tracing, alpha: fix build: add missing #ifdef CONFIG_STACKTRACE
There are architectures that still have no stacktrace support. Signed-off-by: Török Edwin <edwintorok@gmail.com> Signed-off-by: Ingo Molnar <mingo@elte.hu>
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@ -983,6 +983,7 @@ static void ftrace_trace_userstack(struct trace_array *tr,
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struct trace_array_cpu *data,
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unsigned long flags, int pc)
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{
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#ifdef CONFIG_STACKTRACE
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struct ring_buffer_event *event;
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struct userstack_entry *entry;
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struct stack_trace trace;
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@ -1008,6 +1009,7 @@ static void ftrace_trace_userstack(struct trace_array *tr,
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save_stack_trace_user(&trace);
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ring_buffer_unlock_commit(tr->buffer, event, irq_flags);
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#endif
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}
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void __trace_userstack(struct trace_array *tr,
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