From 17f34f0ec96783851abcabf9878f8237ac67e4e7 Mon Sep 17 00:00:00 2001 From: "David S. Miller" Date: Mon, 14 May 2007 02:01:52 -0700 Subject: [PATCH] [SPARC64]: Add missing cpus_empty() check in hypervisor xcall handling. Signed-off-by: David S. Miller --- arch/sparc64/kernel/smp.c | 3 +++ 1 file changed, 3 insertions(+) diff --git a/arch/sparc64/kernel/smp.c b/arch/sparc64/kernel/smp.c index 8087d67..24fdf1d 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. -- 2.7.4