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 bombadil.infradead.org (bombadil.infradead.org [198.137.202.133]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.lore.kernel.org (Postfix) with ESMTPS id AE9C8C43458 for ; Fri, 3 Jul 2026 09:35:00 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=lists.infradead.org; s=bombadil.20210309; h=Sender: Content-Transfer-Encoding:Content-Type:List-Subscribe:List-Help:List-Post: List-Archive:List-Unsubscribe:List-Id:MIME-Version:Message-ID:Date:References :In-Reply-To:Subject:Cc:To:From:Reply-To:Content-ID:Content-Description: Resent-Date:Resent-From:Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID: List-Owner; bh=FYERMfmDG7QkY/P1AxhGVOS398pKefGP7ruJXJ6yrqc=; b=Q18nWZUz/G26hi zABX0Asw0UV+5sWhaqVkcCAfmy5ScQpU6M/cJCz8Kyza79T5OApIohtW5YMT/85+BnejNUFhq1Fte JIqk3nrFQzZQ4hBrZpxxjkeHeKDUsp9eSp0BDCvTOOs0VAmdOiCDWJE0J7xYaAYun7qQ8JcGoy+UV uTJJjS/BlxgQJRRrXUh4u0GtHQSm6dGgC+ODL1c68crLBANlX0o3Nzp1qblRM3Sck2IF7uLLOwWfC VeSqt7dH3y3FwitbTZV80wD11L/QDKu5+POfpejWotd1lhcfYBd+a8TCT4dJjPf50w/OvrGWaQTIT AkPD2DDzMepE38z9RelQ==; Received: from localhost ([::1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.99.1 #2 (Red Hat Linux)) id 1wfaIG-00000006Udi-1PDG; Fri, 03 Jul 2026 09:34:45 +0000 Received: from tor.source.kernel.org ([172.105.4.254]) by bombadil.infradead.org with esmtps (Exim 4.99.1 #2 (Red Hat Linux)) id 1wfaIF-00000006UdV-2dBN for linux-riscv@lists.infradead.org; Fri, 03 Jul 2026 09:34:43 +0000 Received: from smtp.kernel.org (quasi.space.kernel.org [100.103.45.18]) by tor.source.kernel.org (Postfix) with ESMTP id D09566001A; Fri, 3 Jul 2026 09:34:42 +0000 (UTC) Received: by smtp.kernel.org (Postfix) with ESMTPSA id B6B011F000E9; Fri, 3 Jul 2026 09:34:41 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=kernel.org; s=k20260515; t=1783071282; bh=nMY8UZyvI/HF5Rdv1bSkWyNbGRbx1G27seV2ZaZUbN4=; h=From:To:Cc:Subject:In-Reply-To:References:Date; b=K4JQ6Zc8TPguGmkEN1toHL2v5PXz61h6EWt7zZ8rNB04Nv/OFyWtRbIK7/fVYv1YG B2iavueYbkcwMfN5GGnSDuP3/Y2ypQOlduP9C9EH0oHedTCI4eVb8GN99XZ7K3gk2U mKiWTX7nFzp9NihhXbgvqGtv6EZe36azyYLF8fKo4DpnPtV9M5EwlFIg4kabWNJ5dR ivYvj8LWnh2+s/7LGPHBUsOszJO62d4z94v7KFjNFI2CueHXILKryvycsxAeIyGtSG s98h3rggiuosCqsSmQ0MRnvTtW2Y2rrZ6VdGUVtB9Peojv9MYzNR0W2Zxz87hN6G4/ UM7w31V/ebUew== From: Thomas Gleixner To: Michal =?utf-8?Q?Such=C3=A1nek?= Cc: Peter Zijlstra , Jonathan Corbet , Shuah Khan , Huacai Chen , WANG Xuerui , Madhavan Srinivasan , Michael Ellerman , Nicholas Piggin , "Christophe Leroy (CS GROUP)" , Paul Walmsley , Palmer Dabbelt , Albert Ou , Alexandre Ghiti , Heiko Carstens , Vasily Gorbik , Alexander Gordeev , Christian Borntraeger , Sven Schnelle , Andy Lutomirski , Ingo Molnar , Borislav Petkov , Dave Hansen , x86@kernel.org, "H. Peter Anvin" , Andrew Donnellan , Mark Rutland , Arnd Bergmann , Jiaxun Yang , Ryan Roberts , Greg Kroah-Hartman , Mukesh Kumar Chaurasiya , Shrikanth Hegde , Zong Li , Nam Cao , Deepak Gupta , Lukas Gerlach , Rui Qi , Kees Cook , linux-doc@vger.kernel.org, linux-kernel@vger.kernel.org, loongarch@lists.linux.dev, linuxppc-dev@lists.ozlabs.org, linux-riscv@lists.infradead.org, linux-s390@vger.kernel.org Subject: Re: [RFC] entry: Untangle the return value of syscall_enter_from_user_mode from syscall NR In-Reply-To: References: <878q7tprau.ffs@fw13> <87jyrdnmrh.ffs@fw13> Date: Fri, 03 Jul 2026 11:34:39 +0200 Message-ID: <87ik6wmn68.ffs@fw13> MIME-Version: 1.0 X-BeenThere: linux-riscv@lists.infradead.org X-Mailman-Version: 2.1.34 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: base64 Sender: "linux-riscv" Errors-To: linux-riscv-bounces+linux-riscv=archiver.kernel.org@lists.infradead.org T24gRnJpLCBKdWwgMDMgMjAyNiBhdCAwOTo1MywgTWljaGFsIFN1Y2jDoW5layB3cm90ZToKPiBP biBUaHUsIEp1bCAwMiwgMjAyNiBhdCAxMDo0NTo1NFBNICswMjAwLCBUaG9tYXMgR2xlaXhuZXIg d3JvdGU6Cj4+ID4gV2hlbiB0aGUgc3lzY2FsbCBudW1iZXIgd2FzIC0xIHRvIHN0YXJ0IHdpdGgg aXQncyBub3QgcG9zc2libGUgdG8KPj4gPiBkZXRlcm1pbmUgaWYgdGhlIHN5c2NhbGwgd2FzIGZp bGV0ZXJkIGZyb20gdGhlIHJldHVybiB2YWx1ZS4gczM5MAo+PiA+IHJldHVybnMgdGhlIGZpbHRl cmVkIHN0YXRlIGluIGEgZmxhZyBpdCBzZXRzIG9uIHRoZSByZWdzIHN0cnVjdHVyZSwKPj4gPiBh dm9pZGluZyB0aGlzIHByb2JsZW0uCj4+IAo+PiBXaGF0IG5lZWRzIHRvIGRldGVybWluZSB3aGV0 aGVyIHRoZSBzeXNjYWxsIHdhcyBmaWx0ZXJlZCBvciBub3Q/Cj4KPiBUaGUgY29kZSB0aGF0IGV4 ZWN1dGVzIHN5c2NhbGxfZW50ZXJfZnJvbV91c2VyX21vZGUoKSBuZWVkcyB0byBkZXRlcm1pbmUK PiB0aGF0Lgo+Cj4gQWZ0ZXIgc3lzY2FsbF9lbnRlcl9mcm9tX3VzZXJfbW9kZSgpIHJldHVybnMg dGhlIHN5c2NhbGwgbmVlZHMgdG8gYmUKPiBleGVjdXRlZCBvciBza2lwcGVkLgo+Cj4gJ0V4ZWN1 dGluZycgYW4gaW52YWxpZCBzeXNjYWxsIGJvaWxzIGRvd24gdG8gc2V0dGluZyB0aGUgcmV0dXJu IHZhbHVlIHRvCj4gLUVOT1NZUy4KPgo+IEJ1dCBpZiB0aGUgc3lzY2FsbCBudW1iZXIgcmV0dXJu ZWQgaXMgLTEgd2FzIHRoZSBzeXNjYWxsIGZpbHRlcmVkIGFuZAo+IHRoZSByZXR1cm4gdmFsdWUg c2V0IGJ5IHN5c2NhbGxfZW50ZXJfZnJvbV91c2VyX21vZGUoKSBvciBzaG91bGQgaXQgYmUKPiBz ZXQgYnkgdGhlIGNhbGxlciB0byAtRU5PU1lTPwoKU2VlIHRoZSBleHBsYW5hdGlvbiBJIGdhdmUg dG8gUGV0ZXIuIEl0J3MgY29uY2x1c2l2ZSwgYnV0IGFkbWl0dGVkbHkgbm90CmludHVpdGl2ZS4K ClRoZSBmYWN0LCB0aGF0IHMzOTAgZGVjaWRlZCB0byBoYXZlIHRoZSBzeXNjYWxsIG51bWJlciBh bmQgdGhlIHJldHVybgp2YWx1ZSBpbiB0aGUgc2FtZSByZWdpc3RlciBpcyBhIGRpZmZlcmVudCBw cm9ibGVtLCBidXQgYXMgSSBwb2ludGVkIG91dAp0byBTdmVuIGl0IGNvdWxkIGhhdmUgYmVlbiBz b2x2ZWQgY29tcGxldGVseSB3aXRob3V0IHRoYXQgZmxhZy4KClRoYW5rcywKCiAgICAgICAgdGds eAoKX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX18KbGludXgt cmlzY3YgbWFpbGluZyBsaXN0CmxpbnV4LXJpc2N2QGxpc3RzLmluZnJhZGVhZC5vcmcKaHR0cDov L2xpc3RzLmluZnJhZGVhZC5vcmcvbWFpbG1hbi9saXN0aW5mby9saW51eC1yaXNjdgo=