ipv6: Fix SO_REUSEPORT UDP socket with implicit sk_ipv6only

[linux/fpc-iii.git] / Documentation / clearing-warn-once.txt

WARN_ONCE / WARN_ON_ONCE only print a warning once.

echo 1 > /sys/kernel/debug/clear_warn_once

clears the state and allows the warnings to print once again.
This can be useful after test suite runs to reproduce problems.