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authorGanesh Goudar <ganeshgr@chelsio.com>2017-05-31 18:26:28 +0530
committerDavid S. Miller <davem@davemloft.net>2017-06-02 14:06:23 -0400
commite7519f9926f1d0d11c776eb0475eb098c7760f68 (patch)
tree0b9689526922b65c31b4e05ae16d4efab4bbac1f /drivers/net/ethernet/chelsio/cxgb4/cxgb4_main.c
parent6e80ac5cc992ab6256c3dae87f7e57db15e1a58c (diff)
downloadlinux-stericsson-e7519f9926f1d0d11c776eb0475eb098c7760f68.tar.gz
cxgb4: avoid enabling napi twice to the same queue
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>
Diffstat (limited to 'drivers/net/ethernet/chelsio/cxgb4/cxgb4_main.c')
-rw-r--r--drivers/net/ethernet/chelsio/cxgb4/cxgb4_main.c4
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 b512149684fd..77ed2f628f9c 100644
--- a/drivers/net/ethernet/chelsio/cxgb4/cxgb4_main.c
+++ b/drivers/net/ethernet/chelsio/cxgb4/cxgb4_main.c
@@ -2196,10 +2196,14 @@ 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);