Merge drm/drm-next into drm-xe-next

Get drm-xe-next on v6.11-rc2 and synchronized with drm-intel-next for
the display side. This resolves the current conflict for the
enable_display module parameter

Merge drm/drm-next into drm-xe-next

Get drm-xe-next on v6.11-rc2 and synchronized with drm-intel-next for
the display side. This resolves the current conflict for the
enable_display module parameter and allows further pending refactors.

Signed-off-by: Lucas De Marchi <lucas.demarchi@intel.com>

show more ...

Merge drm/drm-next into drm-misc-next

Get drm-misc-next to the state of v6.11-rc2.

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

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

Sync with v6.11-rc1 in general, and specifically get the new
BACKLIGHT_POWER_ constants for power states.

Signed-off-by: Jani Nikula <jani.nikula@intel.com>

Merge branch 'linus' into x86/mm

Bring x86 and selftests up to date

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

Let's start the new drm-misc-fixes cycle by bringing in 6.11-rc1.

Signed-off-by: Maxime Ripard <mripard@kernel.org>

Merge branch 'next' into for-linus

Prepare input updates for 6.11 merge window.

Merge tag 'v6.9' into next

Sync up with the mainline to bring in the new cleanup API.

Merge drm-misc-next-2024-07-04 into drm-misc-next-fixes

Let's start the drm-misc-next-fixes cycle.

Signed-off-by: Maxime Ripard <mripard@kernel.org>

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

Sync to v6.10-rc3.

Signed-off-by: Jani Nikula <jani.nikula@intel.com>

Merge drm/drm-next into drm-xe-next

Needed to get tracing cleanup and add mmio tracing series.

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

Merge remote-tracking branch 'drm-misc/drm-misc-next' into HEAD

Merge drm-misc-next tree into the msm-next tree in order to be able to
use HDMI connector framework for the MSM HDMI driver.

Merge drm/drm-next into drm-misc-next

Let's start the new release cycle.

Signed-off-by: Maxime Ripard <mripard@kernel.org>

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

Some display refactoring patches are needed in order to allow conflict-
less merging.

Signed-off-by: Tvrtko Ursulin <tursulin@ursulin.net>

Merge tag 'net-next-6.11' of git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net-next

Pull networking updates from Jakub Kicinski:
"Not much excitement - a handful of large patchsets (devmem a

Merge tag 'net-next-6.11' of git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net-next

Pull networking updates from Jakub Kicinski:
"Not much excitement - a handful of large patchsets (devmem among them)
did not make it in time.

Core & protocols:

- Use local_lock in addition to local_bh_disable() to protect per-CPU
resources in networking, a step closer for local_bh_disable() not
to act as a big lock on PREEMPT_RT

- Use flex array for netdevice priv area, ensure its cache alignment

- Add a sysctl knob to allow user to specify a default rto_min at
socket init time. Bit of a big hammer but multiple companies were
independently carrying such patch downstream so clearly it's useful

- Support scheduling transmission of packets based on CLOCK_TAI

- Un-pin TCP TIMEWAIT timer to avoid it firing on CPUs later cordoned
off using cpusets

- Support multiple L2TPv3 UDP tunnels using the same 5-tuple address

- Allow configuration of multipath hash seed, to both allow
synchronizing hashing of two routers, and preventing partial
accidental sync

- Improve TCP compliance with RFC 9293 for simultaneous connect()

- Support sending NAT keepalives in IPsec ESP in UDP states.
Userspace IKE daemon had to do this before, but the kernel can
better keep track of it

- Support sending supervision HSR frames with MAC addresses stored in
ProxyNodeTable when RedBox (i.e. HSR-SAN) is enabled

- Introduce IPPROTO_SMC for selecting SMC when socket is created

- Allow UDP GSO transmit from devices with no checksum offload

- openvswitch: add packet sampling via psample, separating the
sampled traffic from "upcall" packets sent to user space for
forwarding

- nf_tables: shrink memory consumption for transaction objects

Things we sprinkled into general kernel code:

- Power Sequencing subsystem (used by Qualcomm Bluetooth driver for
QCA6390) [ Already merged separately - Linus ]

- Add IRQ information in sysfs for auxiliary bus

- Introduce guard definition for local_lock

- Add aligned flavor of __cacheline_group_{begin, end}() markings for
grouping fields in structures

BPF:

- Notify user space (via epoll) when a struct_ops object is getting
detached/unregistered

- Add new kfuncs for a generic, open-coded bits iterator

- Enable BPF programs to declare arrays of kptr, bpf_rb_root, and
bpf_list_head

- Support resilient split BTF which cuts down on duplication and
makes BTF as compact as possible WRT BTF from modules

- Add support for dumping kfunc prototypes from BTF which enables
both detecting as well as dumping compilable prototypes for kfuncs

- riscv64 BPF JIT improvements in particular to add 12-argument
support for BPF trampolines and to utilize bpf_prog_pack for the
latter

- Add the capability to offload the netfilter flowtable in XDP layer
through kfuncs

Driver API:

- Allow users to configure IRQ tresholds between which automatic IRQ
moderation can choose

- Expand Power Sourcing (PoE) status with power, class and failure
reason. Support setting power limits

- Track additional RSS contexts in the core, make sure configuration
changes don't break them

- Support IPsec crypto offload for IPv6 ESP and IPv4 UDP-encapsulated
ESP data paths

- Support updating firmware on SFP modules

Tests and tooling:

- mptcp: use net/lib.sh to manage netns

- TCP-AO and TCP-MD5: replace debug prints used by tests with
tracepoints

- openvswitch: make test self-contained (don't depend on OvS CLI
tools)

Drivers:

- Ethernet high-speed NICs:
- Broadcom (bnxt):
- increase the max total outstanding PTP TX packets to 4
- add timestamping statistics support
- implement netdev_queue_mgmt_ops
- support new RSS context API
- Intel (100G, ice, idpf):
- implement FEC statistics and dumping signal quality indicators
- support E825C products (with 56Gbps PHYs)
- nVidia/Mellanox:
- support HW-GRO
- mlx4/mlx5: support per-queue statistics via netlink
- obey the max number of EQs setting in sub-functions
- AMD/Solarflare:
- support new RSS context API
- AMD/Pensando:
- ionic: rework fix for doorbell miss to lower overhead and
skip it on new HW
- Wangxun:
- txgbe: support Flow Director perfect filters

- Ethernet NICs consumer, embedded and virtual:
- Add driver for Tehuti Networks TN40xx chips
- Add driver for Meta's internal NIC chips
- Add driver for Ethernet MAC on Airoha EN7581 SoCs
- Add driver for Renesas Ethernet-TSN devices
- Google cloud vNIC:
- flow steering support
- Microsoft vNIC:
- support page sizes other than 4KB on ARM64
- vmware vNIC:
- support latency measurement (update to version 9)
- VirtIO net:
- support for Byte Queue Limits
- support configuring thresholds for automatic IRQ moderation
- support for AF_XDP Rx zero-copy
- Synopsys (stmmac):
- support for STM32MP13 SoC
- let platforms select the right PCS implementation
- TI:
- icssg-prueth: add multicast filtering support
- icssg-prueth: enable PTP timestamping and PPS
- Renesas:
- ravb: improve Rx performance 30-400% by using page pool,
theaded NAPI and timer-based IRQ coalescing
- ravb: add MII support for R-Car V4M
- Cadence (macb):
- macb: add ARP support to Wake-On-LAN
- Cortina:
- use phylib for RX and TX pause configuration

- Ethernet switches:
- nVidia/Mellanox:
- support configuration of multipath hash seed
- report more accurate max MTU
- use page_pool to improve Rx performance
- MediaTek:
- mt7530: add support for bridge port isolation
- Qualcomm:
- qca8k: add support for bridge port isolation
- Microchip:
- lan9371/2: add 100BaseTX PHY support
- NXP:
- vsc73xx: implement VLAN operations

- Ethernet PHYs:
- aquantia: enable support for aqr115c
- aquantia: add support for PHY LEDs
- realtek: add support for rtl8224 2.5Gbps PHY
- xpcs: add memory-mapped device support
- add BroadR-Reach link mode and support in Broadcom's PHY driver

- CAN:
- add document for ISO 15765-2 protocol support
- mcp251xfd: workaround for erratum DS80000789E, use timestamps to
catch when device returns incorrect FIFO status

- WiFi:
- mac80211/cfg80211:
- parse Transmit Power Envelope (TPE) data in mac80211 instead
of in drivers
- improvements for 6 GHz regulatory flexibility
- multi-link improvements
- support multiple radios per wiphy
- remove DEAUTH_NEED_MGD_TX_PREP flag
- Intel (iwlwifi):
- bump FW API to 91 for BZ/SC devices
- report 64-bit radiotap timestamp
- enable P2P low latency by default
- handle Transmit Power Envelope (TPE) advertised by AP
- remove support for older FW for new devices
- fast resume (keeping the device configured)
- mvm: re-enable Multi-Link Operation (MLO)
- aggregation (A-MSDU) optimizations
- MediaTek (mt76):
- mt7925 Multi-Link Operation (MLO) support
- Qualcomm (ath10k):
- LED support for various chipsets
- Qualcomm (ath12k):
- remove unsupported Tx monitor handling
- support channel 2 in 6 GHz band
- support Spatial Multiplexing Power Save (SMPS) in 6 GHz band
- supprt multiple BSSID (MBSSID) and Enhanced Multi-BSSID
Advertisements (EMA)
- support dynamic VLAN
- add panic handler for resetting the firmware state
- DebugFS support for datapath statistics
- WCN7850: support for Wake on WLAN
- Microchip (wilc1000):
- read MAC address during probe to make it visible to user space
- suspend/resume improvements
- TI (wl18xx):
- support newer firmware versions
- RealTek (rtw89):
- preparation for RTL8852BE-VT support
- Wake on WLAN support for WiFi 6 chips
- 36-bit PCI DMA support
- RealTek (rtlwifi):
- RTL8192DU support
- Broadcom (brcmfmac):
- Management Frame Protection support (to enable WPA3)

- Bluetooth:
- qualcomm: use the power sequencer for QCA6390
- btusb: mediatek: add ISO data transmission functions
- hci_bcm4377: add BCM4388 support
- btintel: add support for BlazarU core
- btintel: add support for Whale Peak2
- btnxpuart: add support for AW693 A1 chipset
- btnxpuart: add support for IW615 chipset
- btusb: add Realtek RTL8852BE support ID 0x13d3:0x3591"

* tag 'net-next-6.11' of git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net-next: (1589 commits)
eth: fbnic: Fix spelling mistake "tiggerring" -> "triggering"
tcp: Replace strncpy() with strscpy()
wifi: ath12k: fix build vs old compiler
tcp: Don't access uninit tcp_rsk(req)->ao_keyid in tcp_create_openreq_child().
eth: fbnic: Write the TCAM tables used for RSS control and Rx to host
eth: fbnic: Add L2 address programming
eth: fbnic: Add basic Rx handling
eth: fbnic: Add basic Tx handling
eth: fbnic: Add link detection
eth: fbnic: Add initial messaging to notify FW of our presence
eth: fbnic: Implement Rx queue alloc/start/stop/free
eth: fbnic: Implement Tx queue alloc/start/stop/free
eth: fbnic: Allocate a netdevice and napi vectors with queues
eth: fbnic: Add FW communication mechanism
eth: fbnic: Add message parsing for FW messages
eth: fbnic: Add register init to set PCIe/Ethernet device config
eth: fbnic: Allocate core device specific structures and devlink interface
eth: fbnic: Add scaffolding for Meta's NIC driver
PCI: Add Meta Platforms vendor ID
net/sched: cls_flower: propagate tca[TCA_OPTIONS] to NL_REQ_ATTR_CHECK
...

show more ...

Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net

Cross-merge networking fixes after downstream PR.

Conflicts:

net/sched/act_ct.c
26488172b029 ("net/sched: Fix UAF when resolving a

Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net

Cross-merge networking fixes after downstream PR.

Conflicts:

net/sched/act_ct.c
26488172b029 ("net/sched: Fix UAF when resolving a clash")
3abbd7ed8b76 ("act_ct: prepare for stolen verdict coming from conntrack and nat engine")

No adjacent changes.

Signed-off-by: Jakub Kicinski <kuba@kernel.org>

show more ...

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

Daniel Borkmann says:

====================
pull-request: bpf-next 2024-07-08

The following pull-request conta

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

Daniel Borkmann says:

====================
pull-request: bpf-next 2024-07-08

The following pull-request contains BPF updates for your *net-next* tree.

We've added 102 non-merge commits during the last 28 day(s) which contain
a total of 127 files changed, 4606 insertions(+), 980 deletions(-).

The main changes are:

1) Support resilient split BTF which cuts down on duplication and makes BTF
as compact as possible wrt BTF from modules, from Alan Maguire & Eduard Zingerman.

2) Add support for dumping kfunc prototypes from BTF which enables both detecting
as well as dumping compilable prototypes for kfuncs, from Daniel Xu.

3) Batch of s390x BPF JIT improvements to add support for BPF arena and to implement
support for BPF exceptions, from Ilya Leoshkevich.

4) Batch of riscv64 BPF JIT improvements in particular to add 12-argument support
for BPF trampolines and to utilize bpf_prog_pack for the latter, from Pu Lehui.

5) Extend BPF test infrastructure to add a CHECKSUM_COMPLETE validation option
for skbs and add coverage along with it, from Vadim Fedorenko.

6) Inline bpf_get_current_task/_btf() helpers in the arm64 BPF JIT which gives
a small 1% performance improvement in micro-benchmarks, from Puranjay Mohan.

7) Extend the BPF verifier to track the delta between linked registers in order
to better deal with recent LLVM code optimizations, from Alexei Starovoitov.

8) Fix bpf_wq_set_callback_impl() kfunc signature where the third argument should
have been a pointer to the map value, from Benjamin Tissoires.

9) Extend BPF selftests to add regular expression support for test output matching
and adjust some of the selftest when compiled under gcc, from Cupertino Miranda.

10) Simplify task_file_seq_get_next() and remove an unnecessary loop which always
iterates exactly once anyway, from Dan Carpenter.

11) Add the capability to offload the netfilter flowtable in XDP layer through
kfuncs, from Florian Westphal & Lorenzo Bianconi.

12) Various cleanups in networking helpers in BPF selftests to shave off a few
lines of open-coded functions on client/server handling, from Geliang Tang.

13) Properly propagate prog->aux->tail_call_reachable out of BPF verifier, so
that x86 JIT does not need to implement detection, from Leon Hwang.

14) Fix BPF verifier to add a missing check_func_arg_reg_off() to prevent an
out-of-bounds memory access for dynpointers, from Matt Bobrowski.

15) Fix bpf_session_cookie() kfunc to return __u64 instead of long pointer as
it might lead to problems on 32-bit archs, from Jiri Olsa.

16) Enhance traffic validation and dynamic batch size support in xsk selftests,
from Tushar Vyavahare.

bpf-next-for-netdev

* tag 'for-netdev' of https://git.kernel.org/pub/scm/linux/kernel/git/bpf/bpf-next: (102 commits)
selftests/bpf: DENYLIST.aarch64: Remove fexit_sleep
selftests/bpf: amend for wrong bpf_wq_set_callback_impl signature
bpf: helpers: fix bpf_wq_set_callback_impl signature
libbpf: Add NULL checks to bpf_object__{prev_map,next_map}
selftests/bpf: Remove exceptions tests from DENYLIST.s390x
s390/bpf: Implement exceptions
s390/bpf: Change seen_reg to a mask
bpf: Remove unnecessary loop in task_file_seq_get_next()
riscv, bpf: Optimize stack usage of trampoline
bpf, devmap: Add .map_alloc_check
selftests/bpf: Remove arena tests from DENYLIST.s390x
selftests/bpf: Add UAF tests for arena atomics
selftests/bpf: Introduce __arena_global
s390/bpf: Support arena atomics
s390/bpf: Enable arena
s390/bpf: Support address space cast instruction
s390/bpf: Support BPF_PROBE_MEM32
s390/bpf: Land on the next JITed instruction after exception
s390/bpf: Introduce pre- and post- probe functions
s390/bpf: Get rid of get_probe_mem_regno()
...
====================

Link: https://patch.msgid.link/20240708221438.10974-1-daniel@iogearbox.net
Signed-off-by: Paolo Abeni <pabeni@redhat.com>

show more ...

Merge branch 'small-api-fix-for-bpf_wq'

Benjamin Tissoires says:

====================
Small API fix for bpf_wq

I realized this while having a map containing both a struct bpf_timer and
a struct bp

Merge branch 'small-api-fix-for-bpf_wq'

Benjamin Tissoires says:

====================
Small API fix for bpf_wq

I realized this while having a map containing both a struct bpf_timer and
a struct bpf_wq: the third argument provided to the bpf_wq callback is
not the struct bpf_wq pointer itself, but the pointer to the value in
the map.

Which means that the users need to double cast the provided "value" as
this is not a struct bpf_wq *.

This is a change of API, but there doesn't seem to be much users of bpf_wq
right now, so we should be able to go with this right now.

Signed-off-by: Benjamin Tissoires <bentiss@kernel.org>
---
Changes in v2:
- amended the selftests to retrieve something from the third argument of
the callback
- Link to v1: https://lore.kernel.org/r/20240705-fix-wq-v1-0-91b4d82cd825@kernel.org

---
====================

Link: https://lore.kernel.org/r/20240708-fix-wq-v2-0-667e5c9fbd99@kernel.org
Signed-off-by: Alexei Starovoitov <ast@kernel.org>

show more ...

bpf: helpers: fix bpf_wq_set_callback_impl signature

I realized this while having a map containing both a struct bpf_timer and
a struct bpf_wq: the third argument provided to the bpf_wq callback is

bpf: helpers: fix bpf_wq_set_callback_impl signature

I realized this while having a map containing both a struct bpf_timer and
a struct bpf_wq: the third argument provided to the bpf_wq callback is
not the struct bpf_wq pointer itself, but the pointer to the value in
the map.

Which means that the users need to double cast the provided "value" as
this is not a struct bpf_wq *.

This is a change of API, but there doesn't seem to be much users of bpf_wq
right now, so we should be able to go with this right now.

Fixes: 81f1d7a583fa ("bpf: wq: add bpf_wq_set_callback_impl")
Signed-off-by: Benjamin Tissoires <bentiss@kernel.org>
Link: https://lore.kernel.org/r/20240708-fix-wq-v2-1-667e5c9fbd99@kernel.org
Signed-off-by: Alexei Starovoitov <ast@kernel.org>

show more ...

Merge branch 'fixes-for-kfunc-prototype-generation'

Daniel Xu says:

====================
Fixes for kfunc prototype generation

This patchset fixes new warnings and errors that kfunc prototype
gener

Merge branch 'fixes-for-kfunc-prototype-generation'

Daniel Xu says:

====================
Fixes for kfunc prototype generation

This patchset fixes new warnings and errors that kfunc prototype
generation caused.
====================

Link: https://lore.kernel.org/r/cover.1718295425.git.dxu@dxuuu.xyz
Signed-off-by: Alexei Starovoitov <ast@kernel.org>

show more ...

bpf: Fix bpf_dynptr documentation comments

The function argument names were changed but the doc comment was not.
Fix htmldocs build warning by updating doc comments.

Fixes: cce4c40b9606 ("bpf: tree

bpf: Fix bpf_dynptr documentation comments

The function argument names were changed but the doc comment was not.
Fix htmldocs build warning by updating doc comments.

Fixes: cce4c40b9606 ("bpf: treewide: Align kfunc signatures to prog point-of-view")
Signed-off-by: Daniel Xu <dxu@dxuuu.xyz>
Link: https://lore.kernel.org/r/d0b0eb05f91e12e5795966153b11998d3fc1d433.1718295425.git.dxu@dxuuu.xyz
Signed-off-by: Alexei Starovoitov <ast@kernel.org>

show more ...

Merge branch 'bpf-support-dumping-kfunc-prototypes-from-btf'

Daniel Xu says:

====================
bpf: Support dumping kfunc prototypes from BTF

This patchset enables both detecting as well as dum

Merge branch 'bpf-support-dumping-kfunc-prototypes-from-btf'

Daniel Xu says:

====================
bpf: Support dumping kfunc prototypes from BTF

This patchset enables both detecting as well as dumping compilable
prototypes for kfuncs.

The first commit instructs pahole to DECL_TAG kfuncs when available.
This requires v1.27 which was released on 6/11/24. With it, users will
be able to look at BTF inside vmlinux (or modules) and check if the
kfunc they want is available.

The final commit teaches bpftool how to dump kfunc prototypes. This
is done for developer convenience.

The rest of the commits are fixups to enable selftests to use the
newly dumped kfunc prototypes. With these, selftests will regularly
exercise the newly added codepaths.

Tested with and without the required pahole changes:

* https://github.com/kernel-patches/bpf/pull/7186
* https://github.com/kernel-patches/bpf/pull/7187

=== Changelog ===
From v4:
* Change bpf_session_cookie() return type
* Only fixup used fentry test kfunc prototypes
* Extract out projection detection into shared btf_is_projection_of()
* Fix kernel test robot build warnings about doc comments

From v3:
* Teach selftests to use dumped prototypes

From v2:
* Update Makefile.btf with pahole flag
* More error checking
* Output formatting changes
* Drop already-merged commit

From v1:
* Add __weak annotation
* Use btf_dump for kfunc prototypes
* Update kernel bpf_rdonly_cast() signature
====================

Link: https://lore.kernel.org/r/cover.1718207789.git.dxu@dxuuu.xyz
Signed-off-by: Alexei Starovoitov <ast@kernel.org>

show more ...

bpf: treewide: Align kfunc signatures to prog point-of-view

Previously, kfunc declarations in bpf_kfuncs.h (and others) used "user
facing" types for kfuncs prototypes while the actual kfunc definiti

bpf: treewide: Align kfunc signatures to prog point-of-view

Previously, kfunc declarations in bpf_kfuncs.h (and others) used "user
facing" types for kfuncs prototypes while the actual kfunc definitions
used "kernel facing" types. More specifically: bpf_dynptr vs
bpf_dynptr_kern, __sk_buff vs sk_buff, and xdp_md vs xdp_buff.

It wasn't an issue before, as the verifier allows aliased types.
However, since we are now generating kfunc prototypes in vmlinux.h (in
addition to keeping bpf_kfuncs.h around), this conflict creates
compilation errors.

Fix this conflict by using "user facing" types in kfunc definitions.
This results in more casts, but otherwise has no additional runtime
cost.

Note, similar to 5b268d1ebcdc ("bpf: Have bpf_rdonly_cast() take a const
pointer"), we also make kfuncs take const arguments where appropriate in
order to make the kfunc more permissive.

Signed-off-by: Daniel Xu <dxu@dxuuu.xyz>
Link: https://lore.kernel.org/r/b58346a63a0e66bc9b7504da751b526b0b189a67.1718207789.git.dxu@dxuuu.xyz
Signed-off-by: Alexei Starovoitov <ast@kernel.org>

show more ...

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

Daniel Borkmann says:

====================
pull-request: bpf-next 2024-06-06

We've added 54 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 2024-06-06

We've added 54 non-merge commits during the last 10 day(s) which contain
a total of 50 files changed, 1887 insertions(+), 527 deletions(-).

The main changes are:

1) Add a user space notification mechanism via epoll when a struct_ops
object is getting detached/unregistered, from Kui-Feng Lee.

2) Big batch of BPF selftest refactoring for sockmap and BPF congctl
tests, from Geliang Tang.

3) Add BTF field (type and string fields, right now) iterator support
to libbpf instead of using existing callback-based approaches,
from Andrii Nakryiko.

4) Extend BPF selftests for the latter with a new btf_field_iter
selftest, from Alan Maguire.

5) Add new kfuncs for a generic, open-coded bits iterator,
from Yafang Shao.

6) Fix BPF selftests' kallsyms_find() helper under kernels configured
with CONFIG_LTO_CLANG_THIN, from Yonghong Song.

7) Remove a bunch of unused structs in BPF selftests,
from David Alan Gilbert.

8) Convert test_sockmap section names into names understood by libbpf
so it can deduce program type and attach type, from Jakub Sitnicki.

9) Extend libbpf with the ability to configure log verbosity
via LIBBPF_LOG_LEVEL environment variable, from Mykyta Yatsenko.

10) Fix BPF selftests with regards to bpf_cookie and find_vma flakiness
in nested VMs, from Song Liu.

11) Extend riscv32/64 JITs to introduce shift/add helpers to generate Zba
optimization, from Xiao Wang.

12) Enable BPF programs to declare arrays and struct fields with kptr,
bpf_rb_root, and bpf_list_head, from Kui-Feng Lee.

* tag 'for-netdev' of https://git.kernel.org/pub/scm/linux/kernel/git/bpf/bpf-next: (54 commits)
selftests/bpf: Drop useless arguments of do_test in bpf_tcp_ca
selftests/bpf: Use start_test in test_dctcp in bpf_tcp_ca
selftests/bpf: Use start_test in test_dctcp_fallback in bpf_tcp_ca
selftests/bpf: Add start_test helper in bpf_tcp_ca
selftests/bpf: Use connect_to_fd_opts in do_test in bpf_tcp_ca
libbpf: Auto-attach struct_ops BPF maps in BPF skeleton
selftests/bpf: Add btf_field_iter selftests
selftests/bpf: Fix send_signal test with nested CONFIG_PARAVIRT
libbpf: Remove callback-based type/string BTF field visitor helpers
bpftool: Use BTF field iterator in btfgen
libbpf: Make use of BTF field iterator in BTF handling code
libbpf: Make use of BTF field iterator in BPF linker code
libbpf: Add BTF field iterator
selftests/bpf: Ignore .llvm.<hash> suffix in kallsyms_find()
selftests/bpf: Fix bpf_cookie and find_vma in nested VM
selftests/bpf: Test global bpf_list_head arrays.
selftests/bpf: Test global bpf_rb_root arrays and fields in nested struct types.
selftests/bpf: Test kptr arrays and kptrs in nested struct fields.
bpf: limit the number of levels of a nested struct type.
bpf: look into the types of the fields of a struct type recursively.
...
====================

Link: https://lore.kernel.org/r/20240606223146.23020-1-daniel@iogearbox.net
Signed-off-by: Jakub Kicinski <kuba@kernel.org>

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Merge branch 'bpf-add-a-generic-bits-iterator'

Yafang Shao says:

====================
bpf: Add a generic bits iterator

Three new kfuncs, namely bpf_iter_bits_{new,next,destroy}, have been
added fo

Merge branch 'bpf-add-a-generic-bits-iterator'

Yafang Shao says:

====================
bpf: Add a generic bits iterator

Three new kfuncs, namely bpf_iter_bits_{new,next,destroy}, have been
added for the new bpf_iter_bits functionality. These kfuncs enable the
iteration of the bits from a given address and a given number of bits.

- bpf_iter_bits_new
Initialize a new bits iterator for a given memory area. Due to the
limitation of bpf memalloc, the max number of bits to be iterated
over is (4096 * 8).
- bpf_iter_bits_next
Get the next bit in a bpf_iter_bits
- bpf_iter_bits_destroy
Destroy a bpf_iter_bits

The bits iterator can be used in any context and on any address.

Changes:
- v7->v8:
Refine the interface to avoid dealing with endianness (Andrii)
- v6->v7:
Fix endianness error for non-long-aligned data (Andrii)
- v5->v6:
Add positive tests (Andrii)
- v4->v5:
Simplify test cases (Andrii)
- v3->v4:
- Fix endianness error on s390x (Andrii)
- zero-initialize kit->bits_copy and zero out nr_bits (Andrii)
- v2->v3:
Optimization for u64/u32 mask (Andrii)
- v1->v2:
Simplify the CPU number verification code to avoid the failure on s390x
(Eduard)
- bpf: Add bpf_iter_cpumask
https://lwn.net/Articles/961104/
- bpf: Add new bpf helper bpf_for_each_cpu
https://lwn.net/Articles/939939/
====================

Link: https://lore.kernel.org/r/20240517023034.48138-1-laoar.shao@gmail.com
Signed-off-by: Andrii Nakryiko <andrii@kernel.org>

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bpf: Add bits iterator

Add three new kfuncs for the bits iterator:
- bpf_iter_bits_new
Initialize a new bits iterator for a given memory area. Due to the
limitation of bpf memalloc, the max numb

bpf: Add bits iterator

Add three new kfuncs for the bits iterator:
- bpf_iter_bits_new
Initialize a new bits iterator for a given memory area. Due to the
limitation of bpf memalloc, the max number of words (8-byte units) that
can be iterated over is limited to (4096 / 8).
- bpf_iter_bits_next
Get the next bit in a bpf_iter_bits
- bpf_iter_bits_destroy
Destroy a bpf_iter_bits

The bits iterator facilitates the iteration of the bits of a memory area,
such as cpumask. It can be used in any context and on any address.

Signed-off-by: Yafang Shao <laoar.shao@gmail.com>
Signed-off-by: Andrii Nakryiko <andrii@kernel.org>
Link: https://lore.kernel.org/bpf/20240517023034.48138-2-laoar.shao@gmail.com

show more ...