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

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Date:   Fri, 22 Sep 2017 21:46:45 +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 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?

>>>  menuconfig AUXDISPLAY
>>>         bool "Auxiliary Display support"
>>>         ---help---
>>> @@ -13,9 +16,6 @@ menuconfig AUXDISPLAY
>>>
>>>           If you say N, all options in this submenu will be skipped and disabled.
>>>
>>> -config CHARLCD
>>> -       tristate "Character LCD core support" if COMPILE_TEST
>>> -
>>>  if AUXDISPLAY
>>>
>>>  config HD44780

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