add new system file

hc

2024-02-20 102a0743326a03cd1a1202ceda21e175b7d3575c

 kernel/arch/sh/mm/cache-j2.c
..
..
@@ -1,9 +1,8 @@
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+// SPDX-License-Identifier: GPL-2.0-only
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 /*
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  * arch/sh/mm/cache-j2.c
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  *
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  * Copyright (C) 2015-2016 Smart Energy Instruments, Inc.
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- *
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- * Released under the terms of the GNU GPL v2.0.
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  */
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 #include <linux/init.h>