init: Have initcall_debug still work without CONFIG_TRACEPOINTS
Add macros around the initcall_debug tracepoint code to have the code to default back to the old method if CONFIG_TRACEPOINTS is not enabled. Signed-off-by: Steven Rostedt (VMware) <rostedt@goodmis.org>
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4e37958d12
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28
init/main.c
28
init/main.c
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@ -496,7 +496,14 @@ void __init __weak mem_encrypt_init(void) { }
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bool initcall_debug;
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core_param(initcall_debug, initcall_debug, bool, 0644);
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#ifdef TRACEPOINTS_ENABLED
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static void __init initcall_debug_enable(void);
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#else
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static inline void initcall_debug_enable(void)
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{
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}
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#endif
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/*
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* Set up kernel memory allocators
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@ -832,6 +839,7 @@ trace_initcall_finish_cb(void *data, initcall_t fn, int ret)
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static ktime_t initcall_calltime;
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#ifdef TRACEPOINTS_ENABLED
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static void __init initcall_debug_enable(void)
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{
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int ret;
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@ -842,6 +850,22 @@ static void __init initcall_debug_enable(void)
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&initcall_calltime);
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WARN(ret, "Failed to register initcall tracepoints\n");
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}
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# define do_trace_initcall_start trace_initcall_start
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# define do_trace_initcall_finish trace_initcall_finish
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#else
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static inline void do_trace_initcall_start(initcall_t fn)
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{
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if (!initcall_debug)
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return;
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trace_initcall_start_cb(&initcall_calltime, fn);
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}
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static inline void do_trace_initcall_finish(initcall_t fn, int ret)
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{
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if (!initcall_debug)
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return;
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trace_initcall_finish_cb(&initcall_calltime, fn, ret);
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}
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#endif /* !TRACEPOINTS_ENABLED */
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int __init_or_module do_one_initcall(initcall_t fn)
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{
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@ -852,9 +876,9 @@ int __init_or_module do_one_initcall(initcall_t fn)
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if (initcall_blacklisted(fn))
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return -EPERM;
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trace_initcall_start(fn);
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do_trace_initcall_start(fn);
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ret = fn();
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trace_initcall_finish(fn, ret);
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do_trace_initcall_finish(fn, ret);
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msgbuf[0] = 0;
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