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Date: Wed, 12 Sep 2018 07:53:56 -0700
From: Guenter Roeck <linux@roeck-us.net>
To: stable@vger.kernel.org
Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Subject: perf fails to build in v4.18.y.queue
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Building x86_64:tools/perf ... failed
--------------
Error log:

tools/perf/util/python.c:
In function ‘get_md’:
tools/perf/util/python.c:987:9: error: ‘struct perf_mmap’ has no member named ‘cpu’

At top level:
cc1: error: unrecognized command line option ‘-Wno-cast-function-type’ [-Werror]
cc1: all warnings being treated as errors error: command 'gcc' failed with exit status 1

Guenter