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gerrit-public.fairphone.software / kernel / msm / 52cf25d0ab7f78eeecc59ac652ed5090f69b619e^! / .
commit52cf25d0ab7f78eeecc59ac652ed5090f69b619e[log] [tgz]
authorEmese Revfy <re.emese@gmail.com>Tue Jan 19 02:58:23 2010 +0100
committerGreg Kroah-Hartman <gregkh@suse.de>Sun Mar 07 17:04:49 2010 -0800
tree031d1ffb3890bd69c0260c864c512e0be62ac05c
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>


diff --git a/Documentation/kobject.txt b/Documentation/kobject.txt
index c79ab99..bdb1381 100644
--- a/Documentation/kobject.txt
+++ b/Documentation/kobject.txt

@@ -266,7 +266,7 @@
 
     struct kobj_type {
 	    void (*release)(struct kobject *);
-	    struct sysfs_ops	*sysfs_ops;
+	    const struct sysfs_ops *sysfs_ops;
 	    struct attribute	**default_attrs;
     };
 

diff --git a/arch/ia64/kernel/topology.c b/arch/ia64/kernel/topology.c
index 8f06035..b3a5818 100644
--- a/arch/ia64/kernel/topology.c
+++ b/arch/ia64/kernel/topology.c

@@ -282,7 +282,7 @@
 	return ret;
 }
 
-static struct sysfs_ops cache_sysfs_ops = {
+static const struct sysfs_ops cache_sysfs_ops = {
 	.show   = cache_show
 };
 

diff --git a/arch/powerpc/kernel/cacheinfo.c b/arch/powerpc/kernel/cacheinfo.c
index bb37b1d..01fe9ce 100644
--- a/arch/powerpc/kernel/cacheinfo.c
+++ b/arch/powerpc/kernel/cacheinfo.c

@@ -642,7 +642,7 @@
 	&cache_assoc_attr,
 };
 
-static struct sysfs_ops cache_index_ops = {
+static const struct sysfs_ops cache_index_ops = {
 	.show = cache_index_show,
 };
 

diff --git a/arch/sh/kernel/cpu/sh4/sq.c b/arch/sh/kernel/cpu/sh4/sq.c
index fc065f9..14726ee 100644
--- a/arch/sh/kernel/cpu/sh4/sq.c
+++ b/arch/sh/kernel/cpu/sh4/sq.c

@@ -326,7 +326,7 @@
 	NULL,
 };
 
-static struct sysfs_ops sq_sysfs_ops = {
+static const struct sysfs_ops sq_sysfs_ops = {
 	.show	= sq_sysfs_show,
 	.store	= sq_sysfs_store,
 };

diff --git a/arch/x86/kernel/cpu/intel_cacheinfo.c b/arch/x86/kernel/cpu/intel_cacheinfo.c
index eddb1bd..b3eeb66 100644
--- a/arch/x86/kernel/cpu/intel_cacheinfo.c
+++ b/arch/x86/kernel/cpu/intel_cacheinfo.c

@@ -903,7 +903,7 @@
 	return ret;
 }
 
-static struct sysfs_ops sysfs_ops = {
+static const struct sysfs_ops sysfs_ops = {
 	.show   = show,
 	.store  = store,
 };

diff --git a/arch/x86/kernel/cpu/mcheck/mce_amd.c b/arch/x86/kernel/cpu/mcheck/mce_amd.c
index 83a3d1f..cda932c 100644
--- a/arch/x86/kernel/cpu/mcheck/mce_amd.c
+++ b/arch/x86/kernel/cpu/mcheck/mce_amd.c

@@ -388,7 +388,7 @@
 	return ret;
 }
 
-static struct sysfs_ops threshold_ops = {
+static const struct sysfs_ops threshold_ops = {
 	.show			= show,
 	.store			= store,
 };

diff --git a/block/blk-integrity.c b/block/blk-integrity.c
index 15c6308..96e83c2 100644
--- a/block/blk-integrity.c
+++ b/block/blk-integrity.c

@@ -278,7 +278,7 @@
 	NULL,
 };
 
-static struct sysfs_ops integrity_ops = {
+static const struct sysfs_ops integrity_ops = {
 	.show	= &integrity_attr_show,
 	.store	= &integrity_attr_store,
 };

diff --git a/block/blk-sysfs.c b/block/blk-sysfs.c
index e854424..2ae2cb3 100644
--- a/block/blk-sysfs.c
+++ b/block/blk-sysfs.c

@@ -450,7 +450,7 @@
 	kmem_cache_free(blk_requestq_cachep, q);
 }
 
-static struct sysfs_ops queue_sysfs_ops = {
+static const struct sysfs_ops queue_sysfs_ops = {
 	.show	= queue_attr_show,
 	.store	= queue_attr_store,
 };

diff --git a/block/elevator.c b/block/elevator.c
index ee3a883..df75676 100644
--- a/block/elevator.c
+++ b/block/elevator.c

@@ -892,7 +892,7 @@
 	return error;
 }
 
-static struct sysfs_ops elv_sysfs_ops = {
+static const struct sysfs_ops elv_sysfs_ops = {
 	.show	= elv_attr_show,
 	.store	= elv_attr_store,
 };

diff --git a/drivers/base/bus.c b/drivers/base/bus.c
index 2afe599..cca1aa1 100644
--- a/drivers/base/bus.c
+++ b/drivers/base/bus.c

@@ -70,7 +70,7 @@
 	return ret;
 }
 
-static struct sysfs_ops driver_sysfs_ops = {
+static const struct sysfs_ops driver_sysfs_ops = {
 	.show	= drv_attr_show,
 	.store	= drv_attr_store,
 };
@@ -115,7 +115,7 @@
 	return ret;
 }
 
-static struct sysfs_ops bus_sysfs_ops = {
+static const struct sysfs_ops bus_sysfs_ops = {
 	.show	= bus_attr_show,
 	.store	= bus_attr_store,
 };

diff --git a/drivers/base/class.c b/drivers/base/class.c
index 2e297cc..0147f47 100644
--- a/drivers/base/class.c
+++ b/drivers/base/class.c

@@ -63,7 +63,7 @@
 	kfree(cp);
 }
 
-static struct sysfs_ops class_sysfs_ops = {
+static const struct sysfs_ops class_sysfs_ops = {
 	.show	= class_attr_show,
 	.store	= class_attr_store,
 };

diff --git a/drivers/base/core.c b/drivers/base/core.c
index 58ec106..b0d6646 100644
--- a/drivers/base/core.c
+++ b/drivers/base/core.c

@@ -100,7 +100,7 @@
 	return ret;
 }
 
-static struct sysfs_ops dev_sysfs_ops = {
+static const struct sysfs_ops dev_sysfs_ops = {
 	.show	= dev_attr_show,
 	.store	= dev_attr_store,
 };

diff --git a/drivers/base/sys.c b/drivers/base/sys.c
index 747c99e..8980fee 100644
--- a/drivers/base/sys.c
+++ b/drivers/base/sys.c

@@ -54,7 +54,7 @@
 	return -EIO;
 }
 
-static struct sysfs_ops sysfs_ops = {
+static const struct sysfs_ops sysfs_ops = {
 	.show	= sysdev_show,
 	.store	= sysdev_store,
 };
@@ -104,7 +104,7 @@
 	return -EIO;
 }
 
-static struct sysfs_ops sysfs_class_ops = {
+static const struct sysfs_ops sysfs_class_ops = {
 	.show	= sysdev_class_show,
 	.store	= sysdev_class_store,
 };

diff --git a/drivers/block/pktcdvd.c b/drivers/block/pktcdvd.c
index 73d815d..39c8514 100644
--- a/drivers/block/pktcdvd.c
+++ b/drivers/block/pktcdvd.c

@@ -284,7 +284,7 @@
 	return len;
 }
 
-static struct sysfs_ops kobj_pkt_ops = {
+static const struct sysfs_ops kobj_pkt_ops = {
 	.show = kobj_pkt_show,
 	.store = kobj_pkt_store
 };

diff --git a/drivers/cpufreq/cpufreq.c b/drivers/cpufreq/cpufreq.c
index 67bc2ec..2d5d575 100644
--- a/drivers/cpufreq/cpufreq.c
+++ b/drivers/cpufreq/cpufreq.c

@@ -766,7 +766,7 @@
 	complete(&policy->kobj_unregister);
 }
 
-static struct sysfs_ops sysfs_ops = {
+static const struct sysfs_ops sysfs_ops = {
 	.show	= show,
 	.store	= store,
 };

diff --git a/drivers/cpuidle/sysfs.c b/drivers/cpuidle/sysfs.c
index c9cefac..8719b36 100644
--- a/drivers/cpuidle/sysfs.c
+++ b/drivers/cpuidle/sysfs.c

@@ -195,7 +195,7 @@
 	return ret;
 }
 
-static struct sysfs_ops cpuidle_sysfs_ops = {
+static const struct sysfs_ops cpuidle_sysfs_ops = {
 	.show = cpuidle_show,
 	.store = cpuidle_store,
 };
@@ -281,7 +281,7 @@
 	return ret;
 }
 
-static struct sysfs_ops cpuidle_state_sysfs_ops = {
+static const struct sysfs_ops cpuidle_state_sysfs_ops = {
 	.show = cpuidle_state_show,
 };
 

diff --git a/drivers/dma/ioat/dma.c b/drivers/dma/ioat/dma.c
index af14c9a..0099340 100644
--- a/drivers/dma/ioat/dma.c
+++ b/drivers/dma/ioat/dma.c

@@ -1138,7 +1138,7 @@
 	return entry->show(&chan->common, page);
 }
 
-struct sysfs_ops ioat_sysfs_ops = {
+const struct sysfs_ops ioat_sysfs_ops = {
 	.show	= ioat_attr_show,
 };
 

diff --git a/drivers/dma/ioat/dma.h b/drivers/dma/ioat/dma.h
index 4f747a2..86b97ac 100644
--- a/drivers/dma/ioat/dma.h
+++ b/drivers/dma/ioat/dma.h

@@ -346,7 +346,7 @@
 			   unsigned long *phys_complete);
 void ioat_kobject_add(struct ioatdma_device *device, struct kobj_type *type);
 void ioat_kobject_del(struct ioatdma_device *device);
-extern struct sysfs_ops ioat_sysfs_ops;
+extern const struct sysfs_ops ioat_sysfs_ops;
 extern struct ioat_sysfs_entry ioat_version_attr;
 extern struct ioat_sysfs_entry ioat_cap_attr;
 #endif /* IOATDMA_H */

diff --git a/drivers/edac/edac_device_sysfs.c b/drivers/edac/edac_device_sysfs.c
index 5376457..5fdedbc 100644
--- a/drivers/edac/edac_device_sysfs.c
+++ b/drivers/edac/edac_device_sysfs.c

@@ -137,7 +137,7 @@
 }
 
 /* edac_dev file operations for an 'ctl_info' */
-static struct sysfs_ops device_ctl_info_ops = {
+static const struct sysfs_ops device_ctl_info_ops = {
 	.show = edac_dev_ctl_info_show,
 	.store = edac_dev_ctl_info_store
 };
@@ -373,7 +373,7 @@
 }
 
 /* edac_dev file operations for an 'instance' */
-static struct sysfs_ops device_instance_ops = {
+static const struct sysfs_ops device_instance_ops = {
 	.show = edac_dev_instance_show,
 	.store = edac_dev_instance_store
 };
@@ -476,7 +476,7 @@
 }
 
 /* edac_dev file operations for a 'block' */
-static struct sysfs_ops device_block_ops = {
+static const struct sysfs_ops device_block_ops = {
 	.show = edac_dev_block_show,
 	.store = edac_dev_block_store
 };

diff --git a/drivers/edac/edac_mc_sysfs.c b/drivers/edac/edac_mc_sysfs.c
index e1d4ce0..88840e9 100644
--- a/drivers/edac/edac_mc_sysfs.c
+++ b/drivers/edac/edac_mc_sysfs.c

@@ -245,7 +245,7 @@
 	return -EIO;
 }
 
-static struct sysfs_ops csrowfs_ops = {
+static const struct sysfs_ops csrowfs_ops = {
 	.show = csrowdev_show,
 	.store = csrowdev_store
 };
@@ -575,7 +575,7 @@
 }
 
 /* Intermediate show/store table */
-static struct sysfs_ops mci_ops = {
+static const struct sysfs_ops mci_ops = {
 	.show = mcidev_show,
 	.store = mcidev_store
 };

diff --git a/drivers/edac/edac_pci_sysfs.c b/drivers/edac/edac_pci_sysfs.c
index fb60a87..bef94e3 100644
--- a/drivers/edac/edac_pci_sysfs.c
+++ b/drivers/edac/edac_pci_sysfs.c

@@ -121,7 +121,7 @@
 }
 
 /* fs_ops table */
-static struct sysfs_ops pci_instance_ops = {
+static const struct sysfs_ops pci_instance_ops = {
 	.show = edac_pci_instance_show,
 	.store = edac_pci_instance_store
 };
@@ -261,7 +261,7 @@
 	return -EIO;
 }
 
-static struct sysfs_ops edac_pci_sysfs_ops = {
+static const struct sysfs_ops edac_pci_sysfs_ops = {
 	.show = edac_pci_dev_show,
 	.store = edac_pci_dev_store
 };

diff --git a/drivers/firmware/edd.c b/drivers/firmware/edd.c
index 9e4f59d..110e24e 100644
--- a/drivers/firmware/edd.c
+++ b/drivers/firmware/edd.c

@@ -122,7 +122,7 @@
 	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 f4f709d..082f06e 100644
--- a/drivers/firmware/efivars.c
+++ b/drivers/firmware/efivars.c

@@ -362,7 +362,7 @@
 	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 a3600e3..ed2801c 100644
--- a/drivers/firmware/iscsi_ibft.c
+++ b/drivers/firmware/iscsi_ibft.c

@@ -519,7 +519,7 @@
 	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 20f6457..d59f7ca 100644
--- a/drivers/firmware/memmap.c
+++ b/drivers/firmware/memmap.c

@@ -74,7 +74,7 @@
 	NULL
 };
 
-static struct sysfs_ops memmap_attr_ops = {
+static const struct sysfs_ops memmap_attr_ops = {
 	.show = memmap_attr_show,
 };
 

diff --git a/drivers/gpu/drm/ttm/ttm_bo.c b/drivers/gpu/drm/ttm/ttm_bo.c
index c7320ce..89c38c4 100644
--- a/drivers/gpu/drm/ttm/ttm_bo.c
+++ b/drivers/gpu/drm/ttm/ttm_bo.c

@@ -128,7 +128,7 @@
 	NULL
 };
 
-static struct sysfs_ops ttm_bo_global_ops = {
+static const struct sysfs_ops ttm_bo_global_ops = {
 	.show = &ttm_bo_global_show
 };
 

diff --git a/drivers/gpu/drm/ttm/ttm_memory.c b/drivers/gpu/drm/ttm/ttm_memory.c
index f5245c0..eb143e0 100644
--- a/drivers/gpu/drm/ttm/ttm_memory.c
+++ b/drivers/gpu/drm/ttm/ttm_memory.c

@@ -152,7 +152,7 @@
 	NULL
 };
 
-static struct sysfs_ops ttm_mem_zone_ops = {
+static const struct sysfs_ops ttm_mem_zone_ops = {
 	.show = &ttm_mem_zone_show,
 	.store = &ttm_mem_zone_store
 };

diff --git a/drivers/infiniband/core/cm.c b/drivers/infiniband/core/cm.c
index 5130fc5..764787e 100644
--- a/drivers/infiniband/core/cm.c
+++ b/drivers/infiniband/core/cm.c

@@ -3597,7 +3597,7 @@
 		       atomic_long_read(&group->counter[cm_attr->index]));
 }
 
-static struct sysfs_ops cm_counter_ops = {
+static const struct sysfs_ops cm_counter_ops = {
 	.show = cm_show_counter
 };
 

diff --git a/drivers/infiniband/core/sysfs.c b/drivers/infiniband/core/sysfs.c
index 158a214..1558bb7 100644
--- a/drivers/infiniband/core/sysfs.c
+++ b/drivers/infiniband/core/sysfs.c

@@ -79,7 +79,7 @@
 	return port_attr->show(p, port_attr, buf);
 }
 
-static struct sysfs_ops port_sysfs_ops = {
+static const struct sysfs_ops port_sysfs_ops = {
 	.show = port_attr_show
 };
 

diff --git a/drivers/md/dm-sysfs.c b/drivers/md/dm-sysfs.c
index f91b409..84d2b91 100644
--- a/drivers/md/dm-sysfs.c
+++ b/drivers/md/dm-sysfs.c

@@ -75,7 +75,7 @@
 	NULL,
 };
 
-static struct sysfs_ops dm_sysfs_ops = {
+static const struct sysfs_ops dm_sysfs_ops = {
 	.show	= dm_attr_show,
 };
 

diff --git a/drivers/md/md.c b/drivers/md/md.c
index a20a71e..fdc1890 100644
--- a/drivers/md/md.c
+++ b/drivers/md/md.c

@@ -2642,7 +2642,7 @@
 	mdk_rdev_t *rdev = container_of(ko, mdk_rdev_t, kobj);
 	kfree(rdev);
 }
-static struct sysfs_ops rdev_sysfs_ops = {
+static const struct sysfs_ops rdev_sysfs_ops = {
 	.show		= rdev_attr_show,
 	.store		= rdev_attr_store,
 };
@@ -4059,7 +4059,7 @@
 	kfree(mddev);
 }
 
-static struct sysfs_ops md_sysfs_ops = {
+static const struct sysfs_ops md_sysfs_ops = {
 	.show	= md_attr_show,
 	.store	= md_attr_store,
 };

diff --git a/drivers/net/ibmveth.c b/drivers/net/ibmveth.c
index f2b93796..0bc777b 100644
--- a/drivers/net/ibmveth.c
+++ b/drivers/net/ibmveth.c

@@ -1577,7 +1577,7 @@
 	NULL,
 };
 
-static struct sysfs_ops veth_pool_ops = {
+static const struct sysfs_ops veth_pool_ops = {
 	.show   = veth_pool_show,
 	.store  = veth_pool_store,
 };

diff --git a/drivers/net/iseries_veth.c b/drivers/net/iseries_veth.c
index 966de5d..e6e972d 100644
--- a/drivers/net/iseries_veth.c
+++ b/drivers/net/iseries_veth.c

@@ -384,7 +384,7 @@
 	NULL
 };
 
-static struct sysfs_ops veth_cnx_sysfs_ops = {
+static const struct sysfs_ops veth_cnx_sysfs_ops = {
 		.show = veth_cnx_attribute_show
 };
 
@@ -441,7 +441,7 @@
 	NULL
 };
 
-static struct sysfs_ops veth_port_sysfs_ops = {
+static const struct sysfs_ops veth_port_sysfs_ops = {
 	.show = veth_port_attribute_show
 };
 

diff --git a/drivers/parisc/pdc_stable.c b/drivers/parisc/pdc_stable.c
index 0bc5d47..1062b8f 100644
--- a/drivers/parisc/pdc_stable.c
+++ b/drivers/parisc/pdc_stable.c

@@ -481,7 +481,7 @@
 	return ret;
 }
 
-static struct sysfs_ops pdcspath_attr_ops = {
+static const struct sysfs_ops pdcspath_attr_ops = {
 	.show = pdcspath_attr_show,
 	.store = pdcspath_attr_store,
 };

diff --git a/drivers/pci/hotplug/fakephp.c b/drivers/pci/hotplug/fakephp.c
index 6151389..0a894ef 100644
--- a/drivers/pci/hotplug/fakephp.c
+++ b/drivers/pci/hotplug/fakephp.c

@@ -73,7 +73,7 @@
 }
 
 static struct kobj_type legacy_ktype = {
-	.sysfs_ops = &(struct sysfs_ops){
+	.sysfs_ops = &(const struct sysfs_ops){
 		.store = legacy_store, .show = legacy_show
 	},
 	.release = &legacy_release,

diff --git a/drivers/pci/slot.c b/drivers/pci/slot.c
index 49c9e6c..f75a44d 100644
--- a/drivers/pci/slot.c
+++ b/drivers/pci/slot.c

@@ -29,7 +29,7 @@
 	return attribute->store ? attribute->store(slot, buf, len) : -EIO;
 }
 
-static struct sysfs_ops pci_slot_sysfs_ops = {
+static const struct sysfs_ops pci_slot_sysfs_ops = {
 	.show = pci_slot_attr_show,
 	.store = pci_slot_attr_store,
 };

diff --git a/drivers/uio/uio.c b/drivers/uio/uio.c
index e941367..4de382a 100644
--- a/drivers/uio/uio.c
+++ b/drivers/uio/uio.c

@@ -129,7 +129,7 @@
 	return entry->show(mem, buf);
 }
 
-static struct sysfs_ops map_sysfs_ops = {
+static const struct sysfs_ops map_sysfs_ops = {
 	.show = map_type_show,
 };
 
@@ -217,7 +217,7 @@
 	return entry->show(port, buf);
 }
 
-static struct sysfs_ops portio_sysfs_ops = {
+static const struct sysfs_ops portio_sysfs_ops = {
 	.show = portio_type_show,
 };
 

diff --git a/drivers/uwb/wlp/sysfs.c b/drivers/uwb/wlp/sysfs.c
index 0370399..6627c94 100644
--- a/drivers/uwb/wlp/sysfs.c
+++ b/drivers/uwb/wlp/sysfs.c

@@ -615,8 +615,7 @@
 	return ret;
 }
 
-static
-struct sysfs_ops wss_sysfs_ops = {
+static const struct sysfs_ops wss_sysfs_ops = {
 	.show	= wlp_wss_attr_show,
 	.store	= wlp_wss_attr_store,
 };

diff --git a/drivers/video/omap2/dss/manager.c b/drivers/video/omap2/dss/manager.c
index 913142d..9acef00 100644
--- a/drivers/video/omap2/dss/manager.c
+++ b/drivers/video/omap2/dss/manager.c

@@ -341,7 +341,7 @@
 	return manager_attr->store(manager, buf, size);
 }
 
-static struct sysfs_ops manager_sysfs_ops = {
+static const struct sysfs_ops manager_sysfs_ops = {
 	.show = manager_attr_show,
 	.store = manager_attr_store,
 };

diff --git a/drivers/video/omap2/dss/overlay.c b/drivers/video/omap2/dss/overlay.c
index 0c5bea2..aed3f31 100644
--- a/drivers/video/omap2/dss/overlay.c
+++ b/drivers/video/omap2/dss/overlay.c

@@ -320,7 +320,7 @@
 	return overlay_attr->store(overlay, buf, size);
 }
 
-static struct sysfs_ops overlay_sysfs_ops = {
+static const struct sysfs_ops overlay_sysfs_ops = {
 	.show = overlay_attr_show,
 	.store = overlay_attr_store,
 };

diff --git a/drivers/xen/sys-hypervisor.c b/drivers/xen/sys-hypervisor.c
index ae5cb05..bb71ab2 100644
--- a/drivers/xen/sys-hypervisor.c
+++ b/drivers/xen/sys-hypervisor.c

@@ -426,7 +426,7 @@
 	return 0;
 }
 
-static struct sysfs_ops hyp_sysfs_ops = {
+static const struct sysfs_ops hyp_sysfs_ops = {
 	.show = hyp_sysfs_show,
 	.store = hyp_sysfs_store,
 };

diff --git a/fs/btrfs/sysfs.c b/fs/btrfs/sysfs.c
index a240b6f..4ce16ef 100644
--- a/fs/btrfs/sysfs.c
+++ b/fs/btrfs/sysfs.c

@@ -164,12 +164,12 @@
 	complete(&root->kobj_unregister);
 }
 
-static struct sysfs_ops btrfs_super_attr_ops = {
+static const struct sysfs_ops btrfs_super_attr_ops = {
 	.show	= btrfs_super_attr_show,
 	.store	= btrfs_super_attr_store,
 };
 
-static struct sysfs_ops btrfs_root_attr_ops = {
+static const struct sysfs_ops btrfs_root_attr_ops = {
 	.show	= btrfs_root_attr_show,
 	.store	= btrfs_root_attr_store,
 };

diff --git a/fs/dlm/lockspace.c b/fs/dlm/lockspace.c
index 26a8bd4..f994a7d 100644
--- a/fs/dlm/lockspace.c
+++ b/fs/dlm/lockspace.c

@@ -148,7 +148,7 @@
 	kfree(ls);
 }
 
-static struct sysfs_ops dlm_attr_ops = {
+static const struct sysfs_ops dlm_attr_ops = {
 	.show  = dlm_attr_show,
 	.store = dlm_attr_store,
 };

diff --git a/fs/ext4/super.c b/fs/ext4/super.c
index 2b83b96..ce84a6e 100644
--- a/fs/ext4/super.c
+++ b/fs/ext4/super.c

@@ -2358,7 +2358,7 @@
 }
 
 
-static struct sysfs_ops ext4_attr_ops = {
+static const struct sysfs_ops ext4_attr_ops = {
 	.show	= ext4_attr_show,
 	.store	= ext4_attr_store,
 };

diff --git a/fs/gfs2/sys.c b/fs/gfs2/sys.c
index 5435030..419042f 100644
--- a/fs/gfs2/sys.c
+++ b/fs/gfs2/sys.c

@@ -49,7 +49,7 @@
 	return a->store ? a->store(sdp, buf, len) : len;
 }
 
-static struct sysfs_ops gfs2_attr_ops = {
+static const struct sysfs_ops gfs2_attr_ops = {
 	.show  = gfs2_attr_show,
 	.store = gfs2_attr_store,
 };

diff --git a/fs/ocfs2/cluster/masklog.c b/fs/ocfs2/cluster/masklog.c
index b39da87..3bb928a 100644
--- a/fs/ocfs2/cluster/masklog.c
+++ b/fs/ocfs2/cluster/masklog.c

@@ -136,7 +136,7 @@
 	return mlog_mask_store(mlog_attr->mask, buf, count);
 }
 
-static struct sysfs_ops mlog_attr_ops = {
+static const struct sysfs_ops mlog_attr_ops = {
 	.show  = mlog_show,
 	.store = mlog_store,
 };

diff --git a/fs/sysfs/file.c b/fs/sysfs/file.c
index 50b725b..ced2299 100644
--- a/fs/sysfs/file.c
+++ b/fs/sysfs/file.c

@@ -53,7 +53,7 @@
 	size_t			count;
 	loff_t			pos;
 	char			* page;
-	struct sysfs_ops	* ops;
+	const struct sysfs_ops	* ops;
 	struct mutex		mutex;
 	int			needs_read_fill;
 	int			event;
@@ -75,7 +75,7 @@
 {
 	struct sysfs_dirent *attr_sd = dentry->d_fsdata;
 	struct kobject *kobj = attr_sd->s_parent->s_dir.kobj;
-	struct sysfs_ops * ops = buffer->ops;
+	const struct sysfs_ops * ops = buffer->ops;
 	int ret = 0;
 	ssize_t count;
 
@@ -199,7 +199,7 @@
 {
 	struct sysfs_dirent *attr_sd = dentry->d_fsdata;
 	struct kobject *kobj = attr_sd->s_parent->s_dir.kobj;
-	struct sysfs_ops * ops = buffer->ops;
+	const struct sysfs_ops * ops = buffer->ops;
 	int rc;
 
 	/* need attr_sd for attr and ops, its parent for kobj */
@@ -335,7 +335,7 @@
 	struct sysfs_dirent *attr_sd = file->f_path.dentry->d_fsdata;
 	struct kobject *kobj = attr_sd->s_parent->s_dir.kobj;
 	struct sysfs_buffer *buffer;
-	struct sysfs_ops *ops;
+	const struct sysfs_ops *ops;
 	int error = -EACCES;
 	char *p;
 

diff --git a/include/linux/kobject.h b/include/linux/kobject.h
index 57a1eaa..3950d3c 100644
--- a/include/linux/kobject.h
+++ b/include/linux/kobject.h

@@ -106,7 +106,7 @@
 
 struct kobj_type {
 	void (*release)(struct kobject *kobj);
-	struct sysfs_ops *sysfs_ops;
+	const struct sysfs_ops *sysfs_ops;
 	struct attribute **default_attrs;
 };
 
@@ -132,7 +132,7 @@
 			 const char *buf, size_t count);
 };
 
-extern struct sysfs_ops kobj_sysfs_ops;
+extern const struct sysfs_ops kobj_sysfs_ops;
 
 /**
  * struct kset - a set of kobjects of a specific type, belonging to a specific subsystem.

diff --git a/kernel/params.c b/kernel/params.c
index 48370be..68396d7 100644
--- a/kernel/params.c
+++ b/kernel/params.c

@@ -722,7 +722,7 @@
 	return ret;
 }
 
-static struct sysfs_ops module_sysfs_ops = {
+static const struct sysfs_ops module_sysfs_ops = {
 	.show = module_attr_show,
 	.store = module_attr_store,
 };

diff --git a/lib/kobject.c b/lib/kobject.c
index cecf5a0..8115eb1 100644
--- a/lib/kobject.c
+++ b/lib/kobject.c

@@ -700,7 +700,7 @@
 	return ret;
 }
 
-struct sysfs_ops kobj_sysfs_ops = {
+const struct sysfs_ops kobj_sysfs_ops = {
 	.show	= kobj_attr_show,
 	.store	= kobj_attr_store,
 };

diff --git a/mm/slub.c b/mm/slub.c
index a26753c..a2b8969 100644
--- a/mm/slub.c
+++ b/mm/slub.c

@@ -4390,7 +4390,7 @@
 	kfree(s);
 }
 
-static struct sysfs_ops slab_sysfs_ops = {
+static const struct sysfs_ops slab_sysfs_ops = {
 	.show = slab_attr_show,
 	.store = slab_attr_store,
 };

diff --git a/net/bridge/br_private.h b/net/bridge/br_private.h
index 1cf2cef..fef0384 100644
--- a/net/bridge/br_private.h
+++ b/net/bridge/br_private.h

@@ -423,7 +423,7 @@
 
 #ifdef CONFIG_SYSFS
 /* br_sysfs_if.c */
-extern struct sysfs_ops brport_sysfs_ops;
+extern const struct sysfs_ops brport_sysfs_ops;
 extern int br_sysfs_addif(struct net_bridge_port *p);
 
 /* br_sysfs_br.c */

diff --git a/net/bridge/br_sysfs_if.c b/net/bridge/br_sysfs_if.c
index 696596c..0b99164 100644
--- a/net/bridge/br_sysfs_if.c
+++ b/net/bridge/br_sysfs_if.c

@@ -238,7 +238,7 @@
 	return ret;
 }
 
-struct sysfs_ops brport_sysfs_ops = {
+const struct sysfs_ops brport_sysfs_ops = {
 	.show = brport_show,
 	.store = brport_store,
 };

diff --git a/samples/kobject/kset-example.c b/samples/kobject/kset-example.c
index 7c60881..3b126d1 100644
--- a/samples/kobject/kset-example.c
+++ b/samples/kobject/kset-example.c

@@ -87,7 +87,7 @@
 }
 
 /* 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,
 };