Re: [PATCH V4] fix warning on kernel/trace/trace_branch.candtrace_hw_branches.c

[Steven Rostedt]

On Thu, 2009-10-08 at 09:37 +0800, Li Zefan wrote:
> >> diff --git a/kernel/trace/trace_hw_branches.c b/kernel/trace/trace_hw_branches.c
> >> index 23b6385..52a5903 100644
> >> --- a/kernel/trace/trace_hw_branches.c
> >> +++ b/kernel/trace/trace_hw_branches.c
> >> @@ -165,6 +165,7 @@ void trace_hw_branch(u64 from, u64 to)
> >>  	struct ftrace_event_call *call = &event_hw_branch;
> >>  	struct trace_array *tr = hw_branch_trace;
> >>  	struct ring_buffer_event *event;
> >> +	struct ring_buffer *buf;
> >>  	struct hw_branch_entry *entry;
> >>  	unsigned long irq1;
> >>  	int cpu;
> >> @@ -180,7 +181,8 @@ void trace_hw_branch(u64 from, u64 to)
> >>  	if (atomic_inc_return(&tr->data[cpu]->disabled) != 1)
> >>  		goto out;
> >>  
> >> -	event = trace_buffer_lock_reserve(tr, TRACE_HW_BRANCHES,
> >> +	buf = tr->buffer
> 
> And here won't compile..

Thanks,

I'll fix up the patch.

-- Steve

> 
> >> +	event = trace_buffer_lock_reserve(buf, TRACE_HW_BRANCHES,
> >>  					  sizeof(*entry), 0, 0);

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