PCI/MSI: Add pci_enable_msi_exact() and pci_enable_msix_exact()
authorAlexander Gordeev <agordeev@redhat.com>
Thu, 13 Feb 2014 17:48:02 +0000 (10:48 -0700)
committerBjorn Helgaas <bhelgaas@google.com>
Thu, 13 Feb 2014 17:48:02 +0000 (10:48 -0700)
commit3ce4e860e578f843db36a1f7357ba00aeaa7610f
tree5ab6d5d5db55c65646e4cce6ce0c17e1d87fc203
parent13f9653dab9a5d350a560c435a0f3d90ff7905ef
PCI/MSI: Add pci_enable_msi_exact() and pci_enable_msix_exact()

The new functions are special cases for pci_enable_msi_range() and
pci_enable_msix_range() when a particular number of MSI or MSI-X
is needed.

By contrast with pci_enable_msi_range() and pci_enable_msix_range()
functions, pci_enable_msi_exact() and pci_enable_msix_exact()
return zero in case of success, which indicates MSI or MSI-X
interrupts have been successfully allocated.

Signed-off-by: Alexander Gordeev <agordeev@redhat.com>
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
Documentation/PCI/MSI-HOWTO.txt
include/linux/pci.h