linux-kernel - Re: [PATCH v15 06/19] leds: lp50xx: Add the LP50XX family of the RGB LED driver

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Message-ID: <b50fa8f6-1a27-ad22-d4a7-37bc07fc6768@gmail.com>
Date:   Wed, 30 Oct 2019 21:50:17 +0100
From:   Jacek Anaszewski <jacek.anaszewski@...il.com>
To:     Dan Murphy <dmurphy@...com>, kbuild test robot <lkp@...el.com>
Cc:     kbuild-all@...ts.01.org, pavel@....cz, linux-leds@...r.kernel.org,
        linux-kernel@...r.kernel.org
Subject: Re: [PATCH v15 06/19] leds: lp50xx: Add the LP50XX family of the RGB
 LED driver

Dan,

On 10/30/19 9:23 PM, Dan Murphy wrote:
> Jacek
> 
> 
>>> Does not appear here
>>>
>>> Finally not sure why the MIPS compiler is complaining about this but the
>>> ARM and x86 is not
>> Compilation breaks also for ARM.
> 
> Thanks for the information.
> 
> I am not seeing this issue or even a warning when using the ARM 8.3
> toolchain even in a clean build.
> 
> arm-linux-gnueabihf-gcc (GNU Toolchain for the A-profile Architecture
> 8.3-2019.03 (arm-rel-8.36)) 8.3.0
> 
> So is a bug in this toolchain?

>From what I've just googled C specification allows for a compiler
implementation to accept also other forms of constants expressions
than standard ones pointed out in the spec.

So this is not necessarily a bug.

-- 
Best regards,
Jacek Anaszewski