254 /* Helper routine to compress Traffic class and Flow label */
256  * |Version| Traffic Class |           Flow Label                  |
258  * version: 4 bits, Traffic Class: 8 bits, Flow label: 20 bits
276 	if (((ipv6->tcflow & 0x0F) == 0U) && (ipv6->flow == 0U)) {  in compress_tfl()
278 			NET_DBG("Traffic class and Flow label elided");  in compress_tfl()
280 			/* Traffic class and Flow label elided */  in compress_tfl()
283 			NET_DBG("Flow label elided");  in compress_tfl()
285 			/* Flow label elided */  in compress_tfl()
293 			NET_DBG("ECN + 2-bit Pad + Flow Label, DSCP is elided");  in compress_tfl()
295 			/* ECN + 2-bit Pad + Flow Label, DSCP is elided.*/  in compress_tfl()
298 			inline_ptr -= sizeof(ipv6->flow);  in compress_tfl()
299 			memmove(inline_ptr, &ipv6->flow, sizeof(ipv6->flow));  in compress_tfl()
304 			NET_DBG("ECN + DSCP + 4-bit Pad + Flow Label");  in compress_tfl()
306 			/* ECN + DSCP + 4-bit Pad + Flow Label */  in compress_tfl()
309 			inline_ptr -= sizeof(ipv6->flow);  in compress_tfl()
310 			memmove(inline_ptr, &ipv6->flow, sizeof(ipv6->flow));  in compress_tfl()
842 /* Helper to uncompress Traffic class and Flow label */
848 	/* Uncompress tcl and flow label */  in uncompress_tfl()
851 		NET_DBG("ECN + DSCP + 4-bit Pad + Flow Label");  in uncompress_tfl()
861 		memmove(&ipv6->flow, cursor, sizeof(ipv6->flow));  in uncompress_tfl()
862 		cursor += sizeof(ipv6->flow);  in uncompress_tfl()
865 		NET_DBG("ECN + 2-bit Pad + Flow Label, DSCP is elided");  in uncompress_tfl()
871 		memmove(&ipv6->flow, cursor, sizeof(ipv6->flow));  in uncompress_tfl()
872 		cursor += sizeof(ipv6->flow);  in uncompress_tfl()
876 		NET_DBG("Flow label elided");  in uncompress_tfl()
884 		ipv6->flow = 0U;  in uncompress_tfl()
888 		NET_DBG("Tcl and Flow label elided");  in uncompress_tfl()
891 		ipv6->flow = 0U;  in uncompress_tfl()
1430 	/* Uncompress Traffic class and Flow label */  in uncompress_IPHC_header()