Re: [Openipmi-developer] [PATCH v2] treewide: const qualify ctl_tables where applicable
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Re: [Openipmi-developer] [PATCH v2] treewide: const qualify ctl_tables where applicable
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From: Anna S. <ann...@or...> - 2025-01-10 18:29:50
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On 1/10/25 9:16 AM, Joel Granados wrote:
> Add the const qualifier to all the ctl_tables in the tree except for
> watchdog_hardlockup_sysctl, memory_allocation_profiling_sysctls,
> loadpin_sysctl_table and the ones calling register_net_sysctl (./net,
> drivers/inifiniband dirs). These are special cases as they use a
> registration function with a non-const qualified ctl_table argument or
> modify the arrays before passing them on to the registration function.
>
> Constifying ctl_table structs will prevent the modification of
> proc_handler function pointers as the arrays would reside in .rodata.
> This is made possible after commit 78eb4ea25cd5 ("sysctl: treewide:
> constify the ctl_table argument of proc_handlers") constified all the
> proc_handlers.
>
> Created this by running an spatch followed by a sed command:
> Spatch:
> virtual patch
>
> @
> depends on !(file in "net")
> disable optional_qualifier
> @
> identifier table_name != {watchdog_hardlockup_sysctl,iwcm_ctl_table,ucma_ctl_table,memory_allocation_profiling_sysctls,loadpin_sysctl_table};
> @@
>
> + const
> struct ctl_table table_name [] = { ... };
>
> sed:
> sed --in-place \
> -e "s/struct ctl_table .table = &uts_kern/const struct ctl_table *table = \&uts_kern/" \
> kernel/utsname_sysctl.c
>
> Reviewed-by: Song Liu <so...@ke...>
> Acked-by: Steven Rostedt (Google) <ro...@go...> # for kernel/trace/
> Reviewed-by: Martin K. Petersen <mar...@or...> # SCSI
> Reviewed-by: Darrick J. Wong <dj...@ke...> # xfs
> Acked-by: Jani Nikula <jan...@in...>
> Acked-by: Corey Minyard <cmi...@mv...>
> Signed-off-by: Joel Granados <joe...@ke...>
> ---
> This treewide commit builds upon the work Thomas began a few releases
> ago [1], where he laid the groundwork for constifying ctl_tables. We
> implement constification throughout the tree, with the exception of the
> ctl_tables in the "net" directory. Those are special in that they treat
> the ctl_table as non-const but we can take them at a later point.
>
> Upstreaming:
> ===========
> It is late in the release cycle, but I'm hopeful that we can get this
> in for the upcoming merge window and this is why:
> 1. We don't use linux-next: As with previous treewide changes similar to
> this one [1], we avoid using linux-next in order to avoid unwanted
> merge conflicts
> 2. This is a non-functional change: which lowers the probability of
> unforeseen errors or regressions.
> 3. It will have at least 2 weeks to be tested/reviewed: The PULL should
> be sent at the end of the merge window, giving it at least 2 weeks.
> And if there are more release candidates after rc6, there will be
> more time.
>
> Testing:
> ========
> 1. Currently being tested in 0-day
> 2. sysctl self-tests/kunit-tests
>
> Reduced To/Cc:
> ==============
> b4 originally gave me 200 ppl that this should go out to (which seems a
> bit overkill from my point of view). So I left the mailing lists and
> reduced the To: the ppl previously involved in the effort and sysctl
> maintainers. Please tell me if I missed someone important to the
> constification effort.
>
> Comments are greatly appreciated.
>
> Changes in v2:
> - watchdog_hardlockup_sysctl, memory_allocation_profiling_sysctls,
> loadpin_sysctl_table, iwcm_ctl_table and ucma_ctl_table where removed
> from patchset as they change the sysctl array before registration.
> - Added reviewed-by tags
> - Link to v1: https://lore.kernel.org/r/202...@ke...
> Best
>
> [1] https://lore.kernel.org/202...@jo...
>
> --
> ---
>
> ---
> arch/arm/kernel/isa.c | 2 +-
> arch/arm64/kernel/fpsimd.c | 4 ++--
> arch/arm64/kernel/process.c | 2 +-
> arch/powerpc/kernel/idle.c | 2 +-
> arch/powerpc/platforms/pseries/mobility.c | 2 +-
> arch/riscv/kernel/process.c | 2 +-
> arch/riscv/kernel/vector.c | 2 +-
> arch/s390/appldata/appldata_base.c | 2 +-
> arch/s390/kernel/debug.c | 2 +-
> arch/s390/kernel/hiperdispatch.c | 2 +-
> arch/s390/kernel/topology.c | 2 +-
> arch/s390/mm/cmm.c | 2 +-
> arch/s390/mm/pgalloc.c | 2 +-
> arch/x86/entry/vdso/vdso32-setup.c | 2 +-
> arch/x86/kernel/cpu/bus_lock.c | 2 +-
> arch/x86/kernel/itmt.c | 2 +-
> crypto/fips.c | 2 +-
> drivers/base/firmware_loader/fallback_table.c | 2 +-
> drivers/cdrom/cdrom.c | 2 +-
> drivers/char/hpet.c | 2 +-
> drivers/char/ipmi/ipmi_poweroff.c | 2 +-
> drivers/char/random.c | 2 +-
> drivers/gpu/drm/i915/i915_perf.c | 2 +-
> drivers/gpu/drm/xe/xe_observation.c | 2 +-
> drivers/hv/hv_common.c | 2 +-
> drivers/macintosh/mac_hid.c | 2 +-
> drivers/md/md.c | 2 +-
> drivers/misc/sgi-xp/xpc_main.c | 4 ++--
> drivers/perf/arm_pmuv3.c | 2 +-
> drivers/perf/riscv_pmu_sbi.c | 2 +-
> drivers/scsi/scsi_sysctl.c | 2 +-
> drivers/scsi/sg.c | 2 +-
> drivers/tty/tty_io.c | 2 +-
> drivers/xen/balloon.c | 2 +-
> fs/aio.c | 2 +-
> fs/cachefiles/error_inject.c | 2 +-
> fs/coda/sysctl.c | 2 +-
> fs/coredump.c | 2 +-
> fs/dcache.c | 2 +-
> fs/devpts/inode.c | 2 +-
> fs/eventpoll.c | 2 +-
> fs/exec.c | 2 +-
> fs/file_table.c | 2 +-
> fs/fuse/sysctl.c | 2 +-
> fs/inode.c | 2 +-
> fs/lockd/svc.c | 2 +-
> fs/locks.c | 2 +-
> fs/namei.c | 2 +-
> fs/namespace.c | 2 +-
> fs/nfs/nfs4sysctl.c | 2 +-
> fs/nfs/sysctl.c | 2 +-
> fs/notify/dnotify/dnotify.c | 2 +-
> fs/notify/fanotify/fanotify_user.c | 2 +-
> fs/notify/inotify/inotify_user.c | 2 +-
> fs/ocfs2/stackglue.c | 2 +-
> fs/pipe.c | 2 +-
> fs/quota/dquot.c | 2 +-
> fs/sysctls.c | 2 +-
> fs/userfaultfd.c | 2 +-
> fs/verity/init.c | 2 +-
> fs/xfs/xfs_sysctl.c | 2 +-
> init/do_mounts_initrd.c | 2 +-
> io_uring/io_uring.c | 2 +-
> ipc/ipc_sysctl.c | 2 +-
> ipc/mq_sysctl.c | 2 +-
> kernel/acct.c | 2 +-
> kernel/bpf/syscall.c | 2 +-
> kernel/delayacct.c | 2 +-
> kernel/exit.c | 2 +-
> kernel/hung_task.c | 2 +-
> kernel/kexec_core.c | 2 +-
> kernel/kprobes.c | 2 +-
> kernel/latencytop.c | 2 +-
> kernel/locking/lockdep.c | 2 +-
> kernel/panic.c | 2 +-
> kernel/pid_namespace.c | 2 +-
> kernel/pid_sysctl.h | 2 +-
> kernel/printk/sysctl.c | 2 +-
> kernel/reboot.c | 2 +-
> kernel/sched/autogroup.c | 2 +-
> kernel/sched/core.c | 2 +-
> kernel/sched/deadline.c | 2 +-
> kernel/sched/fair.c | 2 +-
> kernel/sched/rt.c | 2 +-
> kernel/sched/topology.c | 2 +-
> kernel/seccomp.c | 2 +-
> kernel/signal.c | 2 +-
> kernel/stackleak.c | 2 +-
> kernel/sysctl-test.c | 6 +++---
> kernel/sysctl.c | 4 ++--
> kernel/time/timer.c | 2 +-
> kernel/trace/ftrace.c | 2 +-
> kernel/trace/trace_events_user.c | 2 +-
> kernel/umh.c | 2 +-
> kernel/utsname_sysctl.c | 4 ++--
> kernel/watchdog.c | 2 +-
> lib/test_sysctl.c | 6 +++---
> mm/compaction.c | 2 +-
> mm/hugetlb.c | 2 +-
> mm/hugetlb_vmemmap.c | 2 +-
> mm/memory-failure.c | 2 +-
> mm/oom_kill.c | 2 +-
> mm/page-writeback.c | 2 +-
> mm/page_alloc.c | 2 +-
> security/apparmor/lsm.c | 2 +-
> security/keys/sysctl.c | 2 +-
> security/yama/yama_lsm.c | 2 +-
> 107 files changed, 115 insertions(+), 115 deletions(-)
>
> diff --git a/arch/arm/kernel/isa.c b/arch/arm/kernel/isa.c
> index 905b1b191546..db8be609fab2 100644
> --- a/arch/arm/kernel/isa.c
> +++ b/arch/arm/kernel/isa.c
> @@ -16,7 +16,7 @@
>
> static unsigned int isa_membase, isa_portbase, isa_portshift;
>
> -static struct ctl_table ctl_isa_vars[] = {
> +static const struct ctl_table ctl_isa_vars[] = {
> {
> .procname = "membase",
> .data = &isa_membase,
> diff --git a/arch/arm64/kernel/fpsimd.c b/arch/arm64/kernel/fpsimd.c
> index 8c4c1a2186cc..2b601d88762d 100644
> --- a/arch/arm64/kernel/fpsimd.c
> +++ b/arch/arm64/kernel/fpsimd.c
> @@ -562,7 +562,7 @@ static int vec_proc_do_default_vl(const struct ctl_table *table, int write,
> return 0;
> }
>
> -static struct ctl_table sve_default_vl_table[] = {
> +static const struct ctl_table sve_default_vl_table[] = {
> {
> .procname = "sve_default_vector_length",
> .mode = 0644,
> @@ -585,7 +585,7 @@ static int __init sve_sysctl_init(void) { return 0; }
> #endif /* ! (CONFIG_ARM64_SVE && CONFIG_SYSCTL) */
>
> #if defined(CONFIG_ARM64_SME) && defined(CONFIG_SYSCTL)
> -static struct ctl_table sme_default_vl_table[] = {
> +static const struct ctl_table sme_default_vl_table[] = {
> {
> .procname = "sme_default_vector_length",
> .mode = 0644,
> diff --git a/arch/arm64/kernel/process.c b/arch/arm64/kernel/process.c
> index 2968a33bb3bc..42faebb7b712 100644
> --- a/arch/arm64/kernel/process.c
> +++ b/arch/arm64/kernel/process.c
> @@ -859,7 +859,7 @@ long get_tagged_addr_ctrl(struct task_struct *task)
> * disable it for tasks that already opted in to the relaxed ABI.
> */
>
> -static struct ctl_table tagged_addr_sysctl_table[] = {
> +static const struct ctl_table tagged_addr_sysctl_table[] = {
> {
> .procname = "tagged_addr_disabled",
> .mode = 0644,
> diff --git a/arch/powerpc/kernel/idle.c b/arch/powerpc/kernel/idle.c
> index 30b56c67fa61..e527cd3ef128 100644
> --- a/arch/powerpc/kernel/idle.c
> +++ b/arch/powerpc/kernel/idle.c
> @@ -97,7 +97,7 @@ void power4_idle(void)
> /*
> * Register the sysctl to set/clear powersave_nap.
> */
> -static struct ctl_table powersave_nap_ctl_table[] = {
> +static const struct ctl_table powersave_nap_ctl_table[] = {
> {
> .procname = "powersave-nap",
> .data = &powersave_nap,
> diff --git a/arch/powerpc/platforms/pseries/mobility.c b/arch/powerpc/platforms/pseries/mobility.c
> index 1798f0f14d58..62bd8e2d5d4c 100644
> --- a/arch/powerpc/platforms/pseries/mobility.c
> +++ b/arch/powerpc/platforms/pseries/mobility.c
> @@ -53,7 +53,7 @@ struct update_props_workarea {
> static unsigned int nmi_wd_lpm_factor = 200;
>
> #ifdef CONFIG_SYSCTL
> -static struct ctl_table nmi_wd_lpm_factor_ctl_table[] = {
> +static const struct ctl_table nmi_wd_lpm_factor_ctl_table[] = {
> {
> .procname = "nmi_wd_lpm_factor",
> .data = &nmi_wd_lpm_factor,
> diff --git a/arch/riscv/kernel/process.c b/arch/riscv/kernel/process.c
> index 58b6482c2bf6..7891294abf49 100644
> --- a/arch/riscv/kernel/process.c
> +++ b/arch/riscv/kernel/process.c
> @@ -364,7 +364,7 @@ static bool try_to_set_pmm(unsigned long value)
> * disable it for tasks that already opted in to the relaxed ABI.
> */
>
> -static struct ctl_table tagged_addr_sysctl_table[] = {
> +static const struct ctl_table tagged_addr_sysctl_table[] = {
> {
> .procname = "tagged_addr_disabled",
> .mode = 0644,
> diff --git a/arch/riscv/kernel/vector.c b/arch/riscv/kernel/vector.c
> index 821818886fab..d022b028ac3f 100644
> --- a/arch/riscv/kernel/vector.c
> +++ b/arch/riscv/kernel/vector.c
> @@ -287,7 +287,7 @@ long riscv_v_vstate_ctrl_set_current(unsigned long arg)
>
> #ifdef CONFIG_SYSCTL
>
> -static struct ctl_table riscv_v_default_vstate_table[] = {
> +static const struct ctl_table riscv_v_default_vstate_table[] = {
> {
> .procname = "riscv_v_default_allow",
> .data = &riscv_v_implicit_uacc,
> diff --git a/arch/s390/appldata/appldata_base.c b/arch/s390/appldata/appldata_base.c
> index 91a30e017d65..dd7ba7587dd5 100644
> --- a/arch/s390/appldata/appldata_base.c
> +++ b/arch/s390/appldata/appldata_base.c
> @@ -52,7 +52,7 @@ static int appldata_interval_handler(const struct ctl_table *ctl, int write,
> void *buffer, size_t *lenp, loff_t *ppos);
>
> static struct ctl_table_header *appldata_sysctl_header;
> -static struct ctl_table appldata_table[] = {
> +static const struct ctl_table appldata_table[] = {
> {
> .procname = "timer",
> .mode = S_IRUGO | S_IWUSR,
> diff --git a/arch/s390/kernel/debug.c b/arch/s390/kernel/debug.c
> index de19fd8a6a95..2c245c2bce4f 100644
> --- a/arch/s390/kernel/debug.c
> +++ b/arch/s390/kernel/debug.c
> @@ -972,7 +972,7 @@ static int s390dbf_procactive(const struct ctl_table *table, int write,
> return 0;
> }
>
> -static struct ctl_table s390dbf_table[] = {
> +static const struct ctl_table s390dbf_table[] = {
> {
> .procname = "debug_stoppable",
> .data = &debug_stoppable,
> diff --git a/arch/s390/kernel/hiperdispatch.c b/arch/s390/kernel/hiperdispatch.c
> index 2a99a216ab62..7857a7e8e56c 100644
> --- a/arch/s390/kernel/hiperdispatch.c
> +++ b/arch/s390/kernel/hiperdispatch.c
> @@ -292,7 +292,7 @@ static int hiperdispatch_ctl_handler(const struct ctl_table *ctl, int write,
> return 0;
> }
>
> -static struct ctl_table hiperdispatch_ctl_table[] = {
> +static const struct ctl_table hiperdispatch_ctl_table[] = {
> {
> .procname = "hiperdispatch",
> .mode = 0644,
> diff --git a/arch/s390/kernel/topology.c b/arch/s390/kernel/topology.c
> index 4f9c301a705b..5067293ef69d 100644
> --- a/arch/s390/kernel/topology.c
> +++ b/arch/s390/kernel/topology.c
> @@ -662,7 +662,7 @@ static int polarization_ctl_handler(const struct ctl_table *ctl, int write,
> return set_polarization(polarization);
> }
>
> -static struct ctl_table topology_ctl_table[] = {
> +static const struct ctl_table topology_ctl_table[] = {
> {
> .procname = "topology",
> .mode = 0644,
> diff --git a/arch/s390/mm/cmm.c b/arch/s390/mm/cmm.c
> index d01724a715d0..939e3bec2db7 100644
> --- a/arch/s390/mm/cmm.c
> +++ b/arch/s390/mm/cmm.c
> @@ -332,7 +332,7 @@ static int cmm_timeout_handler(const struct ctl_table *ctl, int write,
> return 0;
> }
>
> -static struct ctl_table cmm_table[] = {
> +static const struct ctl_table cmm_table[] = {
> {
> .procname = "cmm_pages",
> .mode = 0644,
> diff --git a/arch/s390/mm/pgalloc.c b/arch/s390/mm/pgalloc.c
> index 58696a0c4e4a..18d3176e44fb 100644
> --- a/arch/s390/mm/pgalloc.c
> +++ b/arch/s390/mm/pgalloc.c
> @@ -21,7 +21,7 @@
> int page_table_allocate_pgste = 0;
> EXPORT_SYMBOL(page_table_allocate_pgste);
>
> -static struct ctl_table page_table_sysctl[] = {
> +static const struct ctl_table page_table_sysctl[] = {
> {
> .procname = "allocate_pgste",
> .data = &page_table_allocate_pgste,
> diff --git a/arch/x86/entry/vdso/vdso32-setup.c b/arch/x86/entry/vdso/vdso32-setup.c
> index 76e4e74f35b5..f6d2d8aba643 100644
> --- a/arch/x86/entry/vdso/vdso32-setup.c
> +++ b/arch/x86/entry/vdso/vdso32-setup.c
> @@ -57,7 +57,7 @@ __setup_param("vdso=", vdso_setup, vdso32_setup, 0);
> /* Register vsyscall32 into the ABI table */
> #include <linux/sysctl.h>
>
> -static struct ctl_table abi_table2[] = {
> +static const struct ctl_table abi_table2[] = {
> {
> .procname = "vsyscall32",
> .data = &vdso32_enabled,
> diff --git a/arch/x86/kernel/cpu/bus_lock.c b/arch/x86/kernel/cpu/bus_lock.c
> index 704e9241b964..6cba85c79d42 100644
> --- a/arch/x86/kernel/cpu/bus_lock.c
> +++ b/arch/x86/kernel/cpu/bus_lock.c
> @@ -49,7 +49,7 @@ static unsigned int sysctl_sld_mitigate = 1;
> static DEFINE_SEMAPHORE(buslock_sem, 1);
>
> #ifdef CONFIG_PROC_SYSCTL
> -static struct ctl_table sld_sysctls[] = {
> +static const struct ctl_table sld_sysctls[] = {
> {
> .procname = "split_lock_mitigate",
> .data = &sysctl_sld_mitigate,
> diff --git a/arch/x86/kernel/itmt.c b/arch/x86/kernel/itmt.c
> index 51b805c727fc..083d8c4deb2b 100644
> --- a/arch/x86/kernel/itmt.c
> +++ b/arch/x86/kernel/itmt.c
> @@ -64,7 +64,7 @@ static int sched_itmt_update_handler(const struct ctl_table *table, int write,
> return ret;
> }
>
> -static struct ctl_table itmt_kern_table[] = {
> +static const struct ctl_table itmt_kern_table[] = {
> {
> .procname = "sched_itmt_enabled",
> .data = &sysctl_sched_itmt_enabled,
> diff --git a/crypto/fips.c b/crypto/fips.c
> index 8a784018ebfc..ec6574596e59 100644
> --- a/crypto/fips.c
> +++ b/crypto/fips.c
> @@ -41,7 +41,7 @@ __setup("fips=", fips_enable);
> static char fips_name[] = FIPS_MODULE_NAME;
> static char fips_version[] = FIPS_MODULE_VERSION;
>
> -static struct ctl_table crypto_sysctl_table[] = {
> +static const struct ctl_table crypto_sysctl_table[] = {
> {
> .procname = "fips_enabled",
> .data = &fips_enabled,
> diff --git a/drivers/base/firmware_loader/fallback_table.c b/drivers/base/firmware_loader/fallback_table.c
> index ddb70e29eb42..c8afc501a8a4 100644
> --- a/drivers/base/firmware_loader/fallback_table.c
> +++ b/drivers/base/firmware_loader/fallback_table.c
> @@ -25,7 +25,7 @@ struct firmware_fallback_config fw_fallback_config = {
> EXPORT_SYMBOL_NS_GPL(fw_fallback_config, "FIRMWARE_LOADER_PRIVATE");
>
> #ifdef CONFIG_SYSCTL
> -static struct ctl_table firmware_config_table[] = {
> +static const struct ctl_table firmware_config_table[] = {
> {
> .procname = "force_sysfs_fallback",
> .data = &fw_fallback_config.force_sysfs_fallback,
> diff --git a/drivers/cdrom/cdrom.c b/drivers/cdrom/cdrom.c
> index 51745ed1bbab..b163e043c687 100644
> --- a/drivers/cdrom/cdrom.c
> +++ b/drivers/cdrom/cdrom.c
> @@ -3612,7 +3612,7 @@ static int cdrom_sysctl_handler(const struct ctl_table *ctl, int write,
> }
>
> /* Place files in /proc/sys/dev/cdrom */
> -static struct ctl_table cdrom_table[] = {
> +static const struct ctl_table cdrom_table[] = {
> {
> .procname = "info",
> .data = &cdrom_sysctl_settings.info,
> diff --git a/drivers/char/hpet.c b/drivers/char/hpet.c
> index 48fe96ab4649..e110857824fc 100644
> --- a/drivers/char/hpet.c
> +++ b/drivers/char/hpet.c
> @@ -724,7 +724,7 @@ static int hpet_is_known(struct hpet_data *hdp)
> return 0;
> }
>
> -static struct ctl_table hpet_table[] = {
> +static const struct ctl_table hpet_table[] = {
> {
> .procname = "max-user-freq",
> .data = &hpet_max_freq,
> diff --git a/drivers/char/ipmi/ipmi_poweroff.c b/drivers/char/ipmi/ipmi_poweroff.c
> index 941d2dcc8c9d..de84f59468a9 100644
> --- a/drivers/char/ipmi/ipmi_poweroff.c
> +++ b/drivers/char/ipmi/ipmi_poweroff.c
> @@ -650,7 +650,7 @@ static struct ipmi_smi_watcher smi_watcher = {
> #ifdef CONFIG_PROC_FS
> #include <linux/sysctl.h>
>
> -static struct ctl_table ipmi_table[] = {
> +static const struct ctl_table ipmi_table[] = {
> { .procname = "poweroff_powercycle",
> .data = &poweroff_powercycle,
> .maxlen = sizeof(poweroff_powercycle),
> diff --git a/drivers/char/random.c b/drivers/char/random.c
> index 23ee76bbb4aa..2581186fa61b 100644
> --- a/drivers/char/random.c
> +++ b/drivers/char/random.c
> @@ -1665,7 +1665,7 @@ static int proc_do_rointvec(const struct ctl_table *table, int write, void *buf,
> return write ? 0 : proc_dointvec(table, 0, buf, lenp, ppos);
> }
>
> -static struct ctl_table random_table[] = {
> +static const struct ctl_table random_table[] = {
> {
> .procname = "poolsize",
> .data = &sysctl_poolsize,
> diff --git a/drivers/gpu/drm/i915/i915_perf.c b/drivers/gpu/drm/i915/i915_perf.c
> index 2406cda75b7b..5384d1bb4923 100644
> --- a/drivers/gpu/drm/i915/i915_perf.c
> +++ b/drivers/gpu/drm/i915/i915_perf.c
> @@ -4802,7 +4802,7 @@ int i915_perf_remove_config_ioctl(struct drm_device *dev, void *data,
> return ret;
> }
>
> -static struct ctl_table oa_table[] = {
> +static const struct ctl_table oa_table[] = {
> {
> .procname = "perf_stream_paranoid",
> .data = &i915_perf_stream_paranoid,
> diff --git a/drivers/gpu/drm/xe/xe_observation.c b/drivers/gpu/drm/xe/xe_observation.c
> index 8ec1b84cbb9e..57cf01efc07f 100644
> --- a/drivers/gpu/drm/xe/xe_observation.c
> +++ b/drivers/gpu/drm/xe/xe_observation.c
> @@ -56,7 +56,7 @@ int xe_observation_ioctl(struct drm_device *dev, void *data, struct drm_file *fi
> }
> }
>
> -static struct ctl_table observation_ctl_table[] = {
> +static const struct ctl_table observation_ctl_table[] = {
> {
> .procname = "observation_paranoid",
> .data = &xe_observation_paranoid,
> diff --git a/drivers/hv/hv_common.c b/drivers/hv/hv_common.c
> index 7a35c82976e0..9453f0c26f2a 100644
> --- a/drivers/hv/hv_common.c
> +++ b/drivers/hv/hv_common.c
> @@ -141,7 +141,7 @@ static int sysctl_record_panic_msg = 1;
> * sysctl option to allow the user to control whether kmsg data should be
> * reported to Hyper-V on panic.
> */
> -static struct ctl_table hv_ctl_table[] = {
> +static const struct ctl_table hv_ctl_table[] = {
> {
> .procname = "hyperv_record_panic_msg",
> .data = &sysctl_record_panic_msg,
> diff --git a/drivers/macintosh/mac_hid.c b/drivers/macintosh/mac_hid.c
> index b461b1bed25b..369d72f59b3c 100644
> --- a/drivers/macintosh/mac_hid.c
> +++ b/drivers/macintosh/mac_hid.c
> @@ -215,7 +215,7 @@ static int mac_hid_toggle_emumouse(const struct ctl_table *table, int write,
> }
>
> /* file(s) in /proc/sys/dev/mac_hid */
> -static struct ctl_table mac_hid_files[] = {
> +static const struct ctl_table mac_hid_files[] = {
> {
> .procname = "mouse_button_emulation",
> .data = &mouse_emulate_buttons,
> diff --git a/drivers/md/md.c b/drivers/md/md.c
> index aebe12b0ee27..0e06f9027d81 100644
> --- a/drivers/md/md.c
> +++ b/drivers/md/md.c
> @@ -294,7 +294,7 @@ void mddev_destroy_serial_pool(struct mddev *mddev, struct md_rdev *rdev)
>
> static struct ctl_table_header *raid_table_header;
>
> -static struct ctl_table raid_table[] = {
> +static const struct ctl_table raid_table[] = {
> {
> .procname = "speed_limit_min",
> .data = &sysctl_speed_limit_min,
> diff --git a/drivers/misc/sgi-xp/xpc_main.c b/drivers/misc/sgi-xp/xpc_main.c
> index 61b66e318488..7a3c34306de9 100644
> --- a/drivers/misc/sgi-xp/xpc_main.c
> +++ b/drivers/misc/sgi-xp/xpc_main.c
> @@ -93,7 +93,7 @@ int xpc_disengage_timelimit = XPC_DISENGAGE_DEFAULT_TIMELIMIT;
> static int xpc_disengage_min_timelimit; /* = 0 */
> static int xpc_disengage_max_timelimit = 120;
>
> -static struct ctl_table xpc_sys_xpc_hb[] = {
> +static const struct ctl_table xpc_sys_xpc_hb[] = {
> {
> .procname = "hb_interval",
> .data = &xpc_hb_interval,
> @@ -111,7 +111,7 @@ static struct ctl_table xpc_sys_xpc_hb[] = {
> .extra1 = &xpc_hb_check_min_interval,
> .extra2 = &xpc_hb_check_max_interval},
> };
> -static struct ctl_table xpc_sys_xpc[] = {
> +static const struct ctl_table xpc_sys_xpc[] = {
> {
> .procname = "disengage_timelimit",
> .data = &xpc_disengage_timelimit,
> diff --git a/drivers/perf/arm_pmuv3.c b/drivers/perf/arm_pmuv3.c
> index b5cc11abc962..0e360feb3432 100644
> --- a/drivers/perf/arm_pmuv3.c
> +++ b/drivers/perf/arm_pmuv3.c
> @@ -1279,7 +1279,7 @@ static int armv8pmu_proc_user_access_handler(const struct ctl_table *table, int
> return 0;
> }
>
> -static struct ctl_table armv8_pmu_sysctl_table[] = {
> +static const struct ctl_table armv8_pmu_sysctl_table[] = {
> {
> .procname = "perf_user_access",
> .data = &sysctl_perf_user_access,
> diff --git a/drivers/perf/riscv_pmu_sbi.c b/drivers/perf/riscv_pmu_sbi.c
> index 1aa303f76cc7..ea96c0a88f73 100644
> --- a/drivers/perf/riscv_pmu_sbi.c
> +++ b/drivers/perf/riscv_pmu_sbi.c
> @@ -1315,7 +1315,7 @@ static int riscv_pmu_proc_user_access_handler(const struct ctl_table *table,
> return 0;
> }
>
> -static struct ctl_table sbi_pmu_sysctl_table[] = {
> +static const struct ctl_table sbi_pmu_sysctl_table[] = {
> {
> .procname = "perf_user_access",
> .data = &sysctl_perf_user_access,
> diff --git a/drivers/scsi/scsi_sysctl.c b/drivers/scsi/scsi_sysctl.c
> index 093774d77534..be4aef0f4f99 100644
> --- a/drivers/scsi/scsi_sysctl.c
> +++ b/drivers/scsi/scsi_sysctl.c
> @@ -12,7 +12,7 @@
> #include "scsi_priv.h"
>
>
> -static struct ctl_table scsi_table[] = {
> +static const struct ctl_table scsi_table[] = {
> { .procname = "logging_level",
> .data = &scsi_logging_level,
> .maxlen = sizeof(scsi_logging_level),
> diff --git a/drivers/scsi/sg.c b/drivers/scsi/sg.c
> index 94127868bedf..effb7e768165 100644
> --- a/drivers/scsi/sg.c
> +++ b/drivers/scsi/sg.c
> @@ -1639,7 +1639,7 @@ MODULE_PARM_DESC(allow_dio, "allow direct I/O (default: 0 (disallow))");
> #ifdef CONFIG_SYSCTL
> #include <linux/sysctl.h>
>
> -static struct ctl_table sg_sysctls[] = {
> +static const struct ctl_table sg_sysctls[] = {
> {
> .procname = "sg-big-buff",
> .data = &sg_big_buff,
> diff --git a/drivers/tty/tty_io.c b/drivers/tty/tty_io.c
> index dcb1769c3625..0e84677712b4 100644
> --- a/drivers/tty/tty_io.c
> +++ b/drivers/tty/tty_io.c
> @@ -3618,7 +3618,7 @@ void console_sysfs_notify(void)
> sysfs_notify(&consdev->kobj, NULL, "active");
> }
>
> -static struct ctl_table tty_table[] = {
> +static const struct ctl_table tty_table[] = {
> {
> .procname = "legacy_tiocsti",
> .data = &tty_legacy_tiocsti,
> diff --git a/drivers/xen/balloon.c b/drivers/xen/balloon.c
> index 528395133b4f..163f7f1d70f1 100644
> --- a/drivers/xen/balloon.c
> +++ b/drivers/xen/balloon.c
> @@ -84,7 +84,7 @@ module_param(balloon_boot_timeout, uint, 0444);
> #ifdef CONFIG_XEN_BALLOON_MEMORY_HOTPLUG
> static int xen_hotplug_unpopulated;
>
> -static struct ctl_table balloon_table[] = {
> +static const struct ctl_table balloon_table[] = {
> {
> .procname = "hotplug_unpopulated",
> .data = &xen_hotplug_unpopulated,
> diff --git a/fs/aio.c b/fs/aio.c
> index 50671640b588..7b976b564cfc 100644
> --- a/fs/aio.c
> +++ b/fs/aio.c
> @@ -224,7 +224,7 @@ static unsigned long aio_nr; /* current system wide number of aio requests */
> static unsigned long aio_max_nr = 0x10000; /* system wide maximum number of aio requests */
> /*----end sysctl variables---*/
> #ifdef CONFIG_SYSCTL
> -static struct ctl_table aio_sysctls[] = {
> +static const struct ctl_table aio_sysctls[] = {
> {
> .procname = "aio-nr",
> .data = &aio_nr,
> diff --git a/fs/cachefiles/error_inject.c b/fs/cachefiles/error_inject.c
> index 1715d5ca2b2d..e341ade47dd8 100644
> --- a/fs/cachefiles/error_inject.c
> +++ b/fs/cachefiles/error_inject.c
> @@ -11,7 +11,7 @@
> unsigned int cachefiles_error_injection_state;
>
> static struct ctl_table_header *cachefiles_sysctl;
> -static struct ctl_table cachefiles_sysctls[] = {
> +static const struct ctl_table cachefiles_sysctls[] = {
> {
> .procname = "error_injection",
> .data = &cachefiles_error_injection_state,
> diff --git a/fs/coda/sysctl.c b/fs/coda/sysctl.c
> index 9f2d5743e2c8..0df46f09b6cc 100644
> --- a/fs/coda/sysctl.c
> +++ b/fs/coda/sysctl.c
> @@ -14,7 +14,7 @@
>
> static struct ctl_table_header *fs_table_header;
>
> -static struct ctl_table coda_table[] = {
> +static const struct ctl_table coda_table[] = {
> {
> .procname = "timeout",
> .data = &coda_timeout,
> diff --git a/fs/coredump.c b/fs/coredump.c
> index d48edb37bc35..591700e1b2ce 100644
> --- a/fs/coredump.c
> +++ b/fs/coredump.c
> @@ -995,7 +995,7 @@ static int proc_dostring_coredump(const struct ctl_table *table, int write,
> static const unsigned int core_file_note_size_min = CORE_FILE_NOTE_SIZE_DEFAULT;
> static const unsigned int core_file_note_size_max = CORE_FILE_NOTE_SIZE_MAX;
>
> -static struct ctl_table coredump_sysctls[] = {
> +static const struct ctl_table coredump_sysctls[] = {
> {
> .procname = "core_uses_pid",
> .data = &core_uses_pid,
> diff --git a/fs/dcache.c b/fs/dcache.c
> index b4d5e9e1e43d..370302d4e488 100644
> --- a/fs/dcache.c
> +++ b/fs/dcache.c
> @@ -192,7 +192,7 @@ static int proc_nr_dentry(const struct ctl_table *table, int write, void *buffer
> return proc_doulongvec_minmax(table, write, buffer, lenp, ppos);
> }
>
> -static struct ctl_table fs_dcache_sysctls[] = {
> +static const struct ctl_table fs_dcache_sysctls[] = {
> {
> .procname = "dentry-state",
> .data = &dentry_stat,
> diff --git a/fs/devpts/inode.c b/fs/devpts/inode.c
> index b20e565b9c5e..1096ff8562fa 100644
> --- a/fs/devpts/inode.c
> +++ b/fs/devpts/inode.c
> @@ -45,7 +45,7 @@ static int pty_limit_min;
> static int pty_limit_max = INT_MAX;
> static atomic_t pty_count = ATOMIC_INIT(0);
>
> -static struct ctl_table pty_table[] = {
> +static const struct ctl_table pty_table[] = {
> {
> .procname = "max",
> .maxlen = sizeof(int),
> diff --git a/fs/eventpoll.c b/fs/eventpoll.c
> index f9898e60dd8b..7c0980db77b3 100644
> --- a/fs/eventpoll.c
> +++ b/fs/eventpoll.c
> @@ -318,7 +318,7 @@ static void unlist_file(struct epitems_head *head)
> static long long_zero;
> static long long_max = LONG_MAX;
>
> -static struct ctl_table epoll_table[] = {
> +static const struct ctl_table epoll_table[] = {
> {
> .procname = "max_user_watches",
> .data = &max_user_watches,
> diff --git a/fs/exec.c b/fs/exec.c
> index 98cb7ba9983c..96229a6a4dff 100644
> --- a/fs/exec.c
> +++ b/fs/exec.c
> @@ -2142,7 +2142,7 @@ static int proc_dointvec_minmax_coredump(const struct ctl_table *table, int writ
> return error;
> }
>
> -static struct ctl_table fs_exec_sysctls[] = {
> +static const struct ctl_table fs_exec_sysctls[] = {
> {
> .procname = "suid_dumpable",
> .data = &suid_dumpable,
> diff --git a/fs/file_table.c b/fs/file_table.c
> index 976736be47cb..70ed0b3a5a0e 100644
> --- a/fs/file_table.c
> +++ b/fs/file_table.c
> @@ -106,7 +106,7 @@ static int proc_nr_files(const struct ctl_table *table, int write, void *buffer,
> return proc_doulongvec_minmax(table, write, buffer, lenp, ppos);
> }
>
> -static struct ctl_table fs_stat_sysctls[] = {
> +static const struct ctl_table fs_stat_sysctls[] = {
> {
> .procname = "file-nr",
> .data = &files_stat,
> diff --git a/fs/fuse/sysctl.c b/fs/fuse/sysctl.c
> index b272bb333005..63fb1e5bee30 100644
> --- a/fs/fuse/sysctl.c
> +++ b/fs/fuse/sysctl.c
> @@ -13,7 +13,7 @@ static struct ctl_table_header *fuse_table_header;
> /* Bound by fuse_init_out max_pages, which is a u16 */
> static unsigned int sysctl_fuse_max_pages_limit = 65535;
>
> -static struct ctl_table fuse_sysctl_table[] = {
> +static const struct ctl_table fuse_sysctl_table[] = {
> {
> .procname = "max_pages_limit",
> .data = &fuse_max_pages_limit,
> diff --git a/fs/inode.c b/fs/inode.c
> index 6b4c77268fc0..5587aabdaa5e 100644
> --- a/fs/inode.c
> +++ b/fs/inode.c
> @@ -184,7 +184,7 @@ static int proc_nr_inodes(const struct ctl_table *table, int write, void *buffer
> return proc_doulongvec_minmax(table, write, buffer, lenp, ppos);
> }
>
> -static struct ctl_table inodes_sysctls[] = {
> +static const struct ctl_table inodes_sysctls[] = {
> {
> .procname = "inode-nr",
> .data = &inodes_stat,
> diff --git a/fs/lockd/svc.c b/fs/lockd/svc.c
> index 4ec22c2f2ea3..d6cac1c89c2a 100644
> --- a/fs/lockd/svc.c
> +++ b/fs/lockd/svc.c
> @@ -419,7 +419,7 @@ EXPORT_SYMBOL_GPL(lockd_down);
> * Sysctl parameters (same as module parameters, different interface).
> */
>
> -static struct ctl_table nlm_sysctls[] = {
> +static const struct ctl_table nlm_sysctls[] = {
> {
> .procname = "nlm_grace_period",
> .data = &nlm_grace_period,
> diff --git a/fs/locks.c b/fs/locks.c
> index 25afc8d9c9d1..1619cddfa7a4 100644
> --- a/fs/locks.c
> +++ b/fs/locks.c
> @@ -97,7 +97,7 @@ static int leases_enable = 1;
> static int lease_break_time = 45;
>
> #ifdef CONFIG_SYSCTL
> -static struct ctl_table locks_sysctls[] = {
> +static const struct ctl_table locks_sysctls[] = {
> {
> .procname = "leases-enable",
> .data = &leases_enable,
> diff --git a/fs/namei.c b/fs/namei.c
> index 9d30c7aa9aa6..6a18b2ea21b7 100644
> --- a/fs/namei.c
> +++ b/fs/namei.c
> @@ -1099,7 +1099,7 @@ static int sysctl_protected_fifos __read_mostly;
> static int sysctl_protected_regular __read_mostly;
>
> #ifdef CONFIG_SYSCTL
> -static struct ctl_table namei_sysctls[] = {
> +static const struct ctl_table namei_sysctls[] = {
> {
> .procname = "protected_symlinks",
> .data = &sysctl_protected_symlinks,
> diff --git a/fs/namespace.c b/fs/namespace.c
> index 23e81c2a1e3f..3819c322244e 100644
> --- a/fs/namespace.c
> +++ b/fs/namespace.c
> @@ -5927,7 +5927,7 @@ const struct proc_ns_operations mntns_operations = {
> };
>
> #ifdef CONFIG_SYSCTL
> -static struct ctl_table fs_namespace_sysctls[] = {
> +static const struct ctl_table fs_namespace_sysctls[] = {
> {
> .procname = "mount-max",
> .data = &sysctl_mount_max,
> diff --git a/fs/nfs/nfs4sysctl.c b/fs/nfs/nfs4sysctl.c
> index 886a7c4c60b3..d1a92d8f8ba4 100644
> --- a/fs/nfs/nfs4sysctl.c
> +++ b/fs/nfs/nfs4sysctl.c
> @@ -17,7 +17,7 @@ static const int nfs_set_port_min;
> static const int nfs_set_port_max = 65535;
> static struct ctl_table_header *nfs4_callback_sysctl_table;
>
> -static struct ctl_table nfs4_cb_sysctls[] = {
> +static const struct ctl_table nfs4_cb_sysctls[] = {
> {
> .procname = "nfs_callback_tcpport",
> .data = &nfs_callback_set_tcpport,
> diff --git a/fs/nfs/sysctl.c b/fs/nfs/sysctl.c
> index e645be1a3381..f579df0e8d67 100644
> --- a/fs/nfs/sysctl.c
> +++ b/fs/nfs/sysctl.c
> @@ -14,7 +14,7 @@
>
> static struct ctl_table_header *nfs_callback_sysctl_table;
>
> -static struct ctl_table nfs_cb_sysctls[] = {
> +static const struct ctl_table nfs_cb_sysctls[] = {
> {
> .procname = "nfs_mountpoint_timeout",
> .data = &nfs_mountpoint_expiry_timeout,
For the nfs bits:
Acked-by: Anna Schumaker <ann...@or...>
> diff --git a/fs/notify/dnotify/dnotify.c b/fs/notify/dnotify/dnotify.c
> index 6004dfdfdf0f..c4cdaf5fa7ed 100644
> --- a/fs/notify/dnotify/dnotify.c
> +++ b/fs/notify/dnotify/dnotify.c
> @@ -20,7 +20,7 @@
>
> static int dir_notify_enable __read_mostly = 1;
> #ifdef CONFIG_SYSCTL
> -static struct ctl_table dnotify_sysctls[] = {
> +static const struct ctl_table dnotify_sysctls[] = {
> {
> .procname = "dir-notify-enable",
> .data = &dir_notify_enable,
> diff --git a/fs/notify/fanotify/fanotify_user.c b/fs/notify/fanotify/fanotify_user.c
> index 2d85c71717d6..004cfdae1316 100644
> --- a/fs/notify/fanotify/fanotify_user.c
> +++ b/fs/notify/fanotify/fanotify_user.c
> @@ -58,7 +58,7 @@ static int fanotify_max_queued_events __read_mostly;
> static long ft_zero = 0;
> static long ft_int_max = INT_MAX;
>
> -static struct ctl_table fanotify_table[] = {
> +static const struct ctl_table fanotify_table[] = {
> {
> .procname = "max_user_groups",
> .data = &init_user_ns.ucount_max[UCOUNT_FANOTIFY_GROUPS],
> diff --git a/fs/notify/inotify/inotify_user.c b/fs/notify/inotify/inotify_user.c
> index e0c48956608a..b372fb2c56bd 100644
> --- a/fs/notify/inotify/inotify_user.c
> +++ b/fs/notify/inotify/inotify_user.c
> @@ -58,7 +58,7 @@ struct kmem_cache *inotify_inode_mark_cachep __ro_after_init;
> static long it_zero = 0;
> static long it_int_max = INT_MAX;
>
> -static struct ctl_table inotify_table[] = {
> +static const struct ctl_table inotify_table[] = {
> {
> .procname = "max_user_instances",
> .data = &init_user_ns.ucount_max[UCOUNT_INOTIFY_INSTANCES],
> diff --git a/fs/ocfs2/stackglue.c b/fs/ocfs2/stackglue.c
> index 20aa37b67cfb..ddd761cf44c8 100644
> --- a/fs/ocfs2/stackglue.c
> +++ b/fs/ocfs2/stackglue.c
> @@ -650,7 +650,7 @@ static int ocfs2_sysfs_init(void)
> * and easier to preserve the name.
> */
>
> -static struct ctl_table ocfs2_nm_table[] = {
> +static const struct ctl_table ocfs2_nm_table[] = {
> {
> .procname = "hb_ctl_path",
> .data = ocfs2_hb_ctl_path,
> diff --git a/fs/pipe.c b/fs/pipe.c
> index 12b22c2723b7..638fb318e7be 100644
> --- a/fs/pipe.c
> +++ b/fs/pipe.c
> @@ -1477,7 +1477,7 @@ static int proc_dopipe_max_size(const struct ctl_table *table, int write,
> do_proc_dopipe_max_size_conv, NULL);
> }
>
> -static struct ctl_table fs_pipe_sysctls[] = {
> +static const struct ctl_table fs_pipe_sysctls[] = {
> {
> .procname = "pipe-max-size",
> .data = &pipe_max_size,
> diff --git a/fs/quota/dquot.c b/fs/quota/dquot.c
> index f9578918cfb2..825c5c2e0962 100644
> --- a/fs/quota/dquot.c
> +++ b/fs/quota/dquot.c
> @@ -2926,7 +2926,7 @@ static int do_proc_dqstats(const struct ctl_table *table, int write,
> return proc_doulongvec_minmax(table, write, buffer, lenp, ppos);
> }
>
> -static struct ctl_table fs_dqstats_table[] = {
> +static const struct ctl_table fs_dqstats_table[] = {
> {
> .procname = "lookups",
> .data = &dqstats.stat[DQST_LOOKUPS],
> diff --git a/fs/sysctls.c b/fs/sysctls.c
> index 8dbde9a802fa..ad429dffeb4b 100644
> --- a/fs/sysctls.c
> +++ b/fs/sysctls.c
> @@ -7,7 +7,7 @@
> #include <linux/init.h>
> #include <linux/sysctl.h>
>
> -static struct ctl_table fs_shared_sysctls[] = {
> +static const struct ctl_table fs_shared_sysctls[] = {
> {
> .procname = "overflowuid",
> .data = &fs_overflowuid,
> diff --git a/fs/userfaultfd.c b/fs/userfaultfd.c
> index 7c0bd0b55f88..97c4d71115d8 100644
> --- a/fs/userfaultfd.c
> +++ b/fs/userfaultfd.c
> @@ -36,7 +36,7 @@
> static int sysctl_unprivileged_userfaultfd __read_mostly;
>
> #ifdef CONFIG_SYSCTL
> -static struct ctl_table vm_userfaultfd_table[] = {
> +static const struct ctl_table vm_userfaultfd_table[] = {
> {
> .procname = "unprivileged_userfaultfd",
> .data = &sysctl_unprivileged_userfaultfd,
> diff --git a/fs/verity/init.c b/fs/verity/init.c
> index f440f0e61e3e..6e8d33b50240 100644
> --- a/fs/verity/init.c
> +++ b/fs/verity/init.c
> @@ -10,7 +10,7 @@
> #include <linux/ratelimit.h>
>
> #ifdef CONFIG_SYSCTL
> -static struct ctl_table fsverity_sysctl_table[] = {
> +static const struct ctl_table fsverity_sysctl_table[] = {
> #ifdef CONFIG_FS_VERITY_BUILTIN_SIGNATURES
> {
> .procname = "require_signatures",
> diff --git a/fs/xfs/xfs_sysctl.c b/fs/xfs/xfs_sysctl.c
> index c84df23b494d..751dc74a3067 100644
> --- a/fs/xfs/xfs_sysctl.c
> +++ b/fs/xfs/xfs_sysctl.c
> @@ -66,7 +66,7 @@ xfs_deprecated_dointvec_minmax(
> return proc_dointvec_minmax(ctl, write, buffer, lenp, ppos);
> }
>
> -static struct ctl_table xfs_table[] = {
> +static const struct ctl_table xfs_table[] = {
> {
> .procname = "irix_sgid_inherit",
> .data = &xfs_params.sgid_inherit.val,
> diff --git a/init/do_mounts_initrd.c b/init/do_mounts_initrd.c
> index 22c7f41ff642..903b4d573d3d 100644
> --- a/init/do_mounts_initrd.c
> +++ b/init/do_mounts_initrd.c
> @@ -21,7 +21,7 @@ phys_addr_t phys_initrd_start __initdata;
> unsigned long phys_initrd_size __initdata;
>
> #ifdef CONFIG_SYSCTL
> -static struct ctl_table kern_do_mounts_initrd_table[] = {
> +static const struct ctl_table kern_do_mounts_initrd_table[] = {
> {
> .procname = "real-root-dev",
> .data = &real_root_dev,
> diff --git a/io_uring/io_uring.c b/io_uring/io_uring.c
> index d3403c8216db..72ad31225fb3 100644
> --- a/io_uring/io_uring.c
> +++ b/io_uring/io_uring.c
> @@ -156,7 +156,7 @@ static int __read_mostly sysctl_io_uring_disabled;
> static int __read_mostly sysctl_io_uring_group = -1;
>
> #ifdef CONFIG_SYSCTL
> -static struct ctl_table kernel_io_uring_disabled_table[] = {
> +static const struct ctl_table kernel_io_uring_disabled_table[] = {
> {
> .procname = "io_uring_disabled",
> .data = &sysctl_io_uring_disabled,
> diff --git a/ipc/ipc_sysctl.c b/ipc/ipc_sysctl.c
> index 54318e0b4557..15b17e86e198 100644
> --- a/ipc/ipc_sysctl.c
> +++ b/ipc/ipc_sysctl.c
> @@ -73,7 +73,7 @@ int ipc_mni = IPCMNI;
> int ipc_mni_shift = IPCMNI_SHIFT;
> int ipc_min_cycle = RADIX_TREE_MAP_SIZE;
>
> -static struct ctl_table ipc_sysctls[] = {
> +static const struct ctl_table ipc_sysctls[] = {
> {
> .procname = "shmmax",
> .data = &init_ipc_ns.shm_ctlmax,
> diff --git a/ipc/mq_sysctl.c b/ipc/mq_sysctl.c
> index b70dc2ff22d8..0dd12e1c9f53 100644
> --- a/ipc/mq_sysctl.c
> +++ b/ipc/mq_sysctl.c
> @@ -20,7 +20,7 @@ static int msg_max_limit_max = HARD_MSGMAX;
> static int msg_maxsize_limit_min = MIN_MSGSIZEMAX;
> static int msg_maxsize_limit_max = HARD_MSGSIZEMAX;
>
> -static struct ctl_table mq_sysctls[] = {
> +static const struct ctl_table mq_sysctls[] = {
> {
> .procname = "queues_max",
> .data = &init_ipc_ns.mq_queues_max,
> diff --git a/kernel/acct.c b/kernel/acct.c
> index 179848ad33e9..31222e8cd534 100644
> --- a/kernel/acct.c
> +++ b/kernel/acct.c
> @@ -76,7 +76,7 @@ static int acct_parm[3] = {4, 2, 30};
> #define ACCT_TIMEOUT (acct_parm[2]) /* foo second timeout between checks */
>
> #ifdef CONFIG_SYSCTL
> -static struct ctl_table kern_acct_table[] = {
> +static const struct ctl_table kern_acct_table[] = {
> {
> .procname = "acct",
> .data = &acct_parm,
> diff --git a/kernel/bpf/syscall.c b/kernel/bpf/syscall.c
> index 5684e8ce132d..fbcf07f98d8b 100644
> --- a/kernel/bpf/syscall.c
> +++ b/kernel/bpf/syscall.c
> @@ -6124,7 +6124,7 @@ static int bpf_unpriv_handler(const struct ctl_table *table, int write,
> return ret;
> }
>
> -static struct ctl_table bpf_syscall_table[] = {
> +static const struct ctl_table bpf_syscall_table[] = {
> {
> .procname = "unprivileged_bpf_disabled",
> .data = &sysctl_unprivileged_bpf_disabled,
> diff --git a/kernel/delayacct.c b/kernel/delayacct.c
> index dead51de8eb5..75659ac036cd 100644
> --- a/kernel/delayacct.c
> +++ b/kernel/delayacct.c
> @@ -64,7 +64,7 @@ static int sysctl_delayacct(const struct ctl_table *table, int write, void *buff
> return err;
> }
>
> -static struct ctl_table kern_delayacct_table[] = {
> +static const struct ctl_table kern_delayacct_table[] = {
> {
> .procname = "task_delayacct",
> .data = NULL,
> diff --git a/kernel/exit.c b/kernel/exit.c
> index 1dcddfe537ee..3485e5fc499e 100644
> --- a/kernel/exit.c
> +++ b/kernel/exit.c
> @@ -85,7 +85,7 @@
> static unsigned int oops_limit = 10000;
>
> #ifdef CONFIG_SYSCTL
> -static struct ctl_table kern_exit_table[] = {
> +static const struct ctl_table kern_exit_table[] = {
> {
> .procname = "oops_limit",
> .data = &oops_limit,
> diff --git a/kernel/hung_task.c b/kernel/hung_task.c
> index c18717189f32..62a5d8927ce9 100644
> --- a/kernel/hung_task.c
> +++ b/kernel/hung_task.c
> @@ -272,7 +272,7 @@ static int proc_dohung_task_timeout_secs(const struct ctl_table *table, int writ
> * and hung_task_check_interval_secs
> */
> static const unsigned long hung_task_timeout_max = (LONG_MAX / HZ);
> -static struct ctl_table hung_task_sysctls[] = {
> +static const struct ctl_table hung_task_sysctls[] = {
> #ifdef CONFIG_SMP
> {
> .procname = "hung_task_all_cpu_backtrace",
> diff --git a/kernel/kexec_core.c b/kernel/kexec_core.c
> index c0caa14880c3..71b0809e06d6 100644
> --- a/kernel/kexec_core.c
> +++ b/kernel/kexec_core.c
> @@ -925,7 +925,7 @@ static int kexec_limit_handler(const struct ctl_table *table, int write,
> return proc_dointvec(&tmp, write, buffer, lenp, ppos);
> }
>
> -static struct ctl_table kexec_core_sysctls[] = {
> +static const struct ctl_table kexec_core_sysctls[] = {
> {
> .procname = "kexec_load_disabled",
> .data = &kexec_load_disabled,
> diff --git a/kernel/kprobes.c b/kernel/kprobes.c
> index b027a4030976..9a15fb343be8 100644
> --- a/kernel/kprobes.c
> +++ b/kernel/kprobes.c
> @@ -954,7 +954,7 @@ static int proc_kprobes_optimization_handler(const struct ctl_table *table,
> return ret;
> }
>
> -static struct ctl_table kprobe_sysctls[] = {
> +static const struct ctl_table kprobe_sysctls[] = {
> {
> .procname = "kprobes-optimization",
> .data = &sysctl_kprobes_optimization,
> diff --git a/kernel/latencytop.c b/kernel/latencytop.c
> index 7a75eab9c179..39a5fcdff9f9 100644
> --- a/kernel/latencytop.c
> +++ b/kernel/latencytop.c
> @@ -77,7 +77,7 @@ static int sysctl_latencytop(const struct ctl_table *table, int write, void *buf
> return err;
> }
>
> -static struct ctl_table latencytop_sysctl[] = {
> +static const struct ctl_table latencytop_sysctl[] = {
> {
> .procname = "latencytop",
> .data = &latencytop_enabled,
> diff --git a/kernel/locking/lockdep.c b/kernel/locking/lockdep.c
> index 2d8ec0351ef9..926b796ba71a 100644
> --- a/kernel/locking/lockdep.c
> +++ b/kernel/locking/lockdep.c
> @@ -79,7 +79,7 @@ module_param(lock_stat, int, 0644);
> #endif
>
> #ifdef CONFIG_SYSCTL
> -static struct ctl_table kern_lockdep_table[] = {
> +static const struct ctl_table kern_lockdep_table[] = {
> #ifdef CONFIG_PROVE_LOCKING
> {
> .procname = "prove_locking",
> diff --git a/kernel/panic.c b/kernel/panic.c
> index fbc59b3b64d0..d8635d5cecb2 100644
> --- a/kernel/panic.c
> +++ b/kernel/panic.c
> @@ -84,7 +84,7 @@ ATOMIC_NOTIFIER_HEAD(panic_notifier_list);
> EXPORT_SYMBOL(panic_notifier_list);
>
> #ifdef CONFIG_SYSCTL
> -static struct ctl_table kern_panic_table[] = {
> +static const struct ctl_table kern_panic_table[] = {
> #ifdef CONFIG_SMP
> {
> .procname = "oops_all_cpu_backtrace",
> diff --git a/kernel/pid_namespace.c b/kernel/pid_namespace.c
> index d70ab49d5b4a..0f23285be4f9 100644
> --- a/kernel/pid_namespace.c
> +++ b/kernel/pid_namespace.c
> @@ -282,7 +282,7 @@ static int pid_ns_ctl_handler(const struct ctl_table *table, int write,
> }
>
> extern int pid_max;
> -static struct ctl_table pid_ns_ctl_table[] = {
> +static const struct ctl_table pid_ns_ctl_table[] = {
> {
> .procname = "ns_last_pid",
> .maxlen = sizeof(int),
> diff --git a/kernel/pid_sysctl.h b/kernel/pid_sysctl.h
> index 18ecaef6be41..5d8f981de7c5 100644
> --- a/kernel/pid_sysctl.h
> +++ b/kernel/pid_sysctl.h
> @@ -31,7 +31,7 @@ static int pid_mfd_noexec_dointvec_minmax(const struct ctl_table *table,
> return err;
> }
>
> -static struct ctl_table pid_ns_ctl_table_vm[] = {
> +static const struct ctl_table pid_ns_ctl_table_vm[] = {
> {
> .procname = "memfd_noexec",
> .data = &init_pid_ns.memfd_noexec_scope,
> diff --git a/kernel/printk/sysctl.c b/kernel/printk/sysctl.c
> index f5072dc85f7a..da77f3f5c1fe 100644
> --- a/kernel/printk/sysctl.c
> +++ b/kernel/printk/sysctl.c
> @@ -20,7 +20,7 @@ static int proc_dointvec_minmax_sysadmin(const struct ctl_table *table, int writ
> return proc_dointvec_minmax(table, write, buffer, lenp, ppos);
> }
>
> -static struct ctl_table printk_sysctls[] = {
> +static const struct ctl_table printk_sysctls[] = {
> {
> .procname = "printk",
> .data = &console_loglevel,
> diff --git a/kernel/reboot.c b/kernel/reboot.c
> index a701000bab34..b5a8569e5d81 100644
> --- a/kernel/reboot.c
> +++ b/kernel/reboot.c
> @@ -1287,7 +1287,7 @@ static struct attribute *reboot_attrs[] = {
> };
>
> #ifdef CONFIG_SYSCTL
> -static struct ctl_table kern_reboot_table[] = {
> +static const struct ctl_table kern_reboot_table[] = {
> {
> .procname = "poweroff_cmd",
> .data = &poweroff_cmd,
> diff --git a/kernel/sched/autogroup.c b/kernel/sched/autogroup.c
> index db68a964e34e..83d46b9b8ec8 100644
> --- a/kernel/sched/autogroup.c
> +++ b/kernel/sched/autogroup.c
> @@ -9,7 +9,7 @@ static struct autogroup autogroup_default;
> static atomic_t autogroup_seq_nr;
>
> #ifdef CONFIG_SYSCTL
> -static struct ctl_table sched_autogroup_sysctls[] = {
> +static const struct ctl_table sched_autogroup_sysctls[] = {
> {
> .procname = "sched_autogroup_enabled",
> .data = &sysctl_sched_autogroup_enabled,
> diff --git a/kernel/sched/core.c b/kernel/sched/core.c
> index 3e5a6bf587f9..00fea6f32ae5 100644
> --- a/kernel/sched/core.c
> +++ b/kernel/sched/core.c
> @@ -4646,7 +4646,7 @@ static int sysctl_schedstats(const struct ctl_table *table, int write, void *buf
> #endif /* CONFIG_SCHEDSTATS */
>
> #ifdef CONFIG_SYSCTL
> -static struct ctl_table sched_core_sysctls[] = {
> +static const struct ctl_table sched_core_sysctls[] = {
> #ifdef CONFIG_SCHEDSTATS
> {
> .procname = "sched_schedstats",
> diff --git a/kernel/sched/deadline.c b/kernel/sched/deadline.c
> index d94f2ed6d1f4..dab4887d6406 100644
> --- a/kernel/sched/deadline.c
> +++ b/kernel/sched/deadline.c
> @@ -26,7 +26,7 @@
> static unsigned int sysctl_sched_dl_period_max = 1 << 22; /* ~4 seconds */
> static unsigned int sysctl_sched_dl_period_min = 100; /* 100 us */
> #ifdef CONFIG_SYSCTL
> -static struct ctl_table sched_dl_sysctls[] = {
> +static const struct ctl_table sched_dl_sysctls[] = {
> {
> .procname = "sched_deadline_period_max_us",
> .data = &sysctl_sched_dl_period_max,
> diff --git a/kernel/sched/fair.c b/kernel/sched/fair.c
> index 3e9ca38512de..1692dbb67d7a 100644
> --- a/kernel/sched/fair.c
> +++ b/kernel/sched/fair.c
> @@ -130,7 +130,7 @@ static unsigned int sysctl_numa_balancing_promote_rate_limit = 65536;
> #endif
>
> #ifdef CONFIG_SYSCTL
> -static struct ctl_table sched_fair_sysctls[] = {
> +static const struct ctl_table sched_fair_sysctls[] = {
> #ifdef CONFIG_CFS_BANDWIDTH
> {
> .procname = "sched_cfs_bandwidth_slice_us",
> diff --git a/kernel/sched/rt.c b/kernel/sched/rt.c
> index bd66a46b06ac..4b8e33c615b1 100644
> --- a/kernel/sched/rt.c
> +++ b/kernel/sched/rt.c
> @@ -26,7 +26,7 @@ static int sched_rt_handler(const struct ctl_table *table, int write, void *buff
> size_t *lenp, loff_t *ppos);
> static int sched_rr_handler(const struct ctl_table *table, int write, void *buffer,
> size_t *lenp, loff_t *ppos);
> -static struct ctl_table sched_rt_sysctls[] = {
> +static const struct ctl_table sched_rt_sysctls[] = {
> {
> .procname = "sched_rt_period_us",
> .data = &sysctl_sched_rt_period,
> diff --git a/kernel/sched/topology.c b/kernel/sched/topology.c
> index 9748a4c8d668..20d59b0bc928 100644
> --- a/kernel/sched/topology.c
> +++ b/kernel/sched/topology.c
> @@ -312,7 +312,7 @@ static int sched_energy_aware_handler(const struct ctl_table *table, int write,
> return ret;
> }
>
> -static struct ctl_table sched_energy_aware_sysctls[] = {
> +static const struct ctl_table sched_energy_aware_sysctls[] = {
> {
> .procname = "sched_energy_aware",
> .data = &sysctl_sched_energy_aware,
> diff --git a/kernel/seccomp.c b/kernel/seccomp.c
> index 385d48293a5f..f59381c4a2ff 100644
> --- a/kernel/seccomp.c
> +++ b/kernel/seccomp.c
> @@ -2450,7 +2450,7 @@ static int seccomp_actions_logged_handler(const struct ctl_table *ro_table, int
> return ret;
> }
>
> -static struct ctl_table seccomp_sysctl_table[] = {
> +static const struct ctl_table seccomp_sysctl_table[] = {
> {
> .procname = "actions_avail",
> .data = (void *) &seccomp_actions_avail,
> diff --git a/kernel/signal.c b/kernel/signal.c
> index 989b1cc9116a..77f32c2d6ccb 100644
> --- a/kernel/signal.c
> +++ b/kernel/signal.c
> @@ -4931,7 +4931,7 @@ static inline void siginfo_buildtime_checks(void)
> }
>
> #if defined(CONFIG_SYSCTL)
> -static struct ctl_table signal_debug_table[] = {
> +static const struct ctl_table signal_debug_table[] = {
> #ifdef CONFIG_SYSCTL_EXCEPTION_TRACE
> {
> .procname = "exception-trace",
> diff --git a/kernel/stackleak.c b/kernel/stackleak.c
> index 39fd620a7db6..c1bfc14cd36e 100644
> --- a/kernel/stackleak.c
> +++ b/kernel/stackleak.c
> @@ -44,7 +44,7 @@ static int stack_erasing_sysctl(const struct ctl_table *table, int write,
> state ? "enabled" : "disabled");
> return ret;
> }
> -static struct ctl_table stackleak_sysctls[] = {
> +static const struct ctl_table stackleak_sysctls[] = {
> {
> .procname = "stack_erasing",
> .data = NULL,
> diff --git a/kernel/sysctl-test.c b/kernel/sysctl-test.c
> index 3ac98bb7fb82..eb2842bd0557 100644
> --- a/kernel/sysctl-test.c
> +++ b/kernel/sysctl-test.c
> @@ -374,7 +374,7 @@ static void sysctl_test_register_sysctl_sz_invalid_extra_value(
> struct kunit *test)
> {
> unsigned char data = 0;
> - struct ctl_table table_foo[] = {
> + const struct ctl_table table_foo[] = {
> {
> .procname = "foo",
> .data = &data,
> @@ -386,7 +386,7 @@ static void sysctl_test_register_sysctl_sz_invalid_extra_value(
> },
> };
>
> - struct ctl_table table_bar[] = {
> + const struct ctl_table table_bar[] = {
> {
> .procname = "bar",
> .data = &data,
> @@ -398,7 +398,7 @@ static void sysctl_test_register_sysctl_sz_invalid_extra_value(
> },
> };
>
> - struct ctl_table table_qux[] = {
> + const struct ctl_table table_qux[] = {
> {
> .procname = "qux",
> .data = &data,
> diff --git a/kernel/sysctl.c b/kernel/sysctl.c
> index 5c9202cb8f59..3a0132cb0d5d 100644
> --- a/kernel/sysctl.c
> +++ b/kernel/sysctl.c
> @@ -1609,7 +1609,7 @@ int proc_do_static_key(const struct ctl_table *table, int write,
> return ret;
> }
>
> -static struct ctl_table kern_table[] = {
> +static const struct ctl_table kern_table[] = {
> {
> .procname = "panic",
> .data = &panic_timeout,
> @@ -2030,7 +2030,7 @@ static struct ctl_table kern_table[] = {
> #endif
> };
>
> -static struct ctl_table vm_table[] = {
> +static const struct ctl_table vm_table[] = {
> {
> .procname = "overcommit_memory",
> .data = &sysctl_overcommit_memory,
> diff --git a/kernel/time/timer.c b/kernel/time/timer.c
> index a5860bf6d16f..79a1f83d2944 100644
> --- a/kernel/time/timer.c
> +++ b/kernel/time/timer.c
> @@ -301,7 +301,7 @@ static int timer_migration_handler(const struct ctl_table *table, int write,
> return ret;
> }
>
> -static struct ctl_table timer_sysctl[] = {
> +static const struct ctl_table timer_sysctl[] = {
> {
> .procname = "timer_migration",
> .data = &sysctl_timer_migration,
> diff --git a/kernel/trace/ftrace.c b/kernel/trace/ftrace.c
> index 2e113f8b13a2..489cbab3d64c 100644
> --- a/kernel/trace/ftrace.c
> +++ b/kernel/trace/ftrace.c
> @@ -8786,7 +8786,7 @@ ftrace_enable_sysctl(const struct ctl_table *table, int write,
> return ret;
> }
>
> -static struct ctl_table ftrace_sysctls[] = {
> +static const struct ctl_table ftrace_sysctls[] = {
> {
> .procname = "ftrace_enabled",
> .data = &ftrace_enabled,
> diff --git a/kernel/trace/trace_events_user.c b/kernel/trace/trace_events_user.c
> index 17bcad8f79de..97325fbd6283 100644
> --- a/kernel/trace/trace_events_user.c
> +++ b/kernel/trace/trace_events_user.c
> @@ -2899,7 +2899,7 @@ static int set_max_user_events_sysctl(const struct ctl_table *table, int write,
> return ret;
> }
>
> -static struct ctl_table user_event_sysctls[] = {
> +static const struct ctl_table user_event_sysctls[] = {
> {
> .procname = "user_events_max",
> .data = &max_user_events,
> diff --git a/kernel/umh.c b/kernel/umh.c
> index be9234270777..b4da45a3a7cf 100644
> --- a/kernel/umh.c
> +++ b/kernel/umh.c
> @@ -544,7 +544,7 @@ static int proc_cap_handler(const struct ctl_table *table, int write,
> return 0;
> }
>
> -static struct ctl_table usermodehelper_table[] = {
> +static const struct ctl_table usermodehelper_table[] = {
> {
> .procname = "bset",
> .data = &usermodehelper_bset,
> diff --git a/kernel/utsname_sysctl.c b/kernel/utsname_sysctl.c
> index 7282f61a8650..bfbaaecb1dd4 100644
> --- a/kernel/utsname_sysctl.c
> +++ b/kernel/utsname_sysctl.c
> @@ -75,7 +75,7 @@ static DEFINE_CTL_TABLE_POLL(hostname_poll);
> static DEFINE_CTL_TABLE_POLL(domainname_poll);
>
> // Note: update 'enum uts_proc' to match any changes to this table
> -static struct ctl_table uts_kern_table[] = {
> +static const struct ctl_table uts_kern_table[] = {
> {
> .procname = "arch",
> .data = init_uts_ns.name.machine,
> @@ -129,7 +129,7 @@ static struct ctl_table uts_kern_table[] = {
> */
> void uts_proc_notify(enum uts_proc proc)
> {
> - struct ctl_table *table = &uts_kern_table[proc];
> + const struct ctl_table *table = &uts_kern_table[proc];
>
> proc_sys_poll_notify(table->poll);
> }
> diff --git a/kernel/watchdog.c b/kernel/watchdog.c
> index 41e0f7e9fa35..613e73ef367c 100644
> --- a/kernel/watchdog.c
> +++ b/kernel/watchdog.c
> @@ -1094,7 +1094,7 @@ static int proc_watchdog_cpumask(const struct ctl_table *table, int write,
>
> static const int sixty = 60;
>
> -static struct ctl_table watchdog_sysctls[] = {
> +static const struct ctl_table watchdog_sysctls[] = {
> {
> .procname = "watchdog",
> .data = &watchdog_user_enabled,
> diff --git a/lib/test_sysctl.c b/lib/test_sysctl.c
> index b6696fa1d426..4249e0cc8aaf 100644
> --- a/lib/test_sysctl.c
> +++ b/lib/test_sysctl.c
> @@ -71,7 +71,7 @@ static struct test_sysctl_data test_data = {
> };
>
> /* These are all under /proc/sys/debug/test_sysctl/ */
> -static struct ctl_table test_table[] = {
> +static const struct ctl_table test_table[] = {
> {
> .procname = "int_0001",
> .data = &test_data.int_0001,
> @@ -177,7 +177,7 @@ static int test_sysctl_setup_node_tests(void)
> }
>
> /* Used to test that unregister actually removes the directory */
> -static struct ctl_table test_table_unregister[] = {
> +static const struct ctl_table test_table_unregister[] = {
> {
> .procname = "unregister_error",
> .data = &test_data.int_0001,
> @@ -220,7 +220,7 @@ static int test_sysctl_run_register_mount_point(void)
> return 0;
> }
>
> -static struct ctl_table test_table_empty[] = { };
> +static const struct ctl_table test_table_empty[] = { };
>
> static int test_sysctl_run_register_empty(void)
> {
> diff --git a/mm/compaction.c b/mm/compaction.c
> index a2b16b08cbbf..62e8ee230e1c 100644
> --- a/mm/compaction.c
> +++ b/mm/compaction.c
> @@ -3297,7 +3297,7 @@ static int proc_dointvec_minmax_warn_RT_change(const struct ctl_table *table,
> return ret;
> }
>
> -static struct ctl_table vm_compaction[] = {
> +static const struct ctl_table vm_compaction[] = {
> {
> .procname = "compact_memory",
> .data = &sysctl_compact_memory,
> diff --git a/mm/hugetlb.c b/mm/hugetlb.c
> index c498874a7170..3857b9d72c84 100644
> --- a/mm/hugetlb.c
> +++ b/mm/hugetlb.c
> @@ -4845,7 +4845,7 @@ static int hugetlb_overcommit_handler(const struct ctl_table *table, int write,
> return ret;
> }
>
> -static struct ctl_table hugetlb_table[] = {
> +static const struct ctl_table hugetlb_table[] = {
> {
> .procname = "nr_hugepages",
> .data = NULL,
> diff --git a/mm/hugetlb_vmemmap.c b/mm/hugetlb_vmemmap.c
> index 57b7f591eee8..7735972add01 100644
> --- a/mm/hugetlb_vmemmap.c
> +++ b/mm/hugetlb_vmemmap.c
> @@ -693,7 +693,7 @@ void hugetlb_vmemmap_optimize_folios(struct hstate *h, struct list_head *folio_l
> free_vmemmap_page_list(&vmemmap_pages);
> }
>
> -static struct ctl_table hugetlb_vmemmap_sysctls[] = {
> +static const struct ctl_table hugetlb_vmemmap_sysctls[] = {
> {
> .procname = "hugetlb_optimize_vmemmap",
> ...
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