The mt7601u driver makes use of some of these functions and they are
not available on kernel version < 3.19.
Signed-off-by: Hauke Mehrtens <ha...@hauke-m.de>
---
backport/backport-include/linux/device.h | 37 ++++++++++++++++++++++++++++++++
1 file changed, 37 insertions(+)
diff --git a/backport/backport-include/linux/device.h
b/backport/backport-include/linux/device.h
index 03ca1f1..539fd50 100644
--- a/backport/backport-include/linux/device.h
+++ b/backport/backport-include/linux/device.h
@@ -199,5 +199,42 @@ static inline void *devm_kmemdup(struct device *dev, const
void *src,
}
#endif
+#ifndef dev_level_once
+#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_dbg, dev, fmt, ##__VA_ARGS__)
+#endif /* dev_level_once */
+
#endif /* __BACKPORT_DEVICE_H */
--
2.1.4
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