diff options
| author | Arjun V <arjun@chelsio.com> | 2017-02-02 10:13:29 +0300 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2017-02-03 19:04:32 +0300 |
| commit | 0d4b729dac35bb265533c79b554578a5ec6df384 (patch) | |
| tree | d0ef95577db29d8607ca822a1dc1fad0ab37d324 | |
| parent | 86bc8b310f1f323ccc9a311933e35d3442473034 (diff) | |
| download | linux-0d4b729dac35bb265533c79b554578a5ec6df384.tar.xz | |
cxgb4: Fix uld_send() for ctrl pkts
Without any uld being loaded, uld_txq_info[] will be NULL. uld_send()
is also used for sending control work requests(for eg: setting filter)
that dont require any ulds to be loaded. Hence move uld_txq_info[]
assignment after ctrl_xmit().
Also added a NULL check for uld_txq_info[].
Fixes: 94cdb8bb993a (cxgb4: Add support for dynamic allocation
of resources for ULD).
Signed-off-by: Arjun V <arjun@chelsio.com>
Signed-off-by: Casey Leedom <leedom@chelsio.com>
Signed-off-by: Ganesh Goudar <ganeshgr@chelsio.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
| -rw-r--r-- | drivers/net/ethernet/chelsio/cxgb4/sge.c | 11 |
1 files changed, 8 insertions, 3 deletions
diff --git a/drivers/net/ethernet/chelsio/cxgb4/sge.c b/drivers/net/ethernet/chelsio/cxgb4/sge.c index 0fe04b482c38..09653ae0d2b1 100644 --- a/drivers/net/ethernet/chelsio/cxgb4/sge.c +++ b/drivers/net/ethernet/chelsio/cxgb4/sge.c @@ -1774,15 +1774,20 @@ static inline int uld_send(struct adapter *adap, struct sk_buff *skb, struct sge_uld_txq *txq; unsigned int idx = skb_txq(skb); - txq_info = adap->sge.uld_txq_info[tx_uld_type]; - txq = &txq_info->uldtxq[idx]; - if (unlikely(is_ctrl_pkt(skb))) { /* Single ctrl queue is a requirement for LE workaround path */ if (adap->tids.nsftids) idx = 0; return ctrl_xmit(&adap->sge.ctrlq[idx], skb); } + + txq_info = adap->sge.uld_txq_info[tx_uld_type]; + if (unlikely(!txq_info)) { + WARN_ON(true); + return NET_XMIT_DROP; + } + + txq = &txq_info->uldtxq[idx]; return ofld_xmit(txq, skb); } |