On Thu, May 30, 2013 at 07:08:46PM +0530, Bjørn Mork wrote:

[off-list ref] writes:

quoted

From: Narendra K <redacted>

'dev_id' sysfs attribute is initialized to zero by default.
It is also zero based. This creates ambiguity in differentiating
whether the driver set it to zero or it is the default value.
Initialize 'dev_id' to -1 to make the scenario unambiguous.

I understand your concern, but I don't think you can do this.  It
changes the userspace API, and has some very visible side effects.

Please take a look at net/ipv6/addrconf.c

Ok, thank you for pointing it. I missed it while looking for its
possible use scenarios.

With regards,
Narendra K
Linux Engineering
Dell Inc.