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Date: Wed, 16 Dec 2009 00:09:11 -0800
From: Joe Perches <joe@...ches.com>
To: Linus Torvalds <torvalds@...ux-foundation.org>
Cc: linux-kernel@...r.kernel.org
Subject: [PATCH 12/14] kernel.h: Add pr_<level>_once
Consolidate the define and use of printk_once near printk_ratelimited
Add pr_<level>_once macros that use pr_fmt(fmt)
A little alignment neatening
Signed-off-by: Joe Perches <joe@...ches.com>
---
include/linux/kernel.h | 105 +++++++++++++++++++++++++++++++----------------
1 files changed, 69 insertions(+), 36 deletions(-)
diff --git a/include/linux/kernel.h b/include/linux/kernel.h
index e079744..7d7f7e2 100644
--- a/include/linux/kernel.h
+++ b/include/linux/kernel.h
@@ -434,19 +434,6 @@ extern bool printk_timed_ratelimit(unsigned long *caller_jiffies,
extern int printk_delay_msec;
-/*
- * Print a one-time message (analogous to WARN_ONCE() et al):
- */
-#define printk_once(fmt, ...) \
-({ \
- static bool __print_once; \
- \
- if (!__print_once) { \
- __print_once = true; \
- printk(fmt, ##__VA_ARGS__); \
- } \
-})
-
void log_buf_kexec_setup(void);
#else
static inline int vprintk(const char *s, va_list args)
@@ -462,9 +449,6 @@ static inline bool printk_timed_ratelimit(unsigned long *caller_jiffies,
return false;
}
-/* No effect, but we still get type checking even in the !PRINTK case: */
-#define printk_once(fmt, ...) printk(fmt, ##__VA_ARGS__)
-
static inline void log_buf_kexec_setup(void)
{
}
@@ -514,26 +498,26 @@ extern void print_hex_dump_bytes(const char *prefix_str, int prefix_type,
#define pr_fmt(fmt) fmt
#endif
-#define pr_emerg(fmt, ...) \
+#define pr_emerg(fmt, ...) \
printk(KERN_EMERG pr_fmt(fmt), ##__VA_ARGS__)
-#define pr_alert(fmt, ...) \
+#define pr_alert(fmt, ...) \
printk(KERN_ALERT pr_fmt(fmt), ##__VA_ARGS__)
-#define pr_crit(fmt, ...) \
+#define pr_crit(fmt, ...) \
printk(KERN_CRIT pr_fmt(fmt), ##__VA_ARGS__)
-#define pr_err(fmt, ...) \
+#define pr_err(fmt, ...) \
printk(KERN_ERR pr_fmt(fmt), ##__VA_ARGS__)
-#define pr_warning(fmt, ...) \
+#define pr_warning(fmt, ...) \
printk(KERN_WARNING pr_fmt(fmt), ##__VA_ARGS__)
-#define pr_notice(fmt, ...) \
+#define pr_notice(fmt, ...) \
printk(KERN_NOTICE pr_fmt(fmt), ##__VA_ARGS__)
-#define pr_info(fmt, ...) \
+#define pr_info(fmt, ...) \
printk(KERN_INFO pr_fmt(fmt), ##__VA_ARGS__)
-#define pr_cont(fmt, ...) \
+#define pr_cont(fmt, ...) \
printk(KERN_CONT fmt, ##__VA_ARGS__)
/* pr_devel() should produce zero code unless DEBUG is defined */
#ifdef DEBUG
-#define pr_devel(fmt, ...) \
+#define pr_devel(fmt, ...) \
printk(KERN_DEBUG pr_fmt(fmt), ##__VA_ARGS__)
#else
#define pr_devel(fmt, ...) \
@@ -546,11 +530,11 @@ extern void print_hex_dump_bytes(const char *prefix_str, int prefix_type,
/* If you are writing a driver, please use dev_dbg instead */
#if defined(DEBUG)
-#define pr_debug(fmt, ...) \
+#define pr_debug(fmt, ...) \
printk(KERN_DEBUG pr_fmt(fmt), ##__VA_ARGS__)
#elif defined(CONFIG_DYNAMIC_DEBUG)
/* dynamic_pr_debug() uses pr_fmt() internally so we don't need it here */
-#define pr_debug(fmt, ...) \
+#define pr_debug(fmt, ...) \
dynamic_pr_debug(fmt, ##__VA_ARGS__)
#else
#define pr_debug(fmt, ...) \
@@ -562,19 +546,68 @@ extern void print_hex_dump_bytes(const char *prefix_str, int prefix_type,
#endif
/*
+ * Print a one-time message (analogous to WARN_ONCE() et al):
+ * no local state used in the !PRINTK case
+ */
+#ifdef CONFIG_PRINTK
+#define printk_once(fmt, ...) \
+({ \
+ static bool __print_once; \
+ \
+ if (!__print_once) { \
+ __print_once = true; \
+ printk(fmt, ##__VA_ARGS__); \
+ } \
+})
+
+#else
+/* No effect, but we still get type checking even in the !PRINTK case: */
+#define printk_once(fmt, ...) printk(fmt, ##__VA_ARGS__)
+#endif
+
+#define pr_emerg_once(fmt, ...) \
+ printk_once(KERN_EMERG pr_fmt(fmt), ##__VA_ARGS__)
+#define pr_alert_once(fmt, ...) \
+ printk_once(KERN_ALERT pr_fmt(fmt), ##__VA_ARGS__)
+#define pr_crit_once(fmt, ...) \
+ printk_once(KERN_CRIT pr_fmt(fmt), ##__VA_ARGS__)
+#define pr_err_once(fmt, ...) \
+ printk_once(KERN_ERR pr_fmt(fmt), ##__VA_ARGS__)
+#define pr_warning_once(fmt, ...) \
+ printk_once(KERN_WARNING pr_fmt(fmt), ##__VA_ARGS__)
+#define pr_notice_once(fmt, ...) \
+ printk_once(KERN_NOTICE pr_fmt(fmt), ##__VA_ARGS__)
+#define pr_info_once(fmt, ...) \
+ printk_once(KERN_INFO pr_fmt(fmt), ##__VA_ARGS__)
+/* no pr_cont_once, don't do that... */
+/* If you are writing a driver, please use dev_dbg instead */
+#if defined(DEBUG)
+#define pr_debug_once(fmt, ...) \
+ printk_once(KERN_DEBUG pr_fmt(fmt), ##__VA_ARGS__)
+#else
+#define pr_debug_once(fmt, ...) \
+({ \
+ if (0) \
+ printk_once(KERN_DEBUG pr_fmt(fmt), \
+ ##__VA_ARGS__); \
+ 0; \
+})
+#endif
+
+/*
* ratelimited messages with local ratelimit_state,
* no local ratelimit_state used in the !PRINTK case
*/
#ifdef CONFIG_PRINTK
-#define printk_ratelimited(fmt, ...) \
-({ \
- static struct ratelimit_state _rs = { \
- .interval = DEFAULT_RATELIMIT_INTERVAL, \
- .burst = DEFAULT_RATELIMIT_BURST, \
- }; \
- \
- if (!__ratelimit(&_rs)) \
- printk(fmt, ##__VA_ARGS__); \
+#define printk_ratelimited(fmt, ...) \
+({ \
+ static struct ratelimit_state _rs = { \
+ .interval = DEFAULT_RATELIMIT_INTERVAL, \
+ .burst = DEFAULT_RATELIMIT_BURST, \
+ }; \
+ \
+ if (!__ratelimit(&_rs)) \
+ printk(fmt, ##__VA_ARGS__); \
})
#else
/* No effect, but we still get type checking even in the !PRINTK case: */
--
1.6.6.rc0.57.gad7a
--
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