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

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

drivers/xen/xen-pciback/pci_stub.c

+9 −0
Original line number Diff line number Diff line
@@ -242,6 +242,15 @@ struct pci_dev *pcistub_get_pci_dev(struct xen_pcibk_device *pdev, 
	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)

{

	struct pcistub_device *psdev, *found_psdev = NULL;