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authorDmitry Torokhov <dmitry.torokhov@gmail.com>2022-05-27 16:40:01 -0700
committerDmitry Torokhov <dmitry.torokhov@gmail.com>2022-05-27 16:40:01 -0700
commit690e179059e7e89040d1cd564e39761567a8d5dc (patch)
treeb6a64fc5ca4fd862e17559c46676258ae17c87d5 /include/linux/math64.h
parent5f76955ab1e43e5795a9631b22ca4f918a0ae986 (diff)
parent4b0986a3613c92f4ec1bdc7f60ec66fea135991f (diff)
Merge tag 'v5.18' into next
Sync up with mainline to get updates to OMAP4 keypad driver and other upstream goodies.
Diffstat (limited to 'include/linux/math64.h')
-rw-r--r--include/linux/math64.h13
1 files changed, 13 insertions, 0 deletions
diff --git a/include/linux/math64.h b/include/linux/math64.h
index 2928f03d6d46..a14f40de1dca 100644
--- a/include/linux/math64.h
+++ b/include/linux/math64.h
@@ -301,6 +301,19 @@ u64 mul_u64_u64_div_u64(u64 a, u64 mul, u64 div);
({ u64 _tmp = (divisor); div64_u64((dividend) + _tmp / 2, _tmp); })
/*
+ * DIV_U64_ROUND_CLOSEST - unsigned 64bit divide with 32bit divisor rounded to nearest integer
+ * @dividend: unsigned 64bit dividend
+ * @divisor: unsigned 32bit divisor
+ *
+ * Divide unsigned 64bit dividend by unsigned 32bit divisor
+ * and round to closest integer.
+ *
+ * Return: dividend / divisor rounded to nearest integer
+ */
+#define DIV_U64_ROUND_CLOSEST(dividend, divisor) \
+ ({ u32 _tmp = (divisor); div_u64((u64)(dividend) + _tmp / 2, _tmp); })
+
+/*
* DIV_S64_ROUND_CLOSEST - signed 64bit divide with 32bit divisor rounded to nearest integer
* @dividend: signed 64bit dividend
* @divisor: signed 32bit divisor