X-Git-Url: http://demsky.eecs.uci.edu/git/?a=blobdiff_plain;f=Documentation%2Fnetworking%2Fdriver.txt;h=ea72d2e66ca81a62fa493b695ed0e5cf94fc92a4;hb=2eccd6f65a0d4844318b1e30755cafd063833908;hp=a9ad58b49cc5459c82789bce189d9af51f77344e;hpb=5f3fdeb6242d84126e4bd45ac9e2246833fe8352;p=firefly-linux-kernel-4.4.55.git

diff --git a/Documentation/networking/driver.txt b/Documentation/networking/driver.txt
index a9ad58b49cc5..ea72d2e66ca8 100644
--- a/Documentation/networking/driver.txt
+++ b/Documentation/networking/driver.txt
@@ -37,7 +37,7 @@ Transmit path guidelines:
 		...
 	}
 
-   And then at the end of your TX reclaimation event handling:
+   And then at the end of your TX reclamation event handling:
 
 	if (netif_queue_stopped(dp->dev) &&
             TX_BUFFS_AVAIL(dp) > (MAX_SKB_FRAGS + 1))
@@ -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.