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Subject: [Bug 201117] sysctl dev.ath.0.diversity causes a panic on the
 TL-WDR3600
Date: Sat, 04 Jul 2015 03:00:06 +0000
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https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=201117

--- Comment #1 from commit-hook@freebsd.org ---
A commit references this bug:

Author: adrian
Date: Sat Jul  4 02:59:31 UTC 2015
New revision: 285120
URL: https://svnweb.freebsd.org/changeset/base/285120

Log:
  Wake up the hardware before doing anything in sysctl.

  This stops the panics that occur on MIPS platforms when doing say,
  'sysctl dev.ath.0' whilst the MAC is asleep.  The MIPS platform is
  rather unforgiving in getting power-save register access wrong and you
  will get all kinds of odd failures if you don't have things woken
  up at the right times.

  Tested:

  * QCA9558 (TP-Link Archer C7 v2)
  * AR9331 (Carambola 2)

  .. with no VAPs configured and ath0 down (thus the MAC is definitely
     asleep.)

  PR:        kern/201117

Changes:
  head/sys/dev/ath/if_ath_sysctl.c

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