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-rw-r--r--drivers/tty/n_gsm.c24
1 files changed, 12 insertions, 12 deletions
diff --git a/drivers/tty/n_gsm.c b/drivers/tty/n_gsm.c
index 6c70640c4ef0..d9662848a297 100644
--- a/drivers/tty/n_gsm.c
+++ b/drivers/tty/n_gsm.c
@@ -143,8 +143,8 @@ struct gsm_dlci {
struct sk_buff *skb; /* Frame being sent */
struct sk_buff_head skb_list; /* Queued frames */
/* Data handling callback */
- void (*data)(struct gsm_dlci *dlci, u8 *data, int len);
- void (*prev_data)(struct gsm_dlci *dlci, u8 *data, int len);
+ void (*data)(struct gsm_dlci *dlci, const u8 *data, int len);
+ void (*prev_data)(struct gsm_dlci *dlci, const u8 *data, int len);
struct net_device *net; /* network interface, if created */
};
@@ -988,7 +988,7 @@ static void gsm_dlci_data_kick(struct gsm_dlci *dlci)
* Encode up and queue a UI/UIH frame containing our response.
*/
-static void gsm_control_reply(struct gsm_mux *gsm, int cmd, u8 *data,
+static void gsm_control_reply(struct gsm_mux *gsm, int cmd, const u8 *data,
int dlen)
{
struct gsm_msg *msg;
@@ -1073,14 +1073,14 @@ static void gsm_process_modem(struct tty_struct *tty, struct gsm_dlci *dlci,
* and if need be stuff a break message down the tty.
*/
-static void gsm_control_modem(struct gsm_mux *gsm, u8 *data, int clen)
+static void gsm_control_modem(struct gsm_mux *gsm, const u8 *data, int clen)
{
unsigned int addr = 0;
unsigned int modem = 0;
unsigned int brk = 0;
struct gsm_dlci *dlci;
int len = clen;
- u8 *dp = data;
+ const u8 *dp = data;
struct tty_struct *tty;
while (gsm_read_ea(&addr, *dp++) == 0) {
@@ -1134,13 +1134,13 @@ static void gsm_control_modem(struct gsm_mux *gsm, u8 *data, int clen)
* this into the uplink tty if present
*/
-static void gsm_control_rls(struct gsm_mux *gsm, u8 *data, int clen)
+static void gsm_control_rls(struct gsm_mux *gsm, const u8 *data, int clen)
{
struct tty_port *port;
unsigned int addr = 0;
u8 bits;
int len = clen;
- u8 *dp = data;
+ const u8 *dp = data;
while (gsm_read_ea(&addr, *dp++) == 0) {
len--;
@@ -1189,7 +1189,7 @@ static void gsm_dlci_begin_close(struct gsm_dlci *dlci);
*/
static void gsm_control_message(struct gsm_mux *gsm, unsigned int command,
- u8 *data, int clen)
+ const u8 *data, int clen)
{
u8 buf[1];
unsigned long flags;
@@ -1261,7 +1261,7 @@ static void gsm_control_message(struct gsm_mux *gsm, unsigned int command,
*/
static void gsm_control_response(struct gsm_mux *gsm, unsigned int command,
- u8 *data, int clen)
+ const u8 *data, int clen)
{
struct gsm_control *ctrl;
unsigned long flags;
@@ -1553,7 +1553,7 @@ static void gsm_dlci_begin_close(struct gsm_dlci *dlci)
* open we shovel the bits down it, if not we drop them.
*/
-static void gsm_dlci_data(struct gsm_dlci *dlci, u8 *data, int clen)
+static void gsm_dlci_data(struct gsm_dlci *dlci, const u8 *data, int clen)
{
/* krefs .. */
struct tty_port *port = &dlci->port;
@@ -1603,7 +1603,7 @@ static void gsm_dlci_data(struct gsm_dlci *dlci, u8 *data, int clen)
* and we divide up the work accordingly.
*/
-static void gsm_dlci_command(struct gsm_dlci *dlci, u8 *data, int len)
+static void gsm_dlci_command(struct gsm_dlci *dlci, const u8 *data, int len)
{
/* See what command is involved */
unsigned int command = 0;
@@ -2702,7 +2702,7 @@ static void gsm_mux_net_tx_timeout(struct net_device *net)
}
static void gsm_mux_rx_netchar(struct gsm_dlci *dlci,
- unsigned char *in_buf, int size)
+ const unsigned char *in_buf, int size)
{
struct net_device *net = dlci->net;
struct sk_buff *skb;