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[2620:137:e000::3:4]) by mx.google.com with ESMTPS id 13-20020a056a00072d00b006ce5bfe2fe0si398216pfm.142.2023.12.03.23.53.52 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Sun, 03 Dec 2023 23:53:53 -0800 (PST) Received-SPF: pass (google.com: domain of linux-kernel-owner@vger.kernel.org designates 2620:137:e000::3:4 as permitted sender) client-ip=2620:137:e000::3:4; Authentication-Results: mx.google.com; dkim=pass header.i=@weissschuh.net header.s=mail header.b=Ha4O5LQv; spf=pass (google.com: domain of linux-kernel-owner@vger.kernel.org designates 2620:137:e000::3:4 as permitted sender) smtp.mailfrom=linux-kernel-owner@vger.kernel.org Received: from out1.vger.email (depot.vger.email [IPv6:2620:137:e000::3:0]) by howler.vger.email (Postfix) with ESMTP id 11E5A80597B3; Sun, 3 Dec 2023 23:53:46 -0800 (PST) X-Virus-Status: Clean X-Virus-Scanned: clamav-milter 0.103.11 at howler.vger.email Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S234731AbjLDHxO (ORCPT + 99 others); Mon, 4 Dec 2023 02:53:14 -0500 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:55936 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S234752AbjLDHwr (ORCPT ); Mon, 4 Dec 2023 02:52:47 -0500 Received: from todd.t-8ch.de (todd.t-8ch.de [159.69.126.157]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 4AF7E199; Sun, 3 Dec 2023 23:52:37 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=weissschuh.net; s=mail; t=1701676352; bh=vXMcA8YQYm2FUpqjpEn4cJ52/C+SgDpaLPB9ntMBbJY=; h=From:Date:Subject:References:In-Reply-To:To:Cc:From; b=Ha4O5LQvgzb+eIcnyIaDw+qV2TmGRQfeldo6D+8PQCbxylpCyKRi7bl9TnXt0x+B6 h584DcuV/On+vuIJIB1UIpEVJMVWtUUhR7FS3P0VdbKvQMFaxkSCbryMmHbYZtn6NH OQoBluUF8YZ8E4iEHIF8kAuNVmaeB6fI5pqsUiM8= From: =?utf-8?q?Thomas_Wei=C3=9Fschuh?= Date: Mon, 04 Dec 2023 08:52:24 +0100 Subject: [PATCH v2 11/18] sysctl: treewide: constify ctl_table_header::ctl_table_arg MIME-Version: 1.0 Message-Id: <20231204-const-sysctl-v2-11-7a5060b11447@weissschuh.net> References: <20231204-const-sysctl-v2-0-7a5060b11447@weissschuh.net> In-Reply-To: <20231204-const-sysctl-v2-0-7a5060b11447@weissschuh.net> To: Kees Cook , "Gustavo A. R. Silva" , Luis Chamberlain , Iurii Zaikin , Greg Kroah-Hartman , Joel Granados Cc: linux-hardening@vger.kernel.org, linux-kernel@vger.kernel.org, linux-fsdevel@vger.kernel.org, =?utf-8?q?Thomas_Wei=C3=9Fschuh?= X-Mailer: b4 0.12.4 X-Developer-Signature: v=1; a=ed25519-sha256; t=1701676350; l=15050; i=linux@weissschuh.net; s=20221212; h=from:subject:message-id; bh=vXMcA8YQYm2FUpqjpEn4cJ52/C+SgDpaLPB9ntMBbJY=; b=OwWuV9Xs9QPUA5m9POZBh/zXdAYHhnGV3tTqhswOKBt802HUj9KzAenQaV/+S2FOhExEd3WIg Aib7mqxY2enDKE4mo5rGY/BkeiwPPKCwZF51KBkfugeWa2nQveS7hyM X-Developer-Key: i=linux@weissschuh.net; a=ed25519; pk=KcycQgFPX2wGR5azS7RhpBqedglOZVgRPfdFSPB1LNw= X-Spam-Status: No, score=-0.9 required=5.0 tests=DKIM_SIGNED,DKIM_VALID, DKIM_VALID_AU,HEADER_FROM_DIFFERENT_DOMAINS,MAILING_LIST_MULTI, SPF_HELO_NONE,SPF_PASS,T_SCC_BODY_TEXT_LINE autolearn=unavailable autolearn_force=no version=3.4.6 X-Spam-Checker-Version: SpamAssassin 3.4.6 (2021-04-09) on howler.vger.email Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org X-Greylist: Sender passed SPF test, not delayed by milter-greylist-4.6.4 (howler.vger.email [0.0.0.0]); Sun, 03 Dec 2023 23:53:46 -0800 (PST) X-getmail-retrieved-from-mailbox: INBOX X-GMAIL-THRID: 1784337067450079127 X-GMAIL-MSGID: 1784337067450079127 In a future commit the sysctl core will only use "const struct ctl_table". As a preparation for that adapt the ctl_table_arg member. Signed-off-by: Thomas Weißschuh --- drivers/net/vrf.c | 2 +- include/linux/sysctl.h | 2 +- ipc/ipc_sysctl.c | 2 +- ipc/mq_sysctl.c | 2 +- kernel/ucount.c | 2 +- net/ax25/sysctl_net_ax25.c | 2 +- net/bridge/br_netfilter_hooks.c | 4 +++- net/core/sysctl_net_core.c | 2 +- net/ieee802154/6lowpan/reassembly.c | 2 +- net/ipv4/devinet.c | 2 +- net/ipv4/ip_fragment.c | 2 +- net/ipv4/route.c | 2 +- net/ipv4/sysctl_net_ipv4.c | 2 +- net/ipv4/xfrm4_policy.c | 2 +- net/ipv6/addrconf.c | 2 +- net/ipv6/netfilter/nf_conntrack_reasm.c | 2 +- net/ipv6/reassembly.c | 2 +- net/ipv6/sysctl_net_ipv6.c | 6 +++--- net/ipv6/xfrm6_policy.c | 2 +- net/mpls/af_mpls.c | 4 ++-- net/mptcp/ctrl.c | 2 +- net/netfilter/nf_conntrack_standalone.c | 2 +- net/netfilter/nf_log.c | 2 +- net/sctp/sysctl.c | 2 +- net/smc/smc_sysctl.c | 2 +- net/unix/sysctl_net_unix.c | 2 +- net/xfrm/xfrm_sysctl.c | 2 +- 27 files changed, 32 insertions(+), 30 deletions(-) diff --git a/drivers/net/vrf.c b/drivers/net/vrf.c index bb95ce43cd97..66f8542f3b18 100644 --- a/drivers/net/vrf.c +++ b/drivers/net/vrf.c @@ -1971,7 +1971,7 @@ static int vrf_netns_init_sysctl(struct net *net, struct netns_vrf *nn_vrf) static void vrf_netns_exit_sysctl(struct net *net) { struct netns_vrf *nn_vrf = net_generic(net, vrf_net_id); - struct ctl_table *table; + const struct ctl_table *table; table = nn_vrf->ctl_hdr->ctl_table_arg; unregister_net_sysctl_table(nn_vrf->ctl_hdr); diff --git a/include/linux/sysctl.h b/include/linux/sysctl.h index 92c1d0114cdc..56b89e5294e9 100644 --- a/include/linux/sysctl.h +++ b/include/linux/sysctl.h @@ -182,7 +182,7 @@ struct ctl_table_header { struct rcu_head rcu; }; struct completion *unregistering; - struct ctl_table *ctl_table_arg; + const struct ctl_table *ctl_table_arg; struct ctl_table_root *root; struct ctl_table_set *set; struct ctl_dir *parent; diff --git a/ipc/ipc_sysctl.c b/ipc/ipc_sysctl.c index b087787f608f..55d6b9f1e508 100644 --- a/ipc/ipc_sysctl.c +++ b/ipc/ipc_sysctl.c @@ -274,7 +274,7 @@ bool setup_ipc_sysctls(struct ipc_namespace *ns) void retire_ipc_sysctls(struct ipc_namespace *ns) { - struct ctl_table *tbl; + const struct ctl_table *tbl; tbl = ns->ipc_sysctls->ctl_table_arg; unregister_sysctl_table(ns->ipc_sysctls); diff --git a/ipc/mq_sysctl.c b/ipc/mq_sysctl.c index ebb5ed81c151..2a2ba6ded037 100644 --- a/ipc/mq_sysctl.c +++ b/ipc/mq_sysctl.c @@ -124,7 +124,7 @@ bool setup_mq_sysctls(struct ipc_namespace *ns) void retire_mq_sysctls(struct ipc_namespace *ns) { - struct ctl_table *tbl; + const struct ctl_table *tbl; tbl = ns->mq_sysctls->ctl_table_arg; unregister_sysctl_table(ns->mq_sysctls); diff --git a/kernel/ucount.c b/kernel/ucount.c index 90300840256b..366a2c1971f5 100644 --- a/kernel/ucount.c +++ b/kernel/ucount.c @@ -119,7 +119,7 @@ bool setup_userns_sysctls(struct user_namespace *ns) void retire_userns_sysctls(struct user_namespace *ns) { #ifdef CONFIG_SYSCTL - struct ctl_table *tbl; + const struct ctl_table *tbl; tbl = ns->sysctls->ctl_table_arg; unregister_sysctl_table(ns->sysctls); diff --git a/net/ax25/sysctl_net_ax25.c b/net/ax25/sysctl_net_ax25.c index db66e11e7fe8..e0128dc9def3 100644 --- a/net/ax25/sysctl_net_ax25.c +++ b/net/ax25/sysctl_net_ax25.c @@ -171,7 +171,7 @@ int ax25_register_dev_sysctl(ax25_dev *ax25_dev) void ax25_unregister_dev_sysctl(ax25_dev *ax25_dev) { struct ctl_table_header *header = ax25_dev->sysheader; - struct ctl_table *table; + const struct ctl_table *table; if (header) { ax25_dev->sysheader = NULL; diff --git a/net/bridge/br_netfilter_hooks.c b/net/bridge/br_netfilter_hooks.c index 6adcb45bca75..74056b563b95 100644 --- a/net/bridge/br_netfilter_hooks.c +++ b/net/bridge/br_netfilter_hooks.c @@ -1146,7 +1146,9 @@ static int br_netfilter_sysctl_init_net(struct net *net) static void br_netfilter_sysctl_exit_net(struct net *net, struct brnf_net *brnet) { - struct ctl_table *table = brnet->ctl_hdr->ctl_table_arg; + const struct ctl_table *table; + + table = brnet->ctl_hdr->ctl_table_arg; unregister_net_sysctl_table(brnet->ctl_hdr); if (!net_eq(net, &init_net)) diff --git a/net/core/sysctl_net_core.c b/net/core/sysctl_net_core.c index 03f1edb948d7..08a01b31be99 100644 --- a/net/core/sysctl_net_core.c +++ b/net/core/sysctl_net_core.c @@ -728,7 +728,7 @@ static __net_init int sysctl_core_net_init(struct net *net) static __net_exit void sysctl_core_net_exit(struct net *net) { - struct ctl_table *tbl; + const struct ctl_table *tbl; tbl = net->core.sysctl_hdr->ctl_table_arg; unregister_net_sysctl_table(net->core.sysctl_hdr); diff --git a/net/ieee802154/6lowpan/reassembly.c b/net/ieee802154/6lowpan/reassembly.c index 6dd960ec558c..2a983cf450da 100644 --- a/net/ieee802154/6lowpan/reassembly.c +++ b/net/ieee802154/6lowpan/reassembly.c @@ -399,7 +399,7 @@ static int __net_init lowpan_frags_ns_sysctl_register(struct net *net) static void __net_exit lowpan_frags_ns_sysctl_unregister(struct net *net) { - struct ctl_table *table; + const struct ctl_table *table; struct netns_ieee802154_lowpan *ieee802154_lowpan = net_ieee802154_lowpan(net); diff --git a/net/ipv4/devinet.c b/net/ipv4/devinet.c index ca0ff15dc8fa..f8a56fe95801 100644 --- a/net/ipv4/devinet.c +++ b/net/ipv4/devinet.c @@ -2767,7 +2767,7 @@ static __net_init int devinet_init_net(struct net *net) static __net_exit void devinet_exit_net(struct net *net) { #ifdef CONFIG_SYSCTL - struct ctl_table *tbl; + const struct ctl_table *tbl; tbl = net->ipv4.forw_hdr->ctl_table_arg; unregister_net_sysctl_table(net->ipv4.forw_hdr); diff --git a/net/ipv4/ip_fragment.c b/net/ipv4/ip_fragment.c index a4941f53b523..6b9285fd6f06 100644 --- a/net/ipv4/ip_fragment.c +++ b/net/ipv4/ip_fragment.c @@ -632,7 +632,7 @@ static int __net_init ip4_frags_ns_ctl_register(struct net *net) static void __net_exit ip4_frags_ns_ctl_unregister(struct net *net) { - struct ctl_table *table; + const struct ctl_table *table; table = net->ipv4.frags_hdr->ctl_table_arg; unregister_net_sysctl_table(net->ipv4.frags_hdr); diff --git a/net/ipv4/route.c b/net/ipv4/route.c index 16615d107cf0..7c7884110a58 100644 --- a/net/ipv4/route.c +++ b/net/ipv4/route.c @@ -3590,7 +3590,7 @@ static __net_init int sysctl_route_net_init(struct net *net) static __net_exit void sysctl_route_net_exit(struct net *net) { - struct ctl_table *tbl; + const struct ctl_table *tbl; tbl = net->ipv4.route_hdr->ctl_table_arg; unregister_net_sysctl_table(net->ipv4.route_hdr); diff --git a/net/ipv4/sysctl_net_ipv4.c b/net/ipv4/sysctl_net_ipv4.c index f63a545a7374..599244f9ad65 100644 --- a/net/ipv4/sysctl_net_ipv4.c +++ b/net/ipv4/sysctl_net_ipv4.c @@ -1558,7 +1558,7 @@ static __net_init int ipv4_sysctl_init_net(struct net *net) static __net_exit void ipv4_sysctl_exit_net(struct net *net) { - struct ctl_table *table; + const struct ctl_table *table; kfree(net->ipv4.sysctl_local_reserved_ports); table = net->ipv4.ipv4_hdr->ctl_table_arg; diff --git a/net/ipv4/xfrm4_policy.c b/net/ipv4/xfrm4_policy.c index c33bca2c3841..1dda59e0aeab 100644 --- a/net/ipv4/xfrm4_policy.c +++ b/net/ipv4/xfrm4_policy.c @@ -186,7 +186,7 @@ static __net_init int xfrm4_net_sysctl_init(struct net *net) static __net_exit void xfrm4_net_sysctl_exit(struct net *net) { - struct ctl_table *table; + const struct ctl_table *table; if (!net->ipv4.xfrm4_hdr) return; diff --git a/net/ipv6/addrconf.c b/net/ipv6/addrconf.c index 3aaea56b5166..aa5654d29334 100644 --- a/net/ipv6/addrconf.c +++ b/net/ipv6/addrconf.c @@ -7180,7 +7180,7 @@ static int __addrconf_sysctl_register(struct net *net, char *dev_name, static void __addrconf_sysctl_unregister(struct net *net, struct ipv6_devconf *p, int ifindex) { - struct ctl_table *table; + const struct ctl_table *table; if (!p->sysctl_header) return; diff --git a/net/ipv6/netfilter/nf_conntrack_reasm.c b/net/ipv6/netfilter/nf_conntrack_reasm.c index b2dd48911c8d..1d6f6deb2562 100644 --- a/net/ipv6/netfilter/nf_conntrack_reasm.c +++ b/net/ipv6/netfilter/nf_conntrack_reasm.c @@ -105,7 +105,7 @@ static int nf_ct_frag6_sysctl_register(struct net *net) static void __net_exit nf_ct_frags6_sysctl_unregister(struct net *net) { struct nft_ct_frag6_pernet *nf_frag = nf_frag_pernet(net); - struct ctl_table *table; + const struct ctl_table *table; table = nf_frag->nf_frag_frags_hdr->ctl_table_arg; unregister_net_sysctl_table(nf_frag->nf_frag_frags_hdr); diff --git a/net/ipv6/reassembly.c b/net/ipv6/reassembly.c index 5ebc47da1000..0746dc1f1e61 100644 --- a/net/ipv6/reassembly.c +++ b/net/ipv6/reassembly.c @@ -487,7 +487,7 @@ static int __net_init ip6_frags_ns_sysctl_register(struct net *net) static void __net_exit ip6_frags_ns_sysctl_unregister(struct net *net) { - struct ctl_table *table; + const struct ctl_table *table; table = net->ipv6.sysctl.frags_hdr->ctl_table_arg; unregister_net_sysctl_table(net->ipv6.sysctl.frags_hdr); diff --git a/net/ipv6/sysctl_net_ipv6.c b/net/ipv6/sysctl_net_ipv6.c index 888676163e90..75de55f907b0 100644 --- a/net/ipv6/sysctl_net_ipv6.c +++ b/net/ipv6/sysctl_net_ipv6.c @@ -313,9 +313,9 @@ static int __net_init ipv6_sysctl_net_init(struct net *net) static void __net_exit ipv6_sysctl_net_exit(struct net *net) { - struct ctl_table *ipv6_table; - struct ctl_table *ipv6_route_table; - struct ctl_table *ipv6_icmp_table; + const struct ctl_table *ipv6_table; + const struct ctl_table *ipv6_route_table; + const struct ctl_table *ipv6_icmp_table; ipv6_table = net->ipv6.sysctl.hdr->ctl_table_arg; ipv6_route_table = net->ipv6.sysctl.route_hdr->ctl_table_arg; diff --git a/net/ipv6/xfrm6_policy.c b/net/ipv6/xfrm6_policy.c index 42fb6996b077..4891012b692f 100644 --- a/net/ipv6/xfrm6_policy.c +++ b/net/ipv6/xfrm6_policy.c @@ -218,7 +218,7 @@ static int __net_init xfrm6_net_sysctl_init(struct net *net) static void __net_exit xfrm6_net_sysctl_exit(struct net *net) { - struct ctl_table *table; + const struct ctl_table *table; if (!net->ipv6.sysctl.xfrm6_hdr) return; diff --git a/net/mpls/af_mpls.c b/net/mpls/af_mpls.c index 1af29af65388..832b63bb5646 100644 --- a/net/mpls/af_mpls.c +++ b/net/mpls/af_mpls.c @@ -1438,7 +1438,7 @@ static void mpls_dev_sysctl_unregister(struct net_device *dev, struct mpls_dev *mdev) { struct net *net = dev_net(dev); - struct ctl_table *table; + const struct ctl_table *table; if (!mdev->sysctl) return; @@ -2704,7 +2704,7 @@ static void mpls_net_exit(struct net *net) { struct mpls_route __rcu **platform_label; size_t platform_labels; - struct ctl_table *table; + const struct ctl_table *table; unsigned int index; table = net->mpls.ctl->ctl_table_arg; diff --git a/net/mptcp/ctrl.c b/net/mptcp/ctrl.c index 13fe0748dde8..8d661156ab8c 100644 --- a/net/mptcp/ctrl.c +++ b/net/mptcp/ctrl.c @@ -198,7 +198,7 @@ static int mptcp_pernet_new_table(struct net *net, struct mptcp_pernet *pernet) static void mptcp_pernet_del_table(struct mptcp_pernet *pernet) { - struct ctl_table *table = pernet->ctl_table_hdr->ctl_table_arg; + const struct ctl_table *table = pernet->ctl_table_hdr->ctl_table_arg; unregister_net_sysctl_table(pernet->ctl_table_hdr); diff --git a/net/netfilter/nf_conntrack_standalone.c b/net/netfilter/nf_conntrack_standalone.c index 0ee98ce5b816..bb9dea676ec1 100644 --- a/net/netfilter/nf_conntrack_standalone.c +++ b/net/netfilter/nf_conntrack_standalone.c @@ -1122,7 +1122,7 @@ static int nf_conntrack_standalone_init_sysctl(struct net *net) static void nf_conntrack_standalone_fini_sysctl(struct net *net) { struct nf_conntrack_net *cnet = nf_ct_pernet(net); - struct ctl_table *table; + const struct ctl_table *table; table = cnet->sysctl_header->ctl_table_arg; unregister_net_sysctl_table(cnet->sysctl_header); diff --git a/net/netfilter/nf_log.c b/net/netfilter/nf_log.c index 8cc52d2bd31b..2e897a9f0689 100644 --- a/net/netfilter/nf_log.c +++ b/net/netfilter/nf_log.c @@ -508,7 +508,7 @@ static int netfilter_log_sysctl_init(struct net *net) static void netfilter_log_sysctl_exit(struct net *net) { - struct ctl_table *table; + const struct ctl_table *table; table = net->nf.nf_log_dir_header->ctl_table_arg; unregister_net_sysctl_table(net->nf.nf_log_dir_header); diff --git a/net/sctp/sysctl.c b/net/sctp/sysctl.c index f65d6f92afcb..25bdf17c7262 100644 --- a/net/sctp/sysctl.c +++ b/net/sctp/sysctl.c @@ -624,7 +624,7 @@ int sctp_sysctl_net_register(struct net *net) void sctp_sysctl_net_unregister(struct net *net) { - struct ctl_table *table; + const struct ctl_table *table; table = net->sctp.sysctl_header->ctl_table_arg; unregister_net_sysctl_table(net->sctp.sysctl_header); diff --git a/net/smc/smc_sysctl.c b/net/smc/smc_sysctl.c index 5cbc18c6e62b..c632df62ff90 100644 --- a/net/smc/smc_sysctl.c +++ b/net/smc/smc_sysctl.c @@ -109,7 +109,7 @@ int __net_init smc_sysctl_net_init(struct net *net) void __net_exit smc_sysctl_net_exit(struct net *net) { - struct ctl_table *table; + const struct ctl_table *table; table = net->smc.smc_hdr->ctl_table_arg; unregister_net_sysctl_table(net->smc.smc_hdr); diff --git a/net/unix/sysctl_net_unix.c b/net/unix/sysctl_net_unix.c index 3e84b31c355a..44996af61999 100644 --- a/net/unix/sysctl_net_unix.c +++ b/net/unix/sysctl_net_unix.c @@ -52,7 +52,7 @@ int __net_init unix_sysctl_register(struct net *net) void unix_sysctl_unregister(struct net *net) { - struct ctl_table *table; + const struct ctl_table *table; table = net->unx.ctl->ctl_table_arg; unregister_net_sysctl_table(net->unx.ctl); diff --git a/net/xfrm/xfrm_sysctl.c b/net/xfrm/xfrm_sysctl.c index 7fdeafc838a7..e972930c292b 100644 --- a/net/xfrm/xfrm_sysctl.c +++ b/net/xfrm/xfrm_sysctl.c @@ -76,7 +76,7 @@ int __net_init xfrm_sysctl_init(struct net *net) void __net_exit xfrm_sysctl_fini(struct net *net) { - struct ctl_table *table; + const struct ctl_table *table; table = net->xfrm.sysctl_hdr->ctl_table_arg; unregister_net_sysctl_table(net->xfrm.sysctl_hdr);