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-rw-r--r--kernel/printk.c22
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