tracing/function-graph-tracer: fix 'flags' variable mismatch

this warning:

 kernel/trace/trace.c: In function ‘trace_vprintk’:
 kernel/trace/trace.c:3626: warning: ‘flags’ may be used uninitialized in this function

shows some confusion about irq_flags / flags use here. We already have
irq_flags so remove the extra flags variable.

Signed-off-by: Ingo Molnar <mingo@elte.hu>

diff --git a/kernel/trace/trace.c b/kernel/trace/trace.c
index 0b8659b..8ebe007 100644 (file)
--- a/kernel/trace/trace.c
+++ b/kernel/trace/trace.c
@@ -3596,9 +3596,9 @@ int trace_vprintk(unsigned long ip, int depth, const char *fmt, va_list args)
        struct ring_buffer_event *event;
        struct trace_array *tr = &global_trace;
        struct trace_array_cpu *data;
-       struct print_entry *entry;
-       unsigned long flags, irq_flags;
        int cpu, len = 0, size, pc;
+       struct print_entry *entry;
+       unsigned long irq_flags;
 
        if (tracing_disabled || tracing_selftest_running)
                return 0;
@@ -3623,7 +3623,7 @@ int trace_vprintk(unsigned long ip, int depth, const char *fmt, va_list args)
        if (!event)
                goto out_unlock;
        entry = ring_buffer_event_data(event);
-       tracing_generic_entry_update(&entry->ent, flags, pc);
+       tracing_generic_entry_update(&entry->ent, irq_flags, pc);
        entry->ent.type                 = TRACE_PRINT;
        entry->ip                       = ip;
        entry->depth                    = depth;