Re: [PATCH v3 09/11] s390: mm: Convert to GENERIC_IOREMAP

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On 10/09/22 at 09:54pm, kernel test robot wrote:
> Hi Baoquan,
> 
> I love your patch! Yet something to improve:
> 
> [auto build test ERROR on linus/master]
> [also build test ERROR on next-20221007]
> [cannot apply to akpm-mm/mm-everything openrisc/for-next deller-parisc/for-next s390/features v6.0]
> [If your patch is applied to the wrong git tree, kindly drop us a note.
> And when submitting patch, we suggest to use '--base' as documented in
> https://git-scm.com/docs/git-format-patch#_base_tree_information]
> 
> url:    https://github.com/intel-lab-lkp/linux/commits/Baoquan-He/mm-ioremap-Convert-architectures-to-take-GENERIC_IOREMAP-way/20221009-183524
> base:   https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git a6afa4199d3d038fbfdff5511f7523b0e30cb774
> config: s390-buildonly-randconfig-r006-20221009
> compiler: s390-linux-gcc (GCC) 12.1.0
> 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://github.com/intel-lab-lkp/linux/commit/69f65149d2e87de076edbb2b4dd9532f8f57dd8b
>         git remote add linux-review https://github.com/intel-lab-lkp/linux
>         git fetch --no-tags linux-review Baoquan-He/mm-ioremap-Convert-architectures-to-take-GENERIC_IOREMAP-way/20221009-183524
>         git checkout 69f65149d2e87de076edbb2b4dd9532f8f57dd8b
>         # save the config file
>         mkdir build_dir && cp config build_dir/.config
>         COMPILER_INSTALL_PATH=$HOME/0day COMPILER=gcc-12.1.0 make.cross W=1 O=build_dir ARCH=s390 SHELL=/bin/bash
> 
> If you fix the issue, kindly add following tag where applicable
> | Reported-by: kernel test robot <lkp@xxxxxxxxx>
> 
> All errors (new ones prefixed by >>):
> 
>    s390-linux-ld: mm/ioremap.o: in function `ioremap_prot':
> >> ioremap.c:(.text+0x9a): undefined reference to `arch_ioremap'
>    s390-linux-ld: mm/ioremap.o: in function `iounmap':
> >> ioremap.c:(.text+0x234): undefined reference to `arch_iounmap'
>    s390-linux-ld: drivers/dma/qcom/hidma.o: in function `hidma_probe':
>    hidma.c:(.text+0x4b46): undefined reference to `devm_ioremap_resource'
>    s390-linux-ld: hidma.c:(.text+0x4b9e): undefined reference to `devm_ioremap_resource'

The above compiling errors are caused by unsetting CONFIG_PCI in
s390-buildonly-randconfig-r006-20221009 attached. I keep the items for
reference. Because s390 puts io mem functions in arch/s390/pci/pci.c.
While building arch/s390/pci/pci.c in needs CONFIG_PCI enabled. I don't
think disabling CONFIG_PCI in s390x makes sense in reality, except of
the randconfig testing.

Hi Niklas, lkp

What do you think about this? We can just ignore this building error
with randconfig in lkp?

> 
> -- 
> 0-DAY CI Kernel Test Service
> https://01.org/lkp

> #
> # Automatically generated file; DO NOT EDIT.
> # Linux/s390 6.0.0 Kernel Configuration
> #
...... 
> # end of General setup
> 
> CONFIG_MMU=y
......
> # Device Drivers
> #
> CONFIG_HAVE_PCI=y
> # CONFIG_PCI is not set
......




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