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2024-02-20 102a0743326a03cd1a1202ceda21e175b7d3575c

 kernel/arch/x86/crypto/blake2s-glue.c
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@@ -4,12 +4,13 @@
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  */
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 #include <crypto/internal/blake2s.h>
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-#include <crypto/internal/hash.h>
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+#include <crypto/internal/simd.h>
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 #include <linux/types.h>
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 #include <linux/jump_label.h>
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 #include <linux/kernel.h>
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 #include <linux/module.h>
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+#include <linux/sizes.h>
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 #include <asm/cpufeature.h>
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 #include <asm/fpu/api.h>
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@@ -26,14 +27,13 @@
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 static __ro_after_init DEFINE_STATIC_KEY_FALSE(blake2s_use_ssse3);
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 static __ro_after_init DEFINE_STATIC_KEY_FALSE(blake2s_use_avx512);
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-void blake2s_compress_arch(struct blake2s_state *state,
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-			   const u8 *block, size_t nblocks,
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-			   const u32 inc)
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+void blake2s_compress(struct blake2s_state *state, const u8 *block,
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+		      size_t nblocks, const u32 inc)
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 {
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 	/* SIMD disables preemption, so relax after processing each page. */
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 	BUILD_BUG_ON(SZ_4K / BLAKE2S_BLOCK_SIZE < 8);
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-	if (!static_branch_likely(&blake2s_use_ssse3) || !may_use_simd()) {
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+	if (!static_branch_likely(&blake2s_use_ssse3) || !crypto_simd_usable()) {
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 		blake2s_compress_generic(state, block, nblocks, inc);
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 		return;
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 	}
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@@ -54,49 +54,12 @@
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 		block += blocks * BLAKE2S_BLOCK_SIZE;
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 	} while (nblocks);
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 }
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-EXPORT_SYMBOL(blake2s_compress_arch);
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-
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-static int crypto_blake2s_update_x86(struct shash_desc *desc,
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-				     const u8 *in, unsigned int inlen)
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-{
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-	return crypto_blake2s_update(desc, in, inlen, blake2s_compress_arch);
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-}
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-
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-static int crypto_blake2s_final_x86(struct shash_desc *desc, u8 *out)
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-{
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-	return crypto_blake2s_final(desc, out, blake2s_compress_arch);
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-}
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-
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-#define BLAKE2S_ALG(name, driver_name, digest_size)			\
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-	{								\
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-		.base.cra_name		= name,				\
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-		.base.cra_driver_name	= driver_name,			\
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-		.base.cra_priority	= 200,				\
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-		.base.cra_flags		= CRYPTO_ALG_OPTIONAL_KEY,	\
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-		.base.cra_blocksize	= BLAKE2S_BLOCK_SIZE,		\
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-		.base.cra_ctxsize	= sizeof(struct blake2s_tfm_ctx), \
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-		.base.cra_module	= THIS_MODULE,			\
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-		.digestsize		= digest_size,			\
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-		.setkey			= crypto_blake2s_setkey,	\
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-		.init			= crypto_blake2s_init,		\
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-		.update			= crypto_blake2s_update_x86,	\
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-		.final			= crypto_blake2s_final_x86,	\
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-		.descsize		= sizeof(struct blake2s_state),	\
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-	}
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-
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-static struct shash_alg blake2s_algs[] = {
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-	BLAKE2S_ALG("blake2s-128", "blake2s-128-x86", BLAKE2S_128_HASH_SIZE),
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-	BLAKE2S_ALG("blake2s-160", "blake2s-160-x86", BLAKE2S_160_HASH_SIZE),
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-	BLAKE2S_ALG("blake2s-224", "blake2s-224-x86", BLAKE2S_224_HASH_SIZE),
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-	BLAKE2S_ALG("blake2s-256", "blake2s-256-x86", BLAKE2S_256_HASH_SIZE),
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-};
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+EXPORT_SYMBOL(blake2s_compress);
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 static int __init blake2s_mod_init(void)
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 {
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-	if (!boot_cpu_has(X86_FEATURE_SSSE3))
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-		return 0;
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-
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-	static_branch_enable(&blake2s_use_ssse3);
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+	if (boot_cpu_has(X86_FEATURE_SSSE3))
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+		static_branch_enable(&blake2s_use_ssse3);
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 	if (IS_ENABLED(CONFIG_AS_AVX512) &&
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 	    boot_cpu_has(X86_FEATURE_AVX) &&
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@@ -107,26 +70,9 @@
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 			      XFEATURE_MASK_AVX512, NULL))
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 		static_branch_enable(&blake2s_use_avx512);
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-	return IS_REACHABLE(CONFIG_CRYPTO_HASH) ?
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-		crypto_register_shashes(blake2s_algs,
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-					ARRAY_SIZE(blake2s_algs)) : 0;
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-}
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-
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-static void __exit blake2s_mod_exit(void)
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-{
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-	if (IS_REACHABLE(CONFIG_CRYPTO_HASH) && boot_cpu_has(X86_FEATURE_SSSE3))
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-		crypto_unregister_shashes(blake2s_algs, ARRAY_SIZE(blake2s_algs));
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+	return 0;
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 }
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 module_init(blake2s_mod_init);
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-module_exit(blake2s_mod_exit);
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-MODULE_ALIAS_CRYPTO("blake2s-128");
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-MODULE_ALIAS_CRYPTO("blake2s-128-x86");
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-MODULE_ALIAS_CRYPTO("blake2s-160");
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-MODULE_ALIAS_CRYPTO("blake2s-160-x86");
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-MODULE_ALIAS_CRYPTO("blake2s-224");
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-MODULE_ALIAS_CRYPTO("blake2s-224-x86");
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-MODULE_ALIAS_CRYPTO("blake2s-256");
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-MODULE_ALIAS_CRYPTO("blake2s-256-x86");
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 MODULE_LICENSE("GPL v2");