Re: [PATCH v4 1/6] mm: memory: extend finish_fault() to support large folio

[Baolin Wang]

On 2024/6/4 22:58, kernel test robot wrote:
> Hi Baolin,
>
> kernel test robot noticed the following build warnings:
>
> [auto build test WARNING on akpm-mm/mm-everything]
> [also build test WARNING on linus/master v6.10-rc2 next-20240604]
> [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/Baolin-Wang/mm-memory-extend-finish_fault-to-support-large-folio/20240604-182028
> base:   https://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm.git mm-everything
> patch link:    https://lore.kernel.org/r/bee11bfd9157e60aaea6db033a4af7c13c982c82.1717495894.git.baolin.wang%40linux.alibaba.com
> patch subject: [PATCH v4 1/6] mm: memory: extend finish_fault() to support large folio
> config: openrisc-allnoconfig (https://download.01.org/0day-ci/archive/20240604/202406042210.20LfqwNd-lkp@xxxxxxxxx/config)
> compiler: or1k-linux-gcc (GCC) 13.2.0
> reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20240604/202406042210.20LfqwNd-lkp@xxxxxxxxx/reproduce)
>
> If you fix the issue in a separate patch/commit (i.e. not just a new version of
> the same patch/commit), kindly add following tags
> | Reported-by: kernel test robot <lkp@xxxxxxxxx>
> | Closes: https://lore.kernel.org/oe-kbuild-all/202406042210.20LfqwNd-lkp@xxxxxxxxx/
>
> All warnings (new ones prefixed by >>):
>
>     mm/memory.c: In function 'finish_fault':
> > > mm/memory.c:4838:29: warning: unused variable 'i' [-Wunused-variable]
>      4838 |         int type, nr_pages, i;
>           |                             ^

Oops, thanks for reporting. Forgot to remove the variable 'i' when 
changing to use update_mmu_tlb_range().

I see Andrew has already helped to remove this unused variable 'i'. 
Thanks Andrew.