netdev: Make ethtool_ops::set_flags() return -EINVAL for unsupported flags

The documented error code for attempts to set unsupported flags (or
to clear flags that cannot be disabled) is EINVAL, not EOPNOTSUPP.

Signed-off-by: Ben Hutchings <bhutchings@solarflare.com>
Acked-by: Eilon Greenstein <eilong@broadcom.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

1 files changed, 1 insertions, 1 deletions

diff --git a/drivers/net/s2io.c b/drivers/net/s2io.c
index a032d726d640..22371f1dca58 100644
--- a/drivers/net/s2io.c
+++ b/drivers/net/s2io.c
@@ -6692,7 +6692,7 @@ static int s2io_ethtool_set_flags(struct net_device *dev, u32 data)
         int changed = 0;
 
         if (data & ~ETH_FLAG_LRO)
-                return -EOPNOTSUPP;
+                return -EINVAL;
 
         if (data & ETH_FLAG_LRO) {
                 if (lro_enable) {