On 29/10/2023 06:15, Eric Biggers wrote:
From: Eric Biggers <ebiggers@xxxxxxxxxx>
The x86 SHA-1 module contains four implementations: SSSE3, AVX, AVX2,
and SHA-NI. Commit 1c43c0f1f84a ("crypto: x86/sha - load modules based
on CPU features") made the module be autoloaded when SSSE3, AVX, or AVX2
is detected. The omission of SHA-NI appears to be an oversight, perhaps
because of the outdated file-level comment. This patch fixes this,
though in practice this makes no difference because SSSE3 is a subset of
the other three features anyway. Indeed, sha1_ni_transform() executes
SSSE3 instructions such as pshufb.
Cc: Roxana Nicolescu <roxana.nicolescu@xxxxxxxxxxxxx>
Signed-off-by: Eric Biggers <ebiggers@xxxxxxxxxx>
Indeed, it was an oversight.
Reviewed-by: Roxana Nicolescu <roxana.nicolescu@xxxxxxxxxxxxx>
---
arch/x86/crypto/sha1_ssse3_glue.c | 5 +++--
1 file changed, 3 insertions(+), 2 deletions(-)
diff --git a/arch/x86/crypto/sha1_ssse3_glue.c b/arch/x86/crypto/sha1_ssse3_glue.c
index 959afa705e95..d88991f2cb3a 100644
--- a/arch/x86/crypto/sha1_ssse3_glue.c
+++ b/arch/x86/crypto/sha1_ssse3_glue.c
@@ -1,16 +1,16 @@
// SPDX-License-Identifier: GPL-2.0-or-later
/*
* Cryptographic API.
*
- * Glue code for the SHA1 Secure Hash Algorithm assembler implementation using
- * Supplemental SSE3 instructions.
+ * Glue code for the SHA1 Secure Hash Algorithm assembler implementations
+ * using SSSE3, AVX, AVX2, and SHA-NI instructions.
*
* This file is based on sha1_generic.c
*
* Copyright (c) Alan Smithee.
* Copyright (c) Andrew McDonald <andrew@xxxxxxxxxxxxxxx>
* Copyright (c) Jean-Francois Dive <jef@xxxxxxxxxxx>
* Copyright (c) Mathias Krause <minipli@xxxxxxxxxxxxxx>
* Copyright (c) Chandramouli Narayanan <mouli@xxxxxxxxxxxxxxx>
*/
@@ -21,20 +21,21 @@
#include <linux/init.h>
#include <linux/module.h>
#include <linux/mm.h>
#include <linux/types.h>
#include <crypto/sha1.h>
#include <crypto/sha1_base.h>
#include <asm/cpu_device_id.h>
#include <asm/simd.h>
static const struct x86_cpu_id module_cpu_ids[] = {
+ X86_MATCH_FEATURE(X86_FEATURE_SHA_NI, NULL),
X86_MATCH_FEATURE(X86_FEATURE_AVX2, NULL),
X86_MATCH_FEATURE(X86_FEATURE_AVX, NULL),
X86_MATCH_FEATURE(X86_FEATURE_SSSE3, NULL),
{}
};
MODULE_DEVICE_TABLE(x86cpu, module_cpu_ids);
static int sha1_update(struct shash_desc *desc, const u8 *data,
unsigned int len, sha1_block_fn *sha1_xform)
{
base-commit: f2b88bab69c86d4dab2bfd25a0e741d7df411f7a
