Re: Tiny error in printk output for clocksource : a3:<6>Time:acpi_pm clocksource has been installed.

From: Joe Perches
Date: Thu Sep 28 2006 - 12:09:20 EST

On Thu, 2006-09-28 at 12:56 +0200, Denis Vlasenko wrote:
> \#define MACSTR "%02X:%02X:%02X:%02X:%02X:%02X"
> #define MAC(bytevector) \
> ((unsigned char *)bytevector)[0], \
> ((unsigned char *)bytevector)[1], \
> ((unsigned char *)bytevector)[2], \
> ((unsigned char *)bytevector)[3], \
> ((unsigned char *)bytevector)[4], \
> ((unsigned char *)bytevector)[5]

This is similar to the 802.11 way.
802.11 uses MAC_FMT and MAC_ARG.
I think a common style is preferable.

It's fine, but it increases the size of kernel image
by up to ~100K. Using a common function, a stack
automatic and "%s" in the printk decreases the size
of the kernel.

Strictly, not all MAC addresses are 6 byte.

Maybe all the Ethernet/TR addresses should use the
IEEE EUI48 designation? That feels a bit like the
KiB/KB distinction, but it is technically correct.

Would a patch with an DEV6_ADDR->EUI48 substitution
be acceptable?

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