* [PATCH] bpf: fix BPF_KPROBE_OVERRIDE dependencies
@ 2017-12-19 10:12 Arnd Bergmann
2017-12-19 23:11 ` Alexei Starovoitov
0 siblings, 1 reply; 2+ messages in thread
From: Arnd Bergmann @ 2017-12-19 10:12 UTC (permalink / raw)
To: Steven Rostedt, Ingo Molnar
Cc: Arnd Bergmann, Alexei Starovoitov, Josef Bacik, linux-kernel
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 <arnd@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
^ permalink raw reply related [flat|nested] 2+ messages in thread
* Re: [PATCH] bpf: fix BPF_KPROBE_OVERRIDE dependencies
2017-12-19 10:12 [PATCH] bpf: fix BPF_KPROBE_OVERRIDE dependencies Arnd Bergmann
@ 2017-12-19 23:11 ` Alexei Starovoitov
0 siblings, 0 replies; 2+ messages in thread
From: Alexei Starovoitov @ 2017-12-19 23:11 UTC (permalink / raw)
To: Arnd Bergmann
Cc: Steven Rostedt, Ingo Molnar, Alexei Starovoitov, Josef Bacik,
linux-kernel, Daniel Borkmann, David S. Miller
On Tue, Dec 19, 2017 at 11:12:04AM +0100, Arnd Bergmann wrote:
> 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 <arnd@arndb.de>
lgtm.
Could you please resubmit it to netdev targeting bpf-next tree?
Thanks!
> ---
> 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
>
^ permalink raw reply [flat|nested] 2+ messages in thread
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2017-12-19 10:12 [PATCH] bpf: fix BPF_KPROBE_OVERRIDE dependencies Arnd Bergmann
2017-12-19 23:11 ` Alexei Starovoitov
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