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xen-pciback: simplify vpci's find hook

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There's no point in comparing SBDF - we can simply compare the struct
pci_dev pointers. If they weren't the same for a given device, we'd have
bigger problems from having stored a stale pointer.

Signed-off-by: Jan Beulich <jbeulich@suse.com>
Reviewed-by: Boris Ostrovsky <boris.ostrovsky@oracle.com>

Link: https://lore.kernel.org/r/158273a2-d1b9-3545-b25d-affca867376c@suse.com
Signed-off-by: Juergen Gross <jgross@suse.com>
This commit is contained in:
Jan Beulich 2021-04-07 16:37:58 +02:00 committed by Juergen Gross
parent ec3307a5bb
commit a929e12406
1 changed files with 1 additions and 6 deletions
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7
drivers/xen/xen-pciback/vpci.c
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@ -233,7 +233,6 @@ static int __xen_pcibk_get_pcifront_dev(struct pci_dev *pcidev,
unsigned int *devfn)
{
struct pci_dev_entry *entry;
struct pci_dev *dev = NULL;
struct vpci_dev_data *vpci_dev = pdev->pci_dev_data;
int found = 0, slot;
@ -242,11 +241,7 @@ static int __xen_pcibk_get_pcifront_dev(struct pci_dev *pcidev,
list_for_each_entry(entry,
&vpci_dev->dev_list[slot],
list) {
dev = entry->dev;
if (dev && dev->bus->number == pcidev->bus->number
&& pci_domain_nr(dev->bus) ==
pci_domain_nr(pcidev->bus)
&& dev->devfn == pcidev->devfn) {
if (entry->dev == pcidev) {
found = 1;
*domain = 0;
*bus = 0;