diff options
| author | Thomas Gleixner <tglx@linutronix.de> | 2024-09-02 11:56:59 +0200 |
|---|---|---|
| committer | Thomas Gleixner <tglx@linutronix.de> | 2024-09-02 11:56:59 +0200 |
| commit | 342123d6913c62be17e5ca1bb325758c5fd0db34 (patch) | |
| tree | 44a9a8aa6910907014bca41bc6272aa27d0e9b50 /include/linux/bitmap.h | |
| parent | 5916be8a53de6401871bdd953f6c60237b47d6d3 (diff) | |
| parent | 3d5c2f8e75a55cfb11a85086c71996af0354a1fb (diff) | |
Merge tag 'timers-v6.11-rc7' of https://git.linaro.org/people/daniel.lezcano/linux into timers/urgent
Pull clocksource driver fixes from Daniel Lezcano:
- Remove percpu irq related code in the timer-of initialization
routine as it is broken but also unused (Daniel Lezcano)
- Fix return -ETIME when delta exceeds INT_MAX and the next event not
taking effect sometimes (Jacky Bai)
Link: https://lore.kernel.org/all/d0e93dbd-b796-4726-b38c-089b685591c9@linaro.org
Diffstat (limited to 'include/linux/bitmap.h')
| -rw-r--r-- | include/linux/bitmap.h | 12 |
1 files changed, 12 insertions, 0 deletions
diff --git a/include/linux/bitmap.h b/include/linux/bitmap.h index 8c4768c44a01..d3b66d77df7a 100644 --- a/include/linux/bitmap.h +++ b/include/linux/bitmap.h @@ -270,6 +270,18 @@ static inline void bitmap_copy_clear_tail(unsigned long *dst, dst[nbits / BITS_PER_LONG] &= BITMAP_LAST_WORD_MASK(nbits); } +static inline void bitmap_copy_and_extend(unsigned long *to, + const unsigned long *from, + unsigned int count, unsigned int size) +{ + unsigned int copy = BITS_TO_LONGS(count); + + memcpy(to, from, copy * sizeof(long)); + if (count % BITS_PER_LONG) + to[copy - 1] &= BITMAP_LAST_WORD_MASK(count); + memset(to + copy, 0, bitmap_size(size) - copy * sizeof(long)); +} + /* * On 32-bit systems bitmaps are represented as u32 arrays internally. On LE64 * machines the order of hi and lo parts of numbers match the bitmap structure. |