on some systems BPF Type Format (BTF) info is not available. Because we make extensive use of it, we need a separate set of BPF programs that work in a "no BTF" world; these cannot make use of Compile Once - Run Everywhere (CO-RE) relocations, so data structure offsets may be wrong for the running kernel, so warn the user.
Tuners cannot be supported in this mode because the likeliehood of such issues is nearly 100%; warn the user about this.
on some systems BPF Type Format (BTF) info is not available. Because we make extensive use of it, we need a separate set of BPF programs that work in a "no BTF" world; these cannot make use of Compile Once - Run Everywhere (CO-RE) relocations, so data structure offsets may be wrong for the running kernel, so warn the user.
Tuners cannot be supported in this mode because the likeliehood of such issues is nearly 100%; warn the user about this.
Reported-by: Stuart Shelton https://github.com/srcshelton