Merge git://git.kernel.org/pub/scm/linux/kernel/git/bpf/bpf after 6.19-rc1

Cross-merge BPF and other fixes after downstream PR.

Signed-off-by: Alexei Starovoitov <ast@kernel.org>

diff --cc include/linux/bpf.h
Simple merge

diff --cc kernel/bpf/core.c
Simple merge

diff --cc kernel/bpf/syscall.c
Simple merge

diff --cc tools/lib/bpf/libbpf.c
Simple merge