linux-kernel - Re: [GIT PULL 1/4] ARM: SoC platform updates

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Date:   Thu, 16 May 2019 08:33:51 -0700
From:   Linus Torvalds <torvalds@...ux-foundation.org>
To:     Olof Johansson <olof@...om.net>,
        Linus Walleij <linus.walleij@...aro.org>
Cc:     ARM SoC <arm@...nel.org>,
        Linux List Kernel Mailing <linux-kernel@...r.kernel.org>,
        "linux-alpha@...r.kernel.org" <linux-arm-kernel@...ts.infradead.org>
Subject: Re: [GIT PULL 1/4] ARM: SoC platform updates

On Wed, May 15, 2019 at 11:43 PM Olof Johansson <olof@...om.net> wrote:
>
> SoC updates, mostly refactorings and cleanups of old legacy platforms.
> Major themes this release:

Hmm. This brings in a new warning:

  drivers/clocksource/timer-ixp4xx.c:78:20: warning:
‘ixp4xx_read_sched_clock’ defined but not used [-Wunused-function]

because that drivers is enabled for build testing, but that function
is only used under

  #ifdef CONFIG_ARM
        sched_clock_register(ixp4xx_read_sched_clock, 32, timer_freq);
  #endif

It's not clear why that #ifdef is there. This driver only builds
non-ARM when COMPILE_TEST is enabled, and that #ifdef actually breaks
that build test.

I'm going to remove that #ifdef in my merge, because I do *not* want
to see new warnings, and it doesn't seem to make any sense.

Maybe that's the wrong resolution, please holler and let me know if
you want something else.

                Linus