[PATCH 2/2] nvme: Provide option to disable ASPT feature

[Keith Busch]

On Thu, Jul 27, 2017 at 01:28:20PM -0400, Andy Lutomirski wrote:
> 
> 
> > On Jul 27, 2017, at 12:58 PM, Keith Busch <keith.busch at intel.com> wrote:
> > 
> > Similar to PCIe's APSM, the NVMe driver needs the ability to not use APST
> > feature so that users have a way to prevent this feature from making their
> > machines unusable. This patch makes that possible via module parameter
> > "apst_off".
> 
> Isn't this redundant with default_ps_max_latency=0?

Ah, thanks, so it is. I thought this wasn't considered through
nvme_init_identify, but ctrl->ps_max_latency_us would be 0.

This patch isn't needed, but we still need patch 1 in this series.