[PATCH 0/5] IP checksum improvements

[Joakim Tjernlund]

Here are a series of performance improvements on the
Internet checksum. With these changes applied I get about
20-30% better performance on x86 and PowerPC.

Even though we got off on the wrong foot I got curious
enough to do some more investigation and I leared
more about "add with carry" and how gcc handle them.
Feel free to ignore these patches, I just wanted to at
least document my findings in patch form.

Joakim Tjernlund (5):
  checksum: improve add32
  checksum: Optimize add32() for PowerPC
  checksum: use pre increment.
  checksum: optimize loop and get rid of add16()
  checksum: Optimize first addition.

 lib/checksum.c |   61 ++++++++++++++++++++++++++++++++-----------------------
 1 files changed, 35 insertions(+), 26 deletions(-)