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1a6fa10640
The 'duration' variable is referenced in the CHECK() macro, and there are
some uses of the macro before 'duration' is set. The clang compiler
(validly) complains about this.
Sample error:
.../selftests/bpf/prog_tests/fexit_test.c:23:6: warning: variable 'duration' is uninitialized when used here [-Wuninitialized]
if (CHECK(err, "prog_load sched cls", "err %d errno %d\n", err, errno))
^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
.../selftests/bpf/test_progs.h:134:25: note: expanded from macro 'CHECK'
if (CHECK(err, "prog_load sched cls", "err %d errno %d\n", err, errno))
^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
_CHECK(condition, tag, duration, format)
^~~~~~~~
Signed-off-by: John Sperbeck <jsperbeck@google.com>
Signed-off-by: Stanislav Fomichev <sdf@google.com>
Signed-off-by: Daniel Borkmann <daniel@iogearbox.net>
Acked-by: Martin KaFai Lau <kafai@fb.com>
Link: https://lore.kernel.org/bpf/20200123235144.93610-1-sdf@google.com
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