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libzpci: opticsmon: Refactor on_link_change() using new zpci_find_by_netdev()

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Finding a PCI device given the name of a netdev seems generally useful
so pull this out into a new zpci_find_by_netdev() function in libzpci
and use this to simplify on_link_change() removing the need for
backwards goto.

Reviewed-by: Halil Pasic <pasic@linux.ibm.com>
Reviewed-by: Jan Höppner <hoeppner@linux.ibm.com>
Signed-off-by: Niklas Schnelle <schnelle@linux.ibm.com>
Signed-off-by: Jan Höppner <hoeppner@linux.ibm.com>
This commit is contained in:
Niklas Schnelle
2024-12-09 15:08:03 +01:00
committed by Jan Höppner
parent dff965465c
commit cf5560a100
3 changed files with 45 additions and 16 deletions
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libzpci/pci_list.c
+31
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@@ -356,3 +356,34 @@ void zpci_free_dev_list(struct util_list *zpci_list)
}
util_list_free(zpci_list);
}
/**
* Find a PCI device given the name of a netdev
*
* This function allows finding a PCI device when only the name of one
* of its netdevs is known.
*
* @param[in] zpci_list The device list to search
* @param[in] netdev_name The name of the netdev
* @param[out] netdev Pointer to store the netdev or NULL if
* only the PCI device is needed
*
* @return The PCI device if one is found NULL otherwise
*/
struct zpci_dev *zpci_find_by_netdev(struct util_list *zpci_list, char *netdev_name,
struct zpci_netdev **netdev)
{
struct zpci_dev *zdev = NULL;
int i;
util_list_iterate(zpci_list, zdev) {
for (i = 0; i < zdev->num_netdevs; i++) {
if (!strcmp(zdev->netdevs[i].name, netdev_name)) {
if (netdev)
*netdev = &zdev->netdevs[i];
return zdev;
}
}
}
return NULL;
}