diff options
| -rw-r--r-- | drivers/scsi/qla4xxx/ql4_os.c | 14 | ||||
| -rw-r--r-- | include/linux/if_ether.h | 8 | ||||
| -rw-r--r-- | net/core/net-sysfs.c | 15 | ||||
| -rw-r--r-- | net/ethernet/eth.c | 30 |
4 files changed, 35 insertions, 32 deletions
diff --git a/drivers/scsi/qla4xxx/ql4_os.c b/drivers/scsi/qla4xxx/ql4_os.c index f55b9f7d939..d3f86646cb0 100644 --- a/drivers/scsi/qla4xxx/ql4_os.c +++ b/drivers/scsi/qla4xxx/ql4_os.c @@ -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], diff --git a/include/linux/if_ether.h b/include/linux/if_ether.h index cc002cbbdc2..7a1e011b8a2 100644 --- a/include/linux/if_ether.h +++ b/include/linux/if_ether.h @@ -124,12 +124,14 @@ int eth_header_parse(const struct sk_buff *skb, unsigned char *haddr); extern struct ctl_table ether_table[]; #endif +extern ssize_t sysfs_format_mac(char *buf, const unsigned char *addr, int len); + /* * Display a 6 byte device address (MAC) in a readable format. */ -#define MAC_FMT "%02x:%02x:%02x:%02x:%02x:%02x" -extern char *print_mac(char *buf, const u8 *addr); -#define DECLARE_MAC_BUF(var) char var[18] __maybe_unused +extern char *print_mac(char *buf, const unsigned char *addr); +#define MAC_BUF_SIZE 18 +#define DECLARE_MAC_BUF(var) char var[MAC_BUF_SIZE] __maybe_unused #endif diff --git a/net/core/net-sysfs.c b/net/core/net-sysfs.c index e41f4b9d2e7..7635d3f7272 100644 --- a/net/core/net-sysfs.c +++ b/net/core/net-sysfs.c @@ -95,17 +95,6 @@ NETDEVICE_SHOW(type, fmt_dec); NETDEVICE_SHOW(link_mode, fmt_dec); /* use same locking rules as GIFHWADDR ioctl's */ -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 ssize_t show_address(struct device *dev, struct device_attribute *attr, char *buf) { @@ -114,7 +103,7 @@ static ssize_t show_address(struct device *dev, struct device_attribute *attr, read_lock(&dev_base_lock); if (dev_isalive(net)) - ret = format_addr(buf, net->dev_addr, net->addr_len); + ret = sysfs_format_mac(buf, net->dev_addr, net->addr_len); read_unlock(&dev_base_lock); return ret; } @@ -124,7 +113,7 @@ static ssize_t show_broadcast(struct device *dev, { struct net_device *net = to_net_dev(dev); if (dev_isalive(net)) - return format_addr(buf, net->broadcast, net->addr_len); + return sysfs_format_mac(buf, net->broadcast, net->addr_len); return -EINVAL; } diff --git a/net/ethernet/eth.c b/net/ethernet/eth.c index 6b2e454ae31..a7b417523e9 100644 --- a/net/ethernet/eth.c +++ b/net/ethernet/eth.c @@ -359,10 +359,34 @@ struct net_device *alloc_etherdev_mq(int sizeof_priv, unsigned int queue_count) } EXPORT_SYMBOL(alloc_etherdev_mq); -char *print_mac(char *buf, const u8 *addr) +static size_t _format_mac_addr(char *buf, int buflen, + const unsigned char *addr, int len) { - sprintf(buf, MAC_FMT, - addr[0], addr[1], addr[2], addr[3], addr[4], addr[5]); + int i; + char *cp = buf; + + for (i = 0; i < len; i++) { + cp += scnprintf(cp, buflen - (cp - buf), "%02x", addr[i]); + if (i == len - 1) + break; + cp += strlcpy(cp, ":", buflen - (cp - buf)); + } + return cp - buf; +} + +ssize_t sysfs_format_mac(char *buf, const unsigned char *addr, int len) +{ + size_t l; + + l = _format_mac_addr(buf, PAGE_SIZE, addr, len); + l += strlcpy(buf + l, "\n", PAGE_SIZE - l); + return ((ssize_t) l); +} +EXPORT_SYMBOL(sysfs_format_mac); + +char *print_mac(char *buf, const unsigned char *addr) +{ + _format_mac_addr(buf, MAC_BUF_SIZE, addr, ETH_ALEN); return buf; } EXPORT_SYMBOL(print_mac); |