diff options
| author | Ganesh Goudar <ganeshgr@chelsio.com> | 2017-05-31 18:26:28 +0530 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2017-06-14 15:05:52 +0200 |
| commit | 61c92d5a533c884d93b129cd4ad412a9128db9b7 (patch) | |
| tree | 80d7c8d079301533eb1e72be9151ba6edea039b1 /drivers | |
| parent | abbcb731d69cfa7fbcd7b77514ae04764827fdbf (diff) | |
cxgb4: avoid enabling napi twice to the same queue
[ Upstream commit e7519f9926f1d0d11c776eb0475eb098c7760f68 ]
Take uld mutex to avoid race between cxgb_up() and
cxgb4_register_uld() to enable napi for the same uld
queue.
Signed-off-by: Ganesh Goudar <ganeshgr@chelsio.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'drivers')
| -rw-r--r-- | drivers/net/ethernet/chelsio/cxgb4/cxgb4_main.c | 4 |
1 files changed, 4 insertions, 0 deletions
diff --git a/drivers/net/ethernet/chelsio/cxgb4/cxgb4_main.c b/drivers/net/ethernet/chelsio/cxgb4/cxgb4_main.c index 19dc9e25aa72..f9c2feb4a4e7 100644 --- a/drivers/net/ethernet/chelsio/cxgb4/cxgb4_main.c +++ b/drivers/net/ethernet/chelsio/cxgb4/cxgb4_main.c @@ -2226,10 +2226,14 @@ static int cxgb_up(struct adapter *adap) if (err) goto irq_err; } + + mutex_lock(&uld_mutex); enable_rx(adap); t4_sge_start(adap); t4_intr_enable(adap); adap->flags |= FULL_INIT_DONE; + mutex_unlock(&uld_mutex); + notify_ulds(adap, CXGB4_STATE_UP); #if IS_ENABLED(CONFIG_IPV6) update_clip(adap); |