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 BA0FCC32793 for ; Sun, 21 Aug 2022 10:11:54 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S230151AbiHUKLx (ORCPT ); Sun, 21 Aug 2022 06:11:53 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:52700 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S229436AbiHUKLv (ORCPT ); Sun, 21 Aug 2022 06:11:51 -0400 Received: from mail-ej1-x631.google.com (mail-ej1-x631.google.com [IPv6:2a00:1450:4864:20::631]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 9286FFD3E; Sun, 21 Aug 2022 03:11:49 -0700 (PDT) Received: by mail-ej1-x631.google.com with SMTP id ce26so476817ejb.11; Sun, 21 Aug 2022 03:11:49 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20210112; h=in-reply-to:content-disposition:mime-version:references:message-id :subject:cc:to:from:date:sender:from:to:cc; bh=8ith3DKWqelfwAhl4fXB2Zj3+XrRanGIkq2gbaZNWZg=; b=BVQpXwpBZgmCcpri72t9UYGSUWNIWbGX+mvKI914QY8tRVzJe+eeIW6Qh/v466eoXH fqtZ9qkt9kzrgFQw4vvsffJYWvxDWABGWdj72gGBl+UQVV0nFx/FqLnPInnnqSkwvZiz QAx3e/fFprENPZEkS4XD1h1f1dkIll6fgX8OBhc6HyYzEUEfBsScjnLGiqwELqIQJfdE CXpkfkItL/NTWXet387ZBCBynIWBmmn5KciXvLRb/KXwolyGql54ceQ8n2zKycvV0r3S RNr8UB6ykcmIvdBDzec7uUOA0eGooPOq6M9o5dvWGS520weyqQRDNqRik0CYBOTV/P1m j0ww== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20210112; h=in-reply-to:content-disposition:mime-version:references:message-id :subject:cc:to:from:date:sender:x-gm-message-state:from:to:cc; bh=8ith3DKWqelfwAhl4fXB2Zj3+XrRanGIkq2gbaZNWZg=; b=6VsinoZI2o3WE51q0ZzibGqafmGtJq02mwLNQywbJm+VUjt0yNrScWZcsyDsOfvoWj j6ix5Nd+cLmbxPaltGMe7etCbXNKy0hVA02ln0UgNxX17og17Y4Ct3RcXrHnH82TkUXW 0Nvxk1BBsgyWfiQcN4ISJx3z6A/1jciNY+w1pUhonzpstzTHwXW+uen/TbvIkRGfzxgG H3W73OFfjBLHy7Fs4faqSX5ZbkpdGQW+1WjbRvkU/3afnqh5Ya08hHZSZVdGzrV9k5ze Qrn1wqWhq251bQeMvptyjUCDRgKY5iu+rBABkTcYUnh/idVEWuY4x0mmQVrGaPvbU8vS hKvQ== X-Gm-Message-State: ACgBeo04Z8gv5Oi5EtlvtKCDP1zBTIIJap2BnkK7JO02zg9BaX0b8Kqr nDuwggEs0jxr1VBDmom0xLc= X-Google-Smtp-Source: AA6agR4kTu9YlV5YYbUUlwVhkyNFi6XbWVbAuGGc7J+qELenLCeL3rXs3jHQa/zJy5NHEabc6B1vAQ== X-Received: by 2002:a17:907:288a:b0:730:7f77:9550 with SMTP id em10-20020a170907288a00b007307f779550mr9534282ejc.216.1661076708009; Sun, 21 Aug 2022 03:11:48 -0700 (PDT) Received: from gmail.com (195-38-113-151.pool.digikabel.hu. [195.38.113.151]) by smtp.gmail.com with ESMTPSA id j15-20020aa7c0cf000000b0043bbc9503ddsm6251027edp.76.2022.08.21.03.11.46 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Sun, 21 Aug 2022 03:11:47 -0700 (PDT) Sender: Ingo Molnar Date: Sun, 21 Aug 2022 12:11:45 +0200 From: Ingo Molnar To: Nick Desaulniers Cc: Masahiro Yamada , Peter Zijlstra , x86@kernel.org, linux-kbuild@vger.kernel.org, linux-doc@vger.kernel.org, linux-kernel@vger.kernel.org, linux-um@lists.infradead.org, kvm@vger.kernel.org, llvm@lists.linux.dev, Linus Torvalds , Alexandre Belloni , Borislav Petkov , Alexei Starovoitov Subject: Re: [PATCH v2] asm goto: eradicate CC_HAS_ASM_GOTO Message-ID: References: <20220819190640.2763586-1-ndesaulniers@google.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20220819190640.2763586-1-ndesaulniers@google.com> Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org * Nick Desaulniers wrote: > GCC has supported asm goto since 4.5, and Clang has since version 9.0.0. > The minimum supported versions of these tools for the build according to > Documentation/process/changes.rst are 5.1 and 11.0.0 respectively. > > Remove the feature detection script, Kconfig option, and clean up some > fallback code that is no longer supported. > > The removed script was also testing for a GCC specific bug that was > fixed in the 4.7 release. > > Also remove workarounds for bpftrace using clang older than 9.0.0, since > other BPF backend fixes are required at this point. > > Link: https://lore.kernel.org/lkml/CAK7LNATSr=BXKfkdW8f-H5VT_w=xBpT2ZQcZ7rm6JfkdE+QnmA@mail.gmail.com/ > Link: http://gcc.gnu.org/bugzilla/show_bug.cgi?id=48637 > Acked-by: Borislav Petkov > Suggested-by: Masahiro Yamada > Suggested-by: Alexei Starovoitov > Signed-off-by: Nick Desaulniers Reviewed-by: Ingo Molnar Good riddance. Thanks, Ingo