[patch 30/38] openrisc: Select ARCH_HAS_RANDOM_ENTROPY
Thomas Gleixner <[email protected]>
| Newsgroups | gmane.linux.ports.riscv,gmane.linux.kernel,gmane.linux.network,gmane.linux.kernel.wireless.general,gmane.linux.kernel.cryptoapi,gmane.linux.kernel.mm,gmane.comp.file-systems.ext4,gmane.linux.hams,gmane.linux.ports.alpha,gmane.linux.ports.arm.kernel,gmane.linux.ports.parisc,gmane.linux.ports.ppc64.devel,gmane.linux.ports.sparc |
|---|---|
| Message-ID | <[email protected]> |
The only remaining non-architecture usage of get_cycles() is to provide random_get_entropy(). Switch openrisc over to the new scheme of selecting ARCH_HAS_RANDOM_ENTROPY and providing random_get_entropy() in asm/random.h. Add 'asm/timex.h' includes to the relevant files, so the global include can be removed once all architectures are converted over. Signed-off-by: Thomas Gleixner <[email protected]> Cc: Jonas Bonn <[email protected]> Cc: [email protected] --- arch/openrisc/Kconfig | 1 + arch/openrisc/include/asm/random.h | 12 ++++++++++++ arch/openrisc/include/asm/timex.h | 5 ----- arch/openrisc/lib/delay.c | 1 + 4 files changed, 14 insertions(+), 5 deletions(-) --- a/arch/openrisc/Kconfig +++ b/arch/openrisc/Kconfig @@ -10,6 +10,7 @@ config OPENRISC select ARCH_HAS_DELAY_TIMER select ARCH_HAS_DMA_SET_UNCACHED select ARCH_HAS_DMA_CLEAR_UNCACHED + select ARCH_HAS_RANDOM_ENTROPY select ARCH_HAS_SYNC_DMA_FOR_DEVICE select GENERIC_BUILTIN_DTB select COMMON_CLK --- /dev/null +++ b/arch/openrisc/include/asm/random.h @@ -0,0 +1,12 @@ +/* SPDX-License-Identifier: GPL-2.0-or-later */ +#ifndef __ASM_OPENRISC_RANDOM_H +#define __ASM_OPENRISC_RANDOM_H + +#include <asm/timex.h> + +static inline unsigned long random_get_entropy(void) +{ + return get_cycles(); +} + +#endif --- a/arch/openrisc/include/asm/timex.h +++ b/arch/openrisc/include/asm/timex.h @@ -9,13 +9,9 @@ * OpenRISC implementation: * Copyright (C) 2010-2011 Jonas Bonn <[email protected]> */ - #ifndef __ASM_OPENRISC_TIMEX_H #define __ASM_OPENRISC_TIMEX_H -#define get_cycles get_cycles - -#include <asm-generic/timex.h> #include <asm/spr.h> #include <asm/spr_defs.h> @@ -23,6 +19,5 @@ static inline cycles_t get_cycles(void) { return mfspr(SPR_TTCR); } -#define get_cycles get_cycles #endif --- a/arch/openrisc/lib/delay.c +++ b/arch/openrisc/lib/delay.c @@ -18,6 +18,7 @@ #include <linux/init.h> #include <asm/param.h> +#include <asm/timex.h> #include <asm/processor.h> bool delay_read_timer(unsigned long *timer_value)