net: bcmgenet: clear status to reduce spurious interrupts

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Since the DMA interrupt status is latched and the DMA servicing can be
polled, it is a good idea to clear the latched status of a DMA interrupt
before performing the service that would be invoked by the interrupt.

This prevents old status from causing spurious interrupts when the
interrupt is unmasked at a later time.

Signed-off-by: Doug Berger <opendmb@gmail.com>
Reviewed-by: Florian Fainelli <f.fainelli@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

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Doug Berger 2017-03-13 17:41:37 -07:00 • committed by David S. Miller

parent b1ec494dee

commit d5810ca325

1 changed files with 20 additions and 1 deletions

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drivers/net/ethernet/broadcom/genet/bcmgenet.c

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