This is a note to let you know that I've just added the patch titled

tty: provide tty_name() even without CONFIG_TTY

to the 4.4-stable tree which can be found at: http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git%3Ba=su...

The filename of the patch is: tty-provide-tty_name-even-without-config_tty.patch and it can be found in the queue-4.4 subdirectory.

If you, or anyone else, feels it should not be added to the stable tree, please let stable@vger.kernel.org know about it.

From 188e3c5cd2b672620291e64a21f1598fe91e40b6 Mon Sep 17 00:00:00 2001

From: Arnd Bergmann arnd@arndb.de Date: Wed, 27 Apr 2016 11:56:04 +0200 Subject: tty: provide tty_name() even without CONFIG_TTY

From: Arnd Bergmann arnd@arndb.de

commit 188e3c5cd2b672620291e64a21f1598fe91e40b6 upstream.

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 [natechancellor: tty_paranoia_check still exists] Signed-off-by: Nathan Chancellor natechancellor@gmail.com Signed-off-by: Greg Kroah-Hartman gregkh@linuxfoundation.org --- include/linux/tty.h | 4 +++- 1 file changed, 3 insertions(+), 1 deletion(-)

--- a/include/linux/tty.h +++ b/include/linux/tty.h @@ -372,6 +372,7 @@ extern void proc_clear_tty(struct task_s 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) { } @@ -392,6 +393,8 @@ static inline struct tty_struct *get_cur /* 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 void tty_write_flush(struct tty_struct *); @@ -420,7 +423,6 @@ static inline struct tty_struct *tty_kre

extern int tty_paranoia_check(struct tty_struct *tty, struct inode *inode, const char *routine); -extern const char *tty_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); extern int tty_check_change(struct tty_struct *tty);

Patches currently in stable-queue which might be from arnd@arndb.de are

queue-4.4/fs-compat-remove-warning-from-compatible_ioctl.patch queue-4.4/tty-provide-tty_name-even-without-config_tty.patch