From e1785996f4c659f24e93aea6632cb565e5924bf5 Mon Sep 17 00:00:00 2001 From: Jiri Slaby Date: Wed, 19 Feb 2020 09:49:42 +0100 Subject: [PATCH] n_gsm: introduce enum gsm_dlci_mode gsm_dlci->mode is clearly an enumeration. So introduce one and use it -- compiler now checks if valid values are assigned to the field. Signed-off-by: Jiri Slaby Link: https://lore.kernel.org/r/20200219084949.28074-3-jslaby@suse.cz Signed-off-by: Greg Kroah-Hartman --- drivers/tty/n_gsm.c | 9 ++++++--- 1 file changed, 6 insertions(+), 3 deletions(-) diff --git a/drivers/tty/n_gsm.c b/drivers/tty/n_gsm.c index 1d0a140027ff..7fee5a580f21 100644 --- a/drivers/tty/n_gsm.c +++ b/drivers/tty/n_gsm.c @@ -107,6 +107,11 @@ enum gsm_dlci_state { DLCI_CLOSING, /* Sending DISC not seen UA/DM */ }; +enum gsm_dlci_mode { + DLCI_MODE_ABM, /* Normal Asynchronous Balanced Mode */ + DLCI_MODE_ADM, /* Asynchronous Disconnected Mode */ +}; + /* * Each active data link has a gsm_dlci structure associated which ties * the link layer to an optional tty (if the tty side is open). To avoid @@ -124,9 +129,7 @@ struct gsm_dlci { struct mutex mutex; /* Link layer */ - int mode; -#define DLCI_MODE_ABM 0 /* Normal Asynchronous Balanced Mode */ -#define DLCI_MODE_ADM 1 /* Asynchronous Disconnected Mode */ + enum gsm_dlci_mode mode; spinlock_t lock; /* Protects the internal state */ struct timer_list t1; /* Retransmit timer for SABM and UA */ int retries; -- 2.30.2