Shaohua Li wrote:
> There is an IA64 system here which have two pci root bridges with _OSC.
> One _OSC disables SHPC control bit but the other not. Below patch makes
> _OSC data per-device instead of one global, otherwise linux takes both
> root bridges don't support SHPC
>
> Signed-off-by: Shaohua Li <shaohua.li@xxxxxxxxx>
>
> diff --git a/drivers/pci/pci-acpi.c b/drivers/pci/pci-acpi.c
> index 72f7476..8f17064 100644
> --- a/drivers/pci/pci-acpi.c
> +++ b/drivers/pci/pci-acpi.c
> @@ -19,8 +19,29 @@
> #include <linux/pci-acpi.h>
> #include "pci.h"
>
> -static u32 ctrlset_buf[3] = {0, 0, 0};
> -static u32 global_ctrlsets = 0;
> +#define MAX_ACPI_OSC 30 /* Should be enough */
> +struct acpi_osc_data {
> + acpi_handle handle;
> + u32 ctrlset_buf[3];
> + u32 global_ctrlsets;
> +} acpi_osc_data_array[MAX_ACPI_OSC];
> +
> +struct acpi_osc_data *acpi_get_osc_data(acpi_handle handle)
> +{
One nit pick.
I think this should be static.
Thanks,
Kenji Kaneshige
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