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authorEmese Revfy <re.emese@gmail.com>2010-01-18 20:58:23 -0500
committerGreg Kroah-Hartman <gregkh@suse.de>2010-03-07 20:04:49 -0500
commit52cf25d0ab7f78eeecc59ac652ed5090f69b619e (patch)
tree031d1ffb3890bd69c0260c864c512e0be62ac05c /drivers/pci/slot.c
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 <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 'drivers/pci/slot.c')
-rw-r--r--drivers/pci/slot.c2
1 files changed, 1 insertions, 1 deletions
diff --git a/drivers/pci/slot.c b/drivers/pci/slot.c
index 49c9e6c9779a..f75a44d37fbe 100644
--- a/drivers/pci/slot.c
+++ b/drivers/pci/slot.c
@@ -29,7 +29,7 @@ static ssize_t pci_slot_attr_store(struct kobject *kobj,
29 return attribute->store ? attribute->store(slot, buf, len) : -EIO; 29 return attribute->store ? attribute->store(slot, buf, len) : -EIO;
30} 30}
31 31
32static struct sysfs_ops pci_slot_sysfs_ops = { 32static const struct sysfs_ops pci_slot_sysfs_ops = {
33 .show = pci_slot_attr_show, 33 .show = pci_slot_attr_show,
34 .store = pci_slot_attr_store, 34 .store = pci_slot_attr_store,
35}; 35};