From: Russell King <rmk@dyn-67.arm.linux.org.uk>
Date: Sat, 6 Sep 2008 09:14:24 +0000 (+0100)
Subject: [ARM] remove pc_pointer()
X-Git-Tag: v2.6.28-rc1~293^2~9^2~37
X-Git-Url: http://pilppa.com/gitweb/?a=commitdiff_plain;h=1de765c1e940e23d83ec57035769e8af003f8796;p=linux-2.6-omap-h63xx.git

[ARM] remove pc_pointer()

pc_pointer() was a function to mask the PC for 26-bit ARMs, which
we no longer support.  Remove it.

Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
---

diff --git a/arch/arm/include/asm/ptrace.h b/arch/arm/include/asm/ptrace.h
index b415c0e8545..73192618f1c 100644
--- a/arch/arm/include/asm/ptrace.h
+++ b/arch/arm/include/asm/ptrace.h
@@ -54,7 +54,6 @@
 #define PSR_C_BIT	0x20000000
 #define PSR_Z_BIT	0x40000000
 #define PSR_N_BIT	0x80000000
-#define PCMASK		0
 
 /*
  * Groups of PSR bits
@@ -139,11 +138,7 @@ static inline int valid_user_regs(struct pt_regs *regs)
 	return 0;
 }
 
-#define pc_pointer(v) \
-	((v) & ~PCMASK)
-
-#define instruction_pointer(regs) \
-	(pc_pointer((regs)->ARM_pc))
+#define instruction_pointer(regs)	(regs)->ARM_pc
 
 #ifdef CONFIG_SMP
 extern unsigned long profile_pc(struct pt_regs *regs);
diff --git a/arch/arm/include/asm/thread_info.h b/arch/arm/include/asm/thread_info.h
index e56fa48e4ae..68b9ec82a37 100644
--- a/arch/arm/include/asm/thread_info.h
+++ b/arch/arm/include/asm/thread_info.h
@@ -98,7 +98,7 @@ static inline struct thread_info *current_thread_info(void)
 }
 
 #define thread_saved_pc(tsk)	\
-	((unsigned long)(pc_pointer(task_thread_info(tsk)->cpu_context.pc)))
+	((unsigned long)(task_thread_info(tsk)->cpu_context.pc))
 #define thread_saved_fp(tsk)	\
 	((unsigned long)(task_thread_info(tsk)->cpu_context.fp))
 
diff --git a/arch/arm/kernel/process.c b/arch/arm/kernel/process.c
index a2e75420858..2ce9a401c8f 100644
--- a/arch/arm/kernel/process.c
+++ b/arch/arm/kernel/process.c
@@ -385,7 +385,7 @@ unsigned long get_wchan(struct task_struct *p)
 	do {
 		if (fp < stack_start || fp > stack_end)
 			return 0;
-		lr = pc_pointer (((unsigned long *)fp)[-1]);
+		lr = ((unsigned long *)fp)[-1];
 		if (!in_sched_functions(lr))
 			return lr;
 		fp = *(unsigned long *) (fp - 12);
diff --git a/arch/arm/kernel/ptrace.c b/arch/arm/kernel/ptrace.c
index 4b05dc5c102..77ea1f27f40 100644
--- a/arch/arm/kernel/ptrace.c
+++ b/arch/arm/kernel/ptrace.c
@@ -126,7 +126,7 @@ ptrace_getrn(struct task_struct *child, unsigned long insn)
 
 	val = get_user_reg(child, reg);
 	if (reg == 15)
-		val = pc_pointer(val + 8);
+		val += 8;
 
 	return val;
 }
@@ -278,8 +278,7 @@ get_branch_address(struct task_struct *child, unsigned long pc, unsigned long in
 				else
 					base -= aluop2;
 			}
-			if (read_u32(child, base, &alt) == 0)
-				alt = pc_pointer(alt);
+			read_u32(child, base, &alt);
 		}
 		break;
 
@@ -305,8 +304,7 @@ get_branch_address(struct task_struct *child, unsigned long pc, unsigned long in
 
 			base = ptrace_getrn(child, insn);
 
-			if (read_u32(child, base + nr_regs, &alt) == 0)
-				alt = pc_pointer(alt);
+			read_u32(child, base + nr_regs, &alt);
 			break;
 		}
 		break;
diff --git a/arch/arm/kernel/time.c b/arch/arm/kernel/time.c
index 368d171754c..c68b44aa88d 100644
--- a/arch/arm/kernel/time.c
+++ b/arch/arm/kernel/time.c
@@ -59,7 +59,7 @@ unsigned long profile_pc(struct pt_regs *regs)
 
 	if (in_lock_functions(pc)) {
 		fp = regs->ARM_fp;
-		pc = pc_pointer(((unsigned long *)fp)[-1]);
+		pc = ((unsigned long *)fp)[-1];
 	}
 
 	return pc;