[...] > +/* The BPF dispatcher is a multiway branch code generator. The > + * dispatcher is a mechanism to avoid the performance penalty of an > + * indirect call, which is expensive when retpolines are enabled. A > + * dispatch client registers a BPF program into the dispatcher, and if > + * there is available room in the dispatcher a direct call to the BPF > + * program will be generated. All calls to the BPF programs called via > + * the dispatcher will then be a direct call, instead of an > + * indirect. The dispatcher hijacks a trampoline function it via the > + * __fentry__ of the trampoline. The trampoline function has the > + * following signature: > + * > + * unsigned int trampoline(const void *xdp_ctx, > + * const struct bpf_insn *insnsi, > + * unsigned int (*bpf_func)(const void *, > + * const struct bpf_insn *)); > + */ Nit: s/xdp_ctx/ctx/ -Toke
