This patch tries to preserve in-place processing in old_crypt as various algorithms are optimised for in-place processing where src == dst. Signed-off-by: Herbert Xu <herbert@xxxxxxxxxxxxxxxxxxx> --- crypto/aead.c | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-) diff --git a/crypto/aead.c b/crypto/aead.c index 7c3d725..35c55e0 100644 --- a/crypto/aead.c +++ b/crypto/aead.c @@ -107,7 +107,8 @@ static int old_crypt(struct aead_request *req, return crypt(req); src = scatterwalk_ffwd(nreq->srcbuf, req->src, req->assoclen); - dst = scatterwalk_ffwd(nreq->dstbuf, req->dst, req->assoclen); + dst = req->src == req->dst ? + src : scatterwalk_ffwd(nreq->dstbuf, req->dst, req->assoclen); aead_request_set_tfm(&nreq->subreq, aead); aead_request_set_callback(&nreq->subreq, aead_request_flags(req), -- To unsubscribe from this list: send the line "unsubscribe linux-crypto" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
