* Patch 1 is a bugfix for the stack_erasing sysctl handler * Patches 2-10 change various helper functions throughout the kernel to be able to handle 'const ctl_table'. * Patch 11 changes the signatures of all proc handlers through the tree. Some other signatures are also adapted, for details see the commit message. Only patch 1 changes any code at all. The series was compile-tested on top of next-20230315 for i386, x86_64, arm, arm64, riscv, loongarch and s390. This series was split from my larger series sysctl-const series [0]. It only focusses on the proc_handlers but is an important step to be able to move all static definitions of ctl_table into .rodata. [0] https://lore.kernel.org/lkml/20231204-const-sysctl-v2-0-7a5060b11447@xxxxxxxxxxxxxx/ Signed-off-by: Thomas Weißschuh <linux@xxxxxxxxxxxxxx> --- Thomas Weißschuh (11): stackleak: don't modify ctl_table argument cgroup: bpf: constify ctl_table arguments and fields hugetlb: constify ctl_table arguments of utility functions utsname: constify ctl_table arguments of utility function neighbour: constify ctl_table arguments of utility function ipv4/sysctl: constify ctl_table arguments of utility functions ipv6/addrconf: constify ctl_table arguments of utility functions ipv6/ndisc: constify ctl_table arguments of utility function ipvs: constify ctl_table arguments of utility functions sysctl: constify ctl_table arguments of utility function sysctl: treewide: constify the ctl_table argument of handlers arch/arm64/kernel/armv8_deprecated.c | 2 +- arch/arm64/kernel/fpsimd.c | 2 +- arch/s390/appldata/appldata_base.c | 10 +-- arch/s390/kernel/debug.c | 2 +- arch/s390/kernel/topology.c | 2 +- arch/s390/mm/cmm.c | 6 +- arch/x86/kernel/itmt.c | 2 +- drivers/cdrom/cdrom.c | 6 +- drivers/char/random.c | 5 +- drivers/macintosh/mac_hid.c | 2 +- drivers/net/vrf.c | 2 +- drivers/parport/procfs.c | 14 ++-- drivers/perf/arm_pmuv3.c | 6 +- drivers/perf/riscv_pmu_sbi.c | 2 +- fs/coredump.c | 4 +- fs/dcache.c | 3 +- fs/drop_caches.c | 4 +- fs/exec.c | 6 +- fs/file_table.c | 3 +- fs/fs-writeback.c | 2 +- fs/inode.c | 3 +- fs/pipe.c | 2 +- fs/quota/dquot.c | 4 +- fs/xfs/xfs_sysctl.c | 33 ++++----- include/linux/filter.h | 2 +- include/linux/ftrace.h | 4 +- include/linux/mm.h | 8 +-- include/linux/perf_event.h | 6 +- include/linux/security.h | 2 +- include/linux/sysctl.h | 36 +++++----- include/linux/vmstat.h | 6 +- include/linux/writeback.h | 2 +- include/net/ndisc.h | 2 +- include/net/neighbour.h | 6 +- include/net/netfilter/nf_hooks_lwtunnel.h | 2 +- ipc/ipc_sysctl.c | 14 ++-- kernel/bpf/syscall.c | 4 +- kernel/delayacct.c | 5 +- kernel/events/callchain.c | 2 +- kernel/events/core.c | 9 ++- kernel/fork.c | 2 +- kernel/hung_task.c | 7 +- kernel/kexec_core.c | 2 +- kernel/kprobes.c | 2 +- kernel/latencytop.c | 5 +- kernel/pid_namespace.c | 4 +- kernel/pid_sysctl.h | 2 +- kernel/printk/internal.h | 2 +- kernel/printk/printk.c | 2 +- kernel/printk/sysctl.c | 6 +- kernel/sched/core.c | 15 ++-- kernel/sched/rt.c | 20 +++--- kernel/sched/topology.c | 6 +- kernel/seccomp.c | 7 +- kernel/stackleak.c | 12 ++-- kernel/sysctl.c | 109 ++++++++++++++++-------------- kernel/time/timer.c | 4 +- kernel/trace/ftrace.c | 2 +- kernel/trace/trace.c | 2 +- kernel/trace/trace_events_user.c | 3 +- kernel/trace/trace_stack.c | 2 +- kernel/umh.c | 4 +- kernel/utsname_sysctl.c | 6 +- kernel/watchdog.c | 15 ++-- mm/compaction.c | 17 +++-- mm/hugetlb.c | 20 +++--- mm/page-writeback.c | 27 +++++--- mm/page_alloc.c | 43 ++++++++---- mm/util.c | 15 ++-- mm/vmstat.c | 6 +- net/bridge/br_netfilter_hooks.c | 2 +- net/core/neighbour.c | 26 ++++--- net/core/sysctl_net_core.c | 24 ++++--- net/ipv4/devinet.c | 6 +- net/ipv4/route.c | 4 +- net/ipv4/sysctl_net_ipv4.c | 40 ++++++----- net/ipv6/addrconf.c | 38 ++++++----- net/ipv6/ndisc.c | 7 +- net/ipv6/route.c | 4 +- net/ipv6/sysctl_net_ipv6.c | 6 +- net/mpls/af_mpls.c | 4 +- net/netfilter/ipvs/ip_vs_ctl.c | 19 +++--- net/netfilter/nf_conntrack_standalone.c | 2 +- net/netfilter/nf_hooks_lwtunnel.c | 2 +- net/netfilter/nf_log.c | 4 +- net/phonet/sysctl.c | 2 +- net/rds/tcp.c | 4 +- net/sctp/sysctl.c | 30 ++++---- net/sunrpc/sysctl.c | 5 +- net/sunrpc/xprtrdma/svc_rdma.c | 2 +- security/apparmor/lsm.c | 2 +- security/min_addr.c | 2 +- security/yama/yama_lsm.c | 2 +- 93 files changed, 467 insertions(+), 376 deletions(-) --- base-commit: a1e7655b77e3391b58ac28256789ea45b1685abb change-id: 20231226-sysctl-const-handler-883b5eba7e80 Best regards, -- Thomas Weißschuh <linux@xxxxxxxxxxxxxx>
