From: Ingo Molnar <[email protected]>
Date: Mon, 29 Oct 2007 22:17:46 +0100
>
> hm, this seems to have popped up in the last few days, never had it
> before:
>
> sysfs: duplicate filename 'eth0' can not be created
> WARNING: at fs/sysfs/dir.c:424 sysfs_add_one()
I checked in a change from Stephen Hemminger last week which
should keep this case from emitting warning messages.
commit c8d90dca3211966ba5189e0f3d4bccd558d9ae08
Author: Stephen Hemminger <[email protected]>
Date: Fri Oct 26 03:53:42 2007 -0700
[NET] dev_change_name: ignore changes to same name
Prevent error/backtrace from dev_rename() when changing
name of network device to the same name. This is a common
situation with udev and other scripts that bind addr to device.
Signed-off-by: Stephen Hemminger <[email protected]>
Signed-off-by: David S. Miller <[email protected]>
diff --git a/net/core/dev.c b/net/core/dev.c
index f1647d7..ddfef3b 100644
--- a/net/core/dev.c
+++ b/net/core/dev.c
@@ -883,6 +883,9 @@ int dev_change_name(struct net_device *dev, char *newname)
if (!dev_valid_name(newname))
return -EINVAL;
+ if (strncmp(newname, dev->name, IFNAMSIZ) == 0)
+ return 0;
+
memcpy(oldname, dev->name, IFNAMSIZ);
if (strchr(newname, '%')) {
-
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