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Some of the recent changes to the kunit framework caused the stack usage for kunit_run_tests() to grow higher than most other kernel functions, which triggers a warning when CONFIG_FRAME_WARN is set to a relatively low value: lib/kunit/test.c: In function 'kunit_run_tests': lib/kunit/test.c:801:1: error: the frame size of 1312 bytes is larger than 1280 bytes [-Werror=frame-larger-than=] Split out the inner loop into a separate function to ensure that each function remains under the limit, and pass the kunit_result_stats structures by reference to avoid excessive copies. Fixed checkpatch warnings at commit time: Shuah Khan <skhan@linuxfoundation.org> Cc: Carlos Llamas <cmllamas@google.com> Signed-off-by: Arnd Bergmann <arnd@arndb.de> Reviewed-by: David Gow <davidgow@google.com> Signed-off-by: Shuah Khan <skhan@linuxfoundation.org>