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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>
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@ -1,6 +1,6 @@
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// SPDX-License-Identifier: GPL-2.0+
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/*
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* Copyright 2017 NXP
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* Copyright 2017-2019 NXP
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* Copyright 2014-2015 Freescale Semiconductor, Inc.
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*/
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@ -1072,6 +1072,8 @@ static void config_core_prefetch(void)
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if (env_get_f("hwconfig", buffer, sizeof(buffer)) > 0)
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buf = buffer;
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else
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return;
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prefetch_arg = hwconfig_subarg_f("core_prefetch", "disable",
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&arglen, buf);
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