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=-2.5 required=3.0 tests=DKIM_SIGNED,DKIM_VALID, DKIM_VALID_AU,FREEMAIL_FORGED_FROMDOMAIN,FREEMAIL_FROM, HEADER_FROM_DIFFERENT_DOMAINS,MAILING_LIST_MULTI,SPF_PASS,USER_AGENT_MUTT 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 CC7ACC43219 for ; Fri, 3 May 2019 03:33:52 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id 951442075E for ; Fri, 3 May 2019 03:33:52 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (2048-bit key) header.d=gmail.com header.i=@gmail.com header.b="sBotVlkf" Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1726304AbfECDdq (ORCPT ); Thu, 2 May 2019 23:33:46 -0400 Received: from mail-ed1-f67.google.com ([209.85.208.67]:42518 "EHLO mail-ed1-f67.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1726114AbfECDdp (ORCPT ); Thu, 2 May 2019 23:33:45 -0400 Received: by mail-ed1-f67.google.com with SMTP id l25so4348830eda.9 for ; Thu, 02 May 2019 20:33:44 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20161025; h=date:from:to:cc:subject:message-id:mime-version:content-disposition :user-agent; bh=RdojDANAJ6rzclEPLAA4FdcSP1GiFYCSI8+a3mJzXmI=; b=sBotVlkfKKZhxUaYy9XvO+EUUTHs8VDdZ9d2b8+7Yu8V+9yfbQjMmQfIVL46zxU35N CIyqpEit6G/j5dqs20bTv8PB6UYJmiEpyn379hyP63eOmsh7BRJv3pxXN9HCnWzs76MU GSOw4PV1v2wwKP3COFu3mZZzMa3iJWwQzczQ8SO1jp4GD48+lyNnt4txrqpJDyVo7hNP jLEFyEMhQ71v7Dfk8i9nazI6dgcPNDMbYkImEVUL/PD+XW/W1SpgmrwP2YGwin/QdTES r9Lrvb33kLOfYwX2/tSZmE5R4az/pFs/xdCsQR9Vathyz36YesXZFJDzLkKoOlJ4hEny 6r0Q== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:date:from:to:cc:subject:message-id:mime-version :content-disposition:user-agent; bh=RdojDANAJ6rzclEPLAA4FdcSP1GiFYCSI8+a3mJzXmI=; b=O1QI/NKbNSryk20rls+PYsKKVjlbw41fQyQTScI0T7w6UBsTdccPQ8CN3PPmkSYDeC ayhKp0FCGArN2cv7/z92FVafQl4C6pbAabacRzDc1QM3NOywL9r0xjlEkK3pmmNzrvs5 kdESK3PcFMsXUijywwVOUsMxleAnNwxCuf4fLv8UGbBAL0H4re7DwnDaBPly9X4o5Yfj OONPfKeEolN1O9IjMSi4ZjUoRzA7lyHkuc5bHI7mI8wjs5Dv4E19t0WDL5SVr12LIw2+ UzmINcqXMoZMMzA0mQIwuuQ+7gye0ijQ1vHxxmEvnIR6NExIcLcvOhC2oqBwVAvaBl9y 0ZrQ== X-Gm-Message-State: APjAAAUNoMkJ+sGnw1KMEw0Y0YN8xrfC/WwYC45H2a35uUmFIdDqtr7I znPK49YTD3tANWXPX9DEfOE= X-Google-Smtp-Source: APXvYqxoOBfWgFA3QZ5YcV5wYRnq9lz5at6L+Nl0JyBStbS6YGlUx5uUsozDEn1Jy8a3c7kAKW5S5w== X-Received: by 2002:a50:8c03:: with SMTP id p3mr5401146edp.267.1556854423921; Thu, 02 May 2019 20:33:43 -0700 (PDT) Received: from archlinux-i9 ([2a01:4f9:2b:2b84::2]) by smtp.gmail.com with ESMTPSA id g32sm258988ede.88.2019.05.02.20.33.42 (version=TLS1_3 cipher=AEAD-AES256-GCM-SHA384 bits=256/256); Thu, 02 May 2019 20:33:42 -0700 (PDT) Date: Thu, 2 May 2019 20:33:40 -0700 From: Nathan Chancellor To: Cliff Whickman , Robin Holt Cc: Arnd Bergmann , Greg Kroah-Hartman , linux-kernel@vger.kernel.org, Nick Desaulniers , clang-built-linux@googlegroups.com Subject: -Wuninitialized warning in drivers/misc/sgi-xp/xpc_partition.c Message-ID: <20190503033340.GA7980@archlinux-i9> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline User-Agent: Mutt/1.11.4 (2019-03-13) Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Hi all, When building with -Wuninitialized, Clang warns: drivers/misc/sgi-xp/xpc_partition.c:73:14: warning: variable 'buf' is uninitialized when used within its own initialization [-Wuninitialized] void *buf = buf; ~~~ ^~~ 1 warning generated. I am not really sure how to properly initialize buf in this instance. I would assume it would involve xpc_kmalloc_cacheline_aligned like further down in the function but maybe not, this function isn't entirely clear. Could we get your input, this is one of the last warnings I see in a few allyesconfig builds. Thanks, Nathan