From 12e06ca3b98326e6320b74c18d344db294f2e5ae Mon Sep 17 00:00:00 2001 From: Eric Biggers Date: Sun, 22 Oct 2023 01:10:33 -0700 Subject: [PATCH] crypto: sun8i-ce - 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 sun8i-ce driver no longer use it. This driver didn't actually rely on it; it only writes to the result buffer in sun8i_ce_hash_run(), simply using memcpy(). 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 --- drivers/crypto/allwinner/sun8i-ce/sun8i-ce-core.c | 6 ------ 1 file changed, 6 deletions(-) diff --git a/drivers/crypto/allwinner/sun8i-ce/sun8i-ce-core.c b/drivers/crypto/allwinner/sun8i-ce/sun8i-ce-core.c index 1741758e03eb..0408b2d5d533 100644 --- a/drivers/crypto/allwinner/sun8i-ce/sun8i-ce-core.c +++ b/drivers/crypto/allwinner/sun8i-ce/sun8i-ce-core.c @@ -414,7 +414,6 @@ static struct sun8i_ce_alg_template ce_algs[] = { .cra_name = "md5", .cra_driver_name = "md5-sun8i-ce", .cra_priority = 300, - .cra_alignmask = 3, .cra_flags = CRYPTO_ALG_TYPE_AHASH | CRYPTO_ALG_ASYNC | CRYPTO_ALG_NEED_FALLBACK, @@ -448,7 +447,6 @@ static struct sun8i_ce_alg_template ce_algs[] = { .cra_name = "sha1", .cra_driver_name = "sha1-sun8i-ce", .cra_priority = 300, - .cra_alignmask = 3, .cra_flags = CRYPTO_ALG_TYPE_AHASH | CRYPTO_ALG_ASYNC | CRYPTO_ALG_NEED_FALLBACK, @@ -481,7 +479,6 @@ static struct sun8i_ce_alg_template ce_algs[] = { .cra_name = "sha224", .cra_driver_name = "sha224-sun8i-ce", .cra_priority = 300, - .cra_alignmask = 3, .cra_flags = CRYPTO_ALG_TYPE_AHASH | CRYPTO_ALG_ASYNC | CRYPTO_ALG_NEED_FALLBACK, @@ -514,7 +511,6 @@ static struct sun8i_ce_alg_template ce_algs[] = { .cra_name = "sha256", .cra_driver_name = "sha256-sun8i-ce", .cra_priority = 300, - .cra_alignmask = 3, .cra_flags = CRYPTO_ALG_TYPE_AHASH | CRYPTO_ALG_ASYNC | CRYPTO_ALG_NEED_FALLBACK, @@ -547,7 +543,6 @@ static struct sun8i_ce_alg_template ce_algs[] = { .cra_name = "sha384", .cra_driver_name = "sha384-sun8i-ce", .cra_priority = 300, - .cra_alignmask = 3, .cra_flags = CRYPTO_ALG_TYPE_AHASH | CRYPTO_ALG_ASYNC | CRYPTO_ALG_NEED_FALLBACK, @@ -580,7 +575,6 @@ static struct sun8i_ce_alg_template ce_algs[] = { .cra_name = "sha512", .cra_driver_name = "sha512-sun8i-ce", .cra_priority = 300, - .cra_alignmask = 3, .cra_flags = CRYPTO_ALG_TYPE_AHASH | CRYPTO_ALG_ASYNC | CRYPTO_ALG_NEED_FALLBACK,