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-rw-r--r--lib/diameter/src/base/diameter_traffic.erl4
1 files changed, 3 insertions, 1 deletions
diff --git a/lib/diameter/src/base/diameter_traffic.erl b/lib/diameter/src/base/diameter_traffic.erl
index e9acb5c0e8..b1b797aad8 100644
--- a/lib/diameter/src/base/diameter_traffic.erl
+++ b/lib/diameter/src/base/diameter_traffic.erl
@@ -288,7 +288,9 @@ spawn_request(false, _, _, _, _, _, _) -> %% no transport
%% count outstanding requests. Acknowledgement is implicit if the
%% handler process dies (in a handle_request callback for example).
spawn_request(AppT, {M,F,A}, Ack, TPid, Pkt, Dict0, RecvData) ->
- %% Term to pass to request/1 in an appropriate process.
+ %% Term to pass to request/1 in an appropriate process. Module
+ %% diameter_dist implements callbacks, and uses the form of the
+ %% argument tuple constructed below.
ReqT = {Pkt, AppT, Ack, TPid, Dict0, RecvData},
apply(M, F, [ReqT | A]);