From: Randy Dunlap rdunlap@infradead.org
[ Upstream commit bd9dcef67ffcae2de49e319fba349df76472fd10 ]
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 rdunlap@infradead.org Reviewed-by: Juergen Gross jgross@suse.com Cc: David Woodhouse dwmw@amazon.co.uk Cc: Juergen Gross jgross@suse.com Link: https://lore.kernel.org/r/20210115191123.27572-1-rdunlap@infradead.org Signed-off-by: Juergen Gross jgross@suse.com Signed-off-by: Sasha Levin sashal@kernel.org --- arch/x86/xen/smp_hvm.c | 2 ++ 1 file changed, 2 insertions(+)
diff --git a/arch/x86/xen/smp_hvm.c b/arch/x86/xen/smp_hvm.c index 056430a1080bb..6ff3c887e0b99 100644 --- 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; }