Re: [PATCH v2 2/6] PCI/MSI: Factor out pci_get_msi_cap() interface

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Hello, Bjorn.

On Fri, Sep 06, 2013 at 10:01:38AM -0600, Bjorn Helgaas wrote:
> Sorry, I haven't jumped in here yet because I saw your discussion and
> was hoping you guys would figure something out without my help.  It
> will take me a few hours to look into this and come up with anything
> constructive to say.
> 
> I do remember disliking the complicated interface of
> pci_enable_msi_block() (return negative errno, return positive "we
> might be able to do this" values, or zero), but I'll have to do some
> more research before I can say much more than that.

According to Alexander, it doesn't even seem like we have any actual
use case for the positive return numbers.  I say just rip it out and
do the regular 0/-errno all the way through.

Thanks.

-- 
tejun
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