Hi, > This is the patch to evaluate CPU_HAS_FEATURE() at compile time whenever > possible. Testing showed that vmlinux shrinks around 4000 bytes with > g5_defconfig. I also checked that pSeries code is completely unaltered > semantically when support for all CPU types is enabled, although a few > instructions are emitted in a different order by gcc. > > I have made cpu_has_feature() an inline function that expects the full > name of a feature bit while the CPU_HAS_FEATURE() macro still behaves > the same way as in Olofs original patch for now.
Interesting :) However we already get bug reports with the current CONFIG_POWER4_ONLY option. I worry about adding more options that users could get wrong unless there is a noticeable improvement in performance. Anton - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to [EMAIL PROTECTED] More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/