Re: [PATCH net-next 07/12] net: bcmgenet: clear status to reduce spurious interrupts

From	Florian Fainelli <f.fainelli@gmail.com>
Newsgroups	linux.kernel
Subject	Re: [PATCH net-next 07/12] net: bcmgenet: clear status to reduce spurious interrupts
Date	2017-03-14 02:00 +0100
Message-ID	<tkIYF-EG-5@gated-at.bofh.it> (permalink)
References	<tkIOZ-AW-3@gated-at.bofh.it> <tkIOZ-AW-11@gated-at.bofh.it>
Organization	linux.* mail to news gateway

Show all headers | View raw

On 03/13/2017 05:41 PM, Doug Berger wrote:
> 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>
-- 
Florian

Back to linux.kernel | Previous | Next — Previous in thread | Find similar | Unroll thread

Thread

[PATCH net-next 07/12] net: bcmgenet: clear status to reduce spurious interrupts Doug Berger <opendmb@gmail.com> - 2017-03-14 01:50 +0100
  Re: [PATCH net-next 07/12] net: bcmgenet: clear status to reduce  spurious interrupts Florian Fainelli <f.fainelli@gmail.com> - 2017-03-14 02:00 +0100

csiph-web