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authorEric Dumazet <eric.dumazet@gmail.com>2010-11-18 22:04:46 +0000
committerDavid S. Miller <davem@davemloft.net>2010-11-19 10:06:54 -0800
commitc26aed40f4fd18f86bcc6aba557cab700b129b73 (patch)
treee723d358ddd6facc3af4f37be02fabcf71e3e605 /net/x25
parent8c1592d68bc89248bfd0ee287648f41c1370d826 (diff)
filter: use reciprocal divide
At compile time, we can replace the DIV_K instruction (divide by a constant value) by a reciprocal divide. At exec time, the expensive divide is replaced by a multiply, a less expensive operation on most processors. Signed-off-by: Eric Dumazet <eric.dumazet@gmail.com> Acked-by: Changli Gao <xiaosuo@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
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