On 7/20/20 2:42 AM, Stephen Rothwell wrote: > Hi all, > > Changes since 20200717: > on x86_64: CC [M] arch/x86/kvm/mmu/page_track.o In file included from ../include/linux/pid.h:5:0, from ../include/linux/sched.h:14, from ../include/linux/kvm_host.h:12, from ../arch/x86/kvm/mmu/page_track.c:14: ../arch/x86/kvm/mmu/page_track.c: In function ‘kvm_page_track_write’: ../include/linux/rculist.h:727:30: error: left-hand operand of comma expression has no effect [-Werror=unused-value] for (__list_check_srcu(cond), \ ^ ../arch/x86/kvm/mmu/page_track.c:232:2: note: in expansion of macro ‘hlist_for_each_entry_srcu’ hlist_for_each_entry_srcu(n, &head->track_notifier_list, node, ^~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/x86/kvm/mmu/page_track.c: In function ‘kvm_page_track_flush_slot’: ../include/linux/rculist.h:727:30: error: left-hand operand of comma expression has no effect [-Werror=unused-value] for (__list_check_srcu(cond), \ ^ ../arch/x86/kvm/mmu/page_track.c:258:2: note: in expansion of macro ‘hlist_for_each_entry_srcu’ hlist_for_each_entry_srcu(n, &head->track_notifier_list, node, ^~~~~~~~~~~~~~~~~~~~~~~~~ cc1: all warnings being treated as errors -- ~Randy Reported-by: Randy Dunlap <rdunlap@xxxxxxxxxxxxx>