Messages in this thread | | | Date | Mon, 6 Jan 2014 11:01:45 +0000 | From | Lee Jones <> | Subject | Re: [PATCH 1/3] mfd: sta2x11-mfd: use named constants for pci_power_t values |
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On Fri, 03 Jan 2014, Julia Lawall wrote:
> From: Julia Lawall <Julia.Lawall@lip6.fr> > > The semantic patch that makes this change is as follows: > (http://coccinelle.lip6.fr/) > > // <smpl> > @@ > expression pdev; > @@ > > pci_set_power_state(pdev, > - 0 > + PCI_D0 > ) > // </smpl>
I'm happy with the code and that you used Coccinelle to discover the issue, but I feel a little more explanation would be helpful to readers.
Why is (pci_power_t __force) 0 better than 0?
> Signed-off-by: Julia Lawall <Julia.Lawall@lip6.fr> > > --- > drivers/mfd/sta2x11-mfd.c | 2 +- > 1 file changed, 1 insertion(+), 1 deletion(-) > > diff --git a/drivers/mfd/sta2x11-mfd.c b/drivers/mfd/sta2x11-mfd.c > index 0d42e40..5b72db0 100644 > --- a/drivers/mfd/sta2x11-mfd.c > +++ b/drivers/mfd/sta2x11-mfd.c > @@ -529,7 +529,7 @@ static int sta2x11_mfd_resume(struct pci_dev *pdev) > { > int err; > > - pci_set_power_state(pdev, 0); > + pci_set_power_state(pdev, PCI_D0); > err = pci_enable_device(pdev); > if (err) > return err; >
-- Lee Jones Linaro STMicroelectronics Landing Team Lead Linaro.org │ Open source software for ARM SoCs Follow Linaro: Facebook | Twitter | Blog -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
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