Fix build with SMP disabled and preemption enabled.

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

1 files changed, 3 insertions, 0 deletions

diff --git a/arch/mips/kernel/gdb-stub.c b/arch/mips/kernel/gdb-stub.c
index d3fd1ab14274..7c46b336c7db 100644
--- a/arch/mips/kernel/gdb-stub.c
+++ b/arch/mips/kernel/gdb-stub.c
@@ -637,15 +637,18 @@ static struct gdb_bp_save async_bp;
  * and only one can be active at a time.
  */
 extern spinlock_t smp_call_lock;
+
 void set_async_breakpoint(unsigned long *epc)
 {
         /* skip breaking into userland */
         if ((*epc & 0x80000000) == 0)
                 return;
 
+#ifdef CONFIG_SMP
         /* avoid deadlock if someone is make IPC */
         if (spin_is_locked(&smp_call_lock))
                 return;
+#endif
 
         async_bp.addr = *epc;
         *epc = (unsigned long)async_breakpoint;