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

From: Tejun Heo
Date: Thu Oct 24 2013 - 07:01:52 EST


Hello,

On Thu, Oct 24, 2013 at 11:57:40AM +0100, David Laight wrote:
> > > ...would turn into a single helper call....
> > >
> > > rc = pcim_enable_msix_range(adapter->pdev,
> > > adapter->msix_entries,
> > > nvec,
> > > FOO_DRIVER_MINIMUM_NVEC);
> >
> > I haven't looked into any details but, if the above works for most use
> > cases, it looks really good to me.
>
> 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.
>
> Some static inline functions could be used for the common cases.

If those are edge cases, I don't think it's a big deal no matter what
we do.

Thanks.

--
tejun
--
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@xxxxxxxxxxxxxxx
More majordomo info at http://vger.kernel.org/majordomo-info.html
Please read the FAQ at http://www.tux.org/lkml/