linux-kernel - Re: mips build failures due to commit 8dd928915a73 (mips: fix up obsolete cpu function usage)

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Date:	Mon, 20 Apr 2015 22:06:42 +0200
From:	Ralf Baechle <ralf@...ux-mips.org>
To:	Guenter Roeck <linux@...ck-us.net>
Cc:	linux-kernel@...r.kernel.org,
	Rusty Russell <rusty@...tcorp.com.au>,
	Florian Fainelli <f.fainelli@...il.com>,
	linux-mips@...ux-mips.org
Subject: Re: mips build failures due to commit 8dd928915a73 (mips: fix up
 obsolete cpu function usage)

On Mon, Apr 20, 2015 at 12:40:28PM -0700, Guenter Roeck wrote:

> the upstream kernel fails to build mips:nlm_xlp_defconfig,
> mips:nlm_xlp_defconfig, mips:cavium_octeon_defconfig, and possibly
> other targets, with errors such as
> 
> arch/mips/kernel/smp.c:211:2: error:
> 	passing argument 2 of 'cpumask_set_cpu' discards 'volatile' qualifier
> 	from pointer target type
> arch/mips/kernel/process.c:52:2: error:
> 	passing argument 2 of 'cpumask_test_cpu' discards 'volatile' qualifier
> 	from pointer target type
> arch/mips/cavium-octeon/smp.c:242:2: error:
> 	passing argument 2 of 'cpumask_clear_cpu' discards 'volatile' qualifier
> 	from pointer target type
> 
> The problem was introduced with commit 8dd928915a73 (" mips: fix up obsolete cpu
> function usage"). I would send a patch to fix it, but I am not sure if removing
> 'volatile' from the variable declaration(s) would be a good idea.
> 
> I don't recall seeing the problem in -next, but unless I am missing something,
> the patch never made it into -next to start with.

It was posted on March 2nd as part of a larger series.  Only this patch
9/16 was send to linux-mips and when I tested the patch it failed.  Back
then I blamed it on not having patches 1 to 8 in my test tree so I didn't
diver deeper into the issue and dropped the patch ...

  Ralf
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