Hi Dmitry, kernel test robot noticed the following build errors: [auto build test ERROR on c9261bcc1546a564407513e148c35a79a58bc2b9] url: https://github.com/intel-lab-lkp/linux/commits/Dmitry-Baryshkov/drm-msm-dp-split-MMSS_DP_DSC_DTO-register-write-to-a-separate-function/20241223-041635 base: c9261bcc1546a564407513e148c35a79a58bc2b9 patch link: https://lore.kernel.org/r/20241222-fd-dp-audio-fixup-v5-11-370f09492cf6%40linaro.org patch subject: [PATCH v5 11/11] drm/msm/dp: drop the msm_dp_catalog module config: sparc-allmodconfig (https://download.01.org/0day-ci/archive/20241223/202412230903.RMun9kc4-lkp@xxxxxxxxx/config) compiler: sparc64-linux-gcc (GCC) 14.2.0 reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20241223/202412230903.RMun9kc4-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/202412230903.RMun9kc4-lkp@xxxxxxxxx/ All errors (new ones prefixed by >>): drivers/gpu/drm/msm/dp/dp_panel.c: In function 'msm_dp_read_link': >> drivers/gpu/drm/msm/dp/dp_panel.c:33:16: error: implicit declaration of function 'readl_relaxed' [-Wimplicit-function-declaration] 33 | return readl_relaxed(panel->link_base + offset); | ^~~~~~~~~~~~~ drivers/gpu/drm/msm/dp/dp_panel.c: In function 'msm_dp_write_link': >> drivers/gpu/drm/msm/dp/dp_panel.c:43:9: error: implicit declaration of function 'writel' [-Wimplicit-function-declaration] 43 | writel(data, panel->link_base + offset); | ^~~~~~ vim +/readl_relaxed +33 drivers/gpu/drm/msm/dp/dp_panel.c 30 31 static inline u32 msm_dp_read_link(struct msm_dp_panel_private *panel, u32 offset) 32 { > 33 return readl_relaxed(panel->link_base + offset); 34 } 35 36 static inline void msm_dp_write_link(struct msm_dp_panel_private *panel, 37 u32 offset, u32 data) 38 { 39 /* 40 * To make sure link reg writes happens before any other operation, 41 * this function uses writel() instread of writel_relaxed() 42 */ > 43 writel(data, panel->link_base + offset); 44 } 45 -- 0-DAY CI Kernel Test Service https://github.com/intel/lkp-tests/wiki