On Fri, 20 Aug 2010, Bernd Petrovitsch wrote: > Rationale: With a somewhat current gcc (or a somewhat sane peephole > optimizer), the (expensive) "div" is converted to a "shift" or > "mul" with the inverse. > This warning is disabled per default in sparse but the "-Wall" in > the kernels CFLAGS enables it. > > Signed-off-by: Bernd Petrovitsch <bernd@xxxxxxxxxx> > --- > This patch is trivial and affects only calls to sparse (read: make C=1) and > removes false warnings. So it should be considered for inclusion immediately. > > Sorry for the long Cc: - I included everyone in the thread and added > linux-kbuild@ (as it IMHO belongs there) and trivial@ (because of the > complexity of the patch). > > Makefile | 2 +- > 1 files changed, 1 insertions(+), 1 deletions(-) > > diff --git a/Makefile b/Makefile > index f3bdff8..851c0fa 100644 > --- a/Makefile > +++ b/Makefile > @@ -330,7 +330,7 @@ PERL = perl > CHECK = sparse > > CHECKFLAGS := -D__linux__ -Dlinux -D__STDC__ -Dunix -D__unix__ \ > - -Wbitwise -Wno-return-void $(CF) > + -Wbitwise -Wno-return-void -Wno-ptr-subtraction-blows $(CF) > CFLAGS_MODULE = > AFLAGS_MODULE = > LDFLAGS_MODULE = What is the status of this patch? I don't see it Nacked, but it's not in linux-next either. Thanks, -- Jiri Kosina SUSE Labs, Novell Inc. -- To unsubscribe from this list: send the line "unsubscribe linux-kbuild" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
