Hi mac.shen, kernel test robot noticed the following build warnings:
[auto build test WARNING on drm-misc/drm-misc-next] [also build test WARNING on linus/master v6.7-rc2 next-20231124] [cannot apply to pza/reset/next pza/imx-drm/next] [If your patch is applied to the wrong git tree, kindly drop us a note. And when submitting patch, we suggest to use '--base' as documented in https://git-scm.com/docs/git-format-patch#_base_tree_information] url: https://github.com/intel-lab-lkp/linux/commits/mac-shen/drm-mediatek-dp-Add-the-HDCP-feature-for-DisplayPort/20231125-152640 base: git://anongit.freedesktop.org/drm/drm-misc drm-misc-next patch link: https://lore.kernel.org/r/20231124085346.26602-1-mac.shen%40mediatek.com patch subject: [PATCH] drm/mediatek/dp: Add the HDCP feature for DisplayPort config: arm-allmodconfig (https://download.01.org/0day-ci/archive/20231125/202311252346.ybtdeecp-...@intel.com/config) compiler: arm-linux-gnueabi-gcc (GCC) 13.2.0 reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20231125/202311252346.ybtdeecp-...@intel.com/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 <l...@intel.com> | Closes: https://lore.kernel.org/oe-kbuild-all/202311252346.ybtdeecp-...@intel.com/ All warnings (new ones prefixed by >>): >> drivers/gpu/drm/mediatek/mtk_dp.c:349:5: warning: no previous prototype for >> 'mtk_dp_read' [-Wmissing-prototypes] 349 | u32 mtk_dp_read(struct mtk_dp *mtk_dp, u32 offset) | ^~~~~~~~~~~ >> drivers/gpu/drm/mediatek/mtk_dp.c:376:5: warning: no previous prototype for >> 'mtk_dp_update_bits' [-Wmissing-prototypes] 376 | int mtk_dp_update_bits(struct mtk_dp *mtk_dp, u32 offset, | ^~~~~~~~~~~~~~~~~~ In file included from include/linux/device.h:15, from include/drm/display/drm_dp_aux_bus.h:13, from drivers/gpu/drm/mediatek/mtk_dp.c:7: drivers/gpu/drm/mediatek/mtk_dp.c: In function 'mtk_dp_hpd_sink_event': >> include/drm/drm_print.h:456:54: warning: format '%ld' expects argument of >> type 'long int', but argument 3 has type 'ssize_t' {aka 'int'} [-Wformat=] 456 | dev_##level##type((drm) ? (drm)->dev : NULL, "[drm] " fmt, ##__VA_ARGS__) | ^~~~~~~~ include/linux/dev_printk.h:110:30: note: in definition of macro 'dev_printk_index_wrap' 110 | _p_func(dev, fmt, ##__VA_ARGS__); \ | ^~~ include/linux/dev_printk.h:150:58: note: in expansion of macro 'dev_fmt' 150 | dev_printk_index_wrap(_dev_info, KERN_INFO, dev, dev_fmt(fmt), ##__VA_ARGS__) | ^~~~~~~ include/drm/drm_print.h:456:9: note: in expansion of macro 'dev_info' 456 | dev_##level##type((drm) ? (drm)->dev : NULL, "[drm] " fmt, ##__VA_ARGS__) | ^~~~ include/drm/drm_print.h:460:9: note: in expansion of macro '__drm_printk' 460 | __drm_printk((drm), info,, fmt, ##__VA_ARGS__) | ^~~~~~~~~~~~ drivers/gpu/drm/mediatek/mtk_dp.c:1905:17: note: in expansion of macro 'drm_info' 1905 | drm_info(mtk_dp->drm_dev, "Read sink count failed: %ld\n", ret); | ^~~~~~~~ >> include/drm/drm_print.h:456:54: warning: format '%ld' expects argument of >> type 'long int', but argument 3 has type 'ssize_t' {aka 'int'} [-Wformat=] 456 | dev_##level##type((drm) ? (drm)->dev : NULL, "[drm] " fmt, ##__VA_ARGS__) | ^~~~~~~~ include/linux/dev_printk.h:110:30: note: in definition of macro 'dev_printk_index_wrap' 110 | _p_func(dev, fmt, ##__VA_ARGS__); \ | ^~~ include/linux/dev_printk.h:150:58: note: in expansion of macro 'dev_fmt' 150 | dev_printk_index_wrap(_dev_info, KERN_INFO, dev, dev_fmt(fmt), ##__VA_ARGS__) | ^~~~~~~ include/drm/drm_print.h:456:9: note: in expansion of macro 'dev_info' 456 | dev_##level##type((drm) ? (drm)->dev : NULL, "[drm] " fmt, ##__VA_ARGS__) | ^~~~ include/drm/drm_print.h:460:9: note: in expansion of macro '__drm_printk' 460 | __drm_printk((drm), info,, fmt, ##__VA_ARGS__) | ^~~~~~~~~~~~ drivers/gpu/drm/mediatek/mtk_dp.c:1911:17: note: in expansion of macro 'drm_info' 1911 | drm_info(mtk_dp->drm_dev, | ^~~~~~~~ drivers/gpu/drm/mediatek/mtk_dp.c: At top level: >> drivers/gpu/drm/mediatek/mtk_dp.c:2663:6: warning: no previous prototype for >> 'mtk_dp_check_hdcp_version' [-Wmissing-prototypes] 2663 | void mtk_dp_check_hdcp_version(struct mtk_dp *mtk_dp, bool only_hdcp1x) | ^~~~~~~~~~~~~~~~~~~~~~~~~ -- >> drivers/gpu/drm/mediatek/ca/tlcDpHdcp.c:38: warning: Function parameter or >> member 'dp_tee_priv' not described in 'dp_tee_op_send' >> drivers/gpu/drm/mediatek/ca/tlcDpHdcp.c:38: warning: Function parameter or >> member 'cmd_id' not described in 'dp_tee_op_send' >> drivers/gpu/drm/mediatek/ca/tlcDpHdcp.c:38: warning: Excess function >> parameter 'chip' description in 'dp_tee_op_send' vim +/mtk_dp_read +349 drivers/gpu/drm/mediatek/mtk_dp.c 348 > 349 u32 mtk_dp_read(struct mtk_dp *mtk_dp, u32 offset) 350 { 351 return mtk_dp_reg_read(mtk_dp->regs, offset); 352 } 353 354 static int mtk_dp_write(struct mtk_dp *mtk_dp, u32 offset, u32 val) 355 { 356 int ret = regmap_write(mtk_dp->regs, offset, val); 357 358 if (ret) 359 dev_err(mtk_dp->dev, 360 "Failed to write register 0x%x with value 0x%x\n", 361 offset, val); 362 return ret; 363 } 364 365 int mtk_dp_reg_update_bits(struct regmap *regs, u32 offset, 366 u32 val, u32 mask) 367 { 368 int ret = regmap_update_bits(regs, offset, mask, val); 369 370 if (ret) 371 pr_err("Failed to update register 0x%x with value 0x%x, mask 0x%x\n", 372 offset, val, mask); 373 return ret; 374 } 375 > 376 int mtk_dp_update_bits(struct mtk_dp *mtk_dp, u32 offset, 377 u32 val, u32 mask) 378 { 379 return mtk_dp_reg_update_bits(mtk_dp->regs, offset, val, mask); 380 } 381 -- 0-DAY CI Kernel Test Service https://github.com/intel/lkp-tests/wiki
