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Date: Wed, 2 Oct 2013 12:49:09 +0200 From: Alexander Gordeev <agordeev@...hat.com> To: linux-kernel@...r.kernel.org Cc: Alexander Gordeev <agordeev@...hat.com>, Bjorn Helgaas <bhelgaas@...gle.com>, Ralf Baechle <ralf@...ux-mips.org>, Michael Ellerman <michael@...erman.id.au>, Benjamin Herrenschmidt <benh@...nel.crashing.org>, Martin Schwidefsky <schwidefsky@...ibm.com>, Ingo Molnar <mingo@...hat.com>, Tejun Heo <tj@...nel.org>, Dan Williams <dan.j.williams@...el.com>, Andy King <acking@...are.com>, Jon Mason <jon.mason@...el.com>, Matt Porter <mporter@...nel.crashing.org>, stable@...r.kernel.org, linux-pci@...r.kernel.org, linux-mips@...ux-mips.org, linuxppc-dev@...ts.ozlabs.org, linux390@...ibm.com, linux-s390@...r.kernel.org, x86@...nel.org, linux-ide@...r.kernel.org, iss_storagedev@...com, linux-nvme@...ts.infradead.org, linux-rdma@...r.kernel.org, netdev@...r.kernel.org, e1000-devel@...ts.sourceforge.net, linux-driver@...gic.com, Solarflare linux maintainers <linux-net-drivers@...arflare.com>, "VMware, Inc." <pv-drivers@...are.com>, linux-scsi@...r.kernel.org Subject: [PATCH RFC 53/77] ntb: Fix missed call to pci_enable_msix() Current MSI-X enablement code assumes MSI-Xs were successfully allocated in case less than requested vectors were available. That assumption is wrong, since MSI-Xs should be enabled with a repeated call to pci_enable_msix(). This update fixes this. Signed-off-by: Alexander Gordeev <agordeev@...hat.com> --- drivers/ntb/ntb_hw.c | 4 ++++ 1 files changed, 4 insertions(+), 0 deletions(-) diff --git a/drivers/ntb/ntb_hw.c b/drivers/ntb/ntb_hw.c index 1cb6e51..de2062c 100644 --- a/drivers/ntb/ntb_hw.c +++ b/drivers/ntb/ntb_hw.c @@ -1075,6 +1075,10 @@ static int ntb_setup_msix(struct ntb_device *ndev) "Only %d MSI-X vectors. Limiting the number of queues to that number.\n", rc); msix_entries = rc; + + rc = pci_enable_msix(pdev, ndev->msix_entries, msix_entries); + if (rc) + goto err1; } for (i = 0; i < msix_entries; i++) { -- 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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