linux-kernel - Re: [PATCH 1/2] PCI/AER: Disable AER when link is in L2/L3 ready, L2 and L3 state

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Message-ID: <YfI9L01LI/0rZIuP@lahna>
Date:   Thu, 27 Jan 2022 08:35:27 +0200
From:   Mika Westerberg <mika.westerberg@...ux.intel.com>
To:     Kai-Heng Feng <kai.heng.feng@...onical.com>
Cc:     bhelgaas@...gle.com, koba.ko@...onical.com,
        Russell Currey <ruscur@...sell.cc>,
        Oliver O'Halloran <oohall@...il.com>,
        Lalithambika Krishnakumar <lalithambika.krishnakumar@...el.com>,
        Joerg Roedel <jroedel@...e.de>,
        Lu Baolu <baolu.lu@...ux.intel.com>,
        linuxppc-dev@...ts.ozlabs.org, linux-pci@...r.kernel.org,
        linux-kernel@...r.kernel.org
Subject: Re: [PATCH 1/2] PCI/AER: Disable AER when link is in L2/L3 ready, L2
 and L3 state

On Thu, Jan 27, 2022 at 08:29:22AM +0200, Mika Westerberg wrote:
> > For example, should we convert commit a697f072f5da8 ("PCI: Disable PTM
> > during suspend to save power") to PM hooks in PTM service?
> 
> Yes, I think that's the right thing to do. I wonder how it was not using
> the PM hooks in the first place.

Actually no. The reason it is not using PM hooks is that PTM is not a
port "service" so it needs to be dealt in the core.