X-Git-Url: https://git.karo-electronics.de/?a=blobdiff_plain;f=Documentation%2Fnetworking%2Fdriver.txt;h=03283daa64fef72360667fb979a256aa10a3bb91;hb=c4fd308ed62f292518363ea9c6c2adb3c2d95f9d;hp=4f7da5a2bf4f8ce7c3300f49fae7e073cdf51380;hpb=946b92437e550d6ed80213bf54a1f383e141aede;p=karo-tx-linux.git

diff --git a/Documentation/networking/driver.txt b/Documentation/networking/driver.txt
index 4f7da5a2bf4f..03283daa64fe 100644
--- a/Documentation/networking/driver.txt
+++ b/Documentation/networking/driver.txt
@@ -13,7 +13,7 @@ Transmit path guidelines:
 	static int drv_hard_start_xmit(struct sk_buff *skb,
 		   		       struct net_device *dev)
 	{
-		struct drv *dp = dev->priv;
+		struct drv *dp = netdev_priv(dev);
 
 		lock_tx(dp);
 		...
@@ -61,7 +61,10 @@ Transmit path guidelines:
 2) Do not forget to update netdev->trans_start to jiffies after
    each new tx packet is given to the hardware.
 
-3) Do not forget that once you return 0 from your hard_start_xmit
+3) A hard_start_xmit method must not modify the shared parts of a
+   cloned SKB.
+
+4) Do not forget that once you return 0 from your hard_start_xmit
    method, it is your driver's responsibility to free up the SKB
    and in some finite amount of time.