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| author | Randy Dunlap <rdunlap@infradead.org> | 2017-09-30 18:43:42 +0300 |
|---|---|---|
| committer | Jonathan Corbet <corbet@lwn.net> | 2017-10-07 19:45:07 +0300 |
| commit | 6ec72e61cb09482fe08524480f7f3f18a6d23cfa (patch) | |
| tree | abe54b457928c6e3bd4b7a42eb30ff71baeb7fbb /include/asm-generic/div64.h | |
| parent | a1c4d24e02d093efd84cbde417051d2e767fa8fa (diff) | |
| download | linux-6ec72e61cb09482fe08524480f7f3f18a6d23cfa.tar.xz | |
div64: add missing kernel-doc
Add missing kernel-doc notation for 2 div() functions.
Signed-off-by: Randy Dunlap <rdunlap@infradead.org>
Signed-off-by: Jonathan Corbet <corbet@lwn.net>
Diffstat (limited to 'include/asm-generic/div64.h')
| -rw-r--r-- | include/asm-generic/div64.h | 14 |
1 files changed, 14 insertions, 0 deletions
diff --git a/include/asm-generic/div64.h b/include/asm-generic/div64.h index 163f77999ea4..3de84f64423f 100644 --- a/include/asm-generic/div64.h +++ b/include/asm-generic/div64.h @@ -25,6 +25,20 @@ #if BITS_PER_LONG == 64 +/** + * do_div - returns 2 values: calculate remainder and update new dividend + * @n: pointer to uint64_t dividend (will be updated) + * @base: uint32_t divisor + * + * Summary: + * ``uint32_t remainder = *n % base;`` + * ``*n = *n / base;`` + * + * Return: (uint32_t)remainder + * + * NOTE: macro parameter @n is evaluated multiple times, + * beware of side effects! + */ # define do_div(n,base) ({ \ uint32_t __base = (base); \ uint32_t __rem; \ |