Hi Prashant, I love your patch! Perhaps something to improve: [auto build test WARNING on drm/drm-next] [also build test WARNING on usb/usb-testing v5.19-rc1 next-20220608] [cannot apply to balbi-usb/testing/next peter-chen-usb/for-usb-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] url: https://github.com/intel-lab-lkp/linux/commits/Prashant-Malani/usb-typec-Introduce-typec-switch-binding/20220608-042545 base: git://anongit.freedesktop.org/drm/drm drm-next config: i386-randconfig-a006 (https://download.01.org/0day-ci/archive/20220609/202206090139.lV7qgO5F-lkp@xxxxxxxxx/config) compiler: clang version 15.0.0 (https://github.com/llvm/llvm-project b92436efcb7813fc481b30f2593a4907568d917a) 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://github.com/intel-lab-lkp/linux/commit/2ac4609c73d7bb4d1a585dae84559967ced3bad6 git remote add linux-review https://github.com/intel-lab-lkp/linux git fetch --no-tags linux-review Prashant-Malani/usb-typec-Introduce-typec-switch-binding/20220608-042545 git checkout 2ac4609c73d7bb4d1a585dae84559967ced3bad6 # save the config file mkdir build_dir && cp config build_dir/.config COMPILER_INSTALL_PATH=$HOME/0day COMPILER=clang make.cross W=1 O=build_dir ARCH=i386 SHELL=/bin/bash drivers/gpu/drm/bridge/analogix/ If you fix the issue, kindly add following tag where applicable Reported-by: kernel test robot <lkp@xxxxxxxxx> All warnings (new ones prefixed by >>): In file included from drivers/gpu/drm/bridge/analogix/anx7625.c:18: >> include/linux/usb/typec_mux.h:83:19: warning: no previous prototype for function 'fwnode_typec_mux_get' [-Wmissing-prototypes] struct typec_mux *fwnode_typec_mux_get(struct fwnode_handle *fwnode, ^ include/linux/usb/typec_mux.h:83:1: note: declare 'static' if the function is not intended to be used outside of this translation unit struct typec_mux *fwnode_typec_mux_get(struct fwnode_handle *fwnode, ^ static >> include/linux/usb/typec_mux.h:89:6: warning: no previous prototype for function 'typec_mux_put' [-Wmissing-prototypes] void typec_mux_put(struct typec_mux *mux) {} ^ include/linux/usb/typec_mux.h:89:1: note: declare 'static' if the function is not intended to be used outside of this translation unit void typec_mux_put(struct typec_mux *mux) {} ^ static >> include/linux/usb/typec_mux.h:91:5: warning: no previous prototype for function 'typec_mux_set' [-Wmissing-prototypes] int typec_mux_set(struct typec_mux *mux, struct typec_mux_state *state) ^ include/linux/usb/typec_mux.h:91:1: note: declare 'static' if the function is not intended to be used outside of this translation unit int typec_mux_set(struct typec_mux *mux, struct typec_mux_state *state) ^ static >> include/linux/usb/typec_mux.h:103:1: warning: no previous prototype for function 'typec_mux_register' [-Wmissing-prototypes] typec_mux_register(struct device *parent, const struct typec_mux_desc *desc) ^ include/linux/usb/typec_mux.h:102:1: note: declare 'static' if the function is not intended to be used outside of this translation unit struct typec_mux * ^ static >> include/linux/usb/typec_mux.h:107:6: warning: no previous prototype for function 'typec_mux_unregister' [-Wmissing-prototypes] void typec_mux_unregister(struct typec_mux *mux) {} ^ include/linux/usb/typec_mux.h:107:1: note: declare 'static' if the function is not intended to be used outside of this translation unit void typec_mux_unregister(struct typec_mux *mux) {} ^ static >> include/linux/usb/typec_mux.h:109:6: warning: no previous prototype for function 'typec_mux_set_drvdata' [-Wmissing-prototypes] void typec_mux_set_drvdata(struct typec_mux *mux, void *data) {} ^ include/linux/usb/typec_mux.h:109:1: note: declare 'static' if the function is not intended to be used outside of this translation unit void typec_mux_set_drvdata(struct typec_mux *mux, void *data) {} ^ static >> include/linux/usb/typec_mux.h:110:7: warning: no previous prototype for function 'typec_mux_get_drvdata' [-Wmissing-prototypes] void *typec_mux_get_drvdata(struct typec_mux *mux) ^ include/linux/usb/typec_mux.h:110:1: note: declare 'static' if the function is not intended to be used outside of this translation unit void *typec_mux_get_drvdata(struct typec_mux *mux) ^ static drivers/gpu/drm/bridge/analogix/anx7625.c:2617:23: error: incompatible pointer types assigning to 'struct typec_mux_dev *' from 'struct typec_mux *' [-Werror,-Wincompatible-pointer-types] port_data->typec_mux = typec_mux_register(dev, &mux_desc); ^ ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ drivers/gpu/drm/bridge/analogix/anx7625.c:2631:24: error: incompatible pointer types passing 'struct typec_mux_dev *' to parameter of type 'struct typec_mux *' [-Werror,-Wincompatible-pointer-types] typec_mux_unregister(ctx->typec_ports[i].typec_mux); ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~ include/linux/usb/typec_mux.h:107:45: note: passing argument to parameter 'mux' here void typec_mux_unregister(struct typec_mux *mux) {} ^ 7 warnings and 2 errors generated. vim +/fwnode_typec_mux_get +83 include/linux/usb/typec_mux.h 0835afe6b807ae Prashant Malani 2022-06-07 82 0835afe6b807ae Prashant Malani 2022-06-07 @83 struct typec_mux *fwnode_typec_mux_get(struct fwnode_handle *fwnode, 0835afe6b807ae Prashant Malani 2022-06-07 84 const struct typec_altmode_desc *desc) 0835afe6b807ae Prashant Malani 2022-06-07 85 { 0835afe6b807ae Prashant Malani 2022-06-07 86 return ERR_PTR(-EOPNOTSUPP); 0835afe6b807ae Prashant Malani 2022-06-07 87 } 0835afe6b807ae Prashant Malani 2022-06-07 88 0835afe6b807ae Prashant Malani 2022-06-07 @89 void typec_mux_put(struct typec_mux *mux) {} 0835afe6b807ae Prashant Malani 2022-06-07 90 0835afe6b807ae Prashant Malani 2022-06-07 @91 int typec_mux_set(struct typec_mux *mux, struct typec_mux_state *state) 0835afe6b807ae Prashant Malani 2022-06-07 92 { 0835afe6b807ae Prashant Malani 2022-06-07 93 return -EOPNOTSUPP; 0835afe6b807ae Prashant Malani 2022-06-07 94 } 0835afe6b807ae Prashant Malani 2022-06-07 95 0835afe6b807ae Prashant Malani 2022-06-07 96 static inline struct typec_mux * 0835afe6b807ae Prashant Malani 2022-06-07 97 typec_mux_get(struct device *dev, const struct typec_altmode_desc *desc) 0835afe6b807ae Prashant Malani 2022-06-07 98 { 0835afe6b807ae Prashant Malani 2022-06-07 99 return ERR_PTR(-EOPNOTSUPP); 0835afe6b807ae Prashant Malani 2022-06-07 100 } 0835afe6b807ae Prashant Malani 2022-06-07 101 0835afe6b807ae Prashant Malani 2022-06-07 102 struct typec_mux * 0835afe6b807ae Prashant Malani 2022-06-07 @103 typec_mux_register(struct device *parent, const struct typec_mux_desc *desc) 0835afe6b807ae Prashant Malani 2022-06-07 104 { 0835afe6b807ae Prashant Malani 2022-06-07 105 return ERR_PTR(-EOPNOTSUPP); 0835afe6b807ae Prashant Malani 2022-06-07 106 } 0835afe6b807ae Prashant Malani 2022-06-07 @107 void typec_mux_unregister(struct typec_mux *mux) {} 0835afe6b807ae Prashant Malani 2022-06-07 108 0835afe6b807ae Prashant Malani 2022-06-07 @109 void typec_mux_set_drvdata(struct typec_mux *mux, void *data) {} 0835afe6b807ae Prashant Malani 2022-06-07 @110 void *typec_mux_get_drvdata(struct typec_mux *mux) 0835afe6b807ae Prashant Malani 2022-06-07 111 { 0835afe6b807ae Prashant Malani 2022-06-07 112 return ERR_PTR(-EOPNOTSUPP); 0835afe6b807ae Prashant Malani 2022-06-07 113 } 0835afe6b807ae Prashant Malani 2022-06-07 114 -- 0-DAY CI Kernel Test Service https://01.org/lkp
