Re: [PATH] pci_has_legacy_pm_support add driver and device to WARN

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On Sunday, November 20, 2011, David Fries wrote:
> From: David Fries <David@xxxxxxxxx>
> 
> Include the driver name and device in warning when a pci driver
> supports both legacy pm and new framework as just the stack trace
> gives no way to identify the driver.
> 
> Signed-off-by: David Fries <David@xxxxxxxxx>

Acked-by: Rafael J. Wysocki <rjw@xxxxxxx>

> Cc: Jesse Barnes <jbarnes@xxxxxxxxxxxxxxxx>
> Cc: linux-pci@xxxxxxxxxxxxxxx
> ---
>  drivers/pci/pci-driver.c |    3 ++-
>  1 files changed, 2 insertions(+), 1 deletions(-)
> 
> diff --git a/drivers/pci/pci-driver.c b/drivers/pci/pci-driver.c
> index 12d1e81..3623d65 100644
> --- a/drivers/pci/pci-driver.c
> +++ b/drivers/pci/pci-driver.c
> @@ -604,7 +604,8 @@ static bool pci_has_legacy_pm_support(struct pci_dev *pci_dev)
>  	 * supported as well.  Drivers are supposed to support either the
>  	 * former, or the latter, but not both at the same time.
>  	 */
> -	WARN_ON(ret && drv->driver.pm);
> +	WARN(ret && drv->driver.pm, "driver %s device %04x:%04x\n",
> +		drv->name, pci_dev->vendor, pci_dev->device);
>  
>  	return ret;
>  }
> 

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