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From: Stephen Hemminger <stephen@networkplumber.org>
Subject: Re: [PATCH v2 10/10] kni: add API to set link status on
 kernel interface
Date: Thu, 30 Aug 2018 15:09:11 -0700
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Cc: Igor Ryzhov <iryzhov@nfware.com>, Ferruh Yigit <ferruh.yigit@intel.com>,
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To: Dan Gora <dg@adax.com>
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On Thu, 30 Aug 2018 18:41:14 -0300
Dan Gora <dg@adax.com> wrote:

> On the other hand, the "write to /sys" method is a bit more simple and
> confines the changes to the user space library.  If we're confident
> that the /sys ABI is stable and not going to be changed going forward
> it seems like a valid alternative.

See Documentation/ABI/testing/sysfs-class-net