wireless: make TU conversion macros available

A few places in the code (mac80211 and iwlmvm) use the same
TU_TO_JIFFIES() macro and could use TU_TO_EXP_TIME() that
mac80211 has. Make these available to everyone and use them.

Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: Christian Lamparter <chunkeey@googlemail.com>

diff --git a/include/linux/ieee80211.h b/include/linux/ieee80211.h
index be8083d59fd6140ca27db5474e7f68f2106e3aca..77b2ebd482bd0de41fbec855e14fbace2e6d2098 100644 (file)
--- a/include/linux/ieee80211.h
+++ b/include/linux/ieee80211.h
@@ -2306,4 +2306,8 @@ static inline bool ieee80211_check_tim(const struct ieee80211_tim_ie *tim,
        return !!(tim->virtual_map[indexn0] & mask);
 }
 
+/* convert time units */
+#define TU_TO_JIFFIES(x)       (usecs_to_jiffies((x) * 1024))
+#define TU_TO_EXP_TIME(x)      (jiffies + TU_TO_JIFFIES(x))
+
 #endif /* __LINUX_IEEE80211_H */