[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index] Re: [Xen-devel] [PATCH v3 05/11] igd: TYPE_IGD_PASSTHROUGH_I440FX_PCI_DEVICE: call parent realize
On Wed, Jan 06, 2016 at 04:45:01PM +0100, Gerd Hoffmann wrote: > > > > > > +static void (*i440fx_realize)(PCIDevice *pci_dev, Error **errp); > > > static void igd_pt_i440fx_realize(PCIDevice *pci_dev, Error **errp) > > > { > > > + Error *err = NULL; > > > uint32_t val = 0; > > > int rc, i, num; > > > int pos, len; > > > > Can't we get the parent PCIDeviceClass realize function from pci_dev? So > > that we don't have to introduce i440fx_realize? > > I don't think so ... > > > > > > > + i440fx_realize = k->realize; > > > k->realize = igd_pt_i440fx_realize; > > ... because we are overriding it right here. Many device classes have a parent_realize field so they can keep a pointer to the original realize function. It's better than a static variable. -- Eduardo _______________________________________________ Xen-devel mailing list Xen-devel@xxxxxxxxxxxxx http://lists.xen.org/xen-devel
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