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hsr: rename debugfs file when interface name is changed

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commit 4c2d5e33dc 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: fc4ecaeebd ("net: hsr: add debugfs support for display node list")
Signed-off-by: Taehee Yoo <ap420073@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
Taehee Yoo 2019-12-22 11:26:39 +00:00 committed by Greg Kroah-Hartman
parent 0299f24a97
commit 5f3ff06815
3 changed files with 20 additions and 0 deletions
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13
net/hsr/hsr_debugfs.c
View File

@ -65,6 +65,19 @@ hsr_node_table_open(struct inode *inode, struct file *filp)
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,

3
net/hsr/hsr_main.c
View File

@ -45,6 +45,9 @@ static int hsr_netdev_notify(struct notifier_block *nb, unsigned long event,
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

4
net/hsr/hsr_main.h
View File

@ -185,11 +185,15 @@ static inline u16 hsr_get_skb_sequence_nr(struct sk_buff *skb)
}
#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)
{}