| Message ID | 20130614224949.GA29105@google.com (mailing list archive) |
|---|---|
| State | New, archived |
| Delegated to: | Bjorn Helgaas |
| Headers | show |
On Friday, June 14, 2013 04:49:49 PM Bjorn Helgaas wrote: > On Sat, Jun 15, 2013 at 12:28:12AM +0200, Rafael J. Wysocki wrote: > > On Friday, June 14, 2013 11:08:44 AM Bjorn Helgaas wrote: > > > On Thu, Jun 13, 2013 at 4:29 PM, Rafael J. Wysocki <rjw@sisk.pl> wrote: > > > > From: Rafael J. Wysocki <rafael.j.wysocki@intel.com> > > > > > > > > Make acpi_pci_set_power_state() print the name of the ACPI device > > > > power state the device has been actually put into instead of printing > > > > the name of the requested PCI device power state, which need not be > > > > the same. > > > > > > > > Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com> > > > > --- > > > > > > > > For 3.11. > > > > > > > > Thanks, > > > > Rafael > > > > > > > > --- > > > > drivers/pci/pci-acpi.c | 2 +- > > > > 1 file changed, 1 insertion(+), 1 deletion(-) > > > > > > > > Index: linux-pm/drivers/pci/pci-acpi.c > > > > =================================================================== > > > > --- linux-pm.orig/drivers/pci/pci-acpi.c > > > > +++ linux-pm/drivers/pci/pci-acpi.c > > > > @@ -211,7 +211,7 @@ static int acpi_pci_set_power_state(stru > > > > > > > > if (!error) > > > > dev_info(&dev->dev, "power state changed by ACPI to %s\n", > > > > - pci_power_name(state)); > > > > + acpi_power_state_string(state_conv[state])); > > > > > > > > return error; > > > > } > > > > > > > > > > Just to double-check this, it *looks* like the effective change is > > > that for PCI_D3hot and PCI_D3cold, we'll print "(unknown)" instead of > > > "D3hot" and "D3cold" because state_conv[] folds both PCI_D3hot and > > > PCI_D3cold into ACPI_STATE_D3, and acpi_power_state_string() doesn't > > > have a case for ACPI_STATE_D3. > > > > No, it won't work like this, because ACPI_STATE_D3 == ACPI_STATE_D3_COLD. :-) > > > > So, actually, "D3cold" will be printed for both PCI_D3hot and PCI_D3cold > > (and I have tested this). > > Ah, right, I should have noticed that. > > > Well, I think it's better to actually replace ACPI_STATE_D3 everywhere in > > pci-acpi.c with ACPI_STATE_D3_COLD to avoid that confusion. Do you want me > > to prepare a patch? > > If the following is OK, I'll just put it in my pci/misc branch: Yes, it is, thanks! Rafael > commit fc6504b3a4dc9beae782a11e6f7c3c4a9f077fb8 > Author: Rafael J. Wysocki <rafael.j.wysocki@intel.com> > Date: Fri Jun 14 00:29:50 2013 +0200 > > PCI / ACPI / PM: Use correct power state strings in messages > > Make acpi_pci_set_power_state() print the name of the ACPI device > power state the device has been actually put into instead of printing > the name of the requested PCI device power state, which need not be > the same. > > [bhelgaas: use ACPI_STATE_D3_COLD (ACPI_STATE_D3 == ACPI_STATE_D3_COLD)] > Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com> > Signed-off-by: Bjorn Helgaas <bhelgaas@google.com> > > diff --git a/drivers/pci/pci-acpi.c b/drivers/pci/pci-acpi.c > index 6c15d6a..dbdc5f7 100644 > --- a/drivers/pci/pci-acpi.c > +++ b/drivers/pci/pci-acpi.c > @@ -186,8 +186,8 @@ static int acpi_pci_set_power_state(struct pci_dev *dev, pci_power_t state) > [PCI_D0] = ACPI_STATE_D0, > [PCI_D1] = ACPI_STATE_D1, > [PCI_D2] = ACPI_STATE_D2, > - [PCI_D3hot] = ACPI_STATE_D3, > - [PCI_D3cold] = ACPI_STATE_D3 > + [PCI_D3hot] = ACPI_STATE_D3_COLD, > + [PCI_D3cold] = ACPI_STATE_D3_COLD, > }; > int error = -EINVAL; > > @@ -211,7 +211,7 @@ static int acpi_pci_set_power_state(struct pci_dev *dev, pci_power_t state) > > if (!error) > dev_info(&dev->dev, "power state changed by ACPI to %s\n", > - pci_power_name(state)); > + acpi_power_state_string(state_conv[state])); > > return error; > }
diff --git a/drivers/pci/pci-acpi.c b/drivers/pci/pci-acpi.c index 6c15d6a..dbdc5f7 100644 --- a/drivers/pci/pci-acpi.c +++ b/drivers/pci/pci-acpi.c @@ -186,8 +186,8 @@ static int acpi_pci_set_power_state(struct pci_dev *dev, pci_power_t state) [PCI_D0] = ACPI_STATE_D0, [PCI_D1] = ACPI_STATE_D1, [PCI_D2] = ACPI_STATE_D2, - [PCI_D3hot] = ACPI_STATE_D3, - [PCI_D3cold] = ACPI_STATE_D3 + [PCI_D3hot] = ACPI_STATE_D3_COLD, + [PCI_D3cold] = ACPI_STATE_D3_COLD, }; int error = -EINVAL; @@ -211,7 +211,7 @@ static int acpi_pci_set_power_state(struct pci_dev *dev, pci_power_t state) if (!error) dev_info(&dev->dev, "power state changed by ACPI to %s\n", - pci_power_name(state)); + acpi_power_state_string(state_conv[state])); return error; }