Linux kernel documentation tree maintained by Jonathan Corbet http://mirrors.hust.edu.cn/git/lwn.git/atom?h=docs-6.9-fixes2 2024-03-23T16:17:03+00:00 2024-03-23T16:17:03+00:00 Linus Torvalds torvalds@linux-foundation.org 2024-03-23T16:17:03+00:00 urn:sha1:02fb638bed9e5d62ab4f8d78f968b3e36e935c48 Pull ARM updates from Russell King: - remove a misuse of kernel-doc comment - use "Call trace:" for backtraces like other architectures - implement copy_from_kernel_nofault_allowed() to fix a LKDTM test - add a "cut here" line for prefetch aborts - remove unnecessary Kconfing entry for FRAME_POINTER - remove iwmmxy support for PJ4/PJ4B cores - use bitfield helpers in ptrace to improve readabililty - check if folio is reserved before flushing * tag 'for-linus' of git://git.armlinux.org.uk/~rmk/linux-arm: ARM: 9359/1: flush: check if the folio is reserved for no-mapping addresses ARM: 9354/1: ptrace: Use bitfield helpers ARM: 9352/1: iwmmxt: Remove support for PJ4/PJ4B cores ARM: 9353/1: remove unneeded entry for CONFIG_FRAME_POINTER ARM: 9351/1: fault: Add "cut here" line for prefetch aborts ARM: 9350/1: fault: Implement copy_from_kernel_nofault_allowed() ARM: 9349/1: unwind: Add missing "Call trace:" line ARM: 9334/1: mm: init: remove misuse of kernel-doc comment 2024-03-19T18:57:26+00:00 Linus Torvalds torvalds@linux-foundation.org 2024-03-19T18:57:26+00:00 urn:sha1:78c3925c048c752334873f56c3a3d1c9d53e0416 Pull more ARM SoC updates from Arnd Bergmann: "These are changes that for some reason ended up not making it into the first four branches but that should still make it into 6.9: - A rework of the omap clock support that touches both drivers and device tree files - The reset controller branch changes that had a dependency on late bugfixes. Merging them here avoids a backmerge of 6.8-rc5 into the drivers branch - The RISC-V/starfive, RISC-V/microchip and ARM/Broadcom devicetree changes that got delayed and needed some extra time in linux-next for wider testing" * tag 'soc-late-6.9' of git://git.kernel.org/pub/scm/linux/kernel/git/soc/soc: (31 commits) soc: fsl: dpio: fix kcalloc() argument order bus: ts-nbus: Improve error reporting bus: ts-nbus: Convert to atomic pwm API riscv: dts: starfive: jh7110: Add camera subsystem nodes ARM: bcm: stop selecing CONFIG_TICK_ONESHOT ARM: dts: omap3: Update clksel clocks to use reg instead of ti,bit-shift ARM: dts: am3: Update clksel clocks to use reg instead of ti,bit-shift clk: ti: Improve clksel clock bit parsing for reg property clk: ti: Handle possible address in the node name dt-bindings: pwm: opencores: Add compatible for StarFive JH8100 dt-bindings: riscv: cpus: reg matches hart ID reset: Instantiate reset GPIO controller for shared reset-gpios reset: gpio: Add GPIO-based reset controller cpufreq: do not open-code of_phandle_args_equal() of: Add of_phandle_args_equal() helper reset: simple: add support for Sophgo SG2042 dt-bindings: reset: sophgo: support SG2042 riscv: dts: microchip: add specific compatible for mpfs pdma riscv: dts: microchip: add missing CAN bus clocks ARM: brcmstb: Add debug UART entry for 74165 ... 2024-03-19T15:06:11+00:00 Russell King (Oracle) rmk+kernel@armlinux.org.uk 2024-03-19T15:06:11+00:00 urn:sha1:b42b3ae1699e071b2bf04b0d499b7479334465a3 2024-03-15T21:46:54+00:00 Linus Torvalds torvalds@linux-foundation.org 2024-03-15T21:46:54+00:00 urn:sha1:c8e769961668ef56acabc67f040c58ed769c57e4 Pull crypto updates from Herbert Xu: "API: - Avoid unnecessary copying in scomp for trivial SG lists Algorithms: - Optimise NEON CCM implementation on ARM64 Drivers: - Add queue stop/query debugfs support in hisilicon/qm - Intel qat updates and cleanups" * tag 'v6.9-p1' of git://git.kernel.org/pub/scm/linux/kernel/git/herbert/crypto-2.6: (79 commits) Revert "crypto: remove CONFIG_CRYPTO_STATS" crypto: scomp - remove memcpy if sg_nents is 1 and pages are lowmem crypto: tcrypt - add ffdhe2048(dh) test crypto: iaa - fix the missing CRYPTO_ALG_ASYNC in cra_flags crypto: hisilicon/zip - fix the missing CRYPTO_ALG_ASYNC in cra_flags hwrng: hisi - use dev_err_probe MAINTAINERS: Remove T Ambarus from few mchp entries crypto: iaa - Fix comp/decomp delay statistics crypto: iaa - Fix async_disable descriptor leak dt-bindings: rng: atmel,at91-trng: add sam9x7 TRNG dt-bindings: crypto: add sam9x7 in Atmel TDES dt-bindings: crypto: add sam9x7 in Atmel SHA dt-bindings: crypto: add sam9x7 in Atmel AES crypto: remove CONFIG_CRYPTO_STATS crypto: dh - Make public key test FIPS-only crypto: rockchip - fix to check return value crypto: jitter - fix CRYPTO_JITTERENTROPY help text crypto: qat - make ring to service map common for QAT GEN4 crypto: qat - fix ring to service map for dcc in 420xx crypto: qat - fix ring to service map for dcc in 4xxx ... 2024-03-15T19:29:57+00:00 Linus Torvalds torvalds@linux-foundation.org 2024-03-15T19:29:57+00:00 urn:sha1:3c5d127fb5aa96e89875fcc92182bc1eacfef3af Pull MTD updates from Miquel Raynal: "MTD: - The Carillo Ranch driver has been removed - Top level mtd bindings have received a couple of improvements (references, selects) - The ssfdc driver received few minor adjustments - The usual load of misc/small improvements and fixes Raw NAND: - The main series brought is an update of the Broadcom support to support all BCMBCA SoCs and their specificity (ECC, write protection, configuration straps), plus a few misc fixes and changes in the main driver. Device tree updates are also part of this PR, initially because of a misunderstanding on my side. - The STM32_FMC2 controller driver is also upgraded to properly support MP1 and MP25 SoCs. - A new compatible is added for an Atmel flavor. - Among all these feature changes, there is as well a load of continuous read related fixes, avoiding more corner conditions and clarifying the logic. Finally a few miscellaneous fixes are made to the core, the lpx32xx_mlc, fsl_lbc, Meson and Atmel controller driver, as well as final one in the Hynix vendor driver. SPI-NAND: - The ESMT support has been extended to match 5 bytes ID to avoid collisions. Winbond support on its side receives support for W25N04KV chips. SPI NOR: - SPI NOR gets the non uniform erase code cleaned. We stopped using bitmasks for erase types and flags, and instead introduced dedicated members. We then passed the SPI NOR erase map to MTD. Users can now determine the erase regions and make informed decisions on partitions size. - An optional interrupt property is now described in the bindings" * tag 'mtd/for-6.9' of git://git.kernel.org/pub/scm/linux/kernel/git/mtd/linux: (50 commits) mtd: rawnand: Ensure continuous reads are well disabled mtd: rawnand: Constrain even more when continuous reads are enabled mtd: rawnand: brcmnand: Add support for getting ecc setting from strap mtd: rawnand: brcmnand: fix sparse warnings mtd: nand: raw: atmel: Fix comment in timings preparation mtd: rawnand: Ensure all continuous terms are always in sync mtd: rawnand: Add a helper for calculating a page index mtd: rawnand: Fix and simplify again the continuous read derivations mtd: rawnand: hynix: remove @nand_technology kernel-doc description dt-bindings: atmel-nand: add microchip,sam9x7-pmecc mtd: rawnand: brcmnand: Support write protection setting from dts mtd: rawnand: brcmnand: Add BCMBCA read data bus interface mtd: rawnand: brcmnand: Rename bcm63138 nand driver arm64: dts: broadcom: bcmbca: Update router boards arm64: dts: broadcom: bcmbca: Add NAND controller node ARM: dts: broadcom: bcmbca: Add NAND controller node mtd: spi-nor: core: correct type of i mtd: spi-nor: core: set mtd->eraseregions for non-uniform erase map mtd: spi-nor: core: get rid of SNOR_OVERLAID_REGION flag mtd: spi-nor: core: get rid of SNOR_LAST_REGION flag ... 2024-03-15T01:03:09+00:00 Linus Torvalds torvalds@linux-foundation.org 2024-03-15T01:03:09+00:00 urn:sha1:e5eb28f6d1afebed4bb7d740a797d0390bd3a357 Pull non-MM updates from Andrew Morton: - Kuan-Wei Chiu has developed the well-named series "lib min_heap: Min heap optimizations". - Kuan-Wei Chiu has also sped up the library sorting code in the series "lib/sort: Optimize the number of swaps and comparisons". - Alexey Gladkov has added the ability for code running within an IPC namespace to alter its IPC and MQ limits. The series is "Allow to change ipc/mq sysctls inside ipc namespace". - Geert Uytterhoeven has contributed some dhrystone maintenance work in the series "lib: dhry: miscellaneous cleanups". - Ryusuke Konishi continues nilfs2 maintenance work in the series "nilfs2: eliminate kmap and kmap_atomic calls" "nilfs2: fix kernel bug at submit_bh_wbc()" - Nathan Chancellor has updated our build tools requirements in the series "Bump the minimum supported version of LLVM to 13.0.1". - Muhammad Usama Anjum continues with the selftests maintenance work in the series "selftests/mm: Improve run_vmtests.sh". - Oleg Nesterov has done some maintenance work against the signal code in the series "get_signal: minor cleanups and fix". Plus the usual shower of singleton patches in various parts of the tree. Please see the individual changelogs for details. * tag 'mm-nonmm-stable-2024-03-14-09-36' of git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm: (77 commits) nilfs2: prevent kernel bug at submit_bh_wbc() nilfs2: fix failure to detect DAT corruption in btree and direct mappings ocfs2: enable ocfs2_listxattr for special files ocfs2: remove SLAB_MEM_SPREAD flag usage assoc_array: fix the return value in assoc_array_insert_mid_shortcut() buildid: use kmap_local_page() watchdog/core: remove sysctl handlers from public header nilfs2: use div64_ul() instead of do_div() mul_u64_u64_div_u64: increase precision by conditionally swapping a and b kexec: copy only happens before uchunk goes to zero get_signal: don't initialize ksig->info if SIGNAL_GROUP_EXIT/group_exec_task get_signal: hide_si_addr_tag_bits: fix the usage of uninitialized ksig get_signal: don't abuse ksig->info.si_signo and ksig->sig const_structs.checkpatch: add device_type Normalise "name (ad@dr)" MODULE_AUTHORs to "name <ad@dr>" dyndbg: replace kstrdup() + strchr() with kstrdup_and_replace() list: leverage list_is_head() for list_entry_is_head() nilfs2: MAINTAINERS: drop unreachable project mirror site smp: make __smp_processor_id() 0-argument macro fat: fix uninitialized field in nostale filehandles ... 2024-03-15T00:43:30+00:00 Linus Torvalds torvalds@linux-foundation.org 2024-03-15T00:43:30+00:00 urn:sha1:902861e34c401696ed9ad17a54c8790e7e8e3069 Pull MM updates from Andrew Morton: - Sumanth Korikkar has taught s390 to allocate hotplug-time page frames from hotplugged memory rather than only from main memory. Series "implement "memmap on memory" feature on s390". - More folio conversions from Matthew Wilcox in the series "Convert memcontrol charge moving to use folios" "mm: convert mm counter to take a folio" - Chengming Zhou has optimized zswap's rbtree locking, providing significant reductions in system time and modest but measurable reductions in overall runtimes. The series is "mm/zswap: optimize the scalability of zswap rb-tree". - Chengming Zhou has also provided the series "mm/zswap: optimize zswap lru list" which provides measurable runtime benefits in some swap-intensive situations. - And Chengming Zhou further optimizes zswap in the series "mm/zswap: optimize for dynamic zswap_pools". Measured improvements are modest. - zswap cleanups and simplifications from Yosry Ahmed in the series "mm: zswap: simplify zswap_swapoff()". - In the series "Add DAX ABI for memmap_on_memory", Vishal Verma has contributed several DAX cleanups as well as adding a sysfs tunable to control the memmap_on_memory setting when the dax device is hotplugged as system memory. - Johannes Weiner has added the large series "mm: zswap: cleanups", which does that. - More DAMON work from SeongJae Park in the series "mm/damon: make DAMON debugfs interface deprecation unignorable" "selftests/damon: add more tests for core functionalities and corner cases" "Docs/mm/damon: misc readability improvements" "mm/damon: let DAMOS feeds and tame/auto-tune itself" - In the series "mm/mempolicy: weighted interleave mempolicy and sysfs extension" Rakie Kim has developed a new mempolicy interleaving policy wherein we allocate memory across nodes in a weighted fashion rather than uniformly. This is beneficial in heterogeneous memory environments appearing with CXL. - Christophe Leroy has contributed some cleanup and consolidation work against the ARM pagetable dumping code in the series "mm: ptdump: Refactor CONFIG_DEBUG_WX and check_wx_pages debugfs attribute". - Luis Chamberlain has added some additional xarray selftesting in the series "test_xarray: advanced API multi-index tests". - Muhammad Usama Anjum has reworked the selftest code to make its human-readable output conform to the TAP ("Test Anything Protocol") format. Amongst other things, this opens up the use of third-party tools to parse and process out selftesting results. - Ryan Roberts has added fork()-time PTE batching of THP ptes in the series "mm/memory: optimize fork() with PTE-mapped THP". Mainly targeted at arm64, this significantly speeds up fork() when the process has a large number of pte-mapped folios. - David Hildenbrand also gets in on the THP pte batching game in his series "mm/memory: optimize unmap/zap with PTE-mapped THP". It implements batching during munmap() and other pte teardown situations. The microbenchmark improvements are nice. - And in the series "Transparent Contiguous PTEs for User Mappings" Ryan Roberts further utilizes arm's pte's contiguous bit ("contpte mappings"). Kernel build times on arm64 improved nicely. Ryan's series "Address some contpte nits" provides some followup work. - In the series "mm/hugetlb: Restore the reservation" Breno Leitao has fixed an obscure hugetlb race which was causing unnecessary page faults. He has also added a reproducer under the selftest code. - In the series "selftests/mm: Output cleanups for the compaction test", Mark Brown did what the title claims. - Kinsey Ho has added the series "mm/mglru: code cleanup and refactoring". - Even more zswap material from Nhat Pham. The series "fix and extend zswap kselftests" does as claimed. - In the series "Introduce cpu_dcache_is_aliasing() to fix DAX regression" Mathieu Desnoyers has cleaned up and fixed rather a mess in our handling of DAX on archiecctures which have virtually aliasing data caches. The arm architecture is the main beneficiary. - Lokesh Gidra's series "per-vma locks in userfaultfd" provides dramatic improvements in worst-case mmap_lock hold times during certain userfaultfd operations. - Some page_owner enhancements and maintenance work from Oscar Salvador in his series "page_owner: print stacks and their outstanding allocations" "page_owner: Fixup and cleanup" - Uladzislau Rezki has contributed some vmalloc scalability improvements in his series "Mitigate a vmap lock contention". It realizes a 12x improvement for a certain microbenchmark. - Some kexec/crash cleanup work from Baoquan He in the series "Split crash out from kexec and clean up related config items". - Some zsmalloc maintenance work from Chengming Zhou in the series "mm/zsmalloc: fix and optimize objects/page migration" "mm/zsmalloc: some cleanup for get/set_zspage_mapping()" - Zi Yan has taught the MM to perform compaction on folios larger than order=0. This a step along the path to implementaton of the merging of large anonymous folios. The series is named "Enable >0 order folio memory compaction". - Christoph Hellwig has done quite a lot of cleanup work in the pagecache writeback code in his series "convert write_cache_pages() to an iterator". - Some modest hugetlb cleanups and speedups in Vishal Moola's series "Handle hugetlb faults under the VMA lock". - Zi Yan has changed the page splitting code so we can split huge pages into sizes other than order-0 to better utilize large folios. The series is named "Split a folio to any lower order folios". - David Hildenbrand has contributed the series "mm: remove total_mapcount()", a cleanup. - Matthew Wilcox has sought to improve the performance of bulk memory freeing in his series "Rearrange batched folio freeing". - Gang Li's series "hugetlb: parallelize hugetlb page init on boot" provides large improvements in bootup times on large machines which are configured to use large numbers of hugetlb pages. - Matthew Wilcox's series "PageFlags cleanups" does that. - Qi Zheng's series "minor fixes and supplement for ptdesc" does that also. S390 is affected. - Cleanups to our pagemap utility functions from Peter Xu in his series "mm/treewide: Replace pXd_large() with pXd_leaf()". - Nico Pache has fixed a few things with our hugepage selftests in his series "selftests/mm: Improve Hugepage Test Handling in MM Selftests". - Also, of course, many singleton patches to many things. Please see the individual changelogs for details. * tag 'mm-stable-2024-03-13-20-04' of git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm: (435 commits) mm/zswap: remove the memcpy if acomp is not sleepable crypto: introduce: acomp_is_async to expose if comp drivers might sleep memtest: use {READ,WRITE}_ONCE in memory scanning mm: prohibit the last subpage from reusing the entire large folio mm: recover pud_leaf() definitions in nopmd case selftests/mm: skip the hugetlb-madvise tests on unmet hugepage requirements selftests/mm: skip uffd hugetlb tests with insufficient hugepages selftests/mm: dont fail testsuite due to a lack of hugepages mm/huge_memory: skip invalid debugfs new_order input for folio split mm/huge_memory: check new folio order when split a folio mm, vmscan: retry kswapd's priority loop with cache_trim_mode off on failure mm: add an explicit smp_wmb() to UFFDIO_CONTINUE mm: fix list corruption in put_pages_list mm: remove folio from deferred split list before uncharging it filemap: avoid unnecessary major faults in filemap_fault() mm,page_owner: drop unnecessary check mm,page_owner: check for null stack_record before bumping its refcount mm: swap: fix race between free_swap_and_cache() and swapoff() mm/treewide: align up pXd_leaf() retval across archs mm/treewide: drop pXd_large() ... 2024-03-14T23:04:16+00:00 William Zhang william.zhang@broadcom.com 2024-02-23T03:47:52+00:00 urn:sha1:d42d8e82eb3bd0030d1f8c1c322c33767ac663ae Add support for Broadcom STB NAND controller in BCMBCA ARMv7 chip dts files. Signed-off-by: William Zhang <william.zhang@broadcom.com> Reviewed-by: David Regan <dregan@broadcom.com> Signed-off-by: Miquel Raynal <miquel.raynal@bootlin.com> Acked-by: Florian Fainelli <florian.fainelli@broadcom.com> Link: https://lore.kernel.org/linux-mtd/20240223034758.13753-8-william.zhang@broadcom.com 2024-03-13T19:03:57+00:00 Linus Torvalds torvalds@linux-foundation.org 2024-03-13T19:03:57+00:00 urn:sha1:259f7d5e2baf87fcbb4fabc46526c9c47fed1914 Pull thermal control updates from Rafael Wysocki: "These mostly change the thermal core in a few ways allowing thermal drivers to be simplified, in particular in their removal and failing probe handling parts that are notoriously prone to errors, and propagate the changes to several drivers. Apart from that, support for a new platform is added (Intel Lunar Lake-M), some bugs are fixed and some code is cleaned up, as usual. Specifics: - Store zone trips table and zone operations directly in struct thermal_zone_device (Rafael Wysocki) - Fix up flex array initialization during thermal zone device registration (Nathan Chancellor) - Rework writable trip points handling in the thermal core and several drivers (Rafael Wysocki) - Thermal core code cleanups (Dan Carpenter, Flavio Suligoi) - Use thermal zone accessor functions in the int340x Intel thermal driver (Rafael Wysocki) - Add Lunar Lake-M PCI ID to the int340x Intel thermal driver (Srinivas Pandruvada) - Minor fixes for thermal governors (Rafael Wysocki, Di Shen) - Trip point handling fixes for the iwlwifi wireless driver (Rafael Wysocki) - Code cleanups (Rafael J. Wysocki, AngeloGioacchino Del Regno)" * tag 'thermal-6.9-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm: (29 commits) thermal: core: remove unnecessary check in trip_point_hyst_store() thermal: intel: int340x_thermal: Use thermal zone accessor functions thermal: core: Remove excess empty line from a comment thermal: int340x: processor_thermal: Add Lunar Lake-M PCI ID thermal: core: Eliminate writable trip points masks thermal: of: Set THERMAL_TRIP_FLAG_RW_TEMP directly thermal: imx: Set THERMAL_TRIP_FLAG_RW_TEMP directly wifi: iwlwifi: mvm: Set THERMAL_TRIP_FLAG_RW_TEMP directly mlxsw: core_thermal: Set THERMAL_TRIP_FLAG_RW_TEMP directly thermal: intel: Set THERMAL_TRIP_FLAG_RW_TEMP directly thermal: core: Drop the .set_trip_hyst() thermal zone operation thermal: core: Add flags to struct thermal_trip thermal: core: Move initial num_trips assignment before memcpy() thermal: Get rid of CONFIG_THERMAL_WRITABLE_TRIPS thermal: intel: Adjust ops handling during thermal zone registration thermal: ACPI: Constify acpi_thermal_zone_ops thermal: core: Store zone ops in struct thermal_zone_device thermal: intel: Discard trip tables after zone registration thermal: ACPI: Discard trips table after zone registration thermal: core: Store zone trips table in struct thermal_zone_device ... 2024-03-13T00:44:08+00:00 Linus Torvalds torvalds@linux-foundation.org 2024-03-13T00:44:08+00:00 urn:sha1:9187210eee7d87eea37b45ea93454a88681894a4 Pull networking updates from Jakub Kicinski: "Core & protocols: - Large effort by Eric to lower rtnl_lock pressure and remove locks: - Make commonly used parts of rtnetlink (address, route dumps etc) lockless, protected by RCU instead of rtnl_lock. - Add a netns exit callback which already holds rtnl_lock, allowing netns exit to take rtnl_lock once in the core instead of once for each driver / callback. - Remove locks / serialization in the socket diag interface. - Remove 6 calls to synchronize_rcu() while holding rtnl_lock. - Remove the dev_base_lock, depend on RCU where necessary. - Support busy polling on a per-epoll context basis. Poll length and budget parameters can be set independently of system defaults. - Introduce struct net_hotdata, to make sure read-mostly global config variables fit in as few cache lines as possible. - Add optional per-nexthop statistics to ease monitoring / debug of ECMP imbalance problems. - Support TCP_NOTSENT_LOWAT in MPTCP. - Ensure that IPv6 temporary addresses' preferred lifetimes are long enough, compared to other configured lifetimes, and at least 2 sec. - Support forwarding of ICMP Error messages in IPSec, per RFC 4301. - Add support for the independent control state machine for bonding per IEEE 802.1AX-2008 5.4.15 in addition to the existing coupled control state machine. - Add "network ID" to MCTP socket APIs to support hosts with multiple disjoint MCTP networks. - Re-use the mono_delivery_time skbuff bit for packets which user space wants to be sent at a specified time. Maintain the timing information while traversing veth links, bridge etc. - Take advantage of MSG_SPLICE_PAGES for RxRPC DATA and ACK packets. - Simplify many places iterating over netdevs by using an xarray instead of a hash table walk (hash table remains in place, for use on fastpaths). - Speed up scanning for expired routes by keeping a dedicated list. - Speed up "generic" XDP by trying harder to avoid large allocations. - Support attaching arbitrary metadata to netconsole messages. Things we sprinkled into general kernel code: - Enforce VM_IOREMAP flag and range in ioremap_page_range and introduce VM_SPARSE kind and vm_area_[un]map_pages (used by bpf_arena). - Rework selftest harness to enable the use of the full range of ksft exit code (pass, fail, skip, xfail, xpass). Netfilter: - Allow userspace to define a table that is exclusively owned by a daemon (via netlink socket aliveness) without auto-removing this table when the userspace program exits. Such table gets marked as orphaned and a restarting management daemon can re-attach/regain ownership. - Speed up element insertions to nftables' concatenated-ranges set type. Compact a few related data structures. BPF: - Add BPF token support for delegating a subset of BPF subsystem functionality from privileged system-wide daemons such as systemd through special mount options for userns-bound BPF fs to a trusted & unprivileged application. - Introduce bpf_arena which is sparse shared memory region between BPF program and user space where structures inside the arena can have pointers to other areas of the arena, and pointers work seamlessly for both user-space programs and BPF programs. - Introduce may_goto instruction that is a contract between the verifier and the program. The verifier allows the program to loop assuming it's behaving well, but reserves the right to terminate it. - Extend the BPF verifier to enable static subprog calls in spin lock critical sections. - Support registration of struct_ops types from modules which helps projects like fuse-bpf that seeks to implement a new struct_ops type. - Add support for retrieval of cookies for perf/kprobe multi links. - Support arbitrary TCP SYN cookie generation / validation in the TC layer with BPF to allow creating SYN flood handling in BPF firewalls. - Add code generation to inline the bpf_kptr_xchg() helper which improves performance when stashing/popping the allocated BPF objects. Wireless: - Add SPP (signaling and payload protected) AMSDU support. - Support wider bandwidth OFDMA, as required for EHT operation. Driver API: - Major overhaul of the Energy Efficient Ethernet internals to support new link modes (2.5GE, 5GE), share more code between drivers (especially those using phylib), and encourage more uniform behavior. Convert and clean up drivers. - Define an API for querying per netdev queue statistics from drivers. - IPSec: account in global stats for fully offloaded sessions. - Create a concept of Ethernet PHY Packages at the Device Tree level, to allow parameterizing the existing PHY package code. - Enable Rx hashing (RSS) on GTP protocol fields. Misc: - Improvements and refactoring all over networking selftests. - Create uniform module aliases for TC classifiers, actions, and packet schedulers to simplify creating modprobe policies. - Address all missing MODULE_DESCRIPTION() warnings in networking. - Extend the Netlink descriptions in YAML to cover message encapsulation or "Netlink polymorphism", where interpretation of nested attributes depends on link type, classifier type or some other "class type". Drivers: - Ethernet high-speed NICs: - Add a new driver for Marvell's Octeon PCI Endpoint NIC VF. - Intel (100G, ice, idpf): - support E825-C devices - nVidia/Mellanox: - support devices with one port and multiple PCIe links - Broadcom (bnxt): - support n-tuple filters - support configuring the RSS key - Wangxun (ngbe/txgbe): - implement irq_domain for TXGBE's sub-interrupts - Pensando/AMD: - support XDP - optimize queue submission and wakeup handling (+17% bps) - optimize struct layout, saving 28% of memory on queues - Ethernet NICs embedded and virtual: - Google cloud vNIC: - refactor driver to perform memory allocations for new queue config before stopping and freeing the old queue memory - Synopsys (stmmac): - obey queueMaxSDU and implement counters required by 802.1Qbv - Renesas (ravb): - support packet checksum offload - suspend to RAM and runtime PM support - Ethernet switches: - nVidia/Mellanox: - support for nexthop group statistics - Microchip: - ksz8: implement PHY loopback - add support for KSZ8567, a 7-port 10/100Mbps switch - PTP: - New driver for RENESAS FemtoClock3 Wireless clock generator. - Support OCP PTP cards designed and built by Adva. - CAN: - Support recvmsg() flags for own, local and remote traffic on CAN BCM sockets. - Support for esd GmbH PCIe/402 CAN device family. - m_can: - Rx/Tx submission coalescing - wake on frame Rx - WiFi: - Intel (iwlwifi): - enable signaling and payload protected A-MSDUs - support wider-bandwidth OFDMA - support for new devices - bump FW API to 89 for AX devices; 90 for BZ/SC devices - MediaTek (mt76): - mt7915: newer ADIE version support - mt7925: radio temperature sensor support - Qualcomm (ath11k): - support 6 GHz station power modes: Low Power Indoor (LPI), Standard Power) SP and Very Low Power (VLP) - QCA6390 & WCN6855: support 2 concurrent station interfaces - QCA2066 support - Qualcomm (ath12k): - refactoring in preparation for Multi-Link Operation (MLO) support - 1024 Block Ack window size support - firmware-2.bin support - support having multiple identical PCI devices (firmware needs to have ATH12K_FW_FEATURE_MULTI_QRTR_ID) - QCN9274: support split-PHY devices - WCN7850: enable Power Save Mode in station mode - WCN7850: P2P support - RealTek: - rtw88: support for more rtw8811cu and rtw8821cu devices - rtw89: support SCAN_RANDOM_SN and SET_SCAN_DWELL - rtlwifi: speed up USB firmware initialization - rtwl8xxxu: - RTL8188F: concurrent interface support - Channel Switch Announcement (CSA) support in AP mode - Broadcom (brcmfmac): - per-vendor feature support - per-vendor SAE password setup - DMI nvram filename quirk for ACEPC W5 Pro" * tag 'net-next-6.9' of git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net-next: (2255 commits) nexthop: Fix splat with CONFIG_DEBUG_PREEMPT=y nexthop: Fix out-of-bounds access during attribute validation nexthop: Only parse NHA_OP_FLAGS for dump messages that require it nexthop: Only parse NHA_OP_FLAGS for get messages that require it bpf: move sleepable flag from bpf_prog_aux to bpf_prog bpf: hardcode BPF_PROG_PACK_SIZE to 2MB * num_possible_nodes() selftests/bpf: Add kprobe multi triggering benchmarks ptp: Move from simple ida to xarray vxlan: Remove generic .ndo_get_stats64 vxlan: Do not alloc tstats manually devlink: Add comments to use netlink gen tool nfp: flower: handle acti_netdevs allocation failure net/packet: Add getsockopt support for PACKET_COPY_THRESH net/netlink: Add getsockopt support for NETLINK_LISTEN_ALL_NSID selftests/bpf: Add bpf_arena_htab test. selftests/bpf: Add bpf_arena_list test. selftests/bpf: Add unit tests for bpf_arena_alloc/free_pages bpf: Add helper macro bpf_addr_space_cast() libbpf: Recognize __arena global variables. bpftool: Recognize arena map type ...