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Message-Id: <1328780061-25000-3-git-send-email-jeffrey.t.kirsher@intel.com> Date: Thu, 9 Feb 2012 01:34:15 -0800 From: Jeff Kirsher <jeffrey.t.kirsher@...el.com> To: davem@...emloft.net Cc: Greg Rose <gregory.v.rose@...el.com>, netdev@...r.kernel.org, gospo@...hat.com, sassmann@...hat.com, stable@...r.kernel.org, Jeff Kirsher <jeffrey.t.kirsher@...el.com> Subject: [net 2/8] igb: fix vf lookup From: Greg Rose <gregory.v.rose@...el.com> Recent addition of code to find already allocated VFs failed to take account that systems with 2 or more multi-port SR-IOV capable controllers might have already enabled VFs. Make sure that the VFs the function is finding are actually subordinate to the particular instance of the adapter that is looking for them and not subordinate to some device that has previously enabled SR-IOV. This is applicable to 3.2+ kernels. CC: stable@...r.kernel.org Reported-by: David Ahern <daahern@...co.com> Signed-off-by: Greg Rose <gregory.v.rose@...el.com> Tested-by: Robert E Garrett <robertX.e.garrett@...el.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@...el.com> --- drivers/net/ethernet/intel/igb/igb_main.c | 3 ++- 1 files changed, 2 insertions(+), 1 deletions(-) diff --git a/drivers/net/ethernet/intel/igb/igb_main.c b/drivers/net/ethernet/intel/igb/igb_main.c index e91d73c..94be6c3 100644 --- a/drivers/net/ethernet/intel/igb/igb_main.c +++ b/drivers/net/ethernet/intel/igb/igb_main.c @@ -5012,7 +5012,8 @@ static int igb_find_enabled_vfs(struct igb_adapter *adapter) vf_devfn = pdev->devfn + 0x80; pvfdev = pci_get_device(hw->vendor_id, device_id, NULL); while (pvfdev) { - if (pvfdev->devfn == vf_devfn) + if (pvfdev->devfn == vf_devfn && + (pvfdev->bus->number >= pdev->bus->number)) vfs_found++; vf_devfn += vf_stride; pvfdev = pci_get_device(hw->vendor_id, -- 1.7.7.6 -- To unsubscribe from this list: send the line "unsubscribe netdev" in the body of a message to majordomo@...r.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html
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