tree: https://git.kernel.org/pub/scm/linux/kernel/git/next/linux-next.git master head: cb153b68ff91cbc434f3de70ac549e110543e1bb commit: 6dd199064dd86127030b5bc59d4058370b6c8310 [5968/11353] clk: mediatek: pll: Implement unregister API config: sh-randconfig-r002-20220308 (https://download.01.org/0day-ci/archive/20220309/202203090714.kf7arAXf-lkp@xxxxxxxxx/config) compiler: sh4-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://git.kernel.org/pub/scm/linux/kernel/git/next/linux-next.git/commit/?id=6dd199064dd86127030b5bc59d4058370b6c8310 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 6dd199064dd86127030b5bc59d4058370b6c8310 # 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=sh SHELL=/bin/bash drivers/clk/mediatek/ 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/clk/mediatek/clk-pll.c: In function 'mtk_clk_unregister_plls': >> drivers/clk/mediatek/clk-pll.c:418:23: warning: variable 'base' set but not used [-Wunused-but-set-variable] 418 | __iomem void *base = NULL; | ^~~~ vim +/base +418 drivers/clk/mediatek/clk-pll.c 414 415 void mtk_clk_unregister_plls(const struct mtk_pll_data *plls, int num_plls, 416 struct clk_onecell_data *clk_data) 417 { > 418 __iomem void *base = NULL; 419 int i; 420 421 if (!clk_data) 422 return; 423 424 for (i = num_plls; i > 0; i--) { 425 const struct mtk_pll_data *pll = &plls[i - 1]; 426 427 if (IS_ERR_OR_NULL(clk_data->clks[pll->id])) 428 continue; 429 430 /* 431 * This is quite ugly but unfortunately the clks don't have 432 * any device tied to them, so there's no place to store the 433 * pointer to the I/O region base address. We have to fetch 434 * it from one of the registered clks. 435 */ 436 base = mtk_clk_pll_get_base(clk_data->clks[pll->id], pll); 437 438 mtk_clk_unregister_pll(clk_data->clks[pll->id]); 439 clk_data->clks[pll->id] = ERR_PTR(-ENOENT); 440 } 441 442 iounmap(base); 443 } 444 EXPORT_SYMBOL_GPL(mtk_clk_unregister_plls); 445 --- 0-DAY CI Kernel Test Service, Intel Corporation https://lists.01.org/hyperkitty/list/kbuild-all@xxxxxxxxxxxx
