WARNING: line length of 86 exceeds 80 columns
#79: FILE: drivers/net/can/kvaser_pciefd.c:763:
+	return can->tx_max_count - (READ_ONCE(can->tx_idx) - READ_ONCE(can->ack_idx));

WARNING: line length of 90 exceeds 80 columns
#102: FILE: drivers/net/can/kvaser_pciefd.c:797:
+				   can_get_cc_dlc((struct can_frame *)cf, can->ctrlmode));

WARNING: line length of 85 exceeds 80 columns
#119: FILE: drivers/net/can/kvaser_pciefd.c:819:
+	if (!netif_subqueue_maybe_stop(netdev, 0, kvaser_pciefd_tx_avail(can), 1, 1))

WARNING: line length of 81 exceeds 80 columns
#123: FILE: drivers/net/can/kvaser_pciefd.c:822:
+	nr_words = kvaser_pciefd_prepare_tx_packet(&packet, &can->can, seq, skb);

WARNING: line length of 95 exceeds 80 columns
#168: FILE: drivers/net/can/kvaser_pciefd.c:995:
+		can->tx_max_count = min(KVASER_PCIEFD_CAN_TX_MAX_COUNT, tx_nr_packets_max - 1);

WARNING: The commit message has 'stable@', perhaps it also needs a 'Fixes:' tag?

total: 0 errors, 6 warnings, 0 checks, 192 lines checked

NOTE: For some of the reported defects, checkpatch may be able to
      mechanically convert to the typical style using --fix or --fix-inplace.

Commit 5d0ec5af1115 ("can: kvaser_pciefd: Fix echo_skb race") has style problems, please review.

NOTE: Ignored message types: ALLOC_SIZEOF_STRUCT BAD_REPORTED_BY_LINK CAMELCASE COMMIT_LOG_LONG_LINE GIT_COMMIT_ID MACRO_ARG_REUSE NO_AUTHOR_SIGN_OFF

NOTE: If any of the errors are false positives, please report
      them to the maintainer, see CHECKPATCH in MAINTAINERS.
total: 0 errors, 6 warnings, 0 checks, 192 lines checked