Re: [PATCH] lsm: constify the 'mm' parameter in security_vm_enough_memory_mm()

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On Thu, Aug 24, 2023 at 9:04 AM kernel test robot <lkp@xxxxxxxxx> wrote:
>
> Hi Khadija,
>
> kernel test robot noticed the following build errors:
>
> [auto build test ERROR on akpm-mm/mm-everything]
> [also build test ERROR on pcmoore-selinux/next pcmoore-audit/next linus/master v6.5-rc7 next-20230824]
> [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/Khadija-Kamran/lsm-constify-the-mm-parameter-in-security_vm_enough_memory_mm/20230823-145455
> base:   https://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm.git mm-everything
> patch link:    https://lore.kernel.org/r/ZOWtBTKkfcc8sKkY%40gmail.com
> patch subject: [PATCH] lsm: constify the 'mm' parameter in security_vm_enough_memory_mm()
> config: arc-randconfig-001-20230824 (https://download.01.org/0day-ci/archive/20230824/202308242024.q4KF0YIN-lkp@xxxxxxxxx/config)
> compiler: arc-elf-gcc (GCC) 13.2.0
> reproduce: (https://download.01.org/0day-ci/archive/20230824/202308242024.q4KF0YIN-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/202308242024.q4KF0YIN-lkp@xxxxxxxxx/
>
> All errors (new ones prefixed by >>):
>
> >> mm/util.c:928:5: error: conflicting types for '__vm_enough_memory'; have 'int(struct mm_struct *, long int,  int)'
>      928 | int __vm_enough_memory(struct mm_struct *mm, long pages, int cap_sys_admin)
>          |     ^~~~~~~~~~~~~~~~~~
>    In file included from mm/util.c:2:
>    include/linux/mm.h:3199:12: note: previous declaration of '__vm_enough_memory' with type 'int(const struct mm_struct *, long int,  int)'
>     3199 | extern int __vm_enough_memory(const struct mm_struct *mm, long pages, int cap_sys_admin);
>          |            ^~~~~~~~~~~~~~~~~~

It looks like you will also need to update the __vm_enough_memory()
definition to take a const mm_struct parameter.  I looked quickly at
the function just now and I don't think that will be a problem.

-- 
paul-moore.com





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