On Tue, 3 Oct 2017, Christoph Hellwig wrote: > On Sun, Oct 01, 2017 at 06:27:11PM -0400, Nicolas Pitre wrote: > > If you prefer, the physical address could be specified with a Kconfig > > symbol just like the kernel link address. Personally I think it is best > > to keep it along with the other root mount args. But going all the way > > with a dynamic driver binding interface and a dummy intermediate name is > > like using a sledge hammer to kill an ant: it will work of course, but > > given the context it is prone to errors due to the added manipulations > > mentioned previously ... and a tad overkill. > > As soon as a kernel enables CRAMFS_PHYSMEM this mount option is > available, so you don't just need to think of your use case. What other use cases do you have in mind? > The normal way for doings this would be to specify it in the device > tree. And specify it how? Creating a pseudo device and passing that instead of the actual physical address? What is the advantage? And what about targets that don't use DT? Yes, there are still quite a few out there. Nicolas
