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Subject[PATCH] netronome: don't access real_num_rx_queues directly
Date
The netdev->real_num_rx_queues setting is only available if CONFIG_SYSFS
is enabled, so we now get a build failure when that is turned off:

netronome/nfp/nfp_net_common.c: In function 'nfp_net_ring_swap_enable':
netronome/nfp/nfp_net_common.c:2489:18: error: 'struct net_device' has no member named 'real_num_rx_queues'; did you mean 'real_num_tx_queues'?

As far as I can tell, the check here is only used as an optimization that
we can skip in order to fix the compilation. If sysfs is disabled,
the following netif_set_real_num_rx_queues() has no effect.

Fixes: 164d1e9e5d52 ("nfp: add support for ethtool .set_channels")
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
---
drivers/net/ethernet/netronome/nfp/nfp_net_common.c | 14 ++++++--------
1 file changed, 6 insertions(+), 8 deletions(-)

diff --git a/drivers/net/ethernet/netronome/nfp/nfp_net_common.c b/drivers/net/ethernet/netronome/nfp/nfp_net_common.c
index 99edb9fd84bf..eb3715700c95 100644
--- a/drivers/net/ethernet/netronome/nfp/nfp_net_common.c
+++ b/drivers/net/ethernet/netronome/nfp/nfp_net_common.c
@@ -2486,15 +2486,13 @@ nfp_net_ring_swap_enable(struct nfp_net *nn, unsigned int *num_vecs,
for (r = 0; r < nn->max_r_vecs; r++)
nfp_net_vector_assign_rings(nn, &nn->r_vecs[r], r);

- if (nn->netdev->real_num_rx_queues != nn->num_rx_rings) {
- if (!netif_is_rxfh_configured(nn->netdev))
- nfp_net_rss_init_itbl(nn);
+ if (!netif_is_rxfh_configured(nn->netdev))
+ nfp_net_rss_init_itbl(nn);

- err = netif_set_real_num_rx_queues(nn->netdev,
- nn->num_rx_rings);
- if (err)
- return err;
- }
+ err = netif_set_real_num_rx_queues(nn->netdev,
+ nn->num_rx_rings);
+ if (err)
+ return err;

if (nn->netdev->real_num_tx_queues != nn->num_stack_tx_rings) {
err = netif_set_real_num_tx_queues(nn->netdev,
--
2.9.0
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