From baef6c410b6bbddeb6ac28807920f2251003c3fc Mon Sep 17 00:00:00 2001
From: imp <imp@FreeBSD.org>
Date: Wed, 9 Aug 2017 16:37:37 +0000
Subject: [PATCH] Also provide a warning for geom_fox.

Differential Review: https://reviews.freebsd.org/D11935
Requested by: jhb@
MFC After: 3 days
---
 sys/geom/geom_fox.c | 11 ++++++++++-
 1 file changed, 10 insertions(+), 1 deletion(-)

diff --git a/sys/geom/geom_fox.c b/sys/geom/geom_fox.c
index 2fea00d963a5..ed3396781aa5 100644
--- a/sys/geom/geom_fox.c
+++ b/sys/geom/geom_fox.c
@@ -53,6 +53,8 @@
 #define FOX_CLASS_NAME "FOX"
 #define FOX_MAGIC	"GEOM::FOX"
 
+static int g_fox_once;
+
 FEATURE(geom_fox, "GEOM FOX redundant path mitigation support");
 
 struct g_fox_softc {
@@ -438,8 +440,15 @@ printf("fox %s lock %p\n", gp->name, &sc->lock);
 		g_free(buf);
 	g_access(cp, -1, 0, 0);
 
-	if (!LIST_EMPTY(&gp->provider))
+	if (!LIST_EMPTY(&gp->provider)) {
+		if (!g_fox_once) {
+			g_fox_once = 1;
+			printf(
+			    "WARNING: geom_fox (geom %s) is deprecated, "
+			    "use gmultipath instead.\n", gp->name);
+		}
 		return (gp);
+	}
 
 	g_free(gp->softc);
 	g_detach(cp);