disable cpu isolcpus

hc

2023-12-09 958e46acc8e900e8569dd467c1af9b8d2d019394

 kernel/crypto/salsa20_generic.c
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@@ -9,8 +9,8 @@
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  * Salsa20 is a stream cipher candidate in eSTREAM, the ECRYPT Stream
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  * Cipher Project. It is designed by Daniel J. Bernstein <djb@cr.yp.to>.
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  * More information about eSTREAM and Salsa20 can be found here:
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- *   http://www.ecrypt.eu.org/stream/
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- *   http://cr.yp.to/snuffle.html
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+ *   https://www.ecrypt.eu.org/stream/
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+ *   https://cr.yp.to/snuffle.html
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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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@@ -86,18 +86,17 @@
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 {
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 	__le32 stream[SALSA20_BLOCK_SIZE / sizeof(__le32)];
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-	if (dst != src)
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-		memcpy(dst, src, bytes);
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-
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 	while (bytes >= SALSA20_BLOCK_SIZE) {
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 		salsa20_block(state, stream);
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-		crypto_xor(dst, (const u8 *)stream, SALSA20_BLOCK_SIZE);
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+		crypto_xor_cpy(dst, src, (const u8 *)stream,
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+			       SALSA20_BLOCK_SIZE);
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 		bytes -= SALSA20_BLOCK_SIZE;
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 		dst += SALSA20_BLOCK_SIZE;
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+		src += SALSA20_BLOCK_SIZE;
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 	}
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 	if (bytes) {
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 		salsa20_block(state, stream);
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-		crypto_xor(dst, (const u8 *)stream, bytes);
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+		crypto_xor_cpy(dst, src, (const u8 *)stream, bytes);
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 	}
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 }
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@@ -159,7 +158,7 @@
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 	u32 state[16];
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 	int err;
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-	err = skcipher_walk_virt(&walk, req, true);
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+	err = skcipher_walk_virt(&walk, req, false);
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 	salsa20_init(state, ctx, req->iv);
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@@ -204,7 +203,7 @@
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 	crypto_unregister_skcipher(&alg);
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 }
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-module_init(salsa20_generic_mod_init);
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+subsys_initcall(salsa20_generic_mod_init);
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 module_exit(salsa20_generic_mod_fini);
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 MODULE_LICENSE("GPL");