From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1753363Ab3HUWrP (ORCPT ); Wed, 21 Aug 2013 18:47:15 -0400 Received: from mail.linuxfoundation.org ([140.211.169.12]:36053 "EHLO mail.linuxfoundation.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1752952Ab3HUWpY (ORCPT ); Wed, 21 Aug 2013 18:45:24 -0400 From: Greg Kroah-Hartman To: linux-kernel@vger.kernel.org Cc: Greg Kroah-Hartman , Evgeniy Polyakov , Alexander Stein , Andrew Morton , Wei Yongjun Subject: [PATCH 11/11] w1: slaves: w1_ds2781: convert to use w1_family_ops.groups Date: Wed, 21 Aug 2013 15:45:05 -0700 Message-Id: <1377125105-25388-11-git-send-email-gregkh@linuxfoundation.org> X-Mailer: git-send-email 1.8.3.rc0.20.gb99dd2e In-Reply-To: <1377125105-25388-1-git-send-email-gregkh@linuxfoundation.org> References: <1377125105-25388-1-git-send-email-gregkh@linuxfoundation.org> Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org This moves the sysfs file creation/removal to the w1 core by using the .groups field, saving code in the slave driver. Cc: Evgeniy Polyakov Cc: Alexander Stein Cc: Andrew Morton Cc: Wei Yongjun Signed-off-by: Greg Kroah-Hartman --- drivers/w1/slaves/w1_ds2781.c | 36 ++++++++++++++++++------------------ 1 file changed, 18 insertions(+), 18 deletions(-) diff --git a/drivers/w1/slaves/w1_ds2781.c b/drivers/w1/slaves/w1_ds2781.c index 1aba8e41..1eb98fb1 100644 --- a/drivers/w1/slaves/w1_ds2781.c +++ b/drivers/w1/slaves/w1_ds2781.c @@ -87,22 +87,28 @@ int w1_ds2781_eeprom_cmd(struct device *dev, int addr, int cmd) } EXPORT_SYMBOL(w1_ds2781_eeprom_cmd); -static ssize_t w1_ds2781_read_bin(struct file *filp, - struct kobject *kobj, - struct bin_attribute *bin_attr, - char *buf, loff_t off, size_t count) +static ssize_t w1_slave_read(struct file *filp, struct kobject *kobj, + struct bin_attribute *bin_attr, char *buf, + loff_t off, size_t count) { struct device *dev = container_of(kobj, struct device, kobj); return w1_ds2781_io(dev, buf, off, count, 0); } -static struct bin_attribute w1_ds2781_bin_attr = { - .attr = { - .name = "w1_slave", - .mode = S_IRUGO, - }, - .size = DS2781_DATA_SIZE, - .read = w1_ds2781_read_bin, +static BIN_ATTR_RO(w1_slave, DS2781_DATA_SIZE); + +static struct bin_attribute *w1_ds2781_bin_attrs[] = { + &bin_attr_w1_slave, + NULL, +}; + +static const struct attribute_group w1_ds2781_group = { + .bin_attrs = w1_ds2781_bin_attrs, +}; + +static const struct attribute_group *w1_ds2781_groups[] = { + &w1_ds2781_group, + NULL, }; static DEFINE_IDA(bat_ida); @@ -130,16 +136,10 @@ static int w1_ds2781_add_slave(struct w1_slave *sl) if (ret) goto pdev_add_failed; - ret = sysfs_create_bin_file(&sl->dev.kobj, &w1_ds2781_bin_attr); - if (ret) - goto bin_attr_failed; - dev_set_drvdata(&sl->dev, pdev); return 0; -bin_attr_failed: - platform_device_del(pdev); pdev_add_failed: platform_device_put(pdev); pdev_alloc_failed: @@ -155,12 +155,12 @@ static void w1_ds2781_remove_slave(struct w1_slave *sl) platform_device_unregister(pdev); ida_simple_remove(&bat_ida, id); - sysfs_remove_bin_file(&sl->dev.kobj, &w1_ds2781_bin_attr); } static struct w1_family_ops w1_ds2781_fops = { .add_slave = w1_ds2781_add_slave, .remove_slave = w1_ds2781_remove_slave, + .groups = w1_ds2781_groups, }; static struct w1_family w1_ds2781_family = { -- 1.8.3.rc0.20.gb99dd2e