From: Jack Morgenstein <jackm@dev.mellanox.co.il>
Date: Tue, 27 Nov 2012 16:24:29 +0000 (+0000)
Subject: IB/mlx4: Fix spinlock order to avoid lockdep warnings
X-Git-Tag: omap-for-v3.8/fixes-for-merge-window-v4-signed~23^2~2^3~1
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=ceb7decb366591e9b67d70832e07f5d240572a3d;p=pandora-kernel.git

IB/mlx4: Fix spinlock order to avoid lockdep warnings

lockdep warns about taking a hard-irq-unsafe lock (sriov->id_map_lock)
inside a hard-irq-safe lock (sriov->going_down_lock).

Since id_map_lock is never taken in the interrupt context, we can
simply reverse the order of taking the two spinlocks, thus avoiding
the warning and the depencency.

Signed-off-by: Jack Morgenstein <jackm@dev.mellanox.co.il>
Signed-off-by: Or Gerlitz <ogerlitz@mellanox.com>
Cc: <stable@vger.kernel.org>
Signed-off-by: Roland Dreier <roland@purestorage.com>
---

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