linux-kernel - [PATCH 3.2 131/164] powerpc: Make logical to real cpu mapping code endian safe

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Date:	Sun, 02 Aug 2015 01:02:37 +0100
From:	Ben Hutchings <ben@...adent.org.uk>
To:	linux-kernel@...r.kernel.org, stable@...r.kernel.org
CC:	akpm@...ux-foundation.org,
	"Roopa Prabhu" <roopa@...ulusnetworks.com>,
	"Benjamin Herrenschmidt" <benh@...nel.crashing.org>,
	"Andy Gospodarek" <gospo@...ulusnetworks.com>,
	"Jonathan Toppins" <jtoppins@...ulusnetworks.com>,
	"Curt Brune" <curt@...ulusnetworks.com>,
	"Anton Blanchard" <anton@...ba.org>
Subject: [PATCH 3.2 131/164] powerpc: Make logical to real cpu mapping
 code  endian safe

3.2.70-rc1 review patch.  If anyone has any objections, please let me know.

------------------

From: Anton Blanchard <anton@...ba.org>

commit ac13282dff13cd0f4da0f0ccb134bc29bfa10255 upstream.

Signed-off-by: Anton Blanchard <anton@...ba.org>
Signed-off-by: Benjamin Herrenschmidt <benh@...nel.crashing.org>
[jt: fixed up context due to commit 59a53afe70fd530040bdc69581f03d880157f15a
     already being backported.]
Signed-off-by: Jonathan Toppins <jtoppins@...ulusnetworks.com>
Reviewed-by: Andy Gospodarek <gospo@...ulusnetworks.com>
Acked-by: Curt Brune <curt@...ulusnetworks.com>
Acked-by: Roopa Prabhu <roopa@...ulusnetworks.com>
Signed-off-by: Ben Hutchings <ben@...adent.org.uk>
---
 arch/powerpc/kernel/setup-common.c | 6 +++---
 1 file changed, 3 insertions(+), 3 deletions(-)

diff --git a/arch/powerpc/kernel/setup-common.c b/arch/powerpc/kernel/setup-common.c
index 82288e9..675cbcf 100644
--- a/arch/powerpc/kernel/setup-common.c
+++ b/arch/powerpc/kernel/setup-common.c
@@ -428,7 +428,7 @@ void __init smp_setup_cpu_maps(void)
 	DBG("smp_setup_cpu_maps()\n");
 
 	while ((dn = of_find_node_by_type(dn, "cpu")) && cpu < nr_cpu_ids) {
-		const int *intserv;
+		const __be32 *intserv;
 		int j, len;
 
 		DBG("  * %s...\n", dn->full_name);
@@ -448,9 +448,9 @@ void __init smp_setup_cpu_maps(void)
 
 		for (j = 0; j < nthreads && cpu < nr_cpu_ids; j++) {
 			DBG("    thread %d -> cpu %d (hard id %d)\n",
-			    j, cpu, intserv[j]);
+			    j, cpu, be32_to_cpu(intserv[j]));
 			set_cpu_present(cpu, of_device_is_available(dn));
-			set_hard_smp_processor_id(cpu, intserv[j]);
+			set_hard_smp_processor_id(cpu, be32_to_cpu(intserv[j]));
 			set_cpu_possible(cpu, true);
 			cpu++;
 		}

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