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=-13.5 required=3.0 tests=DKIM_INVALID,DKIM_SIGNED, HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_PATCH,MAILING_LIST_MULTI, MENTIONS_GIT_HOSTING,SIGNED_OFF_BY,SPF_HELO_NONE,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 D2E55C43613 for ; Fri, 21 Jun 2019 08:58:54 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id A1CE221530 for ; Fri, 21 Jun 2019 08:58:54 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=fail reason="signature verification failed" (2048-bit key) header.d=gmail.com header.i=@gmail.com header.b="okEQYw/y" Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1726412AbfFUI6x (ORCPT ); Fri, 21 Jun 2019 04:58:53 -0400 Received: from mail-wr1-f67.google.com ([209.85.221.67]:46806 "EHLO mail-wr1-f67.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1726055AbfFUI6w (ORCPT ); Fri, 21 Jun 2019 04:58:52 -0400 Received: by mail-wr1-f67.google.com with SMTP id n4so5712027wrw.13 for ; Fri, 21 Jun 2019 01:58:51 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20161025; h=sender:from:to:cc:subject:date:message-id:mime-version :content-transfer-encoding; bh=yFfPvkWjkkrjWmIO9mwmRCrRTqpdUG3kSxHSiTlM+a8=; b=okEQYw/yOdLIiBcSL/MJhiUQ4KzzI4k0KswWUFAIRv4nTaOJl+uXH52wlUTTU7zJn6 LFF93u/LnNl5csBdDYw5HuXsXzVb/Zryc3h99C/Rt6y4KO2k00VXji4RoU4EsdwhiRm9 gvN5zgYdlZdLzFwBkF3MwQmSNGpWbdBew/jEu9MYaREdqB5z0h2tnl1UPM0E3BDrk3hy cysbQKPnrhSlU5Gmqe+sp0zVpzmpdo6nsivWnpGK8zmvkmLWIVvl1cCh7FdhNpnvjMG0 /79YPwylaRi6XEGsbLsNbALUa0JTCzOGJ4hmpB/yzjMKaG7oi6jjtmCmGxl3dePP31h5 3BzQ== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:sender:from:to:cc:subject:date:message-id :mime-version:content-transfer-encoding; bh=yFfPvkWjkkrjWmIO9mwmRCrRTqpdUG3kSxHSiTlM+a8=; b=rVFixYzsVlZ2YgPtqekfIkP+hImToBznYg7Klu9P1jnz3GloGxI2Qmp+/avBPL2rat lddaF9qi5Ul6vBBs9ALLoLA9IvofFB9piUSqN557Esu5ns2olwBdNK7Ov4O1KcKRmP6S M8Cl9DxQ7ZpEmRRpcioIFDN7vcL8rxSWU2crHEvW23siymfo+woHlRRiJMSCDxKdEQcf UxmePDFm0ZfrSPzLD5zq7N3P6n1Zb5JQxTgStpPI7OCMeQk92bASgsYPyOMHpuDadSAL VvRDsRWbWrn0f+9VfX9k83HyvDn+JyA1v45FBRfBywZDOkUjt6nAXNlbaH4ejdiyCtoA dK9A== X-Gm-Message-State: APjAAAU9HyW3+amtRQxKVyjLzbfBlKA7k3X0o5holqm9RJ+b/PfmZHr4 uFi0+LqJZKdZnZ7pcufdXPM= X-Google-Smtp-Source: APXvYqwu3QJoLLix0JPme99XociPLUyVBqqIaJQwLHO3pMm10WMLt1XDSZpTcbpXbWyCXEyg7cJ/YA== X-Received: by 2002:a5d:6190:: with SMTP id j16mr1576725wru.49.1561107530600; Fri, 21 Jun 2019 01:58:50 -0700 (PDT) Received: from macbookpro.malat.net (bru31-1-78-225-224-134.fbx.proxad.net. [78.225.224.134]) by smtp.gmail.com with ESMTPSA id z5sm2059189wrh.16.2019.06.21.01.58.49 (version=TLS1_2 cipher=ECDHE-RSA-CHACHA20-POLY1305 bits=256/256); Fri, 21 Jun 2019 01:58:50 -0700 (PDT) Received: by macbookpro.malat.net (Postfix, from userid 1000) id 047AA11459C9; Fri, 21 Jun 2019 10:58:49 +0200 (CEST) From: Mathieu Malaterre To: Michael Ellerman Cc: Mathieu Malaterre , Joel Stanley , Benjamin Herrenschmidt , Paul Mackerras , linuxppc-dev@lists.ozlabs.org, linux-kernel@vger.kernel.org Subject: [PATCH] powerpc/lib/xor_vmx: Relax frame size for clang Date: Fri, 21 Jun 2019 10:58:22 +0200 Message-Id: <20190621085822.1527-1-malat@debian.org> X-Mailer: git-send-email 2.20.1 MIME-Version: 1.0 Content-Transfer-Encoding: 8bit Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org When building with clang-8 the frame size limit is hit: ../arch/powerpc/lib/xor_vmx.c:119:6: error: stack frame size of 1200 bytes in function '__xor_altivec_5' [-Werror,-Wframe-larger-than=] Follow the same approach as commit 9c87156cce5a ("powerpc/xmon: Relax frame size for clang") until a proper fix is implemented upstream in clang and relax requirement for clang. Link: https://github.com/ClangBuiltLinux/linux/issues/563 Cc: Joel Stanley Signed-off-by: Mathieu Malaterre --- arch/powerpc/lib/Makefile | 4 ++++ 1 file changed, 4 insertions(+) diff --git a/arch/powerpc/lib/Makefile b/arch/powerpc/lib/Makefile index c55f9c27bf79..b3f7d64caaf0 100644 --- a/arch/powerpc/lib/Makefile +++ b/arch/powerpc/lib/Makefile @@ -58,5 +58,9 @@ obj-$(CONFIG_FTR_FIXUP_SELFTEST) += feature-fixups-test.o obj-$(CONFIG_ALTIVEC) += xor_vmx.o xor_vmx_glue.o CFLAGS_xor_vmx.o += -maltivec $(call cc-option,-mabi=altivec) +ifdef CONFIG_CC_IS_CLANG +# See https://github.com/ClangBuiltLinux/linux/issues/563 +CFLAGS_xor_vmx.o += -Wframe-larger-than=4096 +endif obj-$(CONFIG_PPC64) += $(obj64-y) -- 2.20.1