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netdev: Don't assume all netdevs are available at runtime.

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Currently we print a warning if a user tries to configure a
netdev that is not in the list that userspace knows about.
However, it is possible that a given netdev maybe be enabled but
when it tries to create a device it finds out that it can't
(not supported by kernel module, hardware not present, etc.).
This makes the behavior the same in both cases.

Signed-off-by: Jesse Gross <jesse@nicira.com>
This commit is contained in:
Jesse Gross
2010-08-17 18:09:53 -04:00
parent e90b1cf9ce
commit cc485f5d1a
1 changed files with 4 additions and 2 deletions
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6
lib/netdev.c
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@@ -272,8 +272,6 @@ create_device(struct netdev_options *options, struct netdev_dev **netdev_devp)
netdev_class = shash_find_data(&netdev_classes, options->type);
if (!netdev_class) {
VLOG_WARN("could not create netdev %s of unknown type %s",
options->name, options->type);
return EAFNOSUPPORT;
}
@@ -312,6 +310,10 @@ netdev_open(struct netdev_options *options, struct netdev **netdevp)
if (!netdev_dev) {
error = create_device(options, &netdev_dev);
if (error) {
if (error == EAFNOSUPPORT) {
VLOG_WARN("could not create netdev %s of unknown type %s",
options->name, options->type);
}
return error;
}
update_device_args(netdev_dev, options->args);