linux-kernel - Re: sparc64: Build failure due to commit f1600e549b94 (sparc: Make sparc64 use scalable lib/iommu-common.c functions)

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Date:	Mon, 20 Apr 2015 12:25:19 -0400 (EDT)
From:	David Miller <davem@...emloft.net>
To:	linux@...ck-us.net
Cc:	mpe@...erman.id.au, sowmini.varadhan@...cle.com,
	benh@...nel.crashing.org, aik@....ibm.com, anton@....ibm.com,
	paulus@...ba.org, linuxppc-dev@...ts.ozlabs.org,
	sparclinux@...r.kernel.org, linux-kernel@...r.kernel.org
Subject: Re: sparc64: Build failure due to commit f1600e549b94 (sparc: Make
 sparc64 use scalable lib/iommu-common.c functions)

From: Guenter Roeck <linux@...ck-us.net>
Date: Sun, 19 Apr 2015 22:17:21 -0700

> The debug option is intended for all _other_ architectures, to
> ensure that changes made for those don't break alpha/s390
> builds. alpha/s390 have ARCH_NEEDS_WEAK_PER_CPU and don't need the
> debug option.

Ironically this would not create a build failure for the architectures
where this matters, because only powerpc has the like named percpu
symbol.

So it's not really meeting the stated objective in this case.
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