214 	u8 crc4;  in drm_dp_encode_sideband_msg_hdr()  local
222 	crc4 = drm_dp_msg_header_crc4(buf, (idx * 2) - 1);  in drm_dp_encode_sideband_msg_hdr()
223 	buf[idx - 1] |= (crc4 & 0xf);  in drm_dp_encode_sideband_msg_hdr()
231 	u8 crc4;  in drm_dp_decode_sideband_msg_hdr()  local
241 	crc4 = drm_dp_msg_header_crc4(buf, (len * 2) - 1);  in drm_dp_decode_sideband_msg_hdr()
243 	if ((crc4 & 0xf) != (buf[len - 1] & 0xf)) {  in drm_dp_decode_sideband_msg_hdr()
244 		DRM_DEBUG_KMS("crc4 mismatch 0x%x 0x%x\n", crc4, buf[len - 1]);  in drm_dp_decode_sideband_msg_hdr()
374 	u8 crc4;  in drm_dp_crc_sideband_chunk_req()  local
375 	crc4 = drm_dp_msg_data_crc4(msg, len);  in drm_dp_crc_sideband_chunk_req()
376 	msg[len] = crc4;  in drm_dp_crc_sideband_chunk_req()
395 	u8 crc4;  in drm_dp_sideband_msg_build()  local
438 		crc4 = drm_dp_msg_data_crc4(msg->chunk, msg->curchunk_len - 1);  in drm_dp_sideband_msg_build()