On Wed, Jul 11, 2007 at 11:54:20PM +0900, Atsushi Nemoto wrote: > Yes, adding 'L' to KSEG1 is another way to silence the warnings. But > I just thought it was a bit intrusive. And I'm not sure all code are > OK if KSEG1 is 'signed' ... The MIPS architecture's idea of the 32 and 64-bit address space is that 32-bit addresses can be sign-extended to 64-bit addresses. This if of course conflicting with the general Linux idea that virtual addresses are represented as an unsigned long. Ralf