RE: [PATCH] kprobes: fix compiler warning for !CONFIG_KPROBES_ON_FTRACE

[John Fastabend]

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>