drivers/gpu/drm/i915/gvt/gtt.c:267:19: error: unused function 'get_pt_type'

From: kernel test robot
Date: Sat Mar 20 2021 - 07:15:58 EST

Hi Nick,

FYI, the error/warning still remains.

tree: master
head: 1c273e10bc0cc7efb933e0ca10e260cdfc9f0b8c
commit: 9f4069b055d1508c833115df7493b6e0001e5c9b drm/i915: re-disable -Wframe-address
date: 11 months ago
config: x86_64-randconfig-a016-20210319 (attached as .config)
compiler: clang version 13.0.0 ( fcc1ce00931751ac02498986feb37744e9ace8de)
reproduce (this is a W=1 build):
wget -O ~/bin/make.cross
chmod +x ~/bin/make.cross
# install x86_64 cross compiling tool for clang build
# apt-get install binutils-x86-64-linux-gnu
git remote add linus
git fetch --no-tags linus master
git checkout 9f4069b055d1508c833115df7493b6e0001e5c9b
# save the attached .config to linux build tree
COMPILER_INSTALL_PATH=$HOME/0day COMPILER=clang make.cross ARCH=x86_64

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

All errors (new ones prefixed by >>):

>> drivers/gpu/drm/i915/gvt/gtt.c:267:19: error: unused function 'get_pt_type' [-Werror,-Wunused-function]
static inline int get_pt_type(int type)
>> drivers/gpu/drm/i915/gvt/gtt.c:590:20: error: unused function 'ppgtt_set_guest_root_entry' [-Werror,-Wunused-function]
static inline void ppgtt_set_guest_root_entry(struct intel_vgpu_mm *mm,
2 errors generated.

vim +/get_pt_type +267 drivers/gpu/drm/i915/gvt/gtt.c

2707e44466881d6 Zhi Wang 2016-03-28 266
054f4eba2a2985b Zhi Wang 2017-10-10 @267 static inline int get_pt_type(int type)
054f4eba2a2985b Zhi Wang 2017-10-10 268 {
054f4eba2a2985b Zhi Wang 2017-10-10 269 return gtt_type_table[type].pt_type;
054f4eba2a2985b Zhi Wang 2017-10-10 270 }
054f4eba2a2985b Zhi Wang 2017-10-10 271

:::::: The code at line 267 was first introduced by commit
:::::: 054f4eba2a2985b1db43353b7b5ce90e96cf9bb9 drm/i915/gvt: Introduce page table type of current level in GTT type enumerations

:::::: TO: Zhi Wang <>
:::::: CC: Zhenyu Wang <zhenyuw@xxxxxxxxxxxxxxx>

0-DAY CI Kernel Test Service, Intel Corporation

Attachment: .config.gz
Description: application/gzip