<net/if.h>: Do not include <net/if_var.h> for _KERNEL

* Clean up an ancient leftover: do not include <net/if_var.h> from <net/if.h>
for kernel stuffs.

* Adjust various files to include the necess

<net/if.h>: Do not include <net/if_var.h> for _KERNEL

* Clean up an ancient leftover: do not include <net/if_var.h> from <net/if.h>
for kernel stuffs.

* Adjust various files to include the necessary <net/if_var.h> header.

NOTE:
I have also tested removing the inclusion of <net/if.h> from <net/if_var.h>,
therefore add <net/if.h> inclusion for those files that need it but only
included <net/if_var.h>. For some files, the header inclusion orderings are
also adjusted.

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wlan - Sync netproto/802_11 from FreeBSD part 1/N

* Sync netproto/802_11 from FreeBSD, fbsd git dd885b9a0a0e, May 11 2016.

kernel/802_11: Add 'static' to some function definitions.

The declarations already have it, so just a cosmetic change.

kernel/wlan: Fix up the MAC address printing and add back __printflike()s.

In the recent wlan, iwn and ath upgrades, porting this properly was hacked
around by removing the __printflike()s because D

kernel/wlan: Fix up the MAC address printing and add back __printflike()s.

In the recent wlan, iwn and ath upgrades, porting this properly was hacked
around by removing the __printflike()s because DragonFly has no support
for %D (neither in GCC nor in kprintf()). This is wrong because even
though it silences the warning, it will still not print MAC addresses
correctly. So bring all that back.

Also update the wlan's README.DRAGONFLY with some information about how
to port this properly.

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kernel: Move us to using M_NOWAIT and M_WAITOK for mbuf functions.

The main reason is that our having to use the MB_WAIT and MB_DONTWAIT
flags was a recurring issue when porting drivers from FreeBSD

kernel: Move us to using M_NOWAIT and M_WAITOK for mbuf functions.

The main reason is that our having to use the MB_WAIT and MB_DONTWAIT
flags was a recurring issue when porting drivers from FreeBSD because
it tended to get forgotten and the code would compile anyway with the
wrong constants. And since MB_WAIT and MB_DONTWAIT ended up as ocflags
for an objcache_get() or objcache_reclaimlist call (which use M_WAITOK
and M_NOWAIT), it was just one big converting back and forth with some
sanitization in between.

This commit allows M_* again for the mbuf functions and keeps the
sanitizing as it was before: when M_WAITOK is among the passed flags,
objcache functions will be called with M_WAITOK and when it is absent,
they will be called with M_NOWAIT. All other flags are scrubbed by the
MB_OCFLAG() macro which does the same as the former MBTOM().

Approved-by: dillon

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kernel/wlan: Re-fix printf issues in debug messages.

wlan - Update wlan from Adrian / FreeBSD

* Update the wlan infrastructure, initially working with ath.

kernel/802_11: Put a couple more ethstr[] under IEEE80211_DEBUG.

kern - Utilize new way of printing MAC addresses.

kether_aton() function is being used to return a buffer
with the human readable notation of an ethernet address.

kernel: Remove NULL checks after kmalloc(..., M_INTWAIT).

M_INTWAIT will not return NULL unless M_NULLOK is passed too.

Remove empty DragonFly CVS IDs.

Initial import of binutils 2.22 on the new vendor branch

Future versions of binutils will also reside on this branch rather
than continuing to create new binutils branches for each new version.

wlan - Rip out all wlan locks part 2/2

* Add wlan_global_serializer and wlan_*() API calls.

* Use the calls at all border crossings.

* NOTE: callout_stop() may still have deadlock issues if it cat

wlan - Rip out all wlan locks part 2/2

* Add wlan_global_serializer and wlan_*() API calls.

* Use the calls at all border crossings.

* NOTE: callout_stop() may still have deadlock issues if it catches a
callout in-progress.

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wlan - Bring in some fixes from FreeBSD.

Fix remaining M_NOWAIT and use ieee80211_handoff instead of if_transmit.

Couple of changes to make this build without warnings:

o __DECONST second arg of lockinit() (XXX this is ugly)
o disable some DDB code while DB_SHOW_ALL_COMMAND isn't implemented.
o fix ether_sprint

Couple of changes to make this build without warnings:

o __DECONST second arg of lockinit() (XXX this is ugly)
o disable some DDB code while DB_SHOW_ALL_COMMAND isn't implemented.
o fix ether_sprintf again

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Sixth pass: remove all references to ether_sprintf().

Replace callout_drain with callout_stop.

Second pass at converting the net80211 to DragonFly.

First pass at converting the net80211 infrastrcture from FreeBSD.