[MIPS] SMP: Implement smp_call_function_mask().

Signed-off-by: Ralf Baechle <ralf@linux-mips.org>

1 files changed, 5 insertions, 5 deletions

diff --git a/arch/mips/kernel/gdb-stub.c b/arch/mips/kernel/gdb-stub.c
index c33f6f22d86a..bd128fab4b36 100644
--- a/arch/mips/kernel/gdb-stub.c
+++ b/arch/mips/kernel/gdb-stub.c
@@ -676,15 +676,18 @@ static void kgdb_wait(void *arg)
 static int kgdb_smp_call_kgdb_wait(void)
 {
 #ifdef CONFIG_SMP
+        cpumask_t mask = cpu_online_map;
         struct call_data_struct data;
-        int i, cpus = num_online_cpus() - 1;
         int cpu = smp_processor_id();
+        int cpus;
 
         /*
          * Can die spectacularly if this CPU isn't yet marked online
          */
         BUG_ON(!cpu_online(cpu));
 
+        cpu_clear(cpu, mask);
+        cpus = cpus_weight(mask);
         if (!cpus)
                 return 0;
 
@@ -711,10 +714,7 @@ static int kgdb_smp_call_kgdb_wait(void)
         call_data = &data;
         mb();
 
-        /* Send a message to all other CPUs and wait for them to respond */
-        for (i = 0; i < NR_CPUS; i++)
-                if (cpu_online(i) && i != cpu)
-                        core_send_ipi(i, SMP_CALL_FUNCTION);
+        core_send_ipi_mask(mask, SMP_CALL_FUNCTION);
 
         /* Wait for response */
         /* FIXME: lock-up detection, backtrace on lock-up */