REGS_SP            82 arch/c6x/kernel/asm-offsets.c 	OFFSET(REGS_SP,		pt_regs, sp);
REGS_SP           170 arch/um/kernel/process.c 			REGS_SP(p->thread.regs.regs.gp) = sp;
REGS_SP            27 arch/x86/um/shared/sysdep/ptrace.h #define UPT_SP(r) REGS_SP((r)->gp)