[RFC patch 13/41] mm/kasan: Remove the ULONG_MAX stack trace hackery

[Thomas Gleixner <tglx@xxxxxxxxxxxxx>]

No architecture terminates the stack trace with ULONG_MAX anymore. Remove
the cruft.

Signed-off-by: Thomas Gleixner <tglx@xxxxxxxxxxxxx>
Cc: Andrey Ryabinin <aryabinin@xxxxxxxxxxxxx>
Cc: Alexander Potapenko <glider@xxxxxxxxxx>
Cc: kasan-dev@xxxxxxxxxxxxxxxx
Cc: Dmitry Vyukov <dvyukov@xxxxxxxxxx>
Cc: linux-mm@xxxxxxxxx
---
 mm/kasan/common.c |    3 ---
 1 file changed, 3 deletions(-)

--- a/mm/kasan/common.c
+++ b/mm/kasan/common.c
@@ -74,9 +74,6 @@ static inline depot_stack_handle_t save_
 
 	save_stack_trace(&trace);
 	filter_irq_stacks(&trace);
-	if (trace.nr_entries != 0 &&
-	    trace.entries[trace.nr_entries-1] == ULONG_MAX)
-		trace.nr_entries--;
 
 	return depot_save_stack(&trace, flags);
 }