linux/arch/riscv
Jason A. Donenfeld 6d01238623 riscv: use fallback for random_get_entropy() instead of zero
In the event that random_get_entropy() can't access a cycle counter or
similar, falling back to returning 0 is really not the best we can do.
Instead, at least calling random_get_entropy_fallback() would be
preferable, because that always needs to return _something_, even
falling back to jiffies eventually. It's not as though
random_get_entropy_fallback() is super high precision or guaranteed to
be entropic, but basically anything that's not zero all the time is
better than returning zero all the time.

Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: Arnd Bergmann <arnd@arndb.de>
Cc: Paul Walmsley <paul.walmsley@sifive.com>
Acked-by: Palmer Dabbelt <palmer@rivosinc.com>
Reviewed-by: Palmer Dabbelt <palmer@rivosinc.com>
Signed-off-by: Jason A. Donenfeld <Jason@zx2c4.com>
2022-05-13 23:59:23 +02:00
..
boot riscv: dts: microchip: reparent mpfs clocks 2022-04-22 18:40:30 -07:00
configs RISC-V: configs: Configs that had RPMSG_CHAR now get RPMSG_CTRL 2022-04-26 08:19:53 -07:00
errata riscv: errata: alternative: mark vendor_patch_func __initdata 2022-01-09 11:02:46 -08:00
include riscv: use fallback for random_get_entropy() instead of zero 2022-05-13 23:59:23 +02:00
kernel riscv: patch_text: Fixup last cpu should be master 2022-04-22 08:29:24 -07:00
kvm Merge branch 'kvm-fixes-for-5.18-rc5' into HEAD 2022-04-29 12:39:34 -04:00
lib riscv: Fixed misaligned memory access. Fixed pointer comparison. 2022-03-10 10:24:04 -08:00
mm RISC-V: relocate DTB if it's outside memory region 2022-04-29 07:59:18 -07:00
net riscv: bpf: Fix eBPF's exception tables 2022-01-19 10:50:02 -08:00
Kbuild kbuild: use more subdir- for visiting subdirectories while cleaning 2021-10-24 13:49:46 +09:00
Kconfig RISC-V CPU Idle Support 2022-03-30 16:17:54 -07:00
Kconfig.debug RISC-V: Remove EARLY_PRINTK support 2018-12-17 10:23:46 -08:00
Kconfig.erratas riscv: alternative only works on !XIP_KERNEL 2022-03-10 10:05:19 -08:00
Kconfig.socs RISC-V: cpuidle: fix Kconfig select for RISCV_SBI_CPUIDLE 2022-04-21 15:10:47 -07:00
Makefile riscv: fix build with binutils 2.38 2022-02-10 09:17:01 -08:00