[RESEND PATCH v2] PCI: dwc: Round up num_ctrls if num_vectors is less than MAX_MSI_IRQS_PER_CTRL

[Bjorn Helgaas]

On Tue, Nov 22, 2022 at 09:20:13AM +0800, Shawn Lin wrote:
> Some SoCs may only support 1 RC with a few MSIs support that the total number of MSIs is
> less than MAX_MSI_IRQS_PER_CTRL. 

I'm not quite sure what this sentence says.  Maybe it should be split
into two sentences?

> In this case, num_ctrls will be zero which fails setting
> up MSI support. Fix it by rounding up num_ctrls to at least one.

If you have occasion to repost, please rewrap the commit log to fit in
75 columns.

Krzysztof or Lorenzo will likely fix this when applying otherwise.

Bjorn