treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 174

[sfrench/cifs-2.6.git] / arch / riscv / kernel / stacktrace.c

diff --git a/arch/riscv/kernel/stacktrace.c b/arch/riscv/kernel/stacktrace.c
index 4d403274c2e8d0436f2c74e3719cbc75fc057db8..f15642715d1a35f14408d9193c3ec0bd6698f567 100644 (file)
--- a/arch/riscv/kernel/stacktrace.c
+++ b/arch/riscv/kernel/stacktrace.c
@@ -1,15 +1,7 @@
+// SPDX-License-Identifier: GPL-2.0-only
 /*
  * Copyright (C) 2008 ARM Limited
  * Copyright (C) 2014 Regents of the University of California
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License version 2 as
- * published by the Free Software Foundation.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
  */
 
 #include <linux/export.h>
@@ -33,9 +25,9 @@ static void notrace walk_stackframe(struct task_struct *task,
        unsigned long fp, sp, pc;
 
        if (regs) {
-               fp = GET_FP(regs);
-               sp = GET_USP(regs);
-               pc = GET_IP(regs);
+               fp = frame_pointer(regs);
+               sp = user_stack_pointer(regs);
+               pc = instruction_pointer(regs);
        } else if (task == NULL || task == current) {
                const register unsigned long current_sp __asm__ ("sp");
                fp = (unsigned long)__builtin_frame_address(0);
@@ -64,12 +56,8 @@ static void notrace walk_stackframe(struct task_struct *task,
                frame = (struct stackframe *)fp - 1;
                sp = fp;
                fp = frame->fp;
-#ifdef HAVE_FUNCTION_GRAPH_RET_ADDR_PTR
                pc = ftrace_graph_ret_addr(current, NULL, frame->ra,
                                           (unsigned long *)(fp - 8));
-#else
-               pc = frame->ra - 0x4;
-#endif
        }
 }
 
@@ -82,8 +70,8 @@ static void notrace walk_stackframe(struct task_struct *task,
        unsigned long *ksp;
 
        if (regs) {
-               sp = GET_USP(regs);
-               pc = GET_IP(regs);
+               sp = user_stack_pointer(regs);
+               pc = instruction_pointer(regs);
        } else if (task == NULL || task == current) {
                const register unsigned long current_sp __asm__ ("sp");
                sp = current_sp;