team: use rcu_access_pointer to access RCU pointer by writer

Signed-off-by: Jiri Pirko <jpirko@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

2 files changed, 10 insertions, 5 deletions

diff --git a/drivers/net/team/team_mode_activebackup.c b/drivers/net/team/team_mode_activebackup.c
index 2fe02a8713ea..c9e7621b4480 100644
--- a/drivers/net/team/team_mode_activebackup.c
+++ b/drivers/net/team/team_mode_activebackup.c
@@ -61,8 +61,11 @@ static void ab_port_leave(struct team *team, struct team_port *port)
 
 static int ab_active_port_get(struct team *team, struct team_gsetter_ctx *ctx)
 {
-        if (ab_priv(team)->active_port)
-                ctx->data.u32_val = ab_priv(team)->active_port->dev->ifindex;
+        struct team_port *active_port;
+
+        active_port = rcu_access_pointer(ab_priv(team)->active_port);
+        if (active_port)
+                ctx->data.u32_val = active_port->dev->ifindex;
         else
                 ctx->data.u32_val = 0;
         return 0;
diff --git a/drivers/net/team/team_mode_loadbalance.c b/drivers/net/team/team_mode_loadbalance.c
index 45cc0951aa48..b4475a5d2d4b 100644
--- a/drivers/net/team/team_mode_loadbalance.c
+++ b/drivers/net/team/team_mode_loadbalance.c
@@ -96,7 +96,7 @@ static void lb_tx_hash_to_port_mapping_null_port(struct team *team,
                 struct lb_port_mapping *pm;
 
                 pm = &lb_priv->ex->tx_hash_to_port_mapping[i];
-                if (pm->port == port) {
+                if (rcu_access_pointer(pm->port) == port) {
                         rcu_assign_pointer(pm->port, NULL);
                         team_option_inst_set_change(pm->opt_inst_info);
                         changed = true;
@@ -292,7 +292,7 @@ static int lb_bpf_func_set(struct team *team, struct team_gsetter_ctx *ctx)
         if (lb_priv->ex->orig_fprog) {
                 /* Clear old filter data */
                 __fprog_destroy(lb_priv->ex->orig_fprog);
-                sk_unattached_filter_destroy(lb_priv->fp);
+                sk_unattached_filter_destroy(rcu_access_pointer(lb_priv->fp));
         }
 
         rcu_assign_pointer(lb_priv->fp, fp);
@@ -303,9 +303,11 @@ static int lb_bpf_func_set(struct team *team, struct team_gsetter_ctx *ctx)
 static int lb_tx_method_get(struct team *team, struct team_gsetter_ctx *ctx)
 {
         struct lb_priv *lb_priv = get_lb_priv(team);
+        lb_select_tx_port_func_t *func;
         char *name;
 
-        name = lb_select_tx_port_get_name(lb_priv->select_tx_port_func);
+        func = rcu_access_pointer(lb_priv->select_tx_port_func);
+        name = lb_select_tx_port_get_name(func);
         BUG_ON(!name);
         ctx->data.str_val = name;
         return 0;