iv/linux
1
0
Fork 0
Code Issues Pull Requests Actions Packages Projects Releases Wiki Activity

PCI/PM/Runtime: make PCI traces quieter

Browse Source 
When the runtime PM is activated on PCI, if a device switches state
frequently (e.g. an EHCI controller with autosuspending USB devices
connected) the PCI configuration traces might be very verbose in the
kernel log.  Let's guard those traces with DEBUG condition.

Acked-by: "Rafael J. Wysocki" <rjw@sisk.pl>
Signed-off-by: Vincent Palatin <vpalatin@chromium.org>
Signed-off-by: Jesse Barnes <jbarnes@virtuousgeek.org>
This commit is contained in:
Vincent Palatin 2011-12-05 11:51:18 -08:00 committed by Jesse Barnes
parent 118faafaf9
commit 85b8582d7c
3 changed files with 10 additions and 11 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

4
drivers/acpi/pci_irq.c
View File

@ -487,7 +487,7 @@ int acpi_pci_irq_enable(struct pci_dev *dev)
else
link_desc[0] = '\0';
dev_info(&dev->dev, "PCI INT %c%s -> GSI %u (%s, %s) -> IRQ %d\n",
dev_dbg(&dev->dev, "PCI INT %c%s -> GSI %u (%s, %s) -> IRQ %d\n",
pin_name(pin), link_desc, gsi,
(triggering == ACPI_LEVEL_SENSITIVE) ? "level" : "edge",
(polarity == ACPI_ACTIVE_LOW) ? "low" : "high", dev->irq);
@ -524,6 +524,6 @@ void acpi_pci_irq_disable(struct pci_dev *dev)
* (e.g. PCI_UNDEFINED_IRQ).
*/
dev_info(&dev->dev, "PCI INT %c disabled\n", pin_name(pin));
dev_dbg(&dev->dev, "PCI INT %c disabled\n", pin_name(pin));
acpi_unregister_gsi(gsi);
}

5
drivers/pci/pci.c
View File

@ -973,7 +973,7 @@ void pci_restore_state(struct pci_dev *dev)
for (i = 15; i >= 0; i--) {
pci_read_config_dword(dev, i * 4, &val);
if (val != dev->saved_config_space[i]) {
dev_printk(KERN_DEBUG, &dev->dev, "restoring config "
dev_dbg(&dev->dev, "restoring config "
"space at offset %#x (was %#x, writing %#x)\n",
i, val, (int)dev->saved_config_space[i]);
pci_write_config_dword(dev,i * 4,
@ -1542,8 +1542,7 @@ void pci_pme_active(struct pci_dev *dev, bool enable)
}
out:
dev_printk(KERN_DEBUG, &dev->dev, "PME# %s\n",
enable ? "enabled" : "disabled");
dev_dbg(&dev->dev, "PME# %s\n", enable ? "enabled" : "disabled");
}
/**

2
drivers/pci/setup-res.c
View File

@ -85,7 +85,7 @@ void pci_update_resource(struct pci_dev *dev, int resno)
}
}
res->flags &= ~IORESOURCE_UNSET;
dev_info(&dev->dev, "BAR %d: set to %pR (PCI address [%#llx-%#llx])\n",
dev_dbg(&dev->dev, "BAR %d: set to %pR (PCI address [%#llx-%#llx])\n",
resno, res, (unsigned long long)region.start,
(unsigned long long)region.end);
}