From: Heinz Mauelshagen <heinzm@redhat.com>
Date: Thu, 13 Jul 2017 15:33:22 +0000 (+0200)
Subject: dm raid: remove WARN_ON() in raid10_md_layout_to_format()
X-Git-Url: https://git.stricted.de/?a=commitdiff_plain;h=bbac1e06a415c0658dd328ba9c5f640c2d97be3a;p=GitHub%2Fmoto-9609%2Fandroid_kernel_motorola_exynos9610.git

dm raid: remove WARN_ON() in raid10_md_layout_to_format()

Signed-off-by: Heinz Mauelshagen <heinzm@redhat.com>
Signed-off-by: Mike Snitzer <snitzer@redhat.com>
---

diff --git a/drivers/md/dm-raid.c b/drivers/md/dm-raid.c
index 2e10c2f13a34..b409015c6909 100644
--- a/drivers/md/dm-raid.c
+++ b/drivers/md/dm-raid.c
@@ -564,9 +564,10 @@ static const char *raid10_md_layout_to_format(int layout)
 	if (__raid10_near_copies(layout) > 1)
 		return "near";
 
-	WARN_ON(__raid10_far_copies(layout) < 2);
+	if (__raid10_far_copies(layout) > 1)
+		return "far";
 
-	return "far";
+	return "unknown";
 }
 
 /* Return md raid10 algorithm for @name */