Re: [PATCH] kvm: avoid unused variable warning for UP builds

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Hi Paolo,

[auto build test ERROR on kvm/linux-next]
[also build test ERROR on v4.12]
[if your patch is applied to the wrong git tree, please drop us a note to help improve the system]

url:    https://github.com/0day-ci/linux/commits/Paolo-Bonzini/kvm-avoid-unused-variable-warning-for-UP-builds/20170706-051225
base:   https://git.kernel.org/pub/scm/virt/kvm/kvm.git linux-next
config: x86_64-allyesdebian (attached as .config)
compiler: gcc-6 (Debian 6.2.0-3) 6.2.0 20160901
reproduce:
        # save the attached .config to linux build tree
        make ARCH=x86_64 

All errors (new ones prefixed by >>):

   arch/x86/kvm/../../../virt/kvm/kvm_main.c: In function 'kvm_make_all_cpus_request':
>> arch/x86/kvm/../../../virt/kvm/kvm_main.c:221:4: error: implicit declaration of function '__cpumask_set_cpu' [-Werror=implicit-function-declaration]
       __cpumask_set_cpu(cpu, cpus);
       ^~~~~~~~~~~~~~~~~
   cc1: some warnings being treated as errors

vim +/__cpumask_set_cpu +221 arch/x86/kvm/../../../virt/kvm/kvm_main.c

   215	
   216			if (!(req & KVM_REQUEST_NO_WAKEUP) && kvm_vcpu_wake_up(vcpu))
   217				continue;
   218	
   219			if (cpus != NULL && cpu != -1 && cpu != me &&
   220			    kvm_request_needs_ipi(vcpu, req))
 > 221				__cpumask_set_cpu(cpu, cpus);
   222		}
   223		called = kvm_kick_many_cpus(cpus, !!(req & KVM_REQUEST_WAIT));
   224		put_cpu();

---
0-DAY kernel test infrastructure                Open Source Technology Center
https://lists.01.org/pipermail/kbuild-all                   Intel Corporation

Attachment: .config.gz
Description: application/gzip


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