tech-net archive

[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index][Old Index]

Re: Revamping optimised in_cksum/in4_cksum/in6_cksum support



On Mon, Jan 28, 2008 at 01:18:03AM +1100, Simon Burge wrote:
> At least MIPS and PowerPC will generate "pref" and "dcbt" instructions
> respectively that point to potentially invalid addresses with the code
> as it currently is.

I remember some discussion of the Power4 modifications for Linux to map
NULL for the same reason. If in doubt, we can conditionalize that
statement for platforms that don't have a save prefetch.

Joerg



Home | Main Index | Thread Index | Old Index