A helper function defined but not used. This, in particular,
prevents kernel builds with clang, `make W=1` and CONFIG_WERROR=y:

kernel/trace/trace.c:2229:19: error: unused function 'run_tracer_selftest' 
[-Werror,-Wunused-function]
 2229 | static inline int run_tracer_selftest(struct tracer *type)
      |                   ^~~~~~~~~~~~~~~~~~~

Fix this by dropping unused functions.

See also commit 6863f5643dd7 ("kbuild: allow Clang to find unused static
inline functions for W=1 build").

Signed-off-by: Andy Shevchenko <andriy.shevche...@linux.intel.com>
---
 kernel/trace/trace.c | 4 ----
 1 file changed, 4 deletions(-)

diff --git a/kernel/trace/trace.c b/kernel/trace/trace.c
index edf6bc817aa1..c3b2c7dfadef 100644
--- a/kernel/trace/trace.c
+++ b/kernel/trace/trace.c
@@ -2226,10 +2226,6 @@ static __init int init_trace_selftests(void)
 }
 core_initcall(init_trace_selftests);
 #else
-static inline int run_tracer_selftest(struct tracer *type)
-{
-       return 0;
-}
 static inline int do_run_tracer_selftest(struct tracer *type)
 {
        return 0;
-- 
2.43.0.rc1.1336.g36b5255a03ac


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