[GIT PULL] Fix compile error when tracing is disabled

[Jeremy Fitzhardinge]

Hi Linus,

Please pull this to fix compilation when tracing is disabled.

Thanks,
    J

The following changes since commit 55f9c40ff632d03c527d6a6ceddcda0a224587a6:

  Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/sparc (2011-07-28 05:59:19 -0700)

are available in the git repository at:

  git://git.kernel.org/pub/scm/linux/kernel/git/jeremy/xen.git upstream/xen-tracing2

Jeremy Fitzhardinge (1):
      xen/tracing: fix compile errors when tracing is disabled.

 arch/x86/xen/Makefile      |    4 +++-
 include/trace/events/xen.h |    2 ++
 2 files changed, 5 insertions(+), 1 deletions(-)

diff --git a/arch/x86/xen/Makefile b/arch/x86/xen/Makefile
index 6fdf366..ce69201 100644
--- a/arch/x86/xen/Makefile
+++ b/arch/x86/xen/Makefile
@@ -13,7 +13,9 @@ CFLAGS_mmu.o			:= $(nostackp)
 obj-y		:= enlighten.o setup.o multicalls.o mmu.o irq.o \
 			time.o xen-asm.o xen-asm_$(BITS).o \
 			grant-table.o suspend.o platform-pci-unplug.o \
-			p2m.o trace.o
+			p2m.o
+
+obj-$(CONFIG_FUNCTION_TRACER) += trace.o
 
 obj-$(CONFIG_SMP)		+= smp.o
 obj-$(CONFIG_PARAVIRT_SPINLOCKS)+= spinlock.o
diff --git a/include/trace/events/xen.h b/include/trace/events/xen.h
index 44d8dec..92f1a79 100644
--- a/include/trace/events/xen.h
+++ b/include/trace/events/xen.h
@@ -8,6 +8,8 @@
 #include <asm/paravirt_types.h>
 #include <asm/xen/trace_types.h>
 
+struct multicall_entry;
+
 /* Multicalls */
 DECLARE_EVENT_CLASS(xen_mc__batch,
 	    TP_PROTO(enum paravirt_lazy_mode mode),


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