On Thu, 28 Mar 2013, Arnd Bergmann wrote: > The ehci_shutdown function is used by the platform specific ehci backends > for at91, tegra and ps3. In order to turn any of these into separate > modules, we need to make this function globally visible and export it. Actually, I think this is not necessary. Instead those three glue files ought to be changed. They should not need to call ehci_shutdown() directly. The references to ehci_shutdown() in ehci-atmel.c and ehci-ps3.c seem totally unnecesary. That routine does a hard shutdown -- but the calls are immediately followed by usb_remove_hcd(), which calls ehci_stop(), which does an orderly shutdown followed by a reset. While it certainly would be good to check with the authors of these drivers, it would be surprising if removing those calls led to any trouble. The reference in ehci-tegra.c is there only so that tegra_ehci_shutdown() can call tegra_ehci_power_up() before doing its real work. Instead, tegra_ehci_power_up() should be called by tegra_ehci_hcd_shutdown(). Then there would be no need to have the tegra_ehci_shutdown() routine at all. Alan Stern -- To unsubscribe from this list: send the line "unsubscribe linux-usb" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
