linux-kernel - Re: [PATCH linux-next] i2c-designware: use div

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Message-ID: <CAGa+x859XVrV3r_XAMREkUgQEdjNJ5Z+0E8ZQfPqfb+1e3SLaw@mail.gmail.com>
Date:	Tue, 2 Jul 2013 14:12:39 -0700
From:	Kevin Hilman <khilman@...aro.org>
To:	Vincent Stehlé <vincent.stehle@...escale.com>
Cc:	linux-next@...r.kernel.org, LKML <linux-kernel@...r.kernel.org>,
	linux-i2c@...r.kernel.org, Wolfram Sang <wsa@...-dreams.de>,
	Christian Ruppert <christian.ruppert@...lis.com>,
	Pierrick Hascoet <pierrick.hascoet@...lis.com>
Subject: Re: [PATCH linux-next] i2c-designware: use div_u64 to fix link

On Tue, Jul 2, 2013 at 2:46 AM, Vincent Stehlé
<vincent.stehle@...escale.com> wrote:
> This fixes the following link error:
>
>   drivers/built-in.o: In function `dw_i2c_probe':
>   of_iommu.c:(.text+0x18c8f0): undefined reference to `__aeabi_uldivmod'
>   make: *** [vmlinux] Error 1
>
> Signed-off-by: Vincent Stehlé <vincent.stehle@...escale.com>
> Cc: Wolfram Sang <wsa@...-dreams.de>
> Cc: Christian Ruppert <christian.ruppert@...lis.com>
> Cc: Pierrick Hascoet <pierrick.hascoet@...lis.com>
> ---
>
>
> Hi,
>
> Linux next-20130702 link broke for ARM config multi_v7_defconfig. This is with
> gcc 4.7.2 but I am not sure it matters much here.
>
> This patch repairs the link.
>
> It did not break anything for me on i.MX6 sabre sd, but it does'nt have a
> designware i2c, so more reviewing/testing is welcome.

This also broke a handful of other ARM defconfigs (notably spear*_defconfig,)

I build tested this on top of next-20130702 for multi_v7_defconfig as
well as all 3 spear defconfigs, and confirm that linux-next is back to
building for those platforms.

Tested-by: Kevin Hilman <khilman@...aro.org.

Kevin
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