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x86/topology: use bitmap_weight_from()

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Switch topo_unit_count() to use bitmap_weight_from().

Signed-off-by: Yury Norov <ynorov@nvidia.com>
This commit is contained in:
Yury Norov
2025-12-22 14:11:38 -05:00
parent bf31ddc14f
commit c6a98dff41
1 changed files with 2 additions and 6 deletions
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8
arch/x86/kernel/cpu/topology.c
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@@ -204,15 +204,11 @@ static __init bool check_for_real_bsp(u32 apic_id)
static unsigned int topo_unit_count(u32 lvlid, enum x86_topology_domains at_level,
unsigned long *map)
{
unsigned int id, end, cnt = 0;
unsigned int end;
/* Calculate the exclusive end */
end = lvlid + (1U << x86_topo_system.dom_shifts[at_level]);
/* Unfortunately there is no bitmap_weight_range() */
for (id = find_next_bit(map, end, lvlid); id < end; id = find_next_bit(map, end, ++id))
cnt++;
return cnt;
return bitmap_weight_from(map, lvlid, end);
}
static __init void topo_register_apic(u32 apic_id, u32 acpi_id, bool present)