From: Pavel Tikhomirov <ptikhomirov@xxxxxxxxxxxxx> [ Upstream commit b007f09072ca8afa118ade333e717ba443e8d807 ] > cat /proc/sys/net/ipv4/tcp_notsent_lowat -1 > echo 4294967295 > /proc/sys/net/ipv4/tcp_notsent_lowat -bash: echo: write error: Invalid argument > echo -2147483648 > /proc/sys/net/ipv4/tcp_notsent_lowat > cat /proc/sys/net/ipv4/tcp_notsent_lowat -2147483648 but in documentation we have "tcp_notsent_lowat - UNSIGNED INTEGER" v2: simplify to just proc_douintvec Signed-off-by: Pavel Tikhomirov <ptikhomirov@xxxxxxxxxxxxx> Signed-off-by: David S. Miller <davem@xxxxxxxxxxxxx> Signed-off-by: Sasha Levin <alexander.levin@xxxxxxxxxxx> --- net/ipv4/sysctl_net_ipv4.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/net/ipv4/sysctl_net_ipv4.c b/net/ipv4/sysctl_net_ipv4.c index 80bc36b25de2..566cfc50f7cf 100644 --- a/net/ipv4/sysctl_net_ipv4.c +++ b/net/ipv4/sysctl_net_ipv4.c @@ -958,7 +958,7 @@ static struct ctl_table ipv4_net_table[] = { .data = &init_net.ipv4.sysctl_tcp_notsent_lowat, .maxlen = sizeof(unsigned int), .mode = 0644, - .proc_handler = proc_dointvec, + .proc_handler = proc_douintvec, }, #ifdef CONFIG_IP_ROUTE_MULTIPATH { -- 2.11.0