diff options
| author | Herbert Xu <herbert@gondor.apana.org.au> | 2015-08-20 17:02:40 +0800 |
|---|---|---|
| committer | Herbert Xu <herbert@gondor.apana.org.au> | 2015-08-21 22:21:20 +0800 |
| commit | d4421c54c45f643731c92daa8e268ce74dcdf5a2 (patch) | |
| tree | f4fe2abda7788a5d524db09d507addb6f28e48b3 /include/crypto | |
| parent | 12773d932fc22c60e0d5a20660d564542fab811b (diff) | |
| download | linux-d4421c54c45f643731c92daa8e268ce74dcdf5a2.tar.bz2 | |
crypto: hash - Add AHASH_REQUEST_ON_STACK
This patch adds the helper AHASH_REQUEST_ON_STACK for those users
of ahash that are synchronous only.
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
Diffstat (limited to 'include/crypto')
| -rw-r--r-- | include/crypto/hash.h | 5 |
1 files changed, 5 insertions, 0 deletions
diff --git a/include/crypto/hash.h b/include/crypto/hash.h index 57c8a6ee33c2..8e920b44c0ac 100644 --- a/include/crypto/hash.h +++ b/include/crypto/hash.h @@ -63,6 +63,11 @@ struct ahash_request { void *__ctx[] CRYPTO_MINALIGN_ATTR; }; +#define AHASH_REQUEST_ON_STACK(name, ahash) \ + char __##name##_desc[sizeof(struct ahash_request) + \ + crypto_ahash_reqsize(ahash)] CRYPTO_MINALIGN_ATTR; \ + struct ahash_request *name = (void *)__##name##_desc + /** * struct ahash_alg - asynchronous message digest definition * @init: Initialize the transformation context. Intended only to initialize the |