net: ethtool: tsconfig: set command must provide a reply

Timestamping configuration through ethtool has inconsistent behavior of
skipping the reply for set command if configuration was not changed. Fix
it be providing reply in any case.

Fixes: 6e9e2ee ("net: ethtool: Add support for tsconfig command to get/set hwtstamp config")
Signed-off-by: Vadim Fedorenko <[email protected]>
Reviewed-by: Kory Maincent <[email protected]>
Link: https://patch.msgid.link/[email protected]
Signed-off-by: Jakub Kicinski <[email protected]>

Author: vvfedorenko

net/ethtool/tsconfig.c

@@ -423,13 +423,11 @@ static int ethnl_set_tsconfig(struct ethnl_req_info *req_base,
 			return ret;
 	}
 
-	if (hwprov_mod || config_mod) {
-		ret = tsconfig_send_reply(dev, info);
-		if (ret && ret != -EOPNOTSUPP) {
-			NL_SET_ERR_MSG(info->extack,
-				       "error while reading the new configuration set");
-			return ret;
-		}
+	ret = tsconfig_send_reply(dev, info);
+	if (ret && ret != -EOPNOTSUPP) {
+		NL_SET_ERR_MSG(info->extack,
+			       "error while reading the new configuration set");
+		return ret;
 	}
 
 	/* tsconfig has no notification */