* Re: [kvm:master 11/11] ERROR: "zero_pfn" [arch/powerpc/kvm/kvm.ko] undefined!
[not found] <54132c79.gO9ZtzE1hCCwPdyq%fengguang.wu@intel.com>
@ 2014-09-12 19:44 ` Ard Biesheuvel
0 siblings, 0 replies; only message in thread
From: Ard Biesheuvel @ 2014-09-12 19:44 UTC (permalink / raw)
To: Paolo Bonzini, Christoffer Dall, kvm
On 12 September 2014 19:25, kbuild test robot <fengguang.wu@intel.com> wrote:
> tree: git://git.kernel.org/pub/scm/virt/kvm/kvm.git master
> head: e20e1bde3bb158cd3d08b9d94a90d3cabf1ba7cb
> commit: e20e1bde3bb158cd3d08b9d94a90d3cabf1ba7cb [11/11] KVM: check for !is_zero_pfn() in kvm_is_mmio_pfn()
> config: powerpc-defconfig
> reproduce:
> wget https://github.com/fengguang/reproduce-kernel-bug/raw/master/cross-build/make.cross -O ~/bin/make.cross
> chmod +x ~/bin/make.cross
> git checkout e20e1bde3bb158cd3d08b9d94a90d3cabf1ba7cb
> make.cross ARCH=powerpc defconfig
> make.cross ARCH=powerpc
>
> All error/warnings:
>
>>> ERROR: "zero_pfn" [arch/powerpc/kvm/kvm.ko] undefined!
>
OK, so apparently, zero_pfn, which is used by the inline_zero_pfn() is
not exported, which is unfortunate.
I will go ahead and propose a patch to add this EXPORT(), but
unfortunately, s390's and mips's definition of is_zero_pfn() requires
zero_page_mask to be exported as well.
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[not found] <54132c79.gO9ZtzE1hCCwPdyq%fengguang.wu@intel.com>
2014-09-12 19:44 ` [kvm:master 11/11] ERROR: "zero_pfn" [arch/powerpc/kvm/kvm.ko] undefined! Ard Biesheuvel
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