tree b62dd00ec3b0fde5bdc4a2b33e147fb8d236d391
parent 2b4a624d706d404a3edccb6d1bb2c440a6dbbc31
author Lennert Buytenhek <buytenh@wantstofly.org> 1221400232 +0200
committer Lennert Buytenhek <buytenh@marvell.com> 1221400408 +0200

mv643xx_eth: avoid reading ->byte_cnt twice during receive processing

Currently, the receive processing reads ->byte_cnt twice (once to
update interface statistics and once to properly size the data area
of the received skb), but since receive descriptors live in uncached
memory, caching this value in a local variable saves one uncached
access, and increases routing performance a tiny little bit more.

Signed-off-by: Lennert Buytenhek <buytenh@marvell.com>