xen: simplify evtchn_do_upcall() call maze

There are several functions involved for performing the functionality
of evtchn_do_upcall():

- __xen_evtchn_do_upcall() doing the real work
- xen_hvm_evtchn_do_upcall() just being a wrapper for
  __xen_evtchn_do_upcall(), exposed for external callers
- xen_evtchn_do_upcall() calling __xen_evtchn_do_upcall(), too, but
  without any user

Simplify this maze by:

- removing the unused xen_evtchn_do_upcall()
- removing xen_hvm_evtchn_do_upcall() as the only left caller of
  __xen_evtchn_do_upcall(), while renaming __xen_evtchn_do_upcall() to
  xen_evtchn_do_upcall()

Signed-off-by: Juergen Gross <jgross@suse.com>
Reviewed-by: Boris Ostrovsky <boris.ostrovsky@oracle.com>
Reviewed-by: Thomas Gleixner <tglx@linutronix.de>
Signed-off-by: Juergen Gross <jgross@suse.com>

1 files changed, 1 insertions, 2 deletions

diff --git a/include/xen/events.h b/include/xen/events.h
index 95d5e28de324..23932b0673dc 100644
--- a/include/xen/events.h
+++ b/include/xen/events.h
@@ -105,8 +105,7 @@ int irq_from_virq(unsigned int cpu, unsigned int virq);
 evtchn_port_t evtchn_from_irq(unsigned irq);
 
 int xen_set_callback_via(uint64_t via);
-void xen_evtchn_do_upcall(struct pt_regs *regs);
-int xen_hvm_evtchn_do_upcall(void);
+int xen_evtchn_do_upcall(void);
 
 /* Bind a pirq for a physical interrupt to an irq. */
 int xen_bind_pirq_gsi_to_irq(unsigned gsi,