Hi Wendy, FYI, the error/warning still remains. tree: https://github.com/Xilinx/linux-xlnx master head: 566441779cdc25e377c2baab9277342b09b4249b commit: eb3512d6a32d517e5f7deff8a5ed51ffb0640908 [98/137] misc: xilinx-ai-engine: Add extern functions to request AI engine partition config: sh-allmodconfig (attached as .config) compiler: sh4-linux-gcc (GCC) 9.3.0 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 git checkout eb3512d6a32d517e5f7deff8a5ed51ffb0640908 # save the attached .config to linux build tree COMPILER_INSTALL_PATH=$HOME/0day COMPILER=gcc-9.3.0 make.cross ARCH=sh If you fix the issue, kindly add following tag as appropriate Reported-by: kernel test robot <lkp(a)intel.com&gt; All errors (new ones prefixed by >>): 507 | struct device *aie_partition_request(struct aie_partition_req *req) | ^~~~~~~~~~~~~~~~~~~~~ In file included from drivers/misc/xilinx-ai-engine/ai-engine-dev.c:24: include/linux/xlnx-ai-engine.h:24:1: note: previous definition of 'aie_partition_request' was here 24 | aie_partition_request(struct aie_partition_req *req) | ^~~~~~~~~~~~~~~~~~~~~ 541 | int aie_partition_get_fd(struct device *dev) | ^~~~~~~~~~~~~~~~~~~~ In file included from drivers/misc/xilinx-ai-engine/ai-engine-dev.c:24: include/linux/xlnx-ai-engine.h:29:19: note: previous definition of 'aie_partition_get_fd' was here 29 | static inline int aie_partition_get_fd(struct device *dev) | ^~~~~~~~~~~~~~~~~~~~ 565 | void aie_partition_release(struct device *dev) | ^~~~~~~~~~~~~~~~~~~~~ In file included from drivers/misc/xilinx-ai-engine/ai-engine-dev.c:24: include/linux/xlnx-ai-engine.h:34:20: note: previous definition of 'aie_partition_release' was here 34 | static inline void aie_partition_release(struct device *dev) {} | ^~~~~~~~~~~~~~~~~~~~~ In file included from drivers/misc/xilinx-ai-engine/ai-engine-dev.c:17: include/linux/module.h:128:42: error: redefinition of '__inittest' 128 | static inline initcall_t __maybe_unused __inittest(void) \ | ^~~~~~~~~~ include/linux/device.h:1903:1: note: in expansion of macro 'module_init' 1903 | module_init(__driver##_init); \ | ^~~~~~~~~~~ include/linux/platform_device.h:238:2: note: in expansion of macro 'module_driver' 238 | module_driver(__platform_driver, platform_driver_register, \ | ^~~~~~~~~~~~~ drivers/misc/xilinx-ai-engine/ai-engine-dev.c:605:1: note: in expansion of macro 'module_platform_driver' 605 | module_platform_driver(xilinx_ai_engine_driver); | ^~~~~~~~~~~~~~~~~~~~~~ include/linux/module.h:128:42: note: previous definition of '__inittest' was here 128 | static inline initcall_t __maybe_unused __inittest(void) \ | ^~~~~~~~~~ include/linux/module.h:111:32: note: in expansion of macro 'module_init' 111 | #define postcore_initcall(fn) module_init(fn) | ^~~~~~~~~~~ drivers/misc/xilinx-ai-engine/ai-engine-dev.c:596:1: note: in expansion of macro 'postcore_initcall' 596 | postcore_initcall(xilinx_ai_engine_init); | ^~~~~~~~~~~~~~~~~ include/linux/module.h:130:6: error: redefinition of 'init_module' 130 | int init_module(void) __copy(initfn) __attribute__((alias(#initfn))); | ^~~~~~~~~~~ include/linux/device.h:1903:1: note: in expansion of macro 'module_init' 1903 | module_init(__driver##_init); \ | ^~~~~~~~~~~ include/linux/platform_device.h:238:2: note: in expansion of macro 'module_driver' 238 | module_driver(__platform_driver, platform_driver_register, \ | ^~~~~~~~~~~~~ drivers/misc/xilinx-ai-engine/ai-engine-dev.c:605:1: note: in expansion of macro 'module_platform_driver' 605 | module_platform_driver(xilinx_ai_engine_driver); | ^~~~~~~~~~~~~~~~~~~~~~ include/linux/module.h:130:6: note: previous definition of 'init_module' was here 130 | int init_module(void) __copy(initfn) __attribute__((alias(#initfn))); | ^~~~~~~~~~~ include/linux/module.h:111:32: note: in expansion of macro 'module_init' 111 | #define postcore_initcall(fn) module_init(fn) | ^~~~~~~~~~~ drivers/misc/xilinx-ai-engine/ai-engine-dev.c:596:1: note: in expansion of macro 'postcore_initcall' 596 | postcore_initcall(xilinx_ai_engine_init); | ^~~~~~~~~~~~~~~~~ include/linux/module.h:134:42: error: redefinition of '__exittest' 134 | static inline exitcall_t __maybe_unused __exittest(void) \ | ^~~~~~~~~~ include/linux/device.h:1908:1: note: in expansion of macro 'module_exit' 1908 | module_exit(__driver##_exit); | ^~~~~~~~~~~ include/linux/platform_device.h:238:2: note: in expansion of macro 'module_driver' 238 | module_driver(__platform_driver, platform_driver_register, \ | ^~~~~~~~~~~~~ drivers/misc/xilinx-ai-engine/ai-engine-dev.c:605:1: note: in expansion of macro 'module_platform_driver' 605 | module_platform_driver(xilinx_ai_engine_driver); | ^~~~~~~~~~~~~~~~~~~~~~ include/linux/module.h:134:42: note: previous definition of '__exittest' was here 134 | static inline exitcall_t __maybe_unused __exittest(void) \ | ^~~~~~~~~~ drivers/misc/xilinx-ai-engine/ai-engine-dev.c:603:1: note: in expansion of macro 'module_exit' 603 | module_exit(xilinx_ai_engine_exit); | ^~~~~~~~~~~ include/linux/module.h:136:7: error: redefinition of 'cleanup_module' 136 | void cleanup_module(void) __copy(exitfn) __attribute__((alias(#exitfn))); | ^~~~~~~~~~~~~~ include/linux/device.h:1908:1: note: in expansion of macro 'module_exit' 1908 | module_exit(__driver##_exit); | ^~~~~~~~~~~ include/linux/platform_device.h:238:2: note: in expansion of macro 'module_driver' 238 | module_driver(__platform_driver, platform_driver_register, \ | ^~~~~~~~~~~~~ drivers/misc/xilinx-ai-engine/ai-engine-dev.c:605:1: note: in expansion of macro 'module_platform_driver' 605 | module_platform_driver(xilinx_ai_engine_driver); | ^~~~~~~~~~~~~~~~~~~~~~ include/linux/module.h:136:7: note: previous definition of 'cleanup_module' was here 136 | void cleanup_module(void) __copy(exitfn) __attribute__((alias(#exitfn))); | ^~~~~~~~~~~~~~ drivers/misc/xilinx-ai-engine/ai-engine-dev.c:603:1: note: in expansion of macro 'module_exit' 603 | module_exit(xilinx_ai_engine_exit); | ^~~~~~~~~~~ vim +/aie_partition_request +507 drivers/misc/xilinx-ai-engine/ai-engine-dev.c 495 496 /** 497 * aie_partition_request() - Request an AI engine partition 498 * @req: AI engine partition requesting arguments 499 * @return: pointer to the AI engine partition device, error value for failure. 500 * 501 * This function looks up the AI engine class devices to find the AI engine 502 * partition whose partition ID matches the given partition ID in @req. If 503 * the partition can be found, it will try to request it. It will get a file 504 * for the requested AI engine partition. User can only use the AI engine 505 * partition after it is successfully requested. 506 */ 508 { 509 struct aie_partition *apart; 510 int ret; 511 512 if (!req) 513 return ERR_PTR(-EINVAL); 514 515 apart = aie_class_find_partition_from_id(req->partition_id); 516 if (!apart) 517 return ERR_PTR(-ENODEV); 518 519 ret = mutex_lock_interruptible(&apart->mlock); 520 if (ret) 521 return ERR_PTR(ret); 522 523 ret = aie_partition_get(apart, req); 524 mutex_unlock(&apart->mlock); 525 if (ret) 526 return ERR_PTR(ret); 527 528 return &apart->dev; 529 } 530 EXPORT_SYMBOL_GPL(aie_partition_request); 531 532 /** 533 * aie_partition_get_fd() - get AI engine partition file descriptor 534 * @dev: AI engine partition device pointer 535 * @return: file descriptor for the AI engine partition for success, and 536 * negative value for failure. 537 * 538 * This function allocate a file descriptor for the AI engine requested 539 * partition, and increase the reference count to the AI engine partition file. 540 */ 542 { 543 struct aie_partition *apart; 544 int ret; 545 546 if (!dev) 547 return -EINVAL; 548 549 apart = dev_to_aiepart(dev); 550 551 ret = aie_partition_fd(apart); 552 if (ret < 0) 553 return ret; 554 555 get_file(apart->filep); 556 557 return ret; 558 } 559 EXPORT_SYMBOL_GPL(aie_partition_get_fd); 560 561 /** 562 * aie_partition_release() - Recrease refcount of the AI engine partition 563 * @dev: AI engine partition device 564 */ 566 { 567 struct aie_partition *apart; 568 569 if (WARN_ON(!dev)) 570 return; 571 572 apart = dev_to_aiepart(dev); 573 fput(apart->filep); 574 } 575 EXPORT_SYMBOL_GPL(aie_partition_release); 576 --- 0-DAY CI Kernel Test Service, Intel Corporation https://lists.01.org/hyperkitty/list/kbuild-all@lists.01.org