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| author | Jakub Kicinski <kuba@kernel.org> | 2021-04-17 19:42:54 +0200 |
|---|---|---|
| committer | Jakub Kicinski <kuba@kernel.org> | 2021-04-17 20:08:07 +0200 |
| commit | 8203c7ce4ef2840929d38b447b4ccd384727f92b (patch) | |
| tree | 07b4079057e035a4063788f120665f5e42967e8e /net/ipv4/sysctl_net_ipv4.c | |
| parent | Merge branch 'mptcp-fixes-and-tracepoints' (diff) | |
| parent | Merge tag 'net-5.12-rc8' of git://git.kernel.org/pub/scm/linux/kernel/git/net... (diff) | |
| download | linux-8203c7ce4ef2840929d38b447b4ccd384727f92b.tar.xz linux-8203c7ce4ef2840929d38b447b4ccd384727f92b.zip | |
Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net
drivers/net/ethernet/stmicro/stmmac/stmmac_main.c
- keep the ZC code, drop the code related to reinit
net/bridge/netfilter/ebtables.c
- fix build after move to net_generic
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Diffstat (limited to 'net/ipv4/sysctl_net_ipv4.c')
| -rw-r--r-- | net/ipv4/sysctl_net_ipv4.c | 16 |
1 files changed, 13 insertions, 3 deletions
diff --git a/net/ipv4/sysctl_net_ipv4.c b/net/ipv4/sysctl_net_ipv4.c index a09e466ce11d..a62934b9f15a 100644 --- a/net/ipv4/sysctl_net_ipv4.c +++ b/net/ipv4/sysctl_net_ipv4.c @@ -1383,9 +1383,19 @@ static __net_init int ipv4_sysctl_init_net(struct net *net) if (!table) goto err_alloc; - /* Update the variables to point into the current struct net */ - for (i = 0; i < ARRAY_SIZE(ipv4_net_table) - 1; i++) - table[i].data += (void *)net - (void *)&init_net; + for (i = 0; i < ARRAY_SIZE(ipv4_net_table) - 1; i++) { + if (table[i].data) { + /* Update the variables to point into + * the current struct net + */ + table[i].data += (void *)net - (void *)&init_net; + } else { + /* Entries without data pointer are global; + * Make them read-only in non-init_net ns + */ + table[i].mode &= ~0222; + } + } } net->ipv4.ipv4_hdr = register_net_sysctl(net, "net/ipv4", table); |