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cxgb4: avoid enabling napi twice to the same queue
authorGanesh Goudar <ganeshgr@chelsio.com>
Wed, 31 May 2017 12:56:28 +0000 (18:26 +0530)
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>
Wed, 14 Jun 2017 13:05:52 +0000 (15:05 +0200)
commit61c92d5a533c884d93b129cd4ad412a9128db9b7
tree80d7c8d079301533eb1e72be9151ba6edea039b1
parentabbcb731d69cfa7fbcd7b77514ae04764827fdbf
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>
drivers/net/ethernet/chelsio/cxgb4/cxgb4_main.c