linux-kernel - [PATCH 1/1] powerpc/jump_label: use HAVE_JUMP

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Message-Id: <1408588883-26783-1-git-send-email-yizhouzhou@ict.ac.cn>
Date:	Thu, 21 Aug 2014 10:41:23 +0800
From:	Zhouyi Zhou <zhouzhouyi@...il.com>
To:	<benh@...nel.crashing.org>, <paulus@...ba.org>,
	<mpe@...erman.id.au>, <paulmck@...ux.vnet.ibm.com>,
	<anton@...ba.org>, <aneesh.kumar@...ux.vnet.ibm.com>,
	<jk@...abs.org>, <linuxppc-dev@...ts.ozlabs.org>,
	<linux-kernel@...r.kernel.org>, <jbaron@...mai.com>
Cc:	Zhouyi Zhou <yizhouzhou@....ac.cn>
Subject: [PATCH 1/1] powerpc/jump_label: use HAVE_JUMP_LABEL?  

CONFIG_JUMP_LABEL doesn't ensure HAVE_JUMP_LABEL, if it
is not the case use maintainers's own mutex to guard
the modification of global values.


Signed-off-by: Zhouyi Zhou <yizhouzhou@....ac.cn>
---
 arch/powerpc/platforms/powernv/opal-tracepoints.c |    2 +-
 arch/powerpc/platforms/pseries/lpar.c             |    2 +-
 2 files changed, 2 insertions(+), 2 deletions(-)

diff --git a/arch/powerpc/platforms/powernv/opal-tracepoints.c b/arch/powerpc/platforms/powernv/opal-tracepoints.c
index d8a000a..ae14c40 100644
--- a/arch/powerpc/platforms/powernv/opal-tracepoints.c
+++ b/arch/powerpc/platforms/powernv/opal-tracepoints.c
@@ -2,7 +2,7 @@
 #include <linux/jump_label.h>
 #include <asm/trace.h>
 
-#ifdef CONFIG_JUMP_LABEL
+#ifdef HAVE_JUMP_LABEL
 struct static_key opal_tracepoint_key = STATIC_KEY_INIT;
 
 void opal_tracepoint_regfunc(void)
diff --git a/arch/powerpc/platforms/pseries/lpar.c b/arch/powerpc/platforms/pseries/lpar.c
index 34e6423..059cfe0 100644
--- a/arch/powerpc/platforms/pseries/lpar.c
+++ b/arch/powerpc/platforms/pseries/lpar.c
@@ -642,7 +642,7 @@ EXPORT_SYMBOL(arch_free_page);
 #endif
 
 #ifdef CONFIG_TRACEPOINTS
-#ifdef CONFIG_JUMP_LABEL
+#ifdef HAVE_JUMP_LABEL
 struct static_key hcall_tracepoint_key = STATIC_KEY_INIT;
 
 void hcall_tracepoint_regfunc(void)
-- 
1.7.10.4

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