SW 25 arch/ia64/kernel/entry.h #define SW(f) (IA64_SWITCH_STACK_##f##_OFFSET) SW 28 arch/parisc/include/asm/floppy.h #define SW fd_routine[use_virtual_dma&1] SW 40 arch/powerpc/kernel/align.c #define SW 0x20 /* byte swap */ SW 30 arch/x86/include/asm/floppy.h #define SW fd_routine[use_virtual_dma & 1]