if (!hv_dev->channel)
		return -ENODEV;
	return sprintf(buf, "%d\n", hv_dev->channel->offermsg.child_relid);
}
static DEVICE_ATTR_RO(id);

static ssize_t state_show(struct device *dev, struct device_attribute *dev_attr,
			  char *buf)

            

Reported by FlawFinder.

              
	if (!hv_dev->channel)
		return -ENODEV;
	return sprintf(buf, "%d\n", hv_dev->channel->state);
}
static DEVICE_ATTR_RO(state);

static ssize_t monitor_id_show(struct device *dev,
			       struct device_attribute *dev_attr, char *buf)

            

Reported by FlawFinder.

              
	if (!hv_dev->channel)
		return -ENODEV;
	return sprintf(buf, "%d\n", hv_dev->channel->offermsg.monitorid);
}
static DEVICE_ATTR_RO(monitor_id);

static ssize_t class_id_show(struct device *dev,
			       struct device_attribute *dev_attr, char *buf)

            

Reported by FlawFinder.

              
	if (!hv_dev->channel)
		return -ENODEV;
	return sprintf(buf, "{%pUl}\n",
		       &hv_dev->channel->offermsg.offer.if_type);
}
static DEVICE_ATTR_RO(class_id);

static ssize_t device_id_show(struct device *dev,

            

Reported by FlawFinder.

              
	if (!hv_dev->channel)
		return -ENODEV;
	return sprintf(buf, "{%pUl}\n",
		       &hv_dev->channel->offermsg.offer.if_instance);
}
static DEVICE_ATTR_RO(device_id);

static ssize_t modalias_show(struct device *dev,

            

Reported by FlawFinder.

              {
	struct hv_device *hv_dev = device_to_hv_device(dev);

	return sprintf(buf, "vmbus:%*phN\n", UUID_SIZE, &hv_dev->dev_type);
}
static DEVICE_ATTR_RO(modalias);

#ifdef CONFIG_NUMA
static ssize_t numa_node_show(struct device *dev,

            

Reported by FlawFinder.

              	if (!hv_dev->channel)
		return -ENODEV;

	return sprintf(buf, "%d\n", cpu_to_node(hv_dev->channel->target_cpu));
}
static DEVICE_ATTR_RO(numa_node);
#endif

static ssize_t server_monitor_pending_show(struct device *dev,

            

Reported by FlawFinder.

              
	if (!hv_dev->channel)
		return -ENODEV;
	return sprintf(buf, "%d\n",
		       channel_pending(hv_dev->channel,
				       vmbus_connection.monitor_pages[0]));
}
static DEVICE_ATTR_RO(server_monitor_pending);


            

Reported by FlawFinder.

              
	if (!hv_dev->channel)
		return -ENODEV;
	return sprintf(buf, "%d\n",
		       channel_pending(hv_dev->channel,
				       vmbus_connection.monitor_pages[1]));
}
static DEVICE_ATTR_RO(client_monitor_pending);


            

Reported by FlawFinder.

              
	if (!hv_dev->channel)
		return -ENODEV;
	return sprintf(buf, "%d\n",
		       channel_latency(hv_dev->channel,
				       vmbus_connection.monitor_pages[0]));
}
static DEVICE_ATTR_RO(server_monitor_latency);


            

Reported by FlawFinder.

              # This work is licensed under the terms of the GNU GPL version 2.
#

import gdb

from linux import tasks, utils


task_type = utils.CachedType("struct task_struct")

            

Reported by Pylint.

              cpu_mask = {}


def cpu_mask_invalidate(event):
    global cpu_mask
    cpu_mask = {}
    gdb.events.stop.disconnect(cpu_mask_invalidate)
    if hasattr(gdb.events, 'new_objfile'):
        gdb.events.new_objfile.disconnect(cpu_mask_invalidate)

            

Reported by Pylint.

              

def cpu_mask_invalidate(event):
    global cpu_mask
    cpu_mask = {}
    gdb.events.stop.disconnect(cpu_mask_invalidate)
    if hasattr(gdb.events, 'new_objfile'):
        gdb.events.new_objfile.disconnect(cpu_mask_invalidate)


            

Reported by Pylint.

              

def cpu_list(mask_name):
    global cpu_mask
    mask = None
    if mask_name in cpu_mask:
        mask = cpu_mask[mask_name]
    if mask is None:
        mask = gdb.parse_and_eval(mask_name + ".bits")

            

Reported by Pylint.

                  def __init__(self):
        super(LxCpus, self).__init__("lx-cpus", gdb.COMMAND_DATA)

    def invoke(self, arg, from_tty):
        gdb.write("Possible CPUs : {}\n".format(list(each_possible_cpu())))
        gdb.write("Present CPUs  : {}\n".format(list(each_present_cpu())))
        gdb.write("Online CPUs   : {}\n".format(list(each_online_cpu())))
        gdb.write("Active CPUs   : {}\n".format(list(each_active_cpu())))


            

Reported by Pylint.

                  def __init__(self):
        super(LxCpus, self).__init__("lx-cpus", gdb.COMMAND_DATA)

    def invoke(self, arg, from_tty):
        gdb.write("Possible CPUs : {}\n".format(list(each_possible_cpu())))
        gdb.write("Present CPUs  : {}\n".format(list(each_present_cpu())))
        gdb.write("Online CPUs   : {}\n".format(list(each_online_cpu())))
        gdb.write("Active CPUs   : {}\n".format(list(each_active_cpu())))


            

Reported by Pylint.

              #
# gdb helper commands and functions for Linux kernel debugging
#
#  per-cpu tools
#
# Copyright (c) Siemens AG, 2011-2013
#
# Authors:
#  Jan Kiszka <jan.kiszka@siemens.com>

            

Reported by Pylint.

              MAX_CPUS = 4096


def get_current_cpu():
    if utils.get_gdbserver_type() == utils.GDBSERVER_QEMU:
        return gdb.selected_thread().num - 1
    elif utils.get_gdbserver_type() == utils.GDBSERVER_KGDB:
        tid = gdb.selected_thread().ptid[2]
        if tid > (0x100000000 - MAX_CPUS - 2):

            

Reported by Pylint.

              

def get_current_cpu():
    if utils.get_gdbserver_type() == utils.GDBSERVER_QEMU:
        return gdb.selected_thread().num - 1
    elif utils.get_gdbserver_type() == utils.GDBSERVER_KGDB:
        tid = gdb.selected_thread().ptid[2]
        if tid > (0x100000000 - MAX_CPUS - 2):
            return 0x100000000 - tid - 2

            

Reported by Pylint.

                      return gdb.selected_thread().num - 1
    elif utils.get_gdbserver_type() == utils.GDBSERVER_KGDB:
        tid = gdb.selected_thread().ptid[2]
        if tid > (0x100000000 - MAX_CPUS - 2):
            return 0x100000000 - tid - 2
        else:
            return tasks.get_thread_info(tasks.get_task_by_pid(tid))['cpu']
    else:
        raise gdb.GdbError("Sorry, obtaining the current CPU is not yet "

            

Reported by Pylint.

              	rp.supported_settings = cpu_to_le32(get_supported_settings(hdev));
	rp.current_settings = cpu_to_le32(get_current_settings(hdev));

	memcpy(rp.dev_class, hdev->dev_class, 3);

	memcpy(rp.name, hdev->dev_name, sizeof(hdev->dev_name));
	memcpy(rp.short_name, hdev->short_name, sizeof(hdev->short_name));

	hci_dev_unlock(hdev);

            

Reported by FlawFinder.

              
	memcpy(rp.dev_class, hdev->dev_class, 3);

	memcpy(rp.name, hdev->dev_name, sizeof(hdev->dev_name));
	memcpy(rp.short_name, hdev->short_name, sizeof(hdev->short_name));

	hci_dev_unlock(hdev);

	return mgmt_cmd_complete(sk, hdev->id, MGMT_OP_READ_INFO, 0, &rp,

            

Reported by FlawFinder.

              	memcpy(rp.dev_class, hdev->dev_class, 3);

	memcpy(rp.name, hdev->dev_name, sizeof(hdev->dev_name));
	memcpy(rp.short_name, hdev->short_name, sizeof(hdev->short_name));

	hci_dev_unlock(hdev);

	return mgmt_cmd_complete(sk, hdev->id, MGMT_OP_READ_INFO, 0, &rp,
				 sizeof(rp));

            

Reported by FlawFinder.

              static int read_ext_controller_info(struct sock *sk, struct hci_dev *hdev,
				    void *data, u16 data_len)
{
	char buf[512];
	struct mgmt_rp_read_ext_info *rp = (void *)buf;
	u16 eir_len;

	bt_dev_dbg(hdev, "sock %p", sk);


            

Reported by FlawFinder.

              
static int ext_info_changed(struct hci_dev *hdev, struct sock *skip)
{
	char buf[512];
	struct mgmt_ev_ext_info_changed *ev = (void *)buf;
	u16 eir_len;

	memset(buf, 0, sizeof(buf));


            

Reported by FlawFinder.

              		goto failed;
	}

	memcpy(uuid->uuid, cp->uuid, 16);
	uuid->svc_hint = cp->svc_hint;
	uuid->size = get_uuid_size(cp->uuid);

	list_add_tail(&uuid->list, &hdev->uuids);


            

Reported by FlawFinder.

              static int read_controller_cap(struct sock *sk, struct hci_dev *hdev,
			       void *data, u16 data_len)
{
	char buf[20];
	struct mgmt_rp_read_controller_cap *rp = (void *)buf;
	u16 cap_len = 0;
	u8 flags = 0;
	u8 tx_power_range[2];


            

Reported by FlawFinder.

              	 * it from the controller
	 */
	if (hdev->commands[38] & 0x80) {
		memcpy(&tx_power_range[0], &hdev->min_le_tx_power, 1);
		memcpy(&tx_power_range[1], &hdev->max_le_tx_power, 1);
		cap_len = eir_append_data(rp->cap, cap_len, MGMT_CAP_LE_TX_PWR,
					  tx_power_range, 2);
	}


            

Reported by FlawFinder.

              	 */
	if (hdev->commands[38] & 0x80) {
		memcpy(&tx_power_range[0], &hdev->min_le_tx_power, 1);
		memcpy(&tx_power_range[1], &hdev->max_le_tx_power, 1);
		cap_len = eir_append_data(rp->cap, cap_len, MGMT_CAP_LE_TX_PWR,
					  tx_power_range, 2);
	}

	rp->cap_len = cpu_to_le16(cap_len);

            

Reported by FlawFinder.

              static int read_exp_features_info(struct sock *sk, struct hci_dev *hdev,
				  void *data, u16 data_len)
{
	char buf[62];	/* Enough space for 3 features */
	struct mgmt_rp_read_exp_features_info *rp = (void *)buf;
	u16 idx = 0;
	u32 flags;

	bt_dev_dbg(hdev, "sock %p", sk);

            

Reported by FlawFinder.

              	mwifiex_get_ver_ext(priv, 0);

	p += sprintf(p, "driver_name = " "\"mwifiex\"\n");
	p += sprintf(p, "driver_version = %s", fmt);
	p += sprintf(p, "\nverext = %s", priv->version_str);
	p += sprintf(p, "\ninterface_name=\"%s\"\n", netdev->name);

	if (info.bss_mode >= ARRAY_SIZE(bss_modes))
		p += sprintf(p, "bss_mode=\"%d\"\n", info.bss_mode);

            

Reported by FlawFinder.

              
	p += sprintf(p, "driver_name = " "\"mwifiex\"\n");
	p += sprintf(p, "driver_version = %s", fmt);
	p += sprintf(p, "\nverext = %s", priv->version_str);
	p += sprintf(p, "\ninterface_name=\"%s\"\n", netdev->name);

	if (info.bss_mode >= ARRAY_SIZE(bss_modes))
		p += sprintf(p, "bss_mode=\"%d\"\n", info.bss_mode);
	else

            

Reported by FlawFinder.

              	p += sprintf(p, "driver_name = " "\"mwifiex\"\n");
	p += sprintf(p, "driver_version = %s", fmt);
	p += sprintf(p, "\nverext = %s", priv->version_str);
	p += sprintf(p, "\ninterface_name=\"%s\"\n", netdev->name);

	if (info.bss_mode >= ARRAY_SIZE(bss_modes))
		p += sprintf(p, "bss_mode=\"%d\"\n", info.bss_mode);
	else
		p += sprintf(p, "bss_mode=\"%s\"\n", bss_modes[info.bss_mode]);

            

Reported by FlawFinder.

              	if (info.bss_mode >= ARRAY_SIZE(bss_modes))
		p += sprintf(p, "bss_mode=\"%d\"\n", info.bss_mode);
	else
		p += sprintf(p, "bss_mode=\"%s\"\n", bss_modes[info.bss_mode]);

	p += sprintf(p, "media_state=\"%s\"\n",
		     (!priv->media_connected ? "Disconnected" : "Connected"));
	p += sprintf(p, "mac_address=\"%pM\"\n", netdev->dev_addr);


            

Reported by FlawFinder.

              	else
		p += sprintf(p, "bss_mode=\"%s\"\n", bss_modes[info.bss_mode]);

	p += sprintf(p, "media_state=\"%s\"\n",
		     (!priv->media_connected ? "Disconnected" : "Connected"));
	p += sprintf(p, "mac_address=\"%pM\"\n", netdev->dev_addr);

	if (GET_BSS_ROLE(priv) == MWIFIEX_BSS_ROLE_STA) {
		p += sprintf(p, "multicast_count=\"%d\"\n",

            

Reported by FlawFinder.

              			     info.ssid.ssid);
		p += sprintf(p, "bssid=\"%pM\"\n", info.bssid);
		p += sprintf(p, "channel=\"%d\"\n", (int) info.bss_chan);
		p += sprintf(p, "country_code = \"%s\"\n", info.country_code);
		p += sprintf(p, "region_code=\"0x%x\"\n",
			     priv->adapter->region_code);

		netdev_for_each_mc_addr(ha, netdev)
			p += sprintf(p, "multicast_address[%d]=\"%pM\"\n",

            

Reported by FlawFinder.

              	p += sprintf(p, "num_rx_pkts_dropped = %lu\n", priv->stats.rx_dropped);
	p += sprintf(p, "num_tx_pkts_err = %lu\n", priv->stats.tx_errors);
	p += sprintf(p, "num_rx_pkts_err = %lu\n", priv->stats.rx_errors);
	p += sprintf(p, "carrier %s\n", ((netif_carrier_ok(priv->netdev))
					 ? "on" : "off"));
	p += sprintf(p, "tx queue");
	for (i = 0; i < netdev->num_tx_queues; i++) {
		txq = netdev_get_tx_queue(netdev, i);
		p += sprintf(p, " %d:%s", i, netif_tx_queue_stopped(txq) ?

            

Reported by FlawFinder.

              	p += sprintf(p, "tx queue");
	for (i = 0; i < netdev->num_tx_queues; i++) {
		txq = netdev_get_tx_queue(netdev, i);
		p += sprintf(p, " %d:%s", i, netif_tx_queue_stopped(txq) ?
			     "stopped" : "started");
	}
	p += sprintf(p, "\n");

	ret = simple_read_from_buffer(ubuf, count, ppos, (char *) page,

            

Reported by FlawFinder.

              	struct netdev_hw_addr *ha;
	struct netdev_queue *txq;
	unsigned long page = get_zeroed_page(GFP_KERNEL);
	char *p = (char *) page, fmt[64];
	struct mwifiex_bss_info info;
	ssize_t ret;
	int i = 0;

	if (!p)

            

Reported by FlawFinder.

              
	mwifiex_get_ver_ext(priv, 0);

	p += sprintf(p, "driver_name = " "\"mwifiex\"\n");
	p += sprintf(p, "driver_version = %s", fmt);
	p += sprintf(p, "\nverext = %s", priv->version_str);
	p += sprintf(p, "\ninterface_name=\"%s\"\n", netdev->name);

	if (info.bss_mode >= ARRAY_SIZE(bss_modes))

            

Reported by FlawFinder.

              	iwe.cmd = SIOCGIWNAME;
	for (i = 0; i < ARRAY_SIZE(rtllib_modes); i++) {
		if (network->mode&(1<<i)) {
			sprintf(pname, rtllib_modes[i].mode_string,
				rtllib_modes[i].mode_size);
			pname += rtllib_modes[i].mode_size;
		}
	}
	*pname = '\0';

            

Reported by FlawFinder.

              		.flags = 0
	};
	int i, key, key_provided, len;
	struct lib80211_crypt_data **crypt;

	key = erq->flags & IW_ENCODE_INDEX;
	if (key) {
		if (key > NUM_WEP_KEYS)
			return -EINVAL;

            

Reported by FlawFinder.

              
	netdev_dbg(ieee->dev, "Key: %d [%s]\n", key, key_provided ?
			   "provided" : "default");
	crypt = &ieee->crypt_info.crypt[key];
	if (erq->flags & IW_ENCODE_DISABLED) {
		if (key_provided && *crypt) {
			netdev_dbg(ieee->dev,
				   "Disabling encryption on key %d.\n", key);
			lib80211_crypt_delayed_deinit(&ieee->crypt_info, crypt);

            

Reported by FlawFinder.

              			   "provided" : "default");
	crypt = &ieee->crypt_info.crypt[key];
	if (erq->flags & IW_ENCODE_DISABLED) {
		if (key_provided && *crypt) {
			netdev_dbg(ieee->dev,
				   "Disabling encryption on key %d.\n", key);
			lib80211_crypt_delayed_deinit(&ieee->crypt_info, crypt);
		} else
			netdev_dbg(ieee->dev, "Disabling encryption.\n");

            

Reported by FlawFinder.

              		if (key_provided && *crypt) {
			netdev_dbg(ieee->dev,
				   "Disabling encryption on key %d.\n", key);
			lib80211_crypt_delayed_deinit(&ieee->crypt_info, crypt);
		} else
			netdev_dbg(ieee->dev, "Disabling encryption.\n");

		/* Check all the keys to see if any are still configured,
		 * and if no key index was provided, de-init them all

            

Reported by FlawFinder.

              		 * and if no key index was provided, de-init them all
		 */
		for (i = 0; i < NUM_WEP_KEYS; i++) {
			if (ieee->crypt_info.crypt[i]) {
				if (key_provided)
					break;
				lib80211_crypt_delayed_deinit(&ieee->crypt_info,
							      &ieee->crypt_info.crypt[i]);
			}

            

Reported by FlawFinder.

              				if (key_provided)
					break;
				lib80211_crypt_delayed_deinit(&ieee->crypt_info,
							      &ieee->crypt_info.crypt[i]);
			}
		}

		if (i == NUM_WEP_KEYS) {
			sec.enabled = 0;

            

Reported by FlawFinder.

              	sec.enabled = 1;
	sec.flags |= SEC_ENABLED;

	if (*crypt && (*crypt)->ops &&
	    strcmp((*crypt)->ops->name, "R-WEP") != 0) {
		/* changing to use WEP; deinit previously used algorithm
		 * on this key
		 */
		lib80211_crypt_delayed_deinit(&ieee->crypt_info, crypt);

            

Reported by FlawFinder.

              	sec.enabled = 1;
	sec.flags |= SEC_ENABLED;

	if (*crypt && (*crypt)->ops &&
	    strcmp((*crypt)->ops->name, "R-WEP") != 0) {
		/* changing to use WEP; deinit previously used algorithm
		 * on this key
		 */
		lib80211_crypt_delayed_deinit(&ieee->crypt_info, crypt);

            

Reported by FlawFinder.

              	sec.flags |= SEC_ENABLED;

	if (*crypt && (*crypt)->ops &&
	    strcmp((*crypt)->ops->name, "R-WEP") != 0) {
		/* changing to use WEP; deinit previously used algorithm
		 * on this key
		 */
		lib80211_crypt_delayed_deinit(&ieee->crypt_info, crypt);
	}

            

Reported by FlawFinder.

              
TEST_F_FORK(layout1, file_access_rights)
{
	__u64 access;
	int err;
	struct landlock_path_beneath_attr path_beneath = {};
	struct landlock_ruleset_attr ruleset_attr = {
		.handled_access_fs = ACCESS_ALL,
	};

            

Reported by FlawFinder.

              	/* Tests access rights for files. */
	path_beneath.parent_fd = open(file1_s1d2, O_PATH | O_CLOEXEC);
	ASSERT_LE(0, path_beneath.parent_fd);
	for (access = 1; access <= ACCESS_LAST; access <<= 1) {
		path_beneath.allowed_access = access;
		err = landlock_add_rule(ruleset_fd, LANDLOCK_RULE_PATH_BENEATH,
				&path_beneath, 0);
		if ((access | ACCESS_FILE) == ACCESS_FILE) {
			ASSERT_EQ(0, err);

            

Reported by FlawFinder.

              	/* Tests access rights for files. */
	path_beneath.parent_fd = open(file1_s1d2, O_PATH | O_CLOEXEC);
	ASSERT_LE(0, path_beneath.parent_fd);
	for (access = 1; access <= ACCESS_LAST; access <<= 1) {
		path_beneath.allowed_access = access;
		err = landlock_add_rule(ruleset_fd, LANDLOCK_RULE_PATH_BENEATH,
				&path_beneath, 0);
		if ((access | ACCESS_FILE) == ACCESS_FILE) {
			ASSERT_EQ(0, err);

            

Reported by FlawFinder.

              	path_beneath.parent_fd = open(file1_s1d2, O_PATH | O_CLOEXEC);
	ASSERT_LE(0, path_beneath.parent_fd);
	for (access = 1; access <= ACCESS_LAST; access <<= 1) {
		path_beneath.allowed_access = access;
		err = landlock_add_rule(ruleset_fd, LANDLOCK_RULE_PATH_BENEATH,
				&path_beneath, 0);
		if ((access | ACCESS_FILE) == ACCESS_FILE) {
			ASSERT_EQ(0, err);
		} else {

            

Reported by FlawFinder.

              		path_beneath.allowed_access = access;
		err = landlock_add_rule(ruleset_fd, LANDLOCK_RULE_PATH_BENEATH,
				&path_beneath, 0);
		if ((access | ACCESS_FILE) == ACCESS_FILE) {
			ASSERT_EQ(0, err);
		} else {
			ASSERT_EQ(-1, err);
			ASSERT_EQ(EINVAL, errno);
		}

            

Reported by FlawFinder.

              
struct rule {
	const char *path;
	__u64 access;
};

#define ACCESS_RO ( \
	LANDLOCK_ACCESS_FS_READ_FILE | \
	LANDLOCK_ACCESS_FS_READ_DIR)

            

Reported by FlawFinder.

              	}

	for (i = 0; rules[i].path; i++) {
		add_path_beneath(_metadata, ruleset_fd, rules[i].access,
				rules[i].path);
	}
	return ruleset_fd;
}


            

Reported by FlawFinder.

              		{}
	};
	struct landlock_path_beneath_attr path_beneath;
	const int ruleset_fd = create_ruleset(_metadata, rules[0].access |
			LANDLOCK_ACCESS_FS_READ_DIR, rules);

	ASSERT_LE(0, ruleset_fd);
	ASSERT_EQ(0, test_open("/proc/self/ns/mnt", O_RDONLY));


            

Reported by FlawFinder.

              		},
		{}
	};
	const int ruleset_fd = create_ruleset(_metadata, rules[0].access,
			rules);

	ASSERT_LE(0, ruleset_fd);
	copy_binary(_metadata, file1_s1d1);
	copy_binary(_metadata, file1_s1d2);

            

Reported by FlawFinder.

              		},
		{}
	};
	const int ruleset_fd = create_ruleset(_metadata, rules[0].access,
			rules);

	ASSERT_LE(0, ruleset_fd);

	ASSERT_EQ(0, unlink(file1_s1d1));

            

Reported by FlawFinder.

              #
# Copyright (c) NXP 2019

import gdb

from linux.utils import CachedType
from linux.utils import container_of
from linux.lists import list_for_each_entry


            

Reported by Pylint.

                  def __init__(self):
        super(LxDeviceListBus, self).__init__('lx-device-list-bus', gdb.COMMAND_DATA)

    def invoke(self, arg, from_tty):
        if not arg:
            for bus in for_each_bus():
                gdb.write('bus {}:\t{}\n'.format(bus['name'].string(), bus))
                for dev in bus_for_each_device(bus):
                    _show_device(dev, level=1)

            

Reported by Pylint.

                  def __init__(self):
        super(LxDeviceListClass, self).__init__('lx-device-list-class', gdb.COMMAND_DATA)

    def invoke(self, arg, from_tty):
        if not arg:
            for cls in for_each_class():
                gdb.write("class {}:\t{}\n".format(cls['name'].string(), cls))
                for dev in class_for_each_device(cls):
                    _show_device(dev, level=1)

            

Reported by Pylint.

                  def __init__(self):
        super(LxDeviceListTree, self).__init__('lx-device-list-tree', gdb.COMMAND_DATA)

    def invoke(self, arg, from_tty):
        if not arg:
            raise gdb.GdbError('Please provide pointer to struct device')
        dev = gdb.parse_and_eval(arg)
        if dev.type != device_type.get_type().pointer():
            raise gdb.GdbError('Please provide pointer to struct device')

            

Reported by Pylint.

              # SPDX-License-Identifier: GPL-2.0
#
# Copyright (c) NXP 2019

import gdb

from linux.utils import CachedType
from linux.utils import container_of
from linux.lists import list_for_each_entry

            

Reported by Pylint.

              class_type = CachedType('struct class')


def dev_name(dev):
    dev_init_name = dev['init_name']
    if dev_init_name:
        return dev_init_name.string()
    return dev['kobj']['name'].string()


            

Reported by Pylint.

                  return dev['kobj']['name'].string()


def kset_for_each_object(kset):
    return list_for_each_entry(kset['list'],
            kobject_type.get_type().pointer(), "entry")


def for_each_bus():

            

Reported by Pylint.

                          kobject_type.get_type().pointer(), "entry")


def for_each_bus():
    for kobj in kset_for_each_object(gdb.parse_and_eval('bus_kset')):
        subsys = container_of(kobj, kset_type.get_type().pointer(), 'kobj')
        subsys_priv = container_of(subsys, subsys_private_type.get_type().pointer(), 'subsys')
        yield subsys_priv['bus']


            

Reported by Pylint.

                      yield subsys_priv['bus']


def for_each_class():
    for kobj in kset_for_each_object(gdb.parse_and_eval('class_kset')):
        subsys = container_of(kobj, kset_type.get_type().pointer(), 'kobj')
        subsys_priv = container_of(subsys, subsys_private_type.get_type().pointer(), 'subsys')
        yield subsys_priv['class']


            

Reported by Pylint.

                      yield subsys_priv['class']


def get_bus_by_name(name):
    for item in for_each_bus():
        if item['name'].string() == name:
            return item
    raise gdb.GdbError("Can't find bus type {!r}".format(name))


            

Reported by Pylint.

              	/* set new ssid */
	tmp_new = cfg80211_find_ie(WLAN_EID_SSID, sub_copy, subie_len);
	if (tmp_new) {
		memcpy(pos, tmp_new, tmp_new[1] + 2);
		pos += (tmp_new[1] + 2);
	}

	/* get non inheritance list if exists */
	non_inherit_elem =

            

Reported by FlawFinder.

              			/* ie in old ie but not in subelement */
			if (cfg80211_is_element_inherited(old_elem,
							  non_inherit_elem)) {
				memcpy(pos, tmp_old, tmp_old[1] + 2);
				pos += tmp_old[1] + 2;
			}
		} else {
			/* ie in transmitting ie also in subelement,
			 * copy from subelement and flag the ie in subelement

            

Reported by FlawFinder.

              					/* same vendor ie, copy from
					 * subelement
					 */
					memcpy(pos, tmp, tmp[1] + 2);
					pos += tmp[1] + 2;
					tmp[0] = WLAN_EID_SSID;
				} else {
					memcpy(pos, tmp_old, tmp_old[1] + 2);
					pos += tmp_old[1] + 2;

            

Reported by FlawFinder.

              					pos += tmp[1] + 2;
					tmp[0] = WLAN_EID_SSID;
				} else {
					memcpy(pos, tmp_old, tmp_old[1] + 2);
					pos += tmp_old[1] + 2;
				}
			} else {
				/* copy ie from subelement into new ie */
				memcpy(pos, tmp, tmp[1] + 2);

            

Reported by FlawFinder.

              				}
			} else {
				/* copy ie from subelement into new ie */
				memcpy(pos, tmp, tmp[1] + 2);
				pos += tmp[1] + 2;
				tmp[0] = WLAN_EID_SSID;
			}
		}


            

Reported by FlawFinder.

              	while (tmp_new + tmp_new[1] + 2 - sub_copy <= subie_len) {
		if (!(tmp_new[0] == WLAN_EID_NON_TX_BSSID_CAP ||
		      tmp_new[0] == WLAN_EID_SSID)) {
			memcpy(pos, tmp_new, tmp_new[1] + 2);
			pos += tmp_new[1] + 2;
		}
		if (tmp_new + tmp_new[1] + 2 - sub_copy == subie_len)
			break;
		tmp_new += tmp_new[1] + 2;

            

Reported by FlawFinder.

              	/* skip the TBTT offset */
	pos++;

	memcpy(entry->bssid, pos, ETH_ALEN);
	pos += ETH_ALEN;

	if (length == IEEE80211_TBTT_INFO_OFFSET_BSSID_SSSID_BSS_PARAM) {
		memcpy(&entry->short_ssid, pos,
		       sizeof(entry->short_ssid));

            

Reported by FlawFinder.

              		 * cfg80211_parse_colocated_ap(), before calling this
		 * function.
		 */
		memcpy(&entry->ssid, &ssid_elem->data,
		       ssid_elem->datalen);
		entry->ssid_len = ssid_elem->datalen;
	}
	return 0;
}

            

Reported by FlawFinder.

              			continue;

		cfg80211_scan_req_add_chan(request, chan, true);
		memcpy(scan_6ghz_params->bssid, ap->bssid, ETH_ALEN);
		scan_6ghz_params->short_ssid = ap->short_ssid;
		scan_6ghz_params->short_ssid_valid = ap->short_ssid_valid;
		scan_6ghz_params->unsolicited_probe = ap->unsolicited_probe;

		/*

            

Reported by FlawFinder.

              		 */
		request->ssids = (void *)&request->channels[request->n_channels];
		request->n_ssids = rdev_req->n_ssids;
		memcpy(request->ssids, rdev_req->ssids, sizeof(*request->ssids) *
		       request->n_ssids);

		/*
		 * If this scan follows a previous scan, save the scan start
		 * info from the first part of the scan

            

Reported by FlawFinder.

              static const char mlxsw_sp2_driver_name[] = "mlxsw_spectrum2";
static const char mlxsw_sp3_driver_name[] = "mlxsw_spectrum3";

static const unsigned char mlxsw_sp1_mac_mask[ETH_ALEN] = {
	0xff, 0xff, 0xff, 0xff, 0xfc, 0x00
};
static const unsigned char mlxsw_sp2_mac_mask[ETH_ALEN] = {
	0xff, 0xff, 0xff, 0xff, 0xf0, 0x00
};

            

Reported by FlawFinder.

              static const unsigned char mlxsw_sp1_mac_mask[ETH_ALEN] = {
	0xff, 0xff, 0xff, 0xff, 0xfc, 0x00
};
static const unsigned char mlxsw_sp2_mac_mask[ETH_ALEN] = {
	0xff, 0xff, 0xff, 0xff, 0xf0, 0x00
};

/* tx_hdr_version
 * Tx header version.

            

Reported by FlawFinder.

              			      unsigned int counter_index, u64 *packets,
			      u64 *bytes)
{
	char mgpc_pl[MLXSW_REG_MGPC_LEN];
	int err;

	mlxsw_reg_mgpc_pack(mgpc_pl, counter_index, MLXSW_REG_MGPC_OPCODE_NOP,
			    MLXSW_REG_FLOW_COUNTER_SET_TYPE_PACKETS_BYTES);
	err = mlxsw_reg_query(mlxsw_sp->core, MLXSW_REG(mgpc), mgpc_pl);

            

Reported by FlawFinder.

              static int mlxsw_sp_flow_counter_clear(struct mlxsw_sp *mlxsw_sp,
				       unsigned int counter_index)
{
	char mgpc_pl[MLXSW_REG_MGPC_LEN];

	mlxsw_reg_mgpc_pack(mgpc_pl, counter_index, MLXSW_REG_MGPC_OPCODE_CLEAR,
			    MLXSW_REG_FLOW_COUNTER_SET_TYPE_PACKETS_BYTES);
	return mlxsw_reg_write(mlxsw_sp->core, MLXSW_REG(mgpc), mgpc_pl);
}

            

Reported by FlawFinder.

              
static int mlxsw_sp_base_mac_get(struct mlxsw_sp *mlxsw_sp)
{
	char spad_pl[MLXSW_REG_SPAD_LEN] = {0};
	int err;

	err = mlxsw_reg_query(mlxsw_sp->core, MLXSW_REG(spad), spad_pl);
	if (err)
		return err;

            

Reported by FlawFinder.

              				   bool is_up)
{
	struct mlxsw_sp *mlxsw_sp = mlxsw_sp_port->mlxsw_sp;
	char paos_pl[MLXSW_REG_PAOS_LEN];

	mlxsw_reg_paos_pack(paos_pl, mlxsw_sp_port->local_port,
			    is_up ? MLXSW_PORT_ADMIN_STATUS_UP :
			    MLXSW_PORT_ADMIN_STATUS_DOWN);
	return mlxsw_reg_write(mlxsw_sp->core, MLXSW_REG(paos), paos_pl);

            

Reported by FlawFinder.

              				      unsigned char *addr)
{
	struct mlxsw_sp *mlxsw_sp = mlxsw_sp_port->mlxsw_sp;
	char ppad_pl[MLXSW_REG_PPAD_LEN];

	mlxsw_reg_ppad_pack(ppad_pl, true, mlxsw_sp_port->local_port);
	mlxsw_reg_ppad_mac_memcpy_to(ppad_pl, addr);
	return mlxsw_reg_write(mlxsw_sp->core, MLXSW_REG(ppad), ppad_pl);
}

            

Reported by FlawFinder.

              static int mlxsw_sp_port_max_mtu_get(struct mlxsw_sp_port *mlxsw_sp_port, int *p_max_mtu)
{
	struct mlxsw_sp *mlxsw_sp = mlxsw_sp_port->mlxsw_sp;
	char pmtu_pl[MLXSW_REG_PMTU_LEN];
	int err;

	mlxsw_reg_pmtu_pack(pmtu_pl, mlxsw_sp_port->local_port, 0);
	err = mlxsw_reg_query(mlxsw_sp->core, MLXSW_REG(pmtu), pmtu_pl);
	if (err)

            

Reported by FlawFinder.

              static int mlxsw_sp_port_mtu_set(struct mlxsw_sp_port *mlxsw_sp_port, u16 mtu)
{
	struct mlxsw_sp *mlxsw_sp = mlxsw_sp_port->mlxsw_sp;
	char pmtu_pl[MLXSW_REG_PMTU_LEN];

	mtu += MLXSW_TXHDR_LEN + ETH_HLEN;
	if (mtu > mlxsw_sp_port->max_mtu)
		return -EINVAL;


            

Reported by FlawFinder.

              static int mlxsw_sp_port_swid_set(struct mlxsw_sp_port *mlxsw_sp_port, u8 swid)
{
	struct mlxsw_sp *mlxsw_sp = mlxsw_sp_port->mlxsw_sp;
	char pspa_pl[MLXSW_REG_PSPA_LEN];

	mlxsw_reg_pspa_pack(pspa_pl, swid, mlxsw_sp_port->local_port);
	return mlxsw_reg_write(mlxsw_sp->core, MLXSW_REG(pspa), pspa_pl);
}


            

Reported by FlawFinder.

              }

static __be32
nfsd4_encode_readlink(struct nfsd4_compoundres *resp, __be32 nfserr, struct nfsd4_readlink *readlink)
{
	int maxcount;
	__be32 wire_count;
	int zero = 0;
	struct xdr_stream *xdr = resp->xdr;

            

Reported by FlawFinder.

              
static __be32
nfsd4_decode_access(struct nfsd4_compoundargs *argp,
		    struct nfsd4_access *access)
{
	if (xdr_stream_decode_u32(argp->xdr, &access->ac_req_access) < 0)
		return nfserr_bad_xdr;
	return nfs_ok;
}

            

Reported by FlawFinder.

              }

static __be32
nfsd4_encode_access(struct nfsd4_compoundres *resp, __be32 nfserr, struct nfsd4_access *access)
{
	struct xdr_stream *xdr = resp->xdr;
	__be32 *p;

	p = xdr_reserve_space(xdr, 8);

            

Reported by FlawFinder.

              
	if (!p)
		return NULL;
	memcpy(p, buf, len);
	p[len] = '\0';
	return p;
}

static void *

            

Reported by FlawFinder.

              	tmp = svcxdr_tmpalloc(argp, len);
	if (!tmp)
		return NULL;
	memcpy(tmp, p, len);
	return tmp;
}

/*
 * NFSv4 basic data type decoders

            

Reported by FlawFinder.

              	p = xdr_inline_decode(argp->xdr, sizeof(__be64));
	if (!p)
		return nfserr_bad_xdr;
	memcpy(clientid, p, sizeof(*clientid));
	return nfs_ok;
}

static __be32
nfsd4_decode_state_owner4(struct nfsd4_compoundargs *argp,

            

Reported by FlawFinder.

              	p = xdr_inline_decode(argp->xdr, NFS4_DEVICEID4_SIZE);
	if (!p)
		return nfserr_bad_xdr;
	memcpy(devid, p, sizeof(*devid));
	return nfs_ok;
}

static __be32
nfsd4_decode_layoutupdate4(struct nfsd4_compoundargs *argp,

            

Reported by FlawFinder.

              }

static __be32
nfsd4_decode_createhow4(struct nfsd4_compoundargs *argp, struct nfsd4_open *open)
{
	__be32 status;

	if (xdr_stream_decode_u32(argp->xdr, &open->op_createmode) < 0)
		return nfserr_bad_xdr;

            

Reported by FlawFinder.

              }

static __be32
nfsd4_decode_openflag4(struct nfsd4_compoundargs *argp, struct nfsd4_open *open)
{
	__be32 status;

	if (xdr_stream_decode_u32(argp->xdr, &open->op_create) < 0)
		return nfserr_bad_xdr;

            

Reported by FlawFinder.

              	case NFS4_OPEN_NOCREATE:
		break;
	case NFS4_OPEN_CREATE:
		status = nfsd4_decode_createhow4(argp, open);
		if (status)
			return status;
		break;
	default:
		return nfserr_bad_xdr;

            

Reported by FlawFinder.