Messages in this thread | | | Date | Wed, 6 Aug 2014 09:23:51 +0800 | From | Yijing Wang <> | Subject | Re: [RFC PATCH 03/11] PCI/MSI: Refactor pci_dev_msi_enabled() |
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On 2014/8/6 6:35, Stuart Yoder wrote: > On Fri, Jul 25, 2014 at 10:08 PM, Yijing Wang <wangyijing@huawei.com> wrote: >> Pci_dev_msi_enabled() is used to check whether device >> MSI/MSIX enabled. Refactor this function to suuport >> checking only device MSI or MSIX enabled. >> >> Signed-off-by: Yijing Wang <wangyijing@huawei.com> > > So this patch refactors things so that checks like this: > > - if (!dev->msi_enabled) > > are moved into a function: > > + if (!pci_dev_msi_enabled(dev, MSI_TYPE)) > > Can you explain a bit more why this needed. Is it just cleanup?
Hi Stuart, it's not just cleanup, because "[RFC PATCH 08/11] PCI/MSI: Introduce new struct msi_irqs and struct msi_ops" introduced struct msi_irqs, so the code will change to if (!dev->msi_irqs->msi_enabled)
I think driver should not need to know the details of MSI members. So I try to rework the pci_dev_msi_enabled() to hide the detailed MSI info.
Thanks! Yijing.
> > . >
-- Thanks! Yijing
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