conf: allow multiple arrays to be <ignore>d

We currently complain if mdadm.conf contains multiple
definitions for the same name.  Unfortunately this stops
multiple arrays  from being <ignored>d.

So exclude "<ignore>" from the duplicate-names test.

Reported-by: Mike Frysinger <vapier@gentoo.org>
Signed-off-by: NeilBrown <neilb@suse.de>

1 files changed, 2 insertions, 0 deletions

diff --git a/config.c b/config.c
index 656d4e2f..8461309a 100644
--- a/config.c
+++ b/config.c
@@ -1095,6 +1095,8 @@ int conf_verify_devnames(struct mddev_ident *array_list)
 	for (a1 = array_list; a1; a1 = a1->next) {
 		if (!a1->devname)
 			continue;
+		if (strcmp(a1->devname, "<ignore>") == 0)
+			continue;
 		for (a2 = a1->next; a2; a2 = a2->next) {
 			if (!a2->devname)
 				continue;