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author | Dmitry Torokhov <dmitry.torokhov@gmail.com> | 2020-01-11 01:56:04 +0300 |
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committer | Dmitry Torokhov <dmitry.torokhov@gmail.com> | 2020-01-11 01:56:04 +0300 |
commit | 1bdd3e05a0a3b4a97ea88bc46fef8fb265c8b94c (patch) | |
tree | 2244894a9ea0c941a8f32e5f3d196b4ea0eae24b /include/linux/bitops.h | |
parent | 643dd7416649bea2e8c61d8fdeeefb409a0ca5eb (diff) | |
parent | c79f46a282390e0f5b306007bf7b11a46d529538 (diff) | |
download | linux-1bdd3e05a0a3b4a97ea88bc46fef8fb265c8b94c.tar.xz |
Merge tag 'v5.5-rc5' into next
Sync up with mainline to get SPI "delay" API changes.
Diffstat (limited to 'include/linux/bitops.h')
-rw-r--r-- | include/linux/bitops.h | 12 |
1 files changed, 12 insertions, 0 deletions
diff --git a/include/linux/bitops.h b/include/linux/bitops.h index c94a9ff9f082..e479067c202c 100644 --- a/include/linux/bitops.h +++ b/include/linux/bitops.h @@ -47,6 +47,18 @@ extern unsigned long __sw_hweight64(__u64 w); (bit) < (size); \ (bit) = find_next_zero_bit((addr), (size), (bit) + 1)) +/** + * for_each_set_clump8 - iterate over bitmap for each 8-bit clump with set bits + * @start: bit offset to start search and to store the current iteration offset + * @clump: location to store copy of current 8-bit clump + * @bits: bitmap address to base the search on + * @size: bitmap size in number of bits + */ +#define for_each_set_clump8(start, clump, bits, size) \ + for ((start) = find_first_clump8(&(clump), (bits), (size)); \ + (start) < (size); \ + (start) = find_next_clump8(&(clump), (bits), (size), (start) + 8)) + static inline int get_bitmask_order(unsigned int count) { int order; |