From 18d741c98c7fdeca3c8ed1df40bd35fbebaa8571 Mon Sep 17 00:00:00 2001
From: Alexander Graf <agraf@suse.de>
Date: Thu, 15 Mar 2018 11:02:33 +0100
Subject: [PATCH] net: Only access network devices after init

In the efi_loader main loop we call eth_rx() occasionally. This rx function
might end up calling into devices that haven't been initialized yet,
potentially resulting in a lot of transfer timeouts.

Instead, let's make sure the ethernet device is actually initialized before
reading from or writing to it.

Signed-off-by: Alexander Graf <agraf@suse.de>
---
 net/eth-uclass.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/net/eth-uclass.c b/net/eth-uclass.c
index d30b04ba86..240b596534 100644
--- a/net/eth-uclass.c
+++ b/net/eth-uclass.c
@@ -336,7 +336,7 @@ int eth_send(void *packet, int length)
 	if (!current)
 		return -ENODEV;
 
-	if (!device_active(current))
+	if (!eth_is_active(current))
 		return -EINVAL;
 
 	ret = eth_get_ops(current)->send(current, packet, length);
@@ -359,7 +359,7 @@ int eth_rx(void)
 	if (!current)
 		return -ENODEV;
 
-	if (!device_active(current))
+	if (!eth_is_active(current))
 		return -EINVAL;
 
 	/* Process up to 32 packets at one time */
