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

From: D. Starke
Date: Mon Aug 22 2022 - 03:24:39 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.

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

diff --git a/drivers/tty/n_gsm.c b/drivers/tty/n_gsm.c
index 5bf09d129357..ed399d57b197 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
@@ -3748,7 +3751,7 @@ 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