Alice, > When ufshcd_err_handler() is executed, CQ event interrupt can enter > waiting for the same lock. It could happened in upstream code path > ufshcd_handle_mcq_cq_events() and also in ufs_mtk_mcq_intr(). This > warning message will be generated when &hwq->cq_lock is used in IRQ > context with IRQ enabled. Use ufshcd_mcq_poll_cqe_lock() with > spin_lock_irqsave instead of spin_lock to resolve the deadlock issue. Applied to 6.4/scsi-staging, thanks! -- Martin K. Petersen Oracle Linux Engineering
