These changes are the raw update to linux-4.4.6-rt14. Kernel sources

[kvmfornfv.git] / kernel / arch / x86 / crypto / serpent_avx2_glue.c

diff --git a/kernel/arch/x86/crypto/serpent_avx2_glue.c b/kernel/arch/x86/crypto/serpent_avx2_glue.c
index 2f63dc8..6d19834 100644 (file)
--- a/kernel/arch/x86/crypto/serpent_avx2_glue.c
+++ b/kernel/arch/x86/crypto/serpent_avx2_glue.c
@@ -20,8 +20,7 @@
 #include <crypto/lrw.h>
 #include <crypto/xts.h>
 #include <crypto/serpent.h>
-#include <asm/xcr.h>
-#include <asm/xsave.h>
+#include <asm/fpu/api.h>
 #include <asm/crypto/serpent-avx.h>
 #include <asm/crypto/glue_helper.h>
 
@@ -537,16 +536,15 @@ static struct crypto_alg srp_algs[10] = { {
 
 static int __init init(void)
 {
-       u64 xcr0;
+       const char *feature_name;
 
        if (!cpu_has_avx2 || !cpu_has_osxsave) {
                pr_info("AVX2 instructions are not detected.\n");
                return -ENODEV;
        }
-
-       xcr0 = xgetbv(XCR_XFEATURE_ENABLED_MASK);
-       if ((xcr0 & (XSTATE_SSE | XSTATE_YMM)) != (XSTATE_SSE | XSTATE_YMM)) {
-               pr_info("AVX detected but unusable.\n");
+       if (!cpu_has_xfeatures(XFEATURE_MASK_SSE | XFEATURE_MASK_YMM,
+                               &feature_name)) {
+               pr_info("CPU feature '%s' is not supported.\n", feature_name);
                return -ENODEV;
        }