CVS commit: src/sys/net

["Roy Marples" <roy%netbsd.org@localhost>]

Module Name:    src
Committed By:   roy
Date:           Sat Sep 26 11:57:05 UTC 2020

Modified Files:
        src/sys/net: if.c if.h

Log Message:
net: Fix the setting of if_link_state

Link state changes are not dependant on the interface being up, but we also
need to guard against more link state changes being scheduled when the
interface is being detached.

We do this by clearing the link queue but keeping if_link_sheduled = true.
We can check for this in both if_link_state_change() and
if_link_state_change_work() to abort early as there is no point in doing
anything if the interface is being detached because if_down() is called
in if_detach() after the workqueue has been drained to the same overall
effect.


To generate a diff of this commit:
cvs rdiff -u -r1.479 -r1.480 src/sys/net/if.c
cvs rdiff -u -r1.285 -r1.286 src/sys/net/if.h

Please note that diffs are not public domain; they are subject to the
copyright notices on the relevant files.