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kunit: add macro to allow conditionally exposing static symbols to tests
[ Upstream commit9c988fae6f
] Create two macros: VISIBLE_IF_KUNIT - A macro that sets symbols to be static if CONFIG_KUNIT is not enabled. Otherwise if CONFIG_KUNIT is enabled there is no change to the symbol definition. EXPORT_SYMBOL_IF_KUNIT(symbol) - Exports symbol into EXPORTED_FOR_KUNIT_TESTING namespace only if CONFIG_KUNIT is enabled. Must use MODULE_IMPORT_NS(EXPORTED_FOR_KUNIT_TESTING) in test file in order to use symbols. Signed-off-by: Rae Moar <rmoar@google.com> Reviewed-by: John Johansen <john.johansen@canonical.com> Reviewed-by: David Gow <davidgow@google.com> Signed-off-by: Shuah Khan <skhan@linuxfoundation.org> Stable-dep-of:8884ba0778
("apparmor: fix invalid reference on profile->disconnected") Signed-off-by: Sasha Levin <sashal@kernel.org>
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include/kunit/visibility.h
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33
include/kunit/visibility.h
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/* SPDX-License-Identifier: GPL-2.0 */
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/*
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* KUnit API to allow symbols to be conditionally visible during KUnit
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* testing
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*
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* Copyright (C) 2022, Google LLC.
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* Author: Rae Moar <rmoar@google.com>
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*/
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#ifndef _KUNIT_VISIBILITY_H
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#define _KUNIT_VISIBILITY_H
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#if IS_ENABLED(CONFIG_KUNIT)
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/**
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* VISIBLE_IF_KUNIT - A macro that sets symbols to be static if
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* CONFIG_KUNIT is not enabled. Otherwise if CONFIG_KUNIT is enabled
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* there is no change to the symbol definition.
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*/
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#define VISIBLE_IF_KUNIT
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/**
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* EXPORT_SYMBOL_IF_KUNIT(symbol) - Exports symbol into
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* EXPORTED_FOR_KUNIT_TESTING namespace only if CONFIG_KUNIT is
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* enabled. Must use MODULE_IMPORT_NS(EXPORTED_FOR_KUNIT_TESTING)
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* in test file in order to use symbols.
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*/
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#define EXPORT_SYMBOL_IF_KUNIT(symbol) EXPORT_SYMBOL_NS(symbol, \
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EXPORTED_FOR_KUNIT_TESTING)
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#else
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#define VISIBLE_IF_KUNIT static
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#define EXPORT_SYMBOL_IF_KUNIT(symbol)
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#endif
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#endif /* _KUNIT_VISIBILITY_H */
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