RE: [PATCH] asm-generic/io.h: Silence -Wnull-pointer-arithmetic warning on PCI_IOBASE

[David Laight]

From: Arnd Bergmann
> Sent: 13 April 2021 13:58
...
> The remaining ones (csky, m68k, sparc32) need to be inspected
> manually to see if they currently support PCI I/O space but in
> fact use address zero as the base (with large resources) or they
> should also turn the operations into a NOP.

I'd expect sparc32 to use an ASI to access PCI IO space.
I can't quite remember whether IO space was supported at all.

	David

-
Registered Address Lakeside, Bramley Road, Mount Farm, Milton Keynes, MK1 1PT, UK
Registration No: 1397386 (Wales)