On Wed, Sep 07, 2022 at 10:47:39AM -0300, Jason Gunthorpe wrote:
> Would you be happier if we wrote it like
>
> #define IOMMU_EINCOMPATIBLE_DEVICE xx
>
> Which tells "which of the function parameters is actually invalid" ?
Having done some Rust hacking in the last months, I have to say I like
to concept of error handling with Result<> there. Ideally we have a way
to emulate that in our C code without having to change all callers.
What I am proposing is a way this could be emulated here, but I am open
to other suggestions. Still better than re-using random error codes for
special purposes.
Regards,
Joerg
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