From cec4e9b28ffbcb9ce04b9e33946c505e5ad7a295 Mon Sep 17 00:00:00 2001
From: "Aneesh Kumar K.V" <aneesh.kumar@linux.vnet.ibm.com>
Date: Fri, 30 Mar 2018 17:39:01 +0530
Subject: [PATCH] powerpc/mm/radix: Parse disable_radix commandline correctly.
References: bsc#1055186, fate#323286
Patch-mainline: v4.17-rc1
Git-commit: cec4e9b28ffbcb9ce04b9e33946c505e5ad7a295
kernel parameter disable_radix takes different options
disable_radix=yes|no|1|0 or just disable_radix. When using the later
format we get below error.
`Malformed early option 'disable_radix'`
Fixes: 1fd6c0220710 ("powerpc/mm: Add a CONFIG option to choose if radix is used by default")
Signed-off-by: Aneesh Kumar K.V <aneesh.kumar@linux.vnet.ibm.com>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Acked-by: Michal Suchanek <msuchanek@suse.de>
---
arch/powerpc/mm/init_64.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/arch/powerpc/mm/init_64.c b/arch/powerpc/mm/init_64.c
index 63470b06c502..51ce091914f9 100644
--- a/arch/powerpc/mm/init_64.c
+++ b/arch/powerpc/mm/init_64.c
@@ -366,7 +366,7 @@ static int __init parse_disable_radix(char *p)
{
bool val;
- if (strlen(p) == 0)
+ if (!p)
val = true;
else if (kstrtobool(p, &val))
return -EINVAL;
--
2.13.6