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[ETHER]: Bring back MAC_FMT 

The print_mac function is not very suitable for debugging printks
in performance critical paths since without ifdefs it will always
get called. MAC_FMT can be used with pr_debug without any overhead
when debugging is disabled.

Signed-off-by: Patrick McHardy <kaber@trash.net>
Signed-off-by: David S. Miller <davem@davemloft.net>
hifive-unleashed-5.1
Patrick McHardy 2008-01-21 00:24:13 -08:00 committed by David S. Miller
parent 62f99efce6
commit a5250a3695
1 changed files with 1 additions and 0 deletions
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include/linux/if_ether.h
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@ -130,6 +130,7 @@ 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.
*/
extern char *print_mac(char *buf, const unsigned char *addr);
#define MAC_FMT "%02x:%02x:%02x:%02x:%02x:%02x"
#define MAC_BUF_SIZE 18
#define DECLARE_MAC_BUF(var) char var[MAC_BUF_SIZE] __maybe_unused