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=-7.0 required=3.0 tests=HEADER_FROM_DIFFERENT_DOMAINS, INCLUDES_PATCH,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 3DBC5C43441 for ; Fri, 16 Nov 2018 12:42:30 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id E3D632087C for ; Fri, 16 Nov 2018 12:42:29 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org E3D632087C Authentication-Results: mail.kernel.org; dmarc=none (p=none dis=none) header.from=ellerman.id.au Authentication-Results: mail.kernel.org; spf=none smtp.mailfrom=linux-kernel-owner@vger.kernel.org Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S2389716AbeKPWym (ORCPT ); Fri, 16 Nov 2018 17:54:42 -0500 Received: from ozlabs.org ([203.11.71.1]:51243 "EHLO ozlabs.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1727772AbeKPWyl (ORCPT ); Fri, 16 Nov 2018 17:54:41 -0500 Received: from authenticated.ozlabs.org (localhost [127.0.0.1]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by ozlabs.org (Postfix) with ESMTPSA id 42xHtn347bz9sDC; Fri, 16 Nov 2018 23:42:25 +1100 (AEDT) Authentication-Results: ozlabs.org; dmarc=none (p=none dis=none) header.from=ellerman.id.au From: Michael Ellerman To: Elvira Khabirova , benh@kernel.crashing.org, paulus@samba.org Cc: linuxppc-dev@lists.ozlabs.org, linux-kernel@vger.kernel.org, leitao@debian.org, oleg@redhat.com, luto@kernel.org, ldv@altlinux.org, esyr@redhat.com Subject: Re: [PATCH v2] powerpc/ptrace: replace ptrace_report_syscall() with a tracehook call In-Reply-To: <20181116121701.14359da0@akathisia> References: <20181116121701.14359da0@akathisia> Date: Fri, 16 Nov 2018 23:42:24 +1100 Message-ID: <87ftw12nyn.fsf@concordia.ellerman.id.au> MIME-Version: 1.0 Content-Type: text/plain Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Elvira Khabirova writes: > Arch code should use tracehook_*() helpers, as documented > in include/linux/tracehook.h. Thanks. It probably also should have a comment explaining why we're ignoring the return value and why that's OK. cheers > Fixes: 5521eb4bca2d ("powerpc/ptrace: Add support for PTRACE_SYSEMU") > Signed-off-by: Elvira Khabirova > --- > arch/powerpc/kernel/ptrace.c | 2 +- > 1 file changed, 1 insertion(+), 1 deletion(-) > > diff --git a/arch/powerpc/kernel/ptrace.c b/arch/powerpc/kernel/ptrace.c > index afb819f4ca68..d79d907f9acc 100644 > --- a/arch/powerpc/kernel/ptrace.c > +++ b/arch/powerpc/kernel/ptrace.c > @@ -3266,7 +3266,7 @@ long do_syscall_trace_enter(struct pt_regs *regs) > user_exit(); > > if (test_thread_flag(TIF_SYSCALL_EMU)) { > - ptrace_report_syscall(regs); > + (void) tracehook_report_syscall_entry(regs); > /* > * Returning -1 will skip the syscall execution. We want to > * avoid clobbering any register also, thus, not 'gotoing' > -- > 2.19.1