[SPARC32]: Move get_wchan into processor.c

arch/sparc/kernel/process.c

@@ -725,3 +725,39 @@ pid_t kernel_thread(int (*fn)(void *), void * arg, unsigned long flags)
 			   "g1", "g2", "g3", "o0", "o1", "memory", "cc");
 	return retval;
 }
+
+extern void scheduling_functions_start_here(void);
+extern void scheduling_functions_end_here(void);
+
+unsigned long get_wchan(struct task_struct *task)
+{
+	unsigned long pc, fp, bias = 0;
+	unsigned long task_base = (unsigned long) task;
+        unsigned long ret = 0;
+	struct reg_window *rw;
+	int count = 0;
+
+	if (!task || task == current ||
+            task->state == TASK_RUNNING)
+		goto out;
+
+	fp = task->thread_info->ksp + bias;
+	do {
+		/* Bogus frame pointer? */
+		if (fp < (task_base + sizeof(struct task_struct)) ||
+		    fp >= (task_base + (2 * PAGE_SIZE)))
+			break;
+		rw = (struct reg_window *) fp;
+		pc = rw->ins[7];
+		if (pc < ((unsigned long) scheduling_functions_start_here) ||
+                    pc >= ((unsigned long) scheduling_functions_end_here)) {
+			ret = pc;
+			goto out;
+		}
+		fp = rw->ins[6] + bias;
+	} while (++count < 16);
+
+out:
+	return ret;
+}
+

include/asm-sparc/processor.h

@@ -139,34 +139,7 @@ extern __inline__ void start_thread(struct pt_regs * regs, unsigned long pc,
 #define release_thread(tsk)		do { } while(0)
 extern pid_t kernel_thread(int (*fn)(void *), void * arg, unsigned long flags);
 
-#define get_wchan(__TSK) \
-({	extern void scheduling_functions_start_here(void); \
-	extern void scheduling_functions_end_here(void); \
-	unsigned long pc, fp, bias = 0; \
-	unsigned long task_base = (unsigned long) (__TSK); \
-        unsigned long __ret = 0; \
-	struct reg_window *rw; \
-	int count = 0; \
-	if (!(__TSK) || (__TSK) == current || \
-            (__TSK)->state == TASK_RUNNING) \
-		goto __out; \
-	fp = (__TSK)->thread_info->ksp + bias; \
-	do { \
-		/* Bogus frame pointer? */ \
-		if (fp < (task_base + sizeof(struct task_struct)) || \
-		    fp >= (task_base + (2 * PAGE_SIZE))) \
-			break; \
-		rw = (struct reg_window *) fp; \
-		pc = rw->ins[7]; \
-		if (pc < ((unsigned long) scheduling_functions_start_here) || \
-                    pc >= ((unsigned long) scheduling_functions_end_here)) { \
-			__ret = pc; \
-			goto __out; \
-		} \
-		fp = rw->ins[6] + bias; \
-	} while (++count < 16); \
-__out:	__ret; \
-})
+extern unsigned long get_wchan(struct task_struct *);
 
 #define KSTK_EIP(tsk)  ((tsk)->thread.kregs->pc)
 #define KSTK_ESP(tsk)  ((tsk)->thread.kregs->u_regs[UREG_FP])