linux-kernel - Re: [PATCH v1 04/10] MIPS: Remove "weak" from platform_maar

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Message-ID: <CAErSpo4ZhxFxRT9=ww8F8bKkfQe5jQTtfSvw2XfxAPvHzArKTQ@mail.gmail.com>
Date:	Wed, 15 Oct 2014 17:27:35 -0600
From:	Bjorn Helgaas <bhelgaas@...gle.com>
To:	Jason Wessel <jason.wessel@...driver.com>,
	Ralf Baechle <ralf@...ux-mips.org>,
	Ingo Molnar <mingo@...hat.com>,
	John Stultz <john.stultz@...aro.org>,
	Eric Paris <eparis@...hat.com>,
	"H. Peter Anvin" <hpa@...or.com>,
	Thomas Gleixner <tglx@...utronix.de>,
	Andrew Morton <akpm@...ux-foundation.org>
Cc:	"linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
	"linux-mips@...ux-mips.org" <linux-mips@...ux-mips.org>
Subject: Re: [PATCH v1 04/10] MIPS: Remove "weak" from platform_maar_init() declaration

[+cc linux-mips]

On Wed, Oct 15, 2014 at 11:06 AM, Bjorn Helgaas <bhelgaas@...gle.com> wrote:
> arch/mips/mm/init.c provides a default platform_maar_init() definition
> explicitly marked "weak".  arch/mips/mti-malta/malta-memory.c provides its
> own definition intended to override the default, but the "weak" attribute
> on the declaration applied to this as well, so the linker chose one based
> on link order (see 10629d711ed7 ("PCI: Remove __weak annotation from
> pcibios_get_phb_of_node decl")).
>
> Remove the "weak" attribute from the declaration so we always prefer a
> non-weak definition over the weak one, independent of link order.
>
> Signed-off-by: Bjorn Helgaas <bhelgaas@...gle.com>
> CC: linux-mips@...ux-mips.org
> ---
>  arch/mips/include/asm/maar.h |    2 +-
>  1 file changed, 1 insertion(+), 1 deletion(-)
>
> diff --git a/arch/mips/include/asm/maar.h b/arch/mips/include/asm/maar.h
> index 6c62b0f899c0..b02891f9caaf 100644
> --- a/arch/mips/include/asm/maar.h
> +++ b/arch/mips/include/asm/maar.h
> @@ -26,7 +26,7 @@
>   *
>   * Return:     The number of MAAR pairs configured.
>   */
> -unsigned __weak platform_maar_init(unsigned num_pairs);
> +unsigned platform_maar_init(unsigned num_pairs);
>
>  /**
>   * write_maar_pair() - write to a pair of MAARs
>
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