Hi Joel, Thank you for the patch! Yet something to improve: [auto build test ERROR on v5.19-rc6] [also build test ERROR on linus/master] [cannot apply to staging/staging-testing next-20220720] [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/Joel-Slebodnick/remove-custom-return-values-in-vc04_services/20220713-022038 base: 32346491ddf24599decca06190ebca03ff9de7f8 config: powerpc-randconfig-r001-20220718 (https://download.01.org/0day-ci/archive/20220721/202207210405.zW5H9djg-lkp@xxxxxxxxx/config) compiler: clang version 15.0.0 (https://github.com/llvm/llvm-project dd5635541cd7bbd62cd59b6694dfb759b6e9a0d8) 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 # install powerpc cross compiling tool for clang build # apt-get install binutils-powerpc-linux-gnu # https://github.com/intel-lab-lkp/linux/commit/cc7c5d7c4bbc057cd5426e71360c064d43018aba git remote add linux-review https://github.com/intel-lab-lkp/linux git fetch --no-tags linux-review Joel-Slebodnick/remove-custom-return-values-in-vc04_services/20220713-022038 git checkout cc7c5d7c4bbc057cd5426e71360c064d43018aba # 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=powerpc SHELL=/bin/bash drivers/staging/vc04_services/vchiq-mmal/ If you fix the issue, kindly add following tag where applicable Reported-by: kernel test robot <lkp@xxxxxxxxx> All errors (new ones prefixed by >>): >> drivers/staging/vc04_services/vchiq-mmal/mmal-vchiq.c:551:26: error: incomplete result type 'enum vchiq_status' in function definition static enum vchiq_status service_callback(enum vchiq_reason reason, ^ drivers/staging/vc04_services/vchiq-mmal/mmal-vchiq.c:551:13: note: forward declaration of 'enum vchiq_status' static enum vchiq_status service_callback(enum vchiq_reason reason, ^ >> drivers/staging/vc04_services/vchiq-mmal/mmal-vchiq.c:562:10: error: use of undeclared identifier 'VCHIQ_SUCCESS' return VCHIQ_SUCCESS; ^ drivers/staging/vc04_services/vchiq-mmal/mmal-vchiq.c:646:9: error: use of undeclared identifier 'VCHIQ_SUCCESS' return VCHIQ_SUCCESS; ^ 3 errors generated. vim +551 drivers/staging/vc04_services/vchiq-mmal/mmal-vchiq.c 7b3ad5abf027b7 drivers/staging/media/platform/bcm2835/mmal-vchiq.c Eric Anholt 2017-01-27 549 7b3ad5abf027b7 drivers/staging/media/platform/bcm2835/mmal-vchiq.c Eric Anholt 2017-01-27 550 /* incoming event service callback */ 3c5da06f996995 drivers/staging/vc04_services/vchiq-mmal/mmal-vchiq.c Nicolas Saenz Julienne 2020-06-29 @551 static enum vchiq_status service_callback(enum vchiq_reason reason, 3c5da06f996995 drivers/staging/vc04_services/vchiq-mmal/mmal-vchiq.c Nicolas Saenz Julienne 2020-06-29 552 struct vchiq_header *header, 1e5f7325636abd drivers/staging/vc04_services/vchiq-mmal/mmal-vchiq.c Baidyanath Kundu 2020-07-13 553 unsigned int handle, void *bulk_ctx) 7b3ad5abf027b7 drivers/staging/media/platform/bcm2835/mmal-vchiq.c Eric Anholt 2017-01-27 554 { 3c5da06f996995 drivers/staging/vc04_services/vchiq-mmal/mmal-vchiq.c Nicolas Saenz Julienne 2020-06-29 555 struct vchiq_mmal_instance *instance = vchiq_get_service_userdata(handle); 7b3ad5abf027b7 drivers/staging/media/platform/bcm2835/mmal-vchiq.c Eric Anholt 2017-01-27 556 u32 msg_len; 7b3ad5abf027b7 drivers/staging/media/platform/bcm2835/mmal-vchiq.c Eric Anholt 2017-01-27 557 struct mmal_msg *msg; 4e6bafdfb9f394 drivers/staging/vc04_services/bcm2835-camera/mmal-vchiq.c Michael Zoran 2017-03-08 558 struct mmal_msg_context *msg_context; 7b3ad5abf027b7 drivers/staging/media/platform/bcm2835/mmal-vchiq.c Eric Anholt 2017-01-27 559 7b3ad5abf027b7 drivers/staging/media/platform/bcm2835/mmal-vchiq.c Eric Anholt 2017-01-27 560 if (!instance) { 7b3ad5abf027b7 drivers/staging/media/platform/bcm2835/mmal-vchiq.c Eric Anholt 2017-01-27 561 pr_err("Message callback passed NULL instance\n"); 3c5da06f996995 drivers/staging/vc04_services/vchiq-mmal/mmal-vchiq.c Nicolas Saenz Julienne 2020-06-29 @562 return VCHIQ_SUCCESS; 7b3ad5abf027b7 drivers/staging/media/platform/bcm2835/mmal-vchiq.c Eric Anholt 2017-01-27 563 } 7b3ad5abf027b7 drivers/staging/media/platform/bcm2835/mmal-vchiq.c Eric Anholt 2017-01-27 564 7b3ad5abf027b7 drivers/staging/media/platform/bcm2835/mmal-vchiq.c Eric Anholt 2017-01-27 565 switch (reason) { 469fbb24ced37f drivers/staging/vc04_services/vchiq-mmal/mmal-vchiq.c Nicolas Saenz Julienne 2020-06-29 566 case VCHIQ_MESSAGE_AVAILABLE: 3c5da06f996995 drivers/staging/vc04_services/vchiq-mmal/mmal-vchiq.c Nicolas Saenz Julienne 2020-06-29 567 msg = (void *)header->data; 3c5da06f996995 drivers/staging/vc04_services/vchiq-mmal/mmal-vchiq.c Nicolas Saenz Julienne 2020-06-29 568 msg_len = header->size; 7b3ad5abf027b7 drivers/staging/media/platform/bcm2835/mmal-vchiq.c Eric Anholt 2017-01-27 569 7b3ad5abf027b7 drivers/staging/media/platform/bcm2835/mmal-vchiq.c Eric Anholt 2017-01-27 570 DBG_DUMP_MSG(msg, msg_len, "<<< reply message"); 7b3ad5abf027b7 drivers/staging/media/platform/bcm2835/mmal-vchiq.c Eric Anholt 2017-01-27 571 7b3ad5abf027b7 drivers/staging/media/platform/bcm2835/mmal-vchiq.c Eric Anholt 2017-01-27 572 /* handling is different for buffer messages */ 7b3ad5abf027b7 drivers/staging/media/platform/bcm2835/mmal-vchiq.c Eric Anholt 2017-01-27 573 switch (msg->h.type) { 7b3ad5abf027b7 drivers/staging/media/platform/bcm2835/mmal-vchiq.c Eric Anholt 2017-01-27 574 case MMAL_MSG_TYPE_BUFFER_FROM_HOST: 3c5da06f996995 drivers/staging/vc04_services/vchiq-mmal/mmal-vchiq.c Nicolas Saenz Julienne 2020-06-29 575 vchiq_release_message(handle, header); 7b3ad5abf027b7 drivers/staging/media/platform/bcm2835/mmal-vchiq.c Eric Anholt 2017-01-27 576 break; 7b3ad5abf027b7 drivers/staging/media/platform/bcm2835/mmal-vchiq.c Eric Anholt 2017-01-27 577 7b3ad5abf027b7 drivers/staging/media/platform/bcm2835/mmal-vchiq.c Eric Anholt 2017-01-27 578 case MMAL_MSG_TYPE_EVENT_TO_HOST: 7b3ad5abf027b7 drivers/staging/media/platform/bcm2835/mmal-vchiq.c Eric Anholt 2017-01-27 579 event_to_host_cb(instance, msg, msg_len); 3c5da06f996995 drivers/staging/vc04_services/vchiq-mmal/mmal-vchiq.c Nicolas Saenz Julienne 2020-06-29 580 vchiq_release_message(handle, header); 7b3ad5abf027b7 drivers/staging/media/platform/bcm2835/mmal-vchiq.c Eric Anholt 2017-01-27 581 7b3ad5abf027b7 drivers/staging/media/platform/bcm2835/mmal-vchiq.c Eric Anholt 2017-01-27 582 break; 7b3ad5abf027b7 drivers/staging/media/platform/bcm2835/mmal-vchiq.c Eric Anholt 2017-01-27 583 7b3ad5abf027b7 drivers/staging/media/platform/bcm2835/mmal-vchiq.c Eric Anholt 2017-01-27 584 case MMAL_MSG_TYPE_BUFFER_TO_HOST: 7b3ad5abf027b7 drivers/staging/media/platform/bcm2835/mmal-vchiq.c Eric Anholt 2017-01-27 585 buffer_to_host_cb(instance, msg, msg_len); 3c5da06f996995 drivers/staging/vc04_services/vchiq-mmal/mmal-vchiq.c Nicolas Saenz Julienne 2020-06-29 586 vchiq_release_message(handle, header); 7b3ad5abf027b7 drivers/staging/media/platform/bcm2835/mmal-vchiq.c Eric Anholt 2017-01-27 587 break; 7b3ad5abf027b7 drivers/staging/media/platform/bcm2835/mmal-vchiq.c Eric Anholt 2017-01-27 588 7b3ad5abf027b7 drivers/staging/media/platform/bcm2835/mmal-vchiq.c Eric Anholt 2017-01-27 589 default: 60d5c020bbc0e4 drivers/staging/media/platform/bcm2835/mmal-vchiq.c Eric Anholt 2017-01-27 590 /* messages dependent on header context to complete */ 4bc58d16753b99 drivers/staging/vc04_services/bcm2835-camera/mmal-vchiq.c Aishwarya Pant 2017-02-28 591 if (!msg->h.context) { 7b3ad5abf027b7 drivers/staging/media/platform/bcm2835/mmal-vchiq.c Eric Anholt 2017-01-27 592 pr_err("received message context was null!\n"); 3c5da06f996995 drivers/staging/vc04_services/vchiq-mmal/mmal-vchiq.c Nicolas Saenz Julienne 2020-06-29 593 vchiq_release_message(handle, header); 7b3ad5abf027b7 drivers/staging/media/platform/bcm2835/mmal-vchiq.c Eric Anholt 2017-01-27 594 break; 7b3ad5abf027b7 drivers/staging/media/platform/bcm2835/mmal-vchiq.c Eric Anholt 2017-01-27 595 } 7b3ad5abf027b7 drivers/staging/media/platform/bcm2835/mmal-vchiq.c Eric Anholt 2017-01-27 596 4e6bafdfb9f394 drivers/staging/vc04_services/bcm2835-camera/mmal-vchiq.c Michael Zoran 2017-03-08 597 msg_context = lookup_msg_context(instance, 4e6bafdfb9f394 drivers/staging/vc04_services/bcm2835-camera/mmal-vchiq.c Michael Zoran 2017-03-08 598 msg->h.context); 4e6bafdfb9f394 drivers/staging/vc04_services/bcm2835-camera/mmal-vchiq.c Michael Zoran 2017-03-08 599 if (!msg_context) { 4e6bafdfb9f394 drivers/staging/vc04_services/bcm2835-camera/mmal-vchiq.c Michael Zoran 2017-03-08 600 pr_err("received invalid message context %u!\n", 4e6bafdfb9f394 drivers/staging/vc04_services/bcm2835-camera/mmal-vchiq.c Michael Zoran 2017-03-08 601 msg->h.context); 3c5da06f996995 drivers/staging/vc04_services/vchiq-mmal/mmal-vchiq.c Nicolas Saenz Julienne 2020-06-29 602 vchiq_release_message(handle, header); 4e6bafdfb9f394 drivers/staging/vc04_services/bcm2835-camera/mmal-vchiq.c Michael Zoran 2017-03-08 603 break; 4e6bafdfb9f394 drivers/staging/vc04_services/bcm2835-camera/mmal-vchiq.c Michael Zoran 2017-03-08 604 } 4e6bafdfb9f394 drivers/staging/vc04_services/bcm2835-camera/mmal-vchiq.c Michael Zoran 2017-03-08 605 7b3ad5abf027b7 drivers/staging/media/platform/bcm2835/mmal-vchiq.c Eric Anholt 2017-01-27 606 /* fill in context values */ 3c5da06f996995 drivers/staging/vc04_services/vchiq-mmal/mmal-vchiq.c Nicolas Saenz Julienne 2020-06-29 607 msg_context->u.sync.msg_handle = header; 4e6bafdfb9f394 drivers/staging/vc04_services/bcm2835-camera/mmal-vchiq.c Michael Zoran 2017-03-08 608 msg_context->u.sync.msg = msg; 4e6bafdfb9f394 drivers/staging/vc04_services/bcm2835-camera/mmal-vchiq.c Michael Zoran 2017-03-08 609 msg_context->u.sync.msg_len = msg_len; 7b3ad5abf027b7 drivers/staging/media/platform/bcm2835/mmal-vchiq.c Eric Anholt 2017-01-27 610 7b3ad5abf027b7 drivers/staging/media/platform/bcm2835/mmal-vchiq.c Eric Anholt 2017-01-27 611 /* todo: should this check (completion_done() 7b3ad5abf027b7 drivers/staging/media/platform/bcm2835/mmal-vchiq.c Eric Anholt 2017-01-27 612 * == 1) for no one waiting? or do we need a 7b3ad5abf027b7 drivers/staging/media/platform/bcm2835/mmal-vchiq.c Eric Anholt 2017-01-27 613 * flag to tell us the completion has been 7b3ad5abf027b7 drivers/staging/media/platform/bcm2835/mmal-vchiq.c Eric Anholt 2017-01-27 614 * interrupted so we can free the message and 7b3ad5abf027b7 drivers/staging/media/platform/bcm2835/mmal-vchiq.c Eric Anholt 2017-01-27 615 * its context. This probably also solves the 7b3ad5abf027b7 drivers/staging/media/platform/bcm2835/mmal-vchiq.c Eric Anholt 2017-01-27 616 * message arriving after interruption todo 7b3ad5abf027b7 drivers/staging/media/platform/bcm2835/mmal-vchiq.c Eric Anholt 2017-01-27 617 * below 7b3ad5abf027b7 drivers/staging/media/platform/bcm2835/mmal-vchiq.c Eric Anholt 2017-01-27 618 */ 7b3ad5abf027b7 drivers/staging/media/platform/bcm2835/mmal-vchiq.c Eric Anholt 2017-01-27 619 7b3ad5abf027b7 drivers/staging/media/platform/bcm2835/mmal-vchiq.c Eric Anholt 2017-01-27 620 /* complete message so caller knows it happened */ 4e6bafdfb9f394 drivers/staging/vc04_services/bcm2835-camera/mmal-vchiq.c Michael Zoran 2017-03-08 621 complete(&msg_context->u.sync.cmplt); 7b3ad5abf027b7 drivers/staging/media/platform/bcm2835/mmal-vchiq.c Eric Anholt 2017-01-27 622 break; 7b3ad5abf027b7 drivers/staging/media/platform/bcm2835/mmal-vchiq.c Eric Anholt 2017-01-27 623 } 7b3ad5abf027b7 drivers/staging/media/platform/bcm2835/mmal-vchiq.c Eric Anholt 2017-01-27 624 7b3ad5abf027b7 drivers/staging/media/platform/bcm2835/mmal-vchiq.c Eric Anholt 2017-01-27 625 break; 7b3ad5abf027b7 drivers/staging/media/platform/bcm2835/mmal-vchiq.c Eric Anholt 2017-01-27 626 469fbb24ced37f drivers/staging/vc04_services/vchiq-mmal/mmal-vchiq.c Nicolas Saenz Julienne 2020-06-29 627 case VCHIQ_BULK_RECEIVE_DONE: 7b3ad5abf027b7 drivers/staging/media/platform/bcm2835/mmal-vchiq.c Eric Anholt 2017-01-27 628 bulk_receive_cb(instance, bulk_ctx); 7b3ad5abf027b7 drivers/staging/media/platform/bcm2835/mmal-vchiq.c Eric Anholt 2017-01-27 629 break; 7b3ad5abf027b7 drivers/staging/media/platform/bcm2835/mmal-vchiq.c Eric Anholt 2017-01-27 630 469fbb24ced37f drivers/staging/vc04_services/vchiq-mmal/mmal-vchiq.c Nicolas Saenz Julienne 2020-06-29 631 case VCHIQ_BULK_RECEIVE_ABORTED: 7b3ad5abf027b7 drivers/staging/media/platform/bcm2835/mmal-vchiq.c Eric Anholt 2017-01-27 632 bulk_abort_cb(instance, bulk_ctx); 7b3ad5abf027b7 drivers/staging/media/platform/bcm2835/mmal-vchiq.c Eric Anholt 2017-01-27 633 break; 7b3ad5abf027b7 drivers/staging/media/platform/bcm2835/mmal-vchiq.c Eric Anholt 2017-01-27 634 469fbb24ced37f drivers/staging/vc04_services/vchiq-mmal/mmal-vchiq.c Nicolas Saenz Julienne 2020-06-29 635 case VCHIQ_SERVICE_CLOSED: 7b3ad5abf027b7 drivers/staging/media/platform/bcm2835/mmal-vchiq.c Eric Anholt 2017-01-27 636 /* TODO: consider if this requires action if received when 7b3ad5abf027b7 drivers/staging/media/platform/bcm2835/mmal-vchiq.c Eric Anholt 2017-01-27 637 * driver is not explicitly closing the service 7b3ad5abf027b7 drivers/staging/media/platform/bcm2835/mmal-vchiq.c Eric Anholt 2017-01-27 638 */ 7b3ad5abf027b7 drivers/staging/media/platform/bcm2835/mmal-vchiq.c Eric Anholt 2017-01-27 639 break; 7b3ad5abf027b7 drivers/staging/media/platform/bcm2835/mmal-vchiq.c Eric Anholt 2017-01-27 640 7b3ad5abf027b7 drivers/staging/media/platform/bcm2835/mmal-vchiq.c Eric Anholt 2017-01-27 641 default: 7b3ad5abf027b7 drivers/staging/media/platform/bcm2835/mmal-vchiq.c Eric Anholt 2017-01-27 642 pr_err("Received unhandled message reason %d\n", reason); 7b3ad5abf027b7 drivers/staging/media/platform/bcm2835/mmal-vchiq.c Eric Anholt 2017-01-27 643 break; 7b3ad5abf027b7 drivers/staging/media/platform/bcm2835/mmal-vchiq.c Eric Anholt 2017-01-27 644 } 3c5da06f996995 drivers/staging/vc04_services/vchiq-mmal/mmal-vchiq.c Nicolas Saenz Julienne 2020-06-29 645 3c5da06f996995 drivers/staging/vc04_services/vchiq-mmal/mmal-vchiq.c Nicolas Saenz Julienne 2020-06-29 646 return VCHIQ_SUCCESS; 7b3ad5abf027b7 drivers/staging/media/platform/bcm2835/mmal-vchiq.c Eric Anholt 2017-01-27 647 } 7b3ad5abf027b7 drivers/staging/media/platform/bcm2835/mmal-vchiq.c Eric Anholt 2017-01-27 648 -- 0-DAY CI Kernel Test Service https://01.org/lkp