diff --git a/include/crypto/internal/hash.h b/include/crypto/internal/hash.h
index f1041140d3d9e40512b623e41a0e2675ae6cd5be..3af34ca8e8bcbcf217187824774bf55481101b68 100644
--- a/include/crypto/internal/hash.h
+++ b/include/crypto/internal/hash.h
@@ -128,5 +128,10 @@ static inline void *crypto_shash_ctx_aligned(struct crypto_shash *tfm)
 	return crypto_tfm_ctx_aligned(&tfm->base);
 }
 
+static inline struct crypto_shash *__crypto_shash_cast(struct crypto_tfm *tfm)
+{
+	return (struct crypto_shash *)tfm;
+}
+
 #endif	/* _CRYPTO_INTERNAL_HASH_H */