On 16/04/20 04:15, Jason Yan wrote: >> > > Sorry that I found 14e581c381b9 ("x86/kvm: Make steal_time visible") > said that it is used by assembler code but I didn't find where. > Please drop this patch if it's true. > > Sorry to make this trouble again. Here: arch/x86/kernel/kvm.c:"cmpb $0, " __stringify(KVM_STEAL_TIME_preempted) "+steal_time(%rax);" The __visible argument shouldn't be needed, __used should be enough. I'll take a look. Paolo