Update Linux to v5.4.2

Change-Id: Idf6911045d9d382da2cfe01b1edff026404ac8fd
diff --git a/include/crypto/algapi.h b/include/crypto/algapi.h
index bd5e8cc..e5bd302 100644
--- a/include/crypto/algapi.h
+++ b/include/crypto/algapi.h
@@ -1,13 +1,8 @@
+/* SPDX-License-Identifier: GPL-2.0-or-later */
 /*
  * Cryptographic API for algorithms (i.e., low-level API).
  *
  * Copyright (c) 2006 Herbert Xu <herbert@gondor.apana.org.au>
- *
- * This program is free software; you can redistribute it and/or modify it
- * under the terms of the GNU General Public License as published by the Free
- * Software Foundation; either version 2 of the License, or (at your option) 
- * any later version.
- *
  */
 #ifndef _CRYPTO_ALGAPI_H
 #define _CRYPTO_ALGAPI_H
@@ -20,8 +15,10 @@
 /*
  * Maximum values for blocksize and alignmask, used to allocate
  * static buffers that are big enough for any combination of
- * ciphers and architectures.
+ * algs and architectures. Ciphers have a lower maximum size.
  */
+#define MAX_ALGAPI_BLOCKSIZE		160
+#define MAX_ALGAPI_ALIGNMASK		63
 #define MAX_CIPHER_BLOCKSIZE		16
 #define MAX_CIPHER_ALIGNMASK		15
 
@@ -141,7 +138,9 @@
 void crypto_mod_put(struct crypto_alg *alg);
 
 int crypto_register_template(struct crypto_template *tmpl);
+int crypto_register_templates(struct crypto_template *tmpls, int count);
 void crypto_unregister_template(struct crypto_template *tmpl);
+void crypto_unregister_templates(struct crypto_template *tmpls, int count);
 struct crypto_template *crypto_lookup_template(const char *name);
 
 int crypto_register_instance(struct crypto_template *tmpl,
@@ -183,16 +182,13 @@
 int crypto_attr_u32(struct rtattr *rta, u32 *num);
 int crypto_inst_setname(struct crypto_instance *inst, const char *name,
 			struct crypto_alg *alg);
-void *crypto_alloc_instance2(const char *name, struct crypto_alg *alg,
-			     unsigned int head);
-struct crypto_instance *crypto_alloc_instance(const char *name,
-					      struct crypto_alg *alg);
+void *crypto_alloc_instance(const char *name, struct crypto_alg *alg,
+			    unsigned int head);
 
 void crypto_init_queue(struct crypto_queue *queue, unsigned int max_qlen);
 int crypto_enqueue_request(struct crypto_queue *queue,
 			   struct crypto_async_request *request);
 struct crypto_async_request *crypto_dequeue_request(struct crypto_queue *queue);
-int crypto_tfm_in_queue(struct crypto_queue *queue, struct crypto_tfm *tfm);
 static inline unsigned int crypto_queue_len(struct crypto_queue *queue)
 {
 	return queue->qlen;
@@ -374,12 +370,6 @@
 	return req->__ctx;
 }
 
-static inline int ablkcipher_tfm_in_queue(struct crypto_queue *queue,
-					  struct crypto_ablkcipher *tfm)
-{
-	return crypto_tfm_in_queue(queue, crypto_ablkcipher_tfm(tfm));
-}
-
 static inline struct crypto_alg *crypto_get_attr_alg(struct rtattr **tb,
 						     u32 type, u32 mask)
 {
@@ -419,10 +409,18 @@
 
 static inline void crypto_yield(u32 flags)
 {
-#if !defined(CONFIG_PREEMPT) || defined(CONFIG_PREEMPT_VOLUNTARY)
 	if (flags & CRYPTO_TFM_REQ_MAY_SLEEP)
 		cond_resched();
-#endif
 }
 
+int crypto_register_notifier(struct notifier_block *nb);
+int crypto_unregister_notifier(struct notifier_block *nb);
+
+/* Crypto notification events. */
+enum {
+	CRYPTO_MSG_ALG_REQUEST,
+	CRYPTO_MSG_ALG_REGISTER,
+	CRYPTO_MSG_ALG_LOADED,
+};
+
 #endif	/* _CRYPTO_ALGAPI_H */