[jimc:dd-fix-2i 14/18] drivers/gpu/drm/drm_print.c:72:1: sparse: sparse: symbol with external linkage has initializer

[jimc:dd-fix-2i 14/18] drivers/gpu/drm/drm_print.c:72:1: sparse: sparse: symbol with external linkage has initializer

[kernel test robot]

:::::: 
:::::: Manual check reason: "low confidence static check first_new_problem: drivers/gpu/drm/drm_print.c:72:1: sparse: sparse: symbol with external linkage has initializer"
:::::: 

BCC: lkp@intel.com
CC: oe-kbuild-all@lists.linux.dev
TO: Jim Cromie <jim.cromie@gmail.com>

Hi Jim,

FYI, the error/warning was bisected to this commit, please ignore it if it's irrelevant.

tree:   https://github.com/jimc/linux.git dd-fix-2i
head:   706822e871c197cefca034dce9582e0fc916732b
commit: ef232594f3c9aad7f5e0025231dc669570c3548a [14/18] drm: restore CONFIG_DRM_USE_DYNAMIC_DEBUG un-BROKEN
:::::: branch date: 19 hours ago
:::::: commit date: 19 hours ago
config: i386-randconfig-s002-20230620 (https://download.01.org/0day-ci/archive/20230621/202306212236.GVs74ID5-lkp@intel.com/config)
compiler: gcc-12 (Debian 12.2.0-14) 12.2.0
reproduce: (https://download.01.org/0day-ci/archive/20230621/202306212236.GVs74ID5-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/r/202306212236.GVs74ID5-lkp@intel.com/

sparse warnings: (new ones prefixed by >>)
>> drivers/gpu/drm/drm_print.c:72:1: sparse: sparse: symbol with external linkage has initializer
   drivers/gpu/drm/drm_print.c:59:1: sparse: sparse: symbol 'drm_debug_classes_classnames' was not declared. Should it be static?

vim +72 drivers/gpu/drm/drm_print.c

f158936b60a787 Jim Cromie 2022-09-11  54  
f158936b60a787 Jim Cromie 2022-09-11  55  #if !defined(CONFIG_DRM_USE_DYNAMIC_DEBUG)
f158936b60a787 Jim Cromie 2022-09-11  56  module_param_named(debug, __drm_debug, ulong, 0600);
f158936b60a787 Jim Cromie 2022-09-11  57  #else
164636c3874a28 Jim Cromie 2022-12-21  58  /* classnames must match value-symbols of enum drm_debug_category */
164636c3874a28 Jim Cromie 2022-12-21  59  DRM_CLASSMAP_DEFINE(drm_debug_classes, DD_CLASS_TYPE_DISJOINT_BITS,
164636c3874a28 Jim Cromie 2022-12-21  60  		    DRM_UT_CORE,
f158936b60a787 Jim Cromie 2022-09-11  61  		    "DRM_UT_CORE",
f158936b60a787 Jim Cromie 2022-09-11  62  		    "DRM_UT_DRIVER",
f158936b60a787 Jim Cromie 2022-09-11  63  		    "DRM_UT_KMS",
f158936b60a787 Jim Cromie 2022-09-11  64  		    "DRM_UT_PRIME",
f158936b60a787 Jim Cromie 2022-09-11  65  		    "DRM_UT_ATOMIC",
f158936b60a787 Jim Cromie 2022-09-11  66  		    "DRM_UT_VBL",
f158936b60a787 Jim Cromie 2022-09-11  67  		    "DRM_UT_STATE",
f158936b60a787 Jim Cromie 2022-09-11  68  		    "DRM_UT_LEASE",
f158936b60a787 Jim Cromie 2022-09-11  69  		    "DRM_UT_DP",
f158936b60a787 Jim Cromie 2022-09-11  70  		    "DRM_UT_DRMRES");
f158936b60a787 Jim Cromie 2022-09-11  71  
c3109b624b9d04 Jim Cromie 2023-06-09 @72  DRM_CLASSMAP_PARAM_REF(debug, __drm_debug, drm_debug_classes, p);
c3109b624b9d04 Jim Cromie 2023-06-09  73  

:::::: The code at line 72 was first introduced by commit
:::::: c3109b624b9d040f1002ae267886572688fd2d93 dyndbg-API: promote DYNDBG_CLASSMAP_PARAM to API

:::::: TO: Jim Cromie <jim.cromie@gmail.com>
:::::: CC: Jim Cromie <jim.cromie@gmail.com>

-- 
0-DAY CI Kernel Test Service
https://github.com/intel/lkp-tests/wiki