diff options
| author | Taehee Yoo <ap420073@gmail.com> | 2021-03-25 16:16:52 +0000 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2021-03-26 15:14:55 -0700 |
| commit | cf2ce339b401bc53ee131f0ce38bae32a949925e (patch) | |
| tree | 7f7528820bbb5ce295f1d085d8cc327afe669eb0 /include | |
| parent | 2d9a93b4902be6a5504b5941dd15e9cd776aadca (diff) | |
mld: get rid of inet6_dev->mc_lock
The purpose of mc_lock is to protect inet6_dev->mc_tomb.
But mc_tomb is already protected by RTNL and all functions,
which manipulate mc_tomb are called under RTNL.
So, mc_lock is not needed.
Furthermore, it is spinlock so the critical section is atomic.
In order to reduce atomic context, it should be removed.
Suggested-by: Cong Wang <xiyou.wangcong@gmail.com>
Signed-off-by: Taehee Yoo <ap420073@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'include')
| -rw-r--r-- | include/net/if_inet6.h | 1 |
1 files changed, 0 insertions, 1 deletions
diff --git a/include/net/if_inet6.h b/include/net/if_inet6.h index af5244c9ca5c..1080d2248304 100644 --- a/include/net/if_inet6.h +++ b/include/net/if_inet6.h @@ -167,7 +167,6 @@ struct inet6_dev { struct ifmcaddr6 *mc_list; struct ifmcaddr6 *mc_tomb; - spinlock_t mc_lock; unsigned char mc_qrv; /* Query Robustness Variable */ unsigned char mc_gq_running; |