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=-9.0 required=3.0 tests=HEADER_FROM_DIFFERENT_DOMAINS, INCLUDES_PATCH,MAILING_LIST_MULTI,SIGNED_OFF_BY,SPF_PASS,URIBL_BLOCKED, USER_AGENT_NEOMUTT 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 CE07AC10F11 for ; Wed, 24 Apr 2019 15:52:06 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id A167520878 for ; Wed, 24 Apr 2019 15:52:06 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1731896AbfDXPwF (ORCPT ); Wed, 24 Apr 2019 11:52:05 -0400 Received: from mx1.redhat.com ([209.132.183.28]:20185 "EHLO mx1.redhat.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1730625AbfDXPwF (ORCPT ); Wed, 24 Apr 2019 11:52:05 -0400 Received: from smtp.corp.redhat.com (int-mx05.intmail.prod.int.phx2.redhat.com [10.5.11.15]) (using TLSv1.2 with cipher AECDH-AES256-SHA (256/256 bits)) (No client certificate requested) by mx1.redhat.com (Postfix) with ESMTPS id EAD1A30A8199; Wed, 24 Apr 2019 15:52:04 +0000 (UTC) Received: from treble (ovpn-123-99.rdu2.redhat.com [10.10.123.99]) by smtp.corp.redhat.com (Postfix) with ESMTPS id 9F0F55D704; Wed, 24 Apr 2019 15:52:01 +0000 (UTC) Date: Wed, 24 Apr 2019 10:51:54 -0500 From: Josh Poimboeuf To: Petr Mladek Cc: Jiri Kosina , Miroslav Benes , Joe Lawrence , Kamalesh Babulal , live-patching@vger.kernel.org, linux-kernel@vger.kernel.org Subject: Re: [PATCH 2/3] stacktrace: Remove superfluous WARN_ONCE() from save_stack_trace_tsk_reliable() Message-ID: <20190424155154.h62wc3nt7ib2phdy@treble> References: <20190424085550.29612-1-pmladek@suse.com> <20190424085550.29612-3-pmladek@suse.com> MIME-Version: 1.0 Content-Type: text/plain; charset=utf-8 Content-Disposition: inline In-Reply-To: <20190424085550.29612-3-pmladek@suse.com> User-Agent: NeoMutt/20180716 X-Scanned-By: MIMEDefang 2.79 on 10.5.11.15 X-Greylist: Sender IP whitelisted, not delayed by milter-greylist-4.5.16 (mx1.redhat.com [10.5.110.44]); Wed, 24 Apr 2019 15:52:05 +0000 (UTC) Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On Wed, Apr 24, 2019 at 10:55:49AM +0200, Petr Mladek wrote: > WARN_ONCE() in the generic save_stack_trace_tsk_reliable() is superfluous. > The only current user klp_check_stack() writes its own warning when > -ENOSYS is returned. > > Signed-off-by: Petr Mladek > --- > kernel/stacktrace.c | 1 - > 1 file changed, 1 deletion(-) > > diff --git a/kernel/stacktrace.c b/kernel/stacktrace.c > index f8edee9c792d..83ac0ac5ffd9 100644 > --- a/kernel/stacktrace.c > +++ b/kernel/stacktrace.c > @@ -74,6 +74,5 @@ __weak int > save_stack_trace_tsk_reliable(struct task_struct *tsk, > struct stack_trace *trace) > { > - WARN_ONCE(1, KERN_INFO "save_stack_tsk_reliable() not implemented yet.\n"); > return -ENOSYS; > } > -- > 2.16.4 > Acked-by: Josh Poimboeuf -- Josh