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-rw-r--r--net/batman-adv/main.h11
1 files changed, 11 insertions, 0 deletions
diff --git a/net/batman-adv/main.h b/net/batman-adv/main.h
index 86354e06eb4..f9c659b3f3a 100644
--- a/net/batman-adv/main.h
+++ b/net/batman-adv/main.h
@@ -202,6 +202,17 @@ static inline int compare_eth(const void *data1, const void *data2)
return (memcmp(data1, data2, ETH_ALEN) == 0 ? 1 : 0);
}
+/**
+ * has_timed_out - compares current time (jiffies) and timestamp + timeout
+ * @timestamp: base value to compare with (in jiffies)
+ * @timeout: added to base value before comparing (in milliseconds)
+ *
+ * Returns true if current time is after timestamp + timeout
+ */
+static inline bool has_timed_out(unsigned long timestamp, unsigned int timeout)
+{
+ return time_is_before_jiffies(timestamp + msecs_to_jiffies(timeout));
+}
#define atomic_dec_not_zero(v) atomic_add_unless((v), -1, 0)