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| author | Peter Hurley <peter@hurleysoftware.com> | 2013-06-15 10:04:21 -0400 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2013-07-23 17:02:21 -0700 |
| commit | ae56f3304107f70e26a389d845db76d6b949c114 (patch) | |
| tree | 1d3bd840840342b65ce532ca14713380c3f95ad8 /drivers/tty/n_tty.c | |
| parent | 9114fe8ccf1871f630d2c14cd60e5f455b015459 (diff) | |
| download | op-kernel-dev-ae56f3304107f70e26a389d845db76d6b949c114.zip op-kernel-dev-ae56f3304107f70e26a389d845db76d6b949c114.tar.gz | |
n_tty: Remove unused echo_overrun field
The echo_overrun field is only assigned and never tested; remove it.
Signed-off-by: Peter Hurley <peter@hurleysoftware.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'drivers/tty/n_tty.c')
| -rw-r--r-- | drivers/tty/n_tty.c | 8 |
1 files changed, 1 insertions, 7 deletions
diff --git a/drivers/tty/n_tty.c b/drivers/tty/n_tty.c index a69470e..c1c721f 100644 --- a/drivers/tty/n_tty.c +++ b/drivers/tty/n_tty.c @@ -96,7 +96,6 @@ struct n_tty_data { /* must hold exclusive termios_rwsem to reset these */ unsigned char lnext:1, erasing:1, raw:1, real_raw:1, icanon:1; - unsigned char echo_overrun:1; /* shared by producer and consumer */ char *read_buf; @@ -326,7 +325,7 @@ static void reset_buffer_flags(struct n_tty_data *ldata) ldata->read_head = ldata->canon_head = ldata->read_tail = 0; mutex_lock(&ldata->echo_lock); - ldata->echo_pos = ldata->echo_cnt = ldata->echo_overrun = 0; + ldata->echo_pos = ldata->echo_cnt = 0; mutex_unlock(&ldata->echo_lock); ldata->erasing = 0; @@ -782,14 +781,11 @@ static void process_echoes(struct tty_struct *tty) if (nr == 0) { ldata->echo_pos = 0; ldata->echo_cnt = 0; - ldata->echo_overrun = 0; } else { int num_processed = ldata->echo_cnt - nr; ldata->echo_pos += num_processed; ldata->echo_pos &= N_TTY_BUF_SIZE - 1; ldata->echo_cnt = nr; - if (num_processed > 0) - ldata->echo_overrun = 0; } mutex_unlock(&ldata->echo_lock); @@ -835,8 +831,6 @@ static void add_echo_byte(unsigned char c, struct n_tty_data *ldata) ldata->echo_pos++; } ldata->echo_pos &= N_TTY_BUF_SIZE - 1; - - ldata->echo_overrun = 1; } else { new_byte_pos = ldata->echo_pos + ldata->echo_cnt; new_byte_pos &= N_TTY_BUF_SIZE - 1; |
