From 165ae50e450bc7de6c741bf2c27ed0920a40a9af Mon Sep 17 00:00:00 2001
From: Varun Prakash <varun@chelsio.com>
Date: Fri, 9 Dec 2016 14:40:07 +0530
Subject: [PATCH] scsi: libcxgbi: return error if interface is not up
Do not post hw active open cmd if IFF_UP is not set or link is down on
the interface, return -ENETDOWN in this case.
Signed-off-by: Varun Prakash <varun@chelsio.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
---
drivers/scsi/cxgbi/libcxgbi.c | 12 ++++++++++++
1 file changed, 12 insertions(+)
diff --git a/drivers/scsi/cxgbi/libcxgbi.c b/drivers/scsi/cxgbi/libcxgbi.c
index 9f4fde9b12e36..9167bcd9fffe9 100644
--- a/drivers/scsi/cxgbi/libcxgbi.c
+++ b/drivers/scsi/cxgbi/libcxgbi.c
@@ -642,6 +642,12 @@ static struct cxgbi_sock *cxgbi_check_route(struct sockaddr *dst_addr)
n->dev->name, ndev->name, mtu);
}
+ if (!(ndev->flags & IFF_UP) || !netif_carrier_ok(ndev)) {
+ pr_info("%s interface not up.\n", ndev->name);
+ err = -ENETDOWN;
+ goto rel_neigh;
+ }
+
cdev = cxgbi_device_find_by_netdev(ndev, &port);
if (!cdev) {
pr_info("dst %pI4, %s, NOT cxgbi device.\n",
@@ -736,6 +742,12 @@ static struct cxgbi_sock *cxgbi_check_route6(struct sockaddr *dst_addr)
}
ndev = n->dev;
+ if (!(ndev->flags & IFF_UP) || !netif_carrier_ok(ndev)) {
+ pr_info("%s interface not up.\n", ndev->name);
+ err = -ENETDOWN;
+ goto rel_rt;
+ }
+
if (ipv6_addr_is_multicast(&daddr6->sin6_addr)) {
pr_info("multi-cast route %pI6 port %u, dev %s.\n",
daddr6->sin6_addr.s6_addr,
--
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