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| author | Peter Hurley <peter@hurleysoftware.com> | 2016-01-11 07:40:54 +0100 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2016-01-28 00:01:44 +0100 |
| commit | fdfb719e93b55a50f90da2059dc450e7c0c48e8f (patch) | |
| tree | 5317736293b5c7c16673df42d4542b78a70831aa /drivers/tty/tty_io.c | |
| parent | NFC: nci: Remove dead code (diff) | |
| download | linux-fdfb719e93b55a50f90da2059dc450e7c0c48e8f.tar.xz linux-fdfb719e93b55a50f90da2059dc450e7c0c48e8f.zip | |
tty: Remove chars_in_buffer() line discipline method
The chars_in_buffer() line discipline method serves no functional
purpose, other than as a (dubious) debugging aid for mostly bit-rotting
drivers. Despite being documented as an optional method, every caller
is unconditionally executed (although conditionally compiled).
Furthermore, direct tty->ldisc access without an ldisc ref is unsafe.
Lastly, N_TTY's chars_in_buffer() has warned of removal since 3.12.
Signed-off-by: Peter Hurley <peter@hurleysoftware.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'drivers/tty/tty_io.c')
0 files changed, 0 insertions, 0 deletions