| Message ID | 1371543734-14148-1-git-send-email-wangyijing@huawei.com (mailing list archive) |
|---|---|
| State | New, archived |
| Delegated to: | Bjorn Helgaas |
| Headers | show |
On Tuesday, June 18, 2013 04:22:14 PM Yijing Wang wrote: > Pci pm cap register offset has been saved in pci_pm_init(), > so we can use pdev->pm_cap instead of using pci_find_capability(..) > here. > > Signed-off-by: Yijing Wang <wangyijing@huawei.com> > Cc: linux-pci@vger.kernel.org > Cc: linux-kernel@vger.kernel.org Acked-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com> > --- > drivers/pci/pci.c | 2 +- > drivers/pci/quirks.c | 6 ++---- > 2 files changed, 3 insertions(+), 5 deletions(-) > > diff --git a/drivers/pci/pci.c b/drivers/pci/pci.c > index a899d8b..1117f2c 100644 > --- a/drivers/pci/pci.c > +++ b/drivers/pci/pci.c > @@ -805,7 +805,7 @@ pci_power_t pci_choose_state(struct pci_dev *dev, pm_message_t state) > { > pci_power_t ret; > > - if (!pci_find_capability(dev, PCI_CAP_ID_PM)) > + if (!dev->pm_cap) > return PCI_D0; > > ret = platform_pci_choose_state(dev); > diff --git a/drivers/pci/quirks.c b/drivers/pci/quirks.c > index 7d68aee..422812b 100644 > --- a/drivers/pci/quirks.c > +++ b/drivers/pci/quirks.c > @@ -1832,7 +1832,6 @@ static void quirk_e100_interrupt(struct pci_dev *dev) > u16 command, pmcsr; > u8 __iomem *csr; > u8 cmd_hi; > - int pm; > > switch (dev->device) { > /* PCI IDs taken from drivers/net/e100.c */ > @@ -1870,9 +1869,8 @@ static void quirk_e100_interrupt(struct pci_dev *dev) > * Check that the device is in the D0 power state. If it's not, > * there is no point to look any further. > */ > - pm = pci_find_capability(dev, PCI_CAP_ID_PM); > - if (pm) { > - pci_read_config_word(dev, pm + PCI_PM_CTRL, &pmcsr); > + if (dev->pm_cap) { > + pci_read_config_word(dev, dev->pm_cap + PCI_PM_CTRL, &pmcsr); > if ((pmcsr & PCI_PM_CTRL_STATE_MASK) != PCI_D0) > return; > } >
On Tue, Jun 18, 2013 at 7:44 AM, Rafael J. Wysocki <rjw@sisk.pl> wrote: > On Tuesday, June 18, 2013 04:22:14 PM Yijing Wang wrote: >> Pci pm cap register offset has been saved in pci_pm_init(), >> so we can use pdev->pm_cap instead of using pci_find_capability(..) >> here. >> >> Signed-off-by: Yijing Wang <wangyijing@huawei.com> >> Cc: linux-pci@vger.kernel.org >> Cc: linux-kernel@vger.kernel.org > > Acked-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com> Applied to my pci/misc branch for v3.11, thanks! >> --- >> drivers/pci/pci.c | 2 +- >> drivers/pci/quirks.c | 6 ++---- >> 2 files changed, 3 insertions(+), 5 deletions(-) >> >> diff --git a/drivers/pci/pci.c b/drivers/pci/pci.c >> index a899d8b..1117f2c 100644 >> --- a/drivers/pci/pci.c >> +++ b/drivers/pci/pci.c >> @@ -805,7 +805,7 @@ pci_power_t pci_choose_state(struct pci_dev *dev, pm_message_t state) >> { >> pci_power_t ret; >> >> - if (!pci_find_capability(dev, PCI_CAP_ID_PM)) >> + if (!dev->pm_cap) >> return PCI_D0; >> >> ret = platform_pci_choose_state(dev); >> diff --git a/drivers/pci/quirks.c b/drivers/pci/quirks.c >> index 7d68aee..422812b 100644 >> --- a/drivers/pci/quirks.c >> +++ b/drivers/pci/quirks.c >> @@ -1832,7 +1832,6 @@ static void quirk_e100_interrupt(struct pci_dev *dev) >> u16 command, pmcsr; >> u8 __iomem *csr; >> u8 cmd_hi; >> - int pm; >> >> switch (dev->device) { >> /* PCI IDs taken from drivers/net/e100.c */ >> @@ -1870,9 +1869,8 @@ static void quirk_e100_interrupt(struct pci_dev *dev) >> * Check that the device is in the D0 power state. If it's not, >> * there is no point to look any further. >> */ >> - pm = pci_find_capability(dev, PCI_CAP_ID_PM); >> - if (pm) { >> - pci_read_config_word(dev, pm + PCI_PM_CTRL, &pmcsr); >> + if (dev->pm_cap) { >> + pci_read_config_word(dev, dev->pm_cap + PCI_PM_CTRL, &pmcsr); >> if ((pmcsr & PCI_PM_CTRL_STATE_MASK) != PCI_D0) >> return; >> } >> > -- > I speak only for myself. > Rafael J. Wysocki, Intel Open Source Technology Center. > -- > To unsubscribe from this list: send the line "unsubscribe linux-pci" in > the body of a message to majordomo@vger.kernel.org > More majordomo info at http://vger.kernel.org/majordomo-info.html -- To unsubscribe from this list: send the line "unsubscribe linux-pci" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html
diff --git a/drivers/pci/pci.c b/drivers/pci/pci.c index a899d8b..1117f2c 100644 --- a/drivers/pci/pci.c +++ b/drivers/pci/pci.c @@ -805,7 +805,7 @@ pci_power_t pci_choose_state(struct pci_dev *dev, pm_message_t state) { pci_power_t ret; - if (!pci_find_capability(dev, PCI_CAP_ID_PM)) + if (!dev->pm_cap) return PCI_D0; ret = platform_pci_choose_state(dev); diff --git a/drivers/pci/quirks.c b/drivers/pci/quirks.c index 7d68aee..422812b 100644 --- a/drivers/pci/quirks.c +++ b/drivers/pci/quirks.c @@ -1832,7 +1832,6 @@ static void quirk_e100_interrupt(struct pci_dev *dev) u16 command, pmcsr; u8 __iomem *csr; u8 cmd_hi; - int pm; switch (dev->device) { /* PCI IDs taken from drivers/net/e100.c */ @@ -1870,9 +1869,8 @@ static void quirk_e100_interrupt(struct pci_dev *dev) * Check that the device is in the D0 power state. If it's not, * there is no point to look any further. */ - pm = pci_find_capability(dev, PCI_CAP_ID_PM); - if (pm) { - pci_read_config_word(dev, pm + PCI_PM_CTRL, &pmcsr); + if (dev->pm_cap) { + pci_read_config_word(dev, dev->pm_cap + PCI_PM_CTRL, &pmcsr); if ((pmcsr & PCI_PM_CTRL_STATE_MASK) != PCI_D0) return; }
Pci pm cap register offset has been saved in pci_pm_init(), so we can use pdev->pm_cap instead of using pci_find_capability(..) here. Signed-off-by: Yijing Wang <wangyijing@huawei.com> Cc: linux-pci@vger.kernel.org Cc: linux-kernel@vger.kernel.org --- drivers/pci/pci.c | 2 +- drivers/pci/quirks.c | 6 ++---- 2 files changed, 3 insertions(+), 5 deletions(-)