From 312367665ad4e280df36c5f47b114ed680abc3eb Mon Sep 17 00:00:00 2001
From: Florian Fainelli <florian@openwrt.org>
Date: Mon, 1 Feb 2016 01:06:39 +0000
Subject: [PATCH] buildroot: add options to build the kernel for NFS boot

Add the basic set of kernel options to allow it from mounting a NFS root
and boot from it.

Signed-off-by: Florian Fainelli <florian@openwrt.org>

SVN-Revision: 48590
---
 config/Config-kernel.in | 34 ++++++++++++++++++++++++++++++++++
 1 file changed, 34 insertions(+)

diff --git a/config/Config-kernel.in b/config/Config-kernel.in
index c93bbde511a..8ea11ed4d1f 100644
--- a/config/Config-kernel.in
+++ b/config/Config-kernel.in
@@ -590,3 +590,37 @@ if KERNEL_IPV6
 		def_bool n
 
 endif
+
+#
+# NFS related symbols
+#
+config KERNEL_IP_PNP
+	bool "Compile the kernel with rootfs on NFS"
+	help
+	   If you want to make your kernel boot off a NFS server as root
+	   filesystem, select Y here.
+
+if KERNEL_IP_PNP
+
+	config KERNEL_IP_PNP_DHCP
+		def_bool y
+
+	config KERNEL_IP_PNP_BOOTP
+		def_bool n
+
+	config KERNEL_IP_PNP_RARP
+		def_bool n
+
+	config KERNEL_NFS_FS
+		def_bool y
+
+	config KERNEL_NFS_V2
+		def_bool y
+
+	config KERNEL_NFS_V3
+		def_bool y
+
+	config KERNEL_ROOT_NFS
+		def_bool y
+
+endif