Re: [PATCH v6 4/5] dmaengine: idxd: Clean up descriptors with fault error

[Vinod Koul]

On 04-10-20, 21:55, Dave Jiang wrote:
> > > +static bool process_fault(struct idxd_desc *desc, u64 fault_addr)
> > > +{
> > > +	if ((u64)desc->hw == fault_addr ||
> > > +	    (u64)desc->completion == fault_addr) {
> > 
> > you are casting descriptor address and completion, I can understand
> > former, but later..? Can you explain this please
> > 
> 
> It is possible to fail on the completion writeback address if the completion
> address programmed into the descriptor is bad.

Okay thanks for clarifying, maybe would help to add a comment.

-- 
~Vinod