On Fri, 2010-02-05 at 08:53 -0500, Josh Boyer wrote:
> Provide a modalias entry for VIO devices in sysfs. I believe
> this was another initrd generation bugfix for anaconda.
>
> ---
Signed-off-by: David Woodhouse <david.woodho...@intel.com>
Not entirely sure why this didn't get upstream when I first did it;
maybe I just posted it once and then forgot about it?
> diff --git a/arch/powerpc/kernel/vio.c b/arch/powerpc/kernel/vio.c
> index f988672..12a0851 100644
> --- a/arch/powerpc/kernel/vio.c
> +++ b/arch/powerpc/kernel/vio.c
> @@ -294,9 +294,27 @@ static ssize_t devspec_show(struct device *dev,
> return sprintf(buf, "%s\n", of_node ? of_node->full_name : "none");
> }
>
> +static ssize_t modalias_show(struct device *dev, struct device_attribute
> *attr,
> + char *buf)
> +{
> + const struct vio_dev *vio_dev = to_vio_dev(dev);
> + struct device_node *dn;
> + const char *cp;
> +
> + dn = dev->archdata.of_node;
> + if (!dn)
> + return -ENODEV;
> + cp = of_get_property(dn, "compatible", NULL);
> + if (!cp)
> + return -ENODEV;
> +
> + return sprintf(buf, "vio:T%sS%s\n", vio_dev->type, cp);
> +}
> +
> static struct device_attribute vio_dev_attrs[] = {
> __ATTR_RO(name),
> __ATTR_RO(devspec),
> + __ATTR_RO(modalias),
> __ATTR_NULL
> };
>
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--
David Woodhouse Open Source Technology Centre
david.woodho...@intel.com Intel Corporation
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