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console: Fix compilation regression

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A regression of building without CONFIG_HW_CONSOLE was introduced with
commit b45cfba4e9 (vt,console,kdb:
implement atomic console enter/leave functions).

ERROR: "con_debug_enter" [drivers/serial/kgdboc.ko] undefined!
ERROR: "vc_cons" [drivers/serial/kgdboc.ko] undefined!
ERROR: "fg_console" [drivers/serial/kgdboc.ko] undefined!
ERROR: "con_debug_leave" [drivers/serial/kgdboc.ko] undefined!

When there is no HW console the con_debug_enter and con_debug_leave
functions should have no code.

Signed-off-by: Jason Wessel <jason.wessel@windriver.com>
CC: Jesse Barnes <jbarnes@virtuousgeek.org>
Reported-by: Randy Dunlap <randy.dunlap@oracle.com>
This commit is contained in:
Jason Wessel 2010-08-06 15:36:47 -05:00
parent fc1caf6eaf
commit 9261ec1a8d
1 changed files with 5 additions and 0 deletions
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5
include/linux/console.h
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@ -79,8 +79,13 @@ int register_con_driver(const struct consw *csw, int first, int last);
int unregister_con_driver(const struct consw *csw);
int take_over_console(const struct consw *sw, int first, int last, int deflt);
void give_up_console(const struct consw *sw);
#ifdef CONFIG_HW_CONSOLE
int con_debug_enter(struct vc_data *vc);
int con_debug_leave(void);
#else
#define con_debug_enter(vc) (0)
#define con_debug_leave() (0)
#endif
/* scroll */
#define SM_UP (1)