Warning intel-iommu.c:2246 __domain_mapping+0x3ab/0x3c0 when using qla2xxx driver

Issue

• Kernel warning at drivers/iommu/intel-iommu.c:2246 __domain_mapping+0x3ab/0x3c0 due to issue with Qlogic driver causing unexpected reboot when intel_iommu is enabled.

  WARNING: CPU: 36 PID: 62405 at drivers/iommu/intel-iommu.c:2246 __domain_mapping+0x3ab/0x3c0
  Call Trace:
  [<ffffffff81b61dc1>] dump_stack+0x19/0x1b
  [<ffffffff81497648>] __warn+0xd8/0x100
  [<ffffffff8149778d>] warn_slowpath_null+0x1d/0x20
  [<ffffffff819ed7cb>] __domain_mapping+0x3ab/0x3c0
  [<ffffffff819efd35>] intel_map_sg+0x115/0x240
  [<ffffffffc06e9964>] qla24xx_start_scsi+0x564/0x6b0 [qla2xxx]
  [<ffffffffc06ea48d>] qla24xx_dif_start_scsi+0x9dd/0xd80 [qla2xxx]
  [<ffffffff818d7be9>] ? scsi_init_sgtable+0x49/0x70
  [<ffffffff815b92e5>] ? mempool_alloc_slab+0x15/0x20
  [<ffffffffc06bf18a>] qla2xxx_queuecommand+0x3fa/0x4a0 [qla2xxx]
  [<ffffffff818d0960>] scsi_dispatch_cmd+0xb0/0x240
  [<ffffffff818d9efc>] scsi_request_fn+0x4cc/0x680
  [<ffffffff81742ff9>] __blk_run_queue+0x39/0x50
  [<ffffffff8173e403>] __elv_add_request+0xd3/0x260
  [<ffffffff81746080>] blk_insert_cloned_request+0xe0/0x1a0
  [<ffffffffc03f1c6d>] map_request+0x15d/0x2a0 [dm_mod]
  [<ffffffffc03f1dc6>] map_tio_request+0x16/0x40 [dm_mod]
  [<ffffffff814c1ff5>] kthread_worker_fn+0x85/0x180
  [<ffffffff814c1f70>] ? kthread_stop+0xf0/0xf0
  [<ffffffff814c1c31>] kthread+0xd1/0xe0
  [<ffffffff814c1b60>] ? insert_kthread_work+0x40/0x40
  [<ffffffff81b74c37>] ret_from_fork_nospec_begin+0x21/0x21
  [<ffffffff814c1b60>] ? insert_kthread_work+0x40/0x40