Pull in r3828 from upstream (remove dead code, fix prototypes)
Import 2014-01-01 which allows to support bison's token-table and allows
to build ntpd into vendor
Convert an unused banner from skeleton.c into a comment.
It is added to every generated files and fix build at certain warning level with clang 3.4

Submitted by:	Thomas Dickey <dickey@his.com> (byacc upstream)
Spotted by:	glebius
Factor out common ioport handler code for better hygiene -- pointed
out by neel@.

Approved by:	neel (co-mentor)
Keep geom_uncompress(4) in line with geom_uzip(4), bring in the r264504 fix.

Make sure not to start I/O bigger than MAXPHYS bytes.

Quoting r264504:

When we detect the condition, we'll reduce the block count and perform
a "short" read.  In g_uncompress_done() we need to consider the original
I/O length and stop early if we're about to deflate a block that we didn't
read.  By using bio_completed in the cloned BIO and not bio_length to
check for this, we automatically and gracefully handle short reads that
our providers may be doing on top of the short reads we may initiate
ourselves.

Reviewed by:	marcel
Use calloc() in favor of malloc + memset.

Reviewed by:	neel
Check that port is started when MAC filter is set

The MAC filter set may be called without softc_lock held in the case of
SIOCADDMULTI and SIOCDELMULTI ioctls. The ioctl handler checks IFF_DRV_RUNNING
flag which implies port started, but it is not guaranteed to remain.
softc_lock shared lock can't be held in the case of these ioctls processing,
since it results in failure where kernel complains that non-sleepable
lock is held in sleeping thread.

Both problems are repeatable on LAG with LACP proto bring up.

Submitted by:   Andrew Rybchenko <Andrew.Rybchenko at oktetlabs.ru>
Sponsored by:   Solarflare Communications, Inc.

MFC after:	2 weeks
Fix installworld failure when kerberos source files have new timestamps

If a kerberos .hx source file is newer than the .h copy, but the content
is the same, then during buildworld the "cmp -s || cp" command in the
.hx.h rule would do nothing, leaving the .h copy with the older
timestamp.  During installworld the rule would again be invoked, causing
a failure as neither cmp or cp would exist in the temporary path.

As the underlying issue should be resolved by r262209, unconditionally
copy the file.

No objection:	peter@
Tested by:	gjb@
Sponsored by:	The FreeBSD Foundation
Simplify reading pw.conf(5) by using getline(3)
Import libucl 0.4.0
Adapt pkg(7) to the new libucl API
Import byacc 20140409
Play musical-KNOBS a bit more with release/arm/release.sh.

For stable/10, r264703 sets the correct WITH/WITHOUT
knobs to get xdev built with the arm-freebsd-gcc binary
installed.  Unfortunately, the same fix does not work on
head/.

Also, quite to my amazement, WITH_GCC=1 and WITH_GNUCXX=1
causes xdev to fail spectactularly at least on r264791.

The situation as it stands is:

 - gcc(1) is needed for the u-boot build.
 - cc(1) *cannot* be clang(1)

To shoe-horn the toolchain to make 'xdev' give what is
needed, remove WITH_GNUCXX=1 and add WITH_GCC_BOOTSTRAP=1.

MFC After:	1 week
X-MFC-To:	stable/10 only
X-MFC-Note:	after stable/10 is broken in this way...
Sponsored by:	The FreeBSD Foundation
Move xdev knobs from release/arm/release.sh and into an
XDEV_FLAGS variable in ${KERNCONF}.conf file.

MFC after:	3 days
X-MFC-Note:	fix stable/10 XDEV_FLAGS local for branch
Sponsored by:	The FreeBSD Foundation
Fix grammar error and trailing newline.

Submitted by:	danfe
MFC after:	3 days
Wrap the rate control re-init code in a lock, to serialise it with
concurrent updates from any completing transmits in other threads.

This was exposed when doing power save work - net80211 is constantly
doing reassociations and it's causing the rate control state to get
blanked out.  This could cause the rate control code to assert.

This should be MFCed to stable/10 as it's a stability fix.

Tested:

* AR5416, STA

MFC after:	7 days
- Get transmit loop more in line with the other serial drivers.
- Add a comment about FTDI and ZLPs.
- Correctly check odditiy of baud rate divisor.
- Correct IOCTL handling for "error" and "event" char.

MFC after:	1 weeks
Add a missing break.
Oops, revert r264801.
Update to byacc 20140409
Among all the modifications, this new byacc also solves a 14 year old bug [1]

PR:		bin/23254 [1]
Submitted by:	marka@nominum.com [1]
MFC after:	3 weeks
Allow .WAIT to appear in SUBDIR= lists, to provide some control over
parallel build order.  All subdirs before a .WAIT will be built before
any subdirs after it.

Reviewed by:	imp@