diff options
author | Emese Revfy <re.emese@gmail.com> | 2010-01-18 20:58:23 -0500 |
---|---|---|
committer | Greg Kroah-Hartman <gregkh@suse.de> | 2010-03-07 20:04:49 -0500 |
commit | 52cf25d0ab7f78eeecc59ac652ed5090f69b619e (patch) | |
tree | 031d1ffb3890bd69c0260c864c512e0be62ac05c /net/bridge/br_private.h | |
parent | 6c1733aca0b48db4d0e660d54976a1cca25b5eaf (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 <re.emese@gmail.com>
Acked-by: David Teigland <teigland@redhat.com>
Acked-by: Matt Domsch <Matt_Domsch@dell.com>
Acked-by: Maciej Sosnowski <maciej.sosnowski@intel.com>
Acked-by: Hans J. Koch <hjk@linutronix.de>
Acked-by: Pekka Enberg <penberg@cs.helsinki.fi>
Acked-by: Jens Axboe <jens.axboe@oracle.com>
Acked-by: Stephen Hemminger <shemminger@vyatta.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Diffstat (limited to 'net/bridge/br_private.h')
-rw-r--r-- | net/bridge/br_private.h | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/net/bridge/br_private.h b/net/bridge/br_private.h index 1cf2cef78584..fef0384e3c0b 100644 --- a/net/bridge/br_private.h +++ b/net/bridge/br_private.h | |||
@@ -423,7 +423,7 @@ extern void br_ifinfo_notify(int event, struct net_bridge_port *port); | |||
423 | 423 | ||
424 | #ifdef CONFIG_SYSFS | 424 | #ifdef CONFIG_SYSFS |
425 | /* br_sysfs_if.c */ | 425 | /* br_sysfs_if.c */ |
426 | extern struct sysfs_ops brport_sysfs_ops; | 426 | extern const struct sysfs_ops brport_sysfs_ops; |
427 | extern int br_sysfs_addif(struct net_bridge_port *p); | 427 | extern int br_sysfs_addif(struct net_bridge_port *p); |
428 | 428 | ||
429 | /* br_sysfs_br.c */ | 429 | /* br_sysfs_br.c */ |