From patchwork Mon Nov 4 21:44:41 2019 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Greg KH X-Patchwork-Id: 11226695 X-Patchwork-Delegate: paulburton@kernel.org Return-Path: Received: from mail.kernel.org (pdx-korg-mail-1.web.codeaurora.org [172.30.200.123]) by pdx-korg-patchwork-2.web.codeaurora.org (Postfix) with ESMTP id C24F413BD for ; Mon, 4 Nov 2019 22:23:50 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id A078820650 for ; Mon, 4 Nov 2019 22:23:50 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=default; t=1572906230; bh=9bqpOQ/HTpFfl9Zq2N2vZhaiabTgyqLrkdRiLClf/oc=; h=From:To:Cc:Subject:Date:In-Reply-To:References:List-ID:From; b=xDWBbgc0BUJiQ3/niVFmFidE/jcRfH6ogVE6rdiYksppMqC9cbBujSG3hwk69emzU WAB2/87RPX0Zzue3pgL9u+pzCMegXSX+BMgm3rs6BelfOiyk9NeUS108XAJm2MluVD u5lgQF0dsXmV2VPEKxpqwB2WgOOfnY4wEeQ73Pp4= Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S2387801AbfKDVx5 (ORCPT ); Mon, 4 Nov 2019 16:53:57 -0500 Received: from mail.kernel.org ([198.145.29.99]:48160 "EHLO mail.kernel.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S2387688AbfKDVx4 (ORCPT ); Mon, 4 Nov 2019 16:53:56 -0500 Received: from localhost (6.204-14-84.ripe.coltfrance.com [84.14.204.6]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPSA id 25C3D2190F; Mon, 4 Nov 2019 21:53:54 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=default; t=1572904435; bh=9bqpOQ/HTpFfl9Zq2N2vZhaiabTgyqLrkdRiLClf/oc=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=eCvdXX/rdHMoDM0Bdbw7meCx+T6WXknWvyzI1K9G8i5L+I0QYdc4wB6dgf61Vxw+U 8h9wKINoDtsNoHtvxFQKDGy0zLZNL88PdWG1xtINyvCjAiPiuwHl1Gy1M7lNXngdSj r1gYJzhy4inGZnbphj4dE28raeEn80nvCk2Q0XmQ= From: Greg Kroah-Hartman To: linux-kernel@vger.kernel.org Cc: Greg Kroah-Hartman , stable@vger.kernel.org, Thomas Bogendoerfer , Paul Burton , Ralf Baechle , James Hogan , linux-mips@vger.kernel.org, Sasha Levin Subject: [PATCH 4.14 43/95] MIPS: include: Mark __cmpxchg as __always_inline Date: Mon, 4 Nov 2019 22:44:41 +0100 Message-Id: <20191104212102.161768953@linuxfoundation.org> X-Mailer: git-send-email 2.23.0 In-Reply-To: <20191104212038.056365853@linuxfoundation.org> References: <20191104212038.056365853@linuxfoundation.org> User-Agent: quilt/0.66 MIME-Version: 1.0 Sender: linux-mips-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-mips@vger.kernel.org From: Thomas Bogendoerfer [ Upstream commit 88356d09904bc606182c625575237269aeece22e ] Commit ac7c3e4ff401 ("compiler: enable CONFIG_OPTIMIZE_INLINING forcibly") allows compiler to uninline functions marked as 'inline'. In cace of cmpxchg this would cause to reference function __cmpxchg_called_with_bad_pointer, which is a error case for catching bugs and will not happen for correct code, if __cmpxchg is inlined. Signed-off-by: Thomas Bogendoerfer [paul.burton@mips.com: s/__cmpxchd/__cmpxchg in subject] Signed-off-by: Paul Burton Cc: Ralf Baechle Cc: James Hogan Cc: linux-mips@vger.kernel.org Cc: linux-kernel@vger.kernel.org Signed-off-by: Sasha Levin --- arch/mips/include/asm/cmpxchg.h | 5 +++-- 1 file changed, 3 insertions(+), 2 deletions(-) diff --git a/arch/mips/include/asm/cmpxchg.h b/arch/mips/include/asm/cmpxchg.h index 89e9fb7976fe6..895f91b9e89c3 100644 --- a/arch/mips/include/asm/cmpxchg.h +++ b/arch/mips/include/asm/cmpxchg.h @@ -146,8 +146,9 @@ static inline unsigned long __xchg(volatile void *ptr, unsigned long x, extern unsigned long __cmpxchg_small(volatile void *ptr, unsigned long old, unsigned long new, unsigned int size); -static inline unsigned long __cmpxchg(volatile void *ptr, unsigned long old, - unsigned long new, unsigned int size) +static __always_inline +unsigned long __cmpxchg(volatile void *ptr, unsigned long old, + unsigned long new, unsigned int size) { switch (size) { case 1: