From f701b3999890b867f87733c146d4cdf9319ead05 Mon Sep 17 00:00:00 2001
From: Nicolas Palix <npalix@diku.dk>
Date: Mon, 7 Dec 2009 10:38:55 +0100
Subject: [PATCH] sh: Replace an explicit computation by the use of the
container_of macro
The macro container_of from kernel.h performs the same
pointer arithmetic operation.
The semantic patch that makes this change is as follows:
(http://coccinelle.lip6.fr/)
// <smpl>
@@
type T;
expression mptr;
expression member;
@@
- (void *)((char *)mptr - offsetof(T, member))
+ container_of(mptr, T, member)
// </smpl>
Signed-off-by: Nicolas Palix <npalix@diku.dk>
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
---
arch/sh/kernel/cpu/irq/ipr.c | 7 ++++---
1 file changed, 4 insertions(+), 3 deletions(-)
diff --git a/arch/sh/kernel/cpu/irq/ipr.c b/arch/sh/kernel/cpu/irq/ipr.c
index c1508a90fc6af..9282d965a1b66 100644
--- a/arch/sh/kernel/cpu/irq/ipr.c
+++ b/arch/sh/kernel/cpu/irq/ipr.c
@@ -17,16 +17,17 @@
* for more details.
*/
#include <linux/init.h>
+#include <linux/interrupt.h>
+#include <linux/io.h>
#include <linux/irq.h>
+#include <linux/kernel.h>
#include <linux/module.h>
-#include <linux/io.h>
-#include <linux/interrupt.h>
#include <linux/topology.h>
static inline struct ipr_desc *get_ipr_desc(unsigned int irq)
{
struct irq_chip *chip = get_irq_chip(irq);
- return (void *)((char *)chip - offsetof(struct ipr_desc, chip));
+ return container_of(chip, struct ipr_desc, chip);
}
static void disable_ipr_irq(unsigned int irq)
--
2.30.2