mlxsw: core_acl_flex_actions: Fix helper to get the first KVD linear index

The helper should return always KVD linear index of the second set.
It is unused now, but going to be used soon.
Signed-off-by: NJiri Pirko <jiri@mellanox.com>
Signed-off-by: NIdo Schimmel <idosch@mellanox.com>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

drivers/net/ethernet/mellanox/mlxsw/core_acl_flex_actions.c

@@ -430,11 +430,16 @@ char *mlxsw_afa_block_first_set(struct mlxsw_afa_block *block)
 }
 EXPORT_SYMBOL(mlxsw_afa_block_first_set);
 
-u32 mlxsw_afa_block_first_set_kvdl_index(struct mlxsw_afa_block *block)
+u32 mlxsw_afa_block_first_kvdl_index(struct mlxsw_afa_block *block)
 {
-	return block->first_set->kvdl_index;
+	/* First set is never in KVD linear. So the first set
+	 * with valid KVD linear index is always the second one.
+	 */
+	if (WARN_ON(!block->first_set->next))
+		return 0;
+	return block->first_set->next->kvdl_index;
 }
-EXPORT_SYMBOL(mlxsw_afa_block_first_set_kvdl_index);
+EXPORT_SYMBOL(mlxsw_afa_block_first_kvdl_index);
 
 int mlxsw_afa_block_continue(struct mlxsw_afa_block *block)
 {

drivers/net/ethernet/mellanox/mlxsw/core_acl_flex_actions.h

@@ -65,7 +65,7 @@ struct mlxsw_afa_block *mlxsw_afa_block_create(struct mlxsw_afa *mlxsw_afa);
 void mlxsw_afa_block_destroy(struct mlxsw_afa_block *block);
 int mlxsw_afa_block_commit(struct mlxsw_afa_block *block);
 char *mlxsw_afa_block_first_set(struct mlxsw_afa_block *block);
-u32 mlxsw_afa_block_first_set_kvdl_index(struct mlxsw_afa_block *block);
+u32 mlxsw_afa_block_first_kvdl_index(struct mlxsw_afa_block *block);
 int mlxsw_afa_block_continue(struct mlxsw_afa_block *block);
 int mlxsw_afa_block_jump(struct mlxsw_afa_block *block, u16 group_id);
 int mlxsw_afa_block_terminate(struct mlxsw_afa_block *block);