diff options
| author | Emese Revfy <re.emese@gmail.com> | 2009-12-31 14:52:51 +0100 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@suse.de> | 2010-03-07 17:04:49 -0800 |
| commit | 9cd43611ccfb46632bfa7d19f688924ea93f1613 (patch) | |
| tree | e11ecee403235ba9d8855892fa7ad55d9b63e221 /drivers/base | |
| parent | 985fc176a6c03836454629be2f2a611ccc7c7002 (diff) | |
kobject: Constify struct kset_uevent_ops
Constify struct kset_uevent_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 <re.emese@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Diffstat (limited to 'drivers/base')
| -rw-r--r-- | drivers/base/bus.c | 2 | ||||
| -rw-r--r-- | drivers/base/core.c | 2 | ||||
| -rw-r--r-- | drivers/base/memory.c | 2 |
3 files changed, 3 insertions, 3 deletions
diff --git a/drivers/base/bus.c b/drivers/base/bus.c index c0c5a43d9fb..2afe599eb35 100644 --- a/drivers/base/bus.c +++ b/drivers/base/bus.c @@ -154,7 +154,7 @@ static int bus_uevent_filter(struct kset *kset, struct kobject *kobj) return 0; } -static struct kset_uevent_ops bus_uevent_ops = { +static const struct kset_uevent_ops bus_uevent_ops = { .filter = bus_uevent_filter, }; diff --git a/drivers/base/core.c b/drivers/base/core.c index f6c73a9e3d9..58ec1069f4b 100644 --- a/drivers/base/core.c +++ b/drivers/base/core.c @@ -252,7 +252,7 @@ static int dev_uevent(struct kset *kset, struct kobject *kobj, return retval; } -static struct kset_uevent_ops device_uevent_ops = { +static const struct kset_uevent_ops device_uevent_ops = { .filter = dev_uevent_filter, .name = dev_uevent_name, .uevent = dev_uevent, diff --git a/drivers/base/memory.c b/drivers/base/memory.c index 495f15e92d4..2f869151119 100644 --- a/drivers/base/memory.c +++ b/drivers/base/memory.c @@ -44,7 +44,7 @@ static int memory_uevent(struct kset *kset, struct kobject *obj, struct kobj_uev return retval; } -static struct kset_uevent_ops memory_uevent_ops = { +static const struct kset_uevent_ops memory_uevent_ops = { .name = memory_uevent_name, .uevent = memory_uevent, }; |