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=-9.9 required=3.0 tests=DKIM_SIGNED,DKIM_VALID, DKIM_VALID_AU,HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_PATCH,MAILING_LIST_MULTI, SIGNED_OFF_BY,SPF_HELO_NONE,SPF_PASS,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 BFFC5C4CECD for ; Tue, 17 Sep 2019 20:30:45 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id 79B38216C8 for ; Tue, 17 Sep 2019 20:30:45 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (2048-bit key) header.d=lca.pw header.i=@lca.pw header.b="b2heVtMa" Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1728565AbfIQUao (ORCPT ); Tue, 17 Sep 2019 16:30:44 -0400 Received: from mail-qk1-f196.google.com ([209.85.222.196]:43568 "EHLO mail-qk1-f196.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1726636AbfIQUao (ORCPT ); Tue, 17 Sep 2019 16:30:44 -0400 Received: by mail-qk1-f196.google.com with SMTP id h126so5459150qke.10 for ; Tue, 17 Sep 2019 13:30:43 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=lca.pw; s=google; h=from:to:cc:subject:date:message-id; bh=FapF/w8V6L5P4RP46nAQFrAdDN4jwAlxC54JDkAvfWE=; b=b2heVtMaAE//iiVUcKsZr0w7awdslPkqyQbYNyjGPHEL5W+LgsLzJdHgLusSCvcjFf YvSE5Y384otm0G5eZOgbTalFDAnlo01PRpnbLoB2ayOgzzTvNYCOnP4IGWEDYDbQ4qVD dLFolbhNPH4v6x1Pps+vdpjxTD8MKBvF9f5WuyV4U/4gF4NrkK8t59Lk1P6YK3FtQTW5 hkfqNyCR2qrlhcy5XdsCerD3vDypFmfHqqZDSITyUW3Bpfw6Pwbmq7Wfcg/fHMOiKMxO PypYyKoxR5XSuCydNmltfumpdY8vQfvEYwhwI+VzGz4AnmdtC70mTm1ttcp//WcrmOwp Cytw== 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; bh=FapF/w8V6L5P4RP46nAQFrAdDN4jwAlxC54JDkAvfWE=; b=H2BVl81DZ+X6WTFpuKdzFBkj10EPes0dwqBz3sHbAmETDgjwSaOpbPRPYyGpJQMe6D xYmw3hhCEb/VbuXdKS7U2x0BE6ycNxHlXKOWVcrgAYvGtmNEHr8e4JIouZ++xeeOFUK/ gSWpjjA7SuOsTu38bUs3am5kEoXaePaaSNyTj36CL+4JhKcP3XKoGjY0KjQuPUuqozNT GjfbXpPbEpV4i8NCgMMIMbD0CM/cvmIfiXqRQb1uXamf+sM5hiWAQPnHkNnaykbc/pRZ YW6MM0MllaZ98my08ZdTZCX56ZrIJhHA12xjhrvZQHBzOVBgaN9u55+VCR8u4pyhRVBF K6pg== X-Gm-Message-State: APjAAAX8piPZLSwzhowggub8NS2v7ULvonlNv/jghMNaI69wwD03t7pJ 0tCrn8CM9ft868o13v6A1mYKsL8Tx3w= X-Google-Smtp-Source: APXvYqxAmisQfB6dzZqw466gLLRXufi21otNJ/5du7EZOaLPbhdALpCQOrklxXZW9Tlgu7tiOQD7Gg== X-Received: by 2002:a37:9d93:: with SMTP id g141mr427405qke.188.1568752243366; Tue, 17 Sep 2019 13:30:43 -0700 (PDT) Received: from qcai.nay.com (nat-pool-bos-t.redhat.com. [66.187.233.206]) by smtp.gmail.com with ESMTPSA id 139sm1822874qkf.14.2019.09.17.13.30.42 (version=TLS1_2 cipher=ECDHE-RSA-AES128-GCM-SHA256 bits=128/128); Tue, 17 Sep 2019 13:30:42 -0700 (PDT) From: Qian Cai To: akpm@linux-foundation.org Cc: rientjes@google.com, cl@linux.com, penberg@kernel.org, linux-mm@kvack.org, linux-kernel@vger.kernel.org, Qian Cai Subject: [PATCH] mm/slub: fix -Wunused-function compiler warnings Date: Tue, 17 Sep 2019 16:30:32 -0400 Message-Id: <1568752232-5094-1-git-send-email-cai@lca.pw> X-Mailer: git-send-email 1.8.3.1 Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org tid_to_cpu() and tid_to_event() are only used in note_cmpxchg_failure() when SLUB_DEBUG_CMPXCHG=y, so when SLUB_DEBUG_CMPXCHG=n by default, Clang will complain that those unused functions. Signed-off-by: Qian Cai --- mm/slub.c | 2 ++ 1 file changed, 2 insertions(+) diff --git a/mm/slub.c b/mm/slub.c index 8834563cdb4b..49739f005b4f 100644 --- a/mm/slub.c +++ b/mm/slub.c @@ -2004,6 +2004,7 @@ static inline unsigned long next_tid(unsigned long tid) return tid + TID_STEP; } +#ifdef SLUB_DEBUG_CMPXCHG static inline unsigned int tid_to_cpu(unsigned long tid) { return tid % TID_STEP; @@ -2013,6 +2014,7 @@ static inline unsigned long tid_to_event(unsigned long tid) { return tid / TID_STEP; } +#endif static inline unsigned int init_tid(int cpu) { -- 1.8.3.1