Re: [PATCH] staging: rtl8723bs: Mark ACPI table declaration as used

From: Nick Desaulniers
Date: Thu Jan 10 2019 - 17:52:19 EST


On Wed, Jan 9, 2019 at 11:01 PM Greg KH <gregkh@xxxxxxxxxxxxxxxxxxx> wrote:
>
> On Wed, Jan 09, 2019 at 04:19:30PM -0800, Nick Desaulniers wrote:
> > Digging up an old thread to point out I was wrong:
> >
> > On Thu, Sep 27, 2018 at 1:08 PM Nick Desaulniers
> > <ndesaulniers@xxxxxxxxxx> wrote:
> > > > This is not a million-little-commits problem; more like 2 drivers in
> > > > the whole tree have this problem.
> > > >
> > > > Note that this change that Nathan has DOES NOT need to applied to
> > > > every driver that uses MODULE_DEVICE_TABLE. Only when the struct has
> > > > no other references other than JUST being passed to
> > > > MODULE_DEVICE_TABLE() is this a problem. For an allyesconfig, I only
> > > > see 2 instances of this case in the whole tree:
> > > >
> > > > https://github.com/ClangBuiltLinux/linux/issues/169 <- this patch is addressing
> > > > https://github.com/ClangBuiltLinux/linux/issues/178 <- waiting on the
> > > > results of this patch
> > > >
> > > > If you're ok with this change to two drivers, then:
> > > > Reviewed-by: Nick Desaulniers <ndesaulniers@xxxxxxxxxx>
> >
> > I just landed a fix for this in Clang
> > (https://reviews.llvm.org/rL350776) which will ship soon in Clang 8.
> > Sedat helped test this patch and reported that it removed 41
> > false-negative warnings
> > https://github.com/ClangBuiltLinux/linux/issues/232#issuecomment-440006399
>
> Great, thanks for letting me know. Can I revert this patch?

Go for it. I think my mistake was that we had 2 instances of this
listed in our bug tracker, but an allyesconfig had many many more
instances than I was aware of.
--
Thanks,
~Nick Desaulniers