On Tue, 2014-05-20 at 03:49 -0400, Robert P. J. Day wrote: > quite possibly a silly question (which has never stopped me before), > but in perusing the PCIE code in the kernel source, i was looking for > sample code to demo in a classroom setting and picked on > drivers/net/wireless/iwlwifi/pcie, which i was *assuming* was > PCIE-dependent -- specifically, i was going to demo the Advanced-N > 6235 PCIE wifi card on an intel galileo board. > > but i thought it was a bit strange that the pcie/ subdirectory there > doesn't seem to depend on PCIEPORTBUS. as a test, i deselected > PCIEPORTBUS in a configuration and did a rebuild, and the source in > the pcie/ directory was recompiled. > > am i misunderstanding the function of the kernel config variable > PCIEPORTBUS? i notice that .../iwlwifi/Makefile includes the line: > > iwlwifi-objs += pcie/drv.o pcie/rx.o pcie/tx.o pcie/trans.o > > which simply compiles those files with no regard to dependency. can > someone clarify this? thanks. The whole driver depends on CONFIG_PCI, maybe it should depend on something more PCIe specific, but that wasn't easy to sort out, and the APIs it needs aren't PCIe specific afaict. johannes -- To unsubscribe from this list: send the line "unsubscribe linux-wireless" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
