if no hwconfig variable is defined for a platform and we try to get the subarg of hwconfig, we receive a warning: WARNING: Calling __hwconfig without a buffer and before environment is ready

Therefore, if hwconfig is not found return without further processing.

Signed-off-by: Pankaj Bansal pankaj.bansal@nxp.com ---

Notes: V2: - Add copyright year in file that has been updated

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 8fd6c751c6..b42beca6e1 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);