Fix build with SMP disabled and preemption enabled.

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

diff --git a/arch/mips/kernel/gdb-stub.c b/arch/mips/kernel/gdb-stub.c
index d3fd1ab14274c25daeaa1fce41159f5b3a07d9d5..7c46b336c7db876b0e90bd7ddfa255122a4af259 100644 (file)
--- 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;