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=-14.8 required=3.0 tests=DKIM_SIGNED,DKIM_VALID, DKIM_VALID_AU,FREEMAIL_FORGED_FROMDOMAIN,FREEMAIL_FROM, HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_PATCH,MAILING_LIST_MULTI, MENTIONS_GIT_HOSTING,SIGNED_OFF_BY,SPF_HELO_NONE,SPF_PASS,USER_AGENT_GIT autolearn=ham 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 D2B80C4332B for ; Thu, 19 Mar 2020 21:45:57 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id A21902076F for ; Thu, 19 Mar 2020 21:45:57 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (2048-bit key) header.d=gmail.com header.i=@gmail.com header.b="SCQoUMIy" Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1727297AbgCSVp4 (ORCPT ); Thu, 19 Mar 2020 17:45:56 -0400 Received: from mail-wm1-f67.google.com ([209.85.128.67]:50486 "EHLO mail-wm1-f67.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1726619AbgCSVp4 (ORCPT ); Thu, 19 Mar 2020 17:45:56 -0400 Received: by mail-wm1-f67.google.com with SMTP id z13so4456640wml.0 for ; Thu, 19 Mar 2020 14:45:55 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20161025; h=from:to:cc:subject:date:message-id; bh=N4ZopA6jxYwy2PnkatOwlcBFmsjw5EoOzX8MW2R1axk=; b=SCQoUMIyZ8Vbw+wdNtsMzgerp4TLRYoqfv9UdEI8qiiG2yej5r9RHT3QG3KuEakprQ QlVMh79lPcgD52TLIjS02rbPaOmN3pzIWtOjDQSPxBl3MG029b9ZhSqcKGQtfFGgB9Nr ETOO8pn5WfF8KQgR4ayiEWfDyr5kJU4XUyx3ym3e8SbXbUNGaj9HClhMarzLaoYW7kke hO0uQf2m7qGJekB50ULI8hd1uMBqHxhsp47xVxMyyU4Yvj2SKl1kJOhAE6JiDuIpTUO1 UHa/VY8gHYgzqbeDGJGM0JDufqHDdIfOMD1dH91pSkZKPythVlpFVPy4QxEPTJDcCXgE HRuw== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:from:to:cc:subject:date:message-id; bh=N4ZopA6jxYwy2PnkatOwlcBFmsjw5EoOzX8MW2R1axk=; b=j+l4l5/qX0+r7OUJq/r5Cg9svKTuXM7EFRNMLMNDQB3kKCxfu9tYWHbhGTV+6p8zb+ ZEAHBwGHs8zUQkh5X6ORq0vf9v0Uc4huqbMyujfemTEcLYx0y+HOZTh0u+z0Uhvljai9 kbB9m4t0g+MFa9OhSmpRs5T2wG9dl6S+rA4k4EwsRXbqgThDR6YWwXAAEZzW4pH41LgF mlBZ6kYe3+HW7/xHvRP3pHUUywCbBDIaeUnk7Pv/emsC8F/GNYqLp6/S7gB0rSsEIF5E 5e6OaTPCQY4fiiCOFLy56bjDI36FpZZoAmyqZgBb+waG9rC3eBKsC8EBw82qd7BsMT/d aI3Q== X-Gm-Message-State: ANhLgQ0GgBWN7cb4+iEbYaygJaUTV44dDxGNU9uS3NcC05ZdOfcktrQn OFc35ppywy0U8knz9gww/jE= X-Google-Smtp-Source: ADFU+vuUf/dMXXmerrEFIGVyIYt/t73qo9oj9x54KMu2VIM2+RSkINpbNE8HG8y9a2oI2vKGuxTOsg== X-Received: by 2002:a1c:7405:: with SMTP id p5mr6330915wmc.73.1584654354401; Thu, 19 Mar 2020 14:45:54 -0700 (PDT) Received: from localhost.localdomain ([2a02:a58:8532:8700:6c17:119f:1ee1:b2f0]) by smtp.gmail.com with ESMTPSA id h10sm5360793wrb.24.2020.03.19.14.45.53 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Thu, 19 Mar 2020 14:45:53 -0700 (PDT) From: Ilie Halip To: Catalin Marinas Cc: Ilie Halip , Will Deacon , Kees Cook , Sami Tolvanen , Andre Przywara , linux-arm-kernel@lists.infradead.org, linux-kernel@vger.kernel.org, clang-built-linux@googlegroups.com Subject: [PATCH] arm64: alternative: fix build with clang integrated assembler Date: Thu, 19 Mar 2020 23:45:28 +0200 Message-Id: <20200319214530.2046-1-ilie.halip@gmail.com> X-Mailer: git-send-email 2.17.1 Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Building an arm64 defconfig with clang's integrated assembler, this error occurs: :2:2: error: unrecognized instruction mnemonic _ASM_EXTABLE 9999b, 9f ^ arch/arm64/mm/cache.S:50:1: note: while in macro instantiation user_alt 9f, "dc cvau, x4", "dc civac, x4", 0 ^ While GNU as seems fine with case-sensitive macro instantiations, clang doesn't, so use the actual macro name (_asm_extable) as in the rest of the file. Also checked that the generated assembly matches the GCC output. Fixes: 290622efc76e ("arm64: fix "dc cvau" cache operation on errata-affected core") Link: https://github.com/ClangBuiltLinux/linux/issues/924 Signed-off-by: Ilie Halip --- arch/arm64/include/asm/alternative.h | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/arch/arm64/include/asm/alternative.h b/arch/arm64/include/asm/alternative.h index 324e7d5ab37e..5e5dc05d63a0 100644 --- a/arch/arm64/include/asm/alternative.h +++ b/arch/arm64/include/asm/alternative.h @@ -221,7 +221,7 @@ alternative_endif .macro user_alt, label, oldinstr, newinstr, cond 9999: alternative_insn "\oldinstr", "\newinstr", \cond - _ASM_EXTABLE 9999b, \label + _asm_extable 9999b, \label .endm /* -- 2.17.1