diff mbox series

[03/29] tty: caif: do not use N_TTY_BUF_SIZE

Message ID 20250220111606.138045-4-jirislaby@kernel.org
State New
Headers show
Series [01/29] tty: convert "TTY Struct Flags" to an enum | expand

Commit Message

Jiri Slaby (SUSE) Feb. 20, 2025, 11:15 a.m. UTC
N_TTY_BUF_SIZE -- as the name suggests -- is the N_TTY's buffer size.
There is no reason to couple that to caif's tty->receive_room. Use 4096
directly -- even though, it should be some sort of "SKB_MAX_ALLOC" or
alike. But definitely not N_TTY_BUF_SIZE.

N_TTY_BUF_SIZE is private and will be moved to n_tty.c later.

Signed-off-by: Jiri Slaby (SUSE) <jirislaby@kernel.org>
Cc: Andrew Lunn <andrew+netdev@lunn.ch>
Cc: "David S. Miller" <davem@davemloft.net>
Cc: Eric Dumazet <edumazet@google.com>
Cc: Jakub Kicinski <kuba@kernel.org>
Cc: Paolo Abeni <pabeni@redhat.com>
Cc: netdev@vger.kernel.org
---
 drivers/net/caif/caif_serial.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

Comments

Jakub Kicinski Feb. 20, 2025, 2:27 p.m. UTC | #1
On Thu, 20 Feb 2025 12:15:40 +0100 Jiri Slaby (SUSE) wrote:
> N_TTY_BUF_SIZE -- as the name suggests -- is the N_TTY's buffer size.
> There is no reason to couple that to caif's tty->receive_room. Use 4096
> directly -- even though, it should be some sort of "SKB_MAX_ALLOC" or
> alike. But definitely not N_TTY_BUF_SIZE.
> 
> N_TTY_BUF_SIZE is private and will be moved to n_tty.c later.

Acked-by: Jakub Kicinski <kuba@kernel.org>
diff mbox series

Patch

diff --git a/drivers/net/caif/caif_serial.c b/drivers/net/caif/caif_serial.c
index ed3a589def6b..e7d1b9301fde 100644
--- a/drivers/net/caif/caif_serial.c
+++ b/drivers/net/caif/caif_serial.c
@@ -344,7 +344,7 @@  static int ldisc_open(struct tty_struct *tty)
 	ser->tty = tty_kref_get(tty);
 	ser->dev = dev;
 	debugfs_init(ser, tty);
-	tty->receive_room = N_TTY_BUF_SIZE;
+	tty->receive_room = 4096;
 	tty->disc_data = ser;
 	set_bit(TTY_DO_WRITE_WAKEUP, &tty->flags);
 	rtnl_lock();