Re: [PATCH 3/3] tso: aarch64: allow userspace to set tso bit using prctl

[kernel test robot <lkp@intel.com>]

Hi Zayd,

kernel test robot noticed the following build warnings:

[auto build test WARNING on arm64/for-next/core]
[also build test WARNING on linus/master v6.9-rc3 next-20240411]
[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/Zayd-Qumsieh/tso-aarch64-allow-linux-kernel-to-read-write-ACTLR-TSOEN/20240411-061830
base:   https://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux.git for-next/core
patch link:    https://lore.kernel.org/r/20240410211652.16640-4-zayd_qumsieh%40apple.com
patch subject: [PATCH 3/3] tso: aarch64: allow userspace to set tso bit using prctl
config: alpha-allnoconfig (https://download.01.org/0day-ci/archive/20240411/202404112024.tvGveZOX-lkp@intel.com/config)
compiler: alpha-linux-gcc (GCC) 13.2.0
reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20240411/202404112024.tvGveZOX-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/202404112024.tvGveZOX-lkp@intel.com/

All warnings (new ones prefixed by >>):

>> kernel/sys.c:2319:12: warning: no previous prototype for 'arch_set_mem_model' [-Wmissing-prototypes]
    2319 | int __weak arch_set_mem_model(struct task_struct *task, int memory_model)
         |            ^~~~~~~~~~~~~~~~~~


vim +/arch_set_mem_model +2319 kernel/sys.c

  2318	
> 2319	int __weak arch_set_mem_model(struct task_struct *task, int memory_model)
  2320	{
  2321		return -EINVAL;
  2322	}
  2323	

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