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ipwireless: Constify buffer variables

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ipwireless: Constify buffer variables

Signed-off-by: David Sterba <dsterba@suse.cz>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
This commit is contained in:
David Sterba 2008-07-28 16:53:11 +02:00 committed by Linus Torvalds
parent 93110f698f
commit ff3e990e61
3 changed files with 16 additions and 14 deletions
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26
drivers/char/pcmcia/ipwireless/hardware.c
View File

@ -30,11 +30,11 @@
static void ipw_send_setup_packet(struct ipw_hardware *hw); static void ipw_send_setup_packet(struct ipw_hardware *hw);
static void handle_received_SETUP_packet(struct ipw_hardware *ipw, static void handle_received_SETUP_packet(struct ipw_hardware *ipw,
unsigned int address, unsigned int address,
unsigned char *data, int len, const unsigned char *data, int len,
int is_last); int is_last);
static void ipwireless_setup_timer(unsigned long data); static void ipwireless_setup_timer(unsigned long data);
static void handle_received_CTRL_packet(struct ipw_hardware *hw, static void handle_received_CTRL_packet(struct ipw_hardware *hw,
unsigned int channel_idx, unsigned char *data, int len); unsigned int channel_idx, const unsigned char *data, int len);
/*#define TIMING_DIAGNOSTICS*/ /*#define TIMING_DIAGNOSTICS*/
@ -615,8 +615,10 @@ static void pool_free(struct ipw_hardware *hw, struct ipw_rx_packet *packet)
} }
static void queue_received_packet(struct ipw_hardware *hw, static void queue_received_packet(struct ipw_hardware *hw,
unsigned int protocol, unsigned int address, unsigned int protocol,
unsigned char *data, int length, int is_last) unsigned int address,
const unsigned char *data, int length,
int is_last)
{ {
unsigned int channel_idx = address - 1; unsigned int channel_idx = address - 1;
struct ipw_rx_packet *packet = NULL; struct ipw_rx_packet *packet = NULL;
@ -760,10 +762,10 @@ static void ipw_receive_data_work(struct work_struct *work_rx)
static void handle_received_CTRL_packet(struct ipw_hardware *hw, static void handle_received_CTRL_packet(struct ipw_hardware *hw,
unsigned int channel_idx, unsigned int channel_idx,
unsigned char *data, int len) const unsigned char *data, int len)
{ {
struct ipw_control_packet_body *body = const struct ipw_control_packet_body *body =
(struct ipw_control_packet_body *) data; (const struct ipw_control_packet_body *) data;
unsigned int changed_mask; unsigned int changed_mask;
if (len != sizeof(struct ipw_control_packet_body)) { if (len != sizeof(struct ipw_control_packet_body)) {
@ -805,13 +807,13 @@ static void handle_received_CTRL_packet(struct ipw_hardware *hw,
} }
static void handle_received_packet(struct ipw_hardware *hw, static void handle_received_packet(struct ipw_hardware *hw,
union nl_packet *packet, const union nl_packet *packet,
unsigned short len) unsigned short len)
{ {
unsigned int protocol = packet->hdr.protocol; unsigned int protocol = packet->hdr.protocol;
unsigned int address = packet->hdr.address; unsigned int address = packet->hdr.address;
unsigned int header_length; unsigned int header_length;
unsigned char *data; const unsigned char *data;
unsigned int data_len; unsigned int data_len;
int is_last = packet->hdr.packet_rank & NL_LAST_PACKET; int is_last = packet->hdr.packet_rank & NL_LAST_PACKET;
@ -1288,7 +1290,7 @@ static void *alloc_ctrl_packet(int header_size,
} }
int ipwireless_send_packet(struct ipw_hardware *hw, unsigned int channel_idx, int ipwireless_send_packet(struct ipw_hardware *hw, unsigned int channel_idx,
unsigned char *data, unsigned int length, const unsigned char *data, unsigned int length,
void (*callback) (void *cb, unsigned int length), void (*callback) (void *cb, unsigned int length),
void *callback_data) void *callback_data)
{ {
@ -1522,10 +1524,10 @@ static void ipw_send_setup_packet(struct ipw_hardware *hw)
static void handle_received_SETUP_packet(struct ipw_hardware *hw, static void handle_received_SETUP_packet(struct ipw_hardware *hw,
unsigned int address, unsigned int address,
unsigned char *data, int len, const unsigned char *data, int len,
int is_last) int is_last)
{ {
union ipw_setup_rx_msg *rx_msg = (union ipw_setup_rx_msg *) data; const union ipw_setup_rx_msg *rx_msg = (const union ipw_setup_rx_msg *) data;
if (address != ADDR_SETUP_PROT) { if (address != ADDR_SETUP_PROT) {
printk(KERN_INFO IPWIRELESS_PCCARD_NAME printk(KERN_INFO IPWIRELESS_PCCARD_NAME

2
drivers/char/pcmcia/ipwireless/hardware.h
View File

@ -41,7 +41,7 @@ int ipwireless_set_RTS(struct ipw_hardware *hw, unsigned int channel_idx,
int state); int state);
int ipwireless_send_packet(struct ipw_hardware *hw, int ipwireless_send_packet(struct ipw_hardware *hw,
unsigned int channel_idx, unsigned int channel_idx,
unsigned char *data, const unsigned char *data,
unsigned int length, unsigned int length,
void (*packet_sent_callback) (void *cb, void (*packet_sent_callback) (void *cb,
unsigned int length), unsigned int length),

2
drivers/char/pcmcia/ipwireless/tty.c
View File

@ -259,7 +259,7 @@ static int ipw_write(struct tty_struct *linux_tty,
} }
ret = ipwireless_send_packet(tty->hardware, IPW_CHANNEL_RAS, ret = ipwireless_send_packet(tty->hardware, IPW_CHANNEL_RAS,
(unsigned char *) buf, count, buf, count,
ipw_write_packet_sent_callback, tty); ipw_write_packet_sent_callback, tty);
if (ret == -1) { if (ret == -1) {
mutex_unlock(&tty->ipw_tty_mutex); mutex_unlock(&tty->ipw_tty_mutex);