[kbuild-all] [chrome-os:chromeos-5.4 37/134] drivers/gpu/drm/i915/i915_debugfs_params.c:212:16: error: no previous prototype for 'i915_debugfs_params'

tree: https://chromium.googlesource.com/chromiumos/third_party/kernel chromeos-5.4 head: 31c49140c8465fa6b378d3ae40d02a6df47a43d4 commit: 738e30f72e11e5a643939731b4ad12bc1ac96ad8 [37/134] BACKPORT: drm/i915/params: add i915 parameters to debugfs config: x86_64-randconfig-a011-20200913 (attached as .config) compiler: gcc-9 (Debian 9.3.0-15) 9.3.0 reproduce (this is a W=1 build): git checkout 738e30f72e11e5a643939731b4ad12bc1ac96ad8 # save the attached .config to linux build tree make W=1 ARCH=x86_64 If you fix the issue, kindly add following tag as appropriate Reported-by: kernel test robot <lkp(a)intel.com&gt; All errors (new ones prefixed by >>): 212 | struct dentry *i915_debugfs_params(struct drm_i915_private *i915) | ^~~~~~~~~~~~~~~~~~~ cc1: all warnings being treated as errors git remote add chrome-os https://chromium.googlesource.com/chromiumos/third_party/kernel git fetch --no-tags chrome-os chromeos-5.4 git checkout 738e30f72e11e5a643939731b4ad12bc1ac96ad8 vim +/i915_debugfs_params +212 drivers/gpu/drm/i915/i915_debugfs_params.c 210 211 /* add a subdirectory with files for each i915 param */ 213 { 214 struct drm_minor *minor = i915->drm.primary; 215 struct i915_params *params = &i915_modparams; 216 struct dentry *dir; 217 218 dir = debugfs_create_dir("i915_params", minor->debugfs_root); 219 if (IS_ERR(dir)) 220 return dir; 221 222 /* 223 * Note: We could create files for params needing special handling 224 * here. Set mode in params to 0 to skip the generic create file, or 225 * just let the generic create file fail silently with -EEXIST. 226 */ 227 --- 0-DAY CI Kernel Test Service, Intel Corporation https://lists.01.org/hyperkitty/list/kbuild-all@lists.01.org