systemd/1015-udev-persistent-naming-we-cannot-use-virtio-numbers-.patch

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From bf81e792f3c0aed54edf004c1c95cc6f6d81d0ee Mon Sep 17 00:00:00 2001
From: Tom Gundersen <teg@jklm.no>
Date: Thu, 27 Mar 2014 21:47:14 +0100
Subject: [PATCH] udev: persistent naming - we cannot use virtio numbers as
they are not stable
This reverts commit 8741f2defaf26aafe5ee0fd29954cfdf84ee519c: 'Add virtio-blk support to path_id' and
commit e3d563346c4237af23335cc6904e0662efdf62ad: 'udev: net_id - handle virtio buses'.
Distros may want to take note of this, as it changes behavior.
Signed-off-by: Robert Milasan <rmilasan@suse.com>
---
src/udev/udev-builtin-net_id.c | 36 ------------------------------------
src/udev/udev-builtin-path_id.c | 3 ---
2 files changed, 39 deletions(-)
Index: systemd-210/src/udev/udev-builtin-net_id.c
===================================================================
--- systemd-210.orig/src/udev/udev-builtin-net_id.c
+++ systemd-210/src/udev/udev-builtin-net_id.c
@@ -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
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_de
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;
}
Index: systemd-210/src/udev/udev-builtin-path_id.c
===================================================================
--- systemd-210.orig/src/udev/udev-builtin-path_id.c
+++ systemd-210/src/udev/udev-builtin-path_id.c
@@ -571,9 +571,6 @@ static int builtin_path_id(struct udev_d
} 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");