filter: Optimize instruction revalidation code.

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Since repeating u16 value to u8 value conversion using switch() clause's
case statement is wasteful, this patch introduces u16 to u8 mapping table
and removes most of case statements. As a result, the size of net/core/filter.o
is reduced by about 29% on x86.

Signed-off-by: Tetsuo Handa <penguin-kernel@I-love.SAKURA.ne.jp>
Acked-by: Eric Dumazet <eric.dumazet@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

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Tetsuo Handa 2010-11-16 15:19:51 +00:00 • committed by David S. Miller

parent 9e50e3ac5a

commit cba328fc5e

1 changed files with 72 additions and 159 deletions

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net/core/filter.c

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