[PATCH v1 1/1] cpuidle: Update header inclusion

[Andy Shevchenko]

While cleaning up some headers, I got a build error on this file:

drivers/cpuidle/poll_state.c:52:2: error: call to undeclared library function 'snprintf' with type 'int (char *restrict, unsigned long, const char *restrict, ...)'; ISO C99 and later do not support implicit function declarations [-Wimplicit-function-declaration]

Update header inclusions to follow IWYU (Include What You Use)
principle.

Signed-off-by: Andy Shevchenko <andriy.shevchenko@xxxxxxxxxxxxxxx>
---
 drivers/cpuidle/poll_state.c | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/drivers/cpuidle/poll_state.c b/drivers/cpuidle/poll_state.c
index 9b6d90a72601..c7524e4c522a 100644
--- a/drivers/cpuidle/poll_state.c
+++ b/drivers/cpuidle/poll_state.c
@@ -4,9 +4,13 @@
  */
 
 #include <linux/cpuidle.h>
+#include <linux/export.h>
+#include <linux/irqflags.h>
 #include <linux/sched.h>
 #include <linux/sched/clock.h>
 #include <linux/sched/idle.h>
+#include <linux/sprintf.h>
+#include <linux/types.h>
 
 #define POLL_IDLE_RELAX_COUNT	200
 
-- 
2.50.1