diff options
Diffstat (limited to 'net/core/net-sysfs.c')
| -rw-r--r-- | net/core/net-sysfs.c | 11 |
1 files changed, 11 insertions, 0 deletions
diff --git a/net/core/net-sysfs.c b/net/core/net-sysfs.c index 221a64ab64f7..e441ec7988c1 100644 --- a/net/core/net-sysfs.c +++ b/net/core/net-sysfs.c @@ -424,6 +424,17 @@ static int netdev_uevent(struct device *d, char **envp, if ((size <= 0) || (i >= num_envp)) return -ENOMEM; + /* pass ifindex to uevent. + * ifindex is useful as it won't change (interface name may change) + * and is what RtNetlink uses natively. */ + envp[i++] = buf; + n = snprintf(buf, size, "IFINDEX=%d", dev->ifindex) + 1; + buf += n; + size -= n; + + if ((size <= 0) || (i >= num_envp)) + return -ENOMEM; + envp[i] = NULL; return 0; } |