linux-kernel - [PATCH 5/5] RFC genirq: enforce dev_id to be struct timespec * with IRQF

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Message-Id: <1300708760-27910-5-git-send-email-torbenh@gmx.de>
Date:	Mon, 21 Mar 2011 12:59:20 +0100
From:	Torben Hohn <torbenh@....de>
To:	linux-kernel@...r.kernel.org
Cc:	Thomas Gleixner <tglx@...utronix.de>, linuxpps@...enneenne.com,
	Torben Hohn <torbenh@....de>
Subject: [PATCH 5/5] RFC genirq: enforce dev_id to be struct timespec * with IRQF_TIMESTAMP

we can enforce the dev_id to be a struct timespec * in
irq_turn_on_timestamping() and irq_turn_off_timestamping()

Signed-off-by: Torben Hohn <torbenh@....de>
---
 include/linux/interrupt.h |    4 ++--
 kernel/irq/manage.c       |    8 ++++----
 2 files changed, 6 insertions(+), 6 deletions(-)

diff --git a/include/linux/interrupt.h b/include/linux/interrupt.h
index cc9ed9c..759fead 100644
--- a/include/linux/interrupt.h
+++ b/include/linux/interrupt.h
@@ -175,8 +175,8 @@ request_any_context_irq(unsigned int irq, irq_handler_t handler,
 static inline void exit_irq_thread(void) { }
 #endif
 
-extern void irq_turn_on_timestamping(unsigned int irq, void *dev_id);
-extern void irq_turn_off_timestamping(unsigned int irq, void *dev_id);
+extern void irq_turn_on_timestamping(unsigned int irq, struct timespec *dev_id);
+extern void irq_turn_off_timestamping(unsigned int irq, struct timespec *dev_id);
 
 extern void free_irq(unsigned int, void *);
 
diff --git a/kernel/irq/manage.c b/kernel/irq/manage.c
index 66e9501..3ac9acc 100644
--- a/kernel/irq/manage.c
+++ b/kernel/irq/manage.c
@@ -656,7 +656,7 @@ void exit_irq_thread(void)
  *
  *	Turning on timestamping nests.
  */
-void irq_turn_on_timestamping(unsigned int irq, void *dev_id)
+void irq_turn_on_timestamping(unsigned int irq, struct timespec *dev_id)
 {
 	struct irq_desc *desc = irq_to_desc(irq);
 	unsigned long flags;
@@ -667,7 +667,7 @@ void irq_turn_on_timestamping(unsigned int irq, void *dev_id)
 
 	act = desc->action;
 	while (act) {
-		if (act->dev_id == dev_id) {
+		if (act->dev_id == (void *)dev_id) {
 			act->flags |= IRQF_TIMESTAMP;
 			break;
 		}
@@ -689,7 +689,7 @@ EXPORT_SYMBOL_GPL(irq_turn_on_timestamping);
  *
  *	Turning on timestamping nests.
  */
-void irq_turn_off_timestamping(unsigned int irq, void *dev_id)
+void irq_turn_off_timestamping(unsigned int irq, struct timespec *dev_id)
 {
 	struct irq_desc *desc = irq_to_desc(irq);
 	unsigned long flags;
@@ -700,7 +700,7 @@ void irq_turn_off_timestamping(unsigned int irq, void *dev_id)
 
 	act = desc->action;
 	while (act) {
-		if (act->dev_id == dev_id) {
+		if (act->dev_id == (void *)dev_id) {
 			act->flags &= ~(IRQF_TIMESTAMP);
 		}
 		irqf_accu |= act->flags;
-- 
1.7.2.3

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