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PCI updates for v3.16:

Browse source 
Virtualization
     - Fix "wait for pending transactions" for PCI AF reset (Alex Williamson)
 
   Miscellaneous
     - Update mx6 PCI driver maintainer email (Fabio Estevam)
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Merge tag 'pci-v3.16-fixes-1' of git://git.kernel.org/pub/scm/linux/kernel/git/helgaas/pci

Pull PCI fixes from Bjorn Helgaas:
 "Just a fix for the device reset path and an email address update.

  Virtualization
    - Fix "wait for pending transactions" for PCI AF reset (Alex
      Williamson)

  Miscellaneous
    - Update mx6 PCI driver maintainer email (Fabio Estevam)"

* tag 'pci-v3.16-fixes-1' of git://git.kernel.org/pub/scm/linux/kernel/git/helgaas/pci:
  MAINTAINERS: Update mx6 PCI driver maintainer's email
  PCI: Fix unaligned access in AF transaction pending test
This commit is contained in:
Linus Torvalds 2014-07-09 16:18:18 -07:00
commit 4f440cd534
2 changed files with 8 additions and 3 deletions
Download patch file Download diff file Expand all files Collapse all files

2
MAINTAINERS
View file

@ -6787,7 +6787,7 @@ F: arch/x86/kernel/quirks.c
PCI DRIVER FOR IMX6
M: Richard Zhu <r65037@freescale.com>
M: Shawn Guo <shawn.guo@linaro.org>
M: Shawn Guo <shawn.guo@freescale.com>
L: linux-pci@vger.kernel.org
L: linux-arm-kernel@lists.infradead.org (moderated for non-subscribers)
S: Maintained

9
drivers/pci/pci.c
View file

@ -3135,8 +3135,13 @@ static int pci_af_flr(struct pci_dev *dev, int probe)
if (probe)
return 0;
/* Wait for Transaction Pending bit clean */
if (pci_wait_for_pending(dev, pos + PCI_AF_STATUS, PCI_AF_STATUS_TP))
/*
* Wait for Transaction Pending bit to clear. A word-aligned test
* is used, so we use the conrol offset rather than status and shift
* the test bit to match.
*/
if (pci_wait_for_pending(dev, pos + PCI_AF_CTRL,
PCI_AF_STATUS_TP << 8))
goto clear;
dev_err(&dev->dev, "transaction is not cleared; proceeding with reset anyway\n");