From: Eric Biggers <ebiggers@xxxxxxxxxx>
One of the assignments that was removed by commit 4a0c1de64bf9 ("crypto:
x86/poly1305 - Remove assignments with no effect") is actually needed,
since it affects the return value.
This fixes the following crypto self-test failure:
alg: shash: poly1305-simd test failed (wrong result) on test vector 2, cfg="init+update+final aligned buffer"
Fixes: 4a0c1de64bf9 ("crypto: x86/poly1305 - Remove assignments with no effect")
Signed-off-by: Eric Biggers <ebiggers@xxxxxxxxxx>
---
Note, this is a regression in mainline, so please include this in a pull
request for 5.10.
arch/x86/crypto/poly1305_glue.c | 1 +
1 file changed, 1 insertion(+)
diff --git a/arch/x86/crypto/poly1305_glue.c b/arch/x86/crypto/poly1305_glue.c
index e508dbd91813..c44aba290fbb 100644
--- a/arch/x86/crypto/poly1305_glue.c
+++ b/arch/x86/crypto/poly1305_glue.c
@@ -158,6 +158,7 @@ static unsigned int crypto_poly1305_setdctxkey(struct poly1305_desc_ctx *dctx,
dctx->s[1] = get_unaligned_le32(&inp[4]);
dctx->s[2] = get_unaligned_le32(&inp[8]);
dctx->s[3] = get_unaligned_le32(&inp[12]);
+ acc += POLY1305_BLOCK_SIZE;
dctx->sset = true;
}
}
--
2.29.0.rc1.297.gfa9743e501-goog
