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| author | Jarek Poplawski <jarkao2@gmail.com> | 2009-11-15 07:20:12 (GMT) |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2009-11-16 06:08:33 (GMT) |
| commit | 9a1654ba0b50402a6bd03c7b0fe9b0200a5ea7b1 (patch) | |
| tree | 3defd37672da2069e6c0ffd86b0b99c694324985 /net/core | |
| parent | cb43e23435a66d5ed90f804af9efe9096503979f (diff) | |
| download | linux-9a1654ba0b50402a6bd03c7b0fe9b0200a5ea7b1.tar.xz | |
net: Optimize hard_start_xmit() return checking
Recent changes in the TX error propagation require additional checking
and masking of values returned from hard_start_xmit(), mainly to
separate cases where skb was consumed. This aim can be simplified by
changing the order of NETDEV_TX and NET_XMIT codes, because the latter
are treated similarly to negative (ERRNO) values.
After this change much simpler dev_xmit_complete() is also used in
sch_direct_xmit(), so it is moved to netdevice.h.
Additionally NET_RX definitions in netdevice.h are moved up from
between TX codes to avoid confusion while reading the TX comment.
Signed-off-by: Jarek Poplawski <jarkao2@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'net/core')
| -rw-r--r-- | net/core/dev.c | 17 |
1 files changed, 0 insertions, 17 deletions
diff --git a/net/core/dev.c b/net/core/dev.c index 32045df..4b24d79 100644 --- a/net/core/dev.c +++ b/net/core/dev.c @@ -1924,23 +1924,6 @@ static inline int __dev_xmit_skb(struct sk_buff *skb, struct Qdisc *q, return rc; } -static inline bool dev_xmit_complete(int rc) -{ - /* successful transmission */ - if (rc == NETDEV_TX_OK) - return true; - - /* error while transmitting, driver consumed skb */ - if (rc < 0) - return true; - - /* error while queueing to a different device, driver consumed skb */ - if (rc & NET_XMIT_MASK) - return true; - - return false; -} - /** * dev_queue_xmit - transmit a buffer * @skb: buffer to transmit |