Re: sound/soc/intel/catpt/dsp.c:359:9: sparse: sparse: restricted pci_power_t degrades to integer
From: Bjorn Helgaas
Date: Thu Oct 22 2020 - 10:09:27 EST
On Thu, Oct 22, 2020 at 04:52:29PM +0300, Andy Shevchenko wrote:
> +Cc: Bjorn
>
> On Thu, Oct 22, 2020 at 03:25:49PM +0800, kernel test robot wrote:
> > tree: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git master
> > head: f804b3159482eedbb4250b1e9248c308fb63b805
> > commit: 6cbfa11d2694b8a1e46d6834fb9705d5589e3ef1 ASoC: Intel: Select catpt and deprecate haswell
> > date: 3 weeks ago
> > config: i386-randconfig-s002-20201022 (attached as .config)
> > compiler: gcc-9 (Debian 9.3.0-15) 9.3.0
> > reproduce:
> > # apt-get install sparse
> > # sparse version: v0.6.3-dirty
> > # https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=6cbfa11d2694b8a1e46d6834fb9705d5589e3ef1
> > git remote add linus https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
> > git fetch --no-tags linus master
> > git checkout 6cbfa11d2694b8a1e46d6834fb9705d5589e3ef1
> > # save the attached .config to linux build tree
> > make W=1 C=1 CF='-fdiagnostic-prefix -D__CHECK_ENDIAN__' ARCH=i386
> >
> > If you fix the issue, kindly add following tag as appropriate
> > Reported-by: kernel test robot <lkp@xxxxxxxxx>
> >
> >
> > "sparse warnings: (new ones prefixed by >>)"
> > >> sound/soc/intel/catpt/dsp.c:359:9: sparse: sparse: restricted pci_power_t degrades to integer
> > sound/soc/intel/catpt/dsp.c:372:9: sparse: sparse: restricted pci_power_t degrades to integer
> > sound/soc/intel/catpt/dsp.c:423:9: sparse: sparse: restricted pci_power_t degrades to integer
> > sound/soc/intel/catpt/dsp.c:447:9: sparse: sparse: restricted pci_power_t degrades to integer
>
> I dunno who and why created that specific bitwise type. I met not the first
> time the same Sparse complain.
Thanks for the cc. Yeah, I hate that too. It's one of the few
remaining warnings in drivers/pci/. It's my goal to eradicate it for
v5.11.