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-rw-r--r--include/linux/if_ether.h8
1 files changed, 8 insertions, 0 deletions
diff --git a/include/linux/if_ether.h b/include/linux/if_ether.h
index 3213f6f..0e791e2c 100644
--- a/include/linux/if_ether.h
+++ b/include/linux/if_ether.h
@@ -120,6 +120,14 @@ static inline struct ethhdr *eth_hdr(const struct sk_buff *skb)
#ifdef CONFIG_SYSCTL
extern struct ctl_table ether_table[];
#endif
+
+/*
+ * 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
+
#endif
#endif /* _LINUX_IF_ETHER_H */
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