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| author |   David S. Miller <davem@davemloft.net> | 2018-07-20 14:45:10 -0700 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2018-07-20 21:17:12 -0700 |
| commit | c4c5551df136a7c4edd7c2f433d9a296b39826a2 (patch) | |
| tree | a33d9f228efd34b0ad18e380385093405ef72d98 /drivers/acpi/pptt.c | |
| parent | tipc: make link capability update thread safe (diff) | |
| parent | Merge tag 'vfio-v4.18-rc6' of git://github.com/awilliam/linux-vfio (diff) | |
| download | linux-dev-c4c5551df136a7c4edd7c2f433d9a296b39826a2.tar.xz linux-dev-c4c5551df136a7c4edd7c2f433d9a296b39826a2.zip | |
Merge ra.kernel.org:/pub/scm/linux/kernel/git/torvalds/linux
All conflicts were trivial overlapping changes, so reasonably
easy to resolve.
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'drivers/acpi/pptt.c')
| -rw-r--r-- | drivers/acpi/pptt.c | 10 |
1 files changed, 8 insertions, 2 deletions
diff --git a/drivers/acpi/pptt.c b/drivers/acpi/pptt.c index e5ea1974d1e3..d1e26cb599bf 100644 --- a/drivers/acpi/pptt.c +++ b/drivers/acpi/pptt.c @@ -481,8 +481,14 @@ static int topology_get_acpi_cpu_tag(struct acpi_table_header *table, if (cpu_node) { cpu_node = acpi_find_processor_package_id(table, cpu_node, level, flag); - /* Only the first level has a guaranteed id */ - if (level == 0) + /* + * As per specification if the processor structure represents + * an actual processor, then ACPI processor ID must be valid. + * For processor containers ACPI_PPTT_ACPI_PROCESSOR_ID_VALID + * should be set if the UID is valid + */ + if (level == 0 || + cpu_node->flags & ACPI_PPTT_ACPI_PROCESSOR_ID_VALID) return cpu_node->acpi_processor_id; return ACPI_PTR_DIFF(cpu_node, table); } |