Commit 0a9fd015 authored by Konrad Rzeszutek Wilk's avatar Konrad Rzeszutek Wilk

xen/pciback: Document the entry points for 'pcistub_put_pci_dev'

which are quite a few. It should be evident that dealing with that
many options is a bit complex.
Signed-off-by: default avatarKonrad Rzeszutek Wilk <konrad.wilk@oracle.com>
Reviewed-by: default avatarDavid Vrabel <david.vrabel@citrix.com>
parent 24d8bf1b
...@@ -242,6 +242,15 @@ struct pci_dev *pcistub_get_pci_dev(struct xen_pcibk_device *pdev, ...@@ -242,6 +242,15 @@ struct pci_dev *pcistub_get_pci_dev(struct xen_pcibk_device *pdev,
return found_dev; return found_dev;
} }
/*
* Called when:
* - XenBus state has been reconfigure (pci unplug). See xen_pcibk_remove_device
* - XenBus state has been disconnected (guest shutdown). See xen_pcibk_xenbus_remove
* - 'echo BDF > unbind' on pciback module with no guest attached. See pcistub_remove
* - 'echo BDF > unbind' with a guest still using it. See pcistub_remove
*
* As such we have to be careful.
*/
void pcistub_put_pci_dev(struct pci_dev *dev) void pcistub_put_pci_dev(struct pci_dev *dev)
{ {
struct pcistub_device *psdev, *found_psdev = NULL; struct pcistub_device *psdev, *found_psdev = NULL;
......
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