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bpf: Trim special_kfunc_list in verifier

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The commit 7619a0ee93 ("bpf: Mark existing lock-safe kfuncs with KF_SPINLOCK_SAFE")
dropped some helpers in verifier, which also eliminated the use of the
following kfuncs from the special_kfunc_list:

* bpf_arena_reserve_pages
* bpf_stream_vprintk
* bpf_stream_print_stack

So, drop them from the special_kfunc_list.

Signed-off-by: Leon Hwang <leon.hwang@linux.dev>
Link: https://lore.kernel.org/bpf/20260812164843.55601-1-leon.hwang@linux.dev
Signed-off-by: Kumar Kartikeya Dwivedi <memxor@gmail.com>
This commit is contained in:
Leon Hwang 2026-08-13 00:48:43 +08:00 committed by Kumar Kartikeya Dwivedi
parent 7c3e54cb82
commit 6f033615ef
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1 changed files with 0 additions and 6 deletions
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6
kernel/bpf/verifier.c
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@ -11122,10 +11122,7 @@ enum special_kfunc_type {
KF_bpf_task_work_schedule_resume, KF_bpf_task_work_schedule_resume,
KF_bpf_arena_alloc_pages, KF_bpf_arena_alloc_pages,
KF_bpf_arena_free_pages, KF_bpf_arena_free_pages,
KF_bpf_arena_reserve_pages,
KF_bpf_session_is_return, KF_bpf_session_is_return,
KF_bpf_stream_vprintk,
KF_bpf_stream_print_stack,
}; };
BTF_ID_LIST(special_kfunc_list) BTF_ID_LIST(special_kfunc_list)
@ -11215,14 +11212,11 @@ BTF_ID(func, bpf_task_work_schedule_signal)
BTF_ID(func, bpf_task_work_schedule_resume) BTF_ID(func, bpf_task_work_schedule_resume)
BTF_ID(func, bpf_arena_alloc_pages) BTF_ID(func, bpf_arena_alloc_pages)
BTF_ID(func, bpf_arena_free_pages) BTF_ID(func, bpf_arena_free_pages)
BTF_ID(func, bpf_arena_reserve_pages)
#ifdef CONFIG_BPF_EVENTS #ifdef CONFIG_BPF_EVENTS
BTF_ID(func, bpf_session_is_return) BTF_ID(func, bpf_session_is_return)
#else #else
BTF_ID_UNUSED BTF_ID_UNUSED
#endif #endif
BTF_ID(func, bpf_stream_vprintk)
BTF_ID(func, bpf_stream_print_stack)
static bool is_bpf_obj_new_kfunc(u32 func_id) static bool is_bpf_obj_new_kfunc(u32 func_id)
{ {