Re: linux-next: build failure after merge of the md tree

From: H. Peter Anvin
Date: Tue Apr 10 2012 - 23:54:55 EST


On 04/10/2012 08:42 PM, Stephen Rothwell wrote:
> Hi Neil,
>
> After merging the md tree, today's linux-next build (powerpc
> ppc64_defconfig) failed like this:
>
> lib/raid6/recov.c: In function 'raid6_has_ssse3':
> lib/raid6/recov.c:27:2: error: implicit declaration of function
> 'boot_cpu_has' [-Werror=implicit-function-declaration]
> lib/raid6/recov.c:27:22: error: 'X86_FEATURE_XMM' undeclared (first
> use in this function) lib/raid6/recov.c:27:22: note: each
> undeclared identifier is reported only once for each function it
> appears in lib/raid6/recov.c:28:16: error: 'X86_FEATURE_XMM2'
> undeclared (first use in this function) lib/raid6/recov.c:29:16:
> error: 'X86_FEATURE_SSSE3' undeclared (first use in this function)
> lib/raid6/recov.c: At top level: lib/raid6/recov.c:25:12: warning:
> 'raid6_has_ssse3' defined but not used [-Wunused-function]
>
> Caused by commit 56d3ac7ef905 ("lib/raid6: Add SSSE3 optimized
> recovery functions"). All the world is not X86 :-)
>
> I have used the md tree from next-20120410 for today.

While on the subject it would be nice to factor this out into a
separate file.

-hpa

--
H. Peter Anvin, Intel Open Source Technology Center
I work for Intel. I don't speak on their behalf.

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