oleg 6a84fb6ac0 Properly lock ifmedia callbacks. This should prevent concurrent access to PHY.
Following issues should be resolved:
- random watchdog timeouts (caused by concurrent phy access)
- some link state issues
- non working TX if media type was set explicitly

PR:		kern/98738
Approved by:	glebius (mentor)
MFC after:	2 weeks
2006-08-24 14:41:16 +00:00
..