xen/mmu: Fix for linker errors when CONFIG_SMP is not defined.

commit 32dd11942aeb47f91209a446d6b10063c5b69389 upstream.

Simple enough - we use an extern defined symbol which is not
defined when CONFIG_SMP is not defined. This fixes the linker
dying.

Signed-off-by: Konrad Rzeszutek Wilk <konrad.wilk@oracle.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>

diff --git a/arch/x86/xen/mmu.c b/arch/x86/xen/mmu.c
index 7df2cb67e844019590cde053ce1b47bd77e1cadf..0d668d1bbbc473fa943fa0dd9f64b6f5ce550927 100644 (file)
--- a/arch/x86/xen/mmu.c
+++ b/arch/x86/xen/mmu.c
@@ -1354,7 +1354,11 @@ static void xen_flush_tlb_others(const struct cpumask *cpus,
 {
        struct {
                struct mmuext_op op;
+#ifdef CONFIG_SMP
                DECLARE_BITMAP(mask, num_processors);
+#else
+               DECLARE_BITMAP(mask, NR_CPUS);
+#endif
        } *args;
        struct multicall_space mcs;