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Message-Id: <201001200004.07654.rjw@sisk.pl>
Date: Wed, 20 Jan 2010 00:04:07 +0100
From: "Rafael J. Wysocki" <rjw@...k.pl>
To: Randy Dunlap <randy.dunlap@...cle.com>,
Jesse Barnes <jbarnes@...tuousgeek.org>
Cc: Stephen Rothwell <sfr@...b.auug.org.au>,
linux-next@...r.kernel.org, LKML <linux-kernel@...r.kernel.org>,
linux-pci@...r.kernel.org
Subject: Re: linux-next: Tree for January 18 (pci + pm)
On Tuesday 19 January 2010, Randy Dunlap wrote:
> On Mon, 18 Jan 2010 19:57:43 +1100 Stephen Rothwell wrote:
>
> > Hi all,
> >
> > Changes since 20100114:
>
>
> drivers/pci/pci-driver.c: In function 'pci_pm_runtime_resume':
> drivers/pci/pci-driver.c:991: error: implicit declaration of function 'pci_pm_default_resume_early'
> drivers/pci/pci-driver.c: At top level:
> drivers/pci/pci-driver.c:1027: error: 'pci_pm_prepare' undeclared here (not in a function)
> drivers/pci/pci-driver.c:1028: error: 'pci_pm_complete' undeclared here (not in a function)
> drivers/pci/pci-driver.c:1029: error: 'pci_pm_suspend' undeclared here (not in a function)
> drivers/pci/pci-driver.c:1030: error: 'pci_pm_resume' undeclared here (not in a function)
> drivers/pci/pci-driver.c:1031: error: 'pci_pm_freeze' undeclared here (not in a function)
> drivers/pci/pci-driver.c:1032: error: 'pci_pm_thaw' undeclared here (not in a function)
> drivers/pci/pci-driver.c:1033: error: 'pci_pm_poweroff' undeclared here (not in a function)
> drivers/pci/pci-driver.c:1034: error: 'pci_pm_restore' undeclared here (not in a function)
> drivers/pci/pci-driver.c:1035: error: 'pci_pm_suspend_noirq' undeclared here (not in a function)
> drivers/pci/pci-driver.c:1036: error: 'pci_pm_resume_noirq' undeclared here (not in a function)
> drivers/pci/pci-driver.c:1037: error: 'pci_pm_freeze_noirq' undeclared here (not in a function)
> drivers/pci/pci-driver.c:1038: error: 'pci_pm_thaw_noirq' undeclared here (not in a function)
> drivers/pci/pci-driver.c:1039: error: 'pci_pm_poweroff_noirq' undeclared here (not in a function)
> drivers/pci/pci-driver.c:1040: error: 'pci_pm_restore_noirq' undeclared here (not in a function)
>
>
> partial config:
>
> CONFIG_PM=y
> # CONFIG_PM_DEBUG is not set
> # CONFIG_SUSPEND is not set
> # CONFIG_HIBERNATION is not set
> CONFIG_PM_RUNTIME=y
> CONFIG_PM_OPS=y
>
>
> Full config is attached.
Ah, too many ifdefs.
Thanks, the patch below fixes that for me.
Rafael
---
From: Rafael J. Wysocki <rjw@...k.pl>
Subject: PCI / PM: Fix compilation for set CONFIG_PM_RUNTIME and CONFIG_PM_SLEEP unset
Fix failure to compile drivers/pci/pci-driver.c for CONFIG_PM_RUNTIME
set and CONFIG_PM_SLEEP is unset, introduced by the PCI run-time
power management patches.
Signed-off-by: Rafael J. Wysocki <rjw@...k.pl>
Reported-by: Randy Dunlap <randy.dunlap@...cle.com>
---
drivers/pci/pci-driver.c | 61 +++++++++++++++++++++++++++--------------------
1 file changed, 36 insertions(+), 25 deletions(-)
Index: linux-2.6/drivers/pci/pci-driver.c
===================================================================
--- linux-2.6.orig/drivers/pci/pci-driver.c
+++ linux-2.6/drivers/pci/pci-driver.c
@@ -405,6 +405,35 @@ static void pci_device_shutdown(struct d
pci_msix_shutdown(pci_dev);
}
+#ifdef CONFIG_PM_OPS
+
+/* Auxiliary functions used for system resume and run-time resume. */
+
+/**
+ * pci_restore_standard_config - restore standard config registers of PCI device
+ * @pci_dev: PCI device to handle
+ */
+static int pci_restore_standard_config(struct pci_dev *pci_dev)
+{
+ pci_update_current_state(pci_dev, PCI_UNKNOWN);
+
+ if (pci_dev->current_state != PCI_D0) {
+ int error = pci_set_power_state(pci_dev, PCI_D0);
+ if (error)
+ return error;
+ }
+
+ return pci_restore_state(pci_dev);
+}
+
+static void pci_pm_default_resume_early(struct pci_dev *pci_dev)
+{
+ pci_restore_standard_config(pci_dev);
+ pci_fixup_device(pci_fixup_resume_early, pci_dev);
+}
+
+#endif
+
#ifdef CONFIG_PM_SLEEP
/*
@@ -521,29 +550,6 @@ static int pci_legacy_resume(struct devi
/* Auxiliary functions used by the new power management framework */
-/**
- * pci_restore_standard_config - restore standard config registers of PCI device
- * @pci_dev: PCI device to handle
- */
-static int pci_restore_standard_config(struct pci_dev *pci_dev)
-{
- pci_update_current_state(pci_dev, PCI_UNKNOWN);
-
- if (pci_dev->current_state != PCI_D0) {
- int error = pci_set_power_state(pci_dev, PCI_D0);
- if (error)
- return error;
- }
-
- return pci_restore_state(pci_dev);
-}
-
-static void pci_pm_default_resume_early(struct pci_dev *pci_dev)
-{
- pci_restore_standard_config(pci_dev);
- pci_fixup_device(pci_fixup_resume_early, pci_dev);
-}
-
static void pci_pm_default_resume(struct pci_dev *pci_dev)
{
pci_fixup_device(pci_fixup_resume, pci_dev);
@@ -607,6 +613,13 @@ static void pci_pm_complete(struct devic
drv->pm->complete(dev);
}
+#else /* !CONFIG_PM_SLEEP */
+
+#define pci_pm_prepare NULL
+#define pci_pm_complete NULL
+
+#endif /* !CONFIG_PM_SLEEP */
+
#ifdef CONFIG_SUSPEND
static int pci_pm_suspend(struct device *dev)
@@ -943,8 +956,6 @@ static int pci_pm_restore(struct device
#endif /* !CONFIG_HIBERNATION */
-#endif /* !CONFIG_PM_SLEEP */
-
#ifdef CONFIG_PM_RUNTIME
static int pci_pm_runtime_suspend(struct device *dev)
--
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