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* Merge tag 'trace-v6.0' of ↵Linus Torvalds2022-08-052-6/+40
|\ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | git://git.kernel.org/pub/scm/linux/kernel/git/rostedt/linux-trace Pull tracing updates from Steven Rostedt: - Runtime verification infrastructure This is the biggest change here. It introduces the runtime verification that is necessary for running Linux on safety critical systems. It allows for deterministic automata models to be inserted into the kernel that will attach to tracepoints, where the information on these tracepoints will move the model from state to state. If a state is encountered that does not belong to the model, it will then activate a given reactor, that could just inform the user or even panic the kernel (for which safety critical systems will detect and can recover from). - Two monitor models are also added: Wakeup In Preemptive (WIP - not to be confused with "work in progress"), and Wakeup While Not Running (WWNR). - Added __vstring() helper to the TRACE_EVENT() macro to replace several vsnprintf() usages that were all doing it wrong. - eprobes now can have their event autogenerated when the event name is left off. - The rest is various cleanups and fixes. * tag 'trace-v6.0' of git://git.kernel.org/pub/scm/linux/kernel/git/rostedt/linux-trace: (50 commits) rv: Unlock on error path in rv_unregister_reactor() tracing: Use alignof__(struct {type b;}) instead of offsetof() tracing/eprobe: Show syntax error logs in error_log file scripts/tracing: Fix typo 'the the' in comment tracepoints: It is CONFIG_TRACEPOINTS not CONFIG_TRACEPOINT tracing: Use free_trace_buffer() in allocate_trace_buffers() tracing: Use a struct alignof to determine trace event field alignment rv/reactor: Add the panic reactor rv/reactor: Add the printk reactor rv/monitor: Add the wwnr monitor rv/monitor: Add the wip monitor rv/monitor: Add the wip monitor skeleton created by dot2k Documentation/rv: Add deterministic automata instrumentation documentation Documentation/rv: Add deterministic automata monitor synthesis documentation tools/rv: Add dot2k Documentation/rv: Add deterministic automaton documentation tools/rv: Add dot2c Documentation/rv: Add a basic documentation rv/include: Add instrumentation helper functions rv/include: Add deterministic automata monitor definition via C macros ...
| * tracing: Add example and documentation for new __vstring() macroSteven Rostedt (Google)2022-07-242-6/+40
| | | | | | | | | | | | | | | | | | Update the sample trace events to include an example that uses the new __vstring() helpers for TRACE_EVENTS. Link: https://lkml.kernel.org/r/20220715175555.16375a3b@gandalf.local.home Signed-off-by: Steven Rostedt (Google) <rostedt@goodmis.org>
* | Merge tag 'spdx-6.0-rc1' of ↵Linus Torvalds2022-08-041-13/+1
|\ \ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/spdx Pull SPDX updates from Greg KH: "Here is the set of SPDX comment updates for 6.0-rc1. Nothing huge here, just a number of updated SPDX license tags and cleanups based on the review of a number of common patterns in GPLv2 boilerplate text. Also included in here are a few other minor updates, two USB files, and one Documentation file update to get the SPDX lines correct. All of these have been in the linux-next tree for a very long time" * tag 'spdx-6.0-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/spdx: (28 commits) Documentation: samsung-s3c24xx: Add blank line after SPDX directive x86/crypto: Remove stray comment terminator treewide: Replace GPLv2 boilerplate/reference with SPDX - gpl-2.0_406.RULE treewide: Replace GPLv2 boilerplate/reference with SPDX - gpl-2.0_398.RULE treewide: Replace GPLv2 boilerplate/reference with SPDX - gpl-2.0_391.RULE treewide: Replace GPLv2 boilerplate/reference with SPDX - gpl-2.0_390.RULE treewide: Replace GPLv2 boilerplate/reference with SPDX - gpl-2.0_385.RULE treewide: Replace GPLv2 boilerplate/reference with SPDX - gpl-2.0_320.RULE treewide: Replace GPLv2 boilerplate/reference with SPDX - gpl-2.0_319.RULE treewide: Replace GPLv2 boilerplate/reference with SPDX - gpl-2.0_318.RULE treewide: Replace GPLv2 boilerplate/reference with SPDX - gpl-2.0_298.RULE treewide: Replace GPLv2 boilerplate/reference with SPDX - gpl-2.0_292.RULE treewide: Replace GPLv2 boilerplate/reference with SPDX - gpl-2.0_179.RULE treewide: Replace GPLv2 boilerplate/reference with SPDX - gpl-2.0_168.RULE (part 2) treewide: Replace GPLv2 boilerplate/reference with SPDX - gpl-2.0_168.RULE (part 1) treewide: Replace GPLv2 boilerplate/reference with SPDX - gpl-2.0_160.RULE treewide: Replace GPLv2 boilerplate/reference with SPDX - gpl-2.0_152.RULE treewide: Replace GPLv2 boilerplate/reference with SPDX - gpl-2.0_149.RULE treewide: Replace GPLv2 boilerplate/reference with SPDX - gpl-2.0_147.RULE treewide: Replace GPLv2 boilerplate/reference with SPDX - gpl-2.0_133.RULE ...
| * | treewide: Replace GPLv2 boilerplate/reference with SPDX - gpl-2.0_168.RULE ↵Thomas Gleixner2022-06-101-13/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | (part 2) Based on the normalized pattern: this program is free software you may redistribute it and/or modify it under the terms of the gnu general public license as published by the free software foundation version 2 of the license the software is provided as is without warranty of any kind express or implied including but not limited to the warranties of merchantability fitness for a particular purpose and noninfringement in no event shall the authors or copyright holders be liable for any claim damages or other liability whether in an action of contract tort or otherwise arising from out of or in connection with the software or the use or other dealings in the software extracted by the scancode license scanner the SPDX license identifier GPL-2.0-only has been chosen to replace the boilerplate/reference. Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
* | | Merge https://git.kernel.org/pub/scm/linux/kernel/git/bpf/bpf-nextJakub Kicinski2022-07-229-14/+29
|\ \ \ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Daniel Borkmann says: ==================== bpf-next 2022-07-22 We've added 73 non-merge commits during the last 12 day(s) which contain a total of 88 files changed, 3458 insertions(+), 860 deletions(-). The main changes are: 1) Implement BPF trampoline for arm64 JIT, from Xu Kuohai. 2) Add ksyscall/kretsyscall section support to libbpf to simplify tracing kernel syscalls through kprobe mechanism, from Andrii Nakryiko. 3) Allow for livepatch (KLP) and BPF trampolines to attach to the same kernel function, from Song Liu & Jiri Olsa. 4) Add new kfunc infrastructure for netfilter's CT e.g. to insert and change entries, from Kumar Kartikeya Dwivedi & Lorenzo Bianconi. 5) Add a ksym BPF iterator to allow for more flexible and efficient interactions with kernel symbols, from Alan Maguire. 6) Bug fixes in libbpf e.g. for uprobe binary path resolution, from Dan Carpenter. 7) Fix BPF subprog function names in stack traces, from Alexei Starovoitov. 8) libbpf support for writing custom perf event readers, from Jon Doron. 9) Switch to use SPDX tag for BPF helper man page, from Alejandro Colomar. 10) Fix xsk send-only sockets when in busy poll mode, from Maciej Fijalkowski. 11) Reparent BPF maps and their charging on memcg offlining, from Roman Gushchin. 12) Multiple follow-up fixes around BPF lsm cgroup infra, from Stanislav Fomichev. 13) Use bootstrap version of bpftool where possible to speed up builds, from Pu Lehui. 14) Cleanup BPF verifier's check_func_arg() handling, from Joanne Koong. 15) Make non-prealloced BPF map allocations low priority to play better with memcg limits, from Yafang Shao. 16) Fix BPF test runner to reject zero-length data for skbs, from Zhengchao Shao. 17) Various smaller cleanups and improvements all over the place. * https://git.kernel.org/pub/scm/linux/kernel/git/bpf/bpf-next: (73 commits) bpf: Simplify bpf_prog_pack_[size|mask] bpf: Support bpf_trampoline on functions with IPMODIFY (e.g. livepatch) bpf, x64: Allow to use caller address from stack ftrace: Allow IPMODIFY and DIRECT ops on the same function ftrace: Add modify_ftrace_direct_multi_nolock bpf/selftests: Fix couldn't retrieve pinned program in xdp veth test bpf: Fix build error in case of !CONFIG_DEBUG_INFO_BTF selftests/bpf: Fix test_verifier failed test in unprivileged mode selftests/bpf: Add negative tests for new nf_conntrack kfuncs selftests/bpf: Add tests for new nf_conntrack kfuncs selftests/bpf: Add verifier tests for trusted kfunc args net: netfilter: Add kfuncs to set and change CT status net: netfilter: Add kfuncs to set and change CT timeout net: netfilter: Add kfuncs to allocate and insert CT net: netfilter: Deduplicate code in bpf_{xdp,skb}_ct_lookup bpf: Add documentation for kfuncs bpf: Add support for forcing kfunc args to be trusted bpf: Switch to new kfunc flags infrastructure tools/resolve_btfids: Add support for 8-byte BTF sets bpf: Introduce 8-byte BTF set ... ==================== Link: https://lore.kernel.org/r/20220722221218.29943-1-daniel@iogearbox.net Signed-off-by: Jakub Kicinski <kuba@kernel.org>
| * | | samples: bpf: Fix cross-compiling error by using bootstrap bpftoolPu Lehui2022-07-151-6/+4
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Currently, when cross compiling bpf samples, the host side cannot use arch-specific bpftool to generate vmlinux.h or skeleton. Since samples/bpf use bpftool for vmlinux.h, skeleton, and static linking only, we can use lightweight bootstrap version of bpftool to handle these, and it's always host-native. Suggested-by: Andrii Nakryiko <andrii@kernel.org> Signed-off-by: Pu Lehui <pulehui@huawei.com> Signed-off-by: Andrii Nakryiko <andrii@kernel.org> Link: https://lore.kernel.org/bpf/20220714024612.944071-2-pulehui@huawei.com
| * | | samples: bpf: Replace sizeof(arr)/sizeof(arr[0]) with ARRAY_SIZELinkui Xiao2022-07-136-6/+12
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | The ARRAY_SIZE macro is more compact and more formal in linux source. Signed-off-by: Linkui Xiao <xiaolinkui@kylinos.cn> Signed-off-by: Andrii Nakryiko <andrii@kernel.org> Acked-by: Jiri Olsa <jolsa@kernel.org> Link: https://lore.kernel.org/bpf/20220712072302.13761-1-xiaolinkui@kylinos.cn
| * | | samples/bpf: Fix xdp_redirect_map egress devmap progJesper Dangaard Brouer2022-07-112-2/+13
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | LLVM compiler optimized out the memcpy in xdp_redirect_map_egress, which caused the Ethernet source MAC-addr to always be zero when enabling the devmap egress prog via cmdline --load-egress. Issue observed with LLVM version 14.0.0 - Shipped with Fedora 36 on target: x86_64-redhat-linux-gnu. In verbose mode print the source MAC-addr in case xdp_devmap_attached mode is used. Signed-off-by: Jesper Dangaard Brouer <brouer@redhat.com> Signed-off-by: Andrii Nakryiko <andrii@kernel.org> Link: https://lore.kernel.org/bpf/165754826292.575614.5636444052787717159.stgit@firesoul
* | | | Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/netJakub Kicinski2022-07-143-7/+5
|\ \ \ \ | |/ / / |/| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | include/net/sock.h 310731e2f161 ("net: Fix data-races around sysctl_mem.") e70f3c701276 ("Revert "net: set SK_MEM_QUANTUM to 4096"") https://lore.kernel.org/all/20220711120211.7c8b7cba@canb.auug.org.au/ net/ipv4/fib_semantics.c 747c14307214 ("ip: fix dflt addr selection for connected nexthop") d62607c3fe45 ("net: rename reference+tracking helpers") net/tls/tls.h include/net/tls.h 3d8c51b25a23 ("net/tls: Check for errors in tls_device_init") 587903142308 ("tls: create an internal header") Signed-off-by: Jakub Kicinski <kuba@kernel.org>
| * | | Merge tag 'trace-v5.19-rc5' of ↵Linus Torvalds2022-07-123-7/+5
| |\ \ \ | | | |/ | | |/| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | git://git.kernel.org/pub/scm/linux/kernel/git/rostedt/linux-trace Pull tracing fixes from Steven Rostedt: "Fixes and minor clean ups for tracing: - Fix memory leak by reverting what was thought to be a double free. A static tool had gave a false positive that a double free was possible in the error path, but it was actually a different location that confused the static analyzer (and those of us that reviewed it). - Move use of static buffers by ftrace_dump() to a location that can be used by kgdb's ftdump(), as it needs it for the same reasons. - Clarify in the Kconfig description that function tracing has negligible impact on x86, but may have a bit bigger impact on other architectures. - Remove unnecessary extra semicolon in trace event. - Make a local variable static that is used in the fprobes sample - Use KSYM_NAME_LEN for length of function in kprobe sample and get rid of unneeded macro for the same purpose" * tag 'trace-v5.19-rc5' of git://git.kernel.org/pub/scm/linux/kernel/git/rostedt/linux-trace: samples: Use KSYM_NAME_LEN for kprobes fprobe/samples: Make sample_probe static blk-iocost: tracing: atomic64_read(&ioc->vtime_rate) is assigned an extra semicolon ftrace: Be more specific about arch impact when function tracer is enabled tracing: Fix sleeping while atomic in kdb ftdump tracing/histograms: Fix memory leak problem
| | * | samples: Use KSYM_NAME_LEN for kprobesTiezhu Yang2022-07-122-6/+4
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | It is better and enough to use KSYM_NAME_LEN for kprobes in samples, no need to define and use the other values. Link: https://lkml.kernel.org/r/1654651402-21552-1-git-send-email-yangtiezhu@loongson.cn Signed-off-by: Tiezhu Yang <yangtiezhu@loongson.cn> Acked-by: Masami Hiramatsu (Google) <mhiramat@kernel.org> Signed-off-by: Steven Rostedt (Google) <rostedt@goodmis.org>
| | * | fprobe/samples: Make sample_probe staticsunliming2022-07-121-1/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This symbol is not used outside of fprobe_example.c, so marks it static. Fixes the following warning: sparse warnings: (new ones prefixed by >>) >> samples/fprobe/fprobe_example.c:23:15: sparse: sparse: symbol 'sample_probe' was not declared. Should it be static? Link: https://lkml.kernel.org/r/20220606075659.674556-1-sunliming@kylinos.cn Reported-by: kernel test robot <lkp@intel.com> Signed-off-by: sunliming <sunliming@kylinos.cn> Acked-by: Masami Hiramatsu (Google) <mhiramat@kernel.org> Signed-off-by: Steven Rostedt (Google) <rostedt@goodmis.org>
* | | | Merge https://git.kernel.org/pub/scm/linux/kernel/git/bpf/bpf-nextJakub Kicinski2022-07-099-3353/+17
|\ \ \ \ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Daniel Borkmann says: ==================== pull-request: bpf-next 2022-07-09 We've added 94 non-merge commits during the last 19 day(s) which contain a total of 125 files changed, 5141 insertions(+), 6701 deletions(-). The main changes are: 1) Add new way for performing BTF type queries to BPF, from Daniel Müller. 2) Add inlining of calls to bpf_loop() helper when its function callback is statically known, from Eduard Zingerman. 3) Implement BPF TCP CC framework usability improvements, from Jörn-Thorben Hinz. 4) Add LSM flavor for attaching per-cgroup BPF programs to existing LSM hooks, from Stanislav Fomichev. 5) Remove all deprecated libbpf APIs in prep for 1.0 release, from Andrii Nakryiko. 6) Add benchmarks around local_storage to BPF selftests, from Dave Marchevsky. 7) AF_XDP sample removal (given move to libxdp) and various improvements around AF_XDP selftests, from Magnus Karlsson & Maciej Fijalkowski. 8) Add bpftool improvements for memcg probing and bash completion, from Quentin Monnet. 9) Add arm64 JIT support for BPF-2-BPF coupled with tail calls, from Jakub Sitnicki. 10) Sockmap optimizations around throughput of UDP transmissions which have been improved by 61%, from Cong Wang. 11) Rework perf's BPF prologue code to remove deprecated functions, from Jiri Olsa. 12) Fix sockmap teardown path to avoid sleepable sk_psock_stop, from John Fastabend. 13) Fix libbpf's cleanup around legacy kprobe/uprobe on error case, from Chuang Wang. 14) Fix libbpf's bpf_helpers.h to work with gcc for the case of its sec/pragma macro, from James Hilliard. 15) Fix libbpf's pt_regs macros for riscv to use a0 for RC register, from Yixun Lan. 16) Fix bpftool to show the name of type BPF_OBJ_LINK, from Yafang Shao. * https://git.kernel.org/pub/scm/linux/kernel/git/bpf/bpf-next: (94 commits) selftests/bpf: Fix xdp_synproxy build failure if CONFIG_NF_CONNTRACK=m/n bpf: Correctly propagate errors up from bpf_core_composites_match libbpf: Disable SEC pragma macro on GCC bpf: Check attach_func_proto more carefully in check_return_code selftests/bpf: Add test involving restrict type qualifier bpftool: Add support for KIND_RESTRICT to gen min_core_btf command MAINTAINERS: Add entry for AF_XDP selftests files selftests, xsk: Rename AF_XDP testing app bpf, docs: Remove deprecated xsk libbpf APIs description selftests/bpf: Add benchmark for local_storage RCU Tasks Trace usage libbpf, riscv: Use a0 for RC register libbpf: Remove unnecessary usdt_rel_ip assignments selftests/bpf: Fix few more compiler warnings selftests/bpf: Fix bogus uninitialized variable warning bpftool: Remove zlib feature test from Makefile libbpf: Cleanup the legacy uprobe_event on failed add/attach_event() libbpf: Fix wrong variable used in perf_event_uprobe_open_legacy() libbpf: Cleanup the legacy kprobe_event on failed add/attach_event() selftests/bpf: Add type match test against kernel's task_struct selftests/bpf: Add nested type to type based tests ... ==================== Link: https://lore.kernel.org/r/20220708233145.32365-1-daniel@iogearbox.net Signed-off-by: Jakub Kicinski <kuba@kernel.org>
| * | | | bpf, samples: Remove AF_XDP samplesMagnus Karlsson2022-07-056-3346/+0
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Remove the AF_XDP samples from samples/bpf/ as they are dependent on the AF_XDP support in libbpf. This support has now been removed in the 1.0 release, so these samples cannot be compiled anymore. Please start to use libxdp instead. It is backwards compatible with the AF_XDP support that was offered in libbpf. New samples can be found in the various xdp-project repositories connected to libxdp and by googling. Signed-off-by: Magnus Karlsson <magnus.karlsson@intel.com> Signed-off-by: Daniel Borkmann <daniel@iogearbox.net> Acked-by: Toke Høiland-Jørgensen <toke@redhat.com> Acked-by: Maciej Fijalkowski <maciej.fijalkowski@intel.com> Acked-by: Jesper Dangaard Brouer <brouer@redhat.com> Link: https://lore.kernel.org/bpf/20220630093717.8664-1-magnus.karlsson@gmail.com
| * | | | samples/bpf: fixup some tools to be able to support xdp multibufferAndy Gospodarek2022-06-213-7/+17
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This changes the section name for the bpf program embedded in these files to "xdp.frags" to allow the programs to be loaded on drivers that are using an MTU greater than PAGE_SIZE. Rather than directly accessing the buffers, the packet data is now accessed via xdp helper functions to provide an example for those who may need to write more complex programs. v2: remove new unnecessary variable Signed-off-by: Andy Gospodarek <gospo@broadcom.com> Acked-by: John Fastabend <john.fastabend@gmail.com> Acked-by: Lorenzo Bianconi <lorenzo@kernel.org> Link: https://lore.kernel.org/r/20220621175402.35327-1-gospo@broadcom.com Signed-off-by: Alexei Starovoitov <ast@kernel.org>
* | | | | Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/netJakub Kicinski2022-07-071-0/+7
|\ \ \ \ \ | | |/ / / | |/| | | | | | | | | | | | | | | | | | No conflicts. Signed-off-by: Jakub Kicinski <kuba@kernel.org>
| * | | | fprobe, samples: Add module parameter descriptionsMasami Hiramatsu (Google)2022-06-241-0/+7
| | |/ / | |/| | | | | | | | | | | | | | | | | | | | | | | | | | Add module parameter descriptions for the fprobe_example module. Signed-off-by: Masami Hiramatsu (Google) <mhiramat@kernel.org> Signed-off-by: Andrii Nakryiko <andrii@kernel.org> Link: https://lore.kernel.org/bpf/165602349520.56016.1314423560740428008.stgit@devnote2
* | | | Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/netJakub Kicinski2022-06-231-4/+25
|\| | | | |/ / |/| | | | | | | | | | | No conflicts. Signed-off-by: Jakub Kicinski <kuba@kernel.org>
| * | fprobe, samples: Add use_trace option and show hit/missed counterMasami Hiramatsu (Google)2022-06-171-4/+25
| |/ | | | | | | | | | | | | | | | | | | | | | | Add use_trace option to use trace_printk() instead of pr_info() so that the handler doesn't involve the RCU operations. And show the hit and missed counter so that the user can check how many times the probe handler hit and missed. Signed-off-by: Masami Hiramatsu (Google) <mhiramat@kernel.org> Signed-off-by: Daniel Borkmann <daniel@iogearbox.net> Acked-by: Jiri Olsa <jolsa@kernel.org> Link: https://lore.kernel.org/bpf/165461826247.280167.11939123218334322352.stgit@devnote2
* | samples/bpf: Check detach prog exist or not in xdp_fwdZhengchao Shao2022-06-151-6/+49
| | | | | | | | | | | | | | | | | | Before detach the prog, we should check detach prog exist or not. Signed-off-by: Zhengchao Shao <shaozhengchao@huawei.com> Signed-off-by: Andrii Nakryiko <andrii@kernel.org> Reviewed-by: Toke Høiland-Jørgensen <toke@redhat.com> Link: https://lore.kernel.org/bpf/20220606005425.261967-1-shaozhengchao@huawei.com
* | sample: bpf: xdp_router_ipv4: Allow the kernel to send arp requestsLorenzo Bianconi2022-06-021-0/+9
|/ | | | | | | | | | Forward the packet to the kernel if the gw router mac address is missing in to trigger ARP discovery. Fixes: 85bf1f51691c ("samples: bpf: Convert xdp_router_ipv4 to XDP samples helper") Signed-off-by: Lorenzo Bianconi <lorenzo@kernel.org> Signed-off-by: Andrii Nakryiko <andrii@kernel.org> Link: https://lore.kernel.org/bpf/60bde5496d108089080504f58199bcf1143ea938.1653471558.git.lorenzo@kernel.org
* Merge tag 'drm-next-2022-05-25' of git://anongit.freedesktop.org/drm/drmLinus Torvalds2022-05-253-50/+7
|\ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Pull drm updates from Dave Airlie: "Intel have enabled DG2 on certain SKUs for laptops, AMD has started some new GPU support, msm has user allocated VA controls dma-buf: - add dma_resv_replace_fences - add dma_resv_get_singleton - make dma_excl_fence private core: - EDID parser refactorings - switch drivers to drm_mode_copy/duplicate - DRM managed mutex initialization display-helper: - put HDMI, SCDC, HDCP, DSC and DP into new module gem: - rework fence handling ttm: - rework bulk move handling - add common debugfs for resource managers - convert to kvcalloc format helpers: - support monochrome formats - RGB888, RGB565 to XRGB8888 conversions fbdev: - cfb/sys_imageblit fixes - pagelist corruption fix - create offb platform device - deferred io improvements sysfb: - Kconfig rework - support for VESA mode selection bridge: - conversions to devm_drm_of_get_bridge - conversions to panel_bridge - analogix_dp - autosuspend support - it66121 - audio support - tc358767 - DSI to DPI support - icn6211 - PLL/I2C fixes, DT property - adv7611 - enable DRM_BRIDGE_OP_HPD - anx7625 - fill ELD if no monitor - dw_hdmi - add audio support - lontium LT9211 support, i.MXMP LDB - it6505: Kconfig fix, DPCD set power fix - adv7511 - CEC support for ADV7535 panel: - ltk035c5444t, B133UAN01, NV3052C panel support - DataImage FG040346DSSWBG04 support - st7735r - DT bindings fix - ssd130x - fixes i915: - DG2 laptop PCI-IDs ("motherboard down") - Initial RPL-P PCI IDs - compute engine ABI - DG2 Tile4 support - DG2 CCS clear color compression support - DG2 render/media compression formats support - ATS-M platform info - RPL-S PCI IDs added - Bump ADL-P DMC version to v2.16 - Support static DRRS - Support multiple eDP/LVDS native mode refresh rates - DP HDR support for HSW+ - Lots of display refactoring + fixes - GuC hwconfig support and query - sysfs support for multi-tile - fdinfo per-client gpu utilisation - add geometry subslices query - fix prime mmap with LMEM - fix vm open count and remove vma refcounts - contiguous allocation fixes - steered register write support - small PCI BAR enablement - GuC error capture support - sunset igpu legacy mmap support for newer devices - GuC version 70.1.1 support amdgpu: - Initial SoC21 support - SMU 13.x enablement - SMU 13.0.4 support - ttm_eu cleanups - USB-C, GPUVM updates - TMZ fixes for RV - RAS support for VCN - PM sysfs code cleanup - DC FP rework - extend CG/PG flags to 64-bit - SI dpm lockdep fix - runtime PM fixes amdkfd: - RAS/SVM fixes - TLB flush fixes - CRIU GWS support - ignore bogus MEC signals more efficiently msm: - Fourcc modifier for tiled but not compressed layouts - Support for userspace allocated IOVA (GPU virtual address) - DPU: DSC (Display Stream Compression) support - DP: eDP support - DP: conversion to use drm_bridge and drm_bridge_connector - Merge DPU1 and MDP5 MDSS driver - DPU: writeback support nouveau: - make some structures static - make some variables static - switch to drm_gem_plane_helper_prepare_fb radeon: - misc fixes/cleanups mxsfb: - rework crtc mode setting - LCDIF CRC support etnaviv: - fencing improvements - fix address space collisions - cleanup MMU reference handling gma500: - GEM/GTT improvements - connector handling fixes komeda: - switch to plane reset helper mediatek: - MIPI DSI improvements omapdrm: - GEM improvements qxl: - aarch64 support vc4: - add a CL submission tracepoint - HDMI YUV support - HDMI/clock improvements - drop is_hdmi caching virtio: - remove restriction of non-zero blob types vmwgfx: - support for cursormob and cursorbypass 4 - fence improvements tidss: - reset DISPC on startup solomon: - SPI support - DT improvements sun4i: - allwinner D1 support - drop is_hdmi caching imx: - use swap() instead of open-coding - use devm_platform_ioremap_resource - remove redunant initializations ast: - Displayport support rockchip: - Refactor IOMMU initialisation - make some structures static - replace drm_detect_hdmi_monitor with drm_display_info.is_hdmi - support swapped YUV formats, - clock improvements - rk3568 support - VOP2 support mediatek: - MT8186 support tegra: - debugabillity improvements" * tag 'drm-next-2022-05-25' of git://anongit.freedesktop.org/drm/drm: (1740 commits) drm/i915/dsi: fix VBT send packet port selection for ICL+ drm/i915/uc: Fix undefined behavior due to shift overflowing the constant drm/i915/reg: fix undefined behavior due to shift overflowing the constant drm/i915/gt: Fix use of static in macro mismatch drm/i915/audio: fix audio code enable/disable pipe logging drm/i915: Fix CFI violation with show_dynamic_id() drm/i915: Fix 'mixing different enum types' warnings in intel_display_power.c drm/i915/gt: Fix build error without CONFIG_PM drm/msm/dpu: handle pm_runtime_get_sync() errors in bind path drm/msm/dpu: add DRM_MODE_ROTATE_180 back to supported rotations drm/msm: don't free the IRQ if it was not requested drm/msm/dpu: limit writeback modes according to max_linewidth drm/amd: Don't reset dGPUs if the system is going to s2idle drm/amdgpu: Unmap legacy queue when MES is enabled drm: msm: fix possible memory leak in mdp5_crtc_cursor_set() drm/msm: Fix fb plane offset calculation drm/msm/a6xx: Fix refcount leak in a6xx_gpu_init drm/msm/dsi: don't powerup at modeset time for parade-ps8640 drm/rockchip: Change register space names in vop2 dt-bindings: display: rockchip: make reg-names mandatory for VOP2 ...
| * vfio/mdev: Remove mdev_parent_opsJason Gunthorpe2022-04-213-21/+6
| | | | | | | | | | | | | | | | | | | | | | | | | | | | The last useful member in this struct is the supported_type_groups, move it to the mdev_driver and delete mdev_parent_ops. Replace it with mdev_driver as an argument to mdev_register_device() Signed-off-by: Jason Gunthorpe <jgg@nvidia.com> Signed-off-by: Christoph Hellwig <hch@lst.de> Signed-off-by: Zhi Wang <zhi.a.wang@intel.com> Link: http://patchwork.freedesktop.org/patch/msgid/20220411141403.86980-33-hch@lst.de Reviewed-by: Kirti Wankhede <kwankhede@nvidia.com> Reviewed-by: Zhi Wang <zhi.a.wang@intel.com>
| * vfio/mdev: Remove mdev_parent_ops dev_attr_groupsJason Gunthorpe2022-04-211-29/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This is only used by one sample to print a fixed string that is pointless. In general, having a device driver attach sysfs attributes to the parent is horrific. This should never happen, and always leads to some kind of liftime bug as it become very difficult for the sysfs attribute to go back to any data owned by the device driver. Remove the general mechanism to create this abuse. Signed-off-by: Jason Gunthorpe <jgg@nvidia.com> Signed-off-by: Christoph Hellwig <hch@lst.de> Signed-off-by: Zhi Wang <zhi.a.wang@intel.com> Link: http://patchwork.freedesktop.org/patch/msgid/20220411141403.86980-32-hch@lst.de Reviewed-by: Kirti Wankhede <kwankhede@nvidia.com> Reviewed-by: Zhi Wang <zhi.a.wang@intel.com>
* | Merge tag 'net-next-5.19' of ↵Linus Torvalds2022-05-2534-497/+419
|\ \ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net-next Pull networking updates from Jakub Kicinski: "Core ---- - Support TCPv6 segmentation offload with super-segments larger than 64k bytes using the IPv6 Jumbogram extension header (AKA BIG TCP). - Generalize skb freeing deferral to per-cpu lists, instead of per-socket lists. - Add a netdev statistic for packets dropped due to L2 address mismatch (rx_otherhost_dropped). - Continue work annotating skb drop reasons. - Accept alternative netdev names (ALT_IFNAME) in more netlink requests. - Add VLAN support for AF_PACKET SOCK_RAW GSO. - Allow receiving skb mark from the socket as a cmsg. - Enable memcg accounting for veth queues, sysctl tables and IPv6. BPF --- - Add libbpf support for User Statically-Defined Tracing (USDTs). - Speed up symbol resolution for kprobes multi-link attachments. - Support storing typed pointers to referenced and unreferenced objects in BPF maps. - Add support for BPF link iterator. - Introduce access to remote CPU map elements in BPF per-cpu map. - Allow middle-of-the-road settings for the kernel.unprivileged_bpf_disabled sysctl. - Implement basic types of dynamic pointers e.g. to allow for dynamically sized ringbuf reservations without extra memory copies. Protocols --------- - Retire port only listening_hash table, add a second bind table hashed by port and address. Avoid linear list walk when binding to very popular ports (e.g. 443). - Add bridge FDB bulk flush filtering support allowing user space to remove all FDB entries matching a condition. - Introduce accept_unsolicited_na sysctl for IPv6 to implement router-side changes for RFC9131. - Support for MPTCP path manager in user space. - Add MPTCP support for fallback to regular TCP for connections that have never connected additional subflows or transmitted out-of-sequence data (partial support for RFC8684 fallback). - Avoid races in MPTCP-level window tracking, stabilize and improve throughput. - Support lockless operation of GRE tunnels with seq numbers enabled. - WiFi support for host based BSS color collision detection. - Add support for SO_TXTIME/SCM_TXTIME on CAN sockets. - Support transmission w/o flow control in CAN ISOTP (ISO 15765-2). - Support zero-copy Tx with TLS 1.2 crypto offload (sendfile). - Allow matching on the number of VLAN tags via tc-flower. - Add tracepoint for tcp_set_ca_state(). Driver API ---------- - Improve error reporting from classifier and action offload. - Add support for listing line cards in switches (devlink). - Add helpers for reporting page pool statistics with ethtool -S. - Add support for reading clock cycles when using PTP virtual clocks, instead of having the driver convert to time before reporting. This makes it possible to report time from different vclocks. - Support configuring low-latency Tx descriptor push via ethtool. - Separate Clause 22 and Clause 45 MDIO accesses more explicitly. New hardware / drivers ---------------------- - Ethernet: - Marvell's Octeon NIC PCI Endpoint support (octeon_ep) - Sunplus SP7021 SoC (sp7021_emac) - Add support for Renesas RZ/V2M (in ravb) - Add support for MediaTek mt7986 switches (in mtk_eth_soc) - Ethernet PHYs: - ADIN1100 industrial PHYs (w/ 10BASE-T1L and SQI reporting) - TI DP83TD510 PHY - Microchip LAN8742/LAN88xx PHYs - WiFi: - Driver for pureLiFi X, XL, XC devices (plfxlc) - Driver for Silicon Labs devices (wfx) - Support for WCN6750 (in ath11k) - Support Realtek 8852ce devices (in rtw89) - Mobile: - MediaTek T700 modems (Intel 5G 5000 M.2 cards) - CAN: - ctucanfd: add support for CTU CAN FD open-source IP core from Czech Technical University in Prague Drivers ------- - Delete a number of old drivers still using virt_to_bus(). - Ethernet NICs: - intel: support TSO on tunnels MPLS - broadcom: support multi-buffer XDP - nfp: support VF rate limiting - sfc: use hardware tx timestamps for more than PTP - mlx5: multi-port eswitch support - hyper-v: add support for XDP_REDIRECT - atlantic: XDP support (including multi-buffer) - macb: improve real-time perf by deferring Tx processing to NAPI - High-speed Ethernet switches: - mlxsw: implement basic line card information querying - prestera: add support for traffic policing on ingress and egress - Embedded Ethernet switches: - lan966x: add support for packet DMA (FDMA) - lan966x: add support for PTP programmable pins - ti: cpsw_new: enable bc/mc storm prevention - Qualcomm 802.11ax WiFi (ath11k): - Wake-on-WLAN support for QCA6390 and WCN6855 - device recovery (firmware restart) support - support setting Specific Absorption Rate (SAR) for WCN6855 - read country code from SMBIOS for WCN6855/QCA6390 - enable keep-alive during WoWLAN suspend - implement remain-on-channel support - MediaTek WiFi (mt76): - support Wireless Ethernet Dispatch offloading packet movement between the Ethernet switch and WiFi interfaces - non-standard VHT MCS10-11 support - mt7921 AP mode support - mt7921 IPv6 NS offload support - Ethernet PHYs: - micrel: ksz9031/ksz9131: cabletest support - lan87xx: SQI support for T1 PHYs - lan937x: add interrupt support for link detection" * tag 'net-next-5.19' of git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net-next: (1809 commits) ptp: ocp: Add firmware header checks ptp: ocp: fix PPS source selector debugfs reporting ptp: ocp: add .init function for sma_op vector ptp: ocp: vectorize the sma accessor functions ptp: ocp: constify selectors ptp: ocp: parameterize input/output sma selectors ptp: ocp: revise firmware display ptp: ocp: add Celestica timecard PCI ids ptp: ocp: Remove #ifdefs around PCI IDs ptp: ocp: 32-bit fixups for pci start address Revert "net/smc: fix listen processing for SMC-Rv2" ath6kl: Use cc-disable-warning to disable -Wdangling-pointer selftests/bpf: Dynptr tests bpf: Add dynptr data slices bpf: Add bpf_dynptr_read and bpf_dynptr_write bpf: Dynptr support for ring buffers bpf: Add bpf_dynptr_from_mem for local dynptrs bpf: Add verifier support for dynptrs bpf: Suppress 'passing zero to PTR_ERR' warning bpf: Introduce bpf_arch_text_invalidate for bpf_prog_pack ...
| * \ Merge https://git.kernel.org/pub/scm/linux/kernel/git/bpf/bpf-nextJakub Kicinski2022-05-232-11/+20
| |\ \ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Daniel Borkmann says: ==================== pull-request: bpf-next 2022-05-23 We've added 113 non-merge commits during the last 26 day(s) which contain a total of 121 files changed, 7425 insertions(+), 1586 deletions(-). The main changes are: 1) Speed up symbol resolution for kprobes multi-link attachments, from Jiri Olsa. 2) Add BPF dynamic pointer infrastructure e.g. to allow for dynamically sized ringbuf reservations without extra memory copies, from Joanne Koong. 3) Big batch of libbpf improvements towards libbpf 1.0 release, from Andrii Nakryiko. 4) Add BPF link iterator to traverse links via seq_file ops, from Dmitrii Dolgov. 5) Add source IP address to BPF tunnel key infrastructure, from Kaixi Fan. 6) Refine unprivileged BPF to disable only object-creating commands, from Alan Maguire. 7) Fix JIT blinding of ld_imm64 when they point to subprogs, from Alexei Starovoitov. 8) Add BPF access to mptcp_sock structures and their meta data, from Geliang Tang. 9) Add new BPF helper for access to remote CPU's BPF map elements, from Feng Zhou. 10) Allow attaching 64-bit cookie to BPF link of fentry/fexit/fmod_ret, from Kui-Feng Lee. 11) Follow-ups to typed pointer support in BPF maps, from Kumar Kartikeya Dwivedi. 12) Add busy-poll test cases to the XSK selftest suite, from Magnus Karlsson. 13) Improvements in BPF selftest test_progs subtest output, from Mykola Lysenko. 14) Fill bpf_prog_pack allocator areas with illegal instructions, from Song Liu. 15) Add generic batch operations for BPF map-in-map cases, from Takshak Chahande. 16) Make bpf_jit_enable more user friendly when permanently on 1, from Tiezhu Yang. 17) Fix an array overflow in bpf_trampoline_get_progs(), from Yuntao Wang. ==================== Link: https://lore.kernel.org/r/20220523223805.27931-1-daniel@iogearbox.net Signed-off-by: Jakub Kicinski <kuba@kernel.org>
| | * | samples: bpf: Don't fail for a missing VMLINUX_BTF when VMLINUX_H is providedJerome Marchand2022-05-091-5/+4
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | samples/bpf build currently always fails if it can't generate vmlinux.h from vmlinux, even when vmlinux.h is directly provided by VMLINUX_H variable, which makes VMLINUX_H pointless. Only fails when neither method works. Fixes: 384b6b3bbf0d ("samples: bpf: Add vmlinux.h generation support") Reported-by: CKI Project <cki-project@redhat.com> Reported-by: Veronika Kabatova <vkabatov@redhat.com> Signed-off-by: Jerome Marchand <jmarchan@redhat.com> Signed-off-by: Andrii Nakryiko <andrii@kernel.org> Link: https://lore.kernel.org/bpf/20220507161635.2219052-1-jmarchan@redhat.com
| | * | samples/bpf: Detach xdp prog when program exits unexpectedly in ↵Zhengchao Shao2022-04-271-6/+16
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | xdp_rxq_info_user When xdp_rxq_info_user program exits unexpectedly, it doesn't detach xdp prog of device, and other xdp prog can't be attached to the device. So call init_exit() to detach xdp prog when program exits unexpectedly. Signed-off-by: Zhengchao Shao <shaozhengchao@huawei.com> Signed-off-by: Andrii Nakryiko <andrii@kernel.org> Link: https://lore.kernel.org/bpf/20220427062338.80173-1-shaozhengchao@huawei.com
| * | | Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/netJakub Kicinski2022-05-191-3/+3
| |\ \ \ | | |/ / | |/| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | drivers/net/ethernet/mellanox/mlx5/core/main.c b33886971dbc ("net/mlx5: Initialize flow steering during driver probe") 40379a0084c2 ("net/mlx5_fpga: Drop INNOVA TLS support") f2b41b32cde8 ("net/mlx5: Remove ipsec_ops function table") https://lore.kernel.org/all/20220519040345.6yrjromcdistu7vh@sx1/ 16d42d313350 ("net/mlx5: Drain fw_reset when removing device") 8324a02c342a ("net/mlx5: Add exit route when waiting for FW") https://lore.kernel.org/all/20220519114119.060ce014@canb.auug.org.au/ tools/testing/selftests/net/mptcp/mptcp_join.sh e274f7154008 ("selftests: mptcp: add subflow limits test-cases") b6e074e171bc ("selftests: mptcp: add infinite map testcase") 5ac1d2d63451 ("selftests: mptcp: Add tests for userspace PM type") https://lore.kernel.org/all/20220516111918.366d747f@canb.auug.org.au/ net/mptcp/options.c ba2c89e0ea74 ("mptcp: fix checksum byte order") 1e39e5a32ad7 ("mptcp: infinite mapping sending") ea66758c1795 ("tcp: allow MPTCP to update the announced window") https://lore.kernel.org/all/20220519115146.751c3a37@canb.auug.org.au/ net/mptcp/pm.c 95d686517884 ("mptcp: fix subflow accounting on close") 4d25247d3ae4 ("mptcp: bypass in-kernel PM restrictions for non-kernel PMs") https://lore.kernel.org/all/20220516111435.72f35dca@canb.auug.org.au/ net/mptcp/subflow.c ae66fb2ba6c3 ("mptcp: Do TCP fallback on early DSS checksum failure") 0348c690ed37 ("mptcp: add the fallback check") f8d4bcacff3b ("mptcp: infinite mapping receiving") https://lore.kernel.org/all/20220519115837.380bb8d4@canb.auug.org.au/ Signed-off-by: Jakub Kicinski <kuba@kernel.org>
| * | | samples/bpf: Reduce the sampling interval in xdp1_userZhengchao Shao2022-04-201-1/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | If interval is 2, and sum - prev[key] = 1, the result = 0. This will mislead the tester that the port has no traffic right now. So reduce the sampling interval to 1. Signed-off-by: Zhengchao Shao <shaozhengchao@huawei.com> Signed-off-by: Andrii Nakryiko <andrii@kernel.org> Link: https://lore.kernel.org/bpf/20220419114746.291613-1-shaozhengchao@huawei.com
| * | | samples/bpf: Use libbpf 1.0 API mode instead of RLIMIT_MEMLOCKYafang Shao2022-04-1031-42/+7
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | We have switched to memcg-based memory accouting and thus the rlimit is not needed any more. LIBBPF_STRICT_AUTO_RLIMIT_MEMLOCK was introduced in libbpf for backward compatibility, so we can use it instead now. This patch also removes the useless header sys/resource.h from many files in samples/bpf. Signed-off-by: Yafang Shao <laoar.shao@gmail.com> Signed-off-by: Andrii Nakryiko <andrii@kernel.org> Link: https://lore.kernel.org/bpf/20220409125958.92629-2-laoar.shao@gmail.com
| * | | samples, bpf: Move routes monitor in xdp_router_ipv4 in a dedicated threadLorenzo Bianconi2022-04-082-33/+55
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | In order to not miss any netlink message from the kernel, move routes monitor to a dedicated thread. Fixes: 85bf1f51691c ("samples: bpf: Convert xdp_router_ipv4 to XDP samples helper") Signed-off-by: Lorenzo Bianconi <lorenzo@kernel.org> Signed-off-by: Daniel Borkmann <daniel@iogearbox.net> Link: https://lore.kernel.org/bpf/e364b817c69ded73be24b677ab47a157f7c21b64.1649167911.git.lorenzo@kernel.org
| * | | samples: bpf: Fix linking xdp_router_ipv4 after migrationAlexander Lobakin2022-04-041-0/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Users of the xdp_sample_user infra should be explicitly linked with the standard math library (`-lm`). Otherwise, the following happens: /usr/bin/ld: xdp_sample_user.c:(.text+0x59fc): undefined reference to `ceil' /usr/bin/ld: xdp_sample_user.c:(.text+0x5a0d): undefined reference to `ceil' /usr/bin/ld: xdp_sample_user.c:(.text+0x5adc): undefined reference to `floor' /usr/bin/ld: xdp_sample_user.c:(.text+0x5b01): undefined reference to `ceil' /usr/bin/ld: xdp_sample_user.c:(.text+0x5c1e): undefined reference to `floor' /usr/bin/ld: xdp_sample_user.c:(.text+0x5c43): undefined reference to `ceil [...] That happened previously, so there's a block of linkage flags in the Makefile. xdp_router_ipv4 has been transferred to this infra quite recently, but hasn't been added to it. Fix. Fixes: 85bf1f51691c ("samples: bpf: Convert xdp_router_ipv4 to XDP samples helper") Signed-off-by: Alexander Lobakin <alexandr.lobakin@intel.com> Signed-off-by: Andrii Nakryiko <andrii@kernel.org> Link: https://lore.kernel.org/bpf/20220404115451.1116478-1-alexandr.lobakin@intel.com
| * | | sample: bpf: syscall_tp_user: Print result of verify_mapSong Chen2022-04-041-0/+3
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | At the end of the test, we already print out prog <prog number>: map ids <...> <...> Value is the number read from kernel through bpf map, further print out verify map:<map id> val:<...> will help users to understand the program runs successfully. Signed-off-by: Song Chen <chensong_2000@189.cn> Signed-off-by: Andrii Nakryiko <andrii@kernel.org> Link: https://lore.kernel.org/bpf/1648889828-12417-1-git-send-email-chensong_2000@189.cn
| * | | samples: bpf: Convert xdp_router_ipv4 to XDP samples helperLorenzo Bianconi2022-04-034-459/+381
| | |/ | |/| | | | | | | | | | | | | | | | | | | | | | Rely on the libbpf skeleton facility and other utilities provided by XDP sample helpers in xdp_router_ipv4 sample. Signed-off-by: Lorenzo Bianconi <lorenzo@kernel.org> Signed-off-by: Andrii Nakryiko <andrii@kernel.org> Link: https://lore.kernel.org/bpf/7f4d98ee2c13c04d5eb924eebf79ced32fee8418.1647414711.git.lorenzo@kernel.org
* | | Merge tag 'landlock-5.19-rc1' of ↵Linus Torvalds2022-05-241-51/+81
|\ \ \ | |_|/ |/| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | git://git.kernel.org/pub/scm/linux/kernel/git/mic/linux Pull Landlock updates from Mickaël Salaün: - improve the path_rename LSM hook implementations for RENAME_EXCHANGE; - fix a too-restrictive filesystem control for a rare corner case; - set the nested sandbox limitation to 16 layers; - add a new LANDLOCK_ACCESS_FS_REFER access right to properly handle file reparenting (i.e. full rename and link support); - add new tests and documentation; - format code with clang-format to make it easier to maintain and contribute. * tag 'landlock-5.19-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/mic/linux: (30 commits) landlock: Explain how to support Landlock landlock: Add design choices documentation for filesystem access rights landlock: Document good practices about filesystem policies landlock: Document LANDLOCK_ACCESS_FS_REFER and ABI versioning samples/landlock: Add support for file reparenting selftests/landlock: Add 11 new test suites dedicated to file reparenting landlock: Add support for file reparenting with LANDLOCK_ACCESS_FS_REFER LSM: Remove double path_rename hook calls for RENAME_EXCHANGE landlock: Move filesystem helpers and add a new one landlock: Fix same-layer rule unions landlock: Create find_rule() from unmask_layers() landlock: Reduce the maximum number of layers to 16 landlock: Define access_mask_t to enforce a consistent access mask size selftests/landlock: Test landlock_create_ruleset(2) argument check ordering landlock: Change landlock_restrict_self(2) check ordering landlock: Change landlock_add_rule(2) argument check ordering selftests/landlock: Add tests for O_PATH selftests/landlock: Fully test file rename with "remove" access selftests/landlock: Extend access right tests to directories selftests/landlock: Add tests for unknown access rights ...
| * | samples/landlock: Add support for file reparentingMickaël Salaün2022-05-231-13/+27
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Add LANDLOCK_ACCESS_FS_REFER to the "roughly write" access rights and leverage the Landlock ABI version to only try to enforce it if it is supported by the running kernel. Reviewed-by: Paul Moore <paul@paul-moore.com> Signed-off-by: Mickaël Salaün <mic@digikod.net> Link: https://lore.kernel.org/r/20220506161102.525323-10-mic@digikod.net
| * | samples/landlock: Format with clang-formatMickaël Salaün2022-05-231-44/+52
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Let's follow a consistent and documented coding style. Everything may not be to our liking but it is better than tacit knowledge. Moreover, this will help maintain style consistency between different developers. This contains only whitespace changes. Automatically formatted with: clang-format-14 -i samples/landlock/*.[ch] Link: https://lore.kernel.org/r/20220506160513.523257-8-mic@digikod.net Cc: stable@vger.kernel.org Signed-off-by: Mickaël Salaün <mic@digikod.net>
| * | samples/landlock: Add clang-format exceptionsMickaël Salaün2022-05-231-0/+8
| |/ | | | | | | | | | | | | | | | | | | | | In preparation to a following commit, add clang-format on and clang-format off stanzas around constant definitions. This enables to keep aligned values, which is much more readable than packed definitions. Link: https://lore.kernel.org/r/20220506160513.523257-7-mic@digikod.net Cc: stable@vger.kernel.org Signed-off-by: Mickaël Salaün <mic@digikod.net>
* / sched/tracing: Append prev_state to tp args insteadDelyan Kratunov2022-05-121-3/+3
|/ | | | | | | | | | | | | | | | | | | | | Commit fa2c3254d7cf (sched/tracing: Don't re-read p->state when emitting sched_switch event, 2022-01-20) added a new prev_state argument to the sched_switch tracepoint, before the prev task_struct pointer. This reordering of arguments broke BPF programs that use the raw tracepoint (e.g. tp_btf programs). The type of the second argument has changed and existing programs that assume a task_struct* argument (e.g. for bpf_task_storage access) will now fail to verify. If we instead append the new argument to the end, all existing programs would continue to work and can conditionally extract the prev_state argument on supported kernel versions. Fixes: fa2c3254d7cf (sched/tracing: Don't re-read p->state when emitting sched_switch event, 2022-01-20) Signed-off-by: Delyan Kratunov <delyank@fb.com> Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org> Acked-by: Steven Rostedt (Google) <rostedt@goodmis.org> Link: https://lkml.kernel.org/r/c8a6930dfdd58a4a5755fc01732675472979732b.camel@fb.com
* Merge tag 'dma-mapping-5.18' of git://git.infradead.org/users/hch/dma-mappingLinus Torvalds2022-03-291-1/+1
|\ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Pull dma-mapping updates from Christoph Hellwig: - do not zero buffer in set_memory_decrypted (Kirill A. Shutemov) - fix return value of dma-debug __setup handlers (Randy Dunlap) - swiotlb cleanups (Robin Murphy) - remove most remaining users of the pci-dma-compat.h API (Christophe JAILLET) - share the ABI header for the DMA map_benchmark with userspace (Tian Tao) - update the maintainer for DMA MAPPING BENCHMARK (Xiang Chen) - remove CONFIG_DMA_REMAP (me) * tag 'dma-mapping-5.18' of git://git.infradead.org/users/hch/dma-mapping: dma-mapping: benchmark: extract a common header file for map_benchmark definition dma-debug: fix return value of __setup handlers dma-mapping: remove CONFIG_DMA_REMAP media: v4l2-pci-skeleton: Remove usage of the deprecated "pci-dma-compat.h" API rapidio/tsi721: Remove usage of the deprecated "pci-dma-compat.h" API sparc: Remove usage of the deprecated "pci-dma-compat.h" API agp/intel: Remove usage of the deprecated "pci-dma-compat.h" API alpha: Remove usage of the deprecated "pci-dma-compat.h" API MAINTAINERS: update maintainer list of DMA MAPPING BENCHMARK swiotlb: simplify array allocation swiotlb: tidy up includes swiotlb: simplify debugfs setup swiotlb: do not zero buffer in set_memory_decrypted()
| * media: v4l2-pci-skeleton: Remove usage of the deprecated "pci-dma-compat.h" APIChristophe JAILLET2022-02-251-1/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | In [1], Christoph Hellwig has proposed to remove the wrappers in include/linux/pci-dma-compat.h. Some reasons why this API should be removed have been given by Julia Lawall in [2]. A coccinelle script has been used to perform the needed transformation. It can be found in [3]. [1]: https://lore.kernel.org/kernel-janitors/20200421081257.GA131897@infradead.org/ [2]: https://lore.kernel.org/kernel-janitors/alpine.DEB.2.22.394.2007120902170.2424@hadrien/ [3]: https://lore.kernel.org/kernel-janitors/20200716192821.321233-1-christophe.jaillet@wanadoo.fr/ Signed-off-by: Christophe JAILLET <christophe.jaillet@wanadoo.fr> Reviewed-by: Arnd Bergmann <arnd@arndb.de> Signed-off-by: Christoph Hellwig <hch@lst.de>
* | Merge tag 'livepatching-for-5.18' of ↵Linus Torvalds2022-03-282-2/+2
|\ \ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | git://git.kernel.org/pub/scm/linux/kernel/git/livepatching/livepatching Pull livepatching updates from Petr Mladek: - Forced transitions block only to-be-removed livepatches [Chengming] - Detect when ftrace handler could not be disabled in self-tests [David] - Calm down warning from a static analyzer [Tom] * tag 'livepatching-for-5.18' of git://git.kernel.org/pub/scm/linux/kernel/git/livepatching/livepatching: livepatch: Reorder to use before freeing a pointer livepatch: Don't block removal of patches that are safe to unload livepatch: Skip livepatch tests if ftrace cannot be configured
| * | livepatch: Reorder to use before freeing a pointerTom Rix2022-03-232-2/+2
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Clang static analysis reports this issue livepatch-shadow-fix1.c:113:2: warning: Use of memory after it is freed pr_info("%s: dummy @ %p, prevented leak @ %p\n", ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ The pointer is freed in the previous statement. Reorder the pr_info to report before the free. Similar issue in livepatch-shadow-fix2.c Note that it is a false positive. pr_info() just prints the address. The freed memory is not accessed. Well, the static analyzer could not know this easily. Signed-off-by: Tom Rix <trix@redhat.com> Reviewed-by: Petr Mladek <pmladek@suse.com> Acked-by: David Vernet <void@manifault.com> Acked-by: Joe Lawrence <joe.lawrence@redhat.com> [pmladek@suse.com: Note about that it was false positive.] Signed-off-by: Petr Mladek <pmladek@suse.com> Link: https://lore.kernel.org/r/20220320015143.2208591-1-trix@redhat.com
* | | Merge tag 'driver-core-5.18-rc1' of ↵Linus Torvalds2022-03-282-4/+4
|\ \ \ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/driver-core Pull driver core updates from Greg KH: "Here is the set of driver core changes for 5.18-rc1. Not much here, primarily it was a bunch of cleanups and small updates: - kobj_type cleanups for default_groups - documentation updates - firmware loader minor changes - component common helper added and take advantage of it in many drivers (the largest part of this pull request). All of these have been in linux-next for a while with no reported problems" * tag 'driver-core-5.18-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/driver-core: (54 commits) Documentation: update stable review cycle documentation drivers/base/dd.c : Remove the initial value of the global variable Documentation: update stable tree link Documentation: add link to stable release candidate tree devres: fix typos in comments Documentation: add note block surrounding security patch note samples/kobject: Use sysfs_emit instead of sprintf base: soc: Make soc_device_match() simpler and easier to read driver core: dd: fix return value of __setup handler driver core: Refactor sysfs and drv/bus remove hooks driver core: Refactor multiple copies of device cleanup scripts: get_abi.pl: Fix typo in help message kernfs: fix typos in comments kernfs: remove unneeded #if 0 guard ALSA: hda/realtek: Make use of the helper component_compare_dev_name video: omapfb: dss: Make use of the helper component_compare_dev power: supply: ab8500: Make use of the helper component_compare_dev ASoC: codecs: wcd938x: Make use of the helper component_compare/release_of iommu/mediatek: Make use of the helper component_compare/release_of drm: of: Make use of the helper component_release_of ...
| * | | samples/kobject: Use sysfs_emit instead of sprintfNguyen Dinh Phi2022-03-182-4/+4
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | sysfs_emit() is preferred over sprintf() when formatting the value to be returned to user space in show() functions, because it knows about sysfs buffer specifics and has sanity checks. Signed-off-by: Nguyen Dinh Phi <phind.uet@gmail.com> Link: https://lore.kernel.org/r/20220303183618.1342358-1-phind.uet@gmail.com Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
* | | | Merge tag 'landlock-5.18-rc1' of ↵Linus Torvalds2022-03-271-0/+1
|\ \ \ \ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | git://git.kernel.org/pub/scm/linux/kernel/git/mic/linux Pull landlock updates from Mickaël Salaün: "These two commits contain a minor fix for the sandboxer sample, and a Landlock ruleset FD name standardization" * tag 'landlock-5.18-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/mic/linux: landlock: Use square brackets around "landlock-ruleset" samples/landlock: Fix path_list memory leak
| * | | | samples/landlock: Fix path_list memory leakTom Rix2022-02-041-0/+1
| | |_|/ | |/| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Clang static analysis reports this error sandboxer.c:134:8: warning: Potential leak of memory pointed to by 'path_list' ret = 0; ^ path_list is allocated in parse_path() but never freed. Signed-off-by: Tom Rix <trix@redhat.com> Link: https://lore.kernel.org/r/20210428213852.2874324-1-trix@redhat.com Cc: stable@vger.kernel.org Signed-off-by: Mickaël Salaün <mic@linux.microsoft.com>
* | | | Merge tag 'x86_core_for_5.18_rc1' of ↵Linus Torvalds2022-03-275-4/+22
|\ \ \ \ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip Pull x86 CET-IBT (Control-Flow-Integrity) support from Peter Zijlstra: "Add support for Intel CET-IBT, available since Tigerlake (11th gen), which is a coarse grained, hardware based, forward edge Control-Flow-Integrity mechanism where any indirect CALL/JMP must target an ENDBR instruction or suffer #CP. Additionally, since Alderlake (12th gen)/Sapphire-Rapids, speculation is limited to 2 instructions (and typically fewer) on branch targets not starting with ENDBR. CET-IBT also limits speculation of the next sequential instruction after the indirect CALL/JMP [1]. CET-IBT is fundamentally incompatible with retpolines, but provides, as described above, speculation limits itself" [1] https://www.intel.com/content/www/us/en/developer/articles/technical/software-security-guidance/technical-documentation/branch-history-injection.html * tag 'x86_core_for_5.18_rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: (53 commits) kvm/emulate: Fix SETcc emulation for ENDBR x86/Kconfig: Only allow CONFIG_X86_KERNEL_IBT with ld.lld >= 14.0.0 x86/Kconfig: Only enable CONFIG_CC_HAS_IBT for clang >= 14.0.0 kbuild: Fixup the IBT kbuild changes x86/Kconfig: Do not allow CONFIG_X86_X32_ABI=y with llvm-objcopy x86: Remove toolchain check for X32 ABI capability x86/alternative: Use .ibt_endbr_seal to seal indirect calls objtool: Find unused ENDBR instructions objtool: Validate IBT assumptions objtool: Add IBT/ENDBR decoding objtool: Read the NOENDBR annotation x86: Annotate idtentry_df() x86,objtool: Move the ASM_REACHABLE annotation to objtool.h x86: Annotate call_on_stack() objtool: Rework ASM_REACHABLE x86: Mark __invalid_creds() __noreturn exit: Mark do_group_exit() __noreturn x86: Mark stop_this_cpu() __noreturn objtool: Ignore extra-symbol code objtool: Rename --duplicate to --lto ...
| * | | | x86/ibt,ftrace: Add ENDBR to samples/ftracePeter Zijlstra2022-03-155-4/+22
| | |/ / | |/| | | | | | | | | | | | | | | | | | Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org> Acked-by: Josh Poimboeuf <jpoimboe@redhat.com> Link: https://lore.kernel.org/r/20220308154318.523421433@infradead.org
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