From patchwork Fri Mar 15 20:47:58 2024 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-Patchwork-Submitter: =?utf-8?q?Thomas_Wei=C3=9Fschuh?= X-Patchwork-Id: 13593975 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from kanga.kvack.org (kanga.kvack.org [205.233.56.17]) by smtp.lore.kernel.org (Postfix) with ESMTP id 9AAE5C54E67 for ; Fri, 15 Mar 2024 20:48:22 +0000 (UTC) Received: by kanga.kvack.org (Postfix) id 0D74280141; Fri, 15 Mar 2024 16:48:22 -0400 (EDT) Received: by kanga.kvack.org (Postfix, from userid 40) id 088C9800B4; Fri, 15 Mar 2024 16:48:22 -0400 (EDT) X-Delivered-To: int-list-linux-mm@kvack.org Received: by kanga.kvack.org (Postfix, from userid 63042) id E441F80141; Fri, 15 Mar 2024 16:48:21 -0400 (EDT) X-Delivered-To: linux-mm@kvack.org Received: from relay.hostedemail.com (smtprelay0011.hostedemail.com [216.40.44.11]) by kanga.kvack.org (Postfix) with ESMTP id D4F99800B4 for ; Fri, 15 Mar 2024 16:48:21 -0400 (EDT) Received: from smtpin22.hostedemail.com (a10.router.float.18 [10.200.18.1]) by unirelay02.hostedemail.com (Postfix) with ESMTP id 79EF11205E8 for ; Fri, 15 Mar 2024 20:48:21 +0000 (UTC) X-FDA: 81900461202.22.7CBCC87 Received: from todd.t-8ch.de (todd.t-8ch.de [159.69.126.157]) by imf24.hostedemail.com (Postfix) with ESMTP id 0E0F218001B for ; Fri, 15 Mar 2024 20:48:18 +0000 (UTC) Authentication-Results: imf24.hostedemail.com; dkim=pass header.d=weissschuh.net header.s=mail header.b=qNDlogzy; spf=pass (imf24.hostedemail.com: domain of linux@weissschuh.net designates 159.69.126.157 as permitted sender) smtp.mailfrom=linux@weissschuh.net; dmarc=none ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=hostedemail.com; s=arc-20220608; t=1710535699; h=from:from:sender:reply-to:subject:subject:date:date: message-id:message-id:to:to:cc:cc:mime-version:mime-version: content-type:content-type: content-transfer-encoding:content-transfer-encoding:in-reply-to: references:dkim-signature; bh=xUkqMLNtbfgDxkjlKqW8MVUDqWPf6MS2X14zqR66kqg=; b=8rWyPEzSmd1G0B3gzchskPLUVLwYuVyBaHAFu1mDpPGp1BEetph19LXI/jWIFKFRFDq+pj OU6ZUpCxSEFxXDkGFYid2Jlf6hzWvWgSshWNALPq2OVXp9GZ0H88W3RkurEKqvHeH4zxJS WKNkoQTdpLfaouFB/Obj2bILONxCsrk= ARC-Authentication-Results: i=1; imf24.hostedemail.com; dkim=pass header.d=weissschuh.net header.s=mail header.b=qNDlogzy; spf=pass (imf24.hostedemail.com: domain of linux@weissschuh.net designates 159.69.126.157 as permitted sender) smtp.mailfrom=linux@weissschuh.net; dmarc=none ARC-Seal: i=1; s=arc-20220608; d=hostedemail.com; t=1710535699; a=rsa-sha256; cv=none; b=J4yZEJNxhsewjbcoNXCrx/9qI6DENDTfAHLZGPFPUFdqw5e5jia8PZ01qMbaKSAgGNA5C1 c5XkOzAvbvMrcWaqQGQDitxKSDmntn8S3v/qq4T2+ILdu1yB+Vs0yLj3yLT3uSejyOwvcC nK5be1yafRRBNnbT6kJlbvv3pspzqdM= DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=weissschuh.net; s=mail; t=1710535696; bh=UQpx8/b/XTKLmVj1eXwhJn/1lYtutU5drdFjuhtFc8Q=; h=From:Subject:Date:To:Cc:From; b=qNDlogzyuL5NF8OjRV46+rDUbxyIMtOYZlFLSwLbviicTyfpUQvpFjMhavWRGxMPb +KLyaJldvQaCaK8bZDu2BzGm/LykYpsCaxYcWdiFuplr9priximfT/xu1KNJzE8mNQ QUnnlq6A+2zF05g+yrdBYpLqYgXYSWY/mpzB+Yw8= From: =?utf-8?q?Thomas_Wei=C3=9Fschuh?= Subject: [PATCH 00/11] sysctl: treewide: constify ctl_table argument of sysctl handlers Date: Fri, 15 Mar 2024 21:47:58 +0100 Message-Id: <20240315-sysctl-const-handler-v1-0-1322ac7cb03d@weissschuh.net> MIME-Version: 1.0 X-B4-Tracking: v=1; b=H4sIAP+z9GUC/x2MQQqAIBAAvxJ7bqGUSvpKdFDbakEs3Igi+nvSc WBmHhBKTAJ98UCik4W3mKEuC/CrjQshT5lBVUrXSrUot/gjoN+iHJiNKVBCY7RryNmOTAU53RP NfP3bYXzfDzWhXLJmAAAA To: Greg Kroah-Hartman , Kees Cook , Alexei Starovoitov , Daniel Borkmann , John Fastabend , Andrii Nakryiko , Martin KaFai Lau , Eduard Zingerman , Song Liu , Yonghong Song , KP Singh , Stanislav Fomichev , Hao Luo , Jiri Olsa , Muchun Song , Andrew Morton , "David S. 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IxzNVFvPoYVg5/qub4SllEQ54318MEpFQMNCcWujoCzE1Y8VhU2/pWXtHem4pSbF0LRbLq1hEx5NC0mrt/rKCq9QA+OyP0qhnMUmLY+boPa4IRmt/mXXoWX4rOZAD8aRMR/wlw6R5Kr5gySYhwoB0yg6w72xp42oF3P97qC1HmbxiAdTYStRUCD8Dz7oBh6XsdQdVTnL7Xcut+cFh5AwajtWQ6XaVko5Hui/m96Vce6hJTjfTTzT0G710XknfazDmnua8iJYNLpRNZjJmSABwqVF6reiY7bz0m1F7wO/kfLxGJAC/SmA2Z/NoQ5HjDwL1B/kYLSAx3V3XnXON/cYOkRBWL87krtdTj6H9B5xpyQxSl4OnkQ3NWymAmnLf7vqQrMlbwiuhczg== X-Bogosity: Ham, tests=bogofilter, spamicity=0.000000, version=1.2.4 Sender: owner-linux-mm@kvack.org Precedence: bulk X-Loop: owner-majordomo@kvack.org List-ID: List-Subscribe: List-Unsubscribe: * 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@weissschuh.net/ Signed-off-by: Thomas Weißschuh --- 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,