浏览代码

[PATCH] USB: minor gadget/rndis tweak

Resove a minor FIXME:  don't change MTU while RNDIS link is active,
the other end won't expect such things...

Signed-off-by: David Brownell <dbrownell@users.sourceforge.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
David Brownell 19 年之前
父节点
当前提交
7802ac5c29
共有 1 个文件被更改,包括 2 次插入1 次删除
  1. 2 1
      drivers/usb/gadget/ether.c

+ 2 - 1
drivers/usb/gadget/ether.c

@@ -1549,7 +1549,8 @@ static int eth_change_mtu (struct net_device *net, int new_mtu)
 {
 	struct eth_dev	*dev = netdev_priv(net);
 
-	// FIXME if rndis, don't change while link's live
+	if (dev->rndis)
+		return -EBUSY;
 
 	if (new_mtu <= ETH_HLEN || new_mtu > ETH_FRAME_LEN)
 		return -ERANGE;