linux-kernel - Re: [RFC PATCH 06/13] m68k: Drop ARCH_USES

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Date:   Mon, 12 Nov 2018 20:06:50 +1100 (AEDT)
From:   Finn Thain <fthain@...egraphics.com.au>
To:     Geert Uytterhoeven <geert@...ux-m68k.org>
cc:     Arnd Bergmann <arnd@...db.de>,
        Stephen N Chivers <schivers@....com.au>,
        Thomas Gleixner <tglx@...utronix.de>,
        Daniel Lezcano <daniel.lezcano@...aro.org>,
        John Stultz <john.stultz@...aro.org>,
        linux-m68k <linux-m68k@...ts.linux-m68k.org>,
        Linux Kernel Mailing List <linux-kernel@...r.kernel.org>,
        Philip Blundell <philb@....org>,
        Michael Schmitz <schmitzmic@...il.com>,
        Joshua Thompson <funaho@...ai.org>
Subject: Re: [RFC PATCH 06/13] m68k: Drop ARCH_USES_GETTIMEOFFSET

On Mon, 12 Nov 2018, Geert Uytterhoeven wrote:

> Hi Finn,
> 
> Thanks for your patch!
> 
> On Mon, Nov 12, 2018 at 5:46 AM Finn Thain <fthain@...egraphics.com.au> wrote:
> > The functions that implement arch_gettimeoffset are re-used by
> > new clocksource drivers in subsequent patches.
> 
> Disabling this first affects functionality during bisection, right?
> 

It means that all platforms have to use the 'jiffies' clocksource.

At the end of the series, only apollo, q40, sun3 & sun3x continue to use 
that clocksource.

> > --- a/arch/m68k/amiga/config.c
> > +++ b/arch/m68k/amiga/config.c
> > @@ -95,8 +95,6 @@ static char amiga_model_name[13] = "Amiga ";
> >  static void amiga_sched_init(irq_handler_t handler);
> >  static void amiga_get_model(char *model);
> >  static void amiga_get_hardware_list(struct seq_file *m);
> > -/* amiga specific timer functions */
> > -static u32 amiga_gettimeoffset(void);
> >  extern void amiga_mksound(unsigned int count, unsigned int ticks);
> >  static void amiga_reset(void);
> >  extern void amiga_init_sound(void);
> > @@ -386,7 +384,6 @@ void __init config_amiga(void)
> >         mach_init_IRQ        = amiga_init_IRQ;
> >         mach_get_model       = amiga_get_model;
> >         mach_get_hardware_list = amiga_get_hardware_list;
> > -       arch_gettimeoffset   = amiga_gettimeoffset;
> 
> In addition, won't this lead to "function defined statically but not 
> called' warnings?
> 

I expect so. I haven't compile-tested each step in the series; but I'll do 
that before I send v2. Thanks for the reminder.

There are no new warnings at the end of the series.

-- 

> Gr{oetje,eeting}s,
> 
>                         Geert
> 
>