From patchwork Sat Sep 15 00:37:20 2018 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Suman Anna X-Patchwork-Id: 10601327 Return-Path: Received: from mail.wl.linuxfoundation.org (pdx-wl-mail.web.codeaurora.org [172.30.200.125]) by pdx-korg-patchwork-2.web.codeaurora.org (Postfix) with ESMTP id 12D6F112B for ; Sat, 15 Sep 2018 00:37:55 +0000 (UTC) Received: from mail.wl.linuxfoundation.org (localhost [127.0.0.1]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id EBDE12B77E for ; Sat, 15 Sep 2018 00:37:54 +0000 (UTC) Received: by mail.wl.linuxfoundation.org (Postfix, from userid 486) id E073C2B789; Sat, 15 Sep 2018 00:37:54 +0000 (UTC) X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on pdx-wl-mail.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-8.0 required=2.0 tests=BAYES_00,DKIM_SIGNED, DKIM_VALID,DKIM_VALID_AU,MAILING_LIST_MULTI,RCVD_IN_DNSWL_HI autolearn=ham version=3.3.1 Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id 8D1422B77E for ; Sat, 15 Sep 2018 00:37:54 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1726619AbeIOFyT (ORCPT ); Sat, 15 Sep 2018 01:54:19 -0400 Received: from fllv0015.ext.ti.com ([198.47.19.141]:37360 "EHLO fllv0015.ext.ti.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1725832AbeIOFyS (ORCPT ); Sat, 15 Sep 2018 01:54:18 -0400 Received: from dflxv15.itg.ti.com ([128.247.5.124]) by fllv0015.ext.ti.com (8.15.2/8.15.2) with ESMTP id w8F0bR6T071581; Fri, 14 Sep 2018 19:37:27 -0500 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=ti.com; s=ti-com-17Q1; t=1536971847; bh=KtVtTFHcaHVtJCxf71DE/bjrheZLypwGVv0Ot5VUQTI=; h=From:To:CC:Subject:Date; b=kpYVXz1nTk47qUK20UOPTUp4JTKYrTxA51yvyH207E6UuvNylYAdhKoGDy80OWc5X UBLWHp7rE5nnMO1QjxvZCDaF+yVtEiRgGlCh12hqJC3dPPSIm6BVgY9yAiVsVftnge F0+vmemr9IScCTKxOuXHrX1qzCsUrbq04q9qI31I= Received: from DLEE115.ent.ti.com (dlee115.ent.ti.com [157.170.170.26]) by dflxv15.itg.ti.com (8.14.3/8.13.8) with ESMTP id w8F0bRwL023585; Fri, 14 Sep 2018 19:37:27 -0500 Received: from DLEE101.ent.ti.com (157.170.170.31) by DLEE115.ent.ti.com (157.170.170.26) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_128_CBC_SHA256_P256) id 15.1.1466.3; Fri, 14 Sep 2018 19:37:27 -0500 Received: from dflp33.itg.ti.com (10.64.6.16) by DLEE101.ent.ti.com (157.170.170.31) with Microsoft SMTP Server (version=TLS1_0, cipher=TLS_RSA_WITH_AES_256_CBC_SHA) id 15.1.1466.3 via Frontend Transport; Fri, 14 Sep 2018 19:37:27 -0500 Received: from legion.dal.design.ti.com (legion.dal.design.ti.com [128.247.22.53]) by dflp33.itg.ti.com (8.14.3/8.13.8) with ESMTP id w8F0bRIi007366; Fri, 14 Sep 2018 19:37:27 -0500 Received: from localhost (irmo.dhcp.ti.com [128.247.58.153]) by legion.dal.design.ti.com (8.11.7p1+Sun/8.11.7) with ESMTP id w8F0bRx13335; Fri, 14 Sep 2018 19:37:27 -0500 (CDT) From: Suman Anna To: Bjorn Andersson CC: Ohad Ben-Cohen , Loic Pallardy , Arnaud Pouliquen , , , Suman Anna Subject: [PATCH 0/5] remoteproc sysfs fixes/improvements Date: Fri, 14 Sep 2018 19:37:20 -0500 Message-ID: <20180915003725.17549-1-s-anna@ti.com> X-Mailer: git-send-email 2.18.0 MIME-Version: 1.0 X-EXCLAIMER-MD-CONFIG: e1e8a2fd-e40a-4ac6-ac9b-f7e9cc9ee180 Sender: linux-remoteproc-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-remoteproc@vger.kernel.org X-Virus-Scanned: ClamAV using ClamSMTP Hi Bjorn, The following series includes couple of fixes and improvements associated with the sysfs interfaces. Patches are based on top of 4.19-rc1. The first 3 patches are independent of each other. Following is the patch summary: - Patch 1 fixes an issue with unbalanced sysfs start/stop and module removal - Patch 2 adds a minor additional check on firmware name being echoed into the sysfs file - Patch 3 is a minor kerneldoc fix. - Patches 4 and 5 introduce a new request denial to sysfs interfaces to not allow userspace to meddle with a remoteproc client driven boot flow, and usage of it by Wkup M3 remoteproc driver regards Suman Suman Anna (5): remoteproc: Fix unbalanced boot with sysfs for no auto-boot rprocs remoteproc: Check for NULL firmwares in sysfs interface remoteproc: Add missing kernel-doc comment for auto-boot remoteproc: Introduce deny_sysfs_ops flag remoteproc/wkup_m3: Set deny_sysfs_ops flag drivers/remoteproc/remoteproc_sysfs.c | 29 ++++++++++++++++++++++++++- drivers/remoteproc/wkup_m3_rproc.c | 1 + include/linux/remoteproc.h | 3 +++ 3 files changed, 32 insertions(+), 1 deletion(-)