linux/net
Oliver Hartkopp 3793301cba can: raw: fix CAN FD frame transmissions over CAN XL devices
A CAN XL device is always capable to process CAN FD frames. The former
check when sending CAN FD frames relied on the existence of a CAN FD
device and did not check for a CAN XL device that would be correct
too.

With this patch the CAN FD feature is enabled automatically when CAN
XL is switched on - and CAN FD cannot be switch off while CAN XL is
enabled.

This precondition also leads to a clean up and reduction of checks in
the hot path in raw_rcv() and raw_sendmsg(). Some conditions are
reordered to handle simple checks first.

changes since v1: https://lore.kernel.org/all/20230131091012.50553-1-socketcan@hartkopp.net
- fixed typo: devive -> device
changes since v2: https://lore.kernel.org/all/20230131091824.51026-1-socketcan@hartkopp.net/
- reorder checks in if statements to handle simple checks first

Fixes: 626332696d ("can: raw: add CAN XL support")
Signed-off-by: Oliver Hartkopp <socketcan@hartkopp.net>
Link: https://lore.kernel.org/all/20230131105613.55228-1-socketcan@hartkopp.net
Signed-off-by: Marc Kleine-Budde <mkl@pengutronix.de>
2023-02-02 10:33:26 +01:00
..
6lowpan
9p xen: branch for v6.2-rc4 2023-01-12 17:02:20 -06:00
802 treewide: Convert del_timer*() to timer_shutdown*() 2022-12-25 13:38:09 -08:00
8021q net: Remove the obsolte u64_stats_fetch_*_irq() users (net). 2022-10-28 20:13:54 -07:00
appletalk
atm driver core: make struct class.dev_uevent() take a const * 2022-11-24 17:12:15 +01:00
ax25 ax25: af_ax25: Remove unnecessary (void*) conversions 2022-11-16 13:31:03 +00:00
batman-adv Networking changes for 6.2. 2022-12-13 15:47:48 -08:00
bluetooth Bluetooth: Fix possible deadlock in rfcomm_sk_state_change 2023-01-17 15:59:02 -08:00
bpf New Feature: 2022-12-17 14:06:53 -06:00
bpfilter
bridge netfilter: br_netfilter: disable sabotage_in hook after first suppression 2023-01-31 13:59:36 +01:00
caif caif: fix memory leak in cfctrl_linkup_request() 2023-01-05 10:19:36 +01:00
can can: raw: fix CAN FD frame transmissions over CAN XL devices 2023-02-02 10:33:26 +01:00
ceph Treewide: Stop corrupting socket's task_frag 2022-12-19 17:28:49 -08:00
core net: fix NULL pointer in skb_segment_list 2023-01-31 21:07:04 -08:00
dcb net: dcb: move getapptrust to separate function 2022-11-15 15:27:43 +01:00
dccp Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net 2022-11-29 13:04:52 -08:00
dns_resolver cred: Do not default to init_cred in prepare_kernel_cred() 2022-11-01 10:04:52 -07:00
dsa Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net 2022-12-13 09:49:29 +01:00
ethernet net: ethernet: use sysfs_emit() to instead of scnprintf() 2022-12-07 20:02:44 -08:00
ethtool Revert "Merge branch 'ethtool-mac-merge'" 2023-01-24 17:44:14 +01:00
hsr hsr: Use a single struct for self_node. 2022-12-01 20:26:22 -08:00
ieee802154 Merge tag 'ieee802154-for-net-next-2022-12-05' of git://git.kernel.org/pub/scm/linux/kernel/git/sschmidt/wpan-next 2022-12-07 17:33:26 -08:00
ife
ipv4 bpf-for-netdev 2023-01-27 23:32:03 -08:00
ipv6 ip/ip6_gre: Fix non-point-to-point tunnel not generating IPv6 link local address 2023-02-01 19:52:22 -08:00
iucv
kcm kcm: close race conditions on sk_receive_queue 2022-11-15 12:42:26 +01:00
key Merge branch 'master' of git://git.kernel.org/pub/scm/linux/kernel/git/klassert/ipsec-next 2022-11-29 20:50:51 -08:00
l2tp l2tp: prevent lockdep issue in l2tp_tunnel_register() 2023-01-18 14:44:54 +00:00
l3mdev
lapb
llc
mac80211 Revert "wifi: mac80211: fix memory leak in ieee80211_if_add()" 2023-01-16 17:28:52 +02:00
mac802154 mac802154: Fix possible double free upon parsing error 2022-12-19 11:38:12 +01:00
mctp net: mctp: purge receive queues on sk destruction 2023-01-28 00:26:09 -08:00
mpls net: Remove the obsolte u64_stats_fetch_*_irq() users (net). 2022-10-28 20:13:54 -07:00
mptcp mptcp: netlink: respect v4/v6-only sockets 2023-01-13 21:55:45 -08:00
ncsi net/ncsi: Silence runtime memcpy() false positive warning 2022-12-06 17:29:14 -08:00
netfilter Revert "netfilter: conntrack: fix bug in for_each_sctp_chunk" 2023-01-31 14:02:48 +01:00
netlabel
netlink netlink: annotate data races around sk_state 2023-01-23 21:35:53 -08:00
netrom netrom: Fix use-after-free caused by accept on already connected socket 2023-01-30 07:30:47 +00:00
nfc net: nfc: Fix use-after-free in local_cleanup() 2023-01-13 20:53:44 -08:00
nsh
openvswitch net: openvswitch: release vport resources on failure 2022-12-21 17:48:12 -08:00
packet Networking changes for 6.2. 2022-12-13 15:47:48 -08:00
phonet
psample
qrtr net: qrtr: free memory on error path in radix_tree_insert() 2023-01-28 00:21:32 -08:00
rds rds: remove redundant variable total_payload_len 2022-11-04 10:09:50 +00:00
rfkill driver core: make struct class.dev_uevent() take a const * 2022-11-24 17:12:15 +01:00
rose net/rose: Fix to not accept on connected socket 2023-01-28 00:19:57 -08:00
rxrpc rxrpc: Fix wrong error return in rxrpc_connect_call() 2023-01-12 21:51:55 -08:00
sched net: sched: sch: Bounds check priority 2023-01-31 10:37:58 +01:00
sctp sctp: do not check hb_timer.expires when resetting hb_timer 2023-01-31 21:01:28 -08:00
smc use less confusing names for iov_iter direction initializers 2022-11-25 13:01:55 -05:00
strparser
sunrpc nfsd-6.2 fixes: 2023-01-10 15:03:06 -06:00
switchdev
tipc tipc: fix unexpected link reset due to discovery messages 2023-01-06 12:53:10 +00:00
tls net/tls: tls_is_tx_ready() checked list_entry 2023-01-30 21:06:08 -08:00
unix unix: Fix race in SOCK_SEQPACKET's unix_dgram_sendmsg() 2022-12-15 11:35:18 +01:00
vmw_vsock Networking changes for 6.2. 2022-12-13 15:47:48 -08:00
wireless Driver Core changes for 6.2-rc1 2022-12-16 03:54:54 -08:00
x25 net/x25: Fix to not accept on connected socket 2023-01-25 09:51:04 +00:00
xdp bpf: Expand map key argument of bpf_redirect_map to u64 2022-11-15 09:00:27 -08:00
xfrm Treewide: Stop corrupting socket's task_frag 2022-12-19 17:28:49 -08:00
compat.c use less confusing names for iov_iter direction initializers 2022-11-25 13:01:55 -05:00
devres.c
Kconfig
Kconfig.debug net: make NET_(DEV|NS)_REFCNT_TRACKER depend on NET 2022-09-20 14:23:56 -07:00
Makefile
socket.c Networking changes for 6.2. 2022-12-13 15:47:48 -08:00
sysctl_net.c