Re: [PATCH v2 4/9] mm: vmalloc: Remove global vmap_area_root rb-tree

Uladzislau Rezki
2023-08-30T19:16:38Z

On Tue, Aug 29, 2023 at 10:30:19PM +0800, kernel test robot wrote:
> Hi Uladzislau,
>
> kernel test robot noticed the following build warnings:
>
> [auto build test WARNING on akpm-mm/mm-everything]
> [also build test WARNING on linus/master v6.5]
> [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/Uladzislau-Rezki-Sony/mm-vmalloc-Add-va_alloc-helper/20230829-161248
> base: https://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm.git mm-everything
> patch link: https://lore.kernel.org/r/20230829081142.3619-5-urezki%40gmail.com
> patch subject: [PATCH v2 4/9] mm: vmalloc: Remove global vmap_area_root rb-tree
> config: csky-randconfig-r024-20230829 (https://download.01.org/0day-ci/archive/20230829/202308292228.RRrGUYyB-lkp@intel.com/config)
> compiler: csky-linux-gcc (GCC) 13.2.0
> reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20230829/202308292228.RRrGUYyB-lkp@intel.com/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@intel.com>
> | Closes: https://lore.kernel.org/oe-kbuild-all/202308292228.RRrGUYyB-lkp@intel.com/
>
> All warnings (new ones prefixed by >>):
>
> mm/vmalloc.c: In function 'vmap_init_free_space':
> >> mm/vmalloc.c:4506:45: warning: ordered comparison of pointer with integer zero [-Wextra]
> 4506 | if (busy->addr - vmap_start > 0) {
> | ^
>
Right. I will fix it. We should cast the busy->addr to unsigned long.

--
Uladzislau Rezki