[PATCH net-next v2 12/14] net: stmmac: add warning when TSO is requested but unsupported

[Russell King (Oracle)]

Add a warning message if TSO is requested by the platform glue code but
the core wasn't configured for TSO.

Signed-off-by: Russell King (Oracle) <rmk+kernel at armlinux.org.uk>
---
 drivers/net/ethernet/stmicro/stmmac/stmmac_main.c | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/drivers/net/ethernet/stmicro/stmmac/stmmac_main.c b/drivers/net/ethernet/stmicro/stmmac/stmmac_main.c
index 7134f6c6075b..5286ad6412a3 100644
--- a/drivers/net/ethernet/stmicro/stmmac/stmmac_main.c
+++ b/drivers/net/ethernet/stmicro/stmmac/stmmac_main.c
@@ -4392,8 +4392,10 @@ static void stmmac_set_gso_features(struct net_device *ndev)
 	if (!(priv->plat->flags & STMMAC_FLAG_TSO_EN))
 		return;
 
-	if (!priv->dma_cap.tsoen)
+	if (!priv->dma_cap.tsoen) {
+		dev_warn(priv->device, "platform requests unsupported TSO\n");
 		return;
+	}
 
 	ndev->hw_features |= NETIF_F_TSO | NETIF_F_TSO6;
 	if (priv->plat->core_type == DWMAC_CORE_GMAC4)
-- 
2.47.3