linux-kernel - Re: [PATCH v2 06/10] mmc: meson-mx-sdio: Depend on OF

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Date:   Wed, 22 Apr 2020 03:14:20 -0700
From:   Stephen Boyd <sboyd@...nel.org>
To:     Ulf Hansson <ulf.hansson@...aro.org>
Cc:     Michael Turquette <mturquette@...libre.com>,
        Linux Kernel Mailing List <linux-kernel@...r.kernel.org>,
        linux-clk <linux-clk@...r.kernel.org>,
        kbuild test robot <lkp@...el.com>,
        Neil Armstrong <narmstrong@...libre.com>
Subject: Re: [PATCH v2 06/10] mmc: meson-mx-sdio: Depend on OF_ADDRESS and not just OF

Quoting Ulf Hansson (2020-04-21 07:04:54)
> On Thu, 9 Apr 2020 at 08:44, Stephen Boyd <sboyd@...nel.org> wrote:
> >
> > Making COMMON_CLK a visible option causes the sparc allyesconfig to fail
> > to build like so:
> >
> >    sparc64-linux-ld: drivers/mmc/host/meson-mx-sdio.o: in function `meson_mx_mmc_remove':
> >    meson-mx-sdio.c:(.text+0x70): undefined reference to `of_platform_device_destroy'
> >    sparc64-linux-ld: drivers/mmc/host/meson-mx-sdio.o: in function `meson_mx_mmc_probe':
> >    meson-mx-sdio.c:(.text+0x9e4): undefined reference to `of_platform_device_create'
> >    sparc64-linux-ld: meson-mx-sdio.c:(.text+0xdd4): undefined reference to `of_platform_device_destroy'
> >
> > This is because the implementation of of_platform_device_destroy() is
> > inside an #ifdef CONFIG_OF_ADDRESS section of drivers/of/platform.c.
> > This driver already depends on OF being enabled, so let's tighten that
> > constrain a little more so that it depends on OF_ADDRESS instead. This
> > way we won't try to build this driver on platforms that don't have this
> > function.
> >
> > Reported-by: kbuild test robot <lkp@...el.com>
> > Cc: Neil Armstrong <narmstrong@...libre.com>
> > Cc: Ulf Hansson <ulf.hansson@...aro.org>
> > Signed-off-by: Stephen Boyd <sboyd@...nel.org>
> 
> I don't have the complete picture here, can I just apply this a fix to
> my mmc tree?
> 

If this patch stays in the series then I can avoid a bisection hole. And
it also doesn't matter until COMMON_CLK config becomes selectable. Maybe
just ack and let it go through clk tree? Unless there's something
changing here in the mmc tree?