On Fri, 20 Apr 2012 13:34:05 -0400 Mike Snitzer <snitzer@xxxxxxxxxx> wrote: > Allow a proprietary non-GPL multipath driver, like EMC PowerPath, to > detach a scsi_dh using scsi_dh_detach. That I doubt somehow. The GPL covers *all* derivative works. EXPORT_SYMBOL doesn't magically make code non-derivative. If you need to modify the kernel to make your driver work *and* you want to claim it is not derivative then I hope there are good lawyers involved 8-) The kernel is GPL, all derived works of a GPL codebase are required to be GPL. There is no magic rule about modules. I've stated that repeatedly for anything containing a line of code I own. GregKH has made it very clear for his code, and so it goes on. > End result is Linux and PowerPath can coexist without compromising > Linux's default handling of multipath LUNs. So your specific purpose seems to me to be to enable a third party piece of non-free code to hook into a piece of GPL code that it needs (which to me implies it is derivative if it does). There is an offence of "conspiracy to commit copyright infringement" so merely grinning and saying its for a third party doesn't let your company off the hook either. You should probably forward it to your legal teams before taking any other action. Deleting it won't make it go away. It's up to them to decide if they think they can argue properly that the work is not derivative. I shall be most intrigued to see anyone make that argument, but hey I'm not a lawyer. I'm dying to see anyone make the moral argument for it too. Alan -- To unsubscribe from this list: send the line "unsubscribe linux-scsi" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
