Toke Høiland-Jørgensen 49589b23d5 intel: Remove rcu_read_lock() around XDP program invocation ... The Intel drivers all have rcu_read_lock()/rcu_read_unlock() pairs around XDP program invocations. However, the actual lifetime of the objects referred by the XDP program invocation is longer, all the way through to the call to xdp_do_flush(), making the scope of the rcu_read_lock() too small. This turns out to be harmless because it all happens in a single NAPI poll cycle (and thus under local_bh_disable()), but it makes the rcu_read_lock() misleading. Rather than extend the scope of the rcu_read_lock(), just get rid of it entirely. With the addition of RCU annotations to the XDP_REDIRECT map types that take bh execution into account, lockdep even understands this to be safe, so there's really no reason to keep it around. Signed-off-by: Toke Høiland-Jørgensen <toke@redhat.com> Signed-off-by: Daniel Borkmann <daniel@iogearbox.net> Tested-by: Jesper Dangaard Brouer <brouer@redhat.com> # i40e Cc: Jesse Brandeburg <jesse.brandeburg@intel.com> Cc: Tony Nguyen <anthony.l.nguyen@intel.com> Cc: intel-wired-lan@lists.osuosl.org Link: https://lore.kernel.org/bpf/20210624160609.292325-12-toke@redhat.com		2021-06-24 19:44:34 +02:00
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3com	net: 3com: remove leading spaces before tabs	2021-05-19 12:17:30 -07:00
8390	net: 8390: remove leading spaces before tabs	2021-05-19 12:17:31 -07:00
actions
adaptec
aeroflex
agere
alacritech
allwinner
alteon	net: alteon: remove leading spaces before tabs	2021-05-19 12:17:30 -07:00
altera
amazon	ena: Remove rcu_read_lock() around XDP program invocation	2021-06-24 19:43:28 +02:00
amd	net: amd: remove leading spaces before tabs	2021-05-19 12:17:30 -07:00
apm
apple	net: apple: remove leading spaces before tabs	2021-05-19 12:17:30 -07:00
aquantia
arc
atheros	atl1c: add 4 RX/TX queue support for Mikrotik 10/25G NIC	2021-05-27 16:06:46 -07:00
broadcom	bnxt: Remove rcu_read_lock() around XDP program invocation	2021-06-24 19:43:49 +02:00
brocade
cadence	net: macb: Use devm_platform_get_and_ioremap_resource()	2021-06-07 14:07:22 -07:00
calxeda
cavium	thunderx: Remove rcu_read_lock() around XDP program invocation	2021-06-24 19:44:02 +02:00
chelsio	net: chelsio: cxgb4: use eth_zero_addr() to assign zero address	2021-06-16 00:53:17 -07:00
cirrus
cisco
cortina	net: gemini: Use devm_platform_get_and_ioremap_resource()	2021-06-07 13:20:00 -07:00
davicom
dec	net: tulip: Remove the repeated declaration	2021-06-07 14:03:11 -07:00
dlink	net: dlink: remove leading spaces before tabs	2021-05-19 12:17:31 -07:00
emulex
ezchip
faraday	net: ftgmac100: add missing error return code in ftgmac100_probe()	2021-05-23 16:16:24 -07:00
freescale	freescale: Remove rcu_read_lock() around XDP program invocation	2021-06-24 19:44:17 +02:00
fujitsu	Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net	2021-05-27 09:55:10 -07:00
google
hisilicon	net: hns3: use bounce buffer when rx page can not be reused	2021-06-16 00:36:06 -07:00
huawei
i825xx
ibm	ibmvnic: fix send_request_map incompatible argument	2021-06-14 12:56:50 -07:00
intel	intel: Remove rcu_read_lock() around XDP program invocation	2021-06-24 19:44:34 +02:00
marvell	net: marvell: prestera: Add matchall support	2021-06-16 12:58:27 -07:00
mediatek	net: ethernet: mtk_eth_soc: Fix packet statistics support for MT7628/88	2021-05-23 16:13:11 -07:00
mellanox	mlxsw: spectrum_router: remove redundant continue statement	2021-06-16 12:46:21 -07:00
micrel	net: phy: micrel: move phy reg offsets to common header	2021-06-14 12:54:43 -07:00
microchip	net: encx24j600: fix kernel-doc syntax in file headers	2021-05-20 15:25:38 -07:00
microsoft
moxa	net: moxa: Use devm_platform_get_and_ioremap_resource()	2021-06-07 14:08:30 -07:00
mscc
myricom	ethernet: myri10ge: Fix missing error code in myri10ge_probe()	2021-06-01 15:54:38 -07:00
natsemi	net: natsemi: remove leading spaces before tabs	2021-05-19 12:17:31 -07:00
neterion	net: vxge: Declare the function vxge_reset_all_vpaths as void	2021-06-01 15:29:43 -07:00
netronome	nfp: flower-ct: implement action_merge check	2021-06-16 12:42:53 -07:00
ni	net: nixge: simplify code with devm platform functions	2021-06-08 16:36:57 -07:00
nvidia
nxp
oki-semi
packetengines
pasemi
pensando
qlogic	qlcnic: Use list_for_each_entry() to simplify code in qlcnic_main.c	2021-06-16 00:44:54 -07:00
qualcomm	net: qualcomm: rmnet: Remove some unneeded casts	2021-06-16 12:19:50 -07:00
rdc	net: r6040: Allow restarting auto-negotiation	2021-05-23 17:23:59 -07:00
realtek	r8169: avoid link-up interrupt issue on RTL8106e if user enables ASPM	2021-06-11 12:54:25 -07:00
renesas	net: ethernet: ravb: Use devm_platform_get_and_ioremap_resource()	2021-06-09 13:51:11 -07:00
rocker
samsung
seeq	net: seeq: remove leading spaces before tabs	2021-05-19 12:17:31 -07:00
sfc	Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net	2021-05-27 09:55:10 -07:00
sgi	net: sgi: ioc3-eth: check return value after calling platform_get_resource()	2021-06-09 15:24:43 -07:00
silan
sis	net: sis: remove leading spaces before tabs	2021-05-19 12:17:31 -07:00
smsc	net: smsc: remove leading spaces before tabs	2021-05-19 12:17:31 -07:00
socionext
stmicro	net: stmmac: Fix error return code in ingenic_mac_probe()	2021-06-16 12:02:38 -07:00
sun	Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net	2021-05-27 09:55:10 -07:00
synopsys
tehuti
ti	net: ti: add pp skb recycling support	2021-06-15 11:50:43 -07:00
toshiba
tundra
via
wiznet	net: w5100: Use devm_platform_get_and_ioremap_resource()	2021-06-10 13:53:13 -07:00
xilinx	net: axienet: Use devm_platform_get_and_ioremap_resource()	2021-06-10 13:53:13 -07:00
xircom	net: xircom: remove leading spaces before tabs	2021-05-19 12:17:31 -07:00
xscale	net: ethernet: ixp4xx_eth: Use devm_platform_get_and_ioremap_resource()	2021-06-07 13:05:37 -07:00
dnet.c
dnet.h
ec_bhf.c
ethoc.c
fealnx.c	net: fealnx: remove leading spaces before tabs	2021-05-19 12:17:31 -07:00
jme.c
jme.h
Kconfig
korina.c
lantiq_etop.c
lantiq_xrx200.c	net: lantiq: Use devm_platform_get_and_ioremap_resource()	2021-06-07 13:05:37 -07:00
Makefile