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authorSebastian Andrzej Siewior <bigeasy@linutronix.de>2014-03-25 17:34:20 (GMT)
committerScott Wood <scottwood@freescale.com>2014-05-14 18:38:01 (GMT)
commit89d80822ae4b0b98326e996db91e7ba26005531f (patch)
tree36ebdef32093c2db882965536cb0e160a0797575 /Documentation/CodingStyle
parentf91e24f2e03d5001aeaec1dda4d3dca9b23f6dff (diff)
downloadlinux-fsl-qoriq-89d80822ae4b0b98326e996db91e7ba26005531f.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>
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