crypto: api - Add crypto_alg_extsize helper
This patch adds a crypto_alg_extsize helper that can be used
by algorithm types such as pcompress and shash.
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
diff --git a/crypto/algapi.c b/crypto/algapi.c
index d2627a3..a60f626 100644
--- a/crypto/algapi.c
+++ b/crypto/algapi.c
@@ -964,6 +964,12 @@
}
EXPORT_SYMBOL_GPL(crypto_xor);
+unsigned int crypto_alg_extsize(struct crypto_alg *alg)
+{
+ return alg->cra_ctxsize;
+}
+EXPORT_SYMBOL_GPL(crypto_alg_extsize);
+
static int __init crypto_algapi_init(void)
{
crypto_init_proc();