n_tty: Rename tail to old_tail in n_tty_read()

Message ID 22b37499-ff9a-7fc1-f6e0-58411328d122@linux.intel.com
State New
Headers
Series n_tty: Rename tail to old_tail in n_tty_read() |

Commit Message

Ilpo Järvinen Nov. 11, 2022, 2:25 p.m. UTC
  The local tail variable in n_tty_read() is used for one purpose, it
keeps the old tail. Thus, rename it appropriately to improve code
readability.

Signed-off-by: Ilpo Järvinen <ilpo.jarvinen@linux.intel.com>

---
 drivers/tty/n_tty.c | 6 +++---
 1 file changed, 3 insertions(+), 3 deletions(-)
  

Comments

Jiri Slaby Nov. 14, 2022, 6:30 a.m. UTC | #1
On 11. 11. 22, 15:25, Ilpo Järvinen wrote:
> The local tail variable in n_tty_read() is used for one purpose, it
> keeps the old tail. Thus, rename it appropriately to improve code
> readability.
> 
> Signed-off-by: Ilpo Järvinen <ilpo.jarvinen@linux.intel.com>

Reviewed-by: Jiri Slaby <jirislaby@kernel.org>
  

Patch

diff --git a/drivers/tty/n_tty.c b/drivers/tty/n_tty.c
index 597019690ae6..c8f56c9b1a1c 100644
--- a/drivers/tty/n_tty.c
+++ b/drivers/tty/n_tty.c
@@ -2130,7 +2130,7 @@  static ssize_t n_tty_read(struct tty_struct *tty, struct file *file,
 	ssize_t retval = 0;
 	long timeout;
 	bool packet;
-	size_t tail;
+	size_t old_tail;
 
 	/*
 	 * Is this a continuation of a read started earler?
@@ -2193,7 +2193,7 @@  static ssize_t n_tty_read(struct tty_struct *tty, struct file *file,
 	}
 
 	packet = tty->ctrl.packet;
-	tail = ldata->read_tail;
+	old_tail = ldata->read_tail;
 
 	add_wait_queue(&tty->read_wait, &wait);
 	while (nr) {
@@ -2282,7 +2282,7 @@  static ssize_t n_tty_read(struct tty_struct *tty, struct file *file,
 		if (time)
 			timeout = time;
 	}
-	if (tail != ldata->read_tail)
+	if (old_tail != ldata->read_tail)
 		n_tty_kick_worker(tty);
 	up_read(&tty->termios_rwsem);