Re: [PATCH 29/31] Constify struct sysfs_ops for 2.6.32 v1

[Emese Revfy <re.emese@gmail.com>]

Added netdev@vger.kernel.org to CC.

> From: Emese Revfy <re.emese@gmail.com>
> 
> Constify struct sysfs_ops.
> 
> Signed-off-by: Emese Revfy <re.emese@gmail.com>
> ---
>  arch/ia64/kernel/topology.c           |    2 +-
>  arch/powerpc/kernel/cacheinfo.c       |    2 +-
>  arch/sh/kernel/cpu/sh4/sq.c           |    2 +-
>  arch/x86/kernel/cpu/intel_cacheinfo.c |    2 +-
>  arch/x86/kernel/cpu/mcheck/mce_amd.c  |    2 +-
>  block/blk-integrity.c                 |    2 +-
>  block/blk-sysfs.c                     |    2 +-
>  block/elevator.c                      |    2 +-
>  drivers/base/bus.c                    |    4 ++--
>  drivers/base/class.c                  |    2 +-
>  drivers/base/core.c                   |    2 +-
>  drivers/base/sys.c                    |    4 ++--
>  drivers/block/pktcdvd.c               |    2 +-
>  drivers/cpufreq/cpufreq.c             |    2 +-
>  drivers/cpuidle/sysfs.c               |    4 ++--
>  drivers/dma/ioat/dma.c                |    2 +-
>  drivers/dma/ioat/dma.h                |    2 +-
>  drivers/edac/edac_device_sysfs.c      |    6 +++---
>  drivers/edac/edac_mc_sysfs.c          |    4 ++--
>  drivers/edac/edac_pci_sysfs.c         |    4 ++--
>  drivers/firmware/edd.c                |    2 +-
>  drivers/firmware/efivars.c            |    2 +-
>  drivers/firmware/iscsi_ibft.c         |    2 +-
>  drivers/firmware/memmap.c             |    2 +-
>  drivers/gpu/drm/ttm/ttm_bo.c          |    2 +-
>  drivers/gpu/drm/ttm/ttm_memory.c      |    2 +-
>  drivers/infiniband/core/cm.c          |    2 +-
>  drivers/infiniband/core/sysfs.c       |    2 +-
>  drivers/md/dm-sysfs.c                 |    2 +-
>  drivers/md/md.c                       |    4 ++--
>  drivers/net/ibmveth.c                 |    2 +-
>  drivers/net/iseries_veth.c            |    4 ++--
>  drivers/parisc/pdc_stable.c           |    2 +-
>  drivers/pci/hotplug/fakephp.c         |    2 +-
>  drivers/pci/slot.c                    |    2 +-
>  drivers/uio/uio.c                     |    4 ++--
>  drivers/uwb/wlp/sysfs.c               |    3 +--
>  drivers/xen/sys-hypervisor.c          |    2 +-
>  fs/btrfs/sysfs.c                      |    4 ++--
>  fs/dlm/lockspace.c                    |    2 +-
>  fs/ext4/super.c                       |    2 +-
>  fs/gfs2/sys.c                         |    2 +-
>  fs/ocfs2/cluster/masklog.c            |    2 +-
>  fs/sysfs/file.c                       |    8 ++++----
>  include/linux/kobject.h               |    4 ++--
>  include/linux/sysfs.h                 |    4 ++--
>  kernel/params.c                       |    2 +-
>  lib/kobject.c                         |    2 +-
>  mm/slub.c                             |    2 +-
>  net/bridge/br_private.h               |    2 +-
>  net/bridge/br_sysfs_if.c              |    2 +-
>  samples/kobject/kset-example.c        |    2 +-
>  52 files changed, 68 insertions(+), 69 deletions(-)
> 
> 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 @@ static ssize_t cache_show(struct kobject * kobj, struct attribute * attr, char *
>  	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 @@ static struct kobj_attribute *cache_index_opt_attrs[] = {
>  	&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 8a8a993..7b3079b 100644
> --- a/arch/sh/kernel/cpu/sh4/sq.c
> +++ b/arch/sh/kernel/cpu/sh4/sq.c
> @@ -327,7 +327,7 @@ static struct attribute *sq_sysfs_attrs[] = {
>  	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 804c40e..dc7f8a7 100644
> --- a/arch/x86/kernel/cpu/intel_cacheinfo.c
> +++ b/arch/x86/kernel/cpu/intel_cacheinfo.c
> @@ -860,7 +860,7 @@ static ssize_t store(struct kobject *kobj, struct attribute *attr,
>  	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 @@ static ssize_t store(struct kobject *kobj, struct attribute *attr,
>  	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 @@ static struct attribute *integrity_attrs[] = {
>  	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 8a6d81a..dc3e40b 100644
> --- a/block/blk-sysfs.c
> +++ b/block/blk-sysfs.c
> @@ -414,7 +414,7 @@ static void blk_release_queue(struct kobject *kobj)
>  	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 a847046..75a1746 100644
> --- a/block/elevator.c
> +++ b/block/elevator.c
> @@ -889,7 +889,7 @@ elv_attr_store(struct kobject *kobj, struct attribute *attr,
>  	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 63c143e..66ddfea 100644
> --- a/drivers/base/bus.c
> +++ b/drivers/base/bus.c
> @@ -70,7 +70,7 @@ static ssize_t drv_attr_store(struct kobject *kobj, struct attribute *attr,
>  	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 @@ static ssize_t bus_attr_store(struct kobject *kobj, struct attribute *attr,
>  	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 161746d..c2359c8 100644
> --- a/drivers/base/class.c
> +++ b/drivers/base/class.c
> @@ -61,7 +61,7 @@ static void class_release(struct kobject *kobj)
>  			 "be careful\n", class->name);
>  }
>  
> -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 6bee6af..35aeae5 100644
> --- a/drivers/base/core.c
> +++ b/drivers/base/core.c
> @@ -93,7 +93,7 @@ static ssize_t dev_attr_store(struct kobject *kobj, struct attribute *attr,
>  	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 0d90390..dd710ca 100644
> --- a/drivers/base/sys.c
> +++ b/drivers/base/sys.c
> @@ -54,7 +54,7 @@ sysdev_store(struct kobject *kobj, struct attribute *attr,
>  	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 @@ static ssize_t sysdev_class_store(struct kobject *kobj, struct attribute *attr,
>  	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 2ddf03a..44eab68 100644
> --- a/drivers/block/pktcdvd.c
> +++ b/drivers/block/pktcdvd.c
> @@ -284,7 +284,7 @@ static ssize_t kobj_pkt_store(struct kobject *kobj,
>  	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 ff57c40..76da29f 100644
> --- a/drivers/cpufreq/cpufreq.c
> +++ b/drivers/cpufreq/cpufreq.c
> @@ -750,7 +750,7 @@ static void cpufreq_sysfs_release(struct kobject *kobj)
>  	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 97b0038..aaaa360 100644
> --- a/drivers/cpuidle/sysfs.c
> +++ b/drivers/cpuidle/sysfs.c
> @@ -191,7 +191,7 @@ static ssize_t cpuidle_store(struct kobject * kobj, struct attribute * attr,
>  	return ret;
>  }
>  
> -static struct sysfs_ops cpuidle_sysfs_ops = {
> +static const struct sysfs_ops cpuidle_sysfs_ops = {
>  	.show = cpuidle_show,
>  	.store = cpuidle_store,
>  };
> @@ -277,7 +277,7 @@ static ssize_t cpuidle_state_show(struct kobject * kobj,
>  	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 c524d36..fc2d0b6 100644
> --- a/drivers/dma/ioat/dma.c
> +++ b/drivers/dma/ioat/dma.c
> @@ -1146,7 +1146,7 @@ ioat_attr_show(struct kobject *kobj, struct attribute *attr, char *page)
>  	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 45edde9..c72e7fe 100644
> --- a/drivers/dma/ioat/dma.h
> +++ b/drivers/dma/ioat/dma.h
> @@ -329,7 +329,7 @@ bool ioat_cleanup_preamble(struct ioat_chan_common *chan,
>  			   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 @@ static ssize_t edac_dev_ctl_info_store(struct kobject *kobj,
>  }
>  
>  /* 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 @@ static ssize_t edac_dev_instance_store(struct kobject *kobj,
>  }
>  
>  /* 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 @@ static ssize_t edac_dev_block_store(struct kobject *kobj,
>  }
>  
>  /* 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 @@ static ssize_t csrowdev_store(struct kobject *kobj, struct attribute *attr,
>  	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 @@ static ssize_t mcidev_store(struct kobject *kobj, struct attribute *attr,
>  }
>  
>  /* 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 422728c..79217da 100644
> --- a/drivers/edac/edac_pci_sysfs.c
> +++ b/drivers/edac/edac_pci_sysfs.c
> @@ -121,7 +121,7 @@ static ssize_t edac_pci_instance_store(struct kobject *kobj,
>  }
>  
>  /* 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 @@ static ssize_t edac_pci_dev_store(struct kobject *kobj,
>  	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 @@ 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 f4f709d..082f06e 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 051d1eb..0a5d4e7 100644
> --- a/drivers/firmware/iscsi_ibft.c
> +++ b/drivers/firmware/iscsi_ibft.c
> @@ -525,7 +525,7 @@ 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 56f9234..8c58c7b 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,
>  };
>  
> diff --git a/drivers/gpu/drm/ttm/ttm_bo.c b/drivers/gpu/drm/ttm/ttm_bo.c
> index 87c0625..d9a23ef 100644
> --- a/drivers/gpu/drm/ttm/ttm_bo.c
> +++ b/drivers/gpu/drm/ttm/ttm_bo.c
> @@ -67,7 +67,7 @@ static struct attribute *ttm_bo_global_attrs[] = {
>  	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 072c281..d8ef483 100644
> --- a/drivers/gpu/drm/ttm/ttm_memory.c
> +++ b/drivers/gpu/drm/ttm/ttm_memory.c
> @@ -152,7 +152,7 @@ static struct attribute *ttm_mem_zone_attrs[] = {
>  	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 @@ static ssize_t cm_show_counter(struct kobject *obj, struct attribute *attr,
>  		       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 @@ static ssize_t port_attr_show(struct kobject *kobj,
>  	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 4b04590..13a77b2 100644
> --- a/drivers/md/dm-sysfs.c
> +++ b/drivers/md/dm-sysfs.c
> @@ -75,7 +75,7 @@ static struct attribute *dm_attrs[] = {
>  	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 b182f86..431d54d 100644
> --- a/drivers/md/md.c
> +++ b/drivers/md/md.c
> @@ -2505,7 +2505,7 @@ static void rdev_free(struct kobject *ko)
>  	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,
>  };
> @@ -3875,7 +3875,7 @@ static void md_free(struct kobject *ko)
>  	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 5862282..7cce8cb 100644
> --- a/drivers/net/ibmveth.c
> +++ b/drivers/net/ibmveth.c
> @@ -1577,7 +1577,7 @@ static struct attribute * veth_pool_attrs[] = {
>  	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 aa7286b..a61394f 100644
> --- a/drivers/net/iseries_veth.c
> +++ b/drivers/net/iseries_veth.c
> @@ -384,7 +384,7 @@ static struct attribute *veth_cnx_default_attrs[] = {
>  	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 @@ static struct attribute *veth_port_default_attrs[] = {
>  	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 13a64bc..ad62835 100644
> --- a/drivers/parisc/pdc_stable.c
> +++ b/drivers/parisc/pdc_stable.c
> @@ -481,7 +481,7 @@ pdcspath_attr_store(struct kobject *kobj, struct attribute *attr,
>  	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 void legacy_release(struct kobject *kobj)
>  }
>  
>  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 8c02b6c..5584d8e 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,
>  	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 @@ static ssize_t map_type_show(struct kobject *kobj, struct attribute *attr,
>  	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 @@ static ssize_t portio_type_show(struct kobject *kobj, struct attribute *attr,
>  	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 @@ ssize_t wlp_wss_attr_store(struct kobject *kobj, struct attribute *attr,
>  	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/xen/sys-hypervisor.c b/drivers/xen/sys-hypervisor.c
> index 88a60e0..6783cc2 100644
> --- a/drivers/xen/sys-hypervisor.c
> +++ b/drivers/xen/sys-hypervisor.c
> @@ -425,7 +425,7 @@ static ssize_t hyp_sysfs_store(struct kobject *kobj,
>  	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 @@ static void btrfs_root_release(struct kobject *kobj)
>  	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 d489fcc..5b0bd1e 100644
> --- a/fs/dlm/lockspace.c
> +++ b/fs/dlm/lockspace.c
> @@ -148,7 +148,7 @@ static void lockspace_kobj_release(struct kobject *k)
>  	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 d4ca92a..b0594f3 100644
> --- a/fs/ext4/super.c
> +++ b/fs/ext4/super.c
> @@ -2251,7 +2251,7 @@ static void ext4_sb_release(struct kobject *kobj)
>  }
>  
>  
> -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 4463297..cc946e8 100644
> --- a/fs/gfs2/sys.c
> +++ b/fs/gfs2/sys.c
> @@ -49,7 +49,7 @@ static ssize_t gfs2_attr_store(struct kobject *kobj, struct attribute *attr,
>  	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 1cd2934..880b5d2 100644
> --- a/fs/ocfs2/cluster/masklog.c
> +++ b/fs/ocfs2/cluster/masklog.c
> @@ -135,7 +135,7 @@ static ssize_t mlog_store(struct kobject *obj, struct attribute *attr,
>  	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 f5ea468..b59b2e4 100644
> --- a/fs/sysfs/file.c
> +++ b/fs/sysfs/file.c
> @@ -53,7 +53,7 @@ struct sysfs_buffer {
>  	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 @@ static int fill_read_buffer(struct dentry * dentry, struct sysfs_buffer * buffer
>  {
>  	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 @@ flush_write_buffer(struct dentry * dentry, struct sysfs_buffer * buffer, size_t
>  {
>  	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 @@ static int sysfs_open_file(struct inode *inode, struct file *file)
>  	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 58ae8e0..072cee4 100644
> --- a/include/linux/kobject.h
> +++ b/include/linux/kobject.h
> @@ -106,7 +106,7 @@ extern char *kobject_get_path(struct kobject *kobj, gfp_t flag);
>  
>  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 @@ struct kobj_attribute {
>  			 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/include/linux/sysfs.h b/include/linux/sysfs.h
> index 9d68fed..71f02cc 100644
> --- a/include/linux/sysfs.h
> +++ b/include/linux/sysfs.h
> @@ -75,8 +75,8 @@ struct bin_attribute {
>  };
>  
>  struct sysfs_ops {
> -	ssize_t	(*show)(struct kobject *, struct attribute *,char *);
> -	ssize_t	(*store)(struct kobject *,struct attribute *,const char *, size_t);
> +	ssize_t	(* const show)(struct kobject *, struct attribute *,char *);
> +	ssize_t	(* const store)(struct kobject *,struct attribute *,const char *, size_t);
>  };
>  
>  struct sysfs_dirent;
> diff --git a/kernel/params.c b/kernel/params.c
> index d656c27..8b060d0 100644
> --- a/kernel/params.c
> +++ b/kernel/params.c
> @@ -725,7 +725,7 @@ static ssize_t module_attr_store(struct kobject *kobj,
>  	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 b512b74..6567393 100644
> --- a/lib/kobject.c
> +++ b/lib/kobject.c
> @@ -700,7 +700,7 @@ static ssize_t kobj_attr_store(struct kobject *kobj, struct attribute *attr,
>  	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 4996fc7..7c047ba 100644
> --- a/mm/slub.c
> +++ b/mm/slub.c
> @@ -4503,7 +4503,7 @@ static void kmem_cache_release(struct kobject *kobj)
>  	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 2114e45..c53bdd9 100644
> --- a/net/bridge/br_private.h
> +++ b/net/bridge/br_private.h
> @@ -254,7 +254,7 @@ extern void br_ifinfo_notify(int event, struct net_bridge_port *port);
>  
>  #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 820643a..ce77fb3 100644
> --- a/net/bridge/br_sysfs_if.c
> +++ b/net/bridge/br_sysfs_if.c
> @@ -220,7 +220,7 @@ static ssize_t brport_store(struct kobject * kobj,
>  	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 45b7d56..19e828c 100644
> --- a/samples/kobject/kset-example.c
> +++ b/samples/kobject/kset-example.c
> @@ -87,7 +87,7 @@ static ssize_t foo_attr_store(struct kobject *kobj,
>  }
>  
>  /* 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,
>  };
> 
>