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 Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id ECB34C43219 for ; Mon, 17 Oct 2022 00:25:04 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S229921AbiJQAZD (ORCPT ); Sun, 16 Oct 2022 20:25:03 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:42300 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S229971AbiJQAY7 (ORCPT ); Sun, 16 Oct 2022 20:24:59 -0400 Received: from dfw.source.kernel.org (dfw.source.kernel.org [IPv6:2604:1380:4641:c500::1]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 4ED241BEAA for ; Sun, 16 Oct 2022 17:24:44 -0700 (PDT) Received: from smtp.kernel.org (relay.kernel.org [52.25.139.140]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by dfw.source.kernel.org (Postfix) with ESMTPS id D86D760E9A for ; Mon, 17 Oct 2022 00:24:43 +0000 (UTC) Received: by smtp.kernel.org (Postfix) with ESMTPSA id 3F1BBC433B5; Mon, 17 Oct 2022 00:24:43 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=linux-foundation.org; s=korg; t=1665966283; bh=H/O50WoELBzPef2bbNp183belT6qSCoHo/97lrQMGjk=; h=Date:To:From:Subject:From; b=LD7WyL9gS78mjXMrURrqOrgjbFADupSy7TKDHN6ZtRfc0g1VrKYY0HALKU/A88Ng5 cg/xioR0F6mu4AHoUarJ4Tnn8FKxMGmFE7HdxXrzEKsZ1iQtgFWA1VvkX+55dvAeFn +byFkYo1zW9W41p+OusKsbG7GFXauodbWQ24ZGI4= Date: Sun, 16 Oct 2022 17:24:42 -0700 To: mm-commits@vger.kernel.org, ysato@users.osdn.me, will@kernel.org, tsbogend@alpha.franken.de, stefan.kristiansson@saunalahti.fi, shorne@gmail.com, oleg@redhat.com, npiggin@gmail.com, mpe@ellerman.id.au, linux@armlinux.org.uk, jonas@southpole.se, James.Bottomley@HansenPartnership.com, dinguyen@kernel.org, deller@gmx.de, davem@davemloft.net, dalias@libc.org, christophe.leroy@csgroup.eu, catalin.marinas@arm.com, bcain@quicinc.com, s.shtylyov@omp.ru, akpm@linux-foundation.org From: Andrew Morton Subject: + regset-make-user_regset_copyin_ignore-void.patch added to mm-nonmm-unstable branch Message-Id: <20221017002443.3F1BBC433B5@smtp.kernel.org> Precedence: bulk Reply-To: linux-kernel@vger.kernel.org List-ID: X-Mailing-List: mm-commits@vger.kernel.org The patch titled Subject: regset: make user_regset_copyin_ignore() *void* has been added to the -mm mm-nonmm-unstable branch. Its filename is regset-make-user_regset_copyin_ignore-void.patch This patch will shortly appear at https://git.kernel.org/pub/scm/linux/kernel/git/akpm/25-new.git/tree/patches/regset-make-user_regset_copyin_ignore-void.patch This patch will later appear in the mm-nonmm-unstable branch at git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm Before you just go and hit "reply", please: a) Consider who else should be cc'ed b) Prefer to cc a suitable mailing list as well c) Ideally: find the original patch on the mailing list and do a reply-to-all to that, adding suitable additional cc's *** Remember to use Documentation/process/submit-checklist.rst when testing your code *** The -mm tree is included into linux-next via the mm-everything branch at git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm and is updated there every 2-3 working days ------------------------------------------------------ From: Sergey Shtylyov Subject: regset: make user_regset_copyin_ignore() *void* Date: Sat, 15 Oct 2022 00:22:35 +0300 user_regset_copyin_ignore() apparently cannot fail and so always returns 0. Let's make this function return *void* instead of *int*... Link: https://lkml.kernel.org/r/20221014212235.10770-14-s.shtylyov@omp.ru Signed-off-by: Sergey Shtylyov Cc: Brian Cain Cc: Catalin Marinas Cc: Christophe Leroy Cc: David S. Miller Cc: Dinh Nguyen Cc: Helge Deller Cc: James Bottomley Cc: Jonas Bonn Cc: Michael Ellerman Cc: Nicholas Piggin Cc: Oleg Nesterov Cc: Rich Felker Cc: Russell King Cc: Stafford Horne Cc: Stefan Kristiansson Cc: Thomas Bogendoerfer Cc: Will Deacon Cc: Yoshinori Sato Signed-off-by: Andrew Morton --- include/linux/regset.h | 15 +++++++-------- 1 file changed, 7 insertions(+), 8 deletions(-) --- a/include/linux/regset.h~regset-make-user_regset_copyin_ignore-void +++ a/include/linux/regset.h @@ -275,15 +275,15 @@ static inline int user_regset_copyin(uns return 0; } -static inline int user_regset_copyin_ignore(unsigned int *pos, - unsigned int *count, - const void **kbuf, - const void __user **ubuf, - const int start_pos, - const int end_pos) +static inline void user_regset_copyin_ignore(unsigned int *pos, + unsigned int *count, + const void **kbuf, + const void __user **ubuf, + const int start_pos, + const int end_pos) { if (*count == 0) - return 0; + return; BUG_ON(*pos < start_pos); if (end_pos < 0 || *pos < end_pos) { unsigned int copy = (end_pos < 0 ? *count @@ -295,7 +295,6 @@ static inline int user_regset_copyin_ign *pos += copy; *count -= copy; } - return 0; } extern int regset_get(struct task_struct *target, _ Patches currently in -mm which might be from s.shtylyov@omp.ru are arc-ptrace-user_regset_copyin_ignore-always-returns-0.patch arm-ptrace-user_regset_copyin_ignore-always-returns-0.patch arm64-ptrace-user_regset_copyin_ignore-always-returns-0.patch hexagon-ptrace-user_regset_copyin_ignore-always-returns-0.patch ia64-ptrace-user_regset_copyin_ignore-always-returns-0.patch mips-ptrace-user_regset_copyin_ignore-always-returns-0.patch nios2-ptrace-user_regset_copyin_ignore-always-returns-0.patch openrisc-ptrace-user_regset_copyin_ignore-always-returns-0.patch parisc-ptrace-user_regset_copyin_ignore-always-returns-0.patch powerpc-ptrace-user_regset_copyin_ignore-always-returns-0.patch sh-ptrace-user_regset_copyin_ignore-always-returns-0.patch sparc-ptrace-user_regset_copyin_ignore-always-returns-0.patch regset-make-user_regset_copyin_ignore-void.patch