kernel/linux.git/include/linux/tty.h, branch v4.5.3

tty: Fix GPF in flush_to_ldisc(), part 2

2016-04-12T14:33:28+00:00

commit f33798deecbd59a2955f40ac0ae2bc7dff54c069 upstream. commit 9ce119f318ba ("tty: Fix GPF in flush_to_ldisc()") fixed a GPF caused by a line discipline which does not define a receive_buf() method. However, the vt driver (and speakup driver also) pushes selection data directly to the line discipline receive_buf() method via tty_ldisc_receive_buf(). Fix the same problem in tty_ldisc_receive_buf(). Signed-off-by: Peter Hurley Signed-off-by: Greg Kroah-Hartman

tty: Wait interruptibly for tty lock on reopen

2016-01-27T07:17:54+00:00

Allow a signal to interrupt the wait for a tty reopen; eg., if the tty has starting final close and is waiting for the device to drain. Signed-off-by: Peter Hurley Cc: stable # 4.4 Signed-off-by: Greg Kroah-Hartman

tty: Remove dead tty_write_flush() declaration and macro

2015-12-14T03:59:48+00:00

tty_write_flush() has no definition and the TTY_WRITE_FLUSH() macro is never invoked; remove. Signed-off-by: Peter Hurley Signed-off-by: Greg Kroah-Hartman

tty: Remove func from tty_debug() macro

2015-12-14T03:59:48+00:00

Now that tty_debug() macro uses pr_debug(), the function name can be printed when using dynamic debug; printing the function name within the format string is redundant. Remove the __func__ parameter and print specifier from the format string. Add context to messages for when the function name is not printed by dynamic debug, or when dynamic debug is not enabled. Signed-off-by: Peter Hurley Signed-off-by: Greg Kroah-Hartman

tty: Define tty_*() printk macros

2015-12-14T03:59:48+00:00

Since not all ttys are devices (eg., SysV ptys), dev_*() printk macros cannot be used. Define tty_*() printk macros that output in similar format to dev_*() macros (ie., : .....). Transform the most-trivial printk( LEVEL ...) usage to tty_*() usage. NB: The function name has been eliminated from messages with unique context, or prefixed to the format when given. Signed-off-by: Peter Hurley Signed-off-by: Greg Kroah-Hartman

tty: core: Add helper fn to deref tty driver name

2015-12-14T03:59:48+00:00

Similar to tty_name(), add tty_driver_name() helper to safely dereference tty->driver->name (otherwise return empty string). Signed-off-by: Peter Hurley Signed-off-by: Greg Kroah-Hartman

tty: Make tty_paranoia_check() file scope

2015-12-14T03:59:48+00:00

tty_paranoia_check() is only used within drivers/tty/tty_io.c; remove extern declaration in header and limit symbol to file scope. Signed-off-by: Peter Hurley Signed-off-by: Greg Kroah-Hartman

tty: Improve tty_debug() macro

2015-12-14T03:59:48+00:00

Incorporate suggestions for tty core debug macro improvements - printk(KERN_DEBUG) => pr_debug() - ##args => ##__VA_ARGS__ - remove do {} while() - output tty_name() first cc: Joe Perches Signed-off-by: Peter Hurley Signed-off-by: Greg Kroah-Hartman

tty: audit: Fix audit source

2015-11-21T00:19:54+00:00

The data to audit/record is in the 'from' buffer (ie., the input read buffer). Fixes: 72586c6061ab ("n_tty: Fix auditing support for cannonical mode") Cc: stable # 4.1+ Cc: Miloslav Trmač Signed-off-by: Peter Hurley Acked-by: Laura Abbott Signed-off-by: Greg Kroah-Hartman

tty: Abstract tty buffer work

2015-10-18T04:32:21+00:00

Introduce API functions to restart and cancel tty buffer work, rather than manipulate buffer work directly. Signed-off-by: Peter Hurley Signed-off-by: Greg Kroah-Hartman

kernel/linux.git/include/linux/tty.h, branch v4.5.3

tty: Fix GPF in flush_to_ldisc(), part 2

tty: Wait interruptibly for tty lock on reopen

tty: Remove dead tty_write_flush() declaration and macro

tty: Remove __func__ from tty_debug() macro

tty: Define tty_*() printk macros

tty: core: Add helper fn to deref tty driver name

tty: Make tty_paranoia_check() file scope

tty: Improve tty_debug() macro

tty: audit: Fix audit source

tty: Abstract tty buffer work

tty: Remove func from tty_debug() macro