Messages in this thread | | | Subject | Re: [PATCH v10 3/5] bpf: add a bpf_override_function helper | From | Alexei Starovoitov <> | Date | Fri, 15 Dec 2017 12:34:18 -0800 |
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On 12/15/17 11:12 AM, Josef Bacik wrote: > +#ifdef CONFIG_BPF_KPROBE_OVERRIDE > +BPF_CALL_2(bpf_override_return, struct pt_regs *, regs, unsigned long, rc) > +{ > + __this_cpu_write(bpf_kprobe_override, 1); > + regs_set_return_value(regs, rc); > + arch_ftrace_kprobe_override_function(regs); > + return 0; > +}
since you're doing a respin can you adopt the change I did to make this helper fail at load time if that #config is not set instead of runtime?
Also how big is the v9-v10 change ? May be do it as separate patch, since previous set already sitting in bpf-next and there are patches on top?
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