Modify the custom parameter parsing routines in:
xen/arch/x86/cpu/mcheck/mce.c
to indicate whether the parameter value was parsed successfully.
Cc: Jan Beulich <jbeul...@suse.com>
Cc: Andrew Cooper <andrew.coop...@citrix.com>
Signed-off-by: Juergen Gross <jgr...@suse.com>
Acked-by: Wei Liu <wei.l...@citrix.com>
Acked-by: Jan Beulich <jbeul...@suse.com>
---
xen/arch/x86/cpu/mcheck/mce.c | 7 ++++++-
1 file changed, 6 insertions(+), 1 deletion(-)
diff --git a/xen/arch/x86/cpu/mcheck/mce.c b/xen/arch/x86/cpu/mcheck/mce.c
index 30525dd78b..8015dff8c4 100644
--- a/xen/arch/x86/cpu/mcheck/mce.c
+++ b/xen/arch/x86/cpu/mcheck/mce.c
@@ -62,13 +62,18 @@ struct mca_banks *mca_allbanks;
#endif
int mce_verbosity;
-static void __init mce_set_verbosity(char *str)
+static int __init mce_set_verbosity(const char *str)
{
if (strcmp("verbose", str) == 0)
mce_verbosity = MCE_VERBOSE;
else
+ {
printk(KERN_DEBUG "Machine Check verbosity level %s not recognised"
"use mce_verbosity=verbose", str);
+ return -EINVAL;
+ }
+
+ return 0;
}
custom_param("mce_verbosity", mce_set_verbosity);
--
2.12.3
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