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doc, net: Remove instruction to set net_device::trans_start

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Commit 08baf56108 ('net:
txq_trans_update() helper') made it unnecessary for most drivers to
set net_device::trans_start (or netdev_queue::trans_start).

Signed-off-by: Ben Hutchings <bhutchings@solarflare.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Ben Hutchings 2012-04-05 14:40:06 +00:00 committed by David S. Miller
parent b3cf65457f
commit de7aca16fd
1 changed files with 2 additions and 5 deletions
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7
Documentation/networking/driver.txt
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@ -58,13 +58,10 @@ Transmit path guidelines:
TX_BUFFS_AVAIL(dp) > 0) TX_BUFFS_AVAIL(dp) > 0)
netif_wake_queue(dp->dev); netif_wake_queue(dp->dev);
2) Do not forget to update netdev->trans_start to jiffies after 2) An ndo_start_xmit method must not modify the shared parts of a
each new tx packet is given to the hardware.
3) An ndo_start_xmit method must not modify the shared parts of a
cloned SKB. cloned SKB.
4) Do not forget that once you return 0 from your ndo_start_xmit 3) Do not forget that once you return 0 from your ndo_start_xmit
method, it is your driver's responsibility to free up the SKB method, it is your driver's responsibility to free up the SKB
and in some finite amount of time. and in some finite amount of time.