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authorEmese Revfy <re.emese@gmail.com>2010-01-19 04:58:23 +0300
committerGreg Kroah-Hartman <gregkh@suse.de>2010-03-08 04:04:49 +0300
commit52cf25d0ab7f78eeecc59ac652ed5090f69b619e (patch)
tree031d1ffb3890bd69c0260c864c512e0be62ac05c /drivers/firmware
parent6c1733aca0b48db4d0e660d54976a1cca25b5eaf (diff)
downloadlinux-52cf25d0ab7f78eeecc59ac652ed5090f69b619e.tar.xz
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/firmware')
-rw-r--r--drivers/firmware/edd.c2
-rw-r--r--drivers/firmware/efivars.c2
-rw-r--r--drivers/firmware/iscsi_ibft.c2
-rw-r--r--drivers/firmware/memmap.c2
4 files changed, 4 insertions, 4 deletions
diff --git a/drivers/firmware/edd.c b/drivers/firmware/edd.c
index 9e4f59dc7f1e..110e24e50883 100644
--- a/drivers/firmware/edd.c
+++ b/drivers/firmware/edd.c
@@ -122,7 +122,7 @@ edd_attr_show(struct kobject * kobj, struct attribute *attr, char *buf)
return ret;
}
-static struct sysfs_ops edd_attr_ops = {
+static const struct sysfs_ops edd_attr_ops = {
.show = edd_attr_show,
};
diff --git a/drivers/firmware/efivars.c b/drivers/firmware/efivars.c
index f4f709d1370b..082f06ecd327 100644
--- a/drivers/firmware/efivars.c
+++ b/drivers/firmware/efivars.c
@@ -362,7 +362,7 @@ static ssize_t efivar_attr_store(struct kobject *kobj, struct attribute *attr,
return ret;
}
-static struct sysfs_ops efivar_attr_ops = {
+static const struct sysfs_ops efivar_attr_ops = {
.show = efivar_attr_show,
.store = efivar_attr_store,
};
diff --git a/drivers/firmware/iscsi_ibft.c b/drivers/firmware/iscsi_ibft.c
index a3600e3ed0fa..ed2801c378de 100644
--- a/drivers/firmware/iscsi_ibft.c
+++ b/drivers/firmware/iscsi_ibft.c
@@ -519,7 +519,7 @@ static ssize_t ibft_show_attribute(struct kobject *kobj,
return ret;
}
-static struct sysfs_ops ibft_attr_ops = {
+static const struct sysfs_ops ibft_attr_ops = {
.show = ibft_show_attribute,
};
diff --git a/drivers/firmware/memmap.c b/drivers/firmware/memmap.c
index 20f645743ead..d59f7cad2269 100644
--- a/drivers/firmware/memmap.c
+++ b/drivers/firmware/memmap.c
@@ -74,7 +74,7 @@ static struct attribute *def_attrs[] = {
NULL
};
-static struct sysfs_ops memmap_attr_ops = {
+static const struct sysfs_ops memmap_attr_ops = {
.show = memmap_attr_show,
};