linux-kernel - Re: [PATCH v2 3/3] ata: ahci_platform: Make code agnostic to OF/ACPI

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [<thread-prev] [thread-next>] [day] [month] [year] [list]

Date:   Mon, 12 Jun 2023 18:19:22 +0300
From:   Andy Shevchenko <andriy.shevchenko@...ux.intel.com>
To:     Sakari Ailus <sakari.ailus@...ux.intel.com>
Cc:     Damien Le Moal <dlemoal@...nel.org>,
        Serge Semin <Sergey.Semin@...kalelectronics.ru>,
        Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
        linux-ide@...r.kernel.org, linux-kernel@...r.kernel.org,
        linux-acpi@...r.kernel.org, Hans de Goede <hdegoede@...hat.com>,
        Jens Axboe <axboe@...nel.dk>,
        "Rafael J. Wysocki" <rafael@...nel.org>,
        Len Brown <lenb@...nel.org>,
        Daniel Scally <djrscally@...il.com>,
        Heikki Krogerus <heikki.krogerus@...ux.intel.com>
Subject: Re: [PATCH v2 3/3] ata: ahci_platform: Make code agnostic to OF/ACPI

On Mon, Jun 12, 2023 at 09:06:52AM +0000, Sakari Ailus wrote:
> On Fri, Jun 09, 2023 at 06:49:00PM +0300, Andy Shevchenko wrote:

...

> > -	if (of_device_is_compatible(dev->of_node, "hisilicon,hisi-ahci"))
> > +	if (device_is_compatible(dev, "hisilicon,hisi-ahci"))
> >  		hpriv->flags |= AHCI_HFLAG_NO_FBS | AHCI_HFLAG_NO_NCQ;
> >  
> > -	port = acpi_device_get_match_data(dev);
> > +	port = device_get_match_data(dev);
> 
> There are just a handful of users for acpi_device_get_match_data() in the
> tree. The code could be moved to acpi_fwnode_device_get_match_data() after
> coverting these. May be out of scope of this set though.

Why do we need that one if we can use device_get_match_data() directly?
It will be also flexible in case one of OF code will need something like
this (custom info structure for the respective compatible string).
That said, I don't think we need to change to acpi_*() whatever.

-- 
With Best Regards,
Andy Shevchenko