From patchwork Mon Aug 26 15:01:53 2019 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Greg Kroah-Hartman X-Patchwork-Id: 1153247 Return-Path: X-Original-To: patchwork-incoming@ozlabs.org Delivered-To: patchwork-incoming@ozlabs.org Received: from lists.ozlabs.org (lists.ozlabs.org [203.11.71.2]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange X25519 server-signature RSA-PSS (4096 bits)) (No client certificate requested) by ozlabs.org (Postfix) with ESMTPS id 46HFg83hVjz9s7T for ; Tue, 27 Aug 2019 01:05:24 +1000 (AEST) Authentication-Results: ozlabs.org; dmarc=none (p=none dis=none) header.from=linuxfoundation.org Authentication-Results: ozlabs.org; dkim=fail reason="signature verification failed" (1024-bit key; unprotected) header.d=kernel.org header.i=@kernel.org header.b="rCskg3zW"; dkim-atps=neutral Received: from bilbo.ozlabs.org (lists.ozlabs.org [IPv6:2401:3900:2:1::3]) by lists.ozlabs.org (Postfix) with ESMTP id 46HFg736LFzDql9 for ; Tue, 27 Aug 2019 01:05:23 +1000 (AEST) X-Original-To: linuxppc-dev@lists.ozlabs.org Delivered-To: linuxppc-dev@lists.ozlabs.org Received: from ozlabs.org (bilbo.ozlabs.org [203.11.71.1]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange X25519 server-signature RSA-PSS (2048 bits)) (No client certificate requested) by lists.ozlabs.org (Postfix) with ESMTPS id 46HFbH3HhszDq6J for ; Tue, 27 Aug 2019 01:02:03 +1000 (AEST) Authentication-Results: lists.ozlabs.org; dmarc=none (p=none dis=none) header.from=linuxfoundation.org Authentication-Results: lists.ozlabs.org; dkim=pass (1024-bit key; unprotected) header.d=kernel.org header.i=@kernel.org header.b="rCskg3zW"; dkim-atps=neutral Received: from ozlabs.org (bilbo.ozlabs.org [203.11.71.1]) by bilbo.ozlabs.org (Postfix) with ESMTP id 46HFbF0XfDz8swq for ; Tue, 27 Aug 2019 01:02:01 +1000 (AEST) Received: by ozlabs.org (Postfix) id 46HFbD3znPz9sN4; Tue, 27 Aug 2019 01:02:00 +1000 (AEST) Delivered-To: linuxppc-dev@ozlabs.org Authentication-Results: ozlabs.org; spf=pass (mailfrom) smtp.mailfrom=linuxfoundation.org (client-ip=198.145.29.99; helo=mail.kernel.org; envelope-from=gregkh@linuxfoundation.org; receiver=) Authentication-Results: ozlabs.org; dmarc=none (p=none dis=none) header.from=linuxfoundation.org Authentication-Results: ozlabs.org; dkim=pass (1024-bit key; unprotected) header.d=kernel.org header.i=@kernel.org header.b="rCskg3zW"; dkim-atps=neutral Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by ozlabs.org (Postfix) with ESMTPS id 46HFbC6bbgz9sMr; Tue, 27 Aug 2019 01:01:58 +1000 (AEST) Received: from localhost (83-86-89-107.cable.dynamic.v4.ziggo.nl [83.86.89.107]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPSA id 845CD23407; Mon, 26 Aug 2019 15:01:54 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=default; t=1566831716; bh=I6e2z6xG6NNp+2Wpt9kGj+eQ5xIpFiafpE0oAydyqz4=; h=Date:From:To:Cc:Subject:References:In-Reply-To:From; b=rCskg3zWYS8sUfIN6SpZQxIOcvVswWxnixVypxSGkkK4sWFtFSIsWK8y001UJ3VVq YwDsf8c4gc4K/d7W/i03gofw7+kYrrB1Yv+9KAveARF2SiykU7hsc4ZC9ryTJQzK8K kzHLkzUW39HoCAGUes5rLeWxtjERSq0yjP8ranhY= Date: Mon, 26 Aug 2019 17:01:53 +0200 From: Greg Kroah-Hartman To: Nayna Subject: [PATCH] sysfs: add BIN_ATTR_WO() macro Message-ID: <20190826150153.GD18418@kroah.com> References: <1566825818-9731-1-git-send-email-nayna@linux.ibm.com> <1566825818-9731-3-git-send-email-nayna@linux.ibm.com> <20190826140131.GA15270@kroah.com> MIME-Version: 1.0 Content-Disposition: inline In-Reply-To: User-Agent: Mutt/1.12.1 (2019-06-15) X-BeenThere: linuxppc-dev@lists.ozlabs.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: Linux on PowerPC Developers Mail List List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: linux-efi@vger.kernel.org, Ard Biesheuvel , Eric Ricther , Nayna Jain , linux-kernel@vger.kernel.org, Mimi Zohar , Claudio Carvalho , Matthew Garret , linuxppc-dev@ozlabs.org, Paul Mackerras , Jeremy Kerr , Elaine Palmer , Oliver O'Halloran , linux-integrity@vger.kernel.org, George Wilson Errors-To: linuxppc-dev-bounces+patchwork-incoming=ozlabs.org@lists.ozlabs.org Sender: "Linuxppc-dev" This variant was missing from sysfs.h, I guess no one noticed it before. Turns out the powerpc secure variable code can use it, so add it to the tree for it, and potentially others to take advantage of, instead of open-coding it. Reported-by: Nayna Jain Signed-off-by: Greg Kroah-Hartman --- I'll queue this up to my tree for 5.4-rc1, but if you want to take this in your tree earlier, feel free to do so. include/linux/sysfs.h | 9 +++++++++ 1 file changed, 9 insertions(+) diff --git a/include/linux/sysfs.h b/include/linux/sysfs.h index 965236795750..5420817ed317 100644 --- a/include/linux/sysfs.h +++ b/include/linux/sysfs.h @@ -196,6 +196,12 @@ struct bin_attribute { .size = _size, \ } +#define __BIN_ATTR_WO(_name) { \ + .attr = { .name = __stringify(_name), .mode = 0200 }, \ + .store = _name##_store, \ + .size = _size, \ +} + #define __BIN_ATTR_RW(_name, _size) \ __BIN_ATTR(_name, 0644, _name##_read, _name##_write, _size) @@ -208,6 +214,9 @@ struct bin_attribute bin_attr_##_name = __BIN_ATTR(_name, _mode, _read, \ #define BIN_ATTR_RO(_name, _size) \ struct bin_attribute bin_attr_##_name = __BIN_ATTR_RO(_name, _size) +#define BIN_ATTR_WO(_name, _size) \ +struct bin_attribute bin_attr_##_name = __BIN_ATTR_WO(_name, _size) + #define BIN_ATTR_RW(_name, _size) \ struct bin_attribute bin_attr_##_name = __BIN_ATTR_RW(_name, _size)