diff options
| author |   Kuniyuki Iwashima <kuniyu@amazon.com> | 2022-07-18 10:26:41 -0700 |
|---|---|---|
| committer |   David S. Miller <davem@davemloft.net> | 2022-07-20 10:14:49 +0100 |
| commit | 8895a9c2ac76fb9d3922fed4fe092c8ec5e5cccc (patch) | |
| tree | 9e0f0aa8a1acd645fd5b4fb74838d272e27c346f /drivers | |
| parent | ipv4: Fix data-races around sysctl_fib_multipath_hash_policy. (diff) | |
| download | linux-dev-8895a9c2ac76fb9d3922fed4fe092c8ec5e5cccc.tar.xz linux-dev-8895a9c2ac76fb9d3922fed4fe092c8ec5e5cccc.zip | |
ipv4: Fix data-races around sysctl_fib_multipath_hash_fields.
While reading sysctl_fib_multipath_hash_fields, it can be changed
concurrently. Thus, we need to add READ_ONCE() to its readers.
Fixes: ce5c9c20d364 ("ipv4: Add a sysctl to control multipath hash fields")
Signed-off-by: Kuniyuki Iwashima <kuniyu@amazon.com>
Reviewed-by: Ido Schimmel <idosch@nvidia.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'drivers')
| -rw-r--r-- | drivers/net/ethernet/mellanox/mlxsw/spectrum_router.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/drivers/net/ethernet/mellanox/mlxsw/spectrum_router.c b/drivers/net/ethernet/mellanox/mlxsw/spectrum_router.c index de63a5f3b767..85aa1c468cd4 100644 --- a/drivers/net/ethernet/mellanox/mlxsw/spectrum_router.c +++ b/drivers/net/ethernet/mellanox/mlxsw/spectrum_router.c @@ -10342,7 +10342,7 @@ static void mlxsw_sp_mp4_hash_init(struct mlxsw_sp *mlxsw_sp, mlxsw_sp_mp_hash_inner_l3(config); break; case 3: - hash_fields = net->ipv4.sysctl_fib_multipath_hash_fields; + hash_fields = READ_ONCE(net->ipv4.sysctl_fib_multipath_hash_fields); /* Outer */ MLXSW_SP_MP_HASH_HEADER_SET(headers, IPV4_EN_NOT_TCP_NOT_UDP); MLXSW_SP_MP_HASH_HEADER_SET(headers, IPV4_EN_TCP_UDP); |