This is a note to let you know that I've just added the patch titled
PCI/PM: Clear state_saved during suspend
to the 3.8-stable tree which can be found at:
http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=summary
The filename of the patch is:
pci-pm-clear-state_saved-during-suspend.patch
and it can be found in the queue-3.8 subdirectory.
If you, or anyone else, feels it should not be added to the stable tree,
please let <stable@xxxxxxxxxxxxxxx> know about it.
>From khlebnikov@xxxxxxxxxx Wed May 8 15:30:56 2013
From: Konstantin Khlebnikov <khlebnikov@xxxxxxxxxx>
Date: Wed, 08 May 2013 12:10:18 +0400
Subject: PCI/PM: Clear state_saved during suspend
To: stable@xxxxxxxxxxxxxxx
Cc: Tóth Attila <atoth@xxxxxxxxxxxxx>
Message-ID: <20130508081018.25748.86347.stgit@zurg>
From: Rafael J. Wysocki <rafael.j.wysocki@xxxxxxxxx>
commit 82fee4d67ab86d6fe5eb0f9a9e988ca9d654d765 upstream.
This patch clears pci_dev->state_saved at the beginning of suspending.
PCI config state may be saved long before that. Some drivers call
pci_save_state() from the ->probe() callback to get snapshot of sane
configuration space to use in the ->slot_reset() callback.
Signed-off-by: Konstantin Khlebnikov <khlebnikov@xxxxxxxxxx> # add comment
Signed-off-by: Bjorn Helgaas <bhelgaas@xxxxxxxxxx>
Tested-by: Tóth Attila <atoth@xxxxxxxxxxxxx>
Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx>
---
drivers/pci/pci-driver.c | 4 ++++
1 file changed, 4 insertions(+)
--- a/drivers/pci/pci-driver.c
+++ b/drivers/pci/pci-driver.c
@@ -628,6 +628,7 @@ static int pci_pm_suspend(struct device
goto Fixup;
}
+ pci_dev->state_saved = false;
if (pm->suspend) {
pci_power_t prev = pci_dev->current_state;
int error;
@@ -774,6 +775,7 @@ static int pci_pm_freeze(struct device *
return 0;
}
+ pci_dev->state_saved = false;
if (pm->freeze) {
int error;
@@ -862,6 +864,7 @@ static int pci_pm_poweroff(struct device
goto Fixup;
}
+ pci_dev->state_saved = false;
if (pm->poweroff) {
int error;
@@ -987,6 +990,7 @@ static int pci_pm_runtime_suspend(struct
if (!pm || !pm->runtime_suspend)
return -ENOSYS;
+ pci_dev->state_saved = false;
pci_dev->no_d3cold = false;
error = pm->runtime_suspend(dev);
suspend_report_result(pm->runtime_suspend, error);
Patches currently in stable-queue which might be from khlebnikov@xxxxxxxxxx are
queue-3.8/pci-pm-clear-state_saved-during-suspend.patch
queue-3.8/e1000e-fix-runtime-power-management-transitions.patch
queue-3.8/e1000e-fix-accessing-to-suspended-device.patch
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