serial8250: Mark console as CON_ANYTIME
authorPeter Zijlstra <peterz@infradead.org>
Mon, 15 Nov 2010 20:11:12 +0000 (21:11 +0100)
committerGreg Kroah-Hartman <gregkh@suse.de>
Tue, 16 Nov 2010 21:29:54 +0000 (13:29 -0800)
While trying to debug a cpu-hotplug issue I noticed printk() stopped
working once the cpu got marked offline, since the 8250 serial console
doesn't have any per-cpu resources the CON_ANYTIME bit is the safe and
documented way to make it work again.

Signed-off-by: Peter Zijlstra <a.p.zijlstra@chello.nl>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
drivers/serial/8250.c

index 4d8e14b7aa931bcf3de11c6e5805005e0bf413ca..09a550860dcf7acc702523319332972ed02f7249 100644 (file)
@@ -2872,7 +2872,7 @@ static struct console serial8250_console = {
        .device         = uart_console_device,
        .setup          = serial8250_console_setup,
        .early_setup    = serial8250_console_early_setup,
-       .flags          = CON_PRINTBUFFER,
+       .flags          = CON_PRINTBUFFER | CON_ANYTIME,
        .index          = -1,
        .data           = &serial8250_reg,
 };