diff options
| author | Nikolay Borisov <nborisov@suse.com> | 2018-01-08 10:45:04 +0100 |
|---|---|---|
| committer | David Sterba <dsterba@suse.com> | 2018-03-26 15:09:38 +0200 |
| commit | df91f56adce1fc131e05368a0ad0ea72afd9a79a (patch) | |
| tree | 2406ccfaa0fb50877c45d2cdca364a1f3c2f48c0 /lib | |
| parent | btrfs: Refactor __get_raid_index() to btrfs_bg_flags_to_raid_index() (diff) | |
| download | linux-df91f56adce1fc131e05368a0ad0ea72afd9a79a.tar.xz linux-df91f56adce1fc131e05368a0ad0ea72afd9a79a.zip | |
libcrc32c: Add crc32c_impl function
This function returns a string with the currently in-use implementation
of the crc32c algorithm, i.e crc32c-generic (for unoptimised, generic
implementation) or crc32c-intel for the sse optimised version. This
will be used by btrfs.
Signed-off-by: Nikolay Borisov <nborisov@suse.com>
Acked-by: Herbert Xu <herbert@gondor.apana.org.au>
[ use crypto_shash_driver_name as suggested by Herbert ]
Signed-off-by: David Sterba <dsterba@suse.com>
Diffstat (limited to 'lib')
| -rw-r--r-- | lib/libcrc32c.c | 6 |
1 files changed, 6 insertions, 0 deletions
diff --git a/lib/libcrc32c.c b/lib/libcrc32c.c index 9f79547d1b97..f0a2934605bf 100644 --- a/lib/libcrc32c.c +++ b/lib/libcrc32c.c @@ -71,6 +71,12 @@ static void __exit libcrc32c_mod_fini(void) crypto_free_shash(tfm); } +const char *crc32c_impl(void) +{ + return crypto_shash_driver_name(tfm); +} +EXPORT_SYMBOL(crc32c_impl); + module_init(libcrc32c_mod_init); module_exit(libcrc32c_mod_fini); |