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-rw-r--r--arch/x86/kernel/fpu/bugs.c16
1 files changed, 5 insertions, 11 deletions
diff --git a/arch/x86/kernel/fpu/bugs.c b/arch/x86/kernel/fpu/bugs.c
index dd9ca9b60ff3..aad34aafc0e0 100644
--- a/arch/x86/kernel/fpu/bugs.c
+++ b/arch/x86/kernel/fpu/bugs.c
@@ -21,11 +21,15 @@ static double __initdata y = 3145727.0;
* We should really only care about bugs here
* anyway. Not features.
*/
-static void __init check_fpu(void)
+void __init fpu__init_check_bugs(void)
{
u32 cr0_saved;
s32 fdiv_bug;
+ /* kernel_fpu_begin/end() relies on patched alternative instructions. */
+ if (!boot_cpu_has(X86_FEATURE_FPU))
+ return;
+
/* We might have CR0::TS set already, clear it: */
cr0_saved = read_cr0();
write_cr0(cr0_saved & ~X86_CR0_TS);
@@ -59,13 +63,3 @@ static void __init check_fpu(void)
pr_warn("Hmm, FPU with FDIV bug\n");
}
}
-
-void __init fpu__init_check_bugs(void)
-{
- /*
- * kernel_fpu_begin/end() in check_fpu() relies on the patched
- * alternative instructions.
- */
- if (cpu_has_fpu)
- check_fpu();
-}