> Only rare PCI devices are shareable among multiple drivers. Really. Let me see AGP & EDAC Serial/Parallel combo ports MPIIX CS5520 Lots of I2C bus stuff VGA v 3D There are quite a few, and some are already quite fun enough with our pci struct model. > sata_* at least intentionally used pci_request_regions() because it is > obvious from the hardware spec that multiple regions accessed by > multiple drivers is highly unlikely, without the driver being > specifically coded to support such sharing. Such sharing code is far > beyond simple resource reservation, to avoid stepping on toes when there > is a single MMIO region and set of interrupt clearing registers. > > So reading your email it sounds like there are valid cases for both > configurations. > > Its a design choice either way, not a bug either way. It is a flaw: devres that assumes it should grab all resources is unusable for some other drivers - it is no longer generic and that makes it far less useful. I've got no problem with the idea of a devres way to say "and I want it all, mine mine mine" but that should not be the only behaviour. Alan -- To unsubscribe from this list: send the line "unsubscribe linux-ide" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
