linux-kernel - Re: [PATCH v3] ata: use generic power management

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Date:   Mon, 17 Aug 2020 14:55:11 +0530
From:   Vaibhav Gupta <vaibhavgupta40@...il.com>
To:     Bjorn Helgaas <helgaas@...nel.org>,
        Bjorn Helgaas <bhelgaas@...gle.com>,
        Bjorn Helgaas <bjorn@...gaas.com>,
        Vaibhav Gupta <vaibhav.varodek@...il.com>,
        Jens Axboe <axboe@...nel.dk>,
        Bartlomiej Zolnierkiewicz <b.zolnierkie@...sung.com>,
        Kai-Heng Feng <kai.heng.feng@...onical.com>,
        Christoph Hellwig <hch@....de>,
        "Gustavo A . R . Silva" <gustavoars@...nel.org>,
        Hans de Goede <hdegoede@...hat.com>,
        Mauro Carvalho Chehab <mchehab@...nel.org>,
        Prabhakar Kushwaha <pkushwaha@...vell.com>,
        Alex Shi <alex.shi@...ux.alibaba.com>,
        Michał Mirosław <mirq-linux@...e.qmqm.pl>,
        Thomas Gleixner <tglx@...utronix.de>,
        Jiri Slaby <jslaby@...e.cz>,
        Sascha Hauer <s.hauer@...gutronix.de>,
        Paul Gortmaker <paul.gortmaker@...driver.com>,
        Jia-Ju Bai <baijiaju1990@...il.com>,
        Javier Martinez Canillas <javier@....samsung.com>,
        Zhang Rui <rui.zhang@...el.com>
Cc:     linux-ide@...r.kernel.org, linux-kernel@...r.kernel.org,
        linux-kernel-mentees@...ts.linuxfoundation.org,
        Shuah Khan <skhan@...uxfoundation.org>
Subject: Re: [PATCH v3] ata: use generic power management

Hello,

I am working to upgrade power management framework support for PCI drivers, as
my project under the Linux Kernel Mentorship Program.

The ultimate goal is to completely remove the legacy framework. And for this we
need to remove ".suspend" and ".resume" pointers from "struct pci_driver".

The patch is doing the change for the same. The actual suspend() and
resume() callbacks are defined in drivers/ata/libata-core.c and are exported.
Which are then used by other files.

Thus removing those pointers, included 54 files in this patch. Although, the
actual changes are done in few files only. The changes should work fine as I
have done similar changes for other drivers too which made their way into the
kernel. Still, tests on few ata devices are necessary.

I tried but unfortunately, I couldn't find or arrange devices to test upon. I
have added the authors of the previous commit(s) for respective drivers as
recipients. It would be very helpful if someone can test it on a device.

Thanks
Vaibhav Gupta