Re: [kbuild-all] Re: [PATCH v5 RESEND 1/3] vmcore: Convert copy_oldmem_page() to take an iov_iter

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On Sat, Apr 09, 2022 at 09:02:29AM +0800, Baoquan He wrote:
> On 04/08/22 at 09:17pm, kernel test robot wrote:
> > Hi Baoquan,
> > 
> > Thank you for the patch! Perhaps something to improve:
> > 
> > [auto build test WARNING on powerpc/next]
> > [also build test WARNING on s390/features linus/master v5.18-rc1 next-20220408]
> > [cannot apply to tip/x86/core hnaz-mm/master arm64/for-next/core]
> > [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]
> > 
> > url:    https://github.com/intel-lab-lkp/linux/commits/Baoquan-He/Convert-vmcore-to-use-an-iov_iter/20220408-170846
> > base:   https://git.kernel.org/pub/scm/linux/kernel/git/powerpc/linux.git next
> > config: sh-randconfig-s032-20220408 (https://download.01.org/0day-ci/archive/20220408/202204082128.JKXXDGpa-lkp@xxxxxxxxx/config)
> > compiler: sh4-linux-gcc (GCC) 11.2.0
> > reproduce:
> >         wget https://raw.githubusercontent.com/intel/lkp-tests/master/sbin/make.cross -O ~/bin/make.cross
> 
> Thanks for reporting this, do I need to try this on ppc system?
> 
> I tried on x86_64 system, for the 1st step, I got this:
> 
> [ ~]# wget https://raw.githubusercontent.com/intel/lkp-tests/master/sbin/make.cross -O ~/bin/make.cross
> /root/bin/make.cross: No such file or directory
> 
> What else should I do to proceed?

not sure whether mkdir -p /root/bin works? I can reproduce this if i don't have ~/bin dir.

We will look into this to make reproduce step clearer.

> 
> Thanks
> Baoquan
> 
> >         chmod +x ~/bin/make.cross
> >         # apt-get install sparse
> >         # sparse version: v0.6.4-dirty
> >         # https://github.com/intel-lab-lkp/linux/commit/a5e42962f5c0bea73aa382a2415094b4bd6c6c73
> >         git remote add linux-review https://github.com/intel-lab-lkp/linux
> >         git fetch --no-tags linux-review Baoquan-He/Convert-vmcore-to-use-an-iov_iter/20220408-170846
> >         git checkout a5e42962f5c0bea73aa382a2415094b4bd6c6c73
> >         # save the config file to linux build tree
> >         mkdir build_dir
> >         COMPILER_INSTALL_PATH=$HOME/0day COMPILER=gcc-11.2.0 make.cross C=1 CF='-fdiagnostic-prefix -D__CHECK_ENDIAN__' O=build_dir ARCH=sh SHELL=/bin/bash arch/sh/kernel/
> > 
> > If you fix the issue, kindly add following tag as appropriate
> > Reported-by: kernel test robot <lkp@xxxxxxxxx>
> > 
> > 
> > sparse warnings: (new ones prefixed by >>)
> > >> arch/sh/kernel/crash_dump.c:23:36: sparse: sparse: incorrect type in argument 1 (different address spaces) @@     expected void const *addr @@     got void [noderef] __iomem * @@
> >    arch/sh/kernel/crash_dump.c:23:36: sparse:     expected void const *addr
> >    arch/sh/kernel/crash_dump.c:23:36: sparse:     got void [noderef] __iomem *
> > 
> > vim +23 arch/sh/kernel/crash_dump.c
> > 
> >     13	
> >     14	ssize_t copy_oldmem_page(struct iov_iter *iter, unsigned long pfn,
> >     15				 size_t csize, unsigned long offset)
> >     16	{
> >     17		void  __iomem *vaddr;
> >     18	
> >     19		if (!csize)
> >     20			return 0;
> >     21	
> >     22		vaddr = ioremap(pfn << PAGE_SHIFT, PAGE_SIZE);
> >   > 23		csize = copy_to_iter(vaddr + offset, csize, iter);
> > 
> > -- 
> > 0-DAY CI Kernel Test Service
> > https://01.org/lkp
> > 
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