1 files changed, 22 insertions, 0 deletions

diff --git a/kernel/printk.c b/kernel/printk.c
index 7ce9a8c13312..f46cc6dff46e 100644
--- a/kernel/printk.c
+++ b/kernel/printk.c
@@ -726,6 +726,25 @@ int __init add_preferred_console(char *name, int idx, char *options)
         return 0;
 }
 
+int __init update_console_cmdline(char *name, int idx, char *name_new, int idx_new, char *options)
+{
+        struct console_cmdline *c;
+        int i;
+
+        for (i = 0; i < MAX_CMDLINECONSOLES && console_cmdline[i].name[0]; i++)
+                if (strcmp(console_cmdline[i].name, name) == 0 &&
+                          console_cmdline[i].index == idx) {
+                                c = &console_cmdline[i];
+                                memcpy(c->name, name_new, sizeof(c->name));
+                                c->name[sizeof(c->name) - 1] = 0;
+                                c->options = options;
+                                c->index = idx_new;
+                                return i;
+                }
+        /* not found */
+        return -1;
+}
+
 #ifndef CONFIG_DISABLE_CONSOLE_SUSPEND
 /**
  * suspend_console - suspend the console subsystem
@@ -942,6 +961,9 @@ void register_console(struct console *console)
         if (preferred_console < 0 || bootconsole || !console_drivers)
                 preferred_console = selected_console;
 
+        if (console->early_setup)
+                console->early_setup();
+
         /*
          *      See if we want to use this console driver. If we
          *      didn't select a console we take the first one