1 files changed, 2 insertions, 60 deletions

diff --git a/arch/arm64/include/asm/stacktrace.h b/arch/arm64/include/asm/stacktrace.h
index aec9315bf156..6ebdcdff77f5 100644
--- a/arch/arm64/include/asm/stacktrace.h
+++ b/arch/arm64/include/asm/stacktrace.h
@@ -8,52 +8,20 @@
 #include <linux/percpu.h>
 #include <linux/sched.h>
 #include <linux/sched/task_stack.h>
-#include <linux/types.h>
 #include <linux/llist.h>
 
 #include <asm/memory.h>
+#include <asm/pointer_auth.h>
 #include <asm/ptrace.h>
 #include <asm/sdei.h>
 
-enum stack_type {
-	STACK_TYPE_UNKNOWN,
-	STACK_TYPE_TASK,
-	STACK_TYPE_IRQ,
-	STACK_TYPE_OVERFLOW,
-	STACK_TYPE_SDEI_NORMAL,
-	STACK_TYPE_SDEI_CRITICAL,
-	__NR_STACK_TYPES
-};
-
-struct stack_info {
-	unsigned long low;
-	unsigned long high;
-	enum stack_type type;
-};
+#include <asm/stacktrace/common.h>
 
 extern void dump_backtrace(struct pt_regs *regs, struct task_struct *tsk,
 			   const char *loglvl);
 
 DECLARE_PER_CPU(unsigned long *, irq_stack_ptr);
 
-static inline bool on_stack(unsigned long sp, unsigned long size,
-			    unsigned long low, unsigned long high,
-			    enum stack_type type, struct stack_info *info)
-{
-	if (!low)
-		return false;
-
-	if (sp < low || sp + size < sp || sp + size > high)
-		return false;
-
-	if (info) {
-		info->low = low;
-		info->high = high;
-		info->type = type;
-	}
-	return true;
-}
-
 static inline bool on_irq_stack(unsigned long sp, unsigned long size,
 				struct stack_info *info)
 {
@@ -89,30 +57,4 @@ static inline bool on_overflow_stack(unsigned long sp, unsigned long size,
 			struct stack_info *info) { return false; }
 #endif
 
-
-/*
- * We can only safely access per-cpu stacks from current in a non-preemptible
- * context.
- */
-static inline bool on_accessible_stack(const struct task_struct *tsk,
-				       unsigned long sp, unsigned long size,
-				       struct stack_info *info)
-{
-	if (info)
-		info->type = STACK_TYPE_UNKNOWN;
-
-	if (on_task_stack(tsk, sp, size, info))
-		return true;
-	if (tsk != current || preemptible())
-		return false;
-	if (on_irq_stack(sp, size, info))
-		return true;
-	if (on_overflow_stack(sp, size, info))
-		return true;
-	if (on_sdei_stack(sp, size, info))
-		return true;
-
-	return false;
-}
-
 #endif	/* __ASM_STACKTRACE_H */