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=-5.5 required=3.0 tests=DKIMWL_WL_HIGH,DKIM_SIGNED, DKIM_VALID,DKIM_VALID_AU,HEADER_FROM_DIFFERENT_DOMAINS,MAILING_LIST_MULTI, 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 5CD40C43387 for ; Thu, 3 Jan 2019 00:02:28 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id 2766120856 for ; Thu, 3 Jan 2019 00:02:28 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (1024-bit key) header.d=chromium.org header.i=@chromium.org header.b="IOCjtxOp" Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1726857AbfACAC1 (ORCPT ); Wed, 2 Jan 2019 19:02:27 -0500 Received: from mail-pg1-f194.google.com ([209.85.215.194]:34655 "EHLO mail-pg1-f194.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1725871AbfACAC1 (ORCPT ); Wed, 2 Jan 2019 19:02:27 -0500 Received: by mail-pg1-f194.google.com with SMTP id j10so15232275pga.1 for ; Wed, 02 Jan 2019 16:02:26 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=chromium.org; s=google; h=from:to:cc:subject:date:message-id; bh=XegKRqQNwELnHOVCfSkZODWxzEPM42Lqqg4XgBJw9IM=; b=IOCjtxOpeyUXTnR49867Q0wNXdVYqfK/qnMpT9rsXIx+oKbQe67XlpdHG8QYwL1l5T MKyJuyE9hEtZhbjbp8gb3NRir70pHA1JtEVCLn0yB8hm+w0tkfWAJvL9o7j7s0m95cg3 wdCa+r/tDzSbZXJ01/f0JaGnOGlbI06xxYwUY= 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=XegKRqQNwELnHOVCfSkZODWxzEPM42Lqqg4XgBJw9IM=; b=LRESRYMktBKZPdShb5vBITZwN1YtkhapZNLId2pWSco3RK6MdG2jovD0LWOIv634HH Xft4YXSdCK06HfcotKh2i0HO1Vmhgl4z6gBbZnp2k3K468rurNumCdE2tgxgvKtlaOoU 4lYkFnJoKgHn7WULF62w9BRdCV91IDIteOvy3bTPGH82SAGlF1rTTJxaQmZo8pmFijOn No8aEQSC+eIk3Uln55xu799ejSlNd4L4qcbKH3xhyBs27RvgYBwHTyMB57DIOm45SevT Eytn9PWj70crBo8CfLyUnihjs+kiLeOLrlUhGdyQpAukJCJayC5X+iRqxu0lIdT701MT Lzcg== X-Gm-Message-State: AJcUukfh5DRSxJA6zG2i+bPmuznBYrJ3PyJd32zwpAnPEoZBwrekUWDR NBwi3WJMUNZ9gN5tOr5RtThMeg== X-Google-Smtp-Source: ALg8bN7Qy7Int0Wh0u5MAq9VM1IwQjO52o+Xo7I3h0ywe9OYVZskiOfvR8zWKxCHfVYPA+qbdHLV/Q== X-Received: by 2002:a63:4665:: with SMTP id v37mr15454615pgk.425.1546473746517; Wed, 02 Jan 2019 16:02:26 -0800 (PST) Received: from evgreen2.mtv.corp.google.com ([2620:15c:202:201:ffda:7716:9afc:1301]) by smtp.gmail.com with ESMTPSA id u6sm60291199pgr.79.2019.01.02.16.02.25 (version=TLS1_2 cipher=ECDHE-RSA-AES128-SHA bits=128/128); Wed, 02 Jan 2019 16:02:25 -0800 (PST) From: Evan Green To: Andy Gross Cc: Bjorn Andersson , Brian Norris , Ben Chan , Evan Green , linux-arm-msm@vger.kernel.org, David Brown , linux-kernel@vger.kernel.org Subject: [PATCH v3 0/2] soc: qcom: rmtfs-mem: Support non-root rmtfs daemons Date: Wed, 2 Jan 2019 16:02:11 -0800 Message-Id: <20190103000213.230652-1-evgreen@chromium.org> X-Mailer: git-send-email 2.18.1 Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org This series contains minor fixes needed to better support running an rmtfs daemon from an unprivileged process: - Enable uevents on the child character device by adding a struct class to the parent. I needed these so that I could change the ownership of /dev/qcom_rmtfs_mem1, and drove myself crazy trying to understand why my udev rules never fired. - Enable access to phys_addr and size sysfs attributes. The daemon needs to read these, and they don't really contain anything sensitive, so expose them. I still need CAP_NET_ADMIN to be able to bind to the right qrtr port, but at least with these changes I can run as a different user, and drop all other privileges. Changes in v3: - Removed spurious whitespace changes (Brian, Bjorn) Changes in v2: - Moved class registration/deregistration into init/exit routines (Brian) Evan Green (2): soc: qcom: rmtfs-mem: Add class to enable uevents soc: qcom: rmtfs-mem: Make sysfs attributes world-readable drivers/soc/qcom/rmtfs_mem.c | 32 ++++++++++++++++++++++++-------- 1 file changed, 24 insertions(+), 8 deletions(-) -- 2.18.1