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| author | Jiri Slaby <jslaby@suse.cz> | 2020-02-19 09:49:42 +0100 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2020-02-19 12:46:47 +0100 |
| commit | e1785996f4c659f24e93aea6632cb565e5924bf5 (patch) | |
| tree | b4323f990aa041f6349604c3d1c7da2c0906b847 /drivers/tty/n_gsm.c | |
| parent | n_gsm: introduce enum gsm_dlci_state (diff) | |
| download | linux-e1785996f4c659f24e93aea6632cb565e5924bf5.tar.xz linux-e1785996f4c659f24e93aea6632cb565e5924bf5.zip | |
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 <jslaby@suse.cz>
Link: https://lore.kernel.org/r/20200219084949.28074-3-jslaby@suse.cz
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'drivers/tty/n_gsm.c')
| -rw-r--r-- | drivers/tty/n_gsm.c | 9 |
1 files 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; |