On Wed, 2015-07-29 at 08:00 -0700, James Bottomley wrote: > > > Really, no, there aren't. Firmware is an operating system independent > blob which runs on a separate processor without modification for > Windows, Linux, Solaris or any other OS. As such, there's no way it can > be considered a derived work of (or even based on) the Linux Kernel. > This... I don't ever think anyone would claim that the firmware is a derived work of the Linux kernel. Or that it is based on the Linux kernel. That's a straw man. But it's also not really necessary for the point you were making, which might as well start here: > ...it falls under the aggregation terms of clause 2 of the GPL: > > In addition, mere aggregation of another work not based on the > Program with the Program (or with a work based on the Program) > on a volume of a storage or distribution medium does not bring > the other work under the scope of this License. > > So it definitely doesn't have to be distributed under GPL and can be > aggregated with GPL components like Linux. I understand that opinion. But the whole 'mere aggregation on a volume of a storage or distribution medium' thing is fairly ambiguous, and there is plenty of scope for interpretation. Certainly it seems intended to cover at *least* the case of things like the old "shareware CDs", allowing GPL'd software to be included on those as well as non-GPL'd software. Those are collective works, and without the exception *would* have been prohibited by the GPL. (Again, just in terms of what you are permitted to do with the GPL'd thing, without ever making the bizarre claim that the non-GPL'd parts are in any way derivative of or based on the GPL'd parts.) It's possible to interpret that same clause as negating the *entirety* of the paragraphs that precede it — permitting *any* combination of GPL and non-GPL works as long as you call it 'aggregation' — and ignoring the ill-defined word 'mere' that precedes it, and the context 'on a volume of a storage or distribution medium' that follows. One could then argue that even linking a proprietary piece of native code into a GPL'd work and calling it directly is permitted — it's still merely aggregation. Obviously, that doesn't seem like a *reasonable* interpretation, as it would clearly make the licence inconsistent with itself. So I wouldn't bet on a court backing that interpretation — but then again, courts have done stupider things. Then there's a whole spectrum of other possibilities, between the minimal 'allow GPL'd stuff to appear on shareware CDs' to the excessive 'allow anything as long as you call it aggregation' interpretations that I have outlined. Your viewpoint, while a valid opinion, falls closer to the latter end of that spectrum than mine does. The fact remains that there is scope for reasonable people to disagree, that *none* of us are right until it's tested, and there *is* a reason for cautious people to err on the side of caution. You make a point about Linux-specific firmware being a 'greyer area', which is true precisely *because* of the ambiguity here. That, along with many other factors, would affect a court's perception of whether the the two parts are indeed 'merely aggregated on a volume of a storage or distribution medium', or whether they are tied together as a coherent 'whole which is based in part on the [kernel]'. I'm not going to tell you that your opinion on the 'mere aggregation on a volume of a storage or distribution medium' thing is wrong, although I happen to disagree with it. But I *am* telling you that you are wrong to claim that there is *no* risk. And that Greg is similarly wrong to make his absolute 'not true at all' claim. -- dwmw2