From 9b84b80891e5e25ae21c855bb135b05274125a29 Mon Sep 17 00:00:00 2001
From: Javier Cardona <javier@cozybit.com>
Date: Tue, 3 May 2011 16:57:16 -0700
Subject: [PATCH] mac80211: Fix locking bug on mesh path table access

The mesh and mpp path tables are accessed from softirq and workqueue
context so non-irq locking cannot be used.  Or at least that's what
PROVE_RCU seems to tell us here:

[  431.240946] =================================
[  431.241061] [ INFO: inconsistent lock state ]
[  431.241061] 2.6.39-rc3-wl+ #354
[  431.241061] ---------------------------------
[  431.241061] inconsistent {IN-SOFTIRQ-W} -> {SOFTIRQ-ON-W} usage.
[  431.241061] kworker/u:1/1423 [HC0[0]:SC0[0]:HE1:SE1] takes:
[  431.241061]  (&(&newtbl->hashwlock[i])->rlock){+.?...}, at:
[<c14671bf>] mesh_path_add+0x167/0x257

Signed-off-by: Javier Cardona <javier@cozybit.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
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