From ee6fdfadaafeb50a2e7d2a5a4f978332b5198000 Mon Sep 17 00:00:00 2001
From: Roger Quadros <rogerq@ti.com>
Date: Mon, 13 Mar 2017 15:04:33 +0200
Subject: [PATCH] net: don't override ethernet address environment
If the ethernet address environment is set with a valid
ethernet address prevent overriding it as it is most likely
set by the user and he/she doesn't want board code to
automatically override it whatsoever.
Signed-off-by: Roger Quadros <rogerq@ti.com>
Reviewed-by: Tom Rini <trini@konsulko.com>
---
net/eth_common.c | 3 +++
1 file changed, 3 insertions(+)
diff --git a/net/eth_common.c b/net/eth_common.c
index e9d3c66741..58fa295771 100644
--- a/net/eth_common.c
+++ b/net/eth_common.c
@@ -34,6 +34,9 @@ int eth_setenv_enetaddr(const char *name, const uchar *enetaddr)
{
char buf[ARP_HLEN_ASCII + 1];
+ if (eth_getenv_enetaddr(name, (uchar *)buf))
+ return -EEXIST;
+
sprintf(buf, "%pM", enetaddr);
return setenv(name, buf);
--
2.39.5