device: Add dev_<level>_once variants

Add the equivalents to pr_<level>_once.

Suggested-by: Florian Fainelli <f.fainelli@gmail.com>
Signed-off-by: Joe Perches <joe@perches.com>
Acked-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

1 files changed, 35 insertions, 0 deletions

diff --git a/include/linux/device.h b/include/linux/device.h
index ce1f21608b16..99fb07cb4f06 100644
--- a/include/linux/device.h
+++ b/include/linux/device.h
@@ -1118,6 +1118,41 @@ do {						     \
 })
 #endif
 
+#ifdef CONFIG_PRINTK
+#define dev_level_once(dev_level, dev, fmt, ...)                        \
+do {                                                                    \
+        static bool __print_once __read_mostly;                         \
+                                                                        \
+        if (!__print_once) {                                            \
+                __print_once = true;                                    \
+                dev_level(dev, fmt, ##__VA_ARGS__);                     \
+        }                                                               \
+} while (0)
+#else
+#define dev_level_once(dev_level, dev, fmt, ...)                        \
+do {                                                                    \
+        if (0)                                                          \
+                dev_level(dev, fmt, ##__VA_ARGS__);                     \
+} while (0)
+#endif
+
+#define dev_emerg_once(dev, fmt, ...)                                   \
+        dev_level_once(dev_emerg, dev, fmt, ##__VA_ARGS__)
+#define dev_alert_once(dev, fmt, ...)                                   \
+        dev_level_once(dev_alert, dev, fmt, ##__VA_ARGS__)
+#define dev_crit_once(dev, fmt, ...)                                    \
+        dev_level_once(dev_crit, dev, fmt, ##__VA_ARGS__)
+#define dev_err_once(dev, fmt, ...)                                     \
+        dev_level_once(dev_err, dev, fmt, ##__VA_ARGS__)
+#define dev_warn_once(dev, fmt, ...)                                    \
+        dev_level_once(dev_warn, dev, fmt, ##__VA_ARGS__)
+#define dev_notice_once(dev, fmt, ...)                                  \
+        dev_level_once(dev_notice, dev, fmt, ##__VA_ARGS__)
+#define dev_info_once(dev, fmt, ...)                                    \
+        dev_level_once(dev_info, dev, fmt, ##__VA_ARGS__)
+#define dev_dbg_once(dev, fmt, ...)                                     \
+        dev_level_once(dev_info, dev, fmt, ##__VA_ARGS__)
+
 #define dev_level_ratelimited(dev_level, dev, fmt, ...)                 \
 do {                                                                    \
         static DEFINE_RATELIMIT_STATE(_rs,                              \