PT_REGS_SS         66 arch/x86/um/asm/elf.h 	pr_reg[16] = PT_REGS_SS(regs);		\
PT_REGS_SS         22 arch/x86/um/sysrq_32.c                 printk(" ESP: %04lx:%08lx", 0xffff & PT_REGS_SS(regs),