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>

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>
Pankaj Bansal · Priyanka Jain
1 parent 29a6617ada
Showing 1 changed file with 3 additions and 1 deletions Side-by-side Diff
arch/arm/cpu/armv8/fsl-layerscape/cpu.c
 // SPDX-License-Identifier: GPL-2.0+
 /*
- * Copyright 2017 NXP
+ * Copyright 2017-2019 NXP
  * Copyright 2014-2015 Freescale Semiconductor, Inc.
  */
  
@@ -1072,6 +1072,8 @@
  
 	if (env_get_f("hwconfig", buffer, sizeof(buffer)) > 0)
 		buf = buffer;
+	else
+		return;
  
 	prefetch_arg = hwconfig_subarg_f("core_prefetch", "disable",
 					 &arglen, buf);
1	1	// SPDX-License-Identifier: GPL-2.0+
2	2	/*
3		- * Copyright 2017 NXP
	3	+ * Copyright 2017-2019 NXP
4	4	* Copyright 2014-2015 Freescale Semiconductor, Inc.
5	5	*/
6	6
...	...	@@ -1072,6 +1072,8 @@
1072	1072
1073	1073	if (env_get_f("hwconfig", buffer, sizeof(buffer)) > 0)
1074	1074	buf = buffer;
	1075	+ else
	1076	+ return;
1075	1077
1076	1078	prefetch_arg = hwconfig_subarg_f("core_prefetch", "disable",
1077	1079	&arglen, buf);