linux-kernel - [ammarfaizi2-block:google/android/kernel/common/android-mainline 17/21] kernel/gki_module.c:35:6: warning: no previous prototype for 'gki_is_module_protected

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Date:   Fri, 11 Feb 2022 16:50:39 +0800
From:   kernel test robot <lkp@...el.com>
To:     Ramji Jiyani <ramjiyani@...gle.com>
Cc:     kbuild-all@...ts.01.org,
        GNU/Weeb Mailing List <gwml@...r.gnuweeb.org>,
        linux-kernel@...r.kernel.org
Subject: [ammarfaizi2-block:google/android/kernel/common/android-mainline
 17/21] kernel/gki_module.c:35:6: warning: no previous prototype for
 'gki_is_module_protected_symbol'

tree:   https://github.com/ammarfaizi2/linux-block google/android/kernel/common/android-mainline
head:   368cd631746c9d700f41883314865ea3ab05cfb7
commit: 5ffc4c2275478f8d4c17795dc5f1b552559fff26 [17/21] Revert "Revert "ANDROID: GKI: Add module load time protected symbol lookup""
config: sparc-buildonly-randconfig-r006-20220211 (https://download.01.org/0day-ci/archive/20220211/202202111611.znc1YtAj-lkp@intel.com/config)
compiler: sparc64-linux-gcc (GCC) 11.2.0
reproduce (this is a W=1 build):
        wget https://raw.githubusercontent.com/intel/lkp-tests/master/sbin/make.cross -O ~/bin/make.cross
        chmod +x ~/bin/make.cross
        # https://github.com/ammarfaizi2/linux-block/commit/5ffc4c2275478f8d4c17795dc5f1b552559fff26
        git remote add ammarfaizi2-block https://github.com/ammarfaizi2/linux-block
        git fetch --no-tags ammarfaizi2-block google/android/kernel/common/android-mainline
        git checkout 5ffc4c2275478f8d4c17795dc5f1b552559fff26
        # save the config file to linux build tree
        mkdir build_dir
        COMPILER_INSTALL_PATH=$HOME/0day COMPILER=gcc-11.2.0 make.cross O=build_dir ARCH=sparc SHELL=/bin/bash

If you fix the issue, kindly add following tag as appropriate
Reported-by: kernel test robot <lkp@...el.com>

All warnings (new ones prefixed by >>):

>> kernel/gki_module.c:35:6: warning: no previous prototype for 'gki_is_module_protected_symbol' [-Wmissing-prototypes]
      35 | bool gki_is_module_protected_symbol(const char *name)
         |      ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
>> kernel/gki_module.c:46:6: warning: no previous prototype for 'gki_is_module_exported_symbol' [-Wmissing-prototypes]
      46 | bool gki_is_module_exported_symbol(const char *name)
         |      ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~

Kconfig warnings: (for reference only)
   WARNING: unmet direct dependencies detected for NET_PTP_CLASSIFY
   Depends on NET
   Selected by
   - GKI_HIDDEN_NET_CONFIGS
   WARNING: unmet direct dependencies detected for HVC_DRIVER
   Depends on TTY
   Selected by
   - GKI_HIDDEN_VIRTUAL_CONFIGS
   WARNING: unmet direct dependencies detected for PAGE_POOL
   Depends on NET
   Selected by
   - GKI_HIDDEN_NET_CONFIGS


vim +/gki_is_module_protected_symbol +35 kernel/gki_module.c

    29	
    30	/**
    31	 * gki_is_module_protected_symbol - Is a symbol protected from unsigned module?
    32	 *
    33	 * @name:	Symbol being checked against protection from unsigned module
    34	 */
  > 35	bool gki_is_module_protected_symbol(const char *name)
    36	{
    37		return bsearch(name, gki_protected_symbols, NO_OF_PROTECTED_SYMBOLS,
    38			       MAX_PROTECTED_NAME_LEN, cmp_name) != NULL;
    39	}
    40	
    41	/**
    42	 * gki_is_module_exported_symbol - Is a symbol exported from a GKI module?
    43	 *
    44	 * @name:	Symbol being checked against exported symbols from GKI modules
    45	 */
  > 46	bool gki_is_module_exported_symbol(const char *name)

---
0-DAY CI Kernel Test Service, Intel Corporation
https://lists.01.org/hyperkitty/list/kbuild-all@lists.01.org