printk: add %pM format specifier for MAC addresses
Add format specifiers for printing out six colon-separated bytes: MAC addresses (%pM): xx:xx:xx:xx:xx:xx %#pM is also supported and omits the colon separators. Signed-off-by: NHarvey Harrison <harvey.harrison@gmail.com> Signed-off-by: NDavid S. Miller <davem@davemloft.net>
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