x86/xen: fix 'nopvspin' build error

Fix build error in x86/xen/ when PARAVIRT_SPINLOCKS is not enabled.

Fixes this build error:

../arch/x86/xen/smp_hvm.c: In function ‘xen_hvm_smp_init’:
../arch/x86/xen/smp_hvm.c:77:3: error: ‘nopvspin’ undeclared (first use in this function)
   nopvspin = true;

Fixes: 3d7746bea925 ("x86/xen: Fix xen_hvm_smp_init() when vector callback not available")
Signed-off-by: Randy Dunlap <[email protected]>
Reviewed-by: Juergen Gross <[email protected]>
Cc: David Woodhouse <[email protected]>
Cc: Juergen Gross <[email protected]>
Link: https://lore.kernel.org/r/[email protected]
Signed-off-by: Juergen Gross <[email protected]>

diff --git a/arch/x86/xen/smp_hvm.c b/arch/x86/xen/smp_hvm.c
index 056430a1080bbcab9a575f06b2c78cc657cf421b..6ff3c887e0b99523cd69774b8de8f3009f69d92f 100644 (file)
--- a/arch/x86/xen/smp_hvm.c
+++ b/arch/x86/xen/smp_hvm.c
@@ -74,7 +74,9 @@ void __init xen_hvm_smp_init(void)
        smp_ops.cpu_die = xen_hvm_cpu_die;
 
        if (!xen_have_vector_callback) {
+#ifdef CONFIG_PARAVIRT_SPINLOCKS
                nopvspin = true;
+#endif
                return;
        }