From 637fd9c6bbd320ab000fe5ef3689d87e308dc2c9 Mon Sep 17 00:00:00 2001
From: Gregory Nutt <gnutt@nuttx.org>
Date: Tue, 10 Feb 2015 06:25:55 -0600
Subject: IOB Configuration:  Default number of IOB changes must be more than
 zero is UDP read-ahead is enabled.

---
 nuttx/net/iob/Kconfig | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/nuttx/net/iob/Kconfig b/nuttx/net/iob/Kconfig
index 4d817205c..7b34185ab 100644
--- a/nuttx/net/iob/Kconfig
+++ b/nuttx/net/iob/Kconfig
@@ -34,8 +34,8 @@ config IOB_BUFSIZE
 
 config IOB_NCHAINS
 	int "Number of pre-allocated I/O buffer chain heads"
-	default 0 if !NET_TCP_READAHEAD
-	default 8 if NET_TCP_READAHEAD
+	default 0 if !NET_TCP_READAHEAD && !NET_UDP_READAHEAD
+	default 8 if NET_TCP_READAHEAD || NET_UDP_READAHEAD
 	---help---
 		These tiny nodes are used as "containers" to support queueing of
 		I/O buffer chains.  This will limit the number of I/O transactions
-- 
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