Re: [PATCH v12 2/5] fs/proc/task_mmu: Implement IOCTL to get and optionally clear info about PTEs

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On 4/6/23 4:40 PM, kernel test robot wrote:
> Hi Muhammad,
> 
> kernel test robot noticed the following build errors:
> 
> [auto build test ERROR on akpm-mm/mm-everything]
> [also build test ERROR on next-20230406]
> [cannot apply to linus/master v6.3-rc5]
> [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/Muhammad-Usama-Anjum/userfaultfd-UFFD_FEATURE_WP_ASYNC/20230406-154314
> base:   https://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm.git mm-everything
> patch link:    https://lore.kernel.org/r/20230406074005.1784728-3-usama.anjum%40collabora.com
> patch subject: [PATCH v12 2/5] fs/proc/task_mmu: Implement IOCTL to get and optionally clear info about PTEs
> config: arc-randconfig-r023-20230405 (https://download.01.org/0day-ci/archive/20230406/202304061914.N1Hmx12N-lkp@xxxxxxxxx/config)
> compiler: arceb-elf-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/f13abb36f64c77913509da8ca157512d2fb9f031
>         git remote add linux-review https://github.com/intel-lab-lkp/linux
>         git fetch --no-tags linux-review Muhammad-Usama-Anjum/userfaultfd-UFFD_FEATURE_WP_ASYNC/20230406-154314
>         git checkout f13abb36f64c77913509da8ca157512d2fb9f031
>         # save the config file
>         mkdir build_dir && cp config build_dir/.config
>         COMPILER_INSTALL_PATH=$HOME/0day COMPILER=gcc-12.1.0 make.cross W=1 O=build_dir ARCH=arc olddefconfig
>         COMPILER_INSTALL_PATH=$HOME/0day COMPILER=gcc-12.1.0 make.cross W=1 O=build_dir ARCH=arc SHELL=/bin/bash fs/proc/
> 
> If you fix the issue, kindly add following tag where applicable
> | Reported-by: kernel test robot <lkp@xxxxxxxxx>
> | Link: https://lore.kernel.org/oe-kbuild-all/202304061914.N1Hmx12N-lkp@xxxxxxxxx/
> 
> All error/warnings (new ones prefixed by >>):
> 
>    fs/proc/task_mmu.c: In function 'pagemap_scan_pmd_entry':
>>> fs/proc/task_mmu.c:1921:37: error: 'HPAGE_SIZE' undeclared (first use in this function); did you mean 'PAGE_SIZE'?
>     1921 |                     ((end - start < HPAGE_SIZE) ||
>          |                                     ^~~~~~~~~~
>          |                                     PAGE_SIZE
It seems arc architecture supports CONFIG_TRANSPARENT_HUGEPAGE, but it
doesn't define HPAGE_SIZE. It only defines PAGE_SIZE in
include/uapi/asm/page.h? AFAIK HPAGE_SIZE must be defined when
CONFIG_TRANSPARENT_HUGEPAGE is enabled. What can be the solution here for arc?

The remaining build failures are because the wrong tree. I base my patches
on latest next, while the bot has based patches on mm-everything. I guess
today's next would have latest mm stuff, a rebase would make things correct
or I'll shift to mm-everything.


-- 
BR,
Muhammad Usama Anjum



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