path: root/include/crypto/algapi.h
diff options
authorHerbert Xu <herbert@gondor.apana.org.au>2006-08-12 21:56:17 +1000
committerHerbert Xu <herbert@gondor.apana.org.au>2006-09-21 11:41:52 +1000
commit5c64097aa0f6dc4f27718ef47ca9a12538d62860 (patch)
treed8c0cd3358464f589c9f2778b7be348f73db6950 /include/crypto/algapi.h
parentf28776a369b12f9a03a822a8e1090ed670a41f4f (diff)
[CRYPTO] scatterwalk: Prepare for block ciphers
This patch prepares the scatterwalk code for use by the new block cipher type. Firstly it halves the size of scatter_walk on 32-bit platforms. This is important as we allocate at least two of these objects on the stack for each block cipher operation. It also exports the symbols since the block cipher code can be built as a module. Finally there is a hack in scatterwalk_unmap that relies on progress being made. Unfortunately, for hardware crypto we can't guarantee progress to be made since the hardware can fail. So this also gets rid of the hack by not advancing the address returned by scatterwalk_map. Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
Diffstat (limited to 'include/crypto/algapi.h')
1 files changed, 5 insertions, 0 deletions
diff --git a/include/crypto/algapi.h b/include/crypto/algapi.h
index 6f9fb27b207..f21ae672e8a 100644
--- a/include/crypto/algapi.h
+++ b/include/crypto/algapi.h
@@ -50,6 +50,11 @@ struct crypto_spawn {
struct crypto_instance *inst;
+struct scatter_walk {
+ struct scatterlist *sg;
+ unsigned int offset;
int crypto_register_template(struct crypto_template *tmpl);
void crypto_unregister_template(struct crypto_template *tmpl);
struct crypto_template *crypto_lookup_template(const char *name);