Hi Randy, FYI, the error/warning still remains. tree: https://git.kernel.org/pub/scm/linux/kernel/git/next/linux-next.git master head: 577c283560fe8a81a23a95654c6d13e8412d22f1 commit: bfa5782b9caa26f93f42ad79804e1f75a1ce9f18 [11942/12503] fbdev: atyfb: add stubs for aty_{ld,st}_lcd() config: arm64-randconfig-r004-20210223 (attached as .config) compiler: clang version 13.0.0 (https://github.com/llvm/llvm-project f14a14dd2564703db02f80c00db8ae492b594f77) 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 # install arm64 cross compiling tool for clang build # apt-get install binutils-aarch64-linux-gnu # https://git.kernel.org/pub/scm/linux/kernel/git/next/linux-next.git/commit/?id=bfa5782b9caa26f93f42ad79804e1f75a1ce9f18 git remote add linux-next https://git.kernel.org/pub/scm/linux/kernel/git/next/linux-next.git git fetch --no-tags linux-next master git checkout bfa5782b9caa26f93f42ad79804e1f75a1ce9f18 # save the attached .config to linux build tree COMPILER_INSTALL_PATH=$HOME/0day COMPILER=clang make.cross ARCH=arm64 If you fix the issue, kindly add following tag as appropriate Reported-by: kernel test robot <lkp@xxxxxxxxx> All warnings (new ones prefixed by >>): >> drivers/video/fbdev/aty/atyfb_base.c:180:6: warning: no previous prototype for function 'aty_st_lcd' [-Wmissing-prototypes] void aty_st_lcd(int index, u32 val, const struct atyfb_par *par) ^ drivers/video/fbdev/aty/atyfb_base.c:180:1: note: declare 'static' if the function is not intended to be used outside of this translation unit void aty_st_lcd(int index, u32 val, const struct atyfb_par *par) ^ static >> drivers/video/fbdev/aty/atyfb_base.c:183:5: warning: no previous prototype for function 'aty_ld_lcd' [-Wmissing-prototypes] u32 aty_ld_lcd(int index, const struct atyfb_par *par) ^ drivers/video/fbdev/aty/atyfb_base.c:183:1: note: declare 'static' if the function is not intended to be used outside of this translation unit u32 aty_ld_lcd(int index, const struct atyfb_par *par) ^ static 2 warnings generated. vim +/aty_st_lcd +180 drivers/video/fbdev/aty/atyfb_base.c 163 164 u32 aty_ld_lcd(int index, const struct atyfb_par *par) 165 { 166 if (M64_HAS(LT_LCD_REGS)) { 167 return aty_ld_le32(lt_lcd_regs[index], par); 168 } else { 169 unsigned long temp; 170 171 /* write addr byte */ 172 temp = aty_ld_le32(LCD_INDEX, par); 173 aty_st_le32(LCD_INDEX, (temp & ~LCD_INDEX_MASK) | index, par); 174 /* read the register value */ 175 return aty_ld_le32(LCD_DATA, par); 176 } 177 } 178 #else /* defined(CONFIG_PMAC_BACKLIGHT) || defined(CONFIG_FB_ATY_BACKLIGHT) \ 179 defined(CONFIG_FB_ATY_GENERIC_LCD) */ > 180 void aty_st_lcd(int index, u32 val, const struct atyfb_par *par) 181 { } 182 > 183 u32 aty_ld_lcd(int index, const struct atyfb_par *par) 184 { 185 return 0; 186 } 187 #endif /* defined(CONFIG_PMAC_BACKLIGHT) || defined (CONFIG_FB_ATY_GENERIC_LCD) */ 188 --- 0-DAY CI Kernel Test Service, Intel Corporation https://lists.01.org/hyperkitty/list/kbuild-all@xxxxxxxxxxxx
Attachment:
.config.gz
Description: application/gzip
