On Mon, Aug 01, 2016 at 12:33:30AM -0400, Valdis Kletnieks wrote: > Building with W=1 generates some 350 lines of warnings of the form: > > kernel/bpf/core.c: In function '__bpf_prog_run': > kernel/bpf/core.c:476:33: warning: initialized field overwritten > [-Woverride-init] > [BPF_ALU | BPF_ADD | BPF_X] = &&ALU_ADD_X, > ^~ > kernel/bpf/core.c:476:33: note: (near initialization for 'jumptable[12]') > > Since they come from the way we intentionally build the table, silence > that one specific warning. > > Signed-off-by: Valdis Kletnieks <valdis.kletni...@vt.edu> > > Version 2: Add bpf: subsystem tag to subject line > > diff --git a/kernel/bpf/Makefile b/kernel/bpf/Makefile > index eed911d091da..bb915f9d9f92 100644 > --- a/kernel/bpf/Makefile > +++ b/kernel/bpf/Makefile > @@ -1,3 +1,4 @@ > +CFLAGS_core.o += -Wno-override-init
and at least 2 other such patches for other files... Is there a single warning where -Woverride-init was useful? May be worth disabling this warning for the whole build?