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Revert "tests: kernel: adopt new count_bits util function"

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This reverts commit e34270519e.

Signed-off-by: Emil Gydesen <emil.gydesen@nordicsemi.no>
This commit is contained in:
Emil Gydesen 2025-03-18 12:58:10 +01:00 • committed by Benjamin Cabé
commit fadaae42f0
1 changed files with 17 additions and 1 deletions
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18
tests/kernel/common/src/bitarray.c
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@ -355,13 +355,29 @@ void alloc_and_free_predefined(void)
"sys_bitarray_alloc() failed bits comparison"); "sys_bitarray_alloc() failed bits comparison");
} }
static inline size_t count_bits(uint32_t val)
{
/* Implements Brian Kernighan’s Algorithm
* to count bits.
*/
size_t cnt = 0;
while (val != 0) {
val = val & (val - 1);
cnt++;
}
return cnt;
}
size_t get_bitarray_popcnt(sys_bitarray_t *ba) size_t get_bitarray_popcnt(sys_bitarray_t *ba)
{ {
size_t popcnt = 0; size_t popcnt = 0;
unsigned int idx; unsigned int idx;
for (idx = 0; idx < ba->num_bundles; idx++) { for (idx = 0; idx < ba->num_bundles; idx++) {
popcnt += count_bits(&ba->bundles[idx], sizeof(uint32_t)); popcnt += count_bits(ba->bundles[idx]);
} }
return popcnt; return popcnt;