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[v11,1/7] PCI: Ignore requested alignment for IOV BARs

Message ID 20170417213632.21092.89690.stgit@bhelgaas-glaptop.roam.corp.google.com (mailing list archive)
State Not Applicable
Headers show

Commit Message

Bjorn Helgaas April 17, 2017, 9:36 p.m. UTC 
From: Yongji Xie <xyjxie@linux.vnet.ibm.com>

We would call pci_reassigndev_resource_alignment() before
pci_init_capabilities().  So the requested alignment would never work for
IOV BARs.

Furthermore, it's meaningless to request additional alignment for IOV BARs,
the IOV BAR alignment is only determined by the VF BAR size.

Signed-off-by: Yongji Xie <xyjxie@linux.vnet.ibm.com>
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
Reviewed-by: Gavin Shan <gwshan@linux.vnet.ibm.com>
---
 drivers/pci/pci.c |    2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)
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Patch

diff --git a/drivers/pci/pci.c b/drivers/pci/pci.c
index 7904d02ffdb9..679af2a253ad 100644
--- a/drivers/pci/pci.c
+++ b/drivers/pci/pci.c
@@ -5084,7 +5084,7 @@  void pci_reassigndev_resource_alignment(struct pci_dev *dev)
 	command &= ~PCI_COMMAND_MEMORY;
 	pci_write_config_word(dev, PCI_COMMAND, command);
 
-	for (i = 0; i < PCI_BRIDGE_RESOURCES; i++) {
+	for (i = 0; i <= PCI_ROM_RESOURCE; i++) {
 		r = &dev->resource[i];
 		if (!(r->flags & IORESOURCE_MEM))
 			continue;