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Date: Fri, 28 Jun 2013 20:42:51 +0200
From: "Rafael J. Wysocki" <rjw@...k.pl>
To: Bjorn Helgaas <bhelgaas@...gle.com>
Cc: Jiang Liu <liuj97@...il.com>, Jiang Liu <jiang.liu@...wei.com>,
Yijing Wang <wangyijing@...wei.com>,
"linux-acpi@...r.kernel.org" <linux-acpi@...r.kernel.org>,
"linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
Yinghai Lu <yinghai@...nel.org>, Len Brown <lenb@...nel.org>,
"linux-pci@...r.kernel.org" <linux-pci@...r.kernel.org>
Subject: Re: [PATCH v3 10/10] ACPI: simplify acpiphp driver with new helper functions
On Friday, June 28, 2013 11:20:21 AM Bjorn Helgaas wrote:
> On Fri, Jun 28, 2013 at 10:24 AM, Jiang Liu <liuj97@...il.com> wrote:
> > From: Jiang Liu <jiang.liu@...wei.com>
> >
> > Use new helper functions to simplify acpiphp driver.
> >
> > Signed-off-by: Jiang Liu <jiang.liu@...wei.com>
>
> Acked-by: Bjorn Helgaas <bhelgaas@...gle.com>
>
> I assume this will be merged via linux-pm with the rest of the series.
Yup, into 3.12.
Thanks,
Rafael
> > Cc: Jiang Liu <liuj97@...il.com>
> > Cc: Bjorn Helgaas <bhelgaas@...gle.com>
> > Cc: Yinghai Lu <yinghai@...nel.org>
> > Cc: Len Brown <lenb@...nel.org>
> > Cc: "Rafael J. Wysocki" <rjw@...k.pl>
> > Cc: Yijing Wang <wangyijing@...wei.com>
> > Cc: linux-acpi@...r.kernel.org
> > Cc: linux-pci@...r.kernel.org
> > Cc: linux-kernel@...r.kernel.org
> > ---
> > drivers/pci/hotplug/acpiphp_glue.c | 30 ++++++++----------------------
> > 1 file changed, 8 insertions(+), 22 deletions(-)
> >
> > diff --git a/drivers/pci/hotplug/acpiphp_glue.c b/drivers/pci/hotplug/acpiphp_glue.c
> > index 59df857..a0a7133 100644
> > --- a/drivers/pci/hotplug/acpiphp_glue.c
> > +++ b/drivers/pci/hotplug/acpiphp_glue.c
> > @@ -201,7 +201,6 @@ register_slot(acpi_handle handle, u32 lvl, void *context, void **rv)
> > struct acpiphp_bridge *bridge = (struct acpiphp_bridge *)context;
> > struct acpiphp_slot *slot;
> > struct acpiphp_func *newfunc;
> > - acpi_handle tmp;
> > acpi_status status = AE_OK;
> > unsigned long long adr, sun;
> > int device, function, retval, found = 0;
> > @@ -232,19 +231,19 @@ register_slot(acpi_handle handle, u32 lvl, void *context, void **rv)
> > newfunc->handle = handle;
> > newfunc->function = function;
> >
> > - if (ACPI_SUCCESS(acpi_get_handle(handle, "_EJ0", &tmp)))
> > + if (acpi_has_method(handle, "_EJ0"))
> > newfunc->flags = FUNC_HAS_EJ0;
> >
> > - if (ACPI_SUCCESS(acpi_get_handle(handle, "_STA", &tmp)))
> > + if (acpi_has_method(handle, "_STA"))
> > newfunc->flags |= FUNC_HAS_STA;
> >
> > - if (ACPI_SUCCESS(acpi_get_handle(handle, "_PS0", &tmp)))
> > + if (acpi_has_method(handle, "_PS0"))
> > newfunc->flags |= FUNC_HAS_PS0;
> >
> > - if (ACPI_SUCCESS(acpi_get_handle(handle, "_PS3", &tmp)))
> > + if (acpi_has_method(handle, "_PS3"))
> > newfunc->flags |= FUNC_HAS_PS3;
> >
> > - if (ACPI_SUCCESS(acpi_get_handle(handle, "_DCK", &tmp)))
> > + if (acpi_has_method(handle, "_DCK"))
> > newfunc->flags |= FUNC_HAS_DCK;
> >
> > status = acpi_evaluate_integer(handle, "_SUN", NULL, &sun);
> > @@ -843,25 +842,14 @@ static unsigned int get_slot_status(struct acpiphp_slot *slot)
> > */
> > int acpiphp_eject_slot(struct acpiphp_slot *slot)
> > {
> > - acpi_status status;
> > struct acpiphp_func *func;
> > - struct acpi_object_list arg_list;
> > - union acpi_object arg;
> >
> > list_for_each_entry(func, &slot->funcs, sibling) {
> > /* We don't want to call _EJ0 on non-existing functions. */
> > if ((func->flags & FUNC_HAS_EJ0)) {
> > - /* _EJ0 method take one argument */
> > - arg_list.count = 1;
> > - arg_list.pointer = &arg;
> > - arg.type = ACPI_TYPE_INTEGER;
> > - arg.integer.value = 1;
> > -
> > - status = acpi_evaluate_object(func->handle, "_EJ0", &arg_list, NULL);
> > - if (ACPI_FAILURE(status)) {
> > - warn("%s: _EJ0 failed\n", __func__);
> > + if (ACPI_FAILURE(acpi_evaluate_ej0(func->handle)))
> > return -1;
> > - } else
> > + else
> > break;
> > }
> > }
> > @@ -1171,7 +1159,6 @@ static void handle_hotplug_event_func(acpi_handle handle, u32 type,
> > */
> > void acpiphp_enumerate_slots(struct pci_bus *bus, acpi_handle handle)
> > {
> > - acpi_handle dummy_handle;
> > struct acpiphp_bridge *bridge;
> >
> > if (acpiphp_disabled)
> > @@ -1200,8 +1187,7 @@ void acpiphp_enumerate_slots(struct pci_bus *bus, acpi_handle handle)
> > get_device(&bus->dev);
> >
> > if (!pci_is_root_bus(bridge->pci_bus) &&
> > - ACPI_SUCCESS(acpi_get_handle(bridge->handle,
> > - "_EJ0", &dummy_handle))) {
> > + acpi_has_method(bridge->handle, "_EJ0")) {
> > dbg("found ejectable p2p bridge\n");
> > bridge->flags |= BRIDGE_HAS_EJ0;
> > bridge->func = acpiphp_bridge_handle_to_function(handle);
> > --
> > 1.8.1.2
> >
--
I speak only for myself.
Rafael J. Wysocki, Intel Open Source Technology Center.
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