[PATCHv3 net 5/5] nfp: don't trust netif_running() in debug code

[Jakub Kicinski]

Since change_mtu() can fail and leave us with netif_running()
returning true even though all rings were freed - we should
look at NFP_NET_CFG_CTRL_ENABLE flag to determine if device
is really opened.

Signed-off-by: Jakub Kicinski <jakub.kicin...@netronome.com>
---
 drivers/net/ethernet/netronome/nfp/nfp_net_debugfs.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/drivers/net/ethernet/netronome/nfp/nfp_net_debugfs.c 
b/drivers/net/ethernet/netronome/nfp/nfp_net_debugfs.c
index 4c97c713121c..7af404d492cc 100644
--- a/drivers/net/ethernet/netronome/nfp/nfp_net_debugfs.c
+++ b/drivers/net/ethernet/netronome/nfp/nfp_net_debugfs.c
@@ -52,7 +52,7 @@ static int nfp_net_debugfs_rx_q_read(struct seq_file *file, 
void *data)
        if (!rx_ring->r_vec || !rx_ring->r_vec->nfp_net)
                goto out;
        nn = rx_ring->r_vec->nfp_net;
-       if (!netif_running(nn->netdev))
+       if (!(nn->ctrl & NFP_NET_CFG_CTRL_ENABLE))
                goto out;
 
        rxd_cnt = rx_ring->cnt;
@@ -127,7 +127,7 @@ static int nfp_net_debugfs_tx_q_read(struct seq_file *file, 
void *data)
        if (!tx_ring->r_vec || !tx_ring->r_vec->nfp_net)
                goto out;
        nn = tx_ring->r_vec->nfp_net;
-       if (!netif_running(nn->netdev))
+       if (!(nn->ctrl & NFP_NET_CFG_CTRL_ENABLE))
                goto out;
 
        txd_cnt = tx_ring->cnt;
-- 
1.9.1