linux-kernel - Re: [PATCH] drivers/tty/serial: Remove unused function early_mcf

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Date: Tue, 20 Feb 2024 23:55:48 +1000
From: Greg Ungerer <gerg@...ux-m68k.org>
To: Geert Uytterhoeven <geert@...ux-m68k.org>,
 Jiri Slaby <jirislaby@...nel.org>
Cc: Thomas Huth <thuth@...hat.com>, linux-m68k@...ts.linux-m68k.org,
 Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
 linux-kernel@...r.kernel.org, linux-serial@...r.kernel.org
Subject: Re: [PATCH] drivers/tty/serial: Remove unused function
 early_mcf_setup


On 20/2/24 20:23, Geert Uytterhoeven wrote:
> On Tue, Feb 20, 2024 at 6:11 AM Jiri Slaby <jirislaby@...nel.org> wrote:
>> On 19. 02. 24, 17:40, Thomas Huth wrote:
>>> Compiling a kernel for the ColdFire causes a compiler warning:
>>>
>>> drivers/tty/serial/mcf.c:473:12: warning: no previous prototype for
>>>    ‘early_mcf_setup’ [-Wmissing-prototypes]
>>>     473 | int __init early_mcf_setup(struct mcf_platform_uart *platp)
>>>         |            ^~~~~~~~~~~~~~~
>>>
>>> This function seems to be completely unused, so let's remove it
>>> to silence the warning.
>>
>> And it seems so since the driver addition in 2007 by:
>> commit 49aa49bfd40d718095669c1c70c9d167b814e29b
>> Author: Greg Ungerer <gerg@...pgear.com>
>> Date:   Tue Oct 23 14:37:54 2007 +1000
>>
>>       m68knommu: new style ColdFire UART driver
> 
> Indeed.
> 
> Looks like the "changes to the ColdFire based m68knommu systems
> to use a platform model at init, and this is used there" from [1]
> never materialized on any public mailing list?
> 
> Greg: does it still make sense to add them?

No, it never really turned out to be useful enough to anyone,
so I never really pushed it out or progressed it any further.

So I am fine with removing this now:

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

I can take it via the m68knommu git tree if no one else wants to
pick it up.

Regards
Greg



> If not:
> Reviewed-by: Geert Uytterhoeven <geert@...ux-m68k.org>
> 
> [1] https://lore.kernel.org/all/47254BEB.2040609@snapgear.com/
> 
> Gr{oetje,eeting}s,
> 
>                          Geert
>