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PCI/MSI: Document the various ways of ending up with NO_MSI
authorMarc Zyngier <maz@kernel.org>
Tue, 30 Mar 2021 15:11:44 +0000 (16:11 +0100)
committerLorenzo Pieralisi <lorenzo.pieralisi@arm.com>
Tue, 20 Apr 2021 13:11:22 +0000 (14:11 +0100)
commit61af69296cbadf4c88a1076a3b3e5572827b04c8
treea4f0b8be3141207d979035c2c8b2dd9f59a43e5c
parent645e9c38383d7fcde2784ee537fa18ec9bed54d9
PCI/MSI: Document the various ways of ending up with NO_MSI

We have now three ways of ending up with NO_MSI being set.
Document them.

Link: https://lore.kernel.org/r/20210330151145.997953-14-maz@kernel.org
Signed-off-by: Marc Zyngier <maz@kernel.org>
Signed-off-by: Lorenzo Pieralisi <lorenzo.pieralisi@arm.com>
Acked-by: Bjorn Helgaas <bhelgaas@google.com>
drivers/pci/msi.c