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=-1.1 required=3.0 tests=DKIMWL_WL_HIGH,DKIM_SIGNED, DKIM_VALID,DKIM_VALID_AU,MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS autolearn=no 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 B3A55C43331 for ; Sun, 29 Mar 2020 21:22:15 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id 7C9DD20748 for ; Sun, 29 Mar 2020 21:22:14 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=default; t=1585516935; bh=henbE984rrlQ2aisAaasFTvuukMP1h2D8fArnHeL2fE=; h=References:In-Reply-To:From:Date:Subject:To:Cc:List-ID:From; b=a/76OQ64Q72Dg6nfwgwSIh5BPsBTyra3sa+xqP4Rm2zYFX6MLro8F6TyCK64N/EA7 /1hr9Jrh5rUF2wFVa9kQ5xbjFBlzWaBAIT6008DfdH0GdPT5JN0VmO0pg2llx6uoNK 1mg9EHb0RN6YAMQFeJ8fKz5foEokosVVbXPN7Bbg= Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1728943AbgC2VWN (ORCPT ); Sun, 29 Mar 2020 17:22:13 -0400 Received: from mail.kernel.org ([198.145.29.99]:32990 "EHLO mail.kernel.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1728908AbgC2VWN (ORCPT ); Sun, 29 Mar 2020 17:22:13 -0400 Received: from mail-wr1-f52.google.com (mail-wr1-f52.google.com [209.85.221.52]) (using TLSv1.2 with cipher ECDHE-RSA-AES128-GCM-SHA256 (128/128 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPSA id 5457720787 for ; Sun, 29 Mar 2020 21:22:12 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=default; t=1585516932; bh=henbE984rrlQ2aisAaasFTvuukMP1h2D8fArnHeL2fE=; h=References:In-Reply-To:From:Date:Subject:To:Cc:From; b=CT0BJrt8haSInSNKAvdzi5ePELm8SItRufE5YA6TDyhxaIdAUXyIAyEu5sCQvraIO 7B7hzZJj1PWNebSgnBVIBZv/aOnrlDBUYtUuim18NZEbfTQRxiaKzXaywxnEAuaPyv axFQSAVAd+ZWaqROX3/J7A50OAG7O8DErYQkjiyk= Received: by mail-wr1-f52.google.com with SMTP id h9so18779711wrc.8 for ; Sun, 29 Mar 2020 14:22:12 -0700 (PDT) X-Gm-Message-State: ANhLgQ0f5tIWOkYhbJ9pLwxpJ5N14/+cxP1NY/nHXYXRKZptfD6FJ6nm B1fU/167A4mYq+J3b4RcXAyWLBvGWJBTkbkKjzPhhg== X-Google-Smtp-Source: ADFU+vsGnaM2PRBkeXNlpbRPMLa9FLhGvFgbGDJJhYmUAZzE3663n5gDF7Ocr08xsbfJl/xiwczBs3KLpqJZFuhia3U= X-Received: by 2002:adf:e901:: with SMTP id f1mr11177142wrm.75.1585516930709; Sun, 29 Mar 2020 14:22:10 -0700 (PDT) MIME-Version: 1.0 References: <20200323183620.GD23230@ZenIV.linux.org.uk> <20200323183819.250124-1-viro@ZenIV.linux.org.uk> <20200328104857.GA93574@gmail.com> <20200328115936.GA23230@ZenIV.linux.org.uk> <20200329092602.GB93574@gmail.com> <489c9af889954649b3453e350bab6464@AcuMS.aculab.com> <9352bc55302d4589aaf2461c7b85fb6b@AcuMS.aculab.com> In-Reply-To: From: Andy Lutomirski Date: Sun, 29 Mar 2020 14:21:58 -0700 X-Gmail-Original-Message-ID: Message-ID: Subject: Re: [RFC][PATCH 01/22] x86 user stack frame reads: switch to explicit __get_user() To: Linus Torvalds Cc: David Laight , Ingo Molnar , Al Viro , Thomas Gleixner , X86 ML , LKML , Borislav Petkov Content-Type: text/plain; charset="UTF-8" Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On Sun, Mar 29, 2020 at 11:16 AM Linus Torvalds wrote: > But that magical asm-goto-with-outputs patch probably won't land > upstream for a couple of years. I'm not that familiar with gcc politics, but what's the delay? ISTM having an actual upstream Linux asm-goto-with-outputs that works on clang might help light a fire under some butts and/or convince someone to pay a gcc developer to implement it on gcc. --Andy