1 files changed, 0 insertions, 54 deletions
diff --git a/arch/blackfin/kernel/stacktrace.c b/arch/blackfin/kernel/stacktrace.c
deleted file mode 100644
index 17198f3650b6..000000000000
--- a/arch/blackfin/kernel/stacktrace.c
+++ /dev/null
@@ -1,54 +0,0 @@
-/*
- * Blackfin stacktrace code (mostly copied from avr32)
- *
- * Copyright 2009 Analog Devices Inc.
- * Licensed under the GPL-2 or later.
- */
-
-#include <linux/sched.h>
-#include <linux/sched/task_stack.h>
-#include <linux/stacktrace.h>
-#include <linux/thread_info.h>
-#include <linux/module.h>
-
-register unsigned long current_frame_pointer asm("FP");
-
-struct stackframe {
-	unsigned long fp;
-	unsigned long rets;
-};
-
-/*
- * Save stack-backtrace addresses into a stack_trace buffer.
- */
-void save_stack_trace(struct stack_trace *trace)
-{
-	unsigned long low, high;
-	unsigned long fp;
-	struct stackframe *frame;
-	int skip = trace->skip;
-
-	low = (unsigned long)task_stack_page(current);
-	high = low + THREAD_SIZE;
-	fp = current_frame_pointer;
-
-	while (fp >= low && fp <= (high - sizeof(*frame))) {
-		frame = (struct stackframe *)fp;
-
-		if (skip) {
-			skip--;
-		} else {
-			trace->entries[trace->nr_entries++] = frame->rets;
-			if (trace->nr_entries >= trace->max_entries)
-				break;
-		}
-
-		/*
-		 * The next frame must be at a higher address than the
-		 * current frame.
-		 */
-		low = fp + sizeof(*frame);
-		fp = frame->fp;
-	}
-}
-EXPORT_SYMBOL_GPL(save_stack_trace);