diff mbox series

[5/8] auto: promote DIV64_U64_ROUND_CLOSEST macro to function

Message ID 20230518154648.581643-5-adobriyan@gmail.com
State New
Headers
Series [1/8] auto, kbuild: flatten KBUILD_CFLAGS |

Commit Message

Alexey Dobriyan May 18, 2023, 3:46 p.m. UTC 
  Same explanation as for DIV64_U64_ROUND_UP: div64_u64() wants "u64" in
the first argument so using anything wider in calculations before that
doesn't matter.

Signed-off-by: Alexey Dobriyan <adobriyan@gmail.com>
---
 include/linux/math64.h | 6 ++++--
 1 file changed, 4 insertions(+), 2 deletions(-)
diff mbox series

Patch

diff --git a/include/linux/math64.h b/include/linux/math64.h
index 7e0e2625dc35..d8770c8a9cff 100644
--- a/include/linux/math64.h
+++ b/include/linux/math64.h
@@ -313,8 +313,10 @@  static inline u64 DIV64_U64_ROUND_UP(u64 ll, u64 d)
  *
  * Return: dividend / divisor rounded to nearest integer
  */
-#define DIV64_U64_ROUND_CLOSEST(dividend, divisor)	\
-	({ u64 _tmp = (divisor); div64_u64((dividend) + _tmp / 2, _tmp); })
+static inline u64 DIV64_U64_ROUND_CLOSEST(u64 dividend, u64 divisor)
+{
+	return div64_u64(dividend + divisor / 2, divisor);
+}
 
 /**
  * DIV_U64_ROUND_CLOSEST - unsigned 64bit divide with 32bit divisor rounded to nearest integer