diff mbox series

[4.4,275/312] bnxt_en: Remove locking around txr->dev_state

Message ID 20200508123143.771875671@linuxfoundation.org
State New
Headers show
Series None | expand

Commit Message

Greg Kroah-Hartman May 8, 2020, 12:34 p.m. UTC 
From: Florian Fainelli <f.fainelli@gmail.com>

commit cbce91cad4ee39070bf3c7873767194e4be88e16 upstream.

txr->dev_state was not consistently manipulated with the acquisition of
the per-queue lock, after further inspection the lock does not seem
necessary, either the value is read as BNXT_DEV_STATE_CLOSING or 0.

Reported-by: coverity (CID 1339583)
Fixes: c0c050c58d840 ("bnxt_en: New Broadcom ethernet driver.")
Signed-off-by: Florian Fainelli <f.fainelli@gmail.com>
Acked-by: Michael Chan <michael.chan@broadcom.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

---
 drivers/net/ethernet/broadcom/bnxt/bnxt.c |    2 --
 1 file changed, 2 deletions(-)
diff mbox series

Patch

--- a/drivers/net/ethernet/broadcom/bnxt/bnxt.c
+++ b/drivers/net/ethernet/broadcom/bnxt/bnxt.c
@@ -4310,9 +4310,7 @@  static void bnxt_tx_disable(struct bnxt
 			bnapi = bp->bnapi[i];
 			txr = &bnapi->tx_ring;
 			txq = netdev_get_tx_queue(bp->dev, i);
-			__netif_tx_lock(txq, smp_processor_id());
 			txr->dev_state = BNXT_DEV_STATE_CLOSING;
-			__netif_tx_unlock(txq);
 		}
 	}
 	/* Stop all TX queues */