netdev - [TCP] IPV6 : Change a divide into a right shift in tcp_v6_send

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Date:	Fri, 21 Dec 2007 07:03:58 +0100
From:	Eric Dumazet <dada1@...mosbay.com>
To:	"David S. Miller" <davem@...emloft.net>,
	YOSHIFUJI Hideaki / 吉藤英明 <yoshfuji@...ux-ipv6.org>
CC:	Linux Netdev List <netdev@...r.kernel.org>
Subject: [TCP] IPV6 : Change a divide into a right shift in tcp_v6_send_ack()

Because tot_len is signed in tcp_v6_send_ack(), tot_len/4 forces compiler
to emit an integer divide, while we can help it to use a right shift,
less expensive.

Signed-off-by: Eric Dumazet <dada1@...mosbay.com>

View attachment "tcp_ipv6.patch" of type "text/plain" (415 bytes)