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authorArnd Bergmann <arnd@arndb.de>2016-04-27 11:56:04 +0200
committerPaul Moore <paul@paul-moore.com>2016-04-27 17:12:58 -0400
commit188e3c5cd2b672620291e64a21f1598fe91e40b6 (patch)
treed8d48fbd192628dc8a9e582d4f08e7c27fc1fe2e /include/linux/tty.h
parentdb0a6fb5d97afe01fd9c47d37c6daa82d4d4001d (diff)
tty: provide tty_name() even without CONFIG_TTY
The audit subsystem just started printing the name of the tty, but that causes a build failure when CONFIG_TTY is disabled: kernel/built-in.o: In function `audit_log_task_info': memremap.c:(.text+0x5e34c): undefined reference to `tty_name' kernel/built-in.o: In function `audit_set_loginuid': memremap.c:(.text+0x63b34): undefined reference to `tty_name' This adds tty_name() to the list of functions that are provided as trivial stubs in that configuration. Signed-off-by: Arnd Bergmann <arnd@arndb.de> Fixes: db0a6fb5d97a ("audit: add tty field to LOGIN event") Signed-off-by: Paul Moore <paul@paul-moore.com>
Diffstat (limited to 'include/linux/tty.h')
-rw-r--r--include/linux/tty.h4
1 files changed, 3 insertions, 1 deletions
diff --git a/include/linux/tty.h b/include/linux/tty.h
index d9fb4b043f56..a93cce297832 100644
--- a/include/linux/tty.h
+++ b/include/linux/tty.h
@@ -371,6 +371,7 @@ extern void proc_clear_tty(struct task_struct *p);
extern struct tty_struct *get_current_tty(void);
/* tty_io.c */
extern int __init tty_init(void);
+extern const char *tty_name(const struct tty_struct *tty);
#else
static inline void console_init(void)
{ }
@@ -391,6 +392,8 @@ static inline struct tty_struct *get_current_tty(void)
/* tty_io.c */
static inline int __init tty_init(void)
{ return 0; }
+static inline const char *tty_name(const struct tty_struct *tty)
+{ return "(none)"; }
#endif
extern struct ktermios tty_std_termios;
@@ -415,7 +418,6 @@ static inline struct tty_struct *tty_kref_get(struct tty_struct *tty)
return tty;
}
-extern const char *tty_name(const struct tty_struct *tty);
extern const char *tty_driver_name(const struct tty_struct *tty);
extern void tty_wait_until_sent(struct tty_struct *tty, long timeout);
extern int __tty_check_change(struct tty_struct *tty, int sig);