[Xen-devel] [PATCH] notify_via_evtchn returning int

[Stefan Berger <stefanb@xxxxxxxxxx>]

Below is the patch that returns an 'int' from the notify_via_evtchn() 
call.

Signed-off-by: Stefan Berger <stefanb@xxxxxxxxxx>

--- 
/xen/tmp/xeno-unstable.bk/linux-2.6.11-xen-sparse/include/asm-xen/evtchn.h 
         2005-03-31 16:17:04.000000000 -0500
+++ linux-2.6.11-xen-sparse/include/asm-xen/evtchn.h 2005-04-15 
13:19:14.358768869 -0400
@@ -80,12 +80,12 @@
     synch_clear_bit(port, &s->evtchn_pending[0]);
 }
 
-static inline void notify_via_evtchn(int port)
+static inline int notify_via_evtchn(int port)
 {
     evtchn_op_t op;
     op.cmd = EVTCHNOP_send;
     op.u.send.local_port = port;
-    (void)HYPERVISOR_event_channel_op(&op);
+    return HYPERVISOR_event_channel_op(&op);
 }
 
 /*

xen-devel-bounces@xxxxxxxxxxxxxxxxxxx wrote on 04/15/2005 01:12:44 PM:

> >   The function 
> > include/asm-xen/evtchn.h:notify_via_evtchn(int) currently has 
> > a 'void' as return, however, there are useful error values 
> > coming back from the Hypervisor call. Would it be possible to 
> > have this value return an 'int' and the result of the 
> > Hypervisor call? Thanks.
> 
> Yep, EINVAL is a possibility. Could you work up a patch?
> 
> Thanks,
> Ian 
> 
> _______________________________________________
> Xen-devel mailing list
> Xen-devel@xxxxxxxxxxxxxxxxxxx
> http://lists.xensource.com/xen-devel


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