From: Markos Chandras <markos.chandras@imgtec.com>
Date: Mon, 23 Jun 2014 09:38:52 +0000 (+0100)
Subject: MIPS: bpf: Use correct mask for VLAN_TAG case
X-Git-Tag: omap-for-v3.16/fixes-rc4~42^2~11
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=6e86c59d4d0d04e7ebefd05b8af245c968892f81;p=pandora-kernel.git

MIPS: bpf: Use correct mask for VLAN_TAG case

Using VLAN_VID_MASK is not correct to get the vlan tag. Use
~VLAN_PRESENT_MASK instead and make sure it's u16 so the top 16-bits
will be removed. This will ensure that the emit_andi() code will not
treat this as a big 32-bit unsigned value.

Signed-off-by: Markos Chandras <markos.chandras@imgtec.com>
Cc: David S. Miller <davem@davemloft.net>
Cc: Daniel Borkmann <dborkman@redhat.com>
Cc: Alexei Starovoitov <ast@plumgrid.com>
Cc: netdev@vger.kernel.org
Cc: linux-mips@linux-mips.org
Patchwork: https://patchwork.linux-mips.org/patch/7127/
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
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