buildroot/board/beaglebone/patches/linux/linux-0001-arm-Export-cache-flush-management-symbols-when-MULTI.patch

From 29885f2f3d700341d322274db6ad085e601c0994 Mon Sep 17 00:00:00 2001
From: Pantelis Antoniou <panto@antoniou-consulting.com>
Date: Fri, 4 Jan 2013 00:32:33 +0200
Subject: [PATCH 3/3] arm: Export cache flush management symbols when
 !MULTI_CACHE

When compiling a kernel without CONFIG_MULTI_CACHE enabled the
dma access functions end up not being exported. Fix it.

Signed-off-by: Pantelis Antoniou <panto@antoniou-consulting.com>
---
 arch/arm/kernel/setup.c |    9 +++++++++
 1 file changed, 9 insertions(+)

diff --git a/arch/arm/kernel/setup.c b/arch/arm/kernel/setup.c
index da1d1aa..dcb678c 100644
--- a/arch/arm/kernel/setup.c
+++ b/arch/arm/kernel/setup.c
@@ -923,3 +923,12 @@ const struct seq_operations cpuinfo_op = {
 	.stop	= c_stop,
 	.show	= c_show
 };
+
+/* export the cache management functions */
+#ifndef MULTI_CACHE
+
+EXPORT_SYMBOL(__glue(_CACHE,_dma_map_area));
+EXPORT_SYMBOL(__glue(_CACHE,_dma_unmap_area));
+EXPORT_SYMBOL(__glue(_CACHE,_dma_flush_range));
+
+#endif
-- 
1.7.10.4