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crypto: api - Fix aligned ctx helper 

The aligned ctx helper was using a bogus alignment value thas was
one off the correct value.  Fortunately the current users do not
require anything beyond the natural alignment of the platform so
this hasn't caused a problem.

This patch fixes that and also removes the unnecessary minimum
check since if the alignment is less than the natural alignment
then the subsequent ALIGN operation should be a noop.

Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
This commit is contained in:
Herbert Xu 2009-07-24 15:26:15 +08:00
parent 0b767b4df3
commit ab30046567
1 changed files with 2 additions and 6 deletions
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8
include/crypto/algapi.h
View File

@ -175,12 +175,8 @@ int blkcipher_walk_virt_block(struct blkcipher_desc *desc,
static inline void *crypto_tfm_ctx_aligned(struct crypto_tfm *tfm)
{
unsigned long addr = (unsigned long)crypto_tfm_ctx(tfm);
unsigned long align = crypto_tfm_alg_alignmask(tfm);
if (align <= crypto_tfm_ctx_alignment())
align = 1;
return (void *)ALIGN(addr, align);
return PTR_ALIGN(crypto_tfm_ctx(tfm),
crypto_tfm_alg_alignmask(tfm) + 1);
}
static inline struct crypto_instance *crypto_tfm_alg_instance(