Shall we add some note info for tcp_min_snd_mss?

Hi David & Eric,

Commit 5f3e2bf0 (tcp: add tcp_min_snd_mss sysctl) add a new interface to adjust network. While if this variable been set too large, for example larger then (MTU - 40), the net link maybe damaged. So, how about adding some warning messages for the operator/administrator? In document, or in source code.

Thanks
Xiao

What kind of warning message do you
envision exactly ?

The sysctl is global, devices MTU can be quite arbitrary.

Like almost all sysctls, sysadmins are supposed to know what they are doing.