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| author | Randy Dunlap <rdunlap@infradead.org> | 2017-09-17 19:07:10 -0700 |
|---|---|---|
| committer | Jonathan Corbet <corbet@lwn.net> | 2017-09-26 14:42:25 -0600 |
| commit | 404376af788a76cca760efdc05f26fd73bd94b17 (patch) | |
| tree | d4cfcd25072934281a94c608b7425e733fd9c2f4 /include/linux/bitmap.h | |
| parent | 416c7517359b8812c8bcddc31348934b901c3cdc (diff) | |
| download | lwn-404376af788a76cca760efdc05f26fd73bd94b17.tar.gz lwn-404376af788a76cca760efdc05f26fd73bd94b17.zip | |
Documentation: kernel-api: add bitmap operations from linux/bitmap.h
Add <linux/bitmap.h> to kernel-api Bitmap Operations section.
Fix kernel-doc nitpicks in <linux/bitmap.h>.
Signed-off-by: Randy Dunlap <rdunlap@infradead.org>
Acked-by: Yury Norov <ynorov@caviumnetworks.com>
Signed-off-by: Jonathan Corbet <corbet@lwn.net>
Diffstat (limited to 'include/linux/bitmap.h')
| -rw-r--r-- | include/linux/bitmap.h | 9 |
1 files changed, 5 insertions, 4 deletions
diff --git a/include/linux/bitmap.h b/include/linux/bitmap.h index 700cf5f67118..5c4178016b1e 100644 --- a/include/linux/bitmap.h +++ b/include/linux/bitmap.h @@ -360,8 +360,9 @@ static inline int bitmap_parse(const char *buf, unsigned int buflen, return __bitmap_parse(buf, buflen, 0, maskp, nmaskbits); } -/* +/** * BITMAP_FROM_U64() - Represent u64 value in the format suitable for bitmap. + * @n: u64 value * * Linux bitmaps are internally arrays of unsigned longs, i.e. 32-bit * integers in 32-bit environment, and 64-bit integers in 64-bit one. @@ -392,14 +393,14 @@ static inline int bitmap_parse(const char *buf, unsigned int buflen, ((unsigned long) ((u64)(n) >> 32)) #endif -/* +/** * bitmap_from_u64 - Check and swap words within u64. * @mask: source bitmap * @dst: destination bitmap * - * In 32-bit Big Endian kernel, when using (u32 *)(&val)[*] + * In 32-bit Big Endian kernel, when using ``(u32 *)(&val)[*]`` * to read u64 mask, we will get the wrong word. - * That is "(u32 *)(&val)[0]" gets the upper 32 bits, + * That is ``(u32 *)(&val)[0]`` gets the upper 32 bits, * but we expect the lower 32-bits of u64. */ static inline void bitmap_from_u64(unsigned long *dst, u64 mask) |