linux-kernel - Re: [PATCH] auxdisplay: fix broken menus

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Message-ID: <a0407810-b147-044e-e775-59440f92fede@infradead.org>
Date:   Fri, 22 Sep 2017 13:40:34 -0700
From:   Randy Dunlap <rdunlap@...radead.org>
To:     Geert Uytterhoeven <geert@...ux-m68k.org>
Cc:     LKML <linux-kernel@...r.kernel.org>,
        Linus Torvalds <torvalds@...ux-foundation.org>,
        Andrew Morton <akpm@...ux-foundation.org>,
        stable <stable@...r.kernel.org>,
        Miguel Ojeda Sandonis <miguel.ojeda.sandonis@...il.com>,
        Andy Shevchenko <andriy.shevchenko@...ux.intel.com>
Subject: Re: [PATCH] auxdisplay: fix broken menus

On 09/22/17 13:17, Geert Uytterhoeven wrote:
> Hi Randy,
> 
> On Fri, Sep 22, 2017 at 10:08 PM, Randy Dunlap <rdunlap@...radead.org> wrote:
>> On 09/22/17 12:46, Geert Uytterhoeven wrote:
>>> On Fri, Sep 22, 2017 at 8:23 PM, Randy Dunlap <rdunlap@...radead.org> wrote:
>>>> On 09/22/17 11:15, Geert Uytterhoeven wrote:
>>>>> On Fri, Sep 22, 2017 at 6:24 PM, Randy Dunlap <rdunlap@...radead.org> wrote:
>>>>>> From: Randy Dunlap <rdunlap@...radead.org>
>>>>>>
>>>>>> Having the CHARLCD Kconfig symbol between "menuconfig AUXDISPLAY"
>>>>>> and "if AUXDISPLAY" breaks the AUXDISPLAY submenus, so move the
>>>>>> CHARLCD Kconfig symbol above the "menuconfig" so that the menu
>>>>>> display is continuous.
>>>>>>
>>>>>> Fixes: 39f8ea46724e (auxdisplay: charlcd: Extract character LCD core from misc/panel)
>>>>>
>>>>> Oops, sorry for that.
>>>>>
>>>>>> Cc: stable@...r.kernel.org # v4.12
>>>>>> Cc: Geert Uytterhoeven <geert@...ux-m68k.org>
>>>>>> Cc: Miguel Ojeda Sandonis <miguel.ojeda.sandonis@...il.com>
>>>>>> Signed-off-by: Randy Dunlap <rdunlap@...radead.org>
>>>>>> ---
>>>>>>  drivers/auxdisplay/Kconfig |    6 +++---
>>>>>>  1 file changed, 3 insertions(+), 3 deletions(-)
>>>>>>
>>>>>> --- lnx-414-rc1.orig/drivers/auxdisplay/Kconfig
>>>>>> +++ lnx-414-rc1/drivers/auxdisplay/Kconfig
>>>>>> @@ -5,6 +5,9 @@
>>>>>>  # Auxiliary display drivers configuration.
>>>>>>  #
>>>>>>
>>>>>> +config CHARLCD
>>>>>> +       tristate "Character LCD core support" if COMPILE_TEST
>>>>>> +
>>>>>
>>>>> What about moving it inside (i.e. right below) the "if AUXDISPLAY" instead?
>>>>
>>>> That works.
>>>> But why?  PANEL also selects CHARLCD, so it isn't specific to AUXDISPLAY.
>>>
>>> OK, I thought PANEL was under AUXDISPLAY, but apparently it isn't.
>>> Perhaps it should be, just like ARM_CHARLCD?
>>> I.e. move everything inside the big if AUXDISPLAY block?
>>
>> ARM_CHARLCD does not depend on AUXDISPLAY either.
> 
> Technically it's an auxiliary display, AFAIK.

The commit seems to support your statement. Looks like we should put it inside
AUXDISPLAY then.

commit 00846a4425d373761c70cbe82cceb98d3d4da179
Author: Andy Shevchenko <andriy.shevchenko@...ux.intel.com>
Date:   Tue Apr 4 20:25:22 2017 +0300

    auxdisplay: Move arm-charlcd.c to drivers/auxdisplay folder
    
    It looks like arm-charlcd.c belongs to auxdisplay subsystem.

>> I wouldn't mind if all of them were inside the AUXDISPLAY if/endif
>> for menu cleanness, but AFAIK it's not necessary for code dependencies.
> 
> Indeed.
> 
>> I was just working on a separate patch to change PANEL from config to
>> menuconfig. That makes the PANEL sub-menu presentation cleaner.
> 
> OK. So let's make progress with your patch for now.
> 
> Acked-by: Geert Uytterhoeven <geert@...ux-m68k.org>
> 
> Gr{oetje,eeting}s,
> 
>                         Geert
> 
> --
> Geert Uytterhoeven -- There's lots of Linux beyond ia32 -- geert@...ux-m68k.org
> 
> In personal conversations with technical people, I call myself a hacker. But
> when I'm talking to journalists I just say "programmer" or something like that.
>                                 -- Linus Torvalds
> 


-- 
~Randy