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| author | Linus Torvalds <torvalds@linux-foundation.org> | 2014-03-12 18:29:34 -0700 |
|---|---|---|
| committer | Linus Torvalds <torvalds@linux-foundation.org> | 2014-03-12 18:29:34 -0700 |
| commit | ac9dc67b730f3a1d10c5abbf91ed773d1e277646 (patch) | |
| tree | 5562c9a59adc4831dc8c0063c4ef38a19b9cb88c | |
| parent | 18f2af2d68815e1c4d5c275ebd030e27ef627582 (diff) | |
| parent | ac93ac7403493f8707b7734de9f40d5cb5db9045 (diff) | |
Merge tag 'pci-v3.14-fixes-2' of git://git.kernel.org/pub/scm/linux/kernel/git/helgaas/pci
Pull PCI fixes from Bjorn Helgaas:
"These are two important regression fixes for bugs we've introduced so
far in v3.14.
One of the resource allocation changes from the merge window is broken
for 32-bit kernels where we don't use _CRS for PCI host bridges
(mostly pre-2008 machines), so there's a fix for that.
The INTx enable change we put in after the merge window turned out to
break pciehp because we re-enable INTx on the hotplug bridge, which
apparently breaks MSI for future hotplug events"
* tag 'pci-v3.14-fixes-2' of git://git.kernel.org/pub/scm/linux/kernel/git/helgaas/pci:
PCI: Don't check resource_size() in pci_bus_alloc_resource()
PCI: Enable INTx in pci_reenable_device() only when MSI/MSI-X not enabled
| -rw-r--r-- | drivers/pci/bus.c | 2 | ||||
| -rw-r--r-- | drivers/pci/pci.c | 3 |
2 files changed, 3 insertions, 2 deletions
diff --git a/drivers/pci/bus.c b/drivers/pci/bus.c index 00660cc502c5..38901665c770 100644 --- a/drivers/pci/bus.c +++ b/drivers/pci/bus.c @@ -162,8 +162,6 @@ static int pci_bus_alloc_from_region(struct pci_bus *bus, struct resource *res, avail = *r; pci_clip_resource_to_region(bus, &avail, region); - if (!resource_size(&avail)) - continue; /* * "min" is typically PCIBIOS_MIN_IO or PCIBIOS_MIN_MEM to diff --git a/drivers/pci/pci.c b/drivers/pci/pci.c index 6b05f6134b68..fdbc294821e6 100644 --- a/drivers/pci/pci.c +++ b/drivers/pci/pci.c @@ -1192,6 +1192,9 @@ static int do_pci_enable_device(struct pci_dev *dev, int bars) return err; pci_fixup_device(pci_fixup_enable, dev); + if (dev->msi_enabled || dev->msix_enabled) + return 0; + pci_read_config_byte(dev, PCI_INTERRUPT_PIN, &pin); if (pin) { pci_read_config_word(dev, PCI_COMMAND, &cmd); |