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-rw-r--r--Documentation/networking/dccp.txt2
1 files changed, 2 insertions, 0 deletions
diff --git a/Documentation/networking/dccp.txt b/Documentation/networking/dccp.txt
index afb66f9a8aff..f771034e8f27 100644
--- a/Documentation/networking/dccp.txt
+++ b/Documentation/networking/dccp.txt
@@ -72,6 +72,8 @@ DCCP_SOCKOPT_CCID_TX_INFO
Returns a `struct tfrc_tx_info' in optval; the buffer for optval and
optlen must be set to at least sizeof(struct tfrc_tx_info).
+On unidirectional connections it is useful to close the unused half-connection
+via shutdown (SHUT_WR or SHUT_RD): this will reduce per-packet processing costs.
Sysctl variables
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