net: mv643xx_eth: Factorize initial checksum and command preparation
net: mv643xx_eth: Factorize initial checksum and command preparation

Make the code more readable by moving the initial checksum setup
and the command/status preparation to its own function.

Signed-off-by: Ezequiel Garcia <7248f52d8926fd82a5eb079a13afe9dd79e34c7a@free-electrons.com>
Signed-off-by: David S. Miller <fe08d3c717adf2ae63592e4c9aec6e3e404d8e3e@davemloft.net>

KristFoundation/Programs,KristFoundation/Programs,KristFoundation/Programs,KristFoundation/Programs,KristFoundation/Programs,KristFoundation/Programs