Stephen Rothwell wrote:
> Hi all,
>
> Today's linux-next build (x86_64 allmodconfig) failed like this:
>
> kernel/trace/trace_functions_graph.c: In function 'graph_trace_close':
> kernel/trace/trace_functions_graph.c:836: error: implicit declaration of function 'percpu_free'
>
> The direct cause is commit 422d3c7a577b15e1384c9d4e72a9540896b685fa
> ("tracing: current tip/master can't enable ftrace") from the tracing tree
> which exposed an interaction between commit
> f2a8205c4ef1af917d175c36a4097ae5587791c8 ("percpu: kill percpu_alloc()
> and friends") from the tip-core tree and commit
> 9005f3ebebfcfe9ccd731d16c468907a35ac1f9a ("tracing/function-graph-tracer:
> various fixes and features") from the tracing tree.
>
> I have reverted commit 422d3c7a577b15e1384c9d4e72a9540896b685fa for
> today. (As a side note, that commit has no Signed-off-by ...)
Just in case someone doesn't know yet. The remedy is using
free_percpu() instead of percpu_free().
Thanks.
--
tejun
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