From: Taehee Yoo <ap420073@xxxxxxxxx> commit 4c2d5e33dcd3a6333a7895be3b542ff3d373177c upstream. hsr interface has own debugfs file, which name is same with interface name. So, interface name is changed, debugfs file name should be changed too. Fixes: fc4ecaeebd26 ("net: hsr: add debugfs support for display node list") Signed-off-by: Taehee Yoo <ap420073@xxxxxxxxx> Signed-off-by: David S. Miller <davem@xxxxxxxxxxxxx> Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx> --- net/hsr/hsr_debugfs.c | 13 +++++++++++++ net/hsr/hsr_main.c | 3 +++ net/hsr/hsr_main.h | 4 ++++ 3 files changed, 20 insertions(+) --- a/net/hsr/hsr_debugfs.c +++ b/net/hsr/hsr_debugfs.c @@ -65,6 +65,19 @@ hsr_node_table_open(struct inode *inode, return single_open(filp, hsr_node_table_show, inode->i_private); } +void hsr_debugfs_rename(struct net_device *dev) +{ + struct hsr_priv *priv = netdev_priv(dev); + struct dentry *d; + + d = debugfs_rename(hsr_debugfs_root_dir, priv->node_tbl_root, + hsr_debugfs_root_dir, dev->name); + if (IS_ERR(d)) + netdev_warn(dev, "failed to rename\n"); + else + priv->node_tbl_root = d; +} + static const struct file_operations hsr_fops = { .open = hsr_node_table_open, .read = seq_read, --- a/net/hsr/hsr_main.c +++ b/net/hsr/hsr_main.c @@ -45,6 +45,9 @@ static int hsr_netdev_notify(struct noti case NETDEV_CHANGE: /* Link (carrier) state changes */ hsr_check_carrier_and_operstate(hsr); break; + case NETDEV_CHANGENAME: + hsr_debugfs_rename(dev); + break; case NETDEV_CHANGEADDR: if (port->type == HSR_PT_MASTER) { /* This should not happen since there's no --- a/net/hsr/hsr_main.h +++ b/net/hsr/hsr_main.h @@ -185,11 +185,15 @@ static inline u16 hsr_get_skb_sequence_n } #if IS_ENABLED(CONFIG_DEBUG_FS) +void hsr_debugfs_rename(struct net_device *dev); void hsr_debugfs_init(struct hsr_priv *priv, struct net_device *hsr_dev); void hsr_debugfs_term(struct hsr_priv *priv); void hsr_debugfs_create_root(void); void hsr_debugfs_remove_root(void); #else +static inline void void hsr_debugfs_rename(struct net_device *dev) +{ +} static inline void hsr_debugfs_init(struct hsr_priv *priv, struct net_device *hsr_dev) {}