CVS commit: src/sys/dev/cardbus

["matthew green" <mrg%netbsd.org@localhost>]

Module Name:    src
Committed By:   mrg
Date:           Sat Apr 17 01:19:48 UTC 2021

Modified Files:
        src/sys/dev/cardbus: cardslot.c cardslotvar.h

Log Message:
convert cardslot event thread from wakeup/tsleep to mutex/condvar.
this avoids a strange hang at reboot i am seeing on an old pentium4-m
laptop, that was introduced with kern_mutex.c 1.91/92, though i can
not really explain why that matters (in the waiting thread, a pointer
that should be NULL remains non NULL.)  thanks to jmcneill@ for some
helpful review commentary here.

don't panic() if either "cardbus" or "pcmcia" didn't attach and a
card is inserted.  this can happen for various reasons, including
some regression in netbsd (-current, and -9, at least) that suggests
using PCI_BUS_FIXUP (though it still fails to attach the card i have.)

both found with GCC 10 testing, though both also occur with GCC 7 in
the netbsd-9 tree as well.


To generate a diff of this commit:
cvs rdiff -u -r1.57 -r1.58 src/sys/dev/cardbus/cardslot.c
cvs rdiff -u -r1.16 -r1.17 src/sys/dev/cardbus/cardslotvar.h

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