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[ETH]: Combine format_addr() with print_mac().

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print_mac() used many most net drivers and format_addr() used by
net-sysfs.c are very similar and they can be intergrated.

format_addr() is also identically redefined in the qla4xxx iscsi
driver.

Export a new function sysfs_format_mac() to be used by net-sysfs,
qla4xxx and others in the future.  Both print_mac() and
sysfs_format_mac() call _format_mac_addr() to do the formatting.

Changed print_mac() to use unsigned char * to be consistent with
net_device struct's dev_addr.  Added buffer length overrun checking
as suggested by Joe Perches.

Signed-off-by: Michael Chan <mchan@broadcom.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Michael Chan
2007-12-24 21:28:09 -08:00
committed by David S. Miller
parent 21371f768b
commit 7ffc49a6ee
4 changed files with 35 additions and 32 deletions
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14
drivers/scsi/qla4xxx/ql4_os.c
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@ -173,18 +173,6 @@ static void qla4xxx_conn_stop(struct iscsi_cls_conn *conn, int flag)
printk(KERN_ERR "iscsi: invalid stop flag %d\n", flag);
}
static ssize_t format_addr(char *buf, const unsigned char *addr, int len)
{
int i;
char *cp = buf;
for (i = 0; i < len; i++)
cp += sprintf(cp, "%02x%c", addr[i],
i == (len - 1) ? '\n' : ':');
return cp - buf;
}
static int qla4xxx_host_get_param(struct Scsi_Host *shost,
enum iscsi_host_param param, char *buf)
{
@ -193,7 +181,7 @@ static int qla4xxx_host_get_param(struct Scsi_Host *shost,
switch (param) {
case ISCSI_HOST_PARAM_HWADDRESS:
len = format_addr(buf, ha->my_mac, MAC_ADDR_LEN);
len = sysfs_format_mac(buf, ha->my_mac, MAC_ADDR_LEN);
break;
case ISCSI_HOST_PARAM_IPADDRESS:
len = sprintf(buf, "%d.%d.%d.%d\n", ha->ip_address[0],