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- /* SPDX-License-Identifier: GPL-2.0 */
- #ifndef _LINUX_NET_DEBUG_H
- #define _LINUX_NET_DEBUG_H
- #include <linux/bug.h>
- #include <linux/kern_levels.h>
- struct net_device;
- __printf(3, 4) __cold
- void netdev_printk(const char *level, const struct net_device *dev,
- const char *format, ...);
- __printf(2, 3) __cold
- void netdev_emerg(const struct net_device *dev, const char *format, ...);
- __printf(2, 3) __cold
- void netdev_alert(const struct net_device *dev, const char *format, ...);
- __printf(2, 3) __cold
- void netdev_crit(const struct net_device *dev, const char *format, ...);
- __printf(2, 3) __cold
- void netdev_err(const struct net_device *dev, const char *format, ...);
- __printf(2, 3) __cold
- void netdev_warn(const struct net_device *dev, const char *format, ...);
- __printf(2, 3) __cold
- void netdev_notice(const struct net_device *dev, const char *format, ...);
- __printf(2, 3) __cold
- void netdev_info(const struct net_device *dev, const char *format, ...);
- #define netdev_level_once(level, dev, fmt, ...) \
- do { \
- static bool __section(".data.once") __print_once; \
- \
- if (!__print_once) { \
- __print_once = true; \
- netdev_printk(level, dev, fmt, ##__VA_ARGS__); \
- } \
- } while (0)
- #define netdev_emerg_once(dev, fmt, ...) \
- netdev_level_once(KERN_EMERG, dev, fmt, ##__VA_ARGS__)
- #define netdev_alert_once(dev, fmt, ...) \
- netdev_level_once(KERN_ALERT, dev, fmt, ##__VA_ARGS__)
- #define netdev_crit_once(dev, fmt, ...) \
- netdev_level_once(KERN_CRIT, dev, fmt, ##__VA_ARGS__)
- #define netdev_err_once(dev, fmt, ...) \
- netdev_level_once(KERN_ERR, dev, fmt, ##__VA_ARGS__)
- #define netdev_warn_once(dev, fmt, ...) \
- netdev_level_once(KERN_WARNING, dev, fmt, ##__VA_ARGS__)
- #define netdev_notice_once(dev, fmt, ...) \
- netdev_level_once(KERN_NOTICE, dev, fmt, ##__VA_ARGS__)
- #define netdev_info_once(dev, fmt, ...) \
- netdev_level_once(KERN_INFO, dev, fmt, ##__VA_ARGS__)
- #if defined(CONFIG_DYNAMIC_DEBUG) || \
- (defined(CONFIG_DYNAMIC_DEBUG_CORE) && defined(DYNAMIC_DEBUG_MODULE))
- #define netdev_dbg(__dev, format, args...) \
- do { \
- dynamic_netdev_dbg(__dev, format, ##args); \
- } while (0)
- #elif defined(DEBUG)
- #define netdev_dbg(__dev, format, args...) \
- netdev_printk(KERN_DEBUG, __dev, format, ##args)
- #else
- #define netdev_dbg(__dev, format, args...) \
- ({ \
- if (0) \
- netdev_printk(KERN_DEBUG, __dev, format, ##args); \
- })
- #endif
- #if defined(VERBOSE_DEBUG)
- #define netdev_vdbg netdev_dbg
- #else
- #define netdev_vdbg(dev, format, args...) \
- ({ \
- if (0) \
- netdev_printk(KERN_DEBUG, dev, format, ##args); \
- 0; \
- })
- #endif
- /* netif printk helpers, similar to netdev_printk */
- #define netif_printk(priv, type, level, dev, fmt, args...) \
- do { \
- if (netif_msg_##type(priv)) \
- netdev_printk(level, (dev), fmt, ##args); \
- } while (0)
- #define netif_level(level, priv, type, dev, fmt, args...) \
- do { \
- if (netif_msg_##type(priv)) \
- netdev_##level(dev, fmt, ##args); \
- } while (0)
- #define netif_emerg(priv, type, dev, fmt, args...) \
- netif_level(emerg, priv, type, dev, fmt, ##args)
- #define netif_alert(priv, type, dev, fmt, args...) \
- netif_level(alert, priv, type, dev, fmt, ##args)
- #define netif_crit(priv, type, dev, fmt, args...) \
- netif_level(crit, priv, type, dev, fmt, ##args)
- #define netif_err(priv, type, dev, fmt, args...) \
- netif_level(err, priv, type, dev, fmt, ##args)
- #define netif_warn(priv, type, dev, fmt, args...) \
- netif_level(warn, priv, type, dev, fmt, ##args)
- #define netif_notice(priv, type, dev, fmt, args...) \
- netif_level(notice, priv, type, dev, fmt, ##args)
- #define netif_info(priv, type, dev, fmt, args...) \
- netif_level(info, priv, type, dev, fmt, ##args)
- #if defined(CONFIG_DYNAMIC_DEBUG) || \
- (defined(CONFIG_DYNAMIC_DEBUG_CORE) && defined(DYNAMIC_DEBUG_MODULE))
- #define netif_dbg(priv, type, netdev, format, args...) \
- do { \
- if (netif_msg_##type(priv)) \
- dynamic_netdev_dbg(netdev, format, ##args); \
- } while (0)
- #elif defined(DEBUG)
- #define netif_dbg(priv, type, dev, format, args...) \
- netif_printk(priv, type, KERN_DEBUG, dev, format, ##args)
- #else
- #define netif_dbg(priv, type, dev, format, args...) \
- ({ \
- if (0) \
- netif_printk(priv, type, KERN_DEBUG, dev, format, ##args); \
- 0; \
- })
- #endif
- /* if @cond then downgrade to debug, else print at @level */
- #define netif_cond_dbg(priv, type, netdev, cond, level, fmt, args...) \
- do { \
- if (cond) \
- netif_dbg(priv, type, netdev, fmt, ##args); \
- else \
- netif_ ## level(priv, type, netdev, fmt, ##args); \
- } while (0)
- #if defined(VERBOSE_DEBUG)
- #define netif_vdbg netif_dbg
- #else
- #define netif_vdbg(priv, type, dev, format, args...) \
- ({ \
- if (0) \
- netif_printk(priv, type, KERN_DEBUG, dev, format, ##args); \
- 0; \
- })
- #endif
- #if defined(CONFIG_DEBUG_NET)
- #define DEBUG_NET_WARN_ON_ONCE(cond) (void)WARN_ON_ONCE(cond)
- #else
- #define DEBUG_NET_WARN_ON_ONCE(cond) BUILD_BUG_ON_INVALID(cond)
- #endif
- #endif /* _LINUX_NET_DEBUG_H */
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