From: Eric Biggers <ebiggers@google.com>
Date: Tue, 10 Oct 2023 05:59:45 +0000 (-0700)
Subject: crypto: arm64/nhpoly1305 - implement ->digest
X-Git-Url: http://git.maquefel.me/?a=commitdiff_plain;h=ddefde7b2af85b1f689c44a5ffdf1198767c9c2a;p=linux.git

crypto: arm64/nhpoly1305 - implement ->digest

Implement the ->digest method to improve performance on single-page
messages by reducing the number of indirect calls.

Signed-off-by: Eric Biggers <ebiggers@google.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
---

diff --git a/arch/arm64/crypto/nhpoly1305-neon-glue.c b/arch/arm64/crypto/nhpoly1305-neon-glue.c
index cd882c35d9252..e4a0b463f080e 100644
--- a/arch/arm64/crypto/nhpoly1305-neon-glue.c
+++ b/arch/arm64/crypto/nhpoly1305-neon-glue.c
@@ -34,6 +34,14 @@ static int nhpoly1305_neon_update(struct shash_desc *desc,
 	return 0;
 }
 
+static int nhpoly1305_neon_digest(struct shash_desc *desc,
+				  const u8 *src, unsigned int srclen, u8 *out)
+{
+	return crypto_nhpoly1305_init(desc) ?:
+	       nhpoly1305_neon_update(desc, src, srclen) ?:
+	       crypto_nhpoly1305_final(desc, out);
+}
+
 static struct shash_alg nhpoly1305_alg = {
 	.base.cra_name		= "nhpoly1305",
 	.base.cra_driver_name	= "nhpoly1305-neon",
@@ -44,6 +52,7 @@ static struct shash_alg nhpoly1305_alg = {
 	.init			= crypto_nhpoly1305_init,
 	.update			= nhpoly1305_neon_update,
 	.final			= crypto_nhpoly1305_final,
+	.digest			= nhpoly1305_neon_digest,
 	.setkey			= crypto_nhpoly1305_setkey,
 	.descsize		= sizeof(struct nhpoly1305_state),
 };