net/can/gw.c

104 		struct cgw_csum_crc8 crc8;
109 		void (*crc8)(struct canfd_frame *cf,
110 			     struct cgw_csum_crc8 *crc8);
365 			      struct cgw_csum_crc8 *crc8)
367 	int from = calc_idx(crc8->from_idx, cf->len);
368 	int to = calc_idx(crc8->to_idx, cf->len);
369 	int res = calc_idx(crc8->result_idx, cf->len);
370 	u8 crc = crc8->init_crc_val;
377 		for (i = crc8->from_idx; i <= crc8->to_idx; i++)
378 			crc = crc8->crctab[crc ^ cf->data[i]];
380 		for (i = crc8->from_idx; i >= crc8->to_idx; i--)
381 			crc = crc8->crctab[crc ^ cf->data[i]];
384 	switch (crc8->profile) {
386 		crc = crc8->crctab[crc ^ crc8->profile_data[0]];
390 		crc = crc8->crctab[crc ^ crc8->profile_data[cf->data[1] & 0xF]];
394 		crc = crc8->crctab[crc ^ (cf->can_id & 0xFF) ^
399 	cf->data[crc8->result_idx] = crc ^ crc8->final_xor_val;
403 			      struct cgw_csum_crc8 *crc8)
405 	u8 crc = crc8->init_crc_val;
408 	for (i = crc8->from_idx; i <= crc8->to_idx; i++)
409 		crc = crc8->crctab[crc ^ cf->data[i]];
411 	switch (crc8->profile) {
413 		crc = crc8->crctab[crc ^ crc8->profile_data[0]];
417 		crc = crc8->crctab[crc ^ crc8->profile_data[cf->data[1] & 0xF]];
421 		crc = crc8->crctab[crc ^ (cf->can_id & 0xFF) ^
426 	cf->data[crc8->result_idx] = crc ^ crc8->final_xor_val;
430 			      struct cgw_csum_crc8 *crc8)
432 	u8 crc = crc8->init_crc_val;
435 	for (i = crc8->from_idx; i >= crc8->to_idx; i--)
436 		crc = crc8->crctab[crc ^ cf->data[i]];
438 	switch (crc8->profile) {
440 		crc = crc8->crctab[crc ^ crc8->profile_data[0]];
444 		crc = crc8->crctab[crc ^ crc8->profile_data[cf->data[1] & 0xF]];
448 		crc = crc8->crctab[crc ^ (cf->can_id & 0xFF) ^
453 	cf->data[crc8->result_idx] = crc ^ crc8->final_xor_val;
549 		if (gwj->mod.csumfunc.crc8)
550 			(*gwj->mod.csumfunc.crc8)(cf, &gwj->mod.csum.crc8);
720 	if (gwj->mod.csumfunc.crc8) {
722 			    &gwj->mod.csum.crc8) < 0)
980 			nla_memcpy(&mod->csum.crc8, tb[CGW_CS_CRC8],
988 				mod->csumfunc.crc8 = cgw_csum_crc8_rel;
990 				mod->csumfunc.crc8 = cgw_csum_crc8_pos;
992 				mod->csumfunc.crc8 = cgw_csum_crc8_neg;