From 812ff53c3e0f100aabb45eaea9b71086d00bed66 Mon Sep 17 00:00:00 2001
From: Pankaj Bansal <pankaj.bansal@nxp.com>
Date: Thu, 31 Oct 2019 05:41:09 +0000
Subject: [PATCH] fsl-layerscape: fix warning if no hwconfig is defined
While getting the 'subarg' of 'hwconfig' env variable in
config_core_prefetch(), if no hwconfig variable is defined,
below warning is received:
WARNING: Calling __hwconfig without a buffer and
before environment is ready
Fix this by checking 'hwconfig' env variable.
If not found return without further processing.
Signed-off-by: Pankaj Bansal <pankaj.bansal@nxp.com>
Signed-off-by: Priyanka Jain <priyanka.jain@nxp.com>
Tested-by: Michael Walle <michael@walle.cc>
---
arch/arm/cpu/armv8/fsl-layerscape/cpu.c | 4 +++-
1 file changed, 3 insertions(+), 1 deletion(-)
diff --git a/arch/arm/cpu/armv8/fsl-layerscape/cpu.c b/arch/arm/cpu/armv8/fsl-layerscape/cpu.c
index 1f4c0b29a3..83a3319321 100644
--- a/arch/arm/cpu/armv8/fsl-layerscape/cpu.c
+++ b/arch/arm/cpu/armv8/fsl-layerscape/cpu.c
@@ -1,6 +1,6 @@
// SPDX-License-Identifier: GPL-2.0+
/*
- * Copyright 2017 NXP
+ * Copyright 2017-2019 NXP
* Copyright 2014-2015 Freescale Semiconductor, Inc.
*/
@@ -1072,6 +1072,8 @@ static void config_core_prefetch(void)
if (env_get_f("hwconfig", buffer, sizeof(buffer)) > 0)
buf = buffer;
+ else
+ return;
prefetch_arg = hwconfig_subarg_f("core_prefetch", "disable",
&arglen, buf);
--
2.39.5