Re: [PATCH v5 00/44] treewide: Remove I/O port accessors for HAS_IOPORT=n

Martin K. Petersen
2023-06-08T01:44:21Z

On Mon, 22 May 2023 12:50:05 +0200, Niklas Schnelle wrote:

> Some platforms such as s390 do not support PCI I/O spaces. On such platforms
> I/O space accessors like inb()/outb() are stubs that can never actually work.
> The way these stubs are implemented in asm-generic/io.h leads to compiler
> warnings because any use will be a NULL pointer access on these platforms. In
> a previous patch we tried handling this with a run-time warning on access. This
> approach however was rejected by Linus[0] with the argument that this really
> should be a compile-time check and, though a much more invasive change, we
> believe that is indeed the right approach.
>
> [...]

Applied to 6.5/scsi-queue, thanks!

[21/44] mpt fusion: add HAS_IOPORT dependencies
https://git.kernel.org/mkp/scsi/c/c3f903472ffa
[31/44] scsi: add HAS_IOPORT dependencies
https://git.kernel.org/mkp/scsi/c/b58b2ba351b0

--
Martin K. Petersen Oracle Linux Engineering