genirq: Add IRQF_FORCE_RESUME

Xen needs to reenable interrupts which are marked IRQF_NO_SUSPEND in the
resume path. Add a flag to force the reenabling in the resume code.

Tested-and-acked-by: Ian Campbell <Ian.Campbell@eu.citrix.com>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>

1 files changed, 2 insertions, 1 deletions

diff --git a/include/linux/interrupt.h b/include/linux/interrupt.h
index 55e0d4253e49..d746da19c6a2 100644
--- a/include/linux/interrupt.h
+++ b/include/linux/interrupt.h
@@ -55,7 +55,7 @@
  *                Used by threaded interrupts which need to keep the
  *                irq line disabled until the threaded handler has been run.
  * IRQF_NO_SUSPEND - Do not disable this IRQ during suspend
- *
+ * IRQF_FORCE_RESUME - Force enable it on resume even if IRQF_NO_SUSPEND is set
  */
 #define IRQF_DISABLED           0x00000020
 #define IRQF_SAMPLE_RANDOM      0x00000040
@@ -67,6 +67,7 @@
 #define IRQF_IRQPOLL            0x00001000
 #define IRQF_ONESHOT            0x00002000
 #define IRQF_NO_SUSPEND         0x00004000
+#define IRQF_FORCE_RESUME       0x00008000
 
 #define IRQF_TIMER              (__IRQF_TIMER | IRQF_NO_SUSPEND)