From: Eric Biggers <ebiggers@xxxxxxxxxx>
Implement the ->digest method to improve performance on single-page
messages by reducing the number of indirect calls.
Signed-off-by: Eric Biggers <ebiggers@xxxxxxxxxx>
---
arch/arm/crypto/nhpoly1305-neon-glue.c | 9 +++++++++
1 file changed, 9 insertions(+)
diff --git a/arch/arm/crypto/nhpoly1305-neon-glue.c b/arch/arm/crypto/nhpoly1305-neon-glue.c
index e93e41ff26566..62cf7ccdde736 100644
--- a/arch/arm/crypto/nhpoly1305-neon-glue.c
+++ b/arch/arm/crypto/nhpoly1305-neon-glue.c
@@ -27,30 +27,39 @@ static int nhpoly1305_neon_update(struct shash_desc *desc,
kernel_neon_begin();
crypto_nhpoly1305_update_helper(desc, src, n, nh_neon);
kernel_neon_end();
src += n;
srclen -= n;
} while (srclen);
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",
.base.cra_priority = 200,
.base.cra_ctxsize = sizeof(struct nhpoly1305_key),
.base.cra_module = THIS_MODULE,
.digestsize = POLY1305_DIGEST_SIZE,
.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),
};
static int __init nhpoly1305_mod_init(void)
{
if (!(elf_hwcap & HWCAP_NEON))
return -ENODEV;
return crypto_register_shash(&nhpoly1305_alg);
--
2.42.0
