585 	int off, b_off;  in emit_bpf_tail_call()  local
595 	b_off = b_imm(this_idx + 1, ctx);  in emit_bpf_tail_call()
596 	emit_instr(ctx, bne, MIPS_R_AT, MIPS_R_ZERO, b_off);  in emit_bpf_tail_call()
604 	b_off = b_imm(this_idx + 1, ctx);  in emit_bpf_tail_call()
605 	emit_instr(ctx, bltz, MIPS_R_T5, b_off);  in emit_bpf_tail_call()
616 	b_off = b_imm(this_idx + 1, ctx);  in emit_bpf_tail_call()
617 	emit_instr(ctx, beq, MIPS_R_AT, MIPS_R_ZERO, b_off);  in emit_bpf_tail_call()
631 static bool is_bad_offset(int b_off)  in is_bad_offset()  argument
633 	return b_off > 0x1ffff || b_off < -0x20000;  in is_bad_offset()
640 	int src, dst, r, td, ts, mem_off, b_off;  in build_one_insn()  local
923 			b_off = b_imm(exit_idx, ctx);  in build_one_insn()
924 			if (is_bad_offset(b_off))  in build_one_insn()
926 			emit_instr(ctx, beq, MIPS_R_ZERO, MIPS_R_ZERO, b_off);  in build_one_insn()
975 				b_off = b_imm(exit_idx, ctx);  in build_one_insn()
976 				if (is_bad_offset(b_off))  in build_one_insn()
979 					emit_instr(ctx, blez, MIPS_R_AT, b_off);  in build_one_insn()
981 					emit_instr(ctx, bgtz, MIPS_R_AT, b_off);  in build_one_insn()
985 			b_off = b_imm(this_idx + insn->off + 1, ctx);  in build_one_insn()
986 			if (is_bad_offset(b_off))  in build_one_insn()
989 				emit_instr(ctx, bgtz, MIPS_R_AT, b_off);  in build_one_insn()
991 				emit_instr(ctx, blez, MIPS_R_AT, b_off);  in build_one_insn()
1026 			b_off = b_imm(exit_idx, ctx);  in build_one_insn()
1027 			if (is_bad_offset(b_off)) {  in build_one_insn()
1032 				b_off = 4 * 3;  in build_one_insn()
1040 				emit_instr(ctx, bne, dst, src, b_off);  in build_one_insn()
1042 				emit_instr(ctx, beq, dst, src, b_off);  in build_one_insn()
1050 		b_off = b_imm(this_idx + insn->off + 1, ctx);  in build_one_insn()
1051 		if (is_bad_offset(b_off)) {  in build_one_insn()
1056 			b_off = 4 * 3;  in build_one_insn()
1064 			emit_instr(ctx, beq, dst, src, b_off);  in build_one_insn()
1066 			emit_instr(ctx, bne, dst, src, b_off);  in build_one_insn()
1084 				b_off = b_imm(exit_idx, ctx);  in build_one_insn()
1085 				if (is_bad_offset(b_off))  in build_one_insn()
1089 					emit_instr(ctx, blez, dst, b_off);  in build_one_insn()
1092 					emit_instr(ctx, bltz, dst, b_off);  in build_one_insn()
1095 					emit_instr(ctx, bgez, dst, b_off);  in build_one_insn()
1098 					emit_instr(ctx, bgtz, dst, b_off);  in build_one_insn()
1104 			b_off = b_imm(this_idx + insn->off + 1, ctx);  in build_one_insn()
1105 			if (is_bad_offset(b_off))  in build_one_insn()
1109 				emit_instr(ctx, bgtz, dst, b_off);  in build_one_insn()
1112 				emit_instr(ctx, bgez, dst, b_off);  in build_one_insn()
1115 				emit_instr(ctx, bltz, dst, b_off);  in build_one_insn()
1118 				emit_instr(ctx, blez, dst, b_off);  in build_one_insn()
1182 				b_off = b_imm(exit_idx, ctx);  in build_one_insn()
1183 				if (is_bad_offset(b_off))  in build_one_insn()
1185 				emit_instr(ctx, bbit0, dst, ffs((u32)insn->imm) - 1, b_off);  in build_one_insn()
1189 			b_off = b_imm(this_idx + insn->off + 1, ctx);  in build_one_insn()
1190 			if (is_bad_offset(b_off))  in build_one_insn()
1192 			emit_instr(ctx, bbit1, dst, ffs((u32)insn->imm) - 1, b_off);  in build_one_insn()
1209 		b_off = b_imm(this_idx + insn->off + 1, ctx);  in build_one_insn()
1210 		if (is_bad_offset(b_off)) {  in build_one_insn()
1216 			emit_instr(ctx, b, b_off);  in build_one_insn()