Messages in this thread | | | Date | Thu, 24 Oct 2013 22:23:22 -0400 | From | Mark Lord <> | Subject | Re: [PATCH RFC v2 12/29] PCI/MSI: Introduce pcim_enable_msi*() family helpers |
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On 13-10-24 10:31 AM, Alexander Gordeev wrote: > On Thu, Oct 24, 2013 at 11:51:58AM +0100, Tejun Heo wrote: >> I haven't looked into any details but, if the above works for most use >> cases, it looks really good to me. > > Well, if we reuse Michael's statistics: > > - 58 drivers call pci_enable_msix() > - 24 try a single allocation and then fallback to MSI/LSI > - 19 use the loop style allocation > - 14 try an allocation, and if it fails retry once > > ...then I expect most of 19/58 (loop style) could be converted to > pcim_enable_msix() and pcim_enable_msix_range() and all of 14/58 > (single fallback) should be converted to pcim_enable_msix() users.
Those are just the in-kernel drivers. There are many, many more out-of-kernel drivers for embedded platforms, hardware in-development, etc..
Let's not be overly presumptive about the size of the user base.
Cheers
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