From patchwork Tue Sep 4 11:45:29 2018 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Will Deacon X-Patchwork-Id: 145916 Delivered-To: patch@linaro.org Received: by 2002:a2e:1648:0:0:0:0:0 with SMTP id 8-v6csp3559722ljw; Tue, 4 Sep 2018 04:45:24 -0700 (PDT) X-Google-Smtp-Source: ANB0VdYmqODPK3Z5bGkI00a+CHjehzXDvomu7NvbtDsj7gs8OtSf2OCAYJTEvJlGKWomSy1tL9xG X-Received: by 2002:a62:6eca:: with SMTP id j193-v6mr34656494pfc.256.1536061523908; Tue, 04 Sep 2018 04:45:23 -0700 (PDT) ARC-Seal: i=1; a=rsa-sha256; t=1536061523; cv=none; d=google.com; s=arc-20160816; b=uoOYp6mxSPmGne6jD2m0zxtzSvTccCZV6f/90aHKMawSD1JxsRUydDhtF1N3MmblX9 fIekwn2imNtEBWQU+01xJpPFblHeh4RYoCAq61DP23fq/Mdhn59ZOAtUuVGlsGQhvHJ1 xxCv1CWTdrcx5A/7Cdfl+AS+D/Psgu91l5xkOTI+qC/MojHe2JTyYSRKflMH5JM+iW62 4sXEXm/trHeccaAyBmvxBZfDYQv3H6l65VB9OrvkI8zWahKWpzlfYA7/JjOPZrvuDFt2 Ifk/ws2HbU7VNAbWjc9C1KehvArcSEvnJ5ysLIOhuPuXSG5c3AjJdP8y1lBlEkoxTxNb +vkA== ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=google.com; s=arc-20160816; h=list-id:precedence:sender:references:in-reply-to:message-id:date :subject:cc:to:from:arc-authentication-results; bh=E/NRrP7bddD+/+YjR+u1jL6AsGXChDge17/FW4JEhcE=; b=pqrT1yke/nx5vzn0Wr457qJtJv0FJah4avzp4DA3vTva/mPcsbxvmkUJGLbc2cB53U eEvzuYeRxhPDyMXUC8tc/mvml7nC8OlJ7WzsS2FHQVVfwUpXki3SbWcdZBmYg7Q3OuKy XXiGayem2q/ZTGrszdNeJQjaOUBr+omeZerkb0zhT6vp5sgxb8utO4/iZYTI99n+3cz4 YNRES4+kBdIdAC+jsKwwnwIcMss0jh+O4E/L2ZeGQnTK+OeW2qH2yei8uatNqx2/eXhF +WDcEcgpPkgnLRCv4KXUXPX+ryU2CMAXt8Vu9WQJD2Kr5oBapHnwhRLXKUHN5HzHAVjs KTyA== ARC-Authentication-Results: i=1; mx.google.com; spf=pass (google.com: best guess record for domain of linux-kernel-owner@vger.kernel.org designates 209.132.180.67 as permitted sender) smtp.mailfrom=linux-kernel-owner@vger.kernel.org Return-Path: Received: from vger.kernel.org (vger.kernel.org. [209.132.180.67]) by mx.google.com with ESMTP id 81-v6si24317279pfw.261.2018.09.04.04.45.23; Tue, 04 Sep 2018 04:45:23 -0700 (PDT) Received-SPF: pass (google.com: best guess record for domain of linux-kernel-owner@vger.kernel.org designates 209.132.180.67 as permitted sender) client-ip=209.132.180.67; Authentication-Results: mx.google.com; spf=pass (google.com: best guess record for domain of linux-kernel-owner@vger.kernel.org designates 209.132.180.67 as permitted sender) smtp.mailfrom=linux-kernel-owner@vger.kernel.org Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1727181AbeIDQKG (ORCPT + 32 others); Tue, 4 Sep 2018 12:10:06 -0400 Received: from usa-sjc-mx-foss1.foss.arm.com ([217.140.101.70]:41268 "EHLO foss.arm.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1726108AbeIDQKG (ORCPT ); Tue, 4 Sep 2018 12:10:06 -0400 Received: from usa-sjc-imap-foss1.foss.arm.com (unknown [10.72.51.249]) by usa-sjc-mx-foss1.foss.arm.com (Postfix) with ESMTP id B5C641596; Tue, 4 Sep 2018 04:45:19 -0700 (PDT) Received: from edgewater-inn.cambridge.arm.com (usa-sjc-imap-foss1.foss.arm.com [10.72.51.249]) by usa-sjc-imap-foss1.foss.arm.com (Postfix) with ESMTPA id 84BF43F703; Tue, 4 Sep 2018 04:45:19 -0700 (PDT) Received: by edgewater-inn.cambridge.arm.com (Postfix, from userid 1000) id 87D7D1AE2DE6; Tue, 4 Sep 2018 12:45:33 +0100 (BST) From: Will Deacon To: linux-kernel@vger.kernel.org Cc: peterz@infradead.org, npiggin@gmail.com, linux-mm@kvack.org, kirill.shutemov@linux.intel.com, akpm@linux-foundation.org, mhocko@suse.com, aneesh.kumar@linux.vnet.ibm.com Subject: [PATCH v2 1/5] asm-generic/tlb: Guard with #ifdef CONFIG_MMU Date: Tue, 4 Sep 2018 12:45:29 +0100 Message-Id: <1536061533-16188-2-git-send-email-will.deacon@arm.com> X-Mailer: git-send-email 2.1.4 In-Reply-To: <1536061533-16188-1-git-send-email-will.deacon@arm.com> References: <1536061533-16188-1-git-send-email-will.deacon@arm.com> Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org The inner workings of the mmu_gather-based TLB invalidation mechanism are not relevant to nommu configurations, so guard them with an #ifdef. This allows us to implement future functions using static inlines without breaking the build. Acked-by: Nicholas Piggin Acked-by: Peter Zijlstra (Intel) Signed-off-by: Will Deacon --- include/asm-generic/tlb.h | 4 ++++ 1 file changed, 4 insertions(+) -- 2.1.4 diff --git a/include/asm-generic/tlb.h b/include/asm-generic/tlb.h index b3353e21f3b3..a25e236f7a7f 100644 --- a/include/asm-generic/tlb.h +++ b/include/asm-generic/tlb.h @@ -20,6 +20,8 @@ #include #include +#ifdef CONFIG_MMU + #ifdef CONFIG_HAVE_RCU_TABLE_FREE /* * Semi RCU freeing of the page directories. @@ -310,6 +312,8 @@ static inline void tlb_remove_check_page_size_change(struct mmu_gather *tlb, #endif #endif +#endif /* CONFIG_MMU */ + #define tlb_migrate_finish(mm) do {} while (0) #endif /* _ASM_GENERIC__TLB_H */