On Wed, Dec 15, 2021 at 1:11 AM Sam Protsenko <semen.protsenko@xxxxxxxxxx> wrote: > > On Tue, 7 Dec 2021 at 16:03, Sam Protsenko <semen.protsenko@xxxxxxxxxx> wrote: > > > > Duplicated unit address is a normal case, as long as no more than one > > node using that address is enabled. Having duplicated addresses is > > already allowed by '-Wno-unique_unit_address' in DTC_FLAGS. But two > > simultaneously enabled nodes sharing the same address is usually > > incorrect. Add '-Wunique_unit_address_if_enabled' flag to report > > warnings for such case when doing "make dtbs_check". > > > > Signed-off-by: Sam Protsenko <semen.protsenko@xxxxxxxxxx> > > Reported-by: Rob Herring <robh@xxxxxxxxxx> > > Suggested-by: Rob Herring <robh@xxxxxxxxxx> > > --- > > NOTE: After applying this patch, a lot of warnings appear on "make > > dtbs_check". I'm not completely sure if it's ok, so feel free to Nack. > > > > Hi Rob, > > Do you think this patch is feasible? You asked me to send it before, > though I now see it leads to a lot of errors being revealed when doing > "make dtbs" and "make dtbs_check". Please let me know if it's Ack or > Nack -- I'm fine with any resolution, just want to know if I should > continue to carry it in my local branch or drop it. > > Thanks! This is up to Rob. I do not mind either way. > > > scripts/Makefile.lib | 3 ++- > > 1 file changed, 2 insertions(+), 1 deletion(-) > > > > diff --git a/scripts/Makefile.lib b/scripts/Makefile.lib > > index ce6142238835..2f00c996d2e3 100644 > > --- a/scripts/Makefile.lib > > +++ b/scripts/Makefile.lib > > @@ -315,7 +315,8 @@ DTC_FLAGS += -Wno-unit_address_vs_reg \ > > -Wno-alias_paths \ > > -Wno-graph_child_address \ > > -Wno-simple_bus_reg \ > > - -Wno-unique_unit_address > > + -Wno-unique_unit_address \ > > + -Wunique_unit_address_if_enabled > > endif > > > > ifneq ($(findstring 2,$(KBUILD_EXTRA_WARN)),) > > -- > > 2.30.2 > > -- Best Regards Masahiro Yamada
