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

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Message-ID: <CAMuHMdUfFL-MjZKtUkXVO_86Zy6pxXwPEGruXFZPGoZ6yYx1yg@mail.gmail.com>
Date:   Fri, 22 Sep 2017 22:17:27 +0200
From:   Geert Uytterhoeven <geert@...ux-m68k.org>
To:     Randy Dunlap <rdunlap@...radead.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>
Subject: Re: [PATCH] auxdisplay: fix broken menus

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.

> 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