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udev: persistent naming - we cannot use virtio numbers as they are not stable

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This reverts commit 8741f2defa: 'Add virtio-blk support to path_id' and
commit e3d563346c: 'udev: net_id - handle virtio buses'.

Distros may want to take note of this, as it changes behavior.
This commit is contained in:
Tom Gundersen 2014-03-27 21:47:14 +01:00
parent 9f2a50a300
commit bf81e792f3
Notes: Lennart Poettering 2014-05-24 13:22:11 +08:00 
Backport: bugfix
2 changed files with 0 additions and 39 deletions
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36
src/udev/udev-builtin-net_id.c
View File

@ -37,7 +37,6 @@
* ccw<name> -- CCW bus group name
* o<index> -- on-board device index number
* s<slot>[f<function>][d<dev_id>] -- hotplug slot index number
* v<number> -- virtio number
* x<MAC> -- MAC address
* [P<domain>]p<bus>s<slot>[f<function>][d<dev_id>]
* -- PCI geographical location
@ -123,7 +122,6 @@ struct netnames {
char usb_ports[IFNAMSIZ];
char bcma_core[IFNAMSIZ];
char virtio[IFNAMSIZ];
char ccw_group[IFNAMSIZ];
};
@ -351,24 +349,6 @@ static int names_bcma(struct udev_device *dev, struct netnames *names) {
return 0;
}
static int names_virtio(struct udev_device *dev, struct netnames *names) {
struct udev_device *virtdev;
unsigned int num;
virtdev = udev_device_get_parent_with_subsystem_devtype(dev, "virtio", NULL);
if (!virtdev)
return -ENOENT;
if (sscanf(udev_device_get_sysname(virtdev), "virtio%u", &num) != 1)
return -EINVAL;
/* suppress the common num == 0 */
if (num > 0)
snprintf(names->virtio, sizeof(names->virtio), "v%u", num);
names->type = NET_VIRTIO;
return 0;
}
static int names_ccw(struct udev_device *dev, struct netnames *names) {
struct udev_device *cdev;
const char *bus_id;
@ -577,22 +557,6 @@ static int builtin_net_id(struct udev_device *dev, int argc, char *argv[], bool
udev_builtin_add_property(dev, test, "ID_NET_NAME_SLOT", str);
goto out;
}
/* virtio bus */
err = names_virtio(dev, &names);
if (err >= 0 && names.type == NET_VIRTIO) {
char str[IFNAMSIZ];
if (names.pci_path[0])
if (snprintf(str, sizeof(str), "%s%s%s", prefix, names.pci_path, names.virtio) < (int)sizeof(str))
udev_builtin_add_property(dev, test, "ID_NET_NAME_PATH", str);
if (names.pci_slot[0])
if (snprintf(str, sizeof(str), "%s%s%s", prefix, names.pci_slot, names.virtio) < (int)sizeof(str))
udev_builtin_add_property(dev, test, "ID_NET_NAME_SLOT", str);
goto out;
}
out:
return EXIT_SUCCESS;
}

3
src/udev/udev-builtin-path_id.c
View File

@ -542,9 +542,6 @@ static int builtin_path_id(struct udev_device *dev, int argc, char *argv[], bool
} else if (streq(subsys, "xen")) {
path_prepend(&path, "xen-%s", udev_device_get_sysname(parent));
parent = skip_subsystem(parent, "xen");
} else if (streq(subsys, "virtio")) {
path_prepend(&path, "virtio-pci-%s", udev_device_get_sysname(parent));
parent = skip_subsystem(parent, "virtio");
} else if (streq(subsys, "scm")) {
path_prepend(&path, "scm-%s", udev_device_get_sysname(parent));
parent = skip_subsystem(parent, "scm");