From: Scott Feldman <scofeldm@cisco.com>
Date: Thu, 3 Sep 2009 17:02:40 +0000 (+0000)
Subject: enic: bug fix: check for zero port MTU before posting warning
X-Git-Url: https://git.stricted.de/?a=commitdiff_plain;h=491598a44f12fe8b862ab4123de1a1ffe9b86832;p=GitHub%2FLineageOS%2FG12%2Fandroid_kernel_amlogic_linux-4.9.git

enic: bug fix: check for zero port MTU before posting warning

Nic firmware can return zero for port MTU, so check for non-zero value
before checking for change in port MTU.

Signed-off-by: Scott Feldman <scofeldm@cisco.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
---

diff --git a/drivers/net/enic/enic_main.c b/drivers/net/enic/enic_main.c
index e0bf224d7f9b..f800218c6595 100644
--- a/drivers/net/enic/enic_main.c
+++ b/drivers/net/enic/enic_main.c
@@ -362,7 +362,7 @@ static void enic_mtu_check(struct enic *enic)
 {
 	u32 mtu = vnic_dev_mtu(enic->vdev);
 
-	if (mtu != enic->port_mtu) {
+	if (mtu && mtu != enic->port_mtu) {
 		if (mtu < enic->netdev->mtu)
 			printk(KERN_WARNING PFX
 				"%s: interface MTU (%d) set higher "