[Xen-devel] [netchannel2] nc2_unmap_grants definition conflict?

["Fischer, Anna" <anna.fischer@xxxxxx>]

There seems to be a conflict with nc2_unmap_grants() when both 
CONFIG_XEN_TEST_PINGBACK2 and CONFIG_XEN_NETDEV2_BACKEND are set. I get the 
following error when building the current Xen netchannel2 tree:

  CC      drivers/xen/test/pingback2/pingback2.o
  LD      drivers/xen/test/pingback2/built-in.o
  CC      drivers/xen/test/pingfront/pingfront.o
  LD      drivers/xen/test/pingfront/built-in.o
  CC      drivers/xen/test/pingfront2/pingfront2.o
  LD      drivers/xen/test/pingfront2/built-in.o
  CC      drivers/xen/test/dummy.o
  LD      drivers/xen/test/built-in.o
  LD      drivers/xen/tpmback/built-in.o
  CC      drivers/xen/xenbus/xenbus_client.o
  CC      drivers/xen/xenbus/xenbus_comms.o
  CC      drivers/xen/xenbus/xenbus_xs.o
  CC      drivers/xen/xenbus/xenbus_probe.o
  CC      drivers/xen/xenbus/xenbus_backend_client.o
  LD      drivers/xen/xenbus/xenbus_be.o
  CC      drivers/xen/xenbus/xenbus_probe_backend.o
  CC      drivers/xen/xenbus/xenbus_dev.o
  LD      drivers/xen/xenbus/built-in.o
  CC      drivers/xen/util.o
  LD      drivers/xen/built-in.o
drivers/xen/netchannel2/built-in.o: In function `nc2_unmap_grants':
/home/user/Download/netchannel2/linux-2.6.18.hg/drivers/xen/netchannel2/util.c:448:
 multiple definition of `nc2_unmap_grants'
drivers/xen/test/built-in.o:/home/user/Download/netchannel2/linux-2.6.18.hg/drivers/xen/test/pingback2/pingback2.c:31:
 first defined here
make[6]: *** [drivers/xen/built-in.o] Error 1
make[5]: *** [drivers/xen] Error 2
make[4]: *** [drivers] Error 2
make[3]: *** [vmlinuz] Error 2
make[2]: *** [vmlinuz] Error 2
make[2]: Leaving directory 
`/home/user/Download/netchannel2/xen-unstable.hg/build-linux-2.6.18-xen_x86_32'


Defining it as static like you do with nc2_map_grants() should work?


diff -r 2245f3375e95 drivers/xen/test/pingback2/pingback2.c
--- a/drivers/xen/test/pingback2/pingback2.c    Tue Mar 03 17:53:47 2009 +0000
+++ b/drivers/xen/test/pingback2/pingback2.c    Sun Mar 15 06:22:59 2009 -0700
@@ -27,7 +27,7 @@ struct pingback2_info {
         unsigned irq;
 };

-void nc2_unmap_grants(struct grant_mapping *gm)
+static void nc2_unmap_grants(struct grant_mapping *gm)
 {
         struct gnttab_unmap_grant_ref op[MAX_GRANT_MAP_PAGES];
         int i;

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