This n_tty_trace() is an always disabled debugging macro. It comes from
commit 32f13521ca68 ("n_tty: Line copy to user buffer in canonical
mode").
Drop it as it is dead for over a decade.
Signed-off-by: Jiri Slaby (SUSE) <jirislaby@xxxxxxxxxx>
---
drivers/tty/n_tty.c | 14 --------------
1 file changed, 14 deletions(-)
diff --git a/drivers/tty/n_tty.c b/drivers/tty/n_tty.c
index 5d172edbb03c..43ba740792d9 100644
--- a/drivers/tty/n_tty.c
+++ b/drivers/tty/n_tty.c
@@ -81,14 +81,6 @@
#define ECHO_BLOCK 256
#define ECHO_DISCARD_WATERMARK N_TTY_BUF_SIZE - (ECHO_BLOCK + 32)
-
-#undef N_TTY_TRACE
-#ifdef N_TTY_TRACE
-# define n_tty_trace(f, args...) trace_printk(f, ##args)
-#else
-# define n_tty_trace(f, args...) no_printk(f, ##args)
-#endif
-
struct n_tty_data {
/* producer-published */
size_t read_head;
@@ -2026,9 +2018,6 @@ static bool canon_copy_from_read_buf(const struct tty_struct *tty, u8 **kbp,
tail = MASK(ldata->read_tail);
size = min_t(size_t, tail + n, N_TTY_BUF_SIZE);
- n_tty_trace("%s: nr:%zu tail:%zu n:%zu size:%zu\n",
- __func__, *nr, tail, n, size);
-
eol = find_next_bit(ldata->read_flags, size, tail);
more = n - (size - tail);
if (eol == N_TTY_BUF_SIZE && more) {
@@ -2046,9 +2035,6 @@ static bool canon_copy_from_read_buf(const struct tty_struct *tty, u8 **kbp,
if (!found || read_buf(ldata, eol) != __DISABLED_CHAR)
n = c;
- n_tty_trace("%s: eol:%zu found:%d n:%zu c:%zu tail:%zu more:%zu\n",
- __func__, eol, found, n, c, tail, more);
-
tty_copy(tty, *kbp, tail, n);
*kbp += n;
*nr -= n;
--
2.48.1
