[SPARC64]: Add missing cpus_empty() check in hypervisor xcall handling.

Signed-off-by: David S. Miller <davem@davemloft.net>

1 files changed, 3 insertions, 0 deletions

diff --git a/arch/sparc64/kernel/smp.c b/arch/sparc64/kernel/smp.c
index 8087d67a0cf8..24fdf1d0adc5 100644
--- a/arch/sparc64/kernel/smp.c
+++ b/arch/sparc64/kernel/smp.c
@@ -561,6 +561,9 @@ static void hypervisor_xcall_deliver(u64 data0, u64 data1, u64 data2, cpumask_t
         unsigned long flags, status;
         int cnt, retries, this_cpu, prev_sent, i;
 
+        if (cpus_empty(mask))
+                return;
+
         /* We have to do this whole thing with interrupts fully disabled.
          * Otherwise if we send an xcall from interrupt context it will
          * corrupt both our mondo block and cpu list state.