[PATCH 08/16] xtensa: traps: add <linux/cpu.h> for function prototype

[Randy Dunlap]

Use <linux/cpu.h> to provide the prototype for trap_init(), to prevent
a build warning:

arch/xtensa/kernel/traps.c:484:13: warning: no previous prototype for 'trap_init' [-Wmissing-prototypes]
  484 | void __init trap_init(void)

Signed-off-by: Randy Dunlap <rdunlap@xxxxxxxxxxxxx>
Cc: Chris Zankel <chris@xxxxxxxxxx>
Cc: Max Filippov <jcmvbkbc@xxxxxxxxx>
---
 arch/xtensa/kernel/traps.c |    1 +
 1 file changed, 1 insertion(+)

diff -- a/arch/xtensa/kernel/traps.c b/arch/xtensa/kernel/traps.c
--- a/arch/xtensa/kernel/traps.c
+++ b/arch/xtensa/kernel/traps.c
@@ -23,6 +23,7 @@
  * for more details.
  */
 
+#include <linux/cpu.h>
 #include <linux/kernel.h>
 #include <linux/sched/signal.h>
 #include <linux/sched/debug.h>