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UPSTREAM: mm/kasan: Remove the ULONG_MAX stack trace hackery

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Upstream commit ead97a49ec3a3cb9b5133acbfed9a49b91ebf37c.

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

Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Acked-by: Dmitry Vyukov <dvyukov@google.com>
Acked-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Cc: Josh Poimboeuf <jpoimboe@redhat.com>
Cc: Andy Lutomirski <luto@kernel.org>
Cc: Steven Rostedt <rostedt@goodmis.org>
Cc: Alexander Potapenko <glider@google.com>
Cc: Andrey Ryabinin <aryabinin@virtuozzo.com>
Cc: kasan-dev@googlegroups.com
Cc: linux-mm@kvack.org
Link: https://lkml.kernel.org/r/20190410103644.750219625@linutronix.de
Signed-off-by: Andrey Konovalov <andreyknvl@google.com>
Change-Id: I57b225e2bb8bdec599c386732ffe6837653c2a25
Bug: 128674696
This commit is contained in:
Thomas Gleixner 2019-04-10 12:28:07 +02:00 committed by Paul Lawrence
parent 10be9094e3
commit 7095baad73
1 changed files with 0 additions and 3 deletions
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3
mm/kasan/common.c
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@ -75,9 +75,6 @@ static inline depot_stack_handle_t save_stack(gfp_t flags)
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);
}