Re: [PATCH 01/15] Drivers: hv: Format GUIDS as per MSFT standards

From: Joe Perches
Date: Tue Jul 17 2012 - 12:19:22 EST


On Tue, 2012-07-17 at 09:04 -0700, Greg KH wrote:
> On Sat, Jul 14, 2012 at 01:34:06PM -0700, K. Y. Srinivasan wrote:
> > Format GUIDS as per MSFT standard. This makes interacting with MSFT
> > tool stack easier.
[]
> > diff --git a/drivers/hv/vmbus_drv.c b/drivers/hv/vmbus_drv.c
[]
> > @@ -147,7 +147,7 @@ static ssize_t vmbus_show_device_attr(struct device *dev,
> >
> > if (!strcmp(dev_attr->attr.name, "class_id")) {
> > ret = sprintf(buf, "{%02x%02x%02x%02x-%02x%02x-%02x%02x-"
> > - "%02x%02x%02x%02x%02x%02x%02x%02x}\n",
> > + "%02x%02x-%02x%02x%02x%02x%02x%02x}\n",
>
> As Joe pointed out, please just use the printk modifier the kernel
> already has for GUIDS, and don't roll your own here. That will work
> properly for you, right?

%pU became available in 2.6.33

I think one of their support targets is RHEL6 which
I believe is 2.6.32+.


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