Messages in this thread Patch in this message | | | From | Jonas Rabenstein <> | Subject | [PATCH] bpf: mark get_entry_ip as __maybe_unused | Date | Thu, 3 Nov 2022 16:03:03 +0100 |
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Commit c09eb2e578eb1668bbc ("bpf: Adjust kprobe_multi entry_ip for CONFIG_X86_KERNEL_IBT") introduced the get_entry_ip() function. Depending on CONFIG_X86_KERNEL_IBT it is a static function or only a macro definition. The only user of this symbol so far is in kprobe_multi_link_handler() if CONFIG_FPROBE is enabled. If CONFIG_FROBE is not set, the symbol is not used and - depending on CONFIG_X86_KERNEL_IBT - a warning for get_entry_ip() is emitted. To solve this, the function should be marked as __maybe_unused.
Signed-off-by: Jonas Rabenstein <rabenstein@cs.fau.de> --- kernel/trace/bpf_trace.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/kernel/trace/bpf_trace.c b/kernel/trace/bpf_trace.c index f2d8d070d024..19131aae0bc3 100644 --- a/kernel/trace/bpf_trace.c +++ b/kernel/trace/bpf_trace.c @@ -1032,7 +1032,7 @@ static const struct bpf_func_proto bpf_get_func_ip_proto_tracing = { }; #ifdef CONFIG_X86_KERNEL_IBT -static unsigned long get_entry_ip(unsigned long fentry_ip) +static unsigned long __maybe_unused get_entry_ip(unsigned long fentry_ip) { u32 instr; -- 2.37.4
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