diff options
Diffstat (limited to 'fs/btrfs/hash.c')
| -rw-r--r-- | fs/btrfs/hash.c | 16 |
1 files changed, 7 insertions, 9 deletions
diff --git a/fs/btrfs/hash.c b/fs/btrfs/hash.c index 64f15bb30a81..aae520b2aee5 100644 --- a/fs/btrfs/hash.c +++ b/fs/btrfs/hash.c @@ -31,18 +31,16 @@ void btrfs_hash_exit(void) u32 btrfs_crc32c(u32 crc, const void *address, unsigned int length) { - struct { - struct shash_desc shash; - char ctx[crypto_shash_descsize(tfm)]; - } desc; + SHASH_DESC_ON_STACK(shash, tfm); + u32 *ctx = (u32 *)shash_desc_ctx(shash); int err; - desc.shash.tfm = tfm; - desc.shash.flags = 0; - *(u32 *)desc.ctx = crc; + shash->tfm = tfm; + shash->flags = 0; + *ctx = crc; - err = crypto_shash_update(&desc.shash, address, length); + err = crypto_shash_update(shash, address, length); BUG_ON(err); - return *(u32 *)desc.ctx; + return *ctx; } |