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Message-ID: <87vdssu2i7.fsf@macbook.be.48ers.dk> Date: Tue, 06 Jan 2009 11:56:16 +0100 From: Peter Korsgaard <jacmet@...site.dk> To: David Brownell <david-b@...bell.net> Cc: Wu Fengguang <wfg@...ux.intel.com>, netdev@...r.kernel.org Subject: Re: [PATCH] dm9601: handle corrupt mac address >>>>> "David" == David Brownell <david-b@...bell.net> writes: David> On Tuesday 06 January 2009, Peter Korsgaard wrote: >> So what happens if you plug in 2 devices without an EEPROM? Do they >> get the same MAC address? That seems broken. David> What happens when you unplug one then re-plug it? Maybe David> someone trips over the USB cable, or it gets an electrical David> glitch that evalutes to disconnect/reconnect... It gets David> the same address again. Not particularly broken. David> Note that Ethernet was *designed* around using a single David> address per host ... I still have XNS docs sitting around David> somewhere, that was a fairly significant thing. One of the David> original reasons Ethernet adapter addresses could change David> was to make sure that all Ethernet interfaces on a host David> would use the same address. David> That said ... if it bothers you, that's easy to change David> in userspace. This code has worked this way for around David> nine years now; I don't recall any previous complaints. Ok, I don't feel particular strongly about it, just found it odd. -- Bye, Peter Korsgaard -- To unsubscribe from this list: send the line "unsubscribe netdev" in the body of a message to majordomo@...r.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html
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