linux-next: build warning after merge of the ftrace tree

From: Stephen Rothwell
Date: Wed Aug 05 2020 - 00:22:05 EST


Hi all,

After merging the ftrace tree, today's linux-next build (powerpc
ppc64_defconfig) produced this warning:

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);
| ^~~~~~~~~~~~~~~~~~~~

Introduced by commit

0cb2f1372baa ("kprobes: Fix NULL pointer dereference at kprobe_ftrace_handler")

--
Cheers,
Stephen Rothwell

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