tree: https://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm.git mm-unstable head: 2563d17c641922648007b2abfe3406e2a9a7faf8 commit: d39928f4ecbaf71fa2249fa75473f0349910d21c [56/239] mm/vmstat: fix a W=1 clang compiler warning config: powerpc-randconfig-002-20241216 (https://download.01.org/0day-ci/archive/20241216/202412160831.5xPilPXv-lkp@xxxxxxxxx/config) compiler: clang version 20.0.0git (https://github.com/llvm/llvm-project 2dc22615fd46ab2566d0f26d5ba234ab12dc4bf8) reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20241216/202412160831.5xPilPXv-lkp@xxxxxxxxx/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@xxxxxxxxx> | Closes: https://lore.kernel.org/oe-kbuild-all/202412160831.5xPilPXv-lkp@xxxxxxxxx/ All errors (new ones prefixed by >>): >> drivers/gpu/drm/renesas/rcar-du/rcar_cmm.c:35:19: error: unused function 'rcar_cmm_read' [-Werror,-Wunused-function] 35 | static inline int rcar_cmm_read(struct rcar_cmm *rcmm, u32 reg) | ^~~~~~~~~~~~~ 1 error generated. vim +/rcar_cmm_read +35 drivers/gpu/drm/renesas/rcar-du/rcar_cmm.c e08e934d6c289ed drivers/gpu/drm/rcar-du/rcar_cmm.c Jacopo Mondi 2019-10-17 34 e08e934d6c289ed drivers/gpu/drm/rcar-du/rcar_cmm.c Jacopo Mondi 2019-10-17 @35 static inline int rcar_cmm_read(struct rcar_cmm *rcmm, u32 reg) e08e934d6c289ed drivers/gpu/drm/rcar-du/rcar_cmm.c Jacopo Mondi 2019-10-17 36 { e08e934d6c289ed drivers/gpu/drm/rcar-du/rcar_cmm.c Jacopo Mondi 2019-10-17 37 return ioread32(rcmm->base + reg); e08e934d6c289ed drivers/gpu/drm/rcar-du/rcar_cmm.c Jacopo Mondi 2019-10-17 38 } e08e934d6c289ed drivers/gpu/drm/rcar-du/rcar_cmm.c Jacopo Mondi 2019-10-17 39 :::::: The code at line 35 was first introduced by commit :::::: e08e934d6c289ed0d6bc222271f69dc35fb2caa5 drm: rcar-du: Add support for CMM :::::: TO: Jacopo Mondi <jacopo+renesas@xxxxxxxxxx> :::::: CC: Laurent Pinchart <laurent.pinchart+renesas@xxxxxxxxxxxxxxxx> -- 0-DAY CI Kernel Test Service https://github.com/intel/lkp-tests/wiki