Re: [gpio:for-next 40/43] platform.c:undefined reference to `devm_ioremap_resource'

[Bartosz Golaszewski <brgl@xxxxxxxx>]

czw., 21 lut 2019 o 15:19 Linus Walleij <linus.walleij@xxxxxxxxxx> napisał(a):
>
> On Thu, Feb 21, 2019 at 1:48 PM kbuild test robot <lkp@xxxxxxxxx> wrote:
>
> > tree:   https://git.kernel.org/pub/scm/linux/kernel/git/linusw/linux-gpio.git for-next
> > head:   21b4ab8f9e7100286c380a13e0e46ca6bf35e692
> > commit: 7945f929f1a77a1c8887a97ca07f87626858ff42 [40/43] drivers: provide devm_platform_ioremap_resource()
> > config: um-x86_64_defconfig (attached as .config)
> > compiler: gcc-8 (Debian 8.2.0-20) 8.2.0
> > reproduce:
> >         git checkout 7945f929f1a77a1c8887a97ca07f87626858ff42
> >         # save the attached .config to linux build tree
> >         make ARCH=um SUBARCH=x86_64
> >
> > All errors (new ones prefixed by >>):
> >
> >    /usr/bin/ld: drivers/base/platform.o: in function `devm_platform_ioremap_resource':
> > >> platform.c:(.text+0xa8): undefined reference to `devm_ioremap_resource'
> >    collect2: error: ld returned 1 exit status
>
> 99 times out of 100 UM linux bugs are  because something needs to depend on
> HAS_IOMEM or be inside #ifdef CONFIG_HAS_IOMEM. UM doesn't have
> IOMEM.
>
> Bartosz do you see immediately where the problem is or do you
> need help looking into it?
>

No need for help - it's HAS_IOMEM on which devres.c in lib depends. Do
you want a follow-up patch or should I resend the original ones with a
fix?

Bart