From 52cf25d0ab7f78eeecc59ac652ed5090f69b619e Mon Sep 17 00:00:00 2001 From: Emese Revfy Date: Tue, 19 Jan 2010 02:58:23 +0100 Subject: Driver core: Constify struct sysfs_ops in struct kobj_type Constify struct sysfs_ops. This is part of the ops structure constification effort started by Arjan van de Ven et al. Benefits of this constification: * prevents modification of data that is shared (referenced) by many other structure instances at runtime * detects/prevents accidental (but not intentional) modification attempts on archs that enforce read-only kernel data at runtime * potentially better optimized code as the compiler can assume that the const data cannot be changed * the compiler/linker move const data into .rodata and therefore exclude them from false sharing Signed-off-by: Emese Revfy Acked-by: David Teigland Acked-by: Matt Domsch Acked-by: Maciej Sosnowski Acked-by: Hans J. Koch Acked-by: Pekka Enberg Acked-by: Jens Axboe Acked-by: Stephen Hemminger Signed-off-by: Greg Kroah-Hartman --- drivers/cpuidle/sysfs.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) (limited to 'drivers/cpuidle') diff --git a/drivers/cpuidle/sysfs.c b/drivers/cpuidle/sysfs.c index c9cefacabf37..8719b36e1a4d 100644 --- a/drivers/cpuidle/sysfs.c +++ b/drivers/cpuidle/sysfs.c @@ -195,7 +195,7 @@ static ssize_t cpuidle_store(struct kobject * kobj, struct attribute * attr, return ret; } -static struct sysfs_ops cpuidle_sysfs_ops = { +static const struct sysfs_ops cpuidle_sysfs_ops = { .show = cpuidle_show, .store = cpuidle_store, }; @@ -281,7 +281,7 @@ static ssize_t cpuidle_state_show(struct kobject * kobj, return ret; } -static struct sysfs_ops cpuidle_state_sysfs_ops = { +static const struct sysfs_ops cpuidle_state_sysfs_ops = { .show = cpuidle_state_show, }; -- cgit v1.2.3