Re: [patch 23/39] PCI/MSI: Move pci_alloc_irq_vectors_affinity() to api.c

Peter Zijlstra
2022-11-18T12:59:16Z

On Fri, Nov 18, 2022 at 01:34:12PM +0100, Ahmed S. Darwish wrote:
> On Wed, Nov 16, 2022 at 10:23:22AM -0600, Bjorn Helgaas wrote:
> > On Fri, Nov 11, 2022 at 02:54:51PM +0100, Thomas Gleixner wrote:
> ...
> > > +
> > > +/**
> > > + * pci_alloc_irq_vectors_affinity() - Allocate multiple device interrupt
> > > + * vectors with affinity requirements
> > > + * @dev: the PCI device to operate on
> > > + * @min_vecs: minimum required number of vectors (must be >= 1)
> > > + * @max_vecs: maximum desired number of vectors
> > > + * @flags: allocation flags, as in pci_alloc_irq_vectors()
> > > + * @affd: affinity requirements (can be %NULL).
> > > + *
> > > + * Same as pci_alloc_irq_vectors(), but with the extra @affd parameter.
> > > + * Check that function docs, and &struct irq_affinity, for more details.
> >
> > Is "&struct irq_affinity" some kernel-doc syntax, or is the "&"
> > superfluous?
> >
>
> Hmmm, I stole it from Documentation/doc-guide/kernel-doc.rst. htmldoc
> parses it and generates a link to the referenced structure's kernel-doc.
>
> But, yeah, this was literally the first usage of such a doc pattern in
> the entire kernel's C code :)

Perhaps then not start with it and instead try and convince John to make
his script more clever -- this same script already recognises functions
by their () suffix, might as well also key off the 'struct' keyword, no?

This is a Code comment, to be read in a text editor. That & is a syntax
error.