Modify the custom parameter parsing routines in:
xen/arch/x86/io_apic.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>
---
xen/arch/x86/io_apic.c | 7 ++++++-
1 file changed, 6 insertions(+), 1 deletion(-)
diff --git a/xen/arch/x86/io_apic.c b/xen/arch/x86/io_apic.c
index 2838f6bd99..f790579dbd 100644
--- a/xen/arch/x86/io_apic.c
+++ b/xen/arch/x86/io_apic.c
@@ -1581,7 +1581,7 @@ static unsigned int startup_level_ioapic_irq(struct
irq_desc *desc)
return 0; /* don't check for pending */
}
-static void __init setup_ioapic_ack(char *s)
+static int __init setup_ioapic_ack(char *s)
{
if ( !strcmp(s, "old") )
{
@@ -1594,7 +1594,12 @@ static void __init setup_ioapic_ack(char *s)
ioapic_ack_forced = true;
}
else
+ {
printk("Unknown ioapic_ack value specified: '%s'\n", s);
+ return -EINVAL;
+ }
+
+ return 0;
}
custom_param("ioapic_ack", setup_ioapic_ack);
--
2.12.3
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