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device.h: move dev_printk()-like functions to dev_printk.h
device.h has everything and the kitchen sink when it comes to struct device things, so split out the printk-specific things to a separate .h file to make things easier to maintain and manage over time. Cc: Suzuki K Poulose <suzuki.poulose@arm.com> Cc: "Rafael J. Wysocki" <rafael.j.wysocki@intel.com> Cc: Saravana Kannan <saravanak@google.com> Cc: Heikki Krogerus <heikki.krogerus@linux.intel.com> Link: https://lore.kernel.org/r/20191209193303.1694546-4-gregkh@linuxfoundation.org Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
Greg Kroah-Hartman
parent
cf901a1c5d
commit
af628aae86
2 changed files with 236 additions and 216 deletions
235
include/linux/dev_printk.h
Normal file
235
include/linux/dev_printk.h
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@ -0,0 +1,235 @@
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// SPDX-License-Identifier: GPL-2.0
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/*
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* dev_printk.h - printk messages helpers for devices
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*
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* Copyright (c) 2001-2003 Patrick Mochel <mochel@osdl.org>
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* Copyright (c) 2004-2009 Greg Kroah-Hartman <gregkh@suse.de>
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* Copyright (c) 2008-2009 Novell Inc.
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*
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*/
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#ifndef _DEVICE_PRINTK_H_
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#define _DEVICE_PRINTK_H_
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#include <linux/compiler.h>
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#include <linux/types.h>
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#include <linux/ratelimit.h>
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#ifndef dev_fmt
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#define dev_fmt(fmt) fmt
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#endif
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struct device;
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#ifdef CONFIG_PRINTK
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__printf(3, 0) __cold
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int dev_vprintk_emit(int level, const struct device *dev,
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const char *fmt, va_list args);
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__printf(3, 4) __cold
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int dev_printk_emit(int level, const struct device *dev, const char *fmt, ...);
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__printf(3, 4) __cold
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void dev_printk(const char *level, const struct device *dev,
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const char *fmt, ...);
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__printf(2, 3) __cold
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void _dev_emerg(const struct device *dev, const char *fmt, ...);
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__printf(2, 3) __cold
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void _dev_alert(const struct device *dev, const char *fmt, ...);
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__printf(2, 3) __cold
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void _dev_crit(const struct device *dev, const char *fmt, ...);
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__printf(2, 3) __cold
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void _dev_err(const struct device *dev, const char *fmt, ...);
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__printf(2, 3) __cold
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void _dev_warn(const struct device *dev, const char *fmt, ...);
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__printf(2, 3) __cold
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void _dev_notice(const struct device *dev, const char *fmt, ...);
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__printf(2, 3) __cold
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void _dev_info(const struct device *dev, const char *fmt, ...);
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#else
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static inline __printf(3, 0)
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int dev_vprintk_emit(int level, const struct device *dev,
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const char *fmt, va_list args)
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{ return 0; }
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static inline __printf(3, 4)
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int dev_printk_emit(int level, const struct device *dev, const char *fmt, ...)
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{ return 0; }
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static inline void __dev_printk(const char *level, const struct device *dev,
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struct va_format *vaf)
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{}
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static inline __printf(3, 4)
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void dev_printk(const char *level, const struct device *dev,
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const char *fmt, ...)
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{}
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static inline __printf(2, 3)
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void _dev_emerg(const struct device *dev, const char *fmt, ...)
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{}
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static inline __printf(2, 3)
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void _dev_crit(const struct device *dev, const char *fmt, ...)
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{}
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static inline __printf(2, 3)
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void _dev_alert(const struct device *dev, const char *fmt, ...)
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{}
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static inline __printf(2, 3)
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void _dev_err(const struct device *dev, const char *fmt, ...)
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{}
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static inline __printf(2, 3)
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void _dev_warn(const struct device *dev, const char *fmt, ...)
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{}
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static inline __printf(2, 3)
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void _dev_notice(const struct device *dev, const char *fmt, ...)
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{}
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static inline __printf(2, 3)
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void _dev_info(const struct device *dev, const char *fmt, ...)
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{}
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#endif
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/*
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* #defines for all the dev_<level> macros to prefix with whatever
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* possible use of #define dev_fmt(fmt) ...
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*/
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#define dev_emerg(dev, fmt, ...) \
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_dev_emerg(dev, dev_fmt(fmt), ##__VA_ARGS__)
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#define dev_crit(dev, fmt, ...) \
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_dev_crit(dev, dev_fmt(fmt), ##__VA_ARGS__)
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#define dev_alert(dev, fmt, ...) \
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_dev_alert(dev, dev_fmt(fmt), ##__VA_ARGS__)
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#define dev_err(dev, fmt, ...) \
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_dev_err(dev, dev_fmt(fmt), ##__VA_ARGS__)
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#define dev_warn(dev, fmt, ...) \
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_dev_warn(dev, dev_fmt(fmt), ##__VA_ARGS__)
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#define dev_notice(dev, fmt, ...) \
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_dev_notice(dev, dev_fmt(fmt), ##__VA_ARGS__)
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#define dev_info(dev, fmt, ...) \
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_dev_info(dev, dev_fmt(fmt), ##__VA_ARGS__)
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#if defined(CONFIG_DYNAMIC_DEBUG)
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#define dev_dbg(dev, fmt, ...) \
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dynamic_dev_dbg(dev, dev_fmt(fmt), ##__VA_ARGS__)
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#elif defined(DEBUG)
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#define dev_dbg(dev, fmt, ...) \
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dev_printk(KERN_DEBUG, dev, dev_fmt(fmt), ##__VA_ARGS__)
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#else
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#define dev_dbg(dev, fmt, ...) \
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({ \
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if (0) \
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dev_printk(KERN_DEBUG, dev, dev_fmt(fmt), ##__VA_ARGS__); \
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})
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#endif
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#ifdef CONFIG_PRINTK
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#define dev_level_once(dev_level, dev, fmt, ...) \
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do { \
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static bool __print_once __read_mostly; \
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\
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if (!__print_once) { \
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__print_once = true; \
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dev_level(dev, fmt, ##__VA_ARGS__); \
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} \
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} while (0)
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#else
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#define dev_level_once(dev_level, dev, fmt, ...) \
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do { \
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if (0) \
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dev_level(dev, fmt, ##__VA_ARGS__); \
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} while (0)
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#endif
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#define dev_emerg_once(dev, fmt, ...) \
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dev_level_once(dev_emerg, dev, fmt, ##__VA_ARGS__)
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#define dev_alert_once(dev, fmt, ...) \
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dev_level_once(dev_alert, dev, fmt, ##__VA_ARGS__)
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#define dev_crit_once(dev, fmt, ...) \
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dev_level_once(dev_crit, dev, fmt, ##__VA_ARGS__)
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#define dev_err_once(dev, fmt, ...) \
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dev_level_once(dev_err, dev, fmt, ##__VA_ARGS__)
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#define dev_warn_once(dev, fmt, ...) \
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dev_level_once(dev_warn, dev, fmt, ##__VA_ARGS__)
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#define dev_notice_once(dev, fmt, ...) \
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dev_level_once(dev_notice, dev, fmt, ##__VA_ARGS__)
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#define dev_info_once(dev, fmt, ...) \
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dev_level_once(dev_info, dev, fmt, ##__VA_ARGS__)
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#define dev_dbg_once(dev, fmt, ...) \
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dev_level_once(dev_dbg, dev, fmt, ##__VA_ARGS__)
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#define dev_level_ratelimited(dev_level, dev, fmt, ...) \
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do { \
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static DEFINE_RATELIMIT_STATE(_rs, \
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DEFAULT_RATELIMIT_INTERVAL, \
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DEFAULT_RATELIMIT_BURST); \
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if (__ratelimit(&_rs)) \
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dev_level(dev, fmt, ##__VA_ARGS__); \
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} while (0)
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#define dev_emerg_ratelimited(dev, fmt, ...) \
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dev_level_ratelimited(dev_emerg, dev, fmt, ##__VA_ARGS__)
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#define dev_alert_ratelimited(dev, fmt, ...) \
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dev_level_ratelimited(dev_alert, dev, fmt, ##__VA_ARGS__)
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#define dev_crit_ratelimited(dev, fmt, ...) \
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dev_level_ratelimited(dev_crit, dev, fmt, ##__VA_ARGS__)
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#define dev_err_ratelimited(dev, fmt, ...) \
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dev_level_ratelimited(dev_err, dev, fmt, ##__VA_ARGS__)
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#define dev_warn_ratelimited(dev, fmt, ...) \
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dev_level_ratelimited(dev_warn, dev, fmt, ##__VA_ARGS__)
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#define dev_notice_ratelimited(dev, fmt, ...) \
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dev_level_ratelimited(dev_notice, dev, fmt, ##__VA_ARGS__)
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#define dev_info_ratelimited(dev, fmt, ...) \
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dev_level_ratelimited(dev_info, dev, fmt, ##__VA_ARGS__)
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#if defined(CONFIG_DYNAMIC_DEBUG)
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/* descriptor check is first to prevent flooding with "callbacks suppressed" */
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#define dev_dbg_ratelimited(dev, fmt, ...) \
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do { \
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static DEFINE_RATELIMIT_STATE(_rs, \
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DEFAULT_RATELIMIT_INTERVAL, \
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DEFAULT_RATELIMIT_BURST); \
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DEFINE_DYNAMIC_DEBUG_METADATA(descriptor, fmt); \
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if (DYNAMIC_DEBUG_BRANCH(descriptor) && \
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__ratelimit(&_rs)) \
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__dynamic_dev_dbg(&descriptor, dev, dev_fmt(fmt), \
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##__VA_ARGS__); \
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} while (0)
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#elif defined(DEBUG)
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#define dev_dbg_ratelimited(dev, fmt, ...) \
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do { \
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static DEFINE_RATELIMIT_STATE(_rs, \
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DEFAULT_RATELIMIT_INTERVAL, \
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DEFAULT_RATELIMIT_BURST); \
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if (__ratelimit(&_rs)) \
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dev_printk(KERN_DEBUG, dev, dev_fmt(fmt), ##__VA_ARGS__); \
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} while (0)
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#else
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#define dev_dbg_ratelimited(dev, fmt, ...) \
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do { \
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if (0) \
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dev_printk(KERN_DEBUG, dev, dev_fmt(fmt), ##__VA_ARGS__); \
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} while (0)
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#endif
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#ifdef VERBOSE_DEBUG
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#define dev_vdbg dev_dbg
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#else
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#define dev_vdbg(dev, fmt, ...) \
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({ \
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if (0) \
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dev_printk(KERN_DEBUG, dev, dev_fmt(fmt), ##__VA_ARGS__); \
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})
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#endif
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/*
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* dev_WARN*() acts like dev_printk(), but with the key difference of
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* using WARN/WARN_ONCE to include file/line information and a backtrace.
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*/
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#define dev_WARN(dev, format, arg...) \
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WARN(1, "%s %s: " format, dev_driver_string(dev), dev_name(dev), ## arg);
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#define dev_WARN_ONCE(dev, condition, format, arg...) \
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WARN_ONCE(condition, "%s %s: " format, \
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dev_driver_string(dev), dev_name(dev), ## arg)
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#endif /* _DEVICE_PRINTK_H_ */
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@ -12,6 +12,7 @@
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#ifndef _DEVICE_H_
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#define _DEVICE_H_
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#include <linux/dev_printk.h>
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#include <linux/ioport.h>
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#include <linux/kobject.h>
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#include <linux/klist.h>
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@ -22,7 +23,6 @@
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#include <linux/mutex.h>
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#include <linux/pm.h>
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#include <linux/atomic.h>
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#include <linux/ratelimit.h>
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#include <linux/uidgid.h>
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#include <linux/gfp.h>
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#include <linux/overflow.h>
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@ -1683,221 +1683,6 @@ void device_link_remove(void *consumer, struct device *supplier);
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void device_links_supplier_sync_state_pause(void);
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void device_links_supplier_sync_state_resume(void);
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#ifndef dev_fmt
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#define dev_fmt(fmt) fmt
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#endif
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#ifdef CONFIG_PRINTK
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__printf(3, 0) __cold
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int dev_vprintk_emit(int level, const struct device *dev,
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const char *fmt, va_list args);
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__printf(3, 4) __cold
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int dev_printk_emit(int level, const struct device *dev, const char *fmt, ...);
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__printf(3, 4) __cold
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void dev_printk(const char *level, const struct device *dev,
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const char *fmt, ...);
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__printf(2, 3) __cold
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void _dev_emerg(const struct device *dev, const char *fmt, ...);
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__printf(2, 3) __cold
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void _dev_alert(const struct device *dev, const char *fmt, ...);
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__printf(2, 3) __cold
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void _dev_crit(const struct device *dev, const char *fmt, ...);
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__printf(2, 3) __cold
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void _dev_err(const struct device *dev, const char *fmt, ...);
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__printf(2, 3) __cold
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void _dev_warn(const struct device *dev, const char *fmt, ...);
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__printf(2, 3) __cold
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void _dev_notice(const struct device *dev, const char *fmt, ...);
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__printf(2, 3) __cold
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void _dev_info(const struct device *dev, const char *fmt, ...);
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#else
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static inline __printf(3, 0)
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int dev_vprintk_emit(int level, const struct device *dev,
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const char *fmt, va_list args)
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{ return 0; }
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static inline __printf(3, 4)
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int dev_printk_emit(int level, const struct device *dev, const char *fmt, ...)
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{ return 0; }
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static inline void __dev_printk(const char *level, const struct device *dev,
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struct va_format *vaf)
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{}
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static inline __printf(3, 4)
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void dev_printk(const char *level, const struct device *dev,
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const char *fmt, ...)
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{}
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static inline __printf(2, 3)
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void _dev_emerg(const struct device *dev, const char *fmt, ...)
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{}
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static inline __printf(2, 3)
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void _dev_crit(const struct device *dev, const char *fmt, ...)
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{}
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static inline __printf(2, 3)
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void _dev_alert(const struct device *dev, const char *fmt, ...)
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{}
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static inline __printf(2, 3)
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void _dev_err(const struct device *dev, const char *fmt, ...)
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{}
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static inline __printf(2, 3)
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void _dev_warn(const struct device *dev, const char *fmt, ...)
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{}
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static inline __printf(2, 3)
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void _dev_notice(const struct device *dev, const char *fmt, ...)
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{}
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static inline __printf(2, 3)
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void _dev_info(const struct device *dev, const char *fmt, ...)
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{}
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#endif
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/*
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* #defines for all the dev_<level> macros to prefix with whatever
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* possible use of #define dev_fmt(fmt) ...
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*/
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#define dev_emerg(dev, fmt, ...) \
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_dev_emerg(dev, dev_fmt(fmt), ##__VA_ARGS__)
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#define dev_crit(dev, fmt, ...) \
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_dev_crit(dev, dev_fmt(fmt), ##__VA_ARGS__)
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#define dev_alert(dev, fmt, ...) \
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_dev_alert(dev, dev_fmt(fmt), ##__VA_ARGS__)
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#define dev_err(dev, fmt, ...) \
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_dev_err(dev, dev_fmt(fmt), ##__VA_ARGS__)
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#define dev_warn(dev, fmt, ...) \
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_dev_warn(dev, dev_fmt(fmt), ##__VA_ARGS__)
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#define dev_notice(dev, fmt, ...) \
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_dev_notice(dev, dev_fmt(fmt), ##__VA_ARGS__)
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#define dev_info(dev, fmt, ...) \
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_dev_info(dev, dev_fmt(fmt), ##__VA_ARGS__)
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#if defined(CONFIG_DYNAMIC_DEBUG)
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#define dev_dbg(dev, fmt, ...) \
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dynamic_dev_dbg(dev, dev_fmt(fmt), ##__VA_ARGS__)
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#elif defined(DEBUG)
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#define dev_dbg(dev, fmt, ...) \
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dev_printk(KERN_DEBUG, dev, dev_fmt(fmt), ##__VA_ARGS__)
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#else
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#define dev_dbg(dev, fmt, ...) \
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({ \
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if (0) \
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dev_printk(KERN_DEBUG, dev, dev_fmt(fmt), ##__VA_ARGS__); \
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})
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#endif
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#ifdef CONFIG_PRINTK
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#define dev_level_once(dev_level, dev, fmt, ...) \
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do { \
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static bool __print_once __read_mostly; \
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\
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if (!__print_once) { \
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__print_once = true; \
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dev_level(dev, fmt, ##__VA_ARGS__); \
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} \
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} while (0)
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#else
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#define dev_level_once(dev_level, dev, fmt, ...) \
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do { \
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if (0) \
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dev_level(dev, fmt, ##__VA_ARGS__); \
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} while (0)
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#endif
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#define dev_emerg_once(dev, fmt, ...) \
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dev_level_once(dev_emerg, dev, fmt, ##__VA_ARGS__)
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#define dev_alert_once(dev, fmt, ...) \
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dev_level_once(dev_alert, dev, fmt, ##__VA_ARGS__)
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#define dev_crit_once(dev, fmt, ...) \
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dev_level_once(dev_crit, dev, fmt, ##__VA_ARGS__)
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#define dev_err_once(dev, fmt, ...) \
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dev_level_once(dev_err, dev, fmt, ##__VA_ARGS__)
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#define dev_warn_once(dev, fmt, ...) \
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dev_level_once(dev_warn, dev, fmt, ##__VA_ARGS__)
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#define dev_notice_once(dev, fmt, ...) \
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dev_level_once(dev_notice, dev, fmt, ##__VA_ARGS__)
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#define dev_info_once(dev, fmt, ...) \
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dev_level_once(dev_info, dev, fmt, ##__VA_ARGS__)
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#define dev_dbg_once(dev, fmt, ...) \
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dev_level_once(dev_dbg, dev, fmt, ##__VA_ARGS__)
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#define dev_level_ratelimited(dev_level, dev, fmt, ...) \
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do { \
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static DEFINE_RATELIMIT_STATE(_rs, \
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DEFAULT_RATELIMIT_INTERVAL, \
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DEFAULT_RATELIMIT_BURST); \
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if (__ratelimit(&_rs)) \
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dev_level(dev, fmt, ##__VA_ARGS__); \
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} while (0)
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#define dev_emerg_ratelimited(dev, fmt, ...) \
|
||||
dev_level_ratelimited(dev_emerg, dev, fmt, ##__VA_ARGS__)
|
||||
#define dev_alert_ratelimited(dev, fmt, ...) \
|
||||
dev_level_ratelimited(dev_alert, dev, fmt, ##__VA_ARGS__)
|
||||
#define dev_crit_ratelimited(dev, fmt, ...) \
|
||||
dev_level_ratelimited(dev_crit, dev, fmt, ##__VA_ARGS__)
|
||||
#define dev_err_ratelimited(dev, fmt, ...) \
|
||||
dev_level_ratelimited(dev_err, dev, fmt, ##__VA_ARGS__)
|
||||
#define dev_warn_ratelimited(dev, fmt, ...) \
|
||||
dev_level_ratelimited(dev_warn, dev, fmt, ##__VA_ARGS__)
|
||||
#define dev_notice_ratelimited(dev, fmt, ...) \
|
||||
dev_level_ratelimited(dev_notice, dev, fmt, ##__VA_ARGS__)
|
||||
#define dev_info_ratelimited(dev, fmt, ...) \
|
||||
dev_level_ratelimited(dev_info, dev, fmt, ##__VA_ARGS__)
|
||||
#if defined(CONFIG_DYNAMIC_DEBUG)
|
||||
/* descriptor check is first to prevent flooding with "callbacks suppressed" */
|
||||
#define dev_dbg_ratelimited(dev, fmt, ...) \
|
||||
do { \
|
||||
static DEFINE_RATELIMIT_STATE(_rs, \
|
||||
DEFAULT_RATELIMIT_INTERVAL, \
|
||||
DEFAULT_RATELIMIT_BURST); \
|
||||
DEFINE_DYNAMIC_DEBUG_METADATA(descriptor, fmt); \
|
||||
if (DYNAMIC_DEBUG_BRANCH(descriptor) && \
|
||||
__ratelimit(&_rs)) \
|
||||
__dynamic_dev_dbg(&descriptor, dev, dev_fmt(fmt), \
|
||||
##__VA_ARGS__); \
|
||||
} while (0)
|
||||
#elif defined(DEBUG)
|
||||
#define dev_dbg_ratelimited(dev, fmt, ...) \
|
||||
do { \
|
||||
static DEFINE_RATELIMIT_STATE(_rs, \
|
||||
DEFAULT_RATELIMIT_INTERVAL, \
|
||||
DEFAULT_RATELIMIT_BURST); \
|
||||
if (__ratelimit(&_rs)) \
|
||||
dev_printk(KERN_DEBUG, dev, dev_fmt(fmt), ##__VA_ARGS__); \
|
||||
} while (0)
|
||||
#else
|
||||
#define dev_dbg_ratelimited(dev, fmt, ...) \
|
||||
do { \
|
||||
if (0) \
|
||||
dev_printk(KERN_DEBUG, dev, dev_fmt(fmt), ##__VA_ARGS__); \
|
||||
} while (0)
|
||||
#endif
|
||||
|
||||
#ifdef VERBOSE_DEBUG
|
||||
#define dev_vdbg dev_dbg
|
||||
#else
|
||||
#define dev_vdbg(dev, fmt, ...) \
|
||||
({ \
|
||||
if (0) \
|
||||
dev_printk(KERN_DEBUG, dev, dev_fmt(fmt), ##__VA_ARGS__); \
|
||||
})
|
||||
#endif
|
||||
|
||||
/*
|
||||
* dev_WARN*() acts like dev_printk(), but with the key difference of
|
||||
* using WARN/WARN_ONCE to include file/line information and a backtrace.
|
||||
*/
|
||||
#define dev_WARN(dev, format, arg...) \
|
||||
WARN(1, "%s %s: " format, dev_driver_string(dev), dev_name(dev), ## arg);
|
||||
|
||||
#define dev_WARN_ONCE(dev, condition, format, arg...) \
|
||||
WARN_ONCE(condition, "%s %s: " format, \
|
||||
dev_driver_string(dev), dev_name(dev), ## arg)
|
||||
|
||||
/* Create alias, so I can be autoloaded. */
|
||||
#define MODULE_ALIAS_CHARDEV(major,minor) \
|
||||
MODULE_ALIAS("char-major-" __stringify(major) "-" __stringify(minor))
|
||||
|
|
|
|||
Loading…
Reference in a new issue