From patchwork Tue May 14 11:48:53 2013 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Jonathan Austin X-Patchwork-Id: 2565471 Return-Path: X-Original-To: patchwork-linux-arm@patchwork.kernel.org Delivered-To: patchwork-process-083081@patchwork2.kernel.org Received: from casper.infradead.org (casper.infradead.org [85.118.1.10]) by patchwork2.kernel.org (Postfix) with ESMTP id 2D365DF24C for ; Tue, 14 May 2013 11:54:06 +0000 (UTC) Received: from merlin.infradead.org ([2001:4978:20e::2]) by casper.infradead.org with esmtps (Exim 4.80.1 #2 (Red Hat Linux)) id 1UcDlK-000253-SG; Tue, 14 May 2013 11:51:24 +0000 Received: from localhost ([::1] helo=merlin.infradead.org) by merlin.infradead.org with esmtp (Exim 4.80.1 #2 (Red Hat Linux)) id 1UcDkS-0003p3-LR; Tue, 14 May 2013 11:50:28 +0000 Received: from service87.mimecast.com ([91.220.42.44]) by merlin.infradead.org with esmtp (Exim 4.80.1 #2 (Red Hat Linux)) id 1UcDkP-0003nJ-CY for linux-arm-kernel@lists.infradead.org; Tue, 14 May 2013 11:50:25 +0000 Received: from cam-owa2.Emea.Arm.com (fw-tnat.cambridge.arm.com [217.140.96.21]) by service87.mimecast.com; Tue, 14 May 2013 12:50:06 +0100 Received: from e102895-lin.cambridge.arm.com ([10.1.255.212]) by cam-owa2.Emea.Arm.com with Microsoft SMTPSVC(6.0.3790.3959); Tue, 14 May 2013 12:50:04 +0100 From: Jonathan Austin To: linux-arm-kernel@lists.infradead.org Subject: [PATCH 3/7] ARM: nommu: provide dummy cpu_switch_mm implementation Date: Tue, 14 May 2013 12:48:53 +0100 Message-Id: <1368532137-8871-4-git-send-email-jonathan.austin@arm.com> X-Mailer: git-send-email 1.7.9.5 In-Reply-To: <1368532137-8871-1-git-send-email-jonathan.austin@arm.com> References: <1368532137-8871-1-git-send-email-jonathan.austin@arm.com> X-OriginalArrivalTime: 14 May 2013 11:50:04.0291 (UTC) FILETIME=[2C3FA530:01CE5099] X-MC-Unique: 113051412500608601 X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20130514_075025_631481_3CFCE656 X-CRM114-Status: UNSURE ( 9.64 ) X-CRM114-Notice: Please train this message. X-Spam-Score: -2.6 (--) X-Spam-Report: SpamAssassin version 3.3.2 on merlin.infradead.org summary: Content analysis details: (-2.6 points) pts rule name description ---- ---------------------- -------------------------------------------------- -0.7 RCVD_IN_DNSWL_LOW RBL: Sender listed at http://www.dnswl.org/, low trust [91.220.42.44 listed in list.dnswl.org] -0.0 SPF_PASS SPF: sender matches SPF record -1.9 BAYES_00 BODY: Bayes spam probability is 0 to 1% [score: 0.0000] Cc: will.deacon@arm.com, u.kleine-koenig@pengutronix.de X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.15 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , MIME-Version: 1.0 Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+patchwork-linux-arm=patchwork.kernel.org@lists.infradead.org From: Will Deacon cpu_switch_mm is a logical nop on nommu systems, so define it as such when !CONFIG_MMU. Signed-off-by: Will Deacon --- arch/arm/include/asm/proc-fns.h | 4 ++++ 1 file changed, 4 insertions(+) diff --git a/arch/arm/include/asm/proc-fns.h b/arch/arm/include/asm/proc-fns.h index f3628fb..a6c99fe 100644 --- a/arch/arm/include/asm/proc-fns.h +++ b/arch/arm/include/asm/proc-fns.h @@ -137,6 +137,10 @@ extern void cpu_resume(void); }) #endif +#else /*!CONFIG_MMU */ + +#define cpu_switch_mm(pgd,mm) { } + #endif #endif /* __ASSEMBLY__ */