ipv4: convert udp_l3mdev_accept sysctl to u8

Reduce footprint of sysctls.

Signed-off-by: Eric Dumazet <edumazet@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

diff --git a/include/net/netns/ipv4.h b/include/net/netns/ipv4.h
index b187ac5..d309b1b 100644 (file)
--- a/include/net/netns/ipv4.h
+++ b/include/net/netns/ipv4.h
@@ -194,7 +194,7 @@ struct netns_ipv4 {
        u8 sysctl_fib_notify_on_flag_change;
 
 #ifdef CONFIG_NET_L3_MASTER_DEV
-       int sysctl_udp_l3mdev_accept;
+       u8 sysctl_udp_l3mdev_accept;
 #endif
 
        int sysctl_igmp_max_memberships;

diff --git a/net/ipv4/sysctl_net_ipv4.c b/net/ipv4/sysctl_net_ipv4.c
index a2352d8..1b6ce64 100644 (file)
--- a/net/ipv4/sysctl_net_ipv4.c
+++ b/net/ipv4/sysctl_net_ipv4.c
@@ -1065,9 +1065,9 @@ static struct ctl_table ipv4_net_table[] = {
        {
                .procname       = "udp_l3mdev_accept",
                .data           = &init_net.ipv4.sysctl_udp_l3mdev_accept,
-               .maxlen         = sizeof(int),
+               .maxlen         = sizeof(u8),
                .mode           = 0644,
-               .proc_handler   = proc_dointvec_minmax,
+               .proc_handler   = proc_dou8vec_minmax,
                .extra1         = SYSCTL_ZERO,
                .extra2         = SYSCTL_ONE,
        },