• Eric Biggers's avatar
    crypto: atmel - remove unnecessary alignmask for ahashes · a5e12d04
    Eric Biggers authored
    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: default avatarEric Biggers <ebiggers@google.com>
    Signed-off-by: default avatarHerbert Xu <herbert@gondor.apana.org.au>
    a5e12d04
atmel-sha.c 66.5 KB