Re: [PATCH 3/4] Provide VIO modalias
From: David Woodhouse <dwmw2@infradead.org>
Date: 2010-02-23 12:50:05
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 <redacted> 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?
quoted hunk ↗ jump to hunk
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 };_______________________________________________ Linuxppc-dev mailing list Linuxppc-dev@lists.ozlabs.org https://lists.ozlabs.org/listinfo/linuxppc-dev
-- David Woodhouse Open Source Technology Centre David.Woodhouse@intel.com Intel Corporation