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tests: kernel: adopt new count_bits util function

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Adopt new count_bits helper from util.h and avoid
having conflicting definition

Signed-off-by: Benjamin Cabé <benjamin@zephyrproject.org>
This commit is contained in:
Benjamin Cabé 2025-03-18 06:46:35 +01:00 • committed by Benjamin Cabé
commit e34270519e
1 changed files with 1 additions and 17 deletions
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18
tests/kernel/common/src/bitarray.c
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@ -355,29 +355,13 @@ void alloc_and_free_predefined(void)
"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 popcnt = 0;
unsigned int idx;
for (idx = 0; idx < ba->num_bundles; idx++) {
popcnt += count_bits(ba->bundles[idx]);
popcnt += count_bits(&ba->bundles[idx], sizeof(uint32_t));
}
return popcnt;