linux-kernel - Re: [PATCH v3 13/28] scsi: hisi_sas_v3

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Message-ID: <6115b301-680b-fb22-ae9e-2dea13b47536@huawei.com>
Date:   Tue, 27 Oct 2020 17:11:52 +0000
From:   John Garry <john.garry@...wei.com>
To:     Vaibhav Gupta <vaibhavgupta40@...il.com>,
        Bjorn Helgaas <helgaas@...nel.org>,
        Bjorn Helgaas <bhelgaas@...gle.com>,
        Bjorn Helgaas <bjorn@...gaas.com>,
        Vaibhav Gupta <vaibhav.varodek@...il.com>,
        Adam Radford <aradford@...il.com>,
        "James E.J. Bottomley" <jejb@...ux.ibm.com>,
        "Martin K. Petersen" <martin.petersen@...cle.com>,
        Adaptec OEM Raid Solutions <aacraid@...rosemi.com>,
        Hannes Reinecke <hare@...e.com>,
        Bradley Grove <linuxdrivers@...otech.com>,
        Don Brace <don.brace@...rosemi.com>,
        James Smart <james.smart@...adcom.com>,
        Dick Kennedy <dick.kennedy@...adcom.com>,
        Kashyap Desai <kashyap.desai@...adcom.com>,
        Sumit Saxena <sumit.saxena@...adcom.com>,
        Shivasharan S <shivasharan.srikanteshwara@...adcom.com>,
        Sathya Prakash <sathya.prakash@...adcom.com>,
        Sreekanth Reddy <sreekanth.reddy@...adcom.com>,
        Suganath Prabu Subramani 
        <suganath-prabu.subramani@...adcom.com>,
        Jack Wang <jinpu.wang@...ud.ionos.com>
CC:     Shuah Khan <skhan@...uxfoundation.org>,
        <linux-kernel@...r.kernel.org>,
        <linux-kernel-mentees@...ts.linuxfoundation.org>,
        <linux-scsi@...r.kernel.org>, <esc.storagedev@...rosemi.com>,
        <megaraidlinux.pdl@...adcom.com>,
        <MPT-FusionLinux.pdl@...adcom.com>,
        chenxiang <chenxiang66@...ilicon.com>
Subject: Re: [PATCH v3 13/28] scsi: hisi_sas_v3_hw: use generic power
 management

On 01/10/2020 13:24, Vaibhav Gupta wrote:
> Drivers should do only device-specific jobs. But in general, drivers using
> legacy PCI PM framework for .suspend()/.resume() have to manage many PCI
> PM-related tasks themselves which can be done by PCI Core itself. This
> brings extra load on the driver and it directly calls PCI helper functions
> to handle them.
> 
> Switch to the new generic framework by updating function signatures and
> define a "struct dev_pm_ops" variable to bind PM callbacks. Also, remove
> unnecessary calls to the PCI Helper functions along with the legacy
> .suspend & .resume bindings.
> 
> Signed-off-by: Vaibhav Gupta <vaibhavgupta40@...il.com>
> ---
Hi Vaibhav,

Can you please consider rebasing this series? This driver has had many 
changes in the area of PM for v5.10-rc1

Also please note that my colleague provided a reviewed-by tag for v2, 
so, if no big significant changes from v2->v3, please add that tag. 
Obviously, in light of what I say about recent changes, that is not 
applicable now, but just for future reference.

Thanks,
John