I'm basically done with my task of porting linux to our SR71000-based board. I'm getting ready to start feeding patches to Ralf, and something occured to me.... Sometimes, in some places, we use CONFIG_ options to select the apropriate CPU. Other places, we probe for the CPU based on the PRID register. In some places, the reason for the choice is clear -- it's just much easier to select the cache library based on a CONFIG_ option in a Makefile than trying to do run-time assignment of many function pointers. However, is some places, the choice is not clear. In cpu-probe.c, for example, several of the CPU identification routines are wrapped in #ifdef's -- odd, since the wrong 'case' of the switch statements should never get executed, even if compiled in.... So, what's the rule here? When do I used #ifdef and when do I just let the PRID stuff work it's magic? I mean, heck... it might be nice to put a check to see if the detected CPU matches what the kernel was compiled for... Matt -- Matthew D. Dharm Senior Software Designer Momentum Computer Inc. 1815 Aston Ave. Suite 107 (760) 431-8663 X-115 Carlsbad, CA 92008-7310 Momentum Works For You www.momenco.com
