// SPDX-License-Identifier: GPL-2.0 /* * Copyright 2025 Google LLC. */ #include <linux/fs.h> #include <linux/bpf_lsm.h> /* * Strong definition of the mmap_file() BPF LSM hook. The __nullable suffix on * the struct file pointer parameter name marks it as PTR_MAYBE_NULL. This * explicitly enforces that BPF LSM programs check for NULL before attempting to * dereference it. */ int bpf_lsm_mmap_file(struct file *file__nullable, unsigned long reqprot, unsigned long prot, unsigned long flags) { return 0; }