53475287da
-----BEGIN PGP SIGNATURE----- iHUEABYIAB0WIQTFp0I1jqZrAX+hPRXbK58LschIgwUCZV0kjgAKCRDbK58LschI gy0EAP9XwncW2OhO72DpITluFzvWPgB0N97OANKBXjzKJrRAlQD/aUe9nlvBQuad WsbMKLeC4wvI2X/4PEIR4ukbuZ3ypAA= =LMVg -----END PGP SIGNATURE----- Merge tag 'for-netdev' of https://git.kernel.org/pub/scm/linux/kernel/git/bpf/bpf-next Daniel Borkmann says: ==================== pull-request: bpf-next 2023-11-21 We've added 85 non-merge commits during the last 12 day(s) which contain a total of 63 files changed, 4464 insertions(+), 1484 deletions(-). The main changes are: 1) Huge batch of verifier changes to improve BPF register bounds logic and range support along with a large test suite, and verifier log improvements, all from Andrii Nakryiko. 2) Add a new kfunc which acquires the associated cgroup of a task within a specific cgroup v1 hierarchy where the latter is identified by its id, from Yafang Shao. 3) Extend verifier to allow bpf_refcount_acquire() of a map value field obtained via direct load which is a use-case needed in sched_ext, from Dave Marchevsky. 4) Fix bpf_get_task_stack() helper to add the correct crosstask check for the get_perf_callchain(), from Jordan Rome. 5) Fix BPF task_iter internals where lockless usage of next_thread() was wrong. The rework also simplifies the code, from Oleg Nesterov. 6) Fix uninitialized tail padding via LIBBPF_OPTS_RESET, and another fix for certain BPF UAPI structs to fix verifier failures seen in bpf_dynptr usage, from Yonghong Song. 7) Add BPF selftest fixes for map_percpu_stats flakes due to per-CPU BPF memory allocator not being able to allocate per-CPU pointer successfully, from Hou Tao. 8) Add prep work around dynptr and string handling for kfuncs which is later going to be used by file verification via BPF LSM and fsverity, from Song Liu. 9) Improve BPF selftests to update multiple prog_tests to use ASSERT_* macros, from Yuran Pereira. 10) Optimize LPM trie lookup to check prefixlen before walking the trie, from Florian Lehner. 11) Consolidate virtio/9p configs from BPF selftests in config.vm file given they are needed consistently across archs, from Manu Bretelle. 12) Small BPF verifier refactor to remove register_is_const(), from Shung-Hsi Yu. * tag 'for-netdev' of https://git.kernel.org/pub/scm/linux/kernel/git/bpf/bpf-next: (85 commits) selftests/bpf: Replaces the usage of CHECK calls for ASSERTs in vmlinux selftests/bpf: Replaces the usage of CHECK calls for ASSERTs in bpf_obj_id selftests/bpf: Replaces the usage of CHECK calls for ASSERTs in bind_perm selftests/bpf: Replaces the usage of CHECK calls for ASSERTs in bpf_tcp_ca selftests/bpf: reduce verboseness of reg_bounds selftest logs bpf: bpf_iter_task_next: use next_task(kit->task) rather than next_task(kit->pos) bpf: bpf_iter_task_next: use __next_thread() rather than next_thread() bpf: task_group_seq_get_next: use __next_thread() rather than next_thread() bpf: emit frameno for PTR_TO_STACK regs if it differs from current one bpf: smarter verifier log number printing logic bpf: omit default off=0 and imm=0 in register state log bpf: emit map name in register state if applicable and available bpf: print spilled register state in stack slot bpf: extract register state printing bpf: move verifier state printing code to kernel/bpf/log.c bpf: move verbose_linfo() into kernel/bpf/log.c bpf: rename BPF_F_TEST_SANITY_STRICT to BPF_F_TEST_REG_INVARIANTS bpf: Remove test for MOVSX32 with offset=32 selftests/bpf: add iter test requiring range x range logic veristat: add ability to set BPF_F_TEST_SANITY_STRICT flag with -r flag ... ==================== Link: https://lore.kernel.org/r/20231122000500.28126-1-daniel@iogearbox.net Signed-off-by: Jakub Kicinski <kuba@kernel.org> |
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Linux kernel
============
There are several guides for kernel developers and users. These guides can
be rendered in a number of formats, like HTML and PDF. Please read
Documentation/admin-guide/README.rst first.
In order to build the documentation, use ``make htmldocs`` or
``make pdfdocs``. The formatted documentation can also be read online at:
https://www.kernel.org/doc/html/latest/
There are various text files in the Documentation/ subdirectory,
several of them using the Restructured Text markup notation.
Please read the Documentation/process/changes.rst file, as it contains the
requirements for building and running the kernel, and information about
the problems which may result by upgrading your kernel.