[PATCH v3 2/6] tty: n_gsm: name gsm tty device minors

From: D. Starke
Date: Wed Aug 31 2022 - 04:12:35 EST


From: Daniel Starke <daniel.starke@xxxxxxxxxxx>

Add a macro which defines the possible number of virtual devices for n_gsm
to improve code readability.

Reviewed-by: Jiri Slaby <jirislaby@xxxxxxxxxx>
Signed-off-by: Daniel Starke <daniel.starke@xxxxxxxxxxx>
---
drivers/tty/n_gsm.c | 5 ++++-
1 file changed, 4 insertions(+), 1 deletion(-)

Added reviewed-by line since v2. No other changes done.

Link: https://lore.kernel.org/all/dae848f0-6817-a281-94b3-9d2b6f84c90d@xxxxxxxxxx/

diff --git a/drivers/tty/n_gsm.c b/drivers/tty/n_gsm.c
index 3fa859a29317..813363825e54 100644
--- a/drivers/tty/n_gsm.c
+++ b/drivers/tty/n_gsm.c
@@ -164,6 +164,9 @@ struct gsm_dlci {
struct net_device *net; /* network interface, if created */
};

+/* Total number of supported devices */
+#define GSM_TTY_MINORS 256
+
/* DLCI 0, 62/63 are special or reserved see gsmtty_open */

#define NUM_DLCI 64
@@ -3749,7 +3752,7 @@ static int __init gsm_init(void)
return status;
}

- gsm_tty_driver = tty_alloc_driver(256, TTY_DRIVER_REAL_RAW |
+ gsm_tty_driver = tty_alloc_driver(GSM_TTY_MINORS, TTY_DRIVER_REAL_RAW |
TTY_DRIVER_DYNAMIC_DEV | TTY_DRIVER_HARDWARE_BREAK);
if (IS_ERR(gsm_tty_driver)) {
pr_err("gsm_init: tty allocation failed.\n");
--
2.34.1