Re: [PATCH] net-tcp: /proc/sys/net/ipv4/tcp_probe_interval is a u32 not int

[Eric Dumazet]

On 09/25/2018 05:41 PM, Maciej Żenczykowski wrote:
> From: Maciej Żenczykowski <m...@google.com>
> 
> (fix documentation and sysctl access to treat it as such)
> 
> Signed-off-by: Maciej Żenczykowski <m...@google.com>
> ---

While we are at it, we probably should add sane limits,
given tcp_mtu_check_reprobe() does :

u32 interval = net->ipv4.sysctl_tcp_probe_interval;
...
if (unlikely(delta >= interval * HZ)) {

A limit of UINT_MAX / HZ would avoid an overflow I guess.