diff --git a/.topdeps b/.topdeps
new file mode 100644
index 0000000000..1f7391f92b
--- /dev/null
+++ b/.topdeps
@@ -0,0 +1 @@
+master
diff --git a/.topmsg b/.topmsg
new file mode 100644
index 0000000000..0289182afa
--- /dev/null
+++ b/.topmsg
@@ -0,0 +1,8 @@
+From: Brian Behlendorf <behlendorf1@llnl.gov>
+Subject: [PATCH] gcc warning useless debug
+
+Gcc useless debugging
+
+Signed-off-by: Brian Behlendorf <behlendorf1@llnl.gov>
+
+---
diff --git a/zfs/lib/libzpool/dnode.c b/zfs/lib/libzpool/dnode.c
index 3d40dc2439..645bda0b5a 100644
--- a/zfs/lib/libzpool/dnode.c
+++ b/zfs/lib/libzpool/dnode.c
@@ -132,7 +132,6 @@ dnode_verify(dnode_t *dn)
 	}
 	if (dn->dn_phys->dn_type != DMU_OT_NONE || dn->dn_allocated_txg != 0) {
 		int i;
-		ASSERT3U(dn->dn_indblkshift, >=, 0);
 		ASSERT3U(dn->dn_indblkshift, <=, SPA_MAXBLOCKSHIFT);
 		if (dn->dn_datablkshift) {
 			ASSERT3U(dn->dn_datablkshift, >=, SPA_MINBLOCKSHIFT);