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-rw-r--r--arch/x86/crypto/crc32c-intel.c11
1 files changed, 8 insertions, 3 deletions
diff --git a/arch/x86/crypto/crc32c-intel.c b/arch/x86/crypto/crc32c-intel.c
index b9d00261703c..493f959261f7 100644
--- a/arch/x86/crypto/crc32c-intel.c
+++ b/arch/x86/crypto/crc32c-intel.c
@@ -31,6 +31,7 @@
31#include <crypto/internal/hash.h> 31#include <crypto/internal/hash.h>
32 32
33#include <asm/cpufeature.h> 33#include <asm/cpufeature.h>
34#include <asm/cpu_device_id.h>
34 35
35#define CHKSUM_BLOCK_SIZE 1 36#define CHKSUM_BLOCK_SIZE 1
36#define CHKSUM_DIGEST_SIZE 4 37#define CHKSUM_DIGEST_SIZE 4
@@ -173,13 +174,17 @@ static struct shash_alg alg = {
173 } 174 }
174}; 175};
175 176
177static const struct x86_cpu_id crc32c_cpu_id[] = {
178 X86_FEATURE_MATCH(X86_FEATURE_XMM4_2),
179 {}
180};
181MODULE_DEVICE_TABLE(x86cpu, crc32c_cpu_id);
176 182
177static int __init crc32c_intel_mod_init(void) 183static int __init crc32c_intel_mod_init(void)
178{ 184{
179 if (cpu_has_xmm4_2) 185 if (!x86_match_cpu(crc32c_cpu_id))
180 return crypto_register_shash(&alg);
181 else
182 return -ENODEV; 186 return -ENODEV;
187 return crypto_register_shash(&alg);
183} 188}
184 189
185static void __exit crc32c_intel_mod_fini(void) 190static void __exit crc32c_intel_mod_fini(void)