ixgbevf: set the disable state when ixgbevf_qv_disable is called

The ixgbevf_qv_disable function used by CONFIG_NET_RX_BUSY_POLL is broken,
because it does not properly set the IXGBEVF_QV_STATE_DISABLED bit, indicating
that the q_vector should be disabled (and preventing future locks from
obtaining the vector). This patch corrects the issue by setting the disable
state.

Signed-off-by: Jacob Keller <[email protected]>
Tested-by: Phil Schmitt <[email protected]>
Signed-off-by: Aaron Brown <[email protected]>
Signed-off-by: David S. Miller <[email protected]>

diff --git a/drivers/net/ethernet/intel/ixgbevf/ixgbevf.h b/drivers/net/ethernet/intel/ixgbevf/ixgbevf.h
index bb76e96f8278caf09c11fbd049ccac83b1acc32c..d7cec1d59821c1023f632557c1fb8be1451680d6 100644 (file)
--- a/drivers/net/ethernet/intel/ixgbevf/ixgbevf.h
+++ b/drivers/net/ethernet/intel/ixgbevf/ixgbevf.h
@@ -260,6 +260,7 @@ static inline bool ixgbevf_qv_disable(struct ixgbevf_q_vector *q_vector)
        spin_lock_bh(&q_vector->lock);
        if (q_vector->state & IXGBEVF_QV_OWNED)
                rc = false;
+       q_vector->state |= IXGBEVF_QV_STATE_DISABLED;
        spin_unlock_bh(&q_vector->lock);
        return rc;
 }