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SubjectRe: [PATCH v3] char/rtc: replace blacklist with whitelist
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On Wed, Apr 27, 2016 at 9:45 PM, Arnd Bergmann <arnd@arndb.de> wrote:
> Every new architecture has to add itself to the growing list of those
> that do not support the legacy PC RTC driver.
>
> This replaces the long list of architectures that don't support it
> with a shorter list of those that do.
>
> The list is taken from those architectures that have a non-empty
> asm/mc146818rtc.h header file and were not explicitly blacklisted
> or select RTC_LIB.
>
> Alpha and Loongson64 can already choose between this driver and
> an rtc-class based one. mn10300 is actually the only architecture
> now that still requires this driver, and that should be fairly
> easy to change to use rtc-cmos if we want to kill off rtc.ko
> for good.
>
> Signed-off-by: Arnd Bergmann <arnd@arndb.de>
> Acked-by: Alexandre Belloni <alexandre.belloni@free-electrons.com>

Acked-by: Geert Uytterhoeven <geert@linux-m68k.org>

> --- a/drivers/char/Kconfig
> +++ b/drivers/char/Kconfig
> @@ -279,8 +279,7 @@ if RTC_LIB=n
>
> config RTC
> tristate "Enhanced Real Time Clock Support (legacy PC RTC driver)"
> - depends on !PPC && !PARISC && !IA64 && !M68K && !SPARC && !FRV \
> - && !ARM && !SUPERH && !S390 && !AVR32 && !BLACKFIN && !UML
> + depends on ALPHA || (MIPS && MACH_LOONGSON64) || MN10300

Minor nit: MACH_LOONGSON64 implies MIPS, so I think you can drop the latter.

Gr{oetje,eeting}s,

Geert

--
Geert Uytterhoeven -- There's lots of Linux beyond ia32 -- geert@linux-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

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