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net: Const qualify ctl_tables that kmemdup unconditionally

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Const qualify clt_table arrays in the net directory that always pass a
memory duplicate to sysctl register. The template would then be in
.rodata and the kmemdup'ed array would be outside.

Signed-off-by: Joel Granados <joel.granados@kernel.org>
Link: https://patch.msgid.link/20260810-jag-net_const_qualify-v4-2-77e888237c69@kernel.org
Reviewed-by: Simon Horman <horms@kernel.org>
Signed-off-by: Paolo Abeni <pabeni@redhat.com>
This commit is contained in:
Joel Granados
2026-08-10 15:01:03 +02:00
committed by Paolo Abeni
parent ef6cb145e2
commit 09190c59cd
7 changed files with 7 additions and 7 deletions
Download Patch File Download Diff File Expand all files Collapse all files

2
net/ipv4/devinet.c
View File

@@ -2796,7 +2796,7 @@ static void devinet_sysctl_unregister(struct in_device *idev)
neigh_sysctl_unregister(idev->arp_parms);
}
static struct ctl_table ctl_forward_entry[] = {
static const struct ctl_table ctl_forward_entry[] = {
{
.procname = "ip_forward",
.data = &ipv4_devconf.data[

2
net/ipv6/icmp.c
View File

@@ -1374,7 +1374,7 @@ EXPORT_SYMBOL(icmpv6_err_convert);
static u32 icmpv6_errors_extension_mask_all =
GENMASK_U8(ICMP_ERR_EXT_COUNT - 1, 0);
static struct ctl_table ipv6_icmp_table_template[] = {
static const struct ctl_table ipv6_icmp_table_template[] = {
{
.procname = "ratelimit",
.data = &init_net.ipv6.sysctl.icmpv6_time,

2
net/ipv6/route.c
View File

@@ -6590,7 +6590,7 @@ static int ipv6_sysctl_rtcache_flush(const struct ctl_table *ctl, int write,
return 0;
}
static struct ctl_table ipv6_route_table_template[] = {
static const struct ctl_table ipv6_route_table_template[] = {
{
.procname = "max_size",
.data = &init_net.ipv6.sysctl.ip6_rt_max_size,

2
net/ipv6/sysctl_net_ipv6.c
View File

@@ -61,7 +61,7 @@ proc_rt6_multipath_hash_fields(const struct ctl_table *table, int write, void *b
return ret;
}
static struct ctl_table ipv6_table_template[] = {
static const struct ctl_table ipv6_table_template[] = {
{
.procname = "bindv6only",
.data = &init_net.ipv6.sysctl.bindv6only,

2
net/netfilter/nf_conntrack_standalone.c
View File

@@ -639,7 +639,7 @@ enum nf_ct_sysctl_index {
NF_SYSCTL_CT_LAST_SYSCTL,
};
static struct ctl_table nf_ct_sysctl_table[] = {
static const struct ctl_table nf_ct_sysctl_table[] = {
[NF_SYSCTL_CT_MAX] = {
.procname = "nf_conntrack_max",
.data = &nf_conntrack_max,

2
net/sctp/sysctl.c
View File

@@ -92,7 +92,7 @@ static struct ctl_table sctp_table[] = {
#define SCTP_PF_RETRANS_IDX 2
#define SCTP_PS_RETRANS_IDX 3
static struct ctl_table sctp_net_table[] = {
static const struct ctl_table sctp_net_table[] = {
[SCTP_RTO_MIN_IDX] = {
.procname = "rto_min",
.data = &init_net.sctp.rto_min,

2
net/xfrm/xfrm_sysctl.c
View File

@@ -13,7 +13,7 @@ static void __net_init __xfrm_sysctl_init(struct net *net)
}
#ifdef CONFIG_SYSCTL
static struct ctl_table xfrm_table[] = {
static const struct ctl_table xfrm_table[] = {
{
.procname = "xfrm_aevent_etime",
.maxlen = sizeof(u32),