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 /include/linux/pci.h | |
| parent | 1ec218373b8ebda821aec00bb156a9c94fad9cd4 (diff) | |
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 'include/linux/pci.h')
| -rw-r--r-- | include/linux/pci.h | 2 |
1 files changed, 0 insertions, 2 deletions
diff --git a/include/linux/pci.h b/include/linux/pci.h index e828e7b4afec..f9f79add0afb 100644 --- a/include/linux/pci.h +++ b/include/linux/pci.h @@ -1248,8 +1248,6 @@ struct msix_entry { u16 entry; /* driver uses to specify entry, OS writes */ }; -void pci_msi_setup_pci_dev(struct pci_dev *dev); - #ifdef CONFIG_PCI_MSI int pci_msi_vec_count(struct pci_dev *dev); void pci_msi_shutdown(struct pci_dev *dev); |