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hvc_vio: Do not override preferred console set by kernel parameter 

The original version of this was done by Bastian Blank, who wrote:

> The problem is the following:
> - Architecture specific code sets preferred console to something bogus.
> - Command line handling tries to set preferred console but is overruled
>   by the old setting.
>
> The udbg0 console is a boot console and independant.

References: http://bugs.debian.org/492703
Signed-off-by: Ben Hutchings <ben@decadent.org.uk>
Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
Ben Hutchings 2013-09-01 17:24:16 +01:00 committed by Greg Kroah-Hartman
parent 216fce2e78
commit 1926d0aeec
1 changed files with 4 additions and 1 deletions
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5
drivers/tty/hvc/hvc_vio.c
View File

@ -48,6 +48,7 @@
#include <asm/prom.h>
#include <asm/hvsi.h>
#include <asm/udbg.h>
#include <asm/machdep.h>
#include "hvc_console.h"
@ -457,7 +458,9 @@ void __init hvc_vio_init_early(void)
if (hvterm_priv0.proto == HV_PROTOCOL_HVSI)
goto out;
#endif
add_preferred_console("hvc", 0, NULL);
/* Check whether the user has requested a different console. */
if (!strstr(cmd_line, "console="))
add_preferred_console("hvc", 0, NULL);
hvc_instantiate(0, 0, ops);
out:
of_node_put(stdout_node);