linux-kernel - [tip:x86/urgent] x86: devicetree: Add missing early_init_dt_setup_initrd

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Message-ID: <tip-977cb76d52e7aa040e18a84b29fe6fd80d79319b@git.kernel.org>
Date:	Thu, 9 Jun 2011 13:43:04 GMT
From:	tip-bot for Florian Fainelli <ffainelli@...ebox.fr>
To:	linux-tip-commits@...r.kernel.org
Cc:	linux-kernel@...r.kernel.org, grant.likely@...retlab.ca,
	hpa@...or.com, mingo@...hat.com, mbizon@...ebox.fr,
	tglx@...utronix.de, sebastian@...akpoint.cc, ffainelli@...ebox.fr
Subject: [tip:x86/urgent] x86: devicetree: Add missing early_init_dt_setup_initrd_arch stub

Commit-ID:  977cb76d52e7aa040e18a84b29fe6fd80d79319b
Gitweb:     http://git.kernel.org/tip/977cb76d52e7aa040e18a84b29fe6fd80d79319b
Author:     Florian Fainelli <ffainelli@...ebox.fr>
AuthorDate: Mon, 6 Jun 2011 10:15:49 +0200
Committer:  Thomas Gleixner <tglx@...utronix.de>
CommitDate: Thu, 9 Jun 2011 15:39:43 +0200

x86: devicetree: Add missing early_init_dt_setup_initrd_arch stub

This patch fixes the following build failure:

drivers/built-in.o: In function `early_init_dt_check_for_initrd':
/home/florian/dev/kernel/x86/linux-2.6-x86/drivers/of/fdt.c:571:
undefined reference to `early_init_dt_setup_initrd_arch'
make: *** [.tmp_vmlinux1] Error 1

which happens as soon as we enable initrd support on a x86 devicetree
platform such as Intel CE4100.

Signed-off-by: Florian Fainelli <ffainelli@...ebox.fr>
Acked-by: Grant Likely <grant.likely@...retlab.ca>
Cc: Maxime Bizon <mbizon@...ebox.fr>
Acked-by: Sebastian Andrzej Siewior <sebastian@...akpoint.cc>
Cc: stable@...nel.org # 2.6.39
Link: http://lkml.kernel.org/r/201106061015.50039.ffainelli@freebox.fr
Signed-off-by: Thomas Gleixner <tglx@...utronix.de>
---
 arch/x86/kernel/devicetree.c |   11 +++++++++++
 1 files changed, 11 insertions(+), 0 deletions(-)

diff --git a/arch/x86/kernel/devicetree.c b/arch/x86/kernel/devicetree.c
index 690bc84..9aeb78a 100644
--- a/arch/x86/kernel/devicetree.c
+++ b/arch/x86/kernel/devicetree.c
@@ -13,6 +13,7 @@
 #include <linux/slab.h>
 #include <linux/pci.h>
 #include <linux/of_pci.h>
+#include <linux/initrd.h>
 
 #include <asm/hpet.h>
 #include <asm/irq_controller.h>
@@ -98,6 +99,16 @@ void * __init early_init_dt_alloc_memory_arch(u64 size, u64 align)
 	return __alloc_bootmem(size, align, __pa(MAX_DMA_ADDRESS));
 }
 
+#ifdef CONFIG_BLK_DEV_INITRD
+void __init early_init_dt_setup_initrd_arch(unsigned long start,
+					    unsigned long end)
+{
+	initrd_start = (unsigned long)__va(start);
+	initrd_end = (unsigned long)__va(end);
+	initrd_below_start_ok = 1;
+}
+#endif
+
 void __init add_dtb(u64 data)
 {
 	initial_dtb = data + offsetof(struct setup_data, data);
--
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