587 	int sp_off = 0;  in get_stack_depth()  local
591 	sp_off += hweight32(ctx->flags >> SEEN_SREG_SFT) * SZREG;  in get_stack_depth()
594 		sp_off += 4 * BPF_MEMWORDS; /* BPF_MEMWORDS are 32-bit */  in get_stack_depth()
597 		sp_off += SZREG; /* Space for our ra register */  in get_stack_depth()
599 	return sp_off;  in get_stack_depth()
604 	int sp_off;  in build_prologue()  local
607 	sp_off = get_stack_depth(ctx);  in build_prologue()
608 	save_bpf_jit_regs(ctx, sp_off);  in build_prologue()
636 	unsigned int sp_off;  in build_epilogue()  local
640 	sp_off = get_stack_depth(ctx);  in build_epilogue()
641 	restore_bpf_jit_regs(ctx, sp_off);  in build_epilogue()