79 static bool ioam6_validate_trace_hdr(struct ioam6_trace_hdr *trace)  in ioam6_validate_trace_hdr()  argument
83 	if (!trace->type_be32 || !trace->remlen ||  in ioam6_validate_trace_hdr()
84 	    trace->remlen > IOAM6_TRACE_DATA_SIZE_MAX / 4 ||  in ioam6_validate_trace_hdr()
85 	    trace->type.bit12 | trace->type.bit13 | trace->type.bit14 |  in ioam6_validate_trace_hdr()
86 	    trace->type.bit15 | trace->type.bit16 | trace->type.bit17 |  in ioam6_validate_trace_hdr()
87 	    trace->type.bit18 | trace->type.bit19 | trace->type.bit20 |  in ioam6_validate_trace_hdr()
88 	    trace->type.bit21)  in ioam6_validate_trace_hdr()
91 	trace->nodelen = 0;  in ioam6_validate_trace_hdr()
92 	fields = be32_to_cpu(trace->type_be32);  in ioam6_validate_trace_hdr()
94 	trace->nodelen += hweight32(fields & IOAM6_MASK_SHORT_FIELDS)  in ioam6_validate_trace_hdr()
96 	trace->nodelen += hweight32(fields & IOAM6_MASK_WIDE_FIELDS)  in ioam6_validate_trace_hdr()
109 	struct ioam6_trace_hdr *trace;  in ioam6_build_state()  local
152 		NL_SET_ERR_MSG(extack, "missing trace");  in ioam6_build_state()
156 	trace = nla_data(tb[IOAM6_IPTUNNEL_TRACE]);  in ioam6_build_state()
157 	if (!ioam6_validate_trace_hdr(trace)) {  in ioam6_build_state()
159 				    "invalid trace validation");  in ioam6_build_state()
163 	len_aligned = ALIGN(trace->remlen * 4, 8);  in ioam6_build_state()
188 	tuninfo->ioamh.opt_len = sizeof(tuninfo->ioamh) - 2 + sizeof(*trace)  in ioam6_build_state()
189 					+ trace->remlen * 4;  in ioam6_build_state()
191 	memcpy(&tuninfo->traceh, trace, sizeof(*trace));  in ioam6_build_state()
193 	if (len_aligned - trace->remlen * 4) {  in ioam6_build_state()
194 		tuninfo->traceh.data[trace->remlen * 4] = IPV6_TLV_PADN;  in ioam6_build_state()
195 		tuninfo->traceh.data[trace->remlen * 4 + 1] = 2;  in ioam6_build_state()
208 	struct ioam6_trace_hdr *trace;  in ioam6_do_fill()  local
211 	trace = (struct ioam6_trace_hdr *)(skb_transport_header(skb)  in ioam6_do_fill()
215 	ns = ioam6_namespace(net, trace->namespace_id);  in ioam6_do_fill()
217 		ioam6_fill_trace_data(skb, ns, trace, false);  in ioam6_do_fill()