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Date: Thu, 26 Nov 2015 09:58:18 +1100
From: Anton Blanchard <anton@au1.ibm.com>
To: Torsten Duwe <duwe@lst.de>
Cc: Ian Munsie <imunsie@au1.ibm.com>, Michael Ellerman <michaele@au1.ibm.com>,
 linuxppc-dev <linuxppc-dev@ozlabs.org>, Michael Neuling <mikey@neuling.org>
Subject: Re: [PATCH] cxl: Fix build failure due to -Wunused-variable
 behaviour change
Message-ID: <20151126095818.1e394395@kryten>
In-Reply-To: <20151125161616.GA30262@lst.de>
References: <1442296114-16796-1-git-send-email-imunsie@au.ibm.com>
 <20151125161616.GA30262@lst.de>
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Hi Torsten,

> > -ccflags-y := -Werror
> > +ccflags-y := -Werror -Wno-unused-const-variable
> 
> JFYI, my gcc-4.3 does not like this switch.
> What's the minimum compiler version to build this code?

-Werror is such a moving target. I'm also seeing issues when building
with clang, eg:

drivers/misc/cxl/native.c:223:20: warning: unused function
'detach_spa' [-Wunused-function]

Anton