linux-kernel - [PATCH 3/3] PCI PM: Make warning in pci_legacy

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Date:	Sun, 1 Feb 2009 22:34:24 +0100
From:	"Rafael J. Wysocki" <rjw@...k.pl>
To:	Jesse Barnes <jbarnes@...tuousgeek.org>
Cc:	Linus Torvalds <torvalds@...ux-foundation.org>,
	Linux PCI <linux-pci@...r.kernel.org>,
	pm list <linux-pm@...ts.linux-foundation.org>,
	LKML <linux-kernel@...r.kernel.org>
Subject: [PATCH 3/3] PCI PM: Make warning in pci_legacy_suspend more useful

From: Rafael J. Wysocki <rjw@...k.pl>

The warning in pci_legacy_suspend() would be much more useful if it
printed the name of the function that did the wrong thing.  Make it
do so.

Signed-off-by: Rafael J. Wysocki <rjw@...k.pl>
---
 drivers/pci/pci-driver.c |    4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

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
@@ -365,7 +365,9 @@ static int pci_legacy_suspend(struct dev
 		if (pci_dev->state_saved)
 			goto Fixup;
 
-		if (WARN_ON_ONCE(pci_dev->current_state != PCI_D0))
+		if (WARN_ONCE(pci_dev->current_state != PCI_D0,
+				"PCI PM: Device state not saved by %pF\n",
+				drv->suspend))
 			goto Fixup;
 	}
 

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