crypto: x86/sha1 - autoload if SHA-NI detected

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because of the outdated file-level comment.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.

Reviewed-by: Roxana Nicolescu <roxana.nicolescu@canonical.com>
Signed-off-by: Eric Biggers <ebiggers@google.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>

diff --git a/arch/x86/crypto/sha1_ssse3_glue.c b/arch/x86/crypto/sha1_ssse3_glue.c
index 959afa705e95ca16699df719964bf222a10784e8..ab8bc54f254d37d66a55cbe8a70f8d8580082c84 100644 (file)
--- a/arch/x86/crypto/sha1_ssse3_glue.c
+++ b/arch/x86/crypto/sha1_ssse3_glue.c
@@ -2,8 +2,8 @@
 /*
  * 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
  *
@@ -28,6 +28,9 @@
 #include <asm/simd.h>
 
 static const struct x86_cpu_id module_cpu_ids[] = {
+#ifdef CONFIG_AS_SHA1_NI
+       X86_MATCH_FEATURE(X86_FEATURE_SHA_NI, NULL),
+#endif
        X86_MATCH_FEATURE(X86_FEATURE_AVX2, NULL),
        X86_MATCH_FEATURE(X86_FEATURE_AVX, NULL),
        X86_MATCH_FEATURE(X86_FEATURE_SSSE3, NULL),