linux-kernel - Re: [PATCH] pata_falcon: Add missing _

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Date:   Fri, 26 Nov 2021 09:36:56 +1100 (AEDT)
From:   Finn Thain <fthain@...ux-m68k.org>
To:     Geert Uytterhoeven <geert@...ux-m68k.org>
cc:     Damien Le Moal <damien.lemoal@...nsource.wdc.com>,
        Michael Schmitz <schmitzmic@...il.com>,
        Bartlomiej Zolnierkiewicz <b.zolnierkie@...sung.com>,
        Jens Axboe <axboe@...nel.dk>, linux-ide@...r.kernel.org,
        Linux Kernel Mailing List <linux-kernel@...r.kernel.org>
Subject: Re: [PATCH] pata_falcon: Add missing __iomem annotations

On Thu, 25 Nov 2021, Geert Uytterhoeven wrote:

> 
> Yeah, you do have to be careful with macros that derive a size from the 
> type of the passed data.  The *{in,out}sw() functions do not suffer from 
> that: they are defined to operate on a 16-bit I/O register. It is very 
> unlikely these semantics will ever change.
> 
> Here I'm more worried about the other danger: keeping casts will silence 
> any warning that may be introduced in a future change to the driver 
> code.
> 

Fair enough. I'll send v2.