Adrian Bunk wrote: > These are Linux specific operations. > > Without an _GPL you are in the grey area where courts have to decide > whether a module using this would be a derived work according to > copyright law in $country_of_the_court and therefore has to be GPL. > > With the _GPL, everything is clear without any lawyers involved. > Hardly. The _GPL is a hint as to the intent of the author, but it is no more than a hint. My intent here (and I think the intent of the other authors) is not to cause breakage of things which currently work, so the _GPL is not appropriate for that reason. Paravirt_ops is a restatement of many interfaces which already exist in Linux in a non-_GPL form, so making the structure _GPL is effectively relicensing them. J