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=-8.6 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,SIGNED_OFF_BY, SPF_PASS,URIBL_BLOCKED,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 47BBFC5ACCC for ; Thu, 18 Oct 2018 16:26:23 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id 075CF21479 for ; Thu, 18 Oct 2018 16:26:23 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (2048-bit key) header.d=gmail.com header.i=@gmail.com header.b="OcMIVvUF" DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org 075CF21479 Authentication-Results: mail.kernel.org; dmarc=fail (p=none dis=none) header.from=gmail.com Authentication-Results: mail.kernel.org; spf=none smtp.mailfrom=linux-kernel-owner@vger.kernel.org Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1728538AbeJSA2F (ORCPT ); Thu, 18 Oct 2018 20:28:05 -0400 Received: from mail-pg1-f195.google.com ([209.85.215.195]:44408 "EHLO mail-pg1-f195.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1727402AbeJSA2E (ORCPT ); Thu, 18 Oct 2018 20:28:04 -0400 Received: by mail-pg1-f195.google.com with SMTP id g2-v6so14414931pgu.11; Thu, 18 Oct 2018 09:26:20 -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:in-reply-to:references; bh=3FKV7PguVhGaaFT83abrxfobePyuJ/ZBdvJ6x8a5cqo=; b=OcMIVvUF0GMfsZrF86d8yWroo+jUju7bdcmKhW2WHFItvRzBbiDUbAc22FlA/fZvU6 UACA3b3wIs9U/54RNw+OW2DfKwfqP4IiycD25C4e0kCuu9ZK2vLHGKLOUgKGYF4r2Z8n /7E7+Gp35Y0rdLvyVZKdq71WZVggR/2xYaZq675XRmSlBTS3N3B0Kn8qqhygDDLqp4Yz eqQkQHKVvrYCCxiAPH1lMDp8fLbgEEkFDZIN5tZviQovcS6HW41SoHaVhYY38N5iFxgD AMTE8O2Q0TAatjfK5Rfv3cyRtL5cGfm+RDJ/Dl7wf9Juz6hCUcuM9AkCLs1e8LUuevhO teuw== 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:in-reply-to :references; bh=3FKV7PguVhGaaFT83abrxfobePyuJ/ZBdvJ6x8a5cqo=; b=DqIuq+uOQB+CvqbHLlJDd2/Ym6vOYHsJMdsVm5Or1BckZn8qNXPW1Ys6eJs1859RKN Gj7SlJ3nE2MMWMmYEDkrE0y8QG7SlFdMXIcuU5W8vo38nekJnzsM5fuUJPqygMMxbsvp dhN2zWD/28BacKN2ZyAdbsMSuq0GkvzCm0J/9aNPYHe73D3i7j2AlpzqMBOE1SUCqBbu mN1M/7/k7HlWDznWYq9MrGDApYK4cekRaJooprj+wkykCD/V7+LfCVpqy9WqyTJW6vxU hSdsHJcxfpyWfF2rPNZT+Q6pj/wsYlOQVXsJRidxTtdZFFXKCvM09T0zfnw75Cfb3Qzp 8Afg== X-Gm-Message-State: ABuFfoggHcoFiF138wHFm/5iU3NkhxzJGVUrQ9cghtto7O3zUE1plyfE aVScM+5qtPBw7pXRcWQmvgg= X-Google-Smtp-Source: ACcGV60fGQ3vI6QAckWY02jxNLZN0sfT01xEM3j1WUqCQxDk1bHd8eMxfH/HYDQ2rjNo3i4tbr2klw== X-Received: by 2002:a65:44c6:: with SMTP id g6-v6mr28329113pgs.350.1539879979903; Thu, 18 Oct 2018 09:26:19 -0700 (PDT) Received: from vultr.guest ([2001:19f0:6001:4ff6:5400:1ff:feb7:a195]) by smtp.gmail.com with ESMTPSA id 5-v6sm27813420pgt.83.2018.10.18.09.26.18 (version=TLS1_2 cipher=ECDHE-RSA-AES128-GCM-SHA256 bits=128/128); Thu, 18 Oct 2018 09:26:19 -0700 (PDT) From: Du Changbin To: yamada.masahiro@socionext.com, michal.lkml@markovi.net, tglx@linutronix.de, mingo@redhat.com, linux@armlinux.org.uk, akpm@linux-foundation.org Cc: rostedt@goodmis.org, x86@kernel.org, linux-kbuild@vger.kernel.org, linux-kernel@vger.kernel.org, linux-arm-kernel@lists.infradead.org, linux-sparse@vger.kernel.org, Changbin Du Subject: [PATCH 3/4] ARM: mm: fix build error in fix_to_virt with CONFIG_CC_OPTIMIZE_FOR_DEBUGGING Date: Thu, 18 Oct 2018 16:25:47 +0000 Message-Id: <20181018162548.6399-4-changbin.du@gmail.com> X-Mailer: git-send-email 2.17.1 In-Reply-To: <20181018162548.6399-1-changbin.du@gmail.com> References: <20181018162548.6399-1-changbin.du@gmail.com> Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org From: Changbin Du With '-Og' optimization level, GCC would not optimize a count for a loop as a constant value. But BUILD_BUG_ON() only accept compile-time constant values. Let's use __fix_to_virt() to avoid the error. arch/arm/mm/mmu.o: In function `fix_to_virt': /home/changbin/work/linux/./include/asm-generic/fixmap.h:31: undefined reference to `__compiletime_assert_31' Makefile:1051: recipe for target 'vmlinux' failed make: *** [vmlinux] Error 1 Signed-off-by: Changbin Du Acked-by: Steven Rostedt (VMware) --- arch/arm/mm/mmu.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/arch/arm/mm/mmu.c b/arch/arm/mm/mmu.c index e46a6a446cdd..c08d74e76714 100644 --- a/arch/arm/mm/mmu.c +++ b/arch/arm/mm/mmu.c @@ -1599,7 +1599,7 @@ static void __init early_fixmap_shutdown(void) pte_t *pte; struct map_desc map; - map.virtual = fix_to_virt(i); + map.virtual = __fix_to_virt(i); pte = pte_offset_early_fixmap(pmd_off_k(map.virtual), map.virtual); /* Only i/o device mappings are supported ATM */ -- 2.17.1