Daniel Borkmann 7cdec54f97 bpf: Add csum_level helper for fixing up csum levels ... Add a bpf_csum_level() helper which BPF programs can use in combination with bpf_skb_adjust_room() when they pass in BPF_F_ADJ_ROOM_NO_CSUM_RESET flag to the latter to avoid falling back to CHECKSUM_NONE. The bpf_csum_level() allows to adjust CHECKSUM_UNNECESSARY skb->csum_levels via BPF_CSUM_LEVEL_{INC,DEC} which calls __skb_{incr,decr}_checksum_unnecessary() on the skb. The helper also allows a BPF_CSUM_LEVEL_RESET which sets the skb's csum to CHECKSUM_NONE as well as a BPF_CSUM_LEVEL_QUERY to just return the current level. Without this helper, there is no way to otherwise adjust the skb->csum_level. I did not add an extra dummy flags as there is plenty of free bitspace in level argument itself iff ever needed in future. Signed-off-by: Daniel Borkmann <daniel@iogearbox.net> Signed-off-by: Alexei Starovoitov <ast@kernel.org> Reviewed-by: Alan Maguire <alan.maguire@oracle.com> Acked-by: Lorenz Bauer <lmb@cloudflare.com> Link: https://lore.kernel.org/bpf/279ae3717cb3d03c0ffeb511493c93c450a01e1a.1591108731.git.daniel@iogearbox.net		2020-06-02 11:50:23 -07:00
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6lowpan	…
9p	9pnet: allow making incomplete read requests	2020-03-27 09:29:56 +00:00
802	net: 802: psnap.c: Use built-in RCU list checking	2020-02-24 13:02:53 -08:00
8021q	netpoll: accept NULL np argument in netpoll_send_skb()	2020-05-07 18:11:07 -07:00
appletalk	ipv4,appletalk: move SIOCADDRT and SIOCDELRT handling into ->compat_ioctl	2020-05-18 17:35:02 -07:00
atm	atm: switch do_atmif_sioc() to direct use of atm_dev_ioctl()	2020-05-20 20:31:36 -04:00
ax25	Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net	2020-05-24 13:47:27 -07:00
batman-adv	This cleanup patchset includes the following patches:	2020-05-26 15:19:29 -07:00
bluetooth	Bluetooth: Acquire sk_lock.slock without disabling interrupts	2020-05-29 13:48:46 +02:00
bpf	bpf: Fix too large copy from user in bpf_test_init	2020-05-19 17:56:34 +02:00
bpfilter	SPDX patches for 5.7-rc1.	2020-04-03 13:12:26 -07:00
bridge	bridge: mrp: Add support for role MRA	2020-06-01 11:56:11 -07:00
caif	net: caif: Fix use correct return type for ndo_start_xmit()	2020-04-30 12:13:07 -07:00
can	can: j1939: j1939_sk_bind(): take priv after lock is held	2019-12-08 11:52:02 +01:00
ceph	Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net	2020-05-31 17:48:46 -07:00
core	bpf: Add csum_level helper for fixing up csum levels	2020-06-02 11:50:23 -07:00
dcb	…
dccp	ipv6: move SIOCADDRT and SIOCDELRT handling into ->compat_ioctl	2020-05-18 17:35:02 -07:00
decnet	Merge git://git.kernel.org/pub/scm/linux/kernel/git/bpf/bpf-next	2020-05-01 17:02:27 -07:00
dns_resolver	docs: networking: convert dns_resolver.txt to ReST	2020-04-28 14:39:46 -07:00
dsa	Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net	2020-05-31 17:48:46 -07:00
ethernet	net: move devres helpers into a separate source file	2020-05-23 16:56:17 -07:00
ethtool	net: ethtool: cabletest: Make ethnl_act_cable_test_tdr_cfg static	2020-05-29 17:28:30 -07:00
hsr	hsr: remove WARN_ONCE() in hsr_fill_frame_info()	2020-05-07 17:40:02 -07:00
ieee802154	ieee802154: 6lowpan: remove unnecessary comparison	2020-05-08 22:25:10 -07:00
ife	…
ipv4	net: Make locking in sock_bindtoindex optional	2020-06-01 14:57:14 -07:00
ipv6	Merge git://git.kernel.org/pub/scm/linux/kernel/git/bpf/bpf-next	2020-06-01 15:53:08 -07:00
iucv	net/af_iucv: clean up function prototypes	2020-05-19 12:50:14 -07:00
kcm	net: kcm: kcmproc.c: Fix RCU list suspicious usage warning	2020-03-16 17:14:02 -07:00
key	…
l2tp	Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net	2020-05-31 17:48:46 -07:00
l3mdev	…
lapb	docs: networking: convert lapb-module.txt to ReST	2020-04-30 12:56:35 -07:00
llc	af_llc: fix if-statement empty body warning	2020-02-26 20:38:13 -08:00
mac80211	Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net	2020-05-31 17:48:46 -07:00
mac802154	…
mpls	net: Make mpls_entry_encode() available for generic users	2020-05-29 21:20:20 -07:00
mptcp	Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net	2020-05-31 17:48:46 -07:00
ncsi	net/ncsi: Support for multi host mellanox card	2020-01-09 18:36:22 -08:00
netfilter	Merge git://git.kernel.org/pub/scm/linux/kernel/git/pablo/nf-next	2020-06-01 11:46:30 -07:00
netlabel	netlabel: cope with NULL catmap	2020-05-12 18:12:40 -07:00
netlink	bpf: Enable bpf_iter targets registering ctx argument types	2020-05-13 12:30:50 -07:00
netrom	net: partially revert dynamic lockdep key changes	2020-05-04 12:05:56 -07:00
nfc	Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net	2020-03-12 22:34:48 -07:00
nsh	…
openvswitch	net: openvswitch: use div_u64() for 64-by-32 divisions	2020-04-25 20:48:21 -07:00
packet	net/packet: tpacket_rcv: avoid a producer race condition	2020-03-15 00:25:25 -07:00
phonet	sysctl: pass kernel pointers to ->proc_handler	2020-04-27 02:07:40 -04:00
psample	net: psample: fix build error when CONFIG_INET is not enabled	2020-05-23 16:36:05 -07:00
qrtr	Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net	2020-05-31 17:48:46 -07:00
rds	tcp: add tcp_sock_set_keepcnt	2020-05-28 11:11:45 -07:00
rfkill	rfkill: Fix incorrect check to avoid NULL pointer dereference	2019-12-16 10:15:49 +01:00
rose	net: partially revert dynamic lockdep key changes	2020-05-04 12:05:56 -07:00
rxrpc	rxrpc: add rxrpc_sock_set_min_security_level	2020-05-28 11:11:46 -07:00
sched	cls_flower: remove mpls_opts_policy	2020-06-01 12:01:05 -07:00
sctp	Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net	2020-05-31 17:48:46 -07:00
smc	net/smc: pre-fetch send buffer outside of send_lock	2020-05-30 18:12:25 -07:00
strparser	…
sunrpc	ipv6: add ip6_sock_set_recvpktinfo	2020-05-28 11:11:46 -07:00
switchdev	net: switchdev: do not propagate bridge updates across bridges	2020-02-26 20:58:33 -08:00
tipc	tipc: Fix NULL pointer dereference in __tipc_sendstream()	2020-06-01 15:33:24 -07:00
tls	bpf: Fix running sk_skb program types with ktls	2020-06-01 14:48:32 -07:00
unix	net: datagram: drop 'destructor' argument from several helpers	2020-02-28 12:12:53 -08:00
vmw_vsock	virtio_vsock: Fix race condition in virtio_transport_recv_pkt	2020-05-30 17:44:01 -07:00
wimax	…
wireless	Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net	2020-05-31 17:48:46 -07:00
x25	Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net	2020-05-06 22:10:13 -07:00
xdp	Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net	2020-05-31 17:48:46 -07:00
xfrm	Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net	2020-05-31 17:48:46 -07:00
Kconfig	net: ethtool: netlink: Add support for triggering a cable test	2020-05-10 12:28:41 -07:00
Makefile	net: move devres helpers into a separate source file	2020-05-23 16:56:17 -07:00
compat.c	switch cmsghdr_from_user_compat_to_kern() to copy_from_user()	2020-06-01 12:05:45 -07:00
devres.c	net: devres: provide devm_register_netdev()	2020-05-23 16:56:17 -07:00
socket.c	net: remove kernel_setsockopt	2020-05-29 13:10:39 -07:00
sysctl_net.c	…