udev: net_id - improve comments
The dev_port concept is a bit confusing, expand on the comment a bit.
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@ -146,7 +146,7 @@ static int dev_pci_onboard(struct udev_device *dev, struct netnames *names) {
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if (idx <= 0)
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return -EINVAL;
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/* kernel provided multi-device index */
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/* kernel provided port index for multiple ports on a single PCI function */
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attr = udev_device_get_sysattr_value(dev, "dev_port");
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if (attr)
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dev_port = strtol(attr, NULL, 10);
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@ -199,7 +199,7 @@ static int dev_pci_slot(struct udev_device *dev, struct netnames *names) {
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if (sscanf(udev_device_get_sysname(names->pcidev), "%x:%x:%x.%u", &domain, &bus, &slot, &func) != 4)
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return -ENOENT;
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/* kernel provided multi-device index */
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/* kernel provided port index for multiple ports on a single PCI function */
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attr = udev_device_get_sysattr_value(dev, "dev_port");
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if (attr)
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dev_port = strtol(attr, NULL, 10);
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