[PATCH] powerpc: remove fpscr use from [kvm_]cvt_{fd,df}

[Benjamin Herrenschmidt]

> The way the ifdefs are, it's the other way around.  4xx procs don't need
> to save/restore fpscr and others do.

Hrm, oh well, 601 manual says FPSCR is unaffected too :-)

Cheers,
Ben.