netdev - [PATCH net] net: amd-xgbe: disable interrupts during pci removal

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-next>] [day] [month] [year] [list]

Message-ID: <20220209043201.1365811-1-Raju.Rangoju@amd.com>
Date:   Wed, 9 Feb 2022 10:02:01 +0530
From:   Raju Rangoju <Raju.Rangoju@....com>
To:     <thomas.lendacky@....com>, <davem@...emloft.net>, <kuba@...nel.org>
CC:     <netdev@...r.kernel.org>, <Shyam-sundar.S-k@....com>,
        <Raju.Rangoju@....com>, Selwin Sebastian <Selwin.Sebastian@....com>
Subject: [PATCH net] net: amd-xgbe: disable interrupts during pci removal

Hardware interrupts are enabled during the pci probe, however,
they are not disabled during pci removal.

Disable all hardware interrupts during pci removal to avoid any
issues.

Fixes: e75377404726 ("amd-xgbe: Update PCI support to use new IRQ functions")
Suggested-by: Selwin Sebastian <Selwin.Sebastian@....com>
Signed-off-by: Raju Rangoju <Raju.Rangoju@....com>
---
 drivers/net/ethernet/amd/xgbe/xgbe-pci.c | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/drivers/net/ethernet/amd/xgbe/xgbe-pci.c b/drivers/net/ethernet/amd/xgbe/xgbe-pci.c
index efdcf484a510..2af3da4b2d05 100644
--- a/drivers/net/ethernet/amd/xgbe/xgbe-pci.c
+++ b/drivers/net/ethernet/amd/xgbe/xgbe-pci.c
@@ -425,6 +425,9 @@ static void xgbe_pci_remove(struct pci_dev *pdev)
 
 	pci_free_irq_vectors(pdata->pcidev);
 
+	/* Disable all interrupts in the hardware */
+	XP_IOWRITE(pdata, XP_INT_EN, 0x0);
+
 	xgbe_free_pdata(pdata);
 }
 
-- 
2.25.1