drm: merge Linux master into HEAD

Conflicts:
	drivers/gpu/drm/drm_info.c
	drivers/gpu/drm/drm_proc.c
	drivers/gpu/drm/i915/i915_gem_debugfs.c

1 files changed, 10 insertions, 18 deletions

diff --git a/include/linux/irqreturn.h b/include/linux/irqreturn.h
index 881883c2009d..c5584ca5b8c9 100644
--- a/include/linux/irqreturn.h
+++ b/include/linux/irqreturn.h
@@ -1,25 +1,17 @@
-/* irqreturn.h */
 #ifndef _LINUX_IRQRETURN_H
 #define _LINUX_IRQRETURN_H
 
-/*
- * For 2.4.x compatibility, 2.4.x can use
- *
- *	typedef void irqreturn_t;
- *	#define IRQ_NONE
- *	#define IRQ_HANDLED
- *	#define IRQ_RETVAL(x)
- *
- * To mix old-style and new-style irq handler returns.
- *
- * IRQ_NONE means we didn't handle it.
- * IRQ_HANDLED means that we did have a valid interrupt and handled it.
- * IRQ_RETVAL(x) selects on the two depending on x being non-zero (for handled)
+/**
+ * enum irqreturn
+ * @IRQ_NONE		interrupt was not from this device
+ * @IRQ_HANDLED		interrupt was handled by this device
  */
-typedef int irqreturn_t;
+enum irqreturn {
+	IRQ_NONE,
+	IRQ_HANDLED,
+};
 
-#define IRQ_NONE	(0)
-#define IRQ_HANDLED	(1)
-#define IRQ_RETVAL(x)	((x) != 0)
+typedef enum irqreturn irqreturn_t;
+#define IRQ_RETVAL(x)	((x) != IRQ_NONE)
 
 #endif