On Thu, Jun 01, 2023 at 05:09:52PM +0200, Marek Szyprowski wrote: > On 01.06.2023 16:21, Greg Kroah-Hartman wrote: > > On Thu, Jun 01, 2023 at 05:14:44PM +0300, Tony Lindgren wrote: > >> If a physical serial port device driver uses arch_initcall() we fail to > >> probe the serial_base_bus devices and the serial port tx fails. This is > >> because as serial_base_bus uses module_initcall(). > >> > >> Let's fix the issue by changing serial_base_bus to use arch_initcall(). > > This will only work if the linking order is such that this will always > > come before the drivers. Is that the case here? > > Yes, serial_base_bus is linked as a second object, just after the > serial_core. Device drivers come later. Oh good, I guess it wouldn't work at all as the serial_core is needed by all of those drivers first too, so this should work, thanks for checking. greg k-h
