linux-kernel - Re: net: macb: Fix compilation on systems without COMMON

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Date:   Wed, 26 Jun 2019 14:09:56 -0700 (PDT)
From:   David Miller <davem@...emloft.net>
To:     palmer@...ive.com
Cc:     nicolas.ferre@...rochip.com, harinik@...inx.com,
        netdev@...r.kernel.org, linux-kernel@...r.kernel.org
Subject: Re: net: macb: Fix compilation on systems without COMMON_CLK, v2

From: Palmer Dabbelt <palmer@...ive.com>
Date: Tue, 25 Jun 2019 01:48:26 -0700

> Our patch to add support for the FU540-C000 broke compilation on at
> least powerpc allyesconfig, which was found as part of the linux-next
> build regression tests.  This must have somehow slipped through the
> cracks, as the patch has been reverted in linux-next for a while now.
> This patch applies on top of the offending commit, which is the only one
> I've even tried it on as I'm not sure how this subsystem makes it to
> Linus.
> 
> This patch set fixes the issue by adding a dependency of COMMON_CLK to
> the MACB Kconfig entry, which avoids the build failure by disabling MACB
> on systems where it wouldn't compile.  All known users of MACB have
> COMMON_CLK, so this shouldn't cause any issues.  This is a significantly
> simpler approach than disabling just the FU540-C000 support.
> 
> I've also included a second patch to indicate this is a driver for a
> Cadence device that was originally written by an engineer at Atmel.  The
> only relation is that I stumbled across it when writing the first patch.
> 
> Changes since v1 <20190624061603.1704-1-palmer@...ive.com>:
> 
> * Disable MACB on systems without COMMON_CLK, instead of just disabling
>   the FU540-C000 support on these systems.
> * Update the commit message to reflect the driver was written by Atmel.

Series applied, thanks.