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-rw-r--r--init/halt.c7
1 files changed, 6 insertions, 1 deletions
diff --git a/init/halt.c b/init/halt.c
index c88c333..16906df 100644
--- a/init/halt.c
+++ b/init/halt.c
@@ -40,10 +40,15 @@ static void write_wtmp(void)
#define RB_HALT_SYSTEM RB_HALT
#endif
+#ifndef RB_POWERDOWN
+/* Stop system and switch power off if possible. */
+# define RB_POWERDOWN 0x4321fedc
+#endif
#ifndef RB_POWER_OFF
-#define RB_POWER_OFF RB_POWERDOWN
+# define RB_POWER_OFF RB_POWERDOWN
#endif
+
int halt_main(int argc, char **argv) MAIN_EXTERNALLY_VISIBLE;
int halt_main(int argc UNUSED_PARAM, char **argv)
{