ppp performance degradation?

Hi,

Could anyone please explain the major changes to the ppp module from 2.4.1 to 2.4.3? I've noticed that ppp performance isn't as fast as it was using 2.4.1, and after a week using 2.4.3 i've concluded that ppp is definitely slower. I've looked at the ppp_* files but so far the only changes i saw were ppp_cleanup() being made static, and a new line added to ppp_generic.c. Perhaps the major changes are in the rest of the network code?

Adrian