genirq: spurious.c: use time_* macros
The functions time_before, time_before_eq, time_after, and
time_after_eq are more robust for comparing jiffies against other
values.
So following patch implements usage of the time_after() macro, defined
at linux/jiffies.h, which deals with wrapping correctly
Signed-off-by: S.Caglar Onur <caglar@pardus.org.tr>
Acked-by: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
diff --git a/kernel/irq/spurious.c b/kernel/irq/spurious.c
index a6b2bc8..088dabb 100644
--- a/kernel/irq/spurious.c
+++ b/kernel/irq/spurious.c
@@ -6,6 +6,7 @@
* This file contains spurious interrupt handling.
*/
+#include <linux/jiffies.h>
#include <linux/irq.h>
#include <linux/module.h>
#include <linux/kallsyms.h>
@@ -179,7 +180,7 @@
* otherwise the couter becomes a doomsday timer for otherwise
* working systems
*/
- if (jiffies - desc->last_unhandled > HZ/10)
+ if (time_after(jiffies, desc->last_unhandled + HZ/10))
desc->irqs_unhandled = 1;
else
desc->irqs_unhandled++;