} -EXPORT_SYMBOL(crc32c_base); - -u32 crc32_be_base(u32 crc, const u8 *p, size_t len) -{ - while (len--) - crc = (crc << 8) ^ crc32table_be[(crc >> 24) ^ *p++]; - return crc; -} -EXPORT_SYMBOL(crc32_be_base); |