[PATCH] bpf: fix BPF_KPROBE_OVERRIDE dependencies

[Arnd Bergmann]

CONFIG_BPF_KPROBE_OVERRIDE causes a link failure when CONFIG_KPROBE_EVENTS
is disabled:

kernel/trace/bpf_trace.o: In function `bpf_override_return':
(.text+0x172): undefined reference to `bpf_kprobe_override'

This adds it to the list of dependencies.

Fixes: 9802d86585db ("bpf: add a bpf_override_function helper")
Signed-off-by: Arnd Bergmann <a...@arndb.de>
---
 kernel/trace/Kconfig | 1 +
 1 file changed, 1 insertion(+)

diff --git a/kernel/trace/Kconfig b/kernel/trace/Kconfig
index ace4547b7564..0d83668652ef 100644
--- a/kernel/trace/Kconfig
+++ b/kernel/trace/Kconfig
@@ -534,6 +534,7 @@ config FUNCTION_PROFILER
 config BPF_KPROBE_OVERRIDE
        bool "Enable BPF programs to override a kprobed function"
        depends on BPF_EVENTS
+       depends on KPROBE_EVENTS
        depends on KPROBES_ON_FTRACE
        depends on HAVE_KPROBE_OVERRIDE
        depends on DYNAMIC_FTRACE_WITH_REGS
-- 
2.9.0