From a5e12d04e5226cd7afecd020a4f66d7ac73fd90e Mon Sep 17 00:00:00 2001 From: Eric Biggers Date: Sun, 22 Oct 2023 01:10:35 -0700 Subject: crypto: atmel - 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 atmel driver no longer use it. This driver didn't actually rely on it; it only writes to the result buffer in atmel_sha_copy_ready_hash(), simply using memcpy(). And this driver didn't set an alignmask for any keyed hash algorithms, so the key buffer need not be considered. Signed-off-by: Eric Biggers Signed-off-by: Herbert Xu --- drivers/crypto/atmel-sha.c | 2 -- 1 file changed, 2 deletions(-) (limited to 'drivers/crypto/atmel-sha.c') diff --git a/drivers/crypto/atmel-sha.c b/drivers/crypto/atmel-sha.c index ad45af288ece..f4cd6158a4f7 100644 --- a/drivers/crypto/atmel-sha.c +++ b/drivers/crypto/atmel-sha.c @@ -1300,7 +1300,6 @@ static struct ahash_alg sha_384_512_algs[] = { .halg.base.cra_name = "sha384", .halg.base.cra_driver_name = "atmel-sha384", .halg.base.cra_blocksize = SHA384_BLOCK_SIZE, - .halg.base.cra_alignmask = 0x3, .halg.digestsize = SHA384_DIGEST_SIZE, }, @@ -1308,7 +1307,6 @@ static struct ahash_alg sha_384_512_algs[] = { .halg.base.cra_name = "sha512", .halg.base.cra_driver_name = "atmel-sha512", .halg.base.cra_blocksize = SHA512_BLOCK_SIZE, - .halg.base.cra_alignmask = 0x3, .halg.digestsize = SHA512_DIGEST_SIZE, }, -- cgit