// SPDX-License-Identifier: GPL-2.0-only #include "netlink.h"#include "common.h"#include "bitset.h" struct debug_req_info {	struct ethnl_req_info		base;}; struct debug_reply_data {	struct ethnl_reply_data		base;	u32				msg_mask;}; #define DEBUG_REPDATA(__reply_base) \	container_of(__reply_base, struct debug_reply_data, base) const struct nla_policy ethnl_debug_get_policy[] = {	[ETHTOOL_A_DEBUG_HEADER]	=		NLA_POLICY_NESTED(ethnl_header_policy),}; static int debug_prepare_data(const struct ethnl_req_info *req_base,			      struct ethnl_reply_data *reply_base,			      struct genl_info *info){	struct debug_reply_data *data = DEBUG_REPDATA(reply_base);	struct net_device *dev = reply_base->dev;	int ret; 	if (!dev->ethtool_ops->get_msglevel)		return -EOPNOTSUPP; 	ret = ethnl_ops_begin(dev);	if (ret < 0)		return ret;	data->msg_mask = dev->ethtool_ops->get_msglevel(dev);	ethnl_ops_complete(dev); 	return 0;} static int debug_reply_size(const struct ethnl_req_info *req_base,			    const struct ethnl_reply_data *reply_base){	const struct debug_reply_data *data = DEBUG_REPDATA(reply_base);	bool compact = req_base->flags & ETHTOOL_FLAG_COMPACT_BITSETS; 	return ethnl_bitset32_size(&data->msg_mask, NULL, NETIF_MSG_CLASS_COUNT,				   netif_msg_class_names, compact);} static int debug_fill_reply(struct sk_buff *skb,			    const struct ethnl_req_info *req_base,			    const struct ethnl_reply_data *reply_base){	const struct debug_reply_data *data = DEBUG_REPDATA(reply_base);	bool compact = req_base->flags & ETHTOOL_FLAG_COMPACT_BITSETS; 	return ethnl_put_bitset32(skb, ETHTOOL_A_DEBUG_MSGMASK, &data->msg_mask,				  NULL, NETIF_MSG_CLASS_COUNT,				  netif_msg_class_names, compact);} const struct ethnl_request_ops ethnl_debug_request_ops = {	.request_cmd		= ETHTOOL_MSG_DEBUG_GET,	.reply_cmd		= ETHTOOL_MSG_DEBUG_GET_REPLY,	.hdr_attr		= ETHTOOL_A_DEBUG_HEADER,	.req_info_size		= sizeof(struct debug_req_info),	.reply_data_size	= sizeof(struct debug_reply_data), 	.prepare_data		= debug_prepare_data,	.reply_size		= debug_reply_size,	.fill_reply		= debug_fill_reply,}; /* DEBUG_SET */ const struct nla_policy ethnl_debug_set_policy[] = {	[ETHTOOL_A_DEBUG_HEADER]	=		NLA_POLICY_NESTED(ethnl_header_policy),	[ETHTOOL_A_DEBUG_MSGMASK]	= { .type = NLA_NESTED },}; int ethnl_set_debug(struct sk_buff *skb, struct genl_info *info){	struct ethnl_req_info req_info = {};	struct nlattr **tb = info->attrs;	struct net_device *dev;	bool mod = false;	u32 msg_mask;	int ret; 	ret = ethnl_parse_header_dev_get(&req_info,					 tb[ETHTOOL_A_DEBUG_HEADER],					 genl_info_net(info), info->extack,					 true);	if (ret < 0)		return ret;	dev = req_info.dev;	ret = -EOPNOTSUPP;	if (!dev->ethtool_ops->get_msglevel || !dev->ethtool_ops->set_msglevel)		goto out_dev; 	rtnl_lock();	ret = ethnl_ops_begin(dev);	if (ret < 0)		goto out_rtnl; 	msg_mask = dev->ethtool_ops->get_msglevel(dev);	ret = ethnl_update_bitset32(&msg_mask, NETIF_MSG_CLASS_COUNT,				    tb[ETHTOOL_A_DEBUG_MSGMASK],				    netif_msg_class_names, info->extack, &mod);	if (ret < 0 || !mod)		goto out_ops; 	dev->ethtool_ops->set_msglevel(dev, msg_mask);	ethtool_notify(dev, ETHTOOL_MSG_DEBUG_NTF, NULL); out_ops:	ethnl_ops_complete(dev);out_rtnl:	rtnl_unlock();out_dev:	ethnl_parse_header_dev_put(&req_info);	return ret;}