diff options
Diffstat (limited to 'net/wimax/op-reset.c')
| -rw-r--r-- | net/wimax/op-reset.c | 141 |
1 files changed, 0 insertions, 141 deletions
diff --git a/net/wimax/op-reset.c b/net/wimax/op-reset.c deleted file mode 100644 index 7ceffe39d70e..000000000000 --- a/net/wimax/op-reset.c +++ /dev/null @@ -1,141 +0,0 @@ -/* - * Linux WiMAX - * Implement and export a method for resetting a WiMAX device - * - * - * Copyright (C) 2008 Intel Corporation <linux-wimax@intel.com> - * Inaky Perez-Gonzalez <inaky.perez-gonzalez@intel.com> - * - * This program is free software; you can redistribute it and/or - * modify it under the terms of the GNU General Public License version - * 2 as published by the Free Software Foundation. - * - * This program is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - * GNU General Public License for more details. - * - * You should have received a copy of the GNU General Public License - * along with this program; if not, write to the Free Software - * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA - * 02110-1301, USA. - * - * - * This implements a simple synchronous call to reset a WiMAX device. - * - * Resets aim at being warm, keeping the device handles active; - * however, when that fails, it falls back to a cold reset (that will - * disconnect and reconnect the device). - */ - -#include <net/wimax.h> -#include <net/genetlink.h> -#include <linux/wimax.h> -#include <linux/security.h> -#include <linux/export.h> -#include "wimax-internal.h" - -#define D_SUBMODULE op_reset -#include "debug-levels.h" - - -/** - * wimax_reset - Reset a WiMAX device - * - * @wimax_dev: WiMAX device descriptor - * - * Returns: - * - * %0 if ok and a warm reset was done (the device still exists in - * the system). - * - * -%ENODEV if a cold/bus reset had to be done (device has - * disconnected and reconnected, so current handle is not valid - * any more). - * - * -%EINVAL if the device is not even registered. - * - * Any other negative error code shall be considered as - * non-recoverable. - * - * Description: - * - * Called when wanting to reset the device for any reason. Device is - * taken back to power on status. - * - * This call blocks; on successful return, the device has completed the - * reset process and is ready to operate. - */ -int wimax_reset(struct wimax_dev *wimax_dev) -{ - int result = -EINVAL; - struct device *dev = wimax_dev_to_dev(wimax_dev); - enum wimax_st state; - - might_sleep(); - d_fnstart(3, dev, "(wimax_dev %p)\n", wimax_dev); - mutex_lock(&wimax_dev->mutex); - dev_hold(wimax_dev->net_dev); - state = wimax_dev->state; - mutex_unlock(&wimax_dev->mutex); - - if (state >= WIMAX_ST_DOWN) { - mutex_lock(&wimax_dev->mutex_reset); - result = wimax_dev->op_reset(wimax_dev); - mutex_unlock(&wimax_dev->mutex_reset); - } - dev_put(wimax_dev->net_dev); - - d_fnend(3, dev, "(wimax_dev %p) = %d\n", wimax_dev, result); - return result; -} -EXPORT_SYMBOL(wimax_reset); - - -static const struct nla_policy wimax_gnl_reset_policy[WIMAX_GNL_ATTR_MAX + 1] = { - [WIMAX_GNL_RESET_IFIDX] = { - .type = NLA_U32, - }, -}; - - -/* - * Exporting to user space over generic netlink - * - * Parse the reset command from user space, return error code. - * - * No attributes. - */ -static -int wimax_gnl_doit_reset(struct sk_buff *skb, struct genl_info *info) -{ - int result, ifindex; - struct wimax_dev *wimax_dev; - - d_fnstart(3, NULL, "(skb %p info %p)\n", skb, info); - result = -ENODEV; - if (info->attrs[WIMAX_GNL_RESET_IFIDX] == NULL) { - printk(KERN_ERR "WIMAX_GNL_OP_RFKILL: can't find IFIDX " - "attribute\n"); - goto error_no_wimax_dev; - } - ifindex = nla_get_u32(info->attrs[WIMAX_GNL_RESET_IFIDX]); - wimax_dev = wimax_dev_get_by_genl_info(info, ifindex); - if (wimax_dev == NULL) - goto error_no_wimax_dev; - /* Execute the operation and send the result back to user space */ - result = wimax_reset(wimax_dev); - dev_put(wimax_dev->net_dev); -error_no_wimax_dev: - d_fnend(3, NULL, "(skb %p info %p) = %d\n", skb, info, result); - return result; -} - - -struct genl_ops wimax_gnl_reset = { - .cmd = WIMAX_GNL_OP_RESET, - .flags = GENL_ADMIN_PERM, - .policy = wimax_gnl_reset_policy, - .doit = wimax_gnl_doit_reset, - .dumpit = NULL, -}; |
