netdev - [PATCH] liquidio: Use pcie_flr() instead of reimplementing it

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 for Android: free password hash cracker in your pocket

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

Date:   Thu,  8 Aug 2019 07:57:53 +0300
From:   Denis Efremov <efremov@...ux.com>
To:     Bjorn Helgaas <bjorn.helgaas@...il.com>
Cc:     Denis Efremov <efremov@...ux.com>,
        Derek Chickles <dchickles@...vell.com>,
        Satanand Burla <sburla@...vell.com>,
        Felix Manlunas <fmanlunas@...vell.com>, netdev@...r.kernel.org,
        linux-pci@...r.kernel.org, linux-kernel@...r.kernel.org
Subject: [PATCH] liquidio: Use pcie_flr() instead of reimplementing it

octeon_mbox_process_cmd() directly writes the PCI_EXP_DEVCTL_BCR_FLR
bit, which bypasses timing requirements imposed by the PCIe spec.
This patch fixes the function to use the pcie_flr() interface instead.

Signed-off-by: Denis Efremov <efremov@...ux.com>
---
 drivers/net/ethernet/cavium/liquidio/octeon_mailbox.c | 4 +---
 1 file changed, 1 insertion(+), 3 deletions(-)

diff --git a/drivers/net/ethernet/cavium/liquidio/octeon_mailbox.c b/drivers/net/ethernet/cavium/liquidio/octeon_mailbox.c
index 021d99cd1665..614d07be7181 100644
--- a/drivers/net/ethernet/cavium/liquidio/octeon_mailbox.c
+++ b/drivers/net/ethernet/cavium/liquidio/octeon_mailbox.c
@@ -260,9 +260,7 @@ static int octeon_mbox_process_cmd(struct octeon_mbox *mbox,
 		dev_info(&oct->pci_dev->dev,
 			 "got a request for FLR from VF that owns DPI ring %u\n",
 			 mbox->q_no);
-		pcie_capability_set_word(
-			oct->sriov_info.dpiring_to_vfpcidev_lut[mbox->q_no],
-			PCI_EXP_DEVCTL, PCI_EXP_DEVCTL_BCR_FLR);
+		pcie_flr(oct->sriov_info.dpiring_to_vfpcidev_lut[mbox->q_no]);
 		break;
 
 	case OCTEON_PF_CHANGED_VF_MACADDR:
-- 
2.21.0