linux-kernel - Re: linux-next: build failure after merge of the kvm-ppc tree

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Date:	Tue, 05 Aug 2014 11:19:22 +0200
From:	Paolo Bonzini <pbonzini@...hat.com>
To:	Stephen Rothwell <sfr@...b.auug.org.au>,
	Alexander Graf <agraf@...e.de>
CC:	linux-next@...r.kernel.org, linux-kernel@...r.kernel.org
Subject: Re: linux-next: build failure after merge of the kvm-ppc tree

Il 04/08/2014 12:36, Stephen Rothwell ha scritto:
> Hi Alexander,
> 
> After merging the kvm-ppc tree, today's linux-next build (powerpc
> allyesconfig) failed like this:
> 
> arch/powerpc/kvm/kvm-pr.o:(__tracepoints+0xa8): multiple definition of `__tracepoint_kvm_ppc_instr'
> arch/powerpc/kvm/kvm.o:(__tracepoints+0x1c0): first defined here
> 
> Caused by commit 29577fc00ba4 ("KVM: PPC: HV: Remove generic
> instruction emulation").  I note that this commit has no Reviewed-by,
> Tested-by or Acked-by tags and only one Signed-off-by tag.
> 
> I have reverted that commit for today.

Thanks for the heads up.  I will apply this, and wait for tomorrow's
linux-next build before sending the result to Linus:

diff --git a/arch/powerpc/kvm/trace_pr.h b/arch/powerpc/kvm/trace_pr.h
index a674f090dfb8..e1357cd8dc1f 100644
--- a/arch/powerpc/kvm/trace_pr.h
+++ b/arch/powerpc/kvm/trace_pr.h
@@ -291,26 +291,6 @@ TRACE_EVENT(kvm_unmap_hva,
 	TP_printk("unmap hva 0x%lx\n", __entry->hva)
 );
 
-TRACE_EVENT(kvm_ppc_instr,
-	TP_PROTO(unsigned int inst, unsigned long _pc, unsigned int emulate),
-	TP_ARGS(inst, _pc, emulate),
-
-	TP_STRUCT__entry(
-		__field(	unsigned int,	inst		)
-		__field(	unsigned long,	pc		)
-		__field(	unsigned int,	emulate		)
-	),
-
-	TP_fast_assign(
-		__entry->inst		= inst;
-		__entry->pc		= _pc;
-		__entry->emulate	= emulate;
-	),
-
-	TP_printk("inst %u pc 0x%lx emulate %u\n",
-		  __entry->inst, __entry->pc, __entry->emulate)
-);
-
 #endif /* _TRACE_KVM_H */
 
 /* This part must be outside protection */


Paolo
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