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authorCong Wang <xiyou.wangcong@gmail.com>2020-05-03 08:22:19 +0300
committerDavid S. Miller <davem@davemloft.net>2020-05-04 22:05:56 +0300
commit1a33e10e4a95cb109ff1145098175df3113313ef (patch)
treea903d8645954f9d50e03c3f0b8a25479ec2f6985 /net/bluetooth
parentea84c842900872f5b8d6d4754cf0fa37d6672011 (diff)
downloadlinux-1a33e10e4a95cb109ff1145098175df3113313ef.tar.xz
net: partially revert dynamic lockdep key changes
This patch reverts the folowing commits: commit 064ff66e2bef84f1153087612032b5b9eab005bd "bonding: add missing netdev_update_lockdep_key()" commit 53d374979ef147ab51f5d632dfe20b14aebeccd0 "net: avoid updating qdisc_xmit_lock_key in netdev_update_lockdep_key()" commit 1f26c0d3d24125992ab0026b0dab16c08df947c7 "net: fix kernel-doc warning in <linux/netdevice.h>" commit ab92d68fc22f9afab480153bd82a20f6e2533769 "net: core: add generic lockdep keys" but keeps the addr_list_lock_key because we still lock addr_list_lock nestedly on stack devices, unlikely xmit_lock this is safe because we don't take addr_list_lock on any fast path. Reported-and-tested-by: syzbot+aaa6fa4949cc5d9b7b25@syzkaller.appspotmail.com Cc: Dmitry Vyukov <dvyukov@google.com> Cc: Taehee Yoo <ap420073@gmail.com> Signed-off-by: Cong Wang <xiyou.wangcong@gmail.com> Acked-by: Taehee Yoo <ap420073@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'net/bluetooth')
-rw-r--r--net/bluetooth/6lowpan.c8
1 files changed, 8 insertions, 0 deletions
diff --git a/net/bluetooth/6lowpan.c b/net/bluetooth/6lowpan.c
index 4febc82a7c76..bb55d92691b0 100644
--- a/net/bluetooth/6lowpan.c
+++ b/net/bluetooth/6lowpan.c
@@ -571,7 +571,15 @@ static netdev_tx_t bt_xmit(struct sk_buff *skb, struct net_device *netdev)
return err < 0 ? NET_XMIT_DROP : err;
}
+static int bt_dev_init(struct net_device *dev)
+{
+ netdev_lockdep_set_classes(dev);
+
+ return 0;
+}
+
static const struct net_device_ops netdev_ops = {
+ .ndo_init = bt_dev_init,
.ndo_start_xmit = bt_xmit,
};