On Fri, Apr 17, 2026 at 1:13 AM Miroslav Benes <[email protected]> wrote: > > Hi, > > On Wed, 15 Apr 2026, Song Liu wrote: > > > Add a sample module that demonstrates how BPF struct_ops can work > > together with kernel livepatch. The module livepatches > > cmdline_proc_show() and delegates the output to a BPF struct_ops > > callback. When no BPF program is attached, a fallback message is > > shown; when a BPF struct_ops program is attached, it controls the > > /proc/cmdline output via the bpf_klp_seq_write kfunc. > > > > This builds on the existing livepatch-sample.c pattern but shows how > > livepatch and BPF struct_ops can be combined to make livepatched > > behavior programmable from userspace. > > > > The module is built when both CONFIG_SAMPLE_LIVEPATCH and > > CONFIG_BPF_JIT are enabled. > > > > Signed-off-by: Song Liu <[email protected]> > > Interesting. It does not make me comfortable to be honest. Is this > something we want to advertise through samples?
I can understand your concern. We don't have to add these to the samples. > Sashiko has comments... > https://sashiko.dev/#/patchset/20260416001628.2062468-1-song%40kernel.org These are valid points. Thanks, Song
