linux-kernel - Re: [PATCH 05/11] m68k/atari: Add missing platform check before registering platform devices

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Message-ID: <CAOmrzk+m2+GKOu+1nOJ2E1Aogx3Lj7vbUDHG5azK+A492MkDOw@mail.gmail.com>
Date:	Mon, 26 Mar 2012 07:53:50 +1300
From:	Michael Schmitz <schmitzmic@...glemail.com>
To:	Geert Uytterhoeven <geert@...ux-m68k.org>
Cc:	linux-m68k@...ts.linux-m68k.org, linux-kernel@...r.kernel.org
Subject: Re: [PATCH 05/11] m68k/atari: Add missing platform check before
 registering platform devices

Hi Geert,


>> How about this instead - probe for the EtherNAT config register, and
>> register devices only if found?
>
> That's even better, but logically, it's an extra change on top, so I'd like
> to keep it separate.

OK, I'll resend as soon as I've pulled your latest changes.

>> +    if (MACH_IS_ATARI) {
>
> I prefer the "if (!MACH_IS_ATARI) return -ENODEV;" at the top, as it
>  - means less code to change if more platform devices are added,
>  - means less source code to keep on your mental stack when reading the code,
>  - decreases indentation for the rest of the function.

OK; do you want the tests and platform calls conditional on config
options (we only need to have the platform data available if there's a
driver or module built to use it)?

Cheers,

  Michael
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