Re: [PATCH RFC v2 12/29] PCI/MSI: Introduce pcim_enable_msi*()family helpers

From: Alexander Gordeev
Date: Thu Oct 24 2013 - 07:39:50 EST

On Thu, Oct 24, 2013 at 11:57:40AM +0100, David Laight wrote:
> The one case it doesn't work is where the driver either
> wants the full number or the minimum number - but not
> a value in between.
> Might be worth adding an extra parameter so that this
> (and maybe other) odd requirements can be met.

IMHO its not worth it, since it is not possible to generalize
all odd requirements out there. I do not think we should blow
the API in this case.

Having said that, the min-or-max interface is probably the only
worth considering. But again, I would prefer to put its semantics
to function name rather than to extra parameters, i.e.

pcim_enable_msix_min_max(struct pci_dev *dev, struct msix_entry *entries,
unsigned int minvec, unsigned int maxvec);

> Some static inline functions could be used for the common cases.
> David

Alexander Gordeev
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