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Message-ID: <201910141927.TmRjDDOq%lkp@intel.com>
Date: Mon, 14 Oct 2019 20:03:41 +0800
From: kbuild test robot <lkp@...el.com>
To: Zhuang Yanying <ann.zhuangyanying@...wei.com>
Cc: kbuild-all@...ts.01.org, ann.zhuangyanying@...wei.com,
linfeng23@...wei.com, pbonzini@...hat.com,
linux-kernel@...r.kernel.org, weiqi4@...wei.com,
weidong.huang@...wei.com
Subject: Re: [PATCH] KVM: fix overflow of zero page refcount ksm
use_zero_pages
Hi Zhuang,
Thank you for the patch! Yet something to improve:
[auto build test ERROR on kvm/linux-next]
[cannot apply to v5.4-rc3 next-20191011]
[if your patch is applied to the wrong git tree, please drop us a note to help
improve the system. BTW, we also suggest to use '--base' option to specify the
base tree in git format-patch, please see https://stackoverflow.com/a/37406982]
url: https://github.com/0day-ci/linux/commits/Zhuang-Yanying/KVM-fix-overflow-of-zero-page-refcount-ksm-use_zero_pages/20191014-020341
base: https://git.kernel.org/pub/scm/virt/kvm/kvm.git linux-next
config: x86_64-lkp (attached as .config)
compiler: gcc-7 (Debian 7.4.0-13) 7.4.0
reproduce:
# save the attached .config to linux build tree
make ARCH=x86_64
If you fix the issue, kindly add following tag
Reported-by: kbuild test robot <lkp@...el.com>
All errors (new ones prefixed by >>):
arch/x86/kvm/../../../virt/kvm/kvm_main.c: In function 'kvm_is_reserved_pfn':
>> arch/x86/kvm/../../../virt/kvm/kvm_main.c:155:23: error: 'page' undeclared (first use in this function)
return PageReserved(page) && !is_zero_pfn(pfn);
^~~~
arch/x86/kvm/../../../virt/kvm/kvm_main.c:155:23: note: each undeclared identifier is reported only once for each function it appears in
vim +/page +155 arch/x86/kvm/../../../virt/kvm/kvm_main.c
151
152 bool kvm_is_reserved_pfn(kvm_pfn_t pfn)
153 {
154 if (pfn_valid(pfn))
> 155 return PageReserved(page) && !is_zero_pfn(pfn);
156
157 return true;
158 }
159
---
0-DAY kernel test infrastructure Open Source Technology Center
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