Hi Frank, kernel test robot noticed the following build warnings: [auto build test WARNING on robh/for-next] [also build test WARNING on linus/master v6.6-rc6 next-20231020] [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/Frank-Li/i3c-add-slave-mode-support/20231019-055940 base: https://git.kernel.org/pub/scm/linux/kernel/git/robh/linux.git for-next patch link: https://lore.kernel.org/r/20231018215809.3477437-2-Frank.Li%40nxp.com patch subject: [PATCH 1/5] i3c: add slave mode support config: microblaze-allyesconfig (https://download.01.org/0day-ci/archive/20231021/202310211527.TeVTMxA7-lkp@xxxxxxxxx/config) compiler: microblaze-linux-gcc (GCC) 13.2.0 reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20231021/202310211527.TeVTMxA7-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 <yujie.liu@xxxxxxxxx> | Closes: https://lore.kernel.org/r/202310211527.TeVTMxA7-lkp@xxxxxxxxx/ All warnings (new ones prefixed by >>): In file included from drivers/i3c/slave.c:11: include/linux/i3c/slave.h: In function 'i3c_slave_ctrl_alloc_request': include/linux/i3c/slave.h:272:23: error: implicit declaration of function 'kzalloc' [-Werror=implicit-function-declaration] 272 | req = kzalloc(sizeof(*req), gfp_flags); | ^~~~~~~ >> include/linux/i3c/slave.h:272:21: warning: assignment to 'struct i3c_request *' from 'int' makes pointer from integer without a cast [-Wint-conversion] 272 | req = kzalloc(sizeof(*req), gfp_flags); | ^ include/linux/i3c/slave.h: In function 'i3c_slave_ctrl_free_request': include/linux/i3c/slave.h:298:17: error: implicit declaration of function 'kfree'; did you mean 'kvfree'? [-Werror=implicit-function-declaration] 298 | kfree(req); | ^~~~~ | kvfree In file included from drivers/i3c/slave.c:13: include/linux/slab.h: At top level: >> include/linux/slab.h:227:6: warning: conflicting types for 'kfree'; have 'void(const void *)' 227 | void kfree(const void *objp); | ^~~~~ include/linux/i3c/slave.h:298:17: note: previous implicit declaration of 'kfree' with type 'void(const void *)' 298 | kfree(req); | ^~~~~ include/linux/slab.h:718:37: error: conflicting types for 'kzalloc'; have 'void *(size_t, gfp_t)' {aka 'void *(unsigned int, unsigned int)'} 718 | static inline __alloc_size(1) void *kzalloc(size_t size, gfp_t flags) | ^~~~~~~ include/linux/i3c/slave.h:272:23: note: previous implicit declaration of 'kzalloc' with type 'int()' 272 | req = kzalloc(sizeof(*req), gfp_flags); | ^~~~~~~ cc1: some warnings being treated as errors vim +272 include/linux/i3c/slave.h a63b2858bd837d Frank Li 2023-10-18 256 a63b2858bd837d Frank Li 2023-10-18 257 /** a63b2858bd837d Frank Li 2023-10-18 258 * i3c_slave_ctrl_alloc_request() - Alloc an I3C transfer a63b2858bd837d Frank Li 2023-10-18 259 * @ctrl: I3C slave controller device a63b2858bd837d Frank Li 2023-10-18 260 * gfp_flags: additional gfp flags used when allocating the buffers a63b2858bd837d Frank Li 2023-10-18 261 * a63b2858bd837d Frank Li 2023-10-18 262 * Returns: Zero for success, or an error code in case of failure a63b2858bd837d Frank Li 2023-10-18 263 */ a63b2858bd837d Frank Li 2023-10-18 264 static inline struct i3c_request * a63b2858bd837d Frank Li 2023-10-18 265 i3c_slave_ctrl_alloc_request(struct i3c_slave_ctrl *ctrl, gfp_t gfp_flags) a63b2858bd837d Frank Li 2023-10-18 266 { a63b2858bd837d Frank Li 2023-10-18 267 struct i3c_request *req = NULL; a63b2858bd837d Frank Li 2023-10-18 268 a63b2858bd837d Frank Li 2023-10-18 269 if (ctrl && ctrl->ops && ctrl->ops->alloc_request) a63b2858bd837d Frank Li 2023-10-18 270 req = ctrl->ops->alloc_request(ctrl, gfp_flags); a63b2858bd837d Frank Li 2023-10-18 271 else a63b2858bd837d Frank Li 2023-10-18 @272 req = kzalloc(sizeof(*req), gfp_flags); a63b2858bd837d Frank Li 2023-10-18 273 a63b2858bd837d Frank Li 2023-10-18 274 if (req) a63b2858bd837d Frank Li 2023-10-18 275 req->ctrl = ctrl; a63b2858bd837d Frank Li 2023-10-18 276 a63b2858bd837d Frank Li 2023-10-18 277 return req; a63b2858bd837d Frank Li 2023-10-18 278 } a63b2858bd837d Frank Li 2023-10-18 279 -- 0-DAY CI Kernel Test Service https://github.com/intel/lkp-tests/wiki
