linux-kernel - [PATCH] x86: fix sparse warnings in ptrace.c

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Message-ID: <491DED60.1060509@simon.arlott.org.uk>
Date:	Fri, 14 Nov 2008 21:28:00 +0000
From:	Simon Arlott <simon@...e.lp0.eu>
To:	Linux Kernel Mailing List <linux-kernel@...r.kernel.org>,
	trivial@...nel.org, Ingo Molnar <mingo@...e.hu>
Subject: [PATCH] x86: fix sparse warnings in ptrace.c

arch/x86/kernel/ptrace.c:634:32: error: incompatible types for operation (*)
arch/x86/kernel/ptrace.c:634:32:    left side has type unsigned char static [unsigned] [toplevel] sizeof_field
arch/x86/kernel/ptrace.c:634:32:    right side has type bad type enum bts_field field
arch/x86/kernel/ptrace.c:634:7: error: invalid assignment

arch/x86/kernel/ptrace.c:640:32: error: incompatible types for operation (*)
arch/x86/kernel/ptrace.c:640:32:    left side has type unsigned char static [unsigned] [toplevel] sizeof_field
arch/x86/kernel/ptrace.c:640:32:    right side has type bad type enum bts_field field
arch/x86/kernel/ptrace.c:640:7: error: invalid assignment

Signed-off-by: Simon Arlott <simon@...e.lp0.eu>
---
 arch/x86/kernel/ptrace.c |    4 ++--
 1 files changed, 2 insertions(+), 2 deletions(-)

diff --git a/arch/x86/kernel/ptrace.c b/arch/x86/kernel/ptrace.c
index 0a6d8c1..662a400 100644
--- a/arch/x86/kernel/ptrace.c
+++ b/arch/x86/kernel/ptrace.c
@@ -631,13 +631,13 @@ enum bts_field {
 
 static inline unsigned long bts_get(const char *base, enum bts_field field)
 {
-	base += (bts_cfg.sizeof_field * field);
+	base += (bts_cfg.sizeof_field * (unsigned char)field);
 	return *(unsigned long *)base;
 }
 
 static inline void bts_set(char *base, enum bts_field field, unsigned long val)
 {
-	base += (bts_cfg.sizeof_field * field);;
+	base += (bts_cfg.sizeof_field * (unsigned char)field);
 	(*(unsigned long *)base) = val;
 }
 
-- 
1.6.0.3

-- 
Simon Arlott
--
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