[patch 01/10] t add cast to regain ablkcipher_request from private ctx

[Sebastian Siewior <cbe-oss-dev@ml.breakpoint.cc>]

[-- Attachment #1: crypto_add_casts.diff --]
[-- Type: text/plain, Size: 610 bytes --]

This cast allows to regain the struct ablkcipher_request for a request 
from private data.

Signed-off-by: Sebastian Siewior <linux-crypto@ml.breakpoint.cc>
--- a/include/linux/crypto.h
+++ b/include/linux/crypto.h
@@ -580,6 +580,12 @@ static inline struct ablkcipher_request 
 	return container_of(req, struct ablkcipher_request, base);
 }
 
+static inline struct ablkcipher_request *ablkcipher_ctx_cast(
+		void *ctx)
+{
+	return container_of(ctx, struct ablkcipher_request, __ctx);
+}
+
 static inline struct ablkcipher_request *ablkcipher_request_alloc(
 	struct crypto_ablkcipher *tfm, gfp_t gfp)
 {

--