Extern or forward variable declaration at include/trace/events/iommu.h, line 16 References: drivers/iommu/iommu.c, line 65 drivers/iommu/iommu.c, line 114 drivers/iommu/iommu.c, line 260 drivers/iommu/iommu.c, line 264 drivers/iommu/iommu.c, line 268 drivers/iommu/iommu.c, line 270 drivers/iommu/iommu.c, line 522 drivers/iommu/iommu.c, line 583 drivers/iommu/iommu.c, line 586 drivers/iommu/iommu.c, line 588 drivers/iommu/iommu.c, line 588 drivers/iommu/iommu.c, line 589 drivers/iommu/iommu.c, line 592 drivers/iommu/iommu.c, line 598 drivers/iommu/iommu.c, line 600 drivers/iommu/iommu.c, line 606 drivers/iommu/iommu.c, line 613 drivers/iommu/iommu.c, line 614 drivers/iommu/iommu.c, line 628 drivers/iommu/iommu.c, line 647 drivers/iommu/iommu.c, line 652 drivers/iommu/iommu.c, line 656 drivers/iommu/iommu.c, line 669 drivers/iommu/iommu.c, line 672 drivers/iommu/iommu.c, line 683 drivers/iommu/iommu.c, line 684 drivers/iommu/iommu.c, line 690 drivers/iommu/iommu.c, line 693 drivers/iommu/iommu.c, line 698 drivers/iommu/iommu.c, line 699 drivers/iommu/iommu.c, line 728 drivers/iommu/iommu.c, line 730 drivers/iommu/iommu.c, line 733 drivers/iommu/iommu.c, line 734 drivers/iommu/iommu.c, line 743 drivers/iommu/iommu.c, line 763 drivers/iommu/iommu.c, line 955 drivers/iommu/iommu.c, line 964 drivers/iommu/iommu.c, line 1037 drivers/iommu/iommu.c, line 1091 drivers/iommu/iommu.c, line 1115 drivers/iommu/iommu.c, line 1129 drivers/iommu/iommu.c, line 1321 drivers/iommu/iommu.c, line 1337 drivers/iommu/iommu.c, line 1366 drivers/iommu/iommu.c, line 1379 drivers/iommu/iommu.c, line 1401 drivers/iommu/iommu.c, line 1428 drivers/iommu/iommu.c, line 1463 drivers/iommu/iommu.c, line 1763 drivers/iommu/iommu.c, line 1858 drivers/iommu/iommu.c, line 1866 drivers/iommu/iommu.c, line 1893 drivers/iommu/iommu.c, line 1960 drivers/iommu/iommu.c, line 1980 drivers/iommu/iommu.c, line 1992