sfc: Fix loopback self-test with separate_tx_channels=1
The loopback self-test iterates over all the TX queues of channel 0,
which is not very interesting when that's an RX-only channel.
Signed-off-by: Ben Hutchings <bhutchings@solarflre.com>
diff --git a/drivers/net/ethernet/sfc/ethtool.c b/drivers/net/ethernet/sfc/ethtool.c
index 9df556c..cf77207 100644
--- a/drivers/net/ethernet/sfc/ethtool.c
+++ b/drivers/net/ethernet/sfc/ethtool.c
@@ -337,7 +337,8 @@
unsigned int test_index,
struct ethtool_string *strings, u64 *data)
{
- struct efx_channel *channel = efx_get_channel(efx, 0);
+ struct efx_channel *channel =
+ efx_get_channel(efx, efx->tx_channel_offset);
struct efx_tx_queue *tx_queue;
efx_for_each_channel_tx_queue(tx_queue, channel) {