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

Russell King (Oracle)
2026-04-01T07:22:29Z

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@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