Hi Randy, On Mon, 20 Jul 2020 09:56:08 -0700 Randy Dunlap <[email protected]> wrote: > > 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
Caused by commit
bd4444c47de9 ("rculist : Introduce list/hlist_for_each_entry_srcu() macros")
presumably with CONFIG_PROVE_RCU_LIST not set.
--
Cheers,
Stephen Rothwell
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