Re: [PATCH v6 04/11] LSM: syscalls for current process attributes

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

Hi Casey,

I love your patch! Perhaps something to improve:

[auto build test WARNING on tip/perf/core]
[also build test WARNING on acme/perf/core shuah-kselftest/next shuah-kselftest/fixes v6.2]
[cannot apply to linus/master next-20230223]
[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/Casey-Schaufler/LSM-Maintain-a-table-of-LSM-attribute-data/20230223-050902
patch link:    https://lore.kernel.org/r/20230222200838.8149-5-casey%40schaufler-ca.com
patch subject: [PATCH v6 04/11] LSM: syscalls for current process attributes
config: x86_64-rhel-8.3 (https://download.01.org/0day-ci/archive/20230223/202302232007.dcqfhRnw-lkp@intel.com/config)
compiler: gcc-11 (Debian 11.3.0-8) 11.3.0
reproduce (this is a W=1 build):
        # https://github.com/intel-lab-lkp/linux/commit/04ba82c1bd629c2114ad851b4723d6e8b0f9d08f
        git remote add linux-review https://github.com/intel-lab-lkp/linux
        git fetch --no-tags linux-review Casey-Schaufler/LSM-Maintain-a-table-of-LSM-attribute-data/20230223-050902
        git checkout 04ba82c1bd629c2114ad851b4723d6e8b0f9d08f
        # save the config file
        mkdir build_dir && cp config build_dir/.config
        make W=1 O=build_dir ARCH=x86_64 olddefconfig
        make W=1 O=build_dir ARCH=x86_64 SHELL=/bin/bash

If you fix the issue, kindly add following tag where applicable
| Reported-by: kernel test robot <lkp@intel.com>
| Link: https://lore.kernel.org/oe-kbuild-all/202302232007.dcqfhRnw-lkp@intel.com/

All warnings (new ones prefixed by >>):

>> security/lsm_syscalls.c:61:5: warning: no previous prototype for 'lsm_name_to_attr' [-Wmissing-prototypes]
      61 | u64 lsm_name_to_attr(const char *name)
         |     ^~~~~~~~~~~~~~~~


vim +/lsm_name_to_attr +61 security/lsm_syscalls.c

    51	
    52	/**
    53	 * lsm_name_to_attr - map an LSM attribute name to its ID
    54	 * @name: name of the attribute
    55	 *
    56	 * Look the given @name up in the table of know attribute names.
    57	 *
    58	 * Returns the LSM attribute value associated with @name, or 0 if
    59	 * there is no mapping.
    60	 */
  > 61	u64 lsm_name_to_attr(const char *name)
    62	{
    63		int i;
    64	
    65		for (i = 0; i < ARRAY_SIZE(lsm_attr_names); i++)
    66			if (!strcmp(name, lsm_attr_names[i].name))
    67				return lsm_attr_names[i].attrs;
    68		return 0;
    69	}
    70	

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