Commit 0ce12026 authored by Eliad Peller's avatar Eliad Peller Committed by Johannes Berg
Browse files

cfg80211: fix elapsed_jiffies calculation

MAX_JIFFY_OFFSET has no meaning when calculating the
elapsed jiffies, as jiffies run out until ULONG_MAX.

This miscalculation results in erroneous values
in case of a wrap-around.
Signed-off-by: default avatarEliad Peller <>
Signed-off-by: default avatarJohannes Berg <>
parent e33e2241
......@@ -424,7 +424,7 @@ static inline unsigned int elapsed_jiffies_msecs(unsigned long start)
if (end >= start)
return jiffies_to_msecs(end - start);
return jiffies_to_msecs(end + (MAX_JIFFY_OFFSET - start) + 1);
return jiffies_to_msecs(end + (ULONG_MAX - start) + 1);
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