b21               127 arch/c6x/include/uapi/asm/ptrace.h 	REG_PAIR(b21, b20);
b21                38 arch/c6x/kernel/asm-offsets.c 	OFFSET(REGS_B21,	pt_regs, b21);
b21                51 arch/c6x/kernel/signal.c 	COPY(b20); COPY(b21); COPY(b22); COPY(b23);
b21               116 arch/c6x/kernel/signal.c 	COPY(b20); COPY(b21); COPY(b22); COPY(b23);
b21                55 arch/c6x/kernel/traps.c 	pr_err("A21: %08lx  B21: %08lx\n", regs->a21, regs->b21);