Copy stable/10@r272459 to releng/10.1 as part of
the 10.1-RELEASE process.

Approved by: re (implicit)
Sponsored by: The FreeBSD Foundation

Copy head (r256279) to stable/10 as part of the 10.0-RELEASE cycle.

Approved by: re (implicit)
Sponsored by: The FreeBSD Foundation

Fxi a bunch of typos.

PR: misc/174625
Submitted by: Jeremy Chadwick <jdc@koitsu.org>

The last big commit: let usr.sbin/ use WARNS=6 by default.

Purge some useless mergeinfo.

Move sys/pccard/*.h here.

Remove unnecessary pccard/cardinfo.h include.

damn. Always do make depend. Forgot to recompile main because of it,
so the changes for the struct cis -> struct tuple_list didn't get
made. They have been now.

Fix check for link target so we don't print cardbus CIS information twice.
Also, eliminate some magic constants and replace them with values from cis.h.

Restore now-useless ioctl as a roadmap. The original dumpcis code
assumed it had to toggle between attribute and common memory in the
cards. The kernel is supposed to cope with that automatically and
give us a tuple list. However, there's a number of details of how
that happens that's currently, ummm, magical and/or not implemented
for 16-bit PC Cards that have CIS_LONGLINK_C tuples in them (eg, mix
both attribute memory and common memory). Also, CIS_LOGNLINK_A
entries might not be handled completely correctly either, since there
can be gaps in the attribute vs common stuff.

All this will need to be corrected in the kernel. Once it is
corrected, dumpcis can be made even simpler in some ways, a little
more complicated in others once an API for presentation of CIS to
userland in these weird cases is settled upon.

More dead code removal.

The original programs that this code was lifted from (pccardd and
pccardc) parsed data to make decisions about stuff related to card
configuration.

The purely CIS dumping aspect of this program obviates the need for
such parsing. Save some space and don't parse the data anymore for
configuration purposes. Just parse it to print an interpreatation of
it.

dump() really is unused, so retire it.

Simplify: move dumpcis.c and dumpcisfile.c into main.

make this warns=5 clean

Move dumpcis to its own directory, start to decouple from the
pccardc/pccardd history.