linux-kernel - [PATCH v2 4/4] ntb: Use pci_enable_msix_range() instead of pci_enable

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [<thread-prev] [thread-next>] [day] [month] [year] [list]

Message-ID: <20140311160034.GB25638@dhcp-26-207.brq.redhat.com>
Date:	Tue, 11 Mar 2014 17:00:35 +0100
From:	Alexander Gordeev <agordeev@...hat.com>
To:	linux-kernel@...r.kernel.org
Cc:	Jon Mason <jon.mason@...el.com>, linux-pci@...r.kernel.org
Subject: [PATCH v2 4/4] ntb: Use pci_enable_msix_range() instead of
 pci_enable_msix()

As result of deprecation of MSI-X/MSI enablement functions
pci_enable_msix() and pci_enable_msi_block() all drivers
using these two interfaces need to be updated to use the
new pci_enable_msi_range()  or pci_enable_msi_exact()
and pci_enable_msix_range() or pci_enable_msix_exact()
interfaces.

Signed-off-by: Alexander Gordeev <agordeev@...hat.com>
Cc: Jon Mason <jon.mason@...el.com>
Cc: linux-pci@...r.kernel.org
---
 drivers/ntb/ntb_hw.c |   20 +++++---------------
 1 files changed, 5 insertions(+), 15 deletions(-)

diff --git a/drivers/ntb/ntb_hw.c b/drivers/ntb/ntb_hw.c
index 1f8decd..ff5c0a3 100644
--- a/drivers/ntb/ntb_hw.c
+++ b/drivers/ntb/ntb_hw.c
@@ -1088,11 +1088,9 @@ static int ntb_setup_snb_msix(struct ntb_device *ndev, int msix_entries)
 	if (msix_entries < ndev->limits.msix_cnt)
 		return -ENOSPC;
 
-	rc = pci_enable_msix(pdev, ndev->msix_entries, msix_entries);
+	rc = pci_enable_msix_exact(pdev, ndev->msix_entries, msix_entries);
 	if (rc < 0)
 		return rc;
-	else if (rc > 0)
-		return -ENOSPC;
 
 	for (i = 0; i < msix_entries; i++) {
 		msix = &ndev->msix_entries[i];
@@ -1138,18 +1136,10 @@ static int ntb_setup_bwd_msix(struct ntb_device *ndev, int msix_entries)
 	struct msix_entry *msix;
 	int rc, i;
 
-retry:
-	rc = pci_enable_msix(pdev, ndev->msix_entries, msix_entries);
-	if (rc < 0)
-		return rc;
-	else if (rc > 0) {
-		dev_warn(&pdev->dev,
-			 "Only %d MSI-X vectors. "
-			 "Limiting the number of queues to that number.\n",
-			 rc);
-		msix_entries = rc;
-		goto retry;
-	}
+	msix_entries = pci_enable_msix_range(pdev, ndev->msix_entries,
+					     1, msix_entries);
+	if (msix_entries < 0)
+		return msix_entries;
 
 	for (i = 0; i < msix_entries; i++) {
 		msix = &ndev->msix_entries[i];
-- 
1.7.7.6

-- 
Regards,
Alexander Gordeev
agordeev@...hat.com
--
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@...r.kernel.org
More majordomo info at  http://vger.kernel.org/majordomo-info.html
Please read the FAQ at  http://www.tux.org/lkml/