arch/powerpc/kernel/asm-offsets.c: In function `main':
arch/powerpc/kernel/asm-offsets.c:316: warning: asm operand 0 probably doesn't match constraints
arch/powerpc/kernel/asm-offsets.c:316: error: impossible constraint in `asm'
make[1]: *** [arch/powerpc/kernel/asm-offsets.s] Error 1
make: *** [prepare0] Error 2