Commit fa593d0f969d for kernel

commit fa593d0f969dcfa41d390822fdf1a0ab48cd882c
Merge: 7f2ff7b62617 9aa8fe29f624
Author: Linus Torvalds <torvalds@linux-foundation.org>
Date:   Sun Mar 30 12:43:03 2025 -0700

    Merge tag 'bpf-next-6.15' of git://git.kernel.org/pub/scm/linux/kernel/git/bpf/bpf-next

    Pull bpf updates from Alexei Starovoitov:
     "For this merge window we're splitting BPF pull request into three for
      higher visibility: main changes, res_spin_lock, try_alloc_pages.

      These are the main BPF changes:

       - Add DFA-based live registers analysis to improve verification of
         programs with loops (Eduard Zingerman)

       - Introduce load_acquire and store_release BPF instructions and add
         x86, arm64 JIT support (Peilin Ye)

       - Fix loop detection logic in the verifier (Eduard Zingerman)

       - Drop unnecesary lock in bpf_map_inc_not_zero() (Eric Dumazet)

       - Add kfunc for populating cpumask bits (Emil Tsalapatis)

       - Convert various shell based tests to selftests/bpf/test_progs
         format (Bastien Curutchet)

       - Allow passing referenced kptrs into struct_ops callbacks (Amery
         Hung)

       - Add a flag to LSM bpf hook to facilitate bpf program signing
         (Blaise Boscaccy)

       - Track arena arguments in kfuncs (Ihor Solodrai)

       - Add copy_remote_vm_str() helper for reading strings from remote VM
         and bpf_copy_from_user_task_str() kfunc (Jordan Rome)

       - Add support for timed may_goto instruction (Kumar Kartikeya
         Dwivedi)

       - Allow bpf_get_netns_cookie() int cgroup_skb programs (Mahe Tardy)

       - Reduce bpf_cgrp_storage_busy false positives when accessing cgroup
         local storage (Martin KaFai Lau)

       - Introduce bpf_dynptr_copy() kfunc (Mykyta Yatsenko)

       - Allow retrieving BTF data with BTF token (Mykyta Yatsenko)

       - Add BPF kfuncs to set and get xattrs with 'security.bpf.' prefix
         (Song Liu)

       - Reject attaching programs to noreturn functions (Yafang Shao)

       - Introduce pre-order traversal of cgroup bpf programs (Yonghong
         Song)"

    * tag 'bpf-next-6.15' of git://git.kernel.org/pub/scm/linux/kernel/git/bpf/bpf-next: (186 commits)
      selftests/bpf: Add selftests for load-acquire/store-release when register number is invalid
      bpf: Fix out-of-bounds read in check_atomic_load/store()
      libbpf: Add namespace for errstr making it libbpf_errstr
      bpf: Add struct_ops context information to struct bpf_prog_aux
      selftests/bpf: Sanitize pointer prior fclose()
      selftests/bpf: Migrate test_xdp_vlan.sh into test_progs
      selftests/bpf: test_xdp_vlan: Rename BPF sections
      bpf: clarify a misleading verifier error message
      selftests/bpf: Add selftest for attaching fexit to __noreturn functions
      bpf: Reject attaching fexit/fmod_ret to __noreturn functions
      bpf: Only fails the busy counter check in bpf_cgrp_storage_get if it creates storage
      bpf: Make perf_event_read_output accessible in all program types.
      bpftool: Using the right format specifiers
      bpftool: Add -Wformat-signedness flag to detect format errors
      selftests/bpf: Test freplace from user namespace
      libbpf: Pass BPF token from find_prog_btf_id to BPF_BTF_GET_FD_BY_ID
      bpf: Return prog btf_id without capable check
      bpf: BPF token support for BPF_BTF_GET_FD_BY_ID
      bpf, x86: Fix objtool warning for timed may_goto
      bpf: Check map->record at the beginning of check_and_free_fields()
      ...