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| author | Werner Zeh <werner.zeh@siemens.com> | 2019-03-12 07:07:50 +0100 |
|---|---|---|
| committer | Werner Zeh <werner.zeh@siemens.com> | 2019-03-14 07:47:54 +0000 |
| commit | fedb36e3c849685e2dbf1b6feb2e936a559f9bfb (patch) | |
| tree | b2a36f4626b1ea49762dd6e664995acafe8a2c41 /src/arch | |
| parent | 423adfb0d3d84bea9e862cd068a530146aacac60 (diff) | |
x86/acpi: Only sort CPU IDs if more than one available
Sorting makes only sense if there are at least two entries available.
Change-Id: If40638bf1fe24dcff4b7839967445fb4218184f8
Signed-off-by: Werner Zeh <werner.zeh@siemens.com>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/31853
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Kyösti Mälkki <kyosti.malkki@gmail.com>
Reviewed-by: Arthur Heymans <arthur@aheymans.xyz>
Diffstat (limited to 'src/arch')
| -rw-r--r-- | src/arch/x86/acpi.c | 3 |
1 files changed, 2 insertions, 1 deletions
diff --git a/src/arch/x86/acpi.c b/src/arch/x86/acpi.c index b51b5a6a89..f08a401a6e 100644 --- a/src/arch/x86/acpi.c +++ b/src/arch/x86/acpi.c @@ -163,7 +163,8 @@ unsigned long acpi_create_madt_lapics(unsigned long current) break; apic_ids[num_cpus++] = cpu->path.apic.apic_id; } - bubblesort(apic_ids, num_cpus, NUM_ASCENDING); + if (num_cpus > 1) + bubblesort(apic_ids, num_cpus, NUM_ASCENDING); for (index = 0; index < num_cpus; index++) { current += acpi_create_madt_lapic((acpi_madt_lapic_t *)current, index, apic_ids[index]); |