From 812ff53c3e0f100aabb45eaea9b71086d00bed66 Mon Sep 17 00:00:00 2001 From: Pankaj Bansal 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 Signed-off-by: Priyanka Jain Tested-by: Michael Walle --- 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); -- 2.25.1