linux-kernel - Re: [RFC PATCH] m68k: set dma and coherent masks for Macintosh SONIC based ethernet

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Message-ID: <016dfee5-5fca-548e-32df-f2e4ab8a5e41@linux-m68k.org>
Date:   Thu, 31 May 2018 10:38:48 +1000
From:   Greg Ungerer <gerg@...ux-m68k.org>
To:     Geert Uytterhoeven <geert@...ux-m68k.org>
Cc:     Finn Thain <fthain@...egraphics.com.au>,
        Christoph Hellwig <hch@....de>,
        Michael Schmitz <schmitzmic@...il.com>,
        Guenter Roeck <linux@...ck-us.net>,
        Joshua Thompson <funaho@...ai.org>,
        linux-m68k <linux-m68k@...ts.linux-m68k.org>,
        Linux Kernel Mailing List <linux-kernel@...r.kernel.org>
Subject: Re: [RFC PATCH] m68k: set dma and coherent masks for Macintosh SONIC
 based ethernet

Hi Geert,

On 31/05/18 05:55, Geert Uytterhoeven wrote:
> On Wed, May 30, 2018 at 2:28 AM, Greg Ungerer <gerg@...ux-m68k.org> wrote:
>> On 28/05/18 20:15, Geert Uytterhoeven wrote:
>>> On Mon, May 28, 2018 at 7:26 AM, Finn Thain <fthain@...egraphics.com.au>
>>> wrote:
>>>> On Mon, 28 May 2018, Michael Schmitz wrote:
>>>>> Am 27.05.2018 um 17:49 schrieb Finn Thain:
>>>>>> On Sun, 27 May 2018, Michael Schmitz wrote:
>>>>>>> That should have fixed the warning already ...
>>>>>>
>>>>>> It's still not fixed (hence my "acked-by" for Geunter's patch).
>>>>>
>>>>> Odd - does link order still matter even though the
>>>>> arch_setup_dev_archdata() function from the core platform code is
>>>>> declared as a weak symbol?
>>>>>
>>>>> I'll see what I can find out on elgar ...
>>>>
>>>> Any one of the numerous patches/rfcs/suggestions that I sent will avoid
>>>> the WARN splat.
>>>>
>>>> When I said "it's still not fixed", what I meant to say was, "it's still
>>>> not fixed in mainline and no proposed fix was accepted to the best of my
>>>> knowledge".
>>>
>>> Indeed.
>>>
>>> Do we have a consensus on the way forward? The merge window for
>>> v4.18 will open soon.
>>
>> For whatever it is worth I thought Finn's patch was the best approach
>> (https://lkml.org/lkml/2018/5/17/333, "m68k: Set default dma mask for
>> platform device").
> 
> FTR: done.

Feel free to add my acked by if you like:

Acked-by: Greg Ungerer <gerg@...ux-m68k.org>

Regards
Greg


>> We seem to be hitting quite a few places (within m68k) that otherwise
>> need individual fixes. There is no immediate need to revert existing
>> changes that have already been applied if we use this now either
>> (like my FEC fix, commit f61e64310b75 "m68k: set dma and coherent
>> masks for platform FEC ethernets").
> 
> Indeed.
> 
> Gr{oetje,eeting}s,
> 
>                          Geert
>