Add mt76_{incr,decr} utility routines to increment/decrement a value
with wrap-around (they will be used by mt76x2 DFS sw detector)Signed-off-by: Lorenzo Bianconi <[email protected]> --- drivers/net/wireless/mediatek/mt76/mt76.h | 12 ++++++++++++ 1 file changed, 12 insertions(+) diff --git a/drivers/net/wireless/mediatek/mt76/mt76.h b/drivers/net/wireless/mediatek/mt76/mt76.h index d2166fbf50ff..96e9798bb8a0 100644 --- a/drivers/net/wireless/mediatek/mt76/mt76.h +++ b/drivers/net/wireless/mediatek/mt76/mt76.h @@ -390,6 +390,18 @@ struct dentry *mt76_register_debugfs(struct mt76_dev *dev); int mt76_eeprom_init(struct mt76_dev *dev, int len); void mt76_eeprom_override(struct mt76_dev *dev); +/* increment with wrap-around */ +static inline int mt76_incr(int val, int size) +{ + return (val + 1) & (size - 1); +} + +/* decrement with wrap-around */ +static inline int mt76_decr(int val, int size) +{ + return (val - 1) & (size - 1); +} + static inline struct ieee80211_txq * mtxq_to_txq(struct mt76_txq *mtxq) { -- 2.17.1
