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ksmbd: add netdev-up/down event debug print

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[ Upstream commit 5f3f274e2ce68999b49901de4794c4b04125b154 ]

Add netdev-up/down event debug print to find what netdev is connected or
disconnected.

Signed-off-by: Namjae Jeon <linkinjeon@kernel.org>
Signed-off-by: Steve French <stfrench@microsoft.com>
Stable-dep-of: 21a4e47578d4 ("ksmbd: fix use-after-free in __smb2_lease_break_noti()")
Signed-off-by: Sasha Levin <sashal@kernel.org>
This commit is contained in:
Namjae Jeon
2024-11-22 16:14:37 +09:00
committed by Greg Kroah-Hartman
parent 0772765ac8
commit 8d2c1acc88
1 changed files with 6 additions and 0 deletions
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fs/smb/server/transport_tcp.c
+6
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@@ -521,6 +521,8 @@ static int ksmbd_netdev_event(struct notifier_block *nb, unsigned long event,
found = 1; found = 1;
if (iface->state != IFACE_STATE_DOWN) if (iface->state != IFACE_STATE_DOWN)
break; break;
ksmbd_debug(CONN, "netdev-up event: netdev(%s) is going up\n",
iface->name);
ret = create_socket(iface); ret = create_socket(iface);
if (ret) if (ret)
return NOTIFY_OK; return NOTIFY_OK;
@@ -531,6 +533,8 @@ static int ksmbd_netdev_event(struct notifier_block *nb, unsigned long event,
iface = alloc_iface(kstrdup(netdev->name, KSMBD_DEFAULT_GFP)); iface = alloc_iface(kstrdup(netdev->name, KSMBD_DEFAULT_GFP));
if (!iface) if (!iface)
return NOTIFY_OK; return NOTIFY_OK;
ksmbd_debug(CONN, "netdev-up event: netdev(%s) is going up\n",
iface->name);
ret = create_socket(iface); ret = create_socket(iface);
if (ret) if (ret)
break; break;
@@ -540,6 +544,8 @@ static int ksmbd_netdev_event(struct notifier_block *nb, unsigned long event,
list_for_each_entry(iface, &iface_list, entry) { list_for_each_entry(iface, &iface_list, entry) {
if (!strcmp(iface->name, netdev->name) && if (!strcmp(iface->name, netdev->name) &&
iface->state == IFACE_STATE_CONFIGURED) { iface->state == IFACE_STATE_CONFIGURED) {
ksmbd_debug(CONN, "netdev-down event: netdev(%s) is going down\n",
iface->name);
tcp_stop_kthread(iface->ksmbd_kthread); tcp_stop_kthread(iface->ksmbd_kthread);
iface->ksmbd_kthread = NULL; iface->ksmbd_kthread = NULL;
mutex_lock(&iface->sock_release_lock); mutex_lock(&iface->sock_release_lock);