History log of /openbmc/linux/kernel/bpf/cpumap.c (Results 1 – 25 of 560)
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Revision tags: v6.6.67, v6.6.66, v6.6.65, v6.6.64, v6.6.63, v6.6.62, v6.6.61, v6.6.60, v6.6.59, v6.6.58, v6.6.57, v6.6.56, v6.6.55, v6.6.54, v6.6.53, v6.6.52, v6.6.51, v6.6.50, v6.6.49, v6.6.48, v6.6.47, v6.6.46, v6.6.45, v6.6.44, v6.6.43, v6.6.42, v6.6.41, v6.6.40, v6.6.39, v6.6.38, v6.6.37, v6.6.36, v6.6.35, v6.6.34, v6.6.33, v6.6.32, v6.6.31, v6.6.30, v6.6.29, v6.6.28, v6.6.27, v6.6.26, v6.6.25, v6.6.24
# 5ee9cd06 27-Mar-2024 Andrew Jeffery <andrew@codeconstruct.com.au>

Merge tag 'v6.6.23' into dev-6.6

Linux 6.6.23


Revision tags: v6.6.23
# 5fcee137 19-Mar-2024 Yan Zhai <yan@cloudflare.com>

bpf: report RCU QS in cpumap kthread

[ Upstream commit 00bf63122459e87193ee7f1bc6161c83a525569f ]

When there are heavy load, cpumap kernel threads can be busy polling
packets from redirect queues a

bpf: report RCU QS in cpumap kthread

[ Upstream commit 00bf63122459e87193ee7f1bc6161c83a525569f ]

When there are heavy load, cpumap kernel threads can be busy polling
packets from redirect queues and block out RCU tasks from reaching
quiescent states. It is insufficient to just call cond_resched() in such
context. Periodically raise a consolidated RCU QS before cond_resched
fixes the problem.

Fixes: 6710e1126934 ("bpf: introduce new bpf cpu map type BPF_MAP_TYPE_CPUMAP")
Reviewed-by: Jesper Dangaard Brouer <hawk@kernel.org>
Signed-off-by: Yan Zhai <yan@cloudflare.com>
Acked-by: Paul E. McKenney <paulmck@kernel.org>
Acked-by: Jesper Dangaard Brouer <hawk@kernel.org>
Link: https://lore.kernel.org/r/c17b9f1517e19d813da3ede5ed33ee18496bb5d8.1710877680.git.yan@cloudflare.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>

show more ...


# f8b04488 17-Mar-2024 Andrew Jeffery <andrew@codeconstruct.com.au>

Merge tag 'v6.6.22' into dev-6.6

Linux 6.6.22


# f562e4c4 05-Mar-2024 Toke Høiland-Jørgensen <toke@redhat.com>

cpumap: Zero-initialise xdp_rxq_info struct before running XDP program

[ Upstream commit 2487007aa3b9fafbd2cb14068f49791ce1d7ede5 ]

When running an XDP program that is attached to a cpumap entry, w

cpumap: Zero-initialise xdp_rxq_info struct before running XDP program

[ Upstream commit 2487007aa3b9fafbd2cb14068f49791ce1d7ede5 ]

When running an XDP program that is attached to a cpumap entry, we don't
initialise the xdp_rxq_info data structure being used in the xdp_buff
that backs the XDP program invocation. Tobias noticed that this leads to
random values being returned as the xdp_md->rx_queue_index value for XDP
programs running in a cpumap.

This means we're basically returning the contents of the uninitialised
memory, which is bad. Fix this by zero-initialising the rxq data
structure before running the XDP program.

Fixes: 9216477449f3 ("bpf: cpumap: Add the possibility to attach an eBPF program to cpumap")
Reported-by: Tobias Böhm <tobias@aibor.de>
Signed-off-by: Toke Høiland-Jørgensen <toke@redhat.com>
Link: https://lore.kernel.org/r/20240305213132.11955-1-toke@redhat.com
Signed-off-by: Martin KaFai Lau <martin.lau@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>

show more ...


Revision tags: v6.6.16, v6.6.15, v6.6.14, v6.6.13, v6.6.12, v6.6.11, v6.6.10, v6.6.9, v6.6.8, v6.6.7, v6.6.6, v6.6.5, v6.6.4, v6.6.3, v6.6.2, v6.5.11, v6.6.1, v6.5.10, v6.6, v6.5.9, v6.5.8, v6.5.7, v6.5.6, v6.5.5, v6.5.4, v6.5.3
# c900529f 12-Sep-2023 Thomas Zimmermann <tzimmermann@suse.de>

Merge drm/drm-fixes into drm-misc-fixes

Forwarding to v6.6-rc1.

Signed-off-by: Thomas Zimmermann <tzimmermann@suse.de>


Revision tags: v6.5.2, v6.1.51, v6.5.1
# 1ac731c5 30-Aug-2023 Dmitry Torokhov <dmitry.torokhov@gmail.com>

Merge branch 'next' into for-linus

Prepare input updates for 6.6 merge window.


Revision tags: v6.1.50
# bd6c11bc 29-Aug-2023 Linus Torvalds <torvalds@linux-foundation.org>

Merge tag 'net-next-6.6' of git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net-next

Pull networking updates from Paolo Abeni:
"Core:

- Increase size limits for to-be-sent skb frag allocat

Merge tag 'net-next-6.6' of git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net-next

Pull networking updates from Paolo Abeni:
"Core:

- Increase size limits for to-be-sent skb frag allocations. This
allows tun, tap devices and packet sockets to better cope with
large writes operations

- Store netdevs in an xarray, to simplify iterating over netdevs

- Refactor nexthop selection for multipath routes

- Improve sched class lifetime handling

- Add backup nexthop ID support for bridge

- Implement drop reasons support in openvswitch

- Several data races annotations and fixes

- Constify the sk parameter of routing functions

- Prepend kernel version to netconsole message

Protocols:

- Implement support for TCP probing the peer being under memory
pressure

- Remove hard coded limitation on IPv6 specific info placement inside
the socket struct

- Get rid of sysctl_tcp_adv_win_scale and use an auto-estimated per
socket scaling factor

- Scaling-up the IPv6 expired route GC via a separated list of
expiring routes

- In-kernel support for the TLS alert protocol

- Better support for UDP reuseport with connected sockets

- Add NEXT-C-SID support for SRv6 End.X behavior, reducing the SR
header size

- Get rid of additional ancillary per MPTCP connection struct socket

- Implement support for BPF-based MPTCP packet schedulers

- Format MPTCP subtests selftests results in TAP

- Several new SMC 2.1 features including unique experimental options,
max connections per lgr negotiation, max links per lgr negotiation

BPF:

- Multi-buffer support in AF_XDP

- Add multi uprobe BPF links for attaching multiple uprobes and usdt
probes, which is significantly faster and saves extra fds

- Implement an fd-based tc BPF attach API (TCX) and BPF link support
on top of it

- Add SO_REUSEPORT support for TC bpf_sk_assign

- Support new instructions from cpu v4 to simplify the generated code
and feature completeness, for x86, arm64, riscv64

- Support defragmenting IPv(4|6) packets in BPF

- Teach verifier actual bounds of bpf_get_smp_processor_id() and fix
perf+libbpf issue related to custom section handling

- Introduce bpf map element count and enable it for all program types

- Add a BPF hook in sys_socket() to change the protocol ID from
IPPROTO_TCP to IPPROTO_MPTCP to cover migration for legacy

- Introduce bpf_me_mcache_free_rcu() and fix OOM under stress

- Add uprobe support for the bpf_get_func_ip helper

- Check skb ownership against full socket

- Support for up to 12 arguments in BPF trampoline

- Extend link_info for kprobe_multi and perf_event links

Netfilter:

- Speed-up process exit by aborting ruleset validation if a fatal
signal is pending

- Allow NLA_POLICY_MASK to be used with BE16/BE32 types

Driver API:

- Page pool optimizations, to improve data locality and cache usage

- Introduce ndo_hwtstamp_get() and ndo_hwtstamp_set() to avoid the
need for raw ioctl() handling in drivers

- Simplify genetlink dump operations (doit/dumpit) providing them the
common information already populated in struct genl_info

- Extend and use the yaml devlink specs to [re]generate the split ops

- Introduce devlink selective dumps, to allow SF filtering SF based
on handle and other attributes

- Add yaml netlink spec for netlink-raw families, allow route, link
and address related queries via the ynl tool

- Remove phylink legacy mode support

- Support offload LED blinking to phy

- Add devlink port function attributes for IPsec

New hardware / drivers:

- Ethernet:
- Broadcom ASP 2.0 (72165) ethernet controller
- MediaTek MT7988 SoC
- Texas Instruments AM654 SoC
- Texas Instruments IEP driver
- Atheros qca8081 phy
- Marvell 88Q2110 phy
- NXP TJA1120 phy

- WiFi:
- MediaTek mt7981 support

- Can:
- Kvaser SmartFusion2 PCI Express devices
- Allwinner T113 controllers
- Texas Instruments tcan4552/4553 chips

- Bluetooth:
- Intel Gale Peak
- Qualcomm WCN3988 and WCN7850
- NXP AW693 and IW624
- Mediatek MT2925

Drivers:

- Ethernet NICs:
- nVidia/Mellanox:
- mlx5:
- support UDP encapsulation in packet offload mode
- IPsec packet offload support in eswitch mode
- improve aRFS observability by adding new set of counters
- extends MACsec offload support to cover RoCE traffic
- dynamic completion EQs
- mlx4:
- convert to use auxiliary bus instead of custom interface
logic
- Intel
- ice:
- implement switchdev bridge offload, even for LAG
interfaces
- implement SRIOV support for LAG interfaces
- igc:
- add support for multiple in-flight TX timestamps
- Broadcom:
- bnxt:
- use the unified RX page pool buffers for XDP and non-XDP
- use the NAPI skb allocation cache
- OcteonTX2:
- support Round Robin scheduling HTB offload
- TC flower offload support for SPI field
- Freescale:
- add XDP_TX feature support
- AMD:
- ionic: add support for PCI FLR event
- sfc:
- basic conntrack offload
- introduce eth, ipv4 and ipv6 pedit offloads
- ST Microelectronics:
- stmmac: maximze PTP timestamping resolution

- Virtual NICs:
- Microsoft vNIC:
- batch ringing RX queue doorbell on receiving packets
- add page pool for RX buffers
- Virtio vNIC:
- add per queue interrupt coalescing support
- Google vNIC:
- add queue-page-list mode support

- Ethernet high-speed switches:
- nVidia/Mellanox (mlxsw):
- add port range matching tc-flower offload
- permit enslavement to netdevices with uppers

- Ethernet embedded switches:
- Marvell (mv88e6xxx):
- convert to phylink_pcs
- Renesas:
- r8A779fx: add speed change support
- rzn1: enables vlan support

- Ethernet PHYs:
- convert mv88e6xxx to phylink_pcs

- WiFi:
- Qualcomm Wi-Fi 7 (ath12k):
- extremely High Throughput (EHT) PHY support
- RealTek (rtl8xxxu):
- enable AP mode for: RTL8192FU, RTL8710BU (RTL8188GU),
RTL8192EU and RTL8723BU
- RealTek (rtw89):
- Introduce Time Averaged SAR (TAS) support

- Connector:
- support for event filtering"

* tag 'net-next-6.6' of git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net-next: (1806 commits)
net: ethernet: mtk_wed: minor change in wed_{tx,rx}info_show
net: ethernet: mtk_wed: add some more info in wed_txinfo_show handler
net: stmmac: clarify difference between "interface" and "phy_interface"
r8152: add vendor/device ID pair for D-Link DUB-E250
devlink: move devlink_notify_register/unregister() to dev.c
devlink: move small_ops definition into netlink.c
devlink: move tracepoint definitions into core.c
devlink: push linecard related code into separate file
devlink: push rate related code into separate file
devlink: push trap related code into separate file
devlink: use tracepoint_enabled() helper
devlink: push region related code into separate file
devlink: push param related code into separate file
devlink: push resource related code into separate file
devlink: push dpipe related code into separate file
devlink: move and rename devlink_dpipe_send_and_alloc_skb() helper
devlink: push shared buffer related code into separate file
devlink: push port related code into separate file
devlink: push object register/unregister notifications into separate helpers
inet: fix IP_TRANSPARENT error handling
...

show more ...


# 692f5510 28-Aug-2023 Takashi Iwai <tiwai@suse.de>

Merge tag 'asoc-v6.6' of https://git.kernel.org/pub/scm/linux/kernel/git/broonie/sound into for-linus

ASoC: Updates for v6.6

The rest of the updates for v6.6, some of the highlights include:

- A

Merge tag 'asoc-v6.6' of https://git.kernel.org/pub/scm/linux/kernel/git/broonie/sound into for-linus

ASoC: Updates for v6.6

The rest of the updates for v6.6, some of the highlights include:

- A big API cleanup from Morimoto-san, rationalising the places we put
functions.
- Lots of work on the SOF framework, AMD and Intel drivers, including a
lot of cleanup and new device support.
- Standardisation of the presentation of jacks from drivers.
- Provision of some generic sound card DT properties.
- Conversion oof more drivers to the maple tree register cache.
- New drivers for AMD Van Gogh, AWInic AW88261, Cirrus Logic cs42l43,
various Intel platforms, Mediatek MT7986, RealTek RT1017 and StarFive
JH7110.

show more ...


Revision tags: v6.5, v6.1.49, v6.1.48
# bebfbf07 25-Aug-2023 Jakub Kicinski <kuba@kernel.org>

Merge tag 'for-netdev' of https://git.kernel.org/pub/scm/linux/kernel/git/bpf/bpf-next

Daniel Borkmann says:

====================
pull-request: bpf-next 2023-08-25

We've added 87 non-merge commits

Merge tag 'for-netdev' of https://git.kernel.org/pub/scm/linux/kernel/git/bpf/bpf-next

Daniel Borkmann says:

====================
pull-request: bpf-next 2023-08-25

We've added 87 non-merge commits during the last 8 day(s) which contain
a total of 104 files changed, 3719 insertions(+), 4212 deletions(-).

The main changes are:

1) Add multi uprobe BPF links for attaching multiple uprobes
and usdt probes, which is significantly faster and saves extra fds,
from Jiri Olsa.

2) Add support BPF cpu v4 instructions for arm64 JIT compiler,
from Xu Kuohai.

3) Add support BPF cpu v4 instructions for riscv64 JIT compiler,
from Pu Lehui.

4) Fix LWT BPF xmit hooks wrt their return values where propagating
the result from skb_do_redirect() would trigger a use-after-free,
from Yan Zhai.

5) Fix a BPF verifier issue related to bpf_kptr_xchg() with local kptr
where the map's value kptr type and locally allocated obj type
mismatch, from Yonghong Song.

6) Fix BPF verifier's check_func_arg_reg_off() function wrt graph
root/node which bypassed reg->off == 0 enforcement,
from Kumar Kartikeya Dwivedi.

7) Lift BPF verifier restriction in networking BPF programs to treat
comparison of packet pointers not as a pointer leak,
from Yafang Shao.

8) Remove unmaintained XDP BPF samples as they are maintained
in xdp-tools repository out of tree, from Toke Høiland-Jørgensen.

9) Batch of fixes for the tracing programs from BPF samples in order
to make them more libbpf-aware, from Daniel T. Lee.

10) Fix a libbpf signedness determination bug in the CO-RE relocation
handling logic, from Andrii Nakryiko.

11) Extend libbpf to support CO-RE kfunc relocations. Also follow-up
fixes for bpf_refcount shared ownership implementation,
both from Dave Marchevsky.

12) Add a new bpf_object__unpin() API function to libbpf,
from Daniel Xu.

13) Fix a memory leak in libbpf to also free btf_vmlinux
when the bpf_object gets closed, from Hao Luo.

14) Small error output improvements to test_bpf module, from Helge Deller.

* tag 'for-netdev' of https://git.kernel.org/pub/scm/linux/kernel/git/bpf/bpf-next: (87 commits)
selftests/bpf: Add tests for rbtree API interaction in sleepable progs
bpf: Allow bpf_spin_{lock,unlock} in sleepable progs
bpf: Consider non-owning refs to refcounted nodes RCU protected
bpf: Reenable bpf_refcount_acquire
bpf: Use bpf_mem_free_rcu when bpf_obj_dropping refcounted nodes
bpf: Consider non-owning refs trusted
bpf: Ensure kptr_struct_meta is non-NULL for collection insert and refcount_acquire
selftests/bpf: Enable cpu v4 tests for RV64
riscv, bpf: Support unconditional bswap insn
riscv, bpf: Support signed div/mod insns
riscv, bpf: Support 32-bit offset jmp insn
riscv, bpf: Support sign-extension mov insns
riscv, bpf: Support sign-extension load insns
riscv, bpf: Fix missing exception handling and redundant zext for LDX_B/H/W
samples/bpf: Add note to README about the XDP utilities moved to xdp-tools
samples/bpf: Cleanup .gitignore
samples/bpf: Remove the xdp_sample_pkts utility
samples/bpf: Remove the xdp1 and xdp2 utilities
samples/bpf: Remove the xdp_rxq_info utility
samples/bpf: Remove the xdp_redirect* utilities
...
====================

Link: https://lore.kernel.org/r/20230825194319.12727-1-daniel@iogearbox.net
Signed-off-by: Jakub Kicinski <kuba@kernel.org>

show more ...


# fdebffeb 23-Aug-2023 Dave Airlie <airlied@redhat.com>

BackMerge tag 'v6.5-rc7' into drm-next

Linux 6.5-rc7

This is needed for the CI stuff and the msm pull has fixes in it.

Signed-off-by: Dave Airlie <airlied@redhat.com>


# 3fb5a656 23-Aug-2023 Christian Brauner <brauner@kernel.org>

Merge tag 'vfs-6.6-merge-2' of ssh://gitolite.kernel.org/pub/scm/fs/xfs/xfs-linux

Pull filesystem freezing updates from Darrick Wong:

New code for 6.6:

* Allow the kernel to initiate a freeze of

Merge tag 'vfs-6.6-merge-2' of ssh://gitolite.kernel.org/pub/scm/fs/xfs/xfs-linux

Pull filesystem freezing updates from Darrick Wong:

New code for 6.6:

* Allow the kernel to initiate a freeze of a filesystem. The kernel
and userspace can both hold a freeze on a filesystem at the same
time; the freeze is not lifted until /both/ holders lift it. This
will enable us to fix a longstanding bug in XFS online fsck.

Signed-off-by: Darrick J. Wong <djwong@kernel.org>
Message-Id: <20230822182604.GB11286@frogsfrogsfrogs>
Signed-off-by: Christian Brauner <brauner@kernel.org>

show more ...


# 0bbe0649 22-Aug-2023 Mark Brown <broonie@kernel.org>

Add cs42l43 PC focused SoundWire CODEC

Merge series from Charles Keepax <ckeepax@opensource.cirrus.com>:

This patch chain adds support for the Cirrus Logic cs42l43 PC focused
SoundWire CODEC. The c

Add cs42l43 PC focused SoundWire CODEC

Merge series from Charles Keepax <ckeepax@opensource.cirrus.com>:

This patch chain adds support for the Cirrus Logic cs42l43 PC focused
SoundWire CODEC. The chain is currently based of Lee's for-mfd-next
branch.

This series is mostly just a resend keeping pace with the kernel under
it, except for a minor fixup in the ASoC stuff.

Thanks,
Charles

Charles Keepax (4):
dt-bindings: mfd: cirrus,cs42l43: Add initial DT binding
mfd: cs42l43: Add support for cs42l43 core driver
pinctrl: cs42l43: Add support for the cs42l43
ASoC: cs42l43: Add support for the cs42l43

Lucas Tanure (2):
soundwire: bus: Allow SoundWire peripherals to register IRQ handlers
spi: cs42l43: Add SPI controller support

.../bindings/sound/cirrus,cs42l43.yaml | 313 +++
MAINTAINERS | 4 +
drivers/mfd/Kconfig | 23 +
drivers/mfd/Makefile | 3 +
drivers/mfd/cs42l43-i2c.c | 98 +
drivers/mfd/cs42l43-sdw.c | 239 ++
drivers/mfd/cs42l43.c | 1188 +++++++++
drivers/mfd/cs42l43.h | 28 +
drivers/pinctrl/cirrus/Kconfig | 11 +
drivers/pinctrl/cirrus/Makefile | 2 +
drivers/pinctrl/cirrus/pinctrl-cs42l43.c | 609 +++++
drivers/soundwire/bus.c | 32 +
drivers/soundwire/bus_type.c | 12 +
drivers/spi/Kconfig | 7 +
drivers/spi/Makefile | 1 +
drivers/spi/spi-cs42l43.c | 284 ++
include/linux/mfd/cs42l43-regs.h | 1184 +++++++++
include/linux/mfd/cs42l43.h | 102 +
include/linux/soundwire/sdw.h | 9 +
include/sound/cs42l43.h | 17 +
sound/soc/codecs/Kconfig | 16 +
sound/soc/codecs/Makefile | 4 +
sound/soc/codecs/cs42l43-jack.c | 946 +++++++
sound/soc/codecs/cs42l43-sdw.c | 74 +
sound/soc/codecs/cs42l43.c | 2278 +++++++++++++++++
sound/soc/codecs/cs42l43.h | 131 +
26 files changed, 7615 insertions(+)
create mode 100644 Documentation/devicetree/bindings/sound/cirrus,cs42l43.yaml
create mode 100644 drivers/mfd/cs42l43-i2c.c
create mode 100644 drivers/mfd/cs42l43-sdw.c
create mode 100644 drivers/mfd/cs42l43.c
create mode 100644 drivers/mfd/cs42l43.h
create mode 100644 drivers/pinctrl/cirrus/pinctrl-cs42l43.c
create mode 100644 drivers/spi/spi-cs42l43.c
create mode 100644 include/linux/mfd/cs42l43-regs.h
create mode 100644 include/linux/mfd/cs42l43.h
create mode 100644 include/sound/cs42l43.h
create mode 100644 sound/soc/codecs/cs42l43-jack.c
create mode 100644 sound/soc/codecs/cs42l43-sdw.c
create mode 100644 sound/soc/codecs/cs42l43.c
create mode 100644 sound/soc/codecs/cs42l43.h

--
2.30.2

show more ...


# 5bebd3e3 21-Aug-2023 Alexei Starovoitov <ast@kernel.org>

Merge branch 'remove-unnecessary-synchronizations-in-cpumap'

Hou Tao says:

====================
Remove unnecessary synchronizations in cpumap

From: Hou Tao <houtao1@huawei.com>

Hi,

This is the f

Merge branch 'remove-unnecessary-synchronizations-in-cpumap'

Hou Tao says:

====================
Remove unnecessary synchronizations in cpumap

From: Hou Tao <houtao1@huawei.com>

Hi,

This is the formal patchset to remove unnecessary synchronizations in
cpu-map after address comments and collect Rvb tags from Toke
Høiland-Jørgensen (Big thanks to Toke). Patch #1 removes the unnecessary
rcu_barrier() when freeing bpf_cpu_map_entry and replaces it by
queue_rcu_work(). Patch #2 removes the unnecessary call_rcu() and
queue_work() when destroying cpu-map and does the freeing directly.

Test the patchset by using xdp_redirect_cpu and virtio-net. Both
xdp-mode and skb-mode have been exercised and no issues were reported.
As ususal, comments and suggestions are always welcome.

Change Log:
v1:
* address comments from Toke Høiland-Jørgensen
* add Rvb tags from Toke Høiland-Jørgensen
* update outdated comment in cpu_map_delete_elem()

RFC: https://lore.kernel.org/bpf/20230728023030.1906124-1-houtao@huaweicloud.com
====================

Link: https://lore.kernel.org/r/20230816045959.358059-1-houtao@huaweicloud.com
Signed-off-by: Alexei Starovoitov <ast@kernel.org>

show more ...


Revision tags: v6.1.46
# c2e42ddf 15-Aug-2023 Hou Tao <houtao1@huawei.com>

bpf, cpumask: Clean up bpf_cpu_map_entry directly in cpu_map_free

After synchronous_rcu(), both the dettached XDP program and
xdp_do_flush() are completed, and the only user of bpf_cpu_map_entry
wil

bpf, cpumask: Clean up bpf_cpu_map_entry directly in cpu_map_free

After synchronous_rcu(), both the dettached XDP program and
xdp_do_flush() are completed, and the only user of bpf_cpu_map_entry
will be cpu_map_kthread_run(), so instead of calling
__cpu_map_entry_replace() to stop kthread and cleanup entry after a RCU
grace period, do these things directly.

Signed-off-by: Hou Tao <houtao1@huawei.com>
Reviewed-by: Toke Høiland-Jørgensen <toke@redhat.com>
Link: https://lore.kernel.org/r/20230816045959.358059-3-houtao@huaweicloud.com
Signed-off-by: Alexei Starovoitov <ast@kernel.org>

show more ...


# 8f8500a2 15-Aug-2023 Hou Tao <houtao1@huawei.com>

bpf, cpumap: Use queue_rcu_work() to remove unnecessary rcu_barrier()

As for now __cpu_map_entry_replace() uses call_rcu() to wait for the
inflight xdp program to exit the RCU read critical section,

bpf, cpumap: Use queue_rcu_work() to remove unnecessary rcu_barrier()

As for now __cpu_map_entry_replace() uses call_rcu() to wait for the
inflight xdp program to exit the RCU read critical section, and then
launch kworker cpu_map_kthread_stop() to call kthread_stop() to flush
all pending xdp frames or skbs.

But it is unnecessary to use rcu_barrier() in cpu_map_kthread_stop() to
wait for the completion of __cpu_map_entry_free(), because rcu_barrier()
will wait for all pending RCU callbacks and cpu_map_kthread_stop() only
needs to wait for the completion of a specific __cpu_map_entry_free().

So use queue_rcu_work() to replace call_rcu(), schedule_work() and
rcu_barrier(). queue_rcu_work() will queue a __cpu_map_entry_free()
kworker after a RCU grace period. Because __cpu_map_entry_free() is
running in a kworker context, so it is OK to do all of these freeing
procedures include kthread_stop() in it.

After the update, there is no need to do reference-counting for
bpf_cpu_map_entry, because bpf_cpu_map_entry is freed directly in
__cpu_map_entry_free(), so just remove it.

Signed-off-by: Hou Tao <houtao1@huawei.com>
Reviewed-by: Toke Høiland-Jørgensen <toke@redhat.com>
Link: https://lore.kernel.org/r/20230816045959.358059-2-houtao@huaweicloud.com
Signed-off-by: Alexei Starovoitov <ast@kernel.org>

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# a3dd14c0 21-Aug-2023 Georgi Djakov <djakov@kernel.org>

Merge tag 'v6.5-rc6' into icc-next

The fixes that got merged into v6.5-rc6 are needed here.

Signed-off-by: Georgi Djakov <djakov@kernel.org>


# 642073c3 20-Aug-2023 Greg Kroah-Hartman <gregkh@linuxfoundation.org>

Merge commit b320441c04c9 ("Merge tag 'tty-6.5-rc7' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/tty") into tty-next

We need the serial-core fixes in here as well.

Signed-off-by: Greg Kr

Merge commit b320441c04c9 ("Merge tag 'tty-6.5-rc7' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/tty") into tty-next

We need the serial-core fixes in here as well.

Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

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# ab472430 18-Aug-2023 Mark Brown <broonie@kernel.org>

Add cs42l43 PC focused SoundWire CODEC

Merge series from Charles Keepax <ckeepax@opensource.cirrus.com>:

This patch chain adds support for the Cirrus Logic cs42l43 PC focused
SoundWire CODEC.


# 9e6b3986 16-Aug-2023 Mark Brown <broonie@kernel.org>

regulator: Get Synquacer testing working

Merge up v6.5-rc6 which has a fix that gets Synquacer netbooting so we
can include it in our testing.


# a35762dd 15-Aug-2023 Jason Gunthorpe <jgg@nvidia.com>

Merge tag 'v6.5-rc6' into iommufd for-next

Required for following patches.

Resolve merge conflict by using the hunk from the for-next branch and
shifting the iommufd_object_deref_user() into iommuf

Merge tag 'v6.5-rc6' into iommufd for-next

Required for following patches.

Resolve merge conflict by using the hunk from the for-next branch and
shifting the iommufd_object_deref_user() into iommufd_hw_pagetable_put()

Signed-off-by: Jason Gunthorpe <jgg@nvidia.com>

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# bbb9e06d 14-Aug-2023 Greg Kroah-Hartman <gregkh@linuxfoundation.org>

Merge 6.5-rc6 into usb-next

We need the USB and Thunderbolt fixes in here to build on.

Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>


# e75850b4 13-Aug-2023 Greg Kroah-Hartman <gregkh@linuxfoundation.org>

Merge 6.5-rc6 into char-misc-next

We need the char/misc fixes in here as well to build on top of.

Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>


Revision tags: v6.1.45, v6.1.44
# 2612e3bb 07-Aug-2023 Rodrigo Vivi <rodrigo.vivi@intel.com>

Merge drm/drm-next into drm-intel-next

Catching-up with drm-next and drm-intel-gt-next.
It will unblock a code refactor around the platform
definitions (names vs acronyms).

Signed-off-by: Rodrigo V

Merge drm/drm-next into drm-intel-next

Catching-up with drm-next and drm-intel-gt-next.
It will unblock a code refactor around the platform
definitions (names vs acronyms).

Signed-off-by: Rodrigo Vivi <rodrigo.vivi@intel.com>

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# 9f771739 07-Aug-2023 Joonas Lahtinen <joonas.lahtinen@linux.intel.com>

Merge drm/drm-next into drm-intel-gt-next

Need to pull in b3e4aae612ec ("drm/i915/hdcp: Modify hdcp_gsc_message msg sending mechanism") as
a dependency for https://patchwork.freedesktop.org/series/1

Merge drm/drm-next into drm-intel-gt-next

Need to pull in b3e4aae612ec ("drm/i915/hdcp: Modify hdcp_gsc_message msg sending mechanism") as
a dependency for https://patchwork.freedesktop.org/series/121735/

Signed-off-by: Joonas Lahtinen <joonas.lahtinen@linux.intel.com>

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# bf184299 04-Aug-2023 Arnaldo Carvalho de Melo <acme@redhat.com>

Merge remote-tracking branch 'torvalds/master' into perf-tools-next

To pick up the fixes that were just merged from perf-tools/perf-tools
for v6.5.

Signed-off-by: Arnaldo Carvalho de Melo <acme@red

Merge remote-tracking branch 'torvalds/master' into perf-tools-next

To pick up the fixes that were just merged from perf-tools/perf-tools
for v6.5.

Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>

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