On Sun, Jan 31, 2021 at 09:25:33PM +0200, Andy Shevchenko wrote: > On Thursday, January 28, 2021, Mans Rullgard <mans@xxxxxxxxx> wrote: > > > On systems that do not have the traditional PC ISA serial ports, the > > 8250 driver still creates non-functional device nodes. This change > > makes only ports that actually exist (PCI, DT, ...) get device nodes. > > > > > > This is kinda ABI breakage. At least this will break x86 platforms with > HSUARTs (all modern ones) that are used in embedded systems. > > I think you would rather need an option to disable this and select it by > the platforms where it is known not to break anything. This option is behind CONFIG_EXPERT, if you set it, you know what you are doing, so that's fine. thanks, greg k-h
