linux-kernel - [PATCH] [BUGFIX] Fix build error caused by an undefinition of the kvm_write_tsc_offset tracepoint for x86

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Message-ID: <20130625101641.29672.13013.stgit@yunodevel>
Date:	Tue, 25 Jun 2013 19:16:41 +0900
From:	Yoshihiro YUNOMAE <yoshihiro.yunomae.ez@...achi.com>
To:	Gleb Natapov <gleb@...hat.com>
Cc:	"H. Peter Anvin" <hpa@...or.com>, David Sharp <dhsharp@...gle.com>,
	Marcelo Tosatti <mtosatti@...hat.com>,
	linux-kernel@...r.kernel.org, Steven Rostedt <rostedt@...dmis.org>,
	Hidehiro Kawai <hidehiro.kawai.ez@...achi.com>,
	Ingo Molnar <mingo@...hat.com>, yrl.pp-manager.tt@...achi.com,
	Masami Hiramatsu <masami.hiramatsu.pt@...achi.com>,
	Paolo Bonzini <pbonzini@...hat.com>,
	Thomas Gleixner <tglx@...utronix.de>,
	Joerg Roedel <joro@...tes.org>
Subject: [PATCH] [BUGFIX] Fix build error caused by an undefinition of the
 kvm_write_tsc_offset tracepoint for x86_32

Fix build error caused by an undefinition of the kvm_write_tsc_offset
tracepoint for x86_32.
Since the tracepoint in trace.h was defined for CONFIG_X86_64, kernel build
on i386 was failed.

Signed-off-by: Yoshihiro YUNOMAE <yoshihiro.yunomae.ez@...achi.com>
Cc: Joerg Roedel <joro@...tes.org>
Cc: Gleb Natapov <gleb@...hat.com>
Cc: Paolo Bonzini <pbonzini@...hat.com>
Cc: Thomas Gleixner <tglx@...utronix.de>
Cc: Ingo Molnar <mingo@...hat.com>
Cc: "H. Peter Anvin" <hpa@...or.com>
---
 arch/x86/kvm/trace.h |   42 +++++++++++++++++++++---------------------
 1 file changed, 21 insertions(+), 21 deletions(-)

diff --git a/arch/x86/kvm/trace.h b/arch/x86/kvm/trace.h
index 6c82cf1..545245d 100644
--- a/arch/x86/kvm/trace.h
+++ b/arch/x86/kvm/trace.h
@@ -756,6 +756,27 @@ TRACE_EVENT(
 		  __entry->gpa_match ? "GPA" : "GVA")
 );
 
+TRACE_EVENT(kvm_write_tsc_offset,
+	TP_PROTO(unsigned int vcpu_id, __u64 previous_tsc_offset,
+		 __u64 next_tsc_offset),
+	TP_ARGS(vcpu_id, previous_tsc_offset, next_tsc_offset),
+
+	TP_STRUCT__entry(
+		__field( unsigned int,	vcpu_id				)
+		__field(	__u64,	previous_tsc_offset		)
+		__field(	__u64,	next_tsc_offset			)
+	),
+
+	TP_fast_assign(
+		__entry->vcpu_id		= vcpu_id;
+		__entry->previous_tsc_offset	= previous_tsc_offset;
+		__entry->next_tsc_offset	= next_tsc_offset;
+	),
+
+	TP_printk("vcpu=%u prev=%llu next=%llu", __entry->vcpu_id,
+		  __entry->previous_tsc_offset, __entry->next_tsc_offset)
+);
+
 #ifdef CONFIG_X86_64
 
 #define host_clocks					\
@@ -815,27 +836,6 @@ TRACE_EVENT(kvm_track_tsc,
 		  __print_symbolic(__entry->host_clock, host_clocks))
 );
 
-TRACE_EVENT(kvm_write_tsc_offset,
-	TP_PROTO(unsigned int vcpu_id, __u64 previous_tsc_offset,
-		 __u64 next_tsc_offset),
-	TP_ARGS(vcpu_id, previous_tsc_offset, next_tsc_offset),
-
-	TP_STRUCT__entry(
-		__field( unsigned int,	vcpu_id				)
-		__field(	__u64,	previous_tsc_offset		)
-		__field(	__u64,	next_tsc_offset			)
-	),
-
-	TP_fast_assign(
-		__entry->vcpu_id		= vcpu_id;
-		__entry->previous_tsc_offset	= previous_tsc_offset;
-		__entry->next_tsc_offset	= next_tsc_offset;
-	),
-
-	TP_printk("vcpu=%u prev=%llu next=%llu", __entry->vcpu_id,
-		  __entry->previous_tsc_offset, __entry->next_tsc_offset)
-);
-
 #endif /* CONFIG_X86_64 */
 
 #endif /* _TRACE_KVM_H */

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