From e288c9f1de8a1b21a77cbfb80dfec37f2515e33c Mon Sep 17 00:00:00 2001
From: Kent Overstreet <kent.overstreet@gmail.com>
Date: Sat, 3 Nov 2018 16:58:41 -0400
Subject: [PATCH] fix a (spurious) gcc warning

---
 libbcachefs.c | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/libbcachefs.c b/libbcachefs.c
index 58ef5297..da318611 100644
--- a/libbcachefs.c
+++ b/libbcachefs.c
@@ -196,7 +196,9 @@ struct bch_sb *bch2_format(struct format_opts opts,
 	uuid_generate(sb.sb->uuid.b);
 
 	if (opts.label)
-		strncpy((char *) sb.sb->label, opts.label, sizeof(sb.sb->label));
+		memcpy(sb.sb->label,
+		       opts.label,
+		       min(strlen(opts.label), sizeof(sb.sb->label)));
 
 	SET_BCH_SB_CSUM_TYPE(sb.sb,		opts.meta_csum_type);
 	SET_BCH_SB_META_CSUM_TYPE(sb.sb,	opts.meta_csum_type);