Hi Jason-JH.Lin, kernel test robot noticed the following build warnings: [auto build test WARNING on linus/master] [also build test WARNING on next-20240523] [cannot apply to robh/for-next krzk-dt/for-next fujitsu-integration/mailbox-for-next v6.9] [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/Jason-JH-Lin/dt-bindings-gce-mt8195-Add-CMDQ_SYNC_TOKEN_SECURE_THR_EOF-event-id/20240526-071102 base: linus/master patch link: https://lore.kernel.org/r/20240525230810.24623-7-jason-jh.lin%40mediatek.com patch subject: [PATCH v6 6/8] mailbox: mediatek: Add CMDQ secure mailbox driver config: m68k-allyesconfig (https://download.01.org/0day-ci/archive/20240526/202405260953.uzQ4Rwg2-lkp@xxxxxxxxx/config) compiler: m68k-linux-gcc (GCC) 13.2.0 reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20240526/202405260953.uzQ4Rwg2-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 <lkp@xxxxxxxxx> | Closes: https://lore.kernel.org/oe-kbuild-all/202405260953.uzQ4Rwg2-lkp@xxxxxxxxx/ All warnings (new ones prefixed by >>): drivers/mailbox/mtk-cmdq-sec-mailbox.c: In function 'cmdq_sec_task_exec_work': >> drivers/mailbox/mtk-cmdq-sec-mailbox.c:619:31: warning: variable 'data' set but not used [-Wunused-but-set-variable] 619 | struct cmdq_sec_data *data; | ^~~~ vim +/data +619 drivers/mailbox/mtk-cmdq-sec-mailbox.c 611 612 static void cmdq_sec_task_exec_work(struct work_struct *work_item) 613 { 614 struct cmdq_sec_task *sec_task = container_of(work_item, 615 struct cmdq_sec_task, exec_work); 616 struct cmdq_sec_thread *sec_thread = container_of(sec_task->task.thread, 617 struct cmdq_sec_thread, thread); 618 struct cmdq_sec *cmdq = container_of(sec_thread->dev, struct cmdq_sec, dev); > 619 struct cmdq_sec_data *data; 620 unsigned long flags; 621 int err; 622 623 dev_dbg(&cmdq->dev, "%s gce:%#lx sec_task:%p pkt:%p thread:%u", 624 __func__, (unsigned long)cmdq->base_pa, 625 sec_task, sec_task->task.pkt, sec_thread->idx); 626 627 if (!sec_task->task.pkt->sec_data) { 628 dev_err(&cmdq->dev, "pkt:%p without sec_data", sec_task->task.pkt); 629 return; 630 } 631 data = (struct cmdq_sec_data *)sec_task->task.pkt->sec_data; 632 633 mutex_lock(&cmdq->exec_lock); 634 635 spin_lock_irqsave(&sec_thread->thread.chan->lock, flags); 636 if (!sec_thread->task_cnt) { 637 mod_timer(&sec_thread->timeout, jiffies + 638 msecs_to_jiffies(sec_thread->timeout_ms)); 639 sec_thread->wait_cookie = 1; 640 sec_thread->next_cookie = 1; 641 sec_thread->task_cnt = 0; 642 __raw_writel(0, (void __iomem *)cmdq->shared_mem->va + 643 CMDQ_SEC_SHARED_THR_CNT_OFFSET + sec_thread->idx * sizeof(u32)); 644 } 645 646 sec_task->reset_exec = sec_thread->task_cnt ? false : true; 647 sec_task->wait_cookie = sec_thread->next_cookie; 648 sec_thread->next_cookie = (sec_thread->next_cookie + 1) % CMDQ_MAX_COOKIE_VALUE; 649 list_add_tail(&sec_task->task.list_entry, &sec_thread->thread.task_busy_list); 650 sec_thread->task_cnt += 1; 651 spin_unlock_irqrestore(&sec_thread->thread.chan->lock, flags); 652 sec_task->trigger = sched_clock(); 653 654 if (!atomic_cmpxchg(&cmdq_path_res, 0, 1)) { 655 err = cmdq_sec_task_submit(cmdq, NULL, CMD_CMDQ_IWC_PATH_RES_ALLOCATE, 656 CMDQ_INVALID_THREAD); 657 if (err) { 658 atomic_set(&cmdq_path_res, 0); 659 goto task_end; 660 } 661 } 662 663 if (sec_thread->task_cnt > CMDQ_MAX_TASK_IN_SECURE_THREAD) { 664 dev_err(&cmdq->dev, "task_cnt:%u cannot more than %u sec_task:%p thread:%u", 665 sec_thread->task_cnt, CMDQ_MAX_TASK_IN_SECURE_THREAD, 666 sec_task, sec_thread->idx); 667 err = -EMSGSIZE; 668 goto task_end; 669 } 670 671 err = cmdq_sec_task_submit(cmdq, sec_task, CMD_CMDQ_IWC_SUBMIT_TASK, 672 sec_thread->idx); 673 if (err) 674 dev_err(&cmdq->dev, "cmdq_sec_task_submit err:%d sec_task:%p thread:%u", 675 err, sec_task, sec_thread->idx); 676 677 task_end: 678 if (err) { 679 struct cmdq_cb_data cb_data; 680 681 cb_data.sta = err; 682 cb_data.pkt = sec_task->task.pkt; 683 mbox_chan_received_data(sec_thread->thread.chan, &cb_data); 684 685 spin_lock_irqsave(&sec_thread->thread.chan->lock, flags); 686 if (!sec_thread->task_cnt) 687 dev_err(&cmdq->dev, "thread:%u task_cnt:%u cannot below zero", 688 sec_thread->idx, sec_thread->task_cnt); 689 else 690 sec_thread->task_cnt -= 1; 691 692 sec_thread->next_cookie = (sec_thread->next_cookie - 1 + 693 CMDQ_MAX_COOKIE_VALUE) % CMDQ_MAX_COOKIE_VALUE; 694 list_del(&sec_task->task.list_entry); 695 dev_dbg(&cmdq->dev, "gce:%#lx err:%d sec_task:%p pkt:%p", 696 (unsigned long)cmdq->base_pa, err, sec_task, sec_task->task.pkt); 697 dev_dbg(&cmdq->dev, "thread:%u task_cnt:%u wait_cookie:%u next_cookie:%u", 698 sec_thread->idx, sec_thread->task_cnt, 699 sec_thread->wait_cookie, sec_thread->next_cookie); 700 spin_unlock_irqrestore(&sec_thread->thread.chan->lock, flags); 701 702 kfree(sec_task); 703 } 704 705 mutex_unlock(&cmdq->exec_lock); 706 } 707 -- 0-DAY CI Kernel Test Service https://github.com/intel/lkp-tests/wiki
