From: Jesse Brandeburg <jesse.brandeburg@intel.com>
Date: Wed, 20 Nov 2013 10:02:49 +0000 (+0000)
Subject: i40e: check multi-bit state correctly
X-Git-Tag: v3.14-rc1~94^2~568^2~12
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=8a4949200812b865a8c101958bdde1b7f8cdd020;p=pandora-kernel.git

i40e: check multi-bit state correctly

The hash is reported correctly in the rss field if and only if
the filter status is 3.  Other values of filter status mean
different things and we shouldn't depend on a bitwise result.

The issue was that
a & b --> returns true for b={1,2,3}
the fix is
a & b == b

Also refactor this function to use constant operations because we
are in fast path.

Change-Id: I4e29be87439c1cf8b60bc31bea29dff89596c013
Signed-off-by: Jesse Brandeburg <jesse.brandeburg@intel.com>
Tested-by: Kavindya Deegala <kavindya.s.deegala@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
---

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