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2023-12-09 b22da3d8526a935aa31e086e63f60ff3246cb61c

 kernel/arch/arm/include/asm/timex.h
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@@ -1,11 +1,8 @@
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+/* SPDX-License-Identifier: GPL-2.0-only */
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 /*
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  *  arch/arm/include/asm/timex.h
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  *
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  *  Copyright (C) 1997,1998 Russell King
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- *
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- * This program is free software; you can redistribute it and/or modify
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- * it under the terms of the GNU General Public License version 2 as
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- * published by the Free Software Foundation.
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  *
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  *  Architecture Specific TIME specifications
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  */
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@@ -14,5 +11,6 @@
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 typedef unsigned long cycles_t;
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 #define get_cycles()	({ cycles_t c; read_current_timer(&c) ? 0 : c; })
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+#define random_get_entropy() (((unsigned long)get_cycles()) ?: random_get_entropy_fallback())
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 #endif