powerpc: Rename set_break to avoid naming conflict

With allmodconfig we are getting:
drivers/tty/synclink_gt.c:160:12: error: conflicting types for 'set_break'
arch/powerpc/include/asm/debug.h:49:5: note: previous declaration of 'set_break' was here

drivers/tty/synclinkmp.c:526:12: error: conflicting types for 'set_break'
arch/powerpc/include/asm/debug.h:49:5: note: previous declaration of 'set_break' was here

This renames set_break to set_breakpoint to avoid this naming conflict

Signed-off-by: Michael Neuling <[e-mail]>
Reported-by: Fengguang Wu <[e-mail]>
Signed-off-by: Benjamin Herrenschmidt <[e-mail]>

arch/powerpc/include/asm/debug.h

···
 static inline int debugger_fault_handler(struct pt_regs *regs) { return 0; }
 #endif
 
-int set_break(struct arch_hw_breakpoint *brk);
+int set_breakpoint(struct arch_hw_breakpoint *brk);
 #ifdef CONFIG_PPC_ADV_DEBUG_REGS
 extern void do_send_trap(struct pt_regs *regs, unsigned long address,
 			 unsigned long error_code, int signal_code, int brkpt);

arch/powerpc/include/asm/hw_breakpoint.h

···
 	brk.address = 0;
 	brk.type = 0;
 	brk.len = 0;
-	set_break(&brk);
+	set_breakpoint(&brk);
 }
 extern void thread_change_pc(struct task_struct *tsk, struct pt_regs *regs);
 

arch/powerpc/kernel/hw_breakpoint.c

···
 	 * If so, DABR will be populated in single_step_dabr_instruction().
 	 */
 	if (current->thread.last_hit_ubp != bp)
-		set_break(info);
+		set_breakpoint(info);
 
 	return 0;
 }
···
 
 	info = counter_arch_bp(tsk->thread.last_hit_ubp);
 	regs->msr &= ~MSR_SE;
-	set_break(info);
+	set_breakpoint(info);
 	tsk->thread.last_hit_ubp = NULL;
 }
 
···
 	if (!(info->type & HW_BRK_TYPE_EXTRANEOUS_IRQ))
 		perf_bp_event(bp, regs);
 
-	set_break(info);
+	set_breakpoint(info);
 out:
 	rcu_read_unlock();
 	return rc;
···
 	if (!(info->type & HW_BRK_TYPE_EXTRANEOUS_IRQ))
 		perf_bp_event(bp, regs);
 
-	set_break(info);
+	set_breakpoint(info);
 	current->thread.last_hit_ubp = NULL;
 
 	/*

arch/powerpc/kernel/process.c

···
 {
 	thread->hw_brk.address = 0;
 	thread->hw_brk.type = 0;
-	set_break(&thread->hw_brk);
+	set_breakpoint(&thread->hw_brk);
 }
 #endif /* !CONFIG_HAVE_HW_BREAKPOINT */
 #endif	/* CONFIG_PPC_ADV_DEBUG_REGS */
···
 	return 0;
 }
 
-int set_break(struct arch_hw_breakpoint *brk)
+int set_breakpoint(struct arch_hw_breakpoint *brk)
 {
 	__get_cpu_var(current_brk) = *brk;
 
···
  */
 #ifndef CONFIG_HAVE_HW_BREAKPOINT
 	if (unlikely(hw_brk_match(&__get_cpu_var(current_brk), &new->thread.hw_brk)))
-		set_break(&new->thread.hw_brk);
+		set_breakpoint(&new->thread.hw_brk);
 #endif /* CONFIG_HAVE_HW_BREAKPOINT */
 #endif
 

arch/powerpc/kernel/signal.c

···
 	 */
 	if (current->thread.hw_brk.address &&
 		current->thread.hw_brk.type)
-		set_break(&current->thread.hw_brk);
+		set_breakpoint(&current->thread.hw_brk);
 #endif
 	/* Re-enable the breakpoints for the signal stack */
 	thread_change_pc(current, regs);

arch/powerpc/xmon/xmon.c

···
 		brk.address = dabr.address;
 		brk.type = (dabr.enabled & HW_BRK_TYPE_DABR) | HW_BRK_TYPE_PRIV_ALL;
 		brk.len = 8;
-		set_break(&brk);
+		set_breakpoint(&brk);
 	}
 	if (iabr && cpu_has_feature(CPU_FTR_IABR))
 		mtspr(SPRN_IABR, iabr->address