Linux kernel mirror (for testing)
git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
kernel
os
linux
x86/topology: use bitmap_weight_from()
Switch topo_unit_count() to use bitmap_weight_from().
Signed-off-by: Yury Norov <ynorov@nvidia.com>
+2
-6
+2
-6
arch/x86/kernel/cpu/topology.c
+2
-6
arch/x86/kernel/cpu/topology.c
···
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static unsigned int topo_unit_count(u32 lvlid, enum x86_topology_domains at_level,
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unsigned long *map)
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{
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unsigned int id, end, cnt = 0;
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unsigned int end;
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/* Calculate the exclusive end */
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end = lvlid + (1U << x86_topo_system.dom_shifts[at_level]);
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/* Unfortunately there is no bitmap_weight_range() */
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for (id = find_next_bit(map, end, lvlid); id < end; id = find_next_bit(map, end, ++id))
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cnt++;
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return cnt;
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return bitmap_weight_from(map, lvlid, end);
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}
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static __init void topo_register_apic(u32 apic_id, u32 acpi_id, bool present)