Re: [PATCH] fix mv643xx_eth.c lockdep violation

From: Russell King - ARM Linux <redacted>
Date: Thu, 16 May 2013 17:31:42 +0100

From: Russell King <redacted>
Subject: [PATCH] NET: mv643xx_eth: avoid lockdep dump on interface down

When the interface is shutdown, the mv643xx_eth driver hits the following
lockdep dump:

 ...

It seems that txq_reclaim() takes the netif tx lock:

        __netif_tx_lock(nq, smp_processor_id());

in a context outside of softirq context, and thus is susceptible to
deadlock should an interrupt occur.

Use __netif_tx_lock_bh()/__netif_tx_unlock_bh() instead.

Signed-off-by: Russell King <redacted>

Applied, thanks.