path: root/samples
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authorEmese Revfy <>2010-01-19 02:58:23 +0100
committerGreg Kroah-Hartman <>2010-03-07 17:04:49 -0800
commit52cf25d0ab7f78eeecc59ac652ed5090f69b619e (patch)
tree031d1ffb3890bd69c0260c864c512e0be62ac05c /samples
parent6c1733aca0b48db4d0e660d54976a1cca25b5eaf (diff)
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 <>
Diffstat (limited to 'samples')
1 files changed, 1 insertions, 1 deletions
diff --git a/samples/kobject/kset-example.c b/samples/kobject/kset-example.c
index 7c6088140528..3b126d1f8599 100644
--- a/samples/kobject/kset-example.c
+++ b/samples/kobject/kset-example.c
@@ -87,7 +87,7 @@ static ssize_t foo_attr_store(struct kobject *kobj,
/* Our custom sysfs_ops that we will associate with our ktype later on */
-static struct sysfs_ops foo_sysfs_ops = {
+static const struct sysfs_ops foo_sysfs_ops = {
.show = foo_attr_show,
.store = foo_attr_store,