From: Andi Kleen <ak@suse.de>
Date: Thu, 7 Dec 2006 01:14:06 +0000 (+0100)
Subject: [PATCH] x86-64: Use probe_kernel_address in arch/x86_64/*
X-Git-Url: http://git.lede-project.org./?a=commitdiff_plain;h=ab2bf0c1c689905b628dca94d0acd9c50e152468;p=openwrt%2Fstaging%2Fblogic.git

[PATCH] x86-64: Use probe_kernel_address in arch/x86_64/*

Instead of open coded __get_user

Signed-off-by: Andi Kleen <ak@suse.de>
---

diff --git a/arch/x86_64/kernel/traps.c b/arch/x86_64/kernel/traps.c
index 70bfaab9822c..264db33476ab 100644
--- a/arch/x86_64/kernel/traps.c
+++ b/arch/x86_64/kernel/traps.c
@@ -30,9 +30,9 @@
 #include <linux/kprobes.h>
 #include <linux/kexec.h>
 #include <linux/unwind.h>
+#include <linux/uaccess.h>
 
 #include <asm/system.h>
-#include <asm/uaccess.h>
 #include <asm/io.h>
 #include <asm/atomic.h>
 #include <asm/debugreg.h>
diff --git a/arch/x86_64/mm/fault.c b/arch/x86_64/mm/fault.c
index 3751b4788e28..a65fc6f1dcaf 100644
--- a/arch/x86_64/mm/fault.c
+++ b/arch/x86_64/mm/fault.c
@@ -23,9 +23,9 @@
 #include <linux/compiler.h>
 #include <linux/module.h>
 #include <linux/kprobes.h>
+#include <linux/uaccess.h>
 
 #include <asm/system.h>
-#include <asm/uaccess.h>
 #include <asm/pgalloc.h>
 #include <asm/smp.h>
 #include <asm/tlbflush.h>
@@ -96,7 +96,7 @@ void bust_spinlocks(int yes)
 static noinline int is_prefetch(struct pt_regs *regs, unsigned long addr,
 				unsigned long error_code)
 { 
-	unsigned char __user *instr;
+	unsigned char *instr;
 	int scan_more = 1;
 	int prefetch = 0; 
 	unsigned char *max_instr;
@@ -116,7 +116,7 @@ static noinline int is_prefetch(struct pt_regs *regs, unsigned long addr,
 		unsigned char instr_hi;
 		unsigned char instr_lo;
 
-		if (__get_user(opcode, (char __user *)instr))
+		if (probe_kernel_address(instr, opcode))
 			break; 
 
 		instr_hi = opcode & 0xf0; 
@@ -154,7 +154,7 @@ static noinline int is_prefetch(struct pt_regs *regs, unsigned long addr,
 		case 0x00:
 			/* Prefetch instruction is 0x0F0D or 0x0F18 */
 			scan_more = 0;
-			if (__get_user(opcode, (char __user *)instr))
+			if (probe_kernel_address(instr, opcode))
 				break;
 			prefetch = (instr_lo == 0xF) &&
 				(opcode == 0x0D || opcode == 0x18);
@@ -170,7 +170,7 @@ static noinline int is_prefetch(struct pt_regs *regs, unsigned long addr,
 static int bad_address(void *p) 
 { 
 	unsigned long dummy;
-	return __get_user(dummy, (unsigned long __user *)p);
+	return probe_kernel_address((unsigned long *)p, dummy);
 } 
 
 void dump_pagetable(unsigned long address)