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Pull bpf updates from Alexei Starovoitov: - Add BPF uprobe session support (Jiri Olsa) - Optimize uprobe performance (Andrii Nakryiko) - Add bpf_fastcall support to helpers and kfuncs (Eduard Zingerman) - Avoid calling free_htab_elem() under hash map bucket lock (Hou Tao) - Prevent tailcall infinite loop caused by freplace (Leon Hwang) - Mark raw_tracepoint arguments as nullable (Kumar Kartikeya Dwivedi) - Introduce uptr support in the task local storage map (Martin KaFai Lau) - Stringify errno log messages in libbpf (Mykyta Yatsenko) - Add kmem_cache BPF iterator for perf's lock profiling (Namhyung Kim) - Support BPF objects of either endianness in libbpf (Tony Ambardar) - Add ksym to struct_ops trampoline to fix stack trace (Xu Kuohai) - Introduce private stack for eligible BPF programs (Yonghong Song) - Migrate samples/bpf tests to selftests/bpf test_progs (Daniel T. Lee) - Migrate test_sock to selftests/bpf test_progs (Jordan Rife) * tag 'bpf-next-6.13' of git://git.kernel.org/pub/scm/linux/kernel/git/bpf/bpf-next: (152 commits) libbpf: Change hash_combine parameters from long to unsigned long selftests/bpf: Fix build error with llvm 19 libbpf: Fix memory leak in bpf_program__attach_uprobe_multi bpf: use common instruction history across all states bpf: Add necessary migrate_disable to range_tree. bpf: Do not alloc arena on unsupported arches selftests/bpf: Set test path for token/obj_priv_implicit_token_envvar selftests/bpf: Add a test for arena range tree algorithm bpf: Introduce range_tree data structure and use it in bpf arena samples/bpf: Remove unused variable in xdp2skb_meta_kern.c samples/bpf: Remove unused variables in tc_l2_redirect_kern.c bpftool: Cast variable `var` to long long bpf, x86: Propagate tailcall info only for subprogs bpf: Add kernel symbol for struct_ops trampoline bpf: Use function pointers count as struct_ops links count bpf: Remove unused member rcu from bpf_struct_ops_map selftests/bpf: Add struct_ops prog private stack tests bpf: Support private stack for struct_ops progs selftests/bpf: Add tracing prog private stack tests bpf, x86: Support private stack in jit ...
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 reStructuredText 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.