add ax88772_rst

hc

2024-05-10 9999e48639b3cecb08ffb37358bcba3b48161b29

 kernel/arch/x86/crypto/cast5_avx_glue.c
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@@ -1,24 +1,9 @@
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+// SPDX-License-Identifier: GPL-2.0-or-later
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 /*
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- * Glue Code for the AVX assembler implemention of the Cast5 Cipher
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+ * Glue Code for the AVX assembler implementation of the Cast5 Cipher
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  *
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  * Copyright (C) 2012 Johannes Goetzfried
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  *     <Johannes.Goetzfried@informatik.stud.uni-erlangen.de>
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- *
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- * This program is free software; you can redistribute it and/or modify
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- * it under the terms of the GNU General Public License as published by
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- * the Free Software Foundation; either version 2 of the License, or
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- * (at your option) any later version.
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- *
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- * This program is distributed in the hope that it will be useful,
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- * but WITHOUT ANY WARRANTY; without even the implied warranty of
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- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
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- * GNU General Public License for more details.
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- *
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- * You should have received a copy of the GNU General Public License
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- * along with this program; if not, write to the Free Software
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- * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307
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- * USA
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- *
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  */
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 #include <asm/crypto/glue_helper.h>
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@@ -61,7 +46,7 @@
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 static int ecb_crypt(struct skcipher_request *req, bool enc)
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 {
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-	bool fpu_enabled;
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+	bool fpu_enabled = false;
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 	struct crypto_skcipher *tfm = crypto_skcipher_reqtfm(req);
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 	struct cast5_ctx *ctx = crypto_skcipher_ctx(tfm);
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 	struct skcipher_walk walk;
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@@ -76,7 +61,7 @@
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 		u8 *wsrc = walk.src.virt.addr;
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 		u8 *wdst = walk.dst.virt.addr;
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-		fpu_enabled = cast5_fpu_begin(false, &walk, nbytes);
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+		fpu_enabled = cast5_fpu_begin(fpu_enabled, &walk, nbytes);
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 		/* Process multi-block batch */
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 		if (nbytes >= bsize * CAST5_PARALLEL_BLOCKS) {
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@@ -105,9 +90,10 @@
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 		} while (nbytes >= bsize);
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 done:
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-		cast5_fpu_end(fpu_enabled);
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 		err = skcipher_walk_done(&walk, nbytes);
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 	}
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+
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+	cast5_fpu_end(fpu_enabled);
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 	return err;
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 }
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@@ -211,7 +197,7 @@
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 {
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 	struct crypto_skcipher *tfm = crypto_skcipher_reqtfm(req);
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 	struct cast5_ctx *ctx = crypto_skcipher_ctx(tfm);
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-	bool fpu_enabled;
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+	bool fpu_enabled = false;
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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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@@ -219,11 +205,12 @@
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 	err = skcipher_walk_virt(&walk, req, false);
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 	while ((nbytes = walk.nbytes)) {
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-		fpu_enabled = cast5_fpu_begin(false, &walk, nbytes);
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+		fpu_enabled = cast5_fpu_begin(fpu_enabled, &walk, nbytes);
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 		nbytes = __cbc_decrypt(ctx, &walk);
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-		cast5_fpu_end(fpu_enabled);
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 		err = skcipher_walk_done(&walk, nbytes);
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 	}
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+
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+	cast5_fpu_end(fpu_enabled);
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 	return err;
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 }
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@@ -290,7 +277,7 @@
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 {
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 	struct crypto_skcipher *tfm = crypto_skcipher_reqtfm(req);
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 	struct cast5_ctx *ctx = crypto_skcipher_ctx(tfm);
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-	bool fpu_enabled;
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+	bool fpu_enabled = false;
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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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@@ -298,12 +285,13 @@
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 	err = skcipher_walk_virt(&walk, req, false);
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 	while ((nbytes = walk.nbytes) >= CAST5_BLOCK_SIZE) {
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-		fpu_enabled = cast5_fpu_begin(false, &walk, nbytes);
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+		fpu_enabled = cast5_fpu_begin(fpu_enabled, &walk, nbytes);
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 		nbytes = __ctr_crypt(&walk, ctx);
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-		cast5_fpu_end(fpu_enabled);
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 		err = skcipher_walk_done(&walk, nbytes);
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 	}
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+	cast5_fpu_end(fpu_enabled);
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+
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 	if (walk.nbytes) {
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 		ctr_crypt_final(&walk, ctx);
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 		err = skcipher_walk_done(&walk, 0);