diff options
| author | Guilherme G. Piccoli <gpiccoli@linux.vnet.ibm.com> | 2015-10-21 12:17:35 -0200 |
|---|---|---|
| committer | Bjorn Helgaas <bhelgaas@google.com> | 2015-11-24 17:45:18 -0600 |
| commit | e80e7edc55ba711f3fe23975061b3f1c336ceb95 (patch) | |
| tree | 3719ac21b2b463301894b30dfcbb0719c4e489f6 /arch | |
| parent | 1ec218373b8ebda821aec00bb156a9c94fad9cd4 (diff) | |
| download | linux-e80e7edc55ba711f3fe23975061b3f1c336ceb95.tar.gz linux-e80e7edc55ba711f3fe23975061b3f1c336ceb95.tar.bz2 linux-e80e7edc55ba711f3fe23975061b3f1c336ceb95.zip | |
PCI/MSI: Initialize MSI capability for all architectures
1851617cd2da ("PCI/MSI: Disable MSI at enumeration even if kernel doesn't
support MSI") moved dev->msi_cap and dev->msix_cap initialization from the
pci_init_capabilities() path (used on all architectures) to the
pci_setup_device() path (not used on Open Firmware architectures).
This broke MSI or MSI-X on Open Firmware machines. 4d9aac397a5d
("powerpc/PCI: Disable MSI/MSI-X interrupts at PCI probe time in OF case")
fixed it for PowerPC but not for SPARC.
Set up MSI and MSI-X (initialize msi_cap and msix_cap and disable MSI and
MSI-X) in pci_init_capabilities() so all architectures do it the same way.
This reverts 4d9aac397a5d since this patch fixes the problem generically
for both PowerPC and SPARC.
[bhelgaas: changelog, make pci_msi_setup_pci_dev() static]
Fixes: 1851617cd2da ("PCI/MSI: Disable MSI at enumeration even if kernel doesn't support MSI")
Signed-off-by: Guilherme G. Piccoli <gpiccoli@linux.vnet.ibm.com>
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
Diffstat (limited to 'arch')
| -rw-r--r-- | arch/powerpc/kernel/pci_of_scan.c | 3 |
1 files changed, 0 insertions, 3 deletions
diff --git a/arch/powerpc/kernel/pci_of_scan.c b/arch/powerpc/kernel/pci_of_scan.c index 2e710c15893f..526ac6750e4d 100644 --- a/arch/powerpc/kernel/pci_of_scan.c +++ b/arch/powerpc/kernel/pci_of_scan.c @@ -187,9 +187,6 @@ struct pci_dev *of_create_pci_dev(struct device_node *node, pci_device_add(dev, bus); - /* Setup MSI caps & disable MSI/MSI-X interrupts */ - pci_msi_setup_pci_dev(dev); - return dev; } EXPORT_SYMBOL(of_create_pci_dev); |