From patchwork Tue Aug 11 11:03:44 2015 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Srinivas Kandagatla X-Patchwork-Id: 6991551 X-Patchwork-Delegate: agross@codeaurora.org Return-Path: X-Original-To: patchwork-linux-arm-msm@patchwork.kernel.org Delivered-To: patchwork-parsemail@patchwork1.web.kernel.org Received: from mail.kernel.org (mail.kernel.org [198.145.29.136]) by patchwork1.web.kernel.org (Postfix) with ESMTP id F3F499F358 for ; Tue, 11 Aug 2015 11:04:21 +0000 (UTC) Received: from mail.kernel.org (localhost [127.0.0.1]) by mail.kernel.org (Postfix) with ESMTP id 1F99620430 for ; Tue, 11 Aug 2015 11:04:21 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id 44225205C2 for ; Tue, 11 Aug 2015 11:04:19 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S964927AbbHKLEL (ORCPT ); Tue, 11 Aug 2015 07:04:11 -0400 Received: from mail-wi0-f181.google.com ([209.85.212.181]:38076 "EHLO mail-wi0-f181.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S964926AbbHKLEK (ORCPT ); Tue, 11 Aug 2015 07:04:10 -0400 Received: by wicja10 with SMTP id ja10so63725997wic.1 for ; Tue, 11 Aug 2015 04:03:48 -0700 (PDT) X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20130820; h=x-gm-message-state:from:to:cc:subject:date:message-id:in-reply-to :references; bh=lsXAr3pblCg5RcjkL18WXU1qWMk3KLKoCOwn02SmKn4=; b=JSOgnQXhMsL7kTBMCh3mivcf3/zyHqnzJxzxUKc3ryPjvWCjMoyX3/btRJfucQiOzV FU2/P+B/hSLI840n3/HgtWHMd16CjPbA7Use0sfOhBGYgwiH8i9GWmAvg3WfRD+UeS3E VMuSvnOXLBHGAiMrS9+rS7s5BRg78yRfBABZAwYHhA3r6X4d1LeTzfpCPrXW5tjpRDwx XVyjjgIugftXx2w+/08nZ64729Qk9U185ORYXf2Eme2G7lzUaw0lNv6mE3D5m1DNidyM Vrn7R12PNBggXHUXDBe9MRdbttF/Quo2bOCzgH2wNvqnhjMZIdflyaDPWRvYr1jpwwcm 7BHg== X-Gm-Message-State: ALoCoQnd1RXAC4CaCMwFLzKRA2n5CPmxUVMsmPNBtZ+GfKTyCtH3u7QW0oQLPG21UE9N6Df8ahQb X-Received: by 10.194.209.167 with SMTP id mn7mr52935272wjc.64.1439291028392; Tue, 11 Aug 2015 04:03:48 -0700 (PDT) Received: from localhost.localdomain (host-92-13-246-184.as43234.net. [92.13.246.184]) by smtp.gmail.com with ESMTPSA id gj13sm2841255wic.22.2015.08.11.04.03.47 (version=TLSv1.2 cipher=ECDHE-RSA-AES128-SHA bits=128/128); Tue, 11 Aug 2015 04:03:47 -0700 (PDT) From: Srinivas Kandagatla To: Greg Kroah-Hartman Cc: Andrew Lunn , wxt@rock-chips.com, linux-api@vger.kernel.org, Rob Herring , sboyd@codeaurora.org, arnd@arndb.de, linux-arm-kernel@lists.infradead.org, khilman@kernel.org, s.hauer@pengutronix.de, linux-kernel@vger.kernel.org, linux-arm-msm@vger.kernel.org, mporter@konsulko.com, pantelis.antoniou@konsulko.com, devicetree@vger.kernel.org, Mark Brown , maitysanchayan@gmail.com, p.zabel@pengutronix.de, Srinivas Kandagatla Subject: [PATCH RFC 3/3] nvmem: add permission flags in nvmem_config Date: Tue, 11 Aug 2015 12:03:44 +0100 Message-Id: <1439291024-18375-1-git-send-email-srinivas.kandagatla@linaro.org> X-Mailer: git-send-email 1.9.1 In-Reply-To: <1439290931-18232-1-git-send-email-srinivas.kandagatla@linaro.org> References: <1439290931-18232-1-git-send-email-srinivas.kandagatla@linaro.org> Sender: linux-arm-msm-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-arm-msm@vger.kernel.org X-Spam-Status: No, score=-7.1 required=5.0 tests=BAYES_00, RCVD_IN_DNSWL_HI, RP_MATCHES_RCVD, UNPARSEABLE_RELAY autolearn=ham version=3.3.1 X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on mail.kernel.org X-Virus-Scanned: ClamAV using ClamSMTP This patch adds perm variable to nvmem_config structure which will allow providers to specify the permissions required for the sysfs binary file. This permission is applied on top of root-only access permissions set by the core. Signed-off-by: Srinivas Kandagatla --- drivers/nvmem/core.c | 1 + include/linux/nvmem-provider.h | 1 + 2 files changed, 2 insertions(+) diff --git a/drivers/nvmem/core.c b/drivers/nvmem/core.c index 414ed23..7481387 100644 --- a/drivers/nvmem/core.c +++ b/drivers/nvmem/core.c @@ -312,6 +312,7 @@ struct nvmem_device *nvmem_register(const struct nvmem_config *config) config->read_only; nvmem->bin = bin_attr_template; nvmem->bin.attr.mode = nvmem->read_only ? : (S_IRUSR | S_IWUSR); + nvmem->bin.attr.mode |= config->perm; nvmem->bin.size = nvmem->size; device_initialize(&nvmem->dev); diff --git a/include/linux/nvmem-provider.h b/include/linux/nvmem-provider.h index 0b68caf..de9a61f 100644 --- a/include/linux/nvmem-provider.h +++ b/include/linux/nvmem-provider.h @@ -23,6 +23,7 @@ struct nvmem_config { const struct nvmem_cell_info *cells; int ncells; bool read_only; + u16 perm; /* visibility in sysfs */ }; #if IS_ENABLED(CONFIG_NVMEM)