Messages in this thread Patch in this message | | | Date | Mon, 04 Mar 2013 12:20:09 -0500 | From | Steven Rostedt <> | Subject | [for-next][PATCH 4/6] tracing: Add __per_cpu annotation to trace array percpu data pointer |
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From: "Steven Rostedt (Red Hat)" <srostedt@redhat.com>
With the conversion of the data array to per cpu, sparse now complains about the use of per_cpu_ptr() on the variable. But The variable is allocated with alloc_percpu() and is fine to use. But since the structure that contains the data variable does not annotate it as such, sparse gives out a lot of false warnings.
Reported-by: Fengguang Wu <fengguang.wu@intel.com> Signed-off-by: Steven Rostedt <rostedt@goodmis.org> --- kernel/trace/trace.h | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/kernel/trace/trace.h b/kernel/trace/trace.h index c597523..50a9c81 100644 --- a/kernel/trace/trace.h +++ b/kernel/trace/trace.h @@ -198,7 +198,7 @@ struct trace_array { struct list_head systems; struct list_head events; struct task_struct *waiter; - struct trace_array_cpu *data; + struct trace_array_cpu __percpu *data; }; enum { -- 1.7.10.4
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