add at24 driver

hc

2023-11-06 15ade055295d13f95d49e3d99b09f3bbfb4a43e7

 kernel/arch/x86/crypto/cast5_avx_glue.c
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@@ -61,7 +61,7 @@
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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 = false;
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+	bool fpu_enabled;
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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 +76,7 @@
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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(fpu_enabled, &walk, nbytes);
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+		fpu_enabled = cast5_fpu_begin(false, &walk, nbytes);
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 		/* Process multi-block batch */
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 		if (nbytes >= bsize * CAST5_PARALLEL_BLOCKS) {
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@@ -105,10 +105,9 @@
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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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@@ -212,7 +211,7 @@
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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 = false;
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+	bool fpu_enabled;
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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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@@ -220,12 +219,11 @@
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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(fpu_enabled, &walk, nbytes);
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+		fpu_enabled = cast5_fpu_begin(false, &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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@@ -292,7 +290,7 @@
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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 = false;
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+	bool fpu_enabled;
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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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@@ -300,12 +298,11 @@
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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(fpu_enabled, &walk, nbytes);
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+		fpu_enabled = cast5_fpu_begin(false, &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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-
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-	cast5_fpu_end(fpu_enabled);
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 	if (walk.nbytes) {
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 		ctr_crypt_final(&walk, ctx);