Re: [PATCH V4 05/10] dmaengine: qcom_hidma: make pending_tre_count atomic

From: Vinod Koul
Date: Sun Oct 02 2016 - 23:31:00 EST

On Sat, Oct 01, 2016 at 11:19:43AM -0400, Sinan Kaya wrote:
> On 10/1/2016 2:19 AM, Vinod Koul wrote:
> >> Making it atomic so that it can be updated from multiple contexts.
> > How is it multiple contexts? It's either existing context of MSI, not both!
> >
> I was trying to mean multiple processor contexts here. The driver allocates 11
> MSI interrupts. Each MSI interrupt can be assigned to a different CPU. Then,
> we have a race condition for common variables as they share the same interrupt
> handler with a different cause bit.
> I will put the above description into the commit text.

Sounds better :)