linux-kernel - [PATCH] alternatives/paravirt: use NULL for pointers

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Date:	Wed, 29 Nov 2006 13:17:08 -0800
From:	Randy Dunlap <randy.dunlap@...cle.com>
To:	lkml <linux-kernel@...r.kernel.org>
Cc:	ak@...e.de, akpm <akpm@...l.org>
Subject: [PATCH] alternatives/paravirt: use NULL for pointers

From: Randy Dunlap <randy.dunlap@...cle.com>

Use NULL instead of 0 for pointers.

arch/x86_64/kernel/../../i386/kernel/alternative.c:432:18: warning: Using plain integer as NULL pointer
arch/x86_64/kernel/../../i386/kernel/alternative.c:432:44: warning: Using plain integer as NULL pointer

Signed-off-by: Randy Dunlap <randy.dunlap@...cle.com>
---
 include/asm-i386/alternative.h   |    5 +++--
 include/asm-x86_64/alternative.h |    5 +++--
 2 files changed, 6 insertions(+), 4 deletions(-)

--- linux-2.6.19-rc6-mm2.orig/include/asm-i386/alternative.h
+++ linux-2.6.19-rc6-mm2/include/asm-i386/alternative.h
@@ -5,6 +5,7 @@
 
 #include <asm/types.h>
 
+#include <linux/stddef.h>
 #include <linux/types.h>
 
 struct alt_instr {
@@ -125,8 +126,8 @@ void apply_paravirt(struct paravirt_patc
 static inline void
 apply_paravirt(struct paravirt_patch *start, struct paravirt_patch *end)
 {}
-#define __start_parainstructions 0
-#define __stop_parainstructions 0
+#define __start_parainstructions NULL
+#define __stop_parainstructions NULL
 #endif
 
 #endif /* _I386_ALTERNATIVE_H */
--- linux-2.6.19-rc6-mm2.orig/include/asm-x86_64/alternative.h
+++ linux-2.6.19-rc6-mm2/include/asm-x86_64/alternative.h
@@ -3,6 +3,7 @@
 
 #ifdef __KERNEL__
 
+#include <linux/stddef.h>
 #include <linux/types.h>
 #include <asm/cpufeature.h>
 
@@ -140,8 +141,8 @@ void apply_paravirt(struct paravirt_patc
 static inline void
 apply_paravirt(struct paravirt_patch *start, struct paravirt_patch *end)
 {}
-#define __start_parainstructions 0
-#define __stop_parainstructions 0
+#define __start_parainstructions NULL
+#define __stop_parainstructions NULL
 #endif
 
 #endif /* _X86_64_ALTERNATIVE_H */


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