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 13185C44500 for ; Mon, 6 Jul 2026 08:17:14 +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=HaNQXVDDj8vUOzEhneJVOs6r1qrBkRGbZ8+I6odTpZk=; b=EWKdxZ3pG9jUfm 8ZjjnLvO4KAetpZnGcXjoPGtpxUkF8BcZtWhSpwuHY29FF+JUwzOTYM8FlnRdmDLpKRNlQbyHbJfG sPCk+hud7l0jnPGnVTjjDUrJhWaVVEMwvHbrSQA67XwTUytf+xh+iyn935LJd65jm+h6yeUNMCzfv tlr6WuDgku1JHIgwAifyji//+uQfIfE83dd5aRt+Z2clyWIbze/6dFppHg2/WP+ZKEC/wh/UZlaNm K77wFnPtx3GamVVdGrAPFcEgJYr4KyIo9DtXEeZ7VrG6Gpyu9uqhZefRcr1xGfWgFMjU7K6WSCsAy dz894Upvzu+5g3gfkV/w==; Received: from localhost ([::1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.99.1 #2 (Red Hat Linux)) id 1wgeVj-0000000Bo4X-2syA; Mon, 06 Jul 2026 08:17:03 +0000 Received: from tor.source.kernel.org ([2600:3c04:e001:324:0:1991:8:25]) by bombadil.infradead.org with esmtps (Exim 4.99.1 #2 (Red Hat Linux)) id 1wgeVi-0000000Bo4K-0ejR for linux-riscv@lists.infradead.org; Mon, 06 Jul 2026 08:17:02 +0000 Received: from smtp.kernel.org (quasi.space.kernel.org [100.103.45.18]) by tor.source.kernel.org (Postfix) with ESMTP id 08683600C3; Mon, 6 Jul 2026 08:17:01 +0000 (UTC) Received: by smtp.kernel.org (Postfix) with ESMTPSA id E7CF91F000E9; Mon, 6 Jul 2026 08:16:59 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=kernel.org; s=k20260515; t=1783325820; bh=r7+ah1vbGAvQLsR+3yUG/Iv1avIrbLDskfWMmANIMpA=; h=From:To:Cc:Subject:In-Reply-To:References:Date; b=XfC9H2UVpNQGtHq/xKLEWuvy4dBFo+F8wnT4a3nMjIvGfHuzuoXWCWWpR3IRGACyX ddDWKGu9BP+PsJvxUDK2bd/p/KeWLd0czr6A1n2oiorGfYOAORf0VSj4p8BpzPNLGs Ks/289z7wkXWc1DnJ7LrjlkM5r3LLyPV2aysSVO7Va/BtZrxeY3rlf3iV2jR28XK6V xvP1325V2CnieiUAnTaDerFyvnvz3so5txLMmGU2XfJvoVLUklK5D8L7xrnfvcxkuk 3Zu/60IEr5IZRUAZ6W1jaKJhtWOhQgEXUqGG56v4UZ08TQLLk8BNUS0lXkVaayTddt u2lcP/zMPqcAw== From: Thomas Gleixner To: Michal =?utf-8?Q?Such=C3=A1nek?= , Peter Zijlstra Cc: 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 , Michal =?utf-8?Q?Such=C3=A1nek?= , 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: Date: Mon, 06 Jul 2026 10:16:57 +0200 Message-ID: <87ik6sjzwm.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 T24gV2VkLCBKdWwgMDEgMjAyNiBhdCAxOTo0MiwgTWljaGFsIFN1Y2jDoW5layB3cm90ZToKPiAg Cj4gIAlpZiAodW5saWtlbHkod29yayAmIFNZU0NBTExfV09SS19TWVNDQUxMX1RSQUNFUE9JTlQp KQo+IC0JCXN5c2NhbGwgPSB0cmFjZV9zeXNjYWxsX2VudGVyKHJlZ3MsIHN5c2NhbGwpOwo+ICsJ CSpzeXNjYWxsID0gdHJhY2Vfc3lzY2FsbF9lbnRlcihyZWdzLCAqc3lzY2FsbCk7Cj4gIAo+IC0J c3lzY2FsbF9lbnRlcl9hdWRpdChyZWdzLCBzeXNjYWxsKTsKPiArCXN5c2NhbGxfZW50ZXJfYXVk aXQocmVncywgKnN5c2NhbGwpOwo+ICAKPiAtCXJldHVybiByZXQgPyA6IHN5c2NhbGw7Cj4gKwly ZXR1cm4gMDsKClRoYXQgYnJlYWtzIHRyYWNlX3N5c2NhbGxfZW50ZXIoKSBiZWNhdXNlIHRoZSBw cm9iZXMvQlBGIG11Y2sgYXR0YWNoZWQKb3QgdGhhdCBjYW46CgogICAgIDEpIHNldCB0aGUgcmV0 dXJuIGNvZGUKICAgICAyKSBzZXQgc3lzY2FsbCB0byAtMUwKClRoYXQgd29ya3MgY29ycmVjdGx5 IHRvZGF5LCBidXQgd2l0aCB5b3VyIHNsb3BweSBoYWNrZXJ5IHRoZSBsb3cgbGV2ZWwKeDg2IGNv ZGUgZmFsbHMgaW50byBzeXNfbmlfc3lzY2FsbCgpIHdoaWNoIHNldHMgdGhlIHJldHVybiBjb2Rl IHRvCi1FTk9TWVMuCgoKX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19f X19fX18KbGludXgtcmlzY3YgbWFpbGluZyBsaXN0CmxpbnV4LXJpc2N2QGxpc3RzLmluZnJhZGVh ZC5vcmcKaHR0cDovL2xpc3RzLmluZnJhZGVhZC5vcmcvbWFpbG1hbi9saXN0aW5mby9saW51eC1y aXNjdgo=