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 --- arch/arm/cpu/armv8/fsl-layerscape/cpu.c | 2 ++ 1 file changed, 2 insertions(+)

diff --git a/arch/arm/cpu/armv8/fsl-layerscape/cpu.c b/arch/arm/cpu/armv8/fsl-layerscape/cpu.c index dee96afe2d..46e4b290ad 100644 --- a/arch/arm/cpu/armv8/fsl-layerscape/cpu.c +++ b/arch/arm/cpu/armv8/fsl-layerscape/cpu.c @@ -1065,6 +1065,8 @@ 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);