Patchwork [10/9] skd: Use pci_enable_msix_exact() instead of pci_enable_msix_range()

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Submitter Alexander Gordeev
Date Feb. 25, 2014, 9:31 p.m.
Message ID <20140225213109.GA20652@dhcp-26-207.brq.redhat.com>
Download mbox | patch
Permalink /patch/324104/
State Not Applicable
Headers show

Comments

Alexander Gordeev - Feb. 25, 2014, 9:31 p.m.
Function pci_enable_msix_exact() is a variation of
pci_enable_msix_range() that allows a device driver
to request a particular number of MSI-X interrupts,
rather than any number within a specified range.

Signed-off-by: Alexander Gordeev <agordeev@redhat.com>
Cc: Jens Axboe <axboe@kernel.dk>
Cc: Bartlomiej Zolnierkiewicz <b.zolnierkie@samsung.com>
Cc: Kyungmin Park <kyungmin.park@samsung.com>
Cc: linux-pci@vger.kernel.org
---
 drivers/block/skd_main.c |    7 +++----
 1 files changed, 3 insertions(+), 4 deletions(-)

Patch

diff --git a/drivers/block/skd_main.c b/drivers/block/skd_main.c
index a69dd93..c244c5bc 100644
--- a/drivers/block/skd_main.c
+++ b/drivers/block/skd_main.c
@@ -3945,15 +3945,14 @@  static int skd_acquire_msix(struct skd_device *skdev)
 	for (i = 0; i < SKD_MAX_MSIX_COUNT; i++)
 		entries[i].entry = i;
 
-	rc = pci_enable_msix_range(pdev, entries,
-				   SKD_MIN_MSIX_COUNT, SKD_MAX_MSIX_COUNT);
-	if (rc < 0) {
+	rc = pci_enable_msix_exact(pdev, entries, SKD_MAX_MSIX_COUNT);
+	if (rc) {
 		pr_err("(%s): failed to enable MSI-X %d\n",
 		       skd_name(skdev), rc);
 		goto msix_out;
 	}
 
-	skdev->msix_count = rc;
+	skdev->msix_count = SKD_MAX_MSIX_COUNT;
 	skdev->msix_entries = kzalloc(sizeof(struct skd_msix_entry) *
 				      skdev->msix_count, GFP_KERNEL);
 	if (!skdev->msix_entries) {