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author | Sebastian Andrzej Siewior <bigeasy@linutronix.de> | 2014-03-25 17:34:20 (GMT) |
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committer | Scott Wood <scottwood@freescale.com> | 2015-02-13 22:20:22 (GMT) |
commit | 3db4152cc0cb16e62d4d8b07342998d1f5c37d3a (patch) | |
tree | b9884096ea7c5050cc63280310033e27dadb2cb2 /drivers/net/loopback.c | |
parent | 750fb468aae95be3c3afcb7183b5098d3a5054a6 (diff) | |
download | linux-fsl-qoriq-3db4152cc0cb16e62d4d8b07342998d1f5c37d3a.tar.xz |
net: gianfar: do not disable interrupts
each per-queue lock is taken with spin_lock_irqsave() except in the case
where all of them are taken for some kind of serialisation. As an
optimisation local_irq_save() is used so that lock_tx_qs() and
lock_rx_qs() can use just the spin_lock() variant instead.
On RT local_irq_save() behaves differently so we use the nort()
variant.
Lockdep screems easily by "ethtool -K eth0 rx off tx off"
What remains is missing lockdep annotation that makes lockdep think
lock_tx_qs() may cause a dead lock.
Cc: stable-rt@vger.kernel.org
Signed-off-by: Sebastian Andrzej Siewior <bigeasy@linutronix.de>
Diffstat (limited to 'drivers/net/loopback.c')
0 files changed, 0 insertions, 0 deletions