From mboxrd@z Thu Jan 1 00:00:00 1970 From: Keiichi KII Subject: [RFC][PATCH -mm take2 5/5] add "add" element in /sys/class/misc/netconsole Date: Tue, 26 Dec 2006 14:35:55 +0900 Message-ID: <4590B4BB.9090808@bx.jp.nec.com> References: <4590AE00.5040102@bx.jp.nec.com> Mime-Version: 1.0 Content-Type: text/plain; charset=ISO-2022-JP Content-Transfer-Encoding: 7bit Cc: linux-kernel@vger.kernel.org, netdev@vger.kernel.org Return-path: Received: from TYO202.gate.nec.co.jp ([202.32.8.206]:42564 "EHLO tyo202.gate.nec.co.jp" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S932349AbWLZFgI (ORCPT ); Tue, 26 Dec 2006 00:36:08 -0500 To: mpm@selenic.com In-Reply-To: <4590AE00.5040102@bx.jp.nec.com> Sender: netdev-owner@vger.kernel.org List-Id: netdev.vger.kernel.org From: Keiichi KII This patch contains switch function of netpoll. If "enabled" attribute of certain port is '1', this port is used and the configurations of this port are uable to change. If "enabled" attribute of certain port is '0', this port isn't used and the configurations of this port are able to change. -+- /sys/class/misc/ |-+- netconsole/ |-+- port1/ | |--- id [r--r--r--] id | |--- enabled [rw-r--r--] 0: disable 1: enable, writable | ... |--- port2/ ... Signed-off-by: Keiichi KII Signed-off-by: Takayoshi Kochi --- --- linux-mm/drivers/net/netconsole.c 2006-12-26 14:19:01.481857000 +0900 +++ enhanced-netconsole/drivers/net/netconsole.c.add 2006-12-25 16:45:05.121887750 +0900 @@ -335,6 +335,30 @@ static struct miscdevice netconsole_misc .name = "netconsole", }; +static ssize_t store_miscdev_add(struct class_device *cdev, + const char *buf, size_t count) +{ + char *target_param; + + target_param = kmalloc(count+1, GFP_KERNEL); + if (!target_param) { + printk(KERN_ERR "netconsole: kmalloc() failed!\n"); + return -ENOMEM; + } + + strcpy(target_param, buf); + if (target_param[count - 1] == '\n') + target_param[count - 1] = '\0'; + + printk(KERN_INFO "netconsole: config = [%s]\n", target_param); + add_target(target_param); + kfree(target_param); + + return count; +} + +static CLASS_DEVICE_ATTR(add, S_IWUSR, NULL, store_miscdev_add); + static struct netpoll np = { .name = "netconsole", .dev_name = "eth0", @@ -464,6 +488,9 @@ static int __init init_netconsole(void) register_console(&netconsole); + class_device_create_file(netconsole_miscdev.class, + &class_device_attr_add); + if(!strlen(config)) { printk(KERN_ERR "netconsole: not configured\n"); return 0; -- Keiichi KII NEC Corporation OSS Promotion Center E-mail: k-keiichi@bx.jp.nec.com