diff options
author | David S. Miller <davem@davemloft.net> | 2017-03-23 15:11:56 -0700 |
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committer | David S. Miller <davem@davemloft.net> | 2017-03-23 16:41:27 -0700 |
commit | 16ae1f223601c44e5cb65c99257ffae003504704 (patch) | |
tree | 1f5284c0e82e4d94ca07eb022fa7911d99bb0cb6 /drivers/acpi/acpi_processor.c | |
parent | 6f359f99b8c2ff3b09329611da00fe39a7c10e7e (diff) | |
parent | d038e3dcfff6e3de132726a9c7174d8170032aa4 (diff) |
Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net
Conflicts:
drivers/net/ethernet/broadcom/genet/bcmmii.c
drivers/net/hyperv/netvsc.c
kernel/bpf/hashtab.c
Almost entirely overlapping changes.
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'drivers/acpi/acpi_processor.c')
-rw-r--r-- | drivers/acpi/acpi_processor.c | 57 |
1 files changed, 42 insertions, 15 deletions
diff --git a/drivers/acpi/acpi_processor.c b/drivers/acpi/acpi_processor.c index 4467a8089ab8..0143135b3abe 100644 --- a/drivers/acpi/acpi_processor.c +++ b/drivers/acpi/acpi_processor.c @@ -182,11 +182,6 @@ int __weak arch_register_cpu(int cpu) void __weak arch_unregister_cpu(int cpu) {} -int __weak acpi_map_cpu2node(acpi_handle handle, int cpu, int physid) -{ - return -ENODEV; -} - static int acpi_processor_hotadd_init(struct acpi_processor *pr) { unsigned long long sta; @@ -285,6 +280,13 @@ static int acpi_processor_get_info(struct acpi_device *device) pr->acpi_id = value; } + if (acpi_duplicate_processor_id(pr->acpi_id)) { + dev_err(&device->dev, + "Failed to get unique processor _UID (0x%x)\n", + pr->acpi_id); + return -ENODEV; + } + pr->phys_id = acpi_get_phys_id(pr->handle, device_declaration, pr->acpi_id); if (invalid_phys_cpuid(pr->phys_id)) @@ -585,7 +587,7 @@ static struct acpi_scan_handler processor_container_handler = { static int nr_unique_ids __initdata; /* The number of the duplicate processor IDs */ -static int nr_duplicate_ids __initdata; +static int nr_duplicate_ids; /* Used to store the unique processor IDs */ static int unique_processor_ids[] __initdata = { @@ -593,7 +595,7 @@ static int unique_processor_ids[] __initdata = { }; /* Used to store the duplicate processor IDs */ -static int duplicate_processor_ids[] __initdata = { +static int duplicate_processor_ids[] = { [0 ... NR_CPUS - 1] = -1, }; @@ -638,28 +640,53 @@ static acpi_status __init acpi_processor_ids_walk(acpi_handle handle, void **rv) { acpi_status status; + acpi_object_type acpi_type; + unsigned long long uid; union acpi_object object = { 0 }; struct acpi_buffer buffer = { sizeof(union acpi_object), &object }; - status = acpi_evaluate_object(handle, NULL, NULL, &buffer); + status = acpi_get_type(handle, &acpi_type); if (ACPI_FAILURE(status)) - acpi_handle_info(handle, "Not get the processor object\n"); - else - processor_validated_ids_update(object.processor.proc_id); + return false; + + switch (acpi_type) { + case ACPI_TYPE_PROCESSOR: + status = acpi_evaluate_object(handle, NULL, NULL, &buffer); + if (ACPI_FAILURE(status)) + goto err; + uid = object.processor.proc_id; + break; + + case ACPI_TYPE_DEVICE: + status = acpi_evaluate_integer(handle, "_UID", NULL, &uid); + if (ACPI_FAILURE(status)) + goto err; + break; + default: + goto err; + } + + processor_validated_ids_update(uid); + return true; + +err: + acpi_handle_info(handle, "Invalid processor object\n"); + return false; - return AE_OK; } -static void __init acpi_processor_check_duplicates(void) +void __init acpi_processor_check_duplicates(void) { - /* Search all processor nodes in ACPI namespace */ + /* check the correctness for all processors in ACPI namespace */ acpi_walk_namespace(ACPI_TYPE_PROCESSOR, ACPI_ROOT_OBJECT, ACPI_UINT32_MAX, acpi_processor_ids_walk, NULL, NULL, NULL); + acpi_get_devices(ACPI_PROCESSOR_DEVICE_HID, acpi_processor_ids_walk, + NULL, NULL); } -bool __init acpi_processor_validate_proc_id(int proc_id) +bool acpi_duplicate_processor_id(int proc_id) { int i; |