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| author | Amol Grover <frextrite@gmail.com> | 2020-02-21 16:15:38 +0100 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2020-02-24 22:01:54 +0100 |
| commit | 958a93c15466c69e2ec531332e67011f549943bd (patch) | |
| tree | 76ac4e6dfd5994ff4ff1a90459ba36fdfdac4695 /net/ipv4/tcp_ulp.c | |
| parent | Merge branch 'mlxsw-Introduce-ACL-traps' (diff) | |
| download | linux-958a93c15466c69e2ec531332e67011f549943bd.tar.xz linux-958a93c15466c69e2ec531332e67011f549943bd.zip | |
tcp, ulp: Pass lockdep expression to RCU lists
tcp_ulp_list is traversed using list_for_each_entry_rcu
outside an RCU read-side critical section but under the protection
of tcp_ulp_list_lock.
Hence, add corresponding lockdep expression to silence false-positive
warnings, and harden RCU lists.t
Signed-off-by: Amol Grover <frextrite@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'net/ipv4/tcp_ulp.c')
| -rw-r--r-- | net/ipv4/tcp_ulp.c | 3 |
1 files changed, 2 insertions, 1 deletions
diff --git a/net/ipv4/tcp_ulp.c b/net/ipv4/tcp_ulp.c index 6c43fa189195..2703f24c5d1a 100644 --- a/net/ipv4/tcp_ulp.c +++ b/net/ipv4/tcp_ulp.c @@ -22,7 +22,8 @@ static struct tcp_ulp_ops *tcp_ulp_find(const char *name) { struct tcp_ulp_ops *e; - list_for_each_entry_rcu(e, &tcp_ulp_list, list) { + list_for_each_entry_rcu(e, &tcp_ulp_list, list, + lockdep_is_held(&tcp_ulp_list_lock)) { if (strcmp(e->name, name) == 0) return e; } |