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=-8.6 required=3.0 tests=DKIM_SIGNED,DKIM_VALID, DKIM_VALID_AU,FREEMAIL_FORGED_FROMDOMAIN,FREEMAIL_FROM, 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 3C55DC48BD9 for ; Thu, 27 Jun 2019 05:04:31 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id 0E360218A2 for ; Thu, 27 Jun 2019 05:04:31 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (2048-bit key) header.d=gmail.com header.i=@gmail.com header.b="X7rsIl/L" Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1727280AbfF0FE3 (ORCPT ); Thu, 27 Jun 2019 01:04:29 -0400 Received: from mail-ot1-f67.google.com ([209.85.210.67]:46769 "EHLO mail-ot1-f67.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1727138AbfF0FE3 (ORCPT ); Thu, 27 Jun 2019 01:04:29 -0400 Received: by mail-ot1-f67.google.com with SMTP id z23so916049ote.13 for ; Wed, 26 Jun 2019 22:04:28 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20161025; h=from:to:cc:subject:date:message-id:in-reply-to:references :mime-version:content-transfer-encoding; bh=FWDmwpCTBQqLpDz0dRgn3YK1CHaVNxNkpin7tUBvoI8=; b=X7rsIl/Lss2UF+YgRBSZj01GMxecdMu3tEiMfl78ztSoQvqZHvCjEzk7tQc9zNb/IU dESlmnXn3eUZ9wzUSyVZis5KvkU9oyK3IlpkbQyXR45Oo8eWchGmS9pVGSSn5wvXvpaF NDB6eaeZy3GcUVDWhherRLmFoQS63A/rjfSh0E6QnFdQOSjsmpfFBQHqjzCu2CJ1skT1 QnszDP864mFYD+lYyRntgWflyUB72yb34+rOcjJailHP2qYD7TiLaRS7X7xutNCA2FZy 5xt7TKICFtWbVSCFq7QWILZJCkak+C2W1szmI616AYLR+ZQy46en3VpLr23eMQ4inwsG Gd3Q== 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:in-reply-to :references:mime-version:content-transfer-encoding; bh=FWDmwpCTBQqLpDz0dRgn3YK1CHaVNxNkpin7tUBvoI8=; b=oklS6wgznk9/Ap+hn7BeLduLhdy0hBH0q1V6k0gCjqffzCGRGBKf+ax6zA96I0sOet ltURF3l4HZN5rBIJpcdKmnXTQMY7qBYl9lBJ5KltvTHtx+JNp8G5pqWY9cwCDB8K+uU8 a9PP68H5BVJ3SHseXkkWwnYandeq2BfCsWcmJEusOl6QBxOx1yBnoxNjh2Aj3XrVbqEF lEIe8A7rsiIGGFQBrn0JZnVAx2JOzGV1MUGM7HR68/RodLGV+iqf4phy1P/LdFaZg9qO 4zhIsRgfsxIKcQRgRPi1CEs01Q8GPjOd0+Bp4oNbQLPri+HfA2mZ+EdnllbE0JYlUf7i WlyA== X-Gm-Message-State: APjAAAWJJJDBBcbaI1VJKn3jfBK5/8wpfKr7rWly7heE2DWFvF0DE5/v ed/e28cW1On+02VlQAU6hT8= X-Google-Smtp-Source: APXvYqxrLE7yZDnXYq8JzwdSU6DtCWyCSdlSmxNA0lehODTbPsdrtJtZT2zNCR23dGuXBCCxzQHcIw== X-Received: by 2002:a9d:774a:: with SMTP id t10mr1613384otl.228.1561611868344; Wed, 26 Jun 2019 22:04:28 -0700 (PDT) Received: from rYz3n.attlocal.net ([2600:1700:210:3790::48]) by smtp.googlemail.com with ESMTPSA id v18sm613318otn.17.2019.06.26.22.04.27 (version=TLS1_3 cipher=AEAD-AES256-GCM-SHA384 bits=256/256); Wed, 26 Jun 2019 22:04:27 -0700 (PDT) From: Jiunn Chang To: skhan@linuxfoundation.org Cc: linux-kernel-mentees@lists.linuxfoundation.org, dri-devel@lists.freedesktop.org, linux-kernel@vger.kernel.org, oded.gabbay@gmail.com Subject: [Linux-kernel-mentees][PATCH v3] drm/amdkfd: Fix undefined behavior in bit shift Date: Thu, 27 Jun 2019 00:04:25 -0500 Message-Id: <20190627050426.17925-2-c0d1n61at3@gmail.com> X-Mailer: git-send-email 2.22.0 In-Reply-To: <20190627032532.18374-3-c0d1n61at3@gmail.com> References: <20190627032532.18374-3-c0d1n61at3@gmail.com> MIME-Version: 1.0 Content-Transfer-Encoding: 8bit Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Shifting signed 32-bit value by 31 bits is undefined. Changing most significant bit to unsigned. Signed-off-by: Jiunn Chang --- Changes included in v3: - remove change log from patch description Changes included in v2: - use subsystem specific subject lines - CC required mailing lists include/uapi/linux/kfd_ioctl.h | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/include/uapi/linux/kfd_ioctl.h b/include/uapi/linux/kfd_ioctl.h index dc067ed0b72d..ae5669272303 100644 --- a/include/uapi/linux/kfd_ioctl.h +++ b/include/uapi/linux/kfd_ioctl.h @@ -339,7 +339,7 @@ struct kfd_ioctl_acquire_vm_args { #define KFD_IOC_ALLOC_MEM_FLAGS_USERPTR (1 << 2) #define KFD_IOC_ALLOC_MEM_FLAGS_DOORBELL (1 << 3) /* Allocation flags: attributes/access options */ -#define KFD_IOC_ALLOC_MEM_FLAGS_WRITABLE (1 << 31) +#define KFD_IOC_ALLOC_MEM_FLAGS_WRITABLE (1U << 31) #define KFD_IOC_ALLOC_MEM_FLAGS_EXECUTABLE (1 << 30) #define KFD_IOC_ALLOC_MEM_FLAGS_PUBLIC (1 << 29) #define KFD_IOC_ALLOC_MEM_FLAGS_NO_SUBSTITUTE (1 << 28) -- 2.22.0