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| author | Joel Fernandes <joelf@ti.com> | 2013-08-18 06:42:22 +0400 |
|---|---|---|
| committer | Herbert Xu <herbert@gondor.apana.org.au> | 2013-08-21 15:27:58 +0400 |
| commit | 257aff515409f9455edff3a946344e71baf9e116 (patch) | |
| tree | 01dea1b98b5d1534a2530698171e414e2bb1dfda /include/crypto/scatterwalk.h | |
| parent | b4eba0ca341fb6ad0199ab3f2244aa7e0c4cb34d (diff) | |
| download | linux-257aff515409f9455edff3a946344e71baf9e116.tar.xz | |
crypto: scatterwalk - Add support for calculating number of SG elements
Crypto layer only passes nbytes to encrypt but in omap-aes driver we need to
know number of SG elements to pass to dmaengine slave API. We add function for
the same to scatterwalk library.
Signed-off-by: Joel Fernandes <joelf@ti.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
Diffstat (limited to 'include/crypto/scatterwalk.h')
| -rw-r--r-- | include/crypto/scatterwalk.h | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/include/crypto/scatterwalk.h b/include/crypto/scatterwalk.h index 3744d2a642df..13621cc8cf4c 100644 --- a/include/crypto/scatterwalk.h +++ b/include/crypto/scatterwalk.h @@ -113,4 +113,6 @@ void scatterwalk_done(struct scatter_walk *walk, int out, int more); void scatterwalk_map_and_copy(void *buf, struct scatterlist *sg, unsigned int start, unsigned int nbytes, int out); +int scatterwalk_bytes_sglen(struct scatterlist *sg, int num_bytes); + #endif /* _CRYPTO_SCATTERWALK_H */ |