From: Eric Biggers Date: Sun, 22 Oct 2023 08:10:32 +0000 (-0700) Subject: crypto: sun4i-ss - remove unnecessary alignmask for ahashes X-Git-Url: http://git.maquefel.me/?a=commitdiff_plain;h=977755579d3f7f6ad6b719b0f50c924c89ea8c1e;p=linux.git crypto: sun4i-ss - remove unnecessary alignmask for ahashes The crypto API's support for alignmasks for ahash algorithms is nearly useless, as its only effect is to cause the API to align the key and result buffers. The drivers that happen to be specifying an alignmask for ahash rarely actually need it. When they do, it's easily fixable, especially considering that these buffers cannot be used for DMA. In preparation for removing alignmask support from ahash, this patch makes the sun4i-ss driver no longer use it. This driver didn't actually rely on it; it only writes to the result buffer in sun4i_hash(), already using the unaligned access helpers. And this driver only supports unkeyed hash algorithms, so the key buffer need not be considered. Signed-off-by: Eric Biggers Acked-by: Corentin Labbe Signed-off-by: Herbert Xu --- diff --git a/drivers/crypto/allwinner/sun4i-ss/sun4i-ss-core.c b/drivers/crypto/allwinner/sun4i-ss/sun4i-ss-core.c index ba80878e2df55..890664bd5f0f1 100644 --- a/drivers/crypto/allwinner/sun4i-ss/sun4i-ss-core.c +++ b/drivers/crypto/allwinner/sun4i-ss/sun4i-ss-core.c @@ -49,7 +49,6 @@ static struct sun4i_ss_alg_template ss_algs[] = { .cra_name = "md5", .cra_driver_name = "md5-sun4i-ss", .cra_priority = 300, - .cra_alignmask = 3, .cra_blocksize = MD5_HMAC_BLOCK_SIZE, .cra_ctxsize = sizeof(struct sun4i_req_ctx), .cra_module = THIS_MODULE, @@ -76,7 +75,6 @@ static struct sun4i_ss_alg_template ss_algs[] = { .cra_name = "sha1", .cra_driver_name = "sha1-sun4i-ss", .cra_priority = 300, - .cra_alignmask = 3, .cra_blocksize = SHA1_BLOCK_SIZE, .cra_ctxsize = sizeof(struct sun4i_req_ctx), .cra_module = THIS_MODULE,