summaryrefslogtreecommitdiff
path: root/include/linux/math64.h
diff options
context:
space:
mode:
authorLiam Beguin <liambeguin@gmail.com>2022-11-18 21:23:08 +0300
committerJonathan Corbet <corbet@lwn.net>2022-11-22 00:30:54 +0300
commit090f13cac84d618d8d391e72646bea462aae9486 (patch)
treeec7d09bed9ac9168880d412d1a8784cc470b3436 /include/linux/math64.h
parentd28a1de5d1128d6caef15fdc04d3f6484dc7264b (diff)
downloadlinux-090f13cac84d618d8d391e72646bea462aae9486.tar.xz
math64: add kernel-doc for DIV64_U64_ROUND_UP
Add kernel-doc for DIV64_U64_ROUND_UP so that it appears in the documentation. Signed-off-by: Liam Beguin <liambeguin@gmail.com> Acked-by: Randy Dunlap <rdunlap@infradead.org> Tested-by: Randy Dunlap <rdunlap@infradead.org> Link: https://lore.kernel.org/r/20221118182309.3824530-2-liambeguin@gmail.com Signed-off-by: Jonathan Corbet <corbet@lwn.net>
Diffstat (limited to 'include/linux/math64.h')
-rw-r--r--include/linux/math64.h10
1 files changed, 10 insertions, 0 deletions
diff --git a/include/linux/math64.h b/include/linux/math64.h
index 1538844fcb51..cf3b0099674a 100644
--- a/include/linux/math64.h
+++ b/include/linux/math64.h
@@ -284,6 +284,16 @@ static inline u64 mul_u64_u32_div(u64 a, u32 mul, u32 divisor)
u64 mul_u64_u64_div_u64(u64 a, u64 mul, u64 div);
+/**
+ * DIV64_U64_ROUND_UP - unsigned 64bit divide with 64bit divisor rounded up
+ * @ll: unsigned 64bit dividend
+ * @d: unsigned 64bit divisor
+ *
+ * Divide unsigned 64bit dividend by unsigned 64bit divisor
+ * and round up.
+ *
+ * Return: dividend / divisor rounded up
+ */
#define DIV64_U64_ROUND_UP(ll, d) \
({ u64 _tmp = (d); div64_u64((ll) + _tmp - 1, _tmp); })