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-rw-r--r--Documentation/networking/netdevices.txt2
1 files changed, 2 insertions, 0 deletions
diff --git a/Documentation/networking/netdevices.txt b/Documentation/networking/netdevices.txt
index 1509f3aff968..3c0a5ba614d7 100644
--- a/Documentation/networking/netdevices.txt
+++ b/Documentation/networking/netdevices.txt
@@ -51,6 +51,8 @@ dev->hard_start_xmit:
set_multicast_list
Context: BHs disabled
Notes: netif_queue_stopped() is guaranteed false
+ Interrupts must be enabled when calling hard_start_xmit.
+ (Interrupts must also be enabled when enabling the BH handler.)
Return codes:
o NETDEV_TX_OK everything ok.
o NETDEV_TX_BUSY Cannot transmit packet, try later