On 20/9/20 21:09, Paolo Bonzini wrote:
On 14/09/20 11:11, lihaiwei.kernel@xxxxxxxxx wrote:
From: Haiwei Li <lihaiwei@xxxxxxxxxxx>
When CONFIG_SMP is not set, an build error occurs with message "error:
use of undeclared identifier 'kvm_send_ipi_mask_allbutself'"
Fixes: 0f990222108d ("KVM: Check the allocation of pv cpu mask", 2020-09-01)
Reported-by: kernel test robot <lkp@xxxxxxxxx>
Signed-off-by: Haiwei Li <lihaiwei@xxxxxxxxxxx>
---
arch/x86/kernel/kvm.c | 2 ++
1 file changed, 2 insertions(+)
diff --git a/arch/x86/kernel/kvm.c b/arch/x86/kernel/kvm.c
index 1b51b727b140..7e8be0421720 100644
--- a/arch/x86/kernel/kvm.c
+++ b/arch/x86/kernel/kvm.c
@@ -797,7 +797,9 @@ static __init int kvm_alloc_cpumask(void)
}
}
+#if defined(CONFIG_SMP)
apic->send_IPI_mask_allbutself = kvm_send_ipi_mask_allbutself;
+#endif
pv_ops.mmu.flush_tlb_others = kvm_flush_tlb_others;
return 0;
If CONFIG_SMP is not set you don't need kvm_alloc_cpumask or
pv_ops.mmu.flush_tlb_others at all. Can you squash these two into the
original patch and re-submit for 5.10?
I will, thanks.
Haiwei Li
