From: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Date: Mon, 23 Sep 2013 02:05:00 +0000 (+1000)
Subject: powerpc/powernv: Make OPAL NVRAM device tree accesses endian safe
X-Git-Tag: v4.9.8~7392^2~97
X-Git-Url: http://review.tizen.org/git/?a=commitdiff_plain;h=81063cdd61795f0db85725bae4945d0762269e04;p=platform%2Fkernel%2Flinux-rpi3.git

powerpc/powernv: Make OPAL NVRAM device tree accesses endian safe

Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
---

diff --git a/arch/powerpc/platforms/powernv/opal-nvram.c b/arch/powerpc/platforms/powernv/opal-nvram.c
index 3f83e1a..acd9f7e 100644
--- a/arch/powerpc/platforms/powernv/opal-nvram.c
+++ b/arch/powerpc/platforms/powernv/opal-nvram.c
@@ -65,7 +65,7 @@ static ssize_t opal_nvram_write(char *buf, size_t count, loff_t *index)
 void __init opal_nvram_init(void)
 {
 	struct device_node *np;
-	const u32 *nbytes_p;
+	const __be32 *nbytes_p;
 
 	np = of_find_compatible_node(NULL, NULL, "ibm,opal-nvram");
 	if (np == NULL)
@@ -76,7 +76,7 @@ void __init opal_nvram_init(void)
 		of_node_put(np);
 		return;
 	}
-	nvram_size = *nbytes_p;
+	nvram_size = be32_to_cpup(nbytes_p);
 
 	printk(KERN_INFO "OPAL nvram setup, %u bytes\n", nvram_size);
 	of_node_put(np);