fix: add patch to fix building udlfb.ko: fixes: https://github.com/RobertCNelson/linux-dev/issues/7

Signed-off-by: Robert Nelson <robertcnelson@gmail.com>

patch.sh

@@ -130,6 +130,11 @@ mainline_fixes () {
 	#Status:
 	#http://git.kernel.org/?p=linux/kernel/git/tmlind/linux-omap.git;a=shortlog;h=refs/heads/devel-dt
 	${git} "${DIR}/patches/mainline-fixes/0002-ARM-omap-add-dtb-targets.patch"
+
+	#From: https://github.com/RobertCNelson/linux-dev/issues/7
+	#DisplayLink fb driver (udlfb.ko)
+	#Status: https://patchwork.kernel.org/patch/1361471/
+	${git} "${DIR}/patches/mainline-fixes/0003-ARM-export-read_current_timer.patch"
 }
 
 debug () {

patches/defconfig

@@ -3118,7 +3118,7 @@ CONFIG_FB_TILEBLITTING=y
 # CONFIG_FB_S1D13XXX is not set
 # CONFIG_FB_TMIO is not set
 # CONFIG_FB_SMSCUFX is not set
-# CONFIG_FB_UDL is not set
+CONFIG_FB_UDL=m
 # CONFIG_FB_VIRTUAL is not set
 # CONFIG_FB_METRONOME is not set
 # CONFIG_FB_BROADSHEET is not set

patches/mainline-fixes/0003-ARM-export-read_current_timer.patch

+From c9fb6f3d36ca8567c7d8770906f1f7144bdc6b97 Mon Sep 17 00:00:00 2001
+From: Arnd Bergmann <arnd@arndb.de>
+Date: Wed, 22 Aug 2012 14:29:37 +0000
+Subject: [PATCH 3/3] ARM: export read_current_timer
+
+read_current_timer is used in the get_cycles() function when
+ARM_ARCH_TIMER is set, and that function can be inlined into
+driver modules, so we should export the function to avoid
+errors like
+
+ERROR: "read_current_timer" [drivers/video/udlfb.ko] undefined!
+ERROR: "read_current_timer" [crypto/tcrypt.ko] undefined!
+
+Signed-off-by: Arnd Bergmann <arnd@arndb.de>
+Cc: Shinya Kuribayashi <shinya.kuribayashi.px@renesas.com>
+Cc: Stephen Boyd <sboyd@codeaurora.org>
+Cc: Will Deacon <will.deacon@arm.com>
+Cc: Russell King <rmk+kernel@arm.linux.org.uk>
+Acked-by: Stephen Boyd <sboyd@codeaurora.org>
+Acked-by: Will Deacon <will.deacon@arm.com>
+Acked-by: Shinya Kuribayashi <shinya.kuribayashi.px@renesas.com>
+---
+ arch/arm/kernel/arch_timer.c |    2 ++
+ 1 file changed, 2 insertions(+)
+
+diff --git a/arch/arm/kernel/arch_timer.c b/arch/arm/kernel/arch_timer.c
+index cf25880..6327d1f 100644
+--- a/arch/arm/kernel/arch_timer.c
++++ b/arch/arm/kernel/arch_timer.c
+@@ -14,6 +14,7 @@
+ #include <linux/device.h>
+ #include <linux/smp.h>
+ #include <linux/cpu.h>
++#include <linux/export.h>
+ #include <linux/jiffies.h>
+ #include <linux/clockchips.h>
+ #include <linux/interrupt.h>
+@@ -232,6 +233,7 @@ int read_current_timer(unsigned long *timer_val)
+ 	*timer_val = arch_counter_get_cntpct();
+ 	return 0;
+ }
++EXPORT_SYMBOL_GPL(read_current_timer);
+ 
+ static struct clocksource clocksource_counter = {
+ 	.name	= "arch_sys_counter",
+-- 
+1.7.10.4
+

version.sh

@@ -23,7 +23,7 @@ config="omap2plus_defconfig"
 #Kernel/Build
 KERNEL_REL=3.6
 KERNEL_TAG=${KERNEL_REL}-rc7
-BUILD=d4.1
+BUILD=d4.2
 
 #git branch
 #BRANCH=