mirrors/linux-stable
1
0
Fork 0
mirror of https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git synced 2024-09-27 12:57:53 +00:00
Code Issues Releases Wiki Activity

crypto: arm64/sha2-ce - implement ->digest for sha256

Browse source 
Implement a ->digest function for sha256-ce.  This improves the
performance of crypto_shash_digest() with this algorithm by reducing the
number of indirect calls that are made.  This only adds ~112 bytes of
code, mostly for the inlined init, as the finup function is tail-called.

For now, don't bother with this for sha224, since sha224 is rarely used.

Signed-off-by: Eric Biggers <ebiggers@google.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
This commit is contained in:
Eric Biggers 2023-10-09 00:53:27 -07:00 committed by Herbert Xu
parent 2e02c25ac9
commit 1efcbf0eff
1 changed files with 8 additions and 0 deletions
Show stats Download patch file Download diff file Expand all files Collapse all files

8
arch/arm64/crypto/sha2-ce-glue.c
View file

@ -116,6 +116,13 @@ static int sha256_ce_final(struct shash_desc *desc, u8 *out)
return sha256_base_finish(desc, out);
}
static int sha256_ce_digest(struct shash_desc *desc, const u8 *data,
unsigned int len, u8 *out)
{
sha256_base_init(desc);
return sha256_ce_finup(desc, data, len, out);
}
static int sha256_ce_export(struct shash_desc *desc, void *out)
{
struct sha256_ce_state *sctx = shash_desc_ctx(desc);
@ -155,6 +162,7 @@ static struct shash_alg algs[] = { {
.update = sha256_ce_update,
.final = sha256_ce_final,
.finup = sha256_ce_finup,
.digest = sha256_ce_digest,
.export = sha256_ce_export,
.import = sha256_ce_import,
.descsize = sizeof(struct sha256_ce_state),