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pci-acpi: add flag to indicate query had been done
Current pci-acpi implementation checks osc_data->support_stat to see if control bits had been already queried. It is not good from the viewpoint of easy understanding. So this patch adds new 'is_queried' flag to indicate query had been done. Signed-off-by: Kenji Kaneshige <kaneshige.kenji@jp.fujitsu.com> Acked-by: Shaohua Li <shaohua.li@intel.com> Signed-off-by: Jesse Barnes <jbarnes@virtuousgeek.org>
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1 changed files with 3 additions and 1 deletions
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@ -23,6 +23,7 @@ struct acpi_osc_data {
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acpi_handle handle;
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u32 support_set;
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u32 control_set;
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int is_queried;
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u32 query_result;
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struct list_head sibiling;
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};
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@ -147,6 +148,7 @@ static acpi_status acpi_query_osc(acpi_handle handle,
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if (ACPI_SUCCESS(status)) {
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osc_data->support_set = support_set;
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osc_data->query_result = osc_args.query_result;
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osc_data->is_queried = 1;
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}
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return status;
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@ -203,7 +205,7 @@ acpi_status pci_osc_control_set(acpi_handle handle, u32 flags)
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if (!ctrlset)
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return AE_TYPE;
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if (osc_data->support_set &&
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if (osc_data->is_queried &&
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((osc_data->query_result & ctrlset) != ctrlset))
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return AE_SUPPORT;
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