linux-kernel - [PATCH] kmemtrace: fix build when CONFIG

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Date:	Tue, 24 Mar 2009 12:17:38 +0200
From:	Pekka Enberg <penberg@...helsinki.fi>
To:	mingo@...e.hu
Cc:	eduard.munteanu@...ux360.ro, linux-kernel@...r.kernel.org
Subject: [PATCH] kmemtrace: fix build when CONFIG_KMEMTRACE is disabled

From: Pekka Enberg <penberg@...helsinki.fi>

Impact: fix build

This patch fixes the following allnoconfig failure:

  init/built-in.o: In function `start_kernel':
  (.init.text+0x669): undefined reference to `kmemtrace_init'

Cc: Eduard - Gabriel Munteanu <eduard.munteanu@...ux360.ro>
Signed-off-by: Pekka Enberg <penberg@...helsinki.fi>
---
 include/trace/kmemtrace.h |    6 ++++++
 1 files changed, 6 insertions(+), 0 deletions(-)

diff --git a/include/trace/kmemtrace.h b/include/trace/kmemtrace.h
index 7514476..28ee69f 100644
--- a/include/trace/kmemtrace.h
+++ b/include/trace/kmemtrace.h
@@ -12,7 +12,13 @@
 #include <linux/tracepoint.h>
 #include <linux/types.h>
 
+#ifdef CONFIG_KMEMTRACE
 extern void kmemtrace_init(void);
+#else
+static inline void kmemtrace_init(void)
+{
+}
+#endif
 
 DECLARE_TRACE(kmalloc,
 	      TP_PROTO(unsigned long call_site,
-- 
1.5.4.3



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