add wifi6 8852be driver

hc

2024-12-19 9370bb92b2d16684ee45cf24e879c93c509162da

 kernel/crypto/pcbc.c
..
..
@@ -1,3 +1,4 @@
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+// SPDX-License-Identifier: GPL-2.0-or-later
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 /*
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  * PCBC: Propagating Cipher Block Chaining mode
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  *
..
..
@@ -6,42 +7,15 @@
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  *
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  * Derived from cbc.c
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  * - Copyright (c) 2006 Herbert Xu <herbert@gondor.apana.org.au>
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- *
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- * This program is free software; you can redistribute it and/or modify it
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- * under the terms of the GNU General Public License as published by the Free
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- * Software Foundation; either version 2 of the License, or (at your option)
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- * any later version.
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- *
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10
  */
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11
 
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 #include <crypto/algapi.h>
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+#include <crypto/internal/cipher.h>
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14
 #include <crypto/internal/skcipher.h>
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15
 #include <linux/err.h>
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16
 #include <linux/init.h>
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 #include <linux/kernel.h>
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 #include <linux/module.h>
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-#include <linux/slab.h>
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-#include <linux/compiler.h>
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-
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-struct crypto_pcbc_ctx {
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-	struct crypto_cipher *child;
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-};
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-
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-static int crypto_pcbc_setkey(struct crypto_skcipher *parent, const u8 *key,
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-			      unsigned int keylen)
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-{
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-	struct crypto_pcbc_ctx *ctx = crypto_skcipher_ctx(parent);
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-	struct crypto_cipher *child = ctx->child;
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-	int err;
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-
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-	crypto_cipher_clear_flags(child, CRYPTO_TFM_REQ_MASK);
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-	crypto_cipher_set_flags(child, crypto_skcipher_get_flags(parent) &
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-				       CRYPTO_TFM_REQ_MASK);
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-	err = crypto_cipher_setkey(child, key, keylen);
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-	crypto_skcipher_set_flags(parent, crypto_cipher_get_flags(child) &
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-					  CRYPTO_TFM_RES_MASK);
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-	return err;
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-}
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19
 
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 static int crypto_pcbc_encrypt_segment(struct skcipher_request *req,
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21
 				       struct skcipher_walk *walk,
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@@ -90,8 +64,7 @@
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 static int crypto_pcbc_encrypt(struct skcipher_request *req)
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 {
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 	struct crypto_skcipher *tfm = crypto_skcipher_reqtfm(req);
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-	struct crypto_pcbc_ctx *ctx = crypto_skcipher_ctx(tfm);
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-	struct crypto_cipher *child = ctx->child;
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+	struct crypto_cipher *cipher = skcipher_cipher_simple(tfm);
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 	struct skcipher_walk walk;
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 	unsigned int nbytes;
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 	int err;
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@@ -101,10 +74,10 @@
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 	while ((nbytes = walk.nbytes)) {
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 		if (walk.src.virt.addr == walk.dst.virt.addr)
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 			nbytes = crypto_pcbc_encrypt_inplace(req, &walk,
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-							     child);
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+							     cipher);
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 		else
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 			nbytes = crypto_pcbc_encrypt_segment(req, &walk,
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-							     child);
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+							     cipher);
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 		err = skcipher_walk_done(&walk, nbytes);
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 	}
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83
 
..
..
@@ -158,8 +131,7 @@
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 static int crypto_pcbc_decrypt(struct skcipher_request *req)
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132
 {
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 	struct crypto_skcipher *tfm = crypto_skcipher_reqtfm(req);
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-	struct crypto_pcbc_ctx *ctx = crypto_skcipher_ctx(tfm);
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-	struct crypto_cipher *child = ctx->child;
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+	struct crypto_cipher *cipher = skcipher_cipher_simple(tfm);
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 	struct skcipher_walk walk;
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 	unsigned int nbytes;
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 	int err;
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@@ -169,117 +141,33 @@
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 	while ((nbytes = walk.nbytes)) {
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142
 		if (walk.src.virt.addr == walk.dst.virt.addr)
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 			nbytes = crypto_pcbc_decrypt_inplace(req, &walk,
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-							     child);
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+							     cipher);
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 		else
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 			nbytes = crypto_pcbc_decrypt_segment(req, &walk,
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-							     child);
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+							     cipher);
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148
 		err = skcipher_walk_done(&walk, nbytes);
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149
 	}
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150
 
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151
 	return err;
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 }
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153
 
182
-static int crypto_pcbc_init_tfm(struct crypto_skcipher *tfm)
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-{
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-	struct skcipher_instance *inst = skcipher_alg_instance(tfm);
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-	struct crypto_spawn *spawn = skcipher_instance_ctx(inst);
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-	struct crypto_pcbc_ctx *ctx = crypto_skcipher_ctx(tfm);
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-	struct crypto_cipher *cipher;
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-
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-	cipher = crypto_spawn_cipher(spawn);
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-	if (IS_ERR(cipher))
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-		return PTR_ERR(cipher);
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-
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-	ctx->child = cipher;
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-	return 0;
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-}
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-
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-static void crypto_pcbc_exit_tfm(struct crypto_skcipher *tfm)
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-{
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-	struct crypto_pcbc_ctx *ctx = crypto_skcipher_ctx(tfm);
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-
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-	crypto_free_cipher(ctx->child);
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-}
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-
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-static void crypto_pcbc_free(struct skcipher_instance *inst)
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-{
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-	crypto_drop_skcipher(skcipher_instance_ctx(inst));
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-	kfree(inst);
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-}
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-
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154
 static int crypto_pcbc_create(struct crypto_template *tmpl, struct rtattr **tb)
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 {
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 	struct skcipher_instance *inst;
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-	struct crypto_attr_type *algt;
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-	struct crypto_spawn *spawn;
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-	struct crypto_alg *alg;
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 	int err;
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158
 
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-	algt = crypto_get_attr_type(tb);
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-	if (IS_ERR(algt))
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-		return PTR_ERR(algt);
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+	inst = skcipher_alloc_instance_simple(tmpl, tb);
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+	if (IS_ERR(inst))
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+		return PTR_ERR(inst);
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162
 
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-	if (((algt->type ^ CRYPTO_ALG_TYPE_SKCIPHER) & algt->mask) &
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-	    ~CRYPTO_ALG_INTERNAL)
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-		return -EINVAL;
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-
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-	inst = kzalloc(sizeof(*inst) + sizeof(*spawn), GFP_KERNEL);
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-	if (!inst)
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-		return -ENOMEM;
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-
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-	alg = crypto_get_attr_alg(tb, CRYPTO_ALG_TYPE_CIPHER |
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-				      (algt->type & CRYPTO_ALG_INTERNAL),
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-				  CRYPTO_ALG_TYPE_MASK |
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-				  (algt->mask & CRYPTO_ALG_INTERNAL));
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-	err = PTR_ERR(alg);
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-	if (IS_ERR(alg))
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-		goto err_free_inst;
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-
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-	spawn = skcipher_instance_ctx(inst);
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-	err = crypto_init_spawn(spawn, alg, skcipher_crypto_instance(inst),
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-				CRYPTO_ALG_TYPE_MASK);
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-	if (err)
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-		goto err_put_alg;
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-
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-	err = crypto_inst_setname(skcipher_crypto_instance(inst), "pcbc", alg);
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-	if (err)
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-		goto err_drop_spawn;
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-
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-	inst->alg.base.cra_flags = alg->cra_flags & CRYPTO_ALG_INTERNAL;
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-	inst->alg.base.cra_priority = alg->cra_priority;
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-	inst->alg.base.cra_blocksize = alg->cra_blocksize;
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-	inst->alg.base.cra_alignmask = alg->cra_alignmask;
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-
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-	inst->alg.ivsize = alg->cra_blocksize;
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-	inst->alg.min_keysize = alg->cra_cipher.cia_min_keysize;
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-	inst->alg.max_keysize = alg->cra_cipher.cia_max_keysize;
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-
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-	inst->alg.base.cra_ctxsize = sizeof(struct crypto_pcbc_ctx);
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-
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-	inst->alg.init = crypto_pcbc_init_tfm;
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-	inst->alg.exit = crypto_pcbc_exit_tfm;
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-
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-	inst->alg.setkey = crypto_pcbc_setkey;
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163
 	inst->alg.encrypt = crypto_pcbc_encrypt;
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164
 	inst->alg.decrypt = crypto_pcbc_decrypt;
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165
 
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-	inst->free = crypto_pcbc_free;
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-
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 	err = skcipher_register_instance(tmpl, inst);
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167
 	if (err)
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-		goto err_drop_spawn;
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-	crypto_mod_put(alg);
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+		inst->free(inst);
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169
 
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-out:
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170
 	return err;
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-
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-err_drop_spawn:
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-	crypto_drop_spawn(spawn);
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-err_put_alg:
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-	crypto_mod_put(alg);
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-err_free_inst:
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-	kfree(inst);
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-	goto out;
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171
 }
284
172
 
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 static struct crypto_template crypto_pcbc_tmpl = {
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..
@@ -298,9 +186,10 @@
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186
 	crypto_unregister_template(&crypto_pcbc_tmpl);
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187
 }
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188
 
301
-module_init(crypto_pcbc_module_init);
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+subsys_initcall(crypto_pcbc_module_init);
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190
 module_exit(crypto_pcbc_module_exit);
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191
 
304
192
 MODULE_LICENSE("GPL");
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-MODULE_DESCRIPTION("PCBC block cipher algorithm");
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+MODULE_DESCRIPTION("PCBC block cipher mode of operation");
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194
 MODULE_ALIAS_CRYPTO("pcbc");
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+MODULE_IMPORT_NS(CRYPTO_INTERNAL);