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Subject[PATCH 3/9] ntb: Fix missed call to pci_enable_msix()
Date
From: Alexander Gordeev <agordeev@redhat.com>

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@redhat.com>
Signed-off-by: Jon Mason <jon.mason@intel.com>
---
drivers/ntb/ntb_hw.c | 4 ++++
1 file changed, 4 insertions(+)

diff --git a/drivers/ntb/ntb_hw.c b/drivers/ntb/ntb_hw.c
index a9b065f..fa97948 100644
--- a/drivers/ntb/ntb_hw.c
+++ b/drivers/ntb/ntb_hw.c
@@ -1084,6 +1084,10 @@ 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++) {
--
1.7.9.5


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