Mark hpt27xx for removal in 13.0; all CAM drivers will be Giant-free by then.

Relnotes:	yes

share/man/man4/hpt27xx.4

@@ -44,6 +44,9 @@ module at boot time, place the following line in
 .Bd -literal -offset indent
 hpt27xx_load="YES"
 .Ed
+.Sh DEPRECATION NOTICE
+This driver is scheduled for removal prior to the release of
+.Fx 13.0 .
 .Sh DESCRIPTION
 The
 .Nm

sys/dev/hpt27xx/hpt27xx_osm_bsd.c

@@ -76,7 +76,9 @@ static int hpt_attach(device_t dev)
 	HPT_UINT size;
 	PVBUS vbus;
 	PVBUS_EXT vbus_ext;
-	
+
+	gone_in(13, "Giant locked CAM drivers");
+
 	KdPrint(("hpt_attach(%d/%d/%d)", pci_get_bus(dev), pci_get_slot(dev), pci_get_function(dev)));
 
 	him = hpt_match(dev, 1);