From e135303bd5bebcd22bcf8a6b06ec0dd5a9432708 Mon Sep 17 00:00:00 2001 From: Joe Perches Date: Mon, 17 Nov 2014 18:18:22 -0800 Subject: device: Add dev__once variants Add the equivalents to pr__once. Suggested-by: Florian Fainelli Signed-off-by: Joe Perches Acked-by: Jeff Kirsher Signed-off-by: Greg Kroah-Hartman --- include/linux/device.h | 35 +++++++++++++++++++++++++++++++++++ 1 file changed, 35 insertions(+) (limited to 'include/linux/device.h') 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, \ -- cgit