@@ -12,4 +12,21 @@ static inline void time64_to_tm(time64_t totalsecs, int offset,
}
#endif
+#ifndef time_after32
+/**
+ * time_after32 - compare two 32-bit relative times
+ * @a: the time which may be after @b
+ * @b: the time which may be before @a
+ *
+ * time_after32(a, b) returns true if the time @a is after time @b.
+ * time_before32(b, a) returns true if the time @b is before time @a.
+ *
+ * Similar to time_after(), compare two 32-bit timestamps for relative
+ * times. This is useful for comparing 32-bit seconds values that can't
+ * be converted to 64-bit values (e.g. due to disk format or wire protocol
+ * issues) when it is known that the times are less than 68 years apart.
+ */
+#define time_after32(a, b) ((s32)((u32)(b) - (u32)(a)) < 0)
+#endif
+
#endif /* __BACKPORT_LINUX_TIME_H */
The function time_after32() was added in kernel 4.14 and is now used by the mt76 driver. The code was copied from the upstream kernel. Signed-off-by: Hauke Mehrtens <hauke@hauke-m.de> --- backport/backport-include/linux/time.h | 17 +++++++++++++++++ 1 file changed, 17 insertions(+)