On Tue, May 24, 2016 at 08:29:41PM +0000, Hefty, Sean wrote: > > Let's assume that you are planning to provide block of 20 ioctls per > > device. Right now, there are 10 (or 8 if we count driver families) drivers in > > drivers/infiniband/hw/ + 1 is coming (HSI) + uverbs (approximately 40) > > => 8 * 20 + 20 + 40 = 220 ioctls => we already in shortage without room > > to expansion. > > Ioctl commands are naturally scoped per open file. Unless the > opened file supports ioctls directed to every piece of hardware, I > don't see why there's an obsession with command space. The kernel standard is to have ioctl numbers be globally unique, even though technically you are right and they are scoped to a file. Jason -- To unsubscribe from this list: send the line "unsubscribe linux-rdma" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
