devlink: fix "devlink health dump" command without arg

Fix bug when user calls "devlink health dump" without "show" or "clear":
$ devlink health dump
Command "(null)" not found

Put the dump command into a separate helper as it is usual in the rest
of the code. Also, treat no cmd as "show", as it is common for other
devlink objects.

Fixes: 041e6e651a8e ("devlink: Add devlink health dump show command")
Signed-off-by: Jiri Pirko <jiri@nvidia.com>
Signed-off-by: Stephen Hemminger <stephen@networkplumber.org>

1 files changed, 18 insertions, 7 deletions

diff --git a/devlink/devlink.c b/devlink/devlink.c
index da9f97788..aab739f7f 100644
--- a/devlink/devlink.c
+++ b/devlink/devlink.c
@@ -8526,6 +8526,23 @@ static void cmd_health_help(void)
 	pr_err("                          [ auto_dump    { true | false } ]\n");
 }
 
+static int cmd_health_dump(struct dl *dl)
+{
+	if (dl_argv_match(dl, "help")) {
+		cmd_health_help();
+		return 0;
+	} else if (dl_argv_match(dl, "show") ||
+		   dl_argv_match(dl, "list") || dl_no_arg(dl)) {
+		dl_arg_inc(dl);
+		return cmd_health_dump_show(dl);
+	} else if (dl_argv_match(dl, "clear")) {
+		dl_arg_inc(dl);
+		return cmd_health_dump_clear(dl);
+	}
+	pr_err("Command \"%s\" not found\n", dl_argv(dl));
+	return -ENOENT;
+}
+
 static int cmd_health(struct dl *dl)
 {
 	if (dl_argv_match(dl, "help")) {
@@ -8546,13 +8563,7 @@ static int cmd_health(struct dl *dl)
 		return cmd_health_test(dl);
 	} else if (dl_argv_match(dl, "dump")) {
 		dl_arg_inc(dl);
-		if (dl_argv_match(dl, "show")) {
-			dl_arg_inc(dl);
-			return cmd_health_dump_show(dl);
-		} else if (dl_argv_match(dl, "clear")) {
-			dl_arg_inc(dl);
-			return cmd_health_dump_clear(dl);
-		}
+		return cmd_health_dump(dl);
 	} else if (dl_argv_match(dl, "set")) {
 		dl_arg_inc(dl);
 		return cmd_health_set_params(dl);