[PATCH net] net: Disable NETIF_F_HW_TLS_TX when HW_CSUM is disabled

[Tariq Toukan]

With NETIF_F_HW_TLS_TX packets are encrypted in HW. This cannot be
logically done when HW_CSUM offload is off.

Fixes: 2342a8512a1e ("net: Add TLS TX offload features")
Signed-off-by: Tariq Toukan <tar...@nvidia.com>
Reviewed-by: Boris Pismenny <bor...@nvidia.com>
---
 net/core/dev.c | 5 +++++
 1 file changed, 5 insertions(+)

Hi,

Please queue to -stable >= v4.18.
Thanks.

diff --git a/net/core/dev.c b/net/core/dev.c
index 82dc6b48e45f..5f72ea17d3f7 100644
--- a/net/core/dev.c
+++ b/net/core/dev.c
@@ -9588,6 +9588,11 @@ static netdev_features_t netdev_fix_features(struct 
net_device *dev,
                }
        }
 
+       if ((features & NETIF_F_HW_TLS_TX) && !(features & NETIF_F_HW_CSUM)) {
+               netdev_dbg(dev, "Dropping TLS TX HW offload feature since no 
CSUM feature.\n");
+               features &= ~NETIF_F_HW_TLS_TX;
+       }
+
        return features;
 }
 
-- 
2.21.0