From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-4.0 required=3.0 tests=HEADER_FROM_DIFFERENT_DOMAINS, MAILING_LIST_MULTI,SIGNED_OFF_BY,SPF_PASS,URIBL_BLOCKED autolearn=ham autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id 9FAAEC10F14 for ; Wed, 10 Apr 2019 11:05:53 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id 7B81621B18 for ; Wed, 10 Apr 2019 11:05:53 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1731007AbfDJLFw (ORCPT ); Wed, 10 Apr 2019 07:05:52 -0400 Received: from Galois.linutronix.de ([146.0.238.70]:58786 "EHLO Galois.linutronix.de" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1730850AbfDJLFp (ORCPT ); Wed, 10 Apr 2019 07:05:45 -0400 Received: from localhost ([127.0.0.1] helo=nanos.tec.linutronix.de) by Galois.linutronix.de with esmtp (Exim 4.80) (envelope-from ) id 1hEB31-00054r-7s; Wed, 10 Apr 2019 13:05:43 +0200 Message-Id: <20190410103644.750219625@linutronix.de> User-Agent: quilt/0.65 Date: Wed, 10 Apr 2019 12:28:07 +0200 From: Thomas Gleixner To: LKML Cc: Josh Poimboeuf , x86@kernel.org, Andy Lutomirski , Steven Rostedt , Alexander Potapenko , Andrey Ryabinin , kasan-dev@googlegroups.com, Dmitry Vyukov , linux-mm@kvack.org Subject: [RFC patch 13/41] mm/kasan: Remove the ULONG_MAX stack trace hackery References: <20190410102754.387743324@linutronix.de> MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org No architecture terminates the stack trace with ULONG_MAX anymore. Remove the cruft. Signed-off-by: Thomas Gleixner Cc: Andrey Ryabinin Cc: Alexander Potapenko Cc: kasan-dev@googlegroups.com Cc: Dmitry Vyukov Cc: linux-mm@kvack.org --- 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); }