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. Best regards -- Marek Szyprowski, PhD Samsung R&D Institute Poland
