--- zzzz-none-000/linux-3.10.107/arch/powerpc/kernel/prom_init_check.sh	2017-06-27 09:49:32.000000000 +0000
+++ scorpion-7490-727/linux-3.10.107/arch/powerpc/kernel/prom_init_check.sh	2021-02-04 17:41:59.000000000 +0000
@@ -21,8 +21,7 @@
 __secondary_hold_acknowledge __secondary_hold_spinloop __start
 strcmp strcpy strlcpy strlen strncmp strstr logo_linux_clut224
 reloc_got2 kernstart_addr memstart_addr linux_banner _stext
-opal_query_takeover opal_do_takeover opal_enter_rtas opal_secondary_entry
-boot_command_line __prom_init_toc_start __prom_init_toc_end"
+__prom_init_toc_start __prom_init_toc_end btext_setup_display TOC."
 
 NM="$1"
 OBJ="$2"
@@ -51,24 +50,14 @@
 	done
 
 	# ignore register save/restore funcitons
-	if [ "${UNDEF:0:9}" = "_restgpr_" ]; then
+	case $UNDEF in
+	_restgpr_*|_restgpr0_*|_rest32gpr_*)
 		OK=1
-	fi
-	if [ "${UNDEF:0:10}" = "_restgpr0_" ]; then
-		OK=1
-	fi
-	if [ "${UNDEF:0:11}" = "_rest32gpr_" ]; then
-		OK=1
-	fi
-	if [ "${UNDEF:0:9}" = "_savegpr_" ]; then
+		;;
+	_savegpr_*|_savegpr0_*|_save32gpr_*)
 		OK=1
-	fi
-	if [ "${UNDEF:0:10}" = "_savegpr0_" ]; then
-		OK=1
-	fi
-	if [ "${UNDEF:0:11}" = "_save32gpr_" ]; then
-		OK=1
-	fi
+		;;
+	esac
 
 	if [ $OK -eq 0 ]; then
 		ERROR=1