Extern or forward variable declaration at include/linux/msi.h, line 198 References: arch/mips/pci/pci-rt3883.c, line 198 arch/powerpc/platforms/cell/axon_msi.c, line 320 arch/powerpc/sysdev/fsl_msi.c, line 104 arch/powerpc/sysdev/mpic_msi.c, line 35 arch/powerpc/sysdev/xive/common.c, line 1188 arch/x86/kernel/devicetree.c, line 219 drivers/base/platform-msi.c, line 335 drivers/iommu/amd_iommu.c, line 4410 drivers/iommu/intel_irq_remapping.c, line 79 drivers/iommu/intel_irq_remapping.c, line 1410 drivers/irqchip/irq-alpine-msi.c, line 185 drivers/irqchip/irq-armada-370-xp.c, line 266 drivers/irqchip/irq-armada-370-xp.c, line 464 drivers/irqchip/irq-gic-v2m.c, line 218 drivers/irqchip/irq-gic-v3-its.c, line 1552 drivers/irqchip/irq-ls-scfg-msi.c, line 119 drivers/irqchip/irq-mbigen.c, line 231 drivers/irqchip/irq-mvebu-gicp.c, line 165 drivers/irqchip/irq-mvebu-icu.c, line 188 drivers/irqchip/irq-mvebu-odmi.c, line 143 drivers/pci/dwc/pci-dra7xx.c, line 224 drivers/pci/dwc/pci-keystone-dw.c, line 232 drivers/pci/dwc/pci-keystone-dw.c, line 336 drivers/pci/dwc/pcie-designware-host.c, line 272 drivers/pci/host/pci-aardvark.c, line 605 drivers/pci/host/pci-aardvark.c, line 646 drivers/pci/host/pci-ftpci100.c, line 336 drivers/pci/host/pci-tegra.c, line 1490 drivers/pci/host/pci-xgene-msi.c, line 247 drivers/pci/host/pcie-altera-msi.c, line 181 drivers/pci/host/pcie-altera.c, line 465 drivers/pci/host/pcie-iproc-msi.c, line 293 drivers/pci/host/pcie-rcar.c, line 846 drivers/pci/host/pcie-rockchip.c, line 1105 drivers/pci/host/pcie-xilinx-nwl.c, line 437 drivers/pci/host/pcie-xilinx-nwl.c, line 519 drivers/pci/host/pcie-xilinx.c, line 332 drivers/pci/host/pcie-xilinx.c, line 370 include/linux/msi.h, line 198 include/linux/msi.h, line 314 kernel/irq/msi.c, line 166