net: erspan: use bitfield instead of mask and offset

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Originally the erspan fields are defined as a group into a __be16 field,
and use mask and offset to access each field.  This is more costly due to
calling ntohs/htons.  The patch changes it to use bitfields.

Signed-off-by: William Tu <u9012063@gmail.com>
Acked-by: Pravin B Shelar <pshelar@ovn.org>
Signed-off-by: David S. Miller <davem@davemloft.net>

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William Tu 2018-01-25 13:20:09 -08:00 • committed by David S. Miller

parent b89d06ce58

commit c69de58ba8

3 changed files with 121 additions and 80 deletions

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127

include/net/erspan.h

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38

net/ipv4/ip_gre.c

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36

net/ipv6/ip6_gre.c

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