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authorHerbert Xu <herbert@gondor.apana.org.au>2009-07-24 15:26:15 +0800
committerHerbert Xu <herbert@gondor.apana.org.au>2009-07-24 15:26:15 +0800
commitab300465676b0c0559af62d57ec9a902f5680b03 (patch)
treefde296526e6563ac8d11662d431eb2168d031614 /include/crypto
parent0b767b4df360bd442434d9d40b8a495e64202254 (diff)
downloadlinux-linaro-ab300465676b0c0559af62d57ec9a902f5680b03.tar.gz
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>
Diffstat (limited to 'include/crypto')
-rw-r--r--include/crypto/algapi.h8
1 files changed, 2 insertions, 6 deletions
diff --git a/include/crypto/algapi.h b/include/crypto/algapi.h
index 9de6c38f406..3f388146a91 100644
--- a/include/crypto/algapi.h
+++ b/include/crypto/algapi.h
@@ -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(