Muchun Song wrote: > Fix compiler warning(as show below) for !CONFIG_KPROBES_ON_FTRACE. > > kernel/kprobes.c: In function 'kill_kprobe': > kernel/kprobes.c:1116:33: warning: statement with no effect > [-Wunused-value] > 1116 | #define disarm_kprobe_ftrace(p) (-ENODEV) > | ^ > kernel/kprobes.c:2154:3: note: in expansion of macro > 'disarm_kprobe_ftrace' > 2154 | disarm_kprobe_ftrace(p); > > Link: https://lore.kernel.org/r/20200805142136.0331f7ea@xxxxxxxxxxxxxxxx > > Reported-by: Stephen Rothwell <sfr@xxxxxxxxxxxxxxxx> > Fixes: 0cb2f1372baa ("kprobes: Fix NULL pointer dereference at kprobe_ftrace_handler") > Signed-off-by: Muchun Song <songmuchun@xxxxxxxxxxxxx> > --- Acked-by: John Fastabend <john.fastabend@xxxxxxxxx>