Author: sephe
Date: Wed Jul 13 05:11:45 2016
New Revision: 302699
URL: https://svnweb.freebsd.org/changeset/base/302699

Log:
  hyperv/vmbus: All ivars are read-only; nuke unnecessary write_ivar
  
  MFC after:    1 week
  Sponsored by: Microsoft OSTC
  Differential Revision:        https://reviews.freebsd.org/D7025

Modified:
  head/sys/dev/hyperv/vmbus/vmbus.c

Modified: head/sys/dev/hyperv/vmbus/vmbus.c
==============================================================================
--- head/sys/dev/hyperv/vmbus/vmbus.c   Wed Jul 13 05:01:12 2016        
(r302698)
+++ head/sys/dev/hyperv/vmbus/vmbus.c   Wed Jul 13 05:11:45 2016        
(r302699)
@@ -983,20 +983,6 @@ vmbus_read_ivar(device_t dev, device_t c
 }
 
 static int
-vmbus_write_ivar(device_t dev, device_t child, int index, uintptr_t value)
-{
-       switch (index) {
-       case HV_VMBUS_IVAR_TYPE:
-       case HV_VMBUS_IVAR_INSTANCE:
-       case HV_VMBUS_IVAR_DEVCTX:
-       case HV_VMBUS_IVAR_NODE:
-               /* read-only */
-               return (EINVAL);
-       }
-       return (ENOENT);
-}
-
-static int
 vmbus_child_pnpinfo_str(device_t dev, device_t child, char *buf, size_t buflen)
 {
        struct hv_device *dev_ctx = device_get_ivars(child);
@@ -1311,7 +1297,6 @@ static device_method_t vmbus_methods[] =
        DEVMETHOD(bus_add_child,                bus_generic_add_child),
        DEVMETHOD(bus_print_child,              bus_generic_print_child),
        DEVMETHOD(bus_read_ivar,                vmbus_read_ivar),
-       DEVMETHOD(bus_write_ivar,               vmbus_write_ivar),
        DEVMETHOD(bus_child_pnpinfo_str,        vmbus_child_pnpinfo_str),
 
        /* Vmbus interface */
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