Modify the custom parameter parsing routines in:
xen/arch/x86/time.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>
---
xen/arch/x86/time.c | 6 +++++-
1 file changed, 5 insertions(+), 1 deletion(-)
diff --git a/xen/arch/x86/time.c b/xen/arch/x86/time.c
index b988b94d2e..eba7aed72d 100644
--- a/xen/arch/x86/time.c
+++ b/xen/arch/x86/time.c
@@ -1870,7 +1870,7 @@ int hwdom_pit_access(struct ioreq *ioreq)
* tsc=skewed: Assume TSCs are individually reliable, but skewed across CPUs.
* tsc=stable:socket: Assume TSCs are reliable across sockets.
*/
-static void __init tsc_parse(const char *s)
+static int __init tsc_parse(const char *s)
{
if ( !strcmp(s, "unstable") )
{
@@ -1882,6 +1882,10 @@ static void __init tsc_parse(const char *s)
setup_clear_cpu_cap(X86_FEATURE_TSC_RELIABLE);
else if ( !strcmp(s, "stable:socket") )
tsc_flags |= TSC_RELIABLE_SOCKET;
+ else
+ return -EINVAL;
+
+ return 0;
}
custom_param("tsc", tsc_parse);
--
2.12.3
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