CVS commit: src/sys/dev/mii

["Taylor R Campbell" <riastradh%netbsd.org@localhost>]

Module Name:    src
Committed By:   riastradh
Date:           Sat Aug 20 11:12:46 UTC 2022

Modified Files:
        src/sys/dev/mii: mii_physubr.c

Log Message:
mii(4): Make mii_down wait for concurrent mii_phy_auto to finish.

This is important for callers in if_stop routines to guarantee that
all concurrent access to the mii registers has ended.

Drivers must not call this from softint context.  Drivers with custom
watchdog timers (not if_watchdog) that do if_stop from callout must
defer to thread context instead, e.g. via workqueue(9) -- as they
should be doing anyway for heavyweight operations like if_stop.


To generate a diff of this commit:
cvs rdiff -u -r1.99 -r1.100 src/sys/dev/mii/mii_physubr.c

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