linux-kernel - Re: [PATCH] fpga: dfl: afu: use PFN_DOWN() and PFN

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Message-ID: <2023061916-abacus-dipper-2238@gregkh>
Date:   Mon, 19 Jun 2023 15:46:29 +0200
From:   Greg KH <gregkh@...uxfoundation.org>
To:     Peter Colberg <peter.colberg@...el.com>
Cc:     hao.wu@...el.com, yilun.xu@...el.com, linux-fpga@...r.kernel.org,
        linux-kernel@...r.kernel.org, aaron.j.grier@...el.com,
        tianfei.zhang@...el.com, russell.h.weight@...el.com,
        matthew.gerlach@...ux.intel.com, marpagan@...hat.com,
        lgoncalv@...hat.com,
        Andy Shevchenko <andriy.shevchenko@...ux.intel.com>
Subject: Re: [PATCH] fpga: dfl: afu: use PFN_DOWN() and PFN_PHYS() helper
 macros

On Fri, Jun 16, 2023 at 06:42:09PM -0400, Peter Colberg wrote:
> Replace all shifts by PAGE_SHIFT with PFN_DOWN() and PFN_PHYS() helper
> macros to convert between physical addresses and page frame numbers.

Is this a bugfix, or just a cleanup?

thanks,

greg k-h