From: Steven Rostedt <[email protected]> There are a few generic events that may only be used by modules. They are defined and then set with EXPORT_TRACEPOINT*(). Mark events that are exported as being used, even though they still waste memory in the kernel proper.
Signed-off-by: Steven Rostedt (Google) <[email protected]> --- include/linux/tracepoint.h | 6 ++++-- 1 file changed, 4 insertions(+), 2 deletions(-) diff --git a/include/linux/tracepoint.h b/include/linux/tracepoint.h index 1e53d3626c78..8a56f3278b1b 100644 --- a/include/linux/tracepoint.h +++ b/include/linux/tracepoint.h @@ -227,8 +227,8 @@ static inline struct tracepoint *tracepoint_ptr_deref(tracepoint_ptr_t *p) * defined tracepoints are used. It is discarded after the build. */ # define TRACEPOINT_CHECK(name) \ - static const char __used __section("__tracepoint_check") __trace_check[] = \ - #name; + static const char __used __section("__tracepoint_check") \ + __trace_check_##name[] = #name; /* * Make sure the alignment of the structure in the __tracepoints section will @@ -382,10 +382,12 @@ static inline struct tracepoint *tracepoint_ptr_deref(tracepoint_ptr_t *p) __DEFINE_TRACE_EXT(_name, NULL, PARAMS(_proto), PARAMS(_args)); #define EXPORT_TRACEPOINT_SYMBOL_GPL(name) \ + TRACEPOINT_CHECK(name) \ EXPORT_SYMBOL_GPL(__tracepoint_##name); \ EXPORT_SYMBOL_GPL(__traceiter_##name); \ EXPORT_STATIC_CALL_GPL(tp_func_##name) #define EXPORT_TRACEPOINT_SYMBOL(name) \ + TRACEPOINT_CHECK(name) \ EXPORT_SYMBOL(__tracepoint_##name); \ EXPORT_SYMBOL(__traceiter_##name); \ EXPORT_STATIC_CALL(tp_func_##name) -- 2.51.0
