7:37 p.m.
Hi Arnd,
On Mon, Nov 16, 2020 at 9:33 AM Arnd Bergmann <arnd(a)kernel.org> wrote:
On Mon, Nov 16, 2020 at 5:33 AM Randy Dunlap
<rdunlap(a)infradead.org> wrote:
> On 11/13/20 3:27 PM, kernel test robot wrote:
> > tree: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
master
> > head: 9e6a39eae450b81c8b2c8cbbfbdf8218e9b40c81
> > commit: ef8c01eb64ca6719da449dab0aa9424e13c58bd0 irqchip: Add Loongson PCH PIC
controller
> > date: 6 months ago
> > config: s390-randconfig-r022-20201113 (attached as .config)
> > compiler: s390-linux-gcc (GCC) 9.3.0
> > reproduce (this is a W=1 build):
> > wget
https://raw.githubusercontent.com/intel/lkp-tests/master/sbin/make.cross -O
~/bin/make.cross
> > chmod +x ~/bin/make.cross
> > #
https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit...
> > git remote add linus
https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
> > git fetch --no-tags linus master
> > git checkout ef8c01eb64ca6719da449dab0aa9424e13c58bd0
> > # save the attached .config to linux build tree
> > COMPILER_INSTALL_PATH=$HOME/0day COMPILER=gcc-9.3.0 make.cross
ARCH=s390
> >
> > If you fix the issue, kindly add following tag as appropriate
> > Reported-by: kernel test robot <lkp(a)intel.com>
>
> Hi lkp (ktr) et al,
>
> arch/s390/Kconfig says that HAS_IOMEM depends on CONFIG_PCI and the
> supplied .config.gz file has
> # CONFIG_PCI is not set
>
> Does that mean that all of these drivers should have an additional
> depends on HAS_IOMEM
> in their Kconfig entries?
>
> That's what it would take for them to have access to all of the
> devm_platform_iomap* type functions.
>
> For most ARCHes, OF_ADDRESS also depends on HAS_IOMEM, so that's why
> of_iomap() is not available.
(adding s390 folks to cc)
I think fixing this requires a larger-scale effort. I tried building
an s390 allmodconfig
with CONFIG_PCI disabled, and got warnings and failures in many other places,
see full log at the end of this mail.
While in theory, all of those should depend on 'HAS_IOMEM' or some other symbol,
keeping these dependencies sounds like an uphill battle, and there is not much
to be gained from building the drivers for s390 on top of compile-testing them
on more conventional architectures.
Don't we need the dependencies on HAS_IOMEM for the CONFIG_UML=y
case, too?
Gr{oetje,eeting}s,
Geert
--
Geert Uytterhoeven -- There's lots of Linux beyond ia32 -- geert(a)linux-m68k.org
In personal conversations with technical people, I call myself a hacker. But
when I'm talking to journalists I just say "programmer" or something like
that.
-- Linus Torvalds