[PATCH v2 ethtool] ethtool: Remove UDP Fragmentation Offload error prints

From: Shaker Daibes <redacted>

UFO was removed in kernel, here we remove UFO error prints when using
"ethtool -k" command.

Fixes the following issue:
Features for ens8:
Cannot get device udp-fragmentation-offload settings: Operation not
supported

Signed-off-by: Shaker Daibes <redacted>
Signed-off-by: Tariq Toukan <redacted>
---
 ethtool.c | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/ethtool.c b/ethtool.c
index ad18704e7c5f..aeeef65e7ef3 100644
--- a/ethtool.c
+++ b/ethtool.c

@@ -2186,6 +2186,10 @@ get_features(struct cmd_context *ctx, const struct feature_defs *defs)
 		eval.cmd = off_flag_def[i].get_cmd;
 		err = send_ioctl(ctx, &eval);
 		if (err) {
+			if (errno == EOPNOTSUPP &&
+			    off_flag_def[i].get_cmd == ETHTOOL_GUFO)
+				continue;
+
 			fprintf(stderr,
 				"Cannot get device %s settings: %m\n",
 				off_flag_def[i].long_name);

-- 
1.8.3.1