[patch 20/38] kasan: sw_tags: Replace get_cycles() by random_get_entropy()
Thomas Gleixner <[email protected]>
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Seeding the random state with get_cycles() is functionally equivalent on the architectures which provide get_cycles(), but it does not make sense semantically. Use random_get_entropy() instead, which is the proper interface. This is part of a larger effort to remove get_cycles() usage from non-architecture code. Signed-off-by: Thomas Gleixner <[email protected]> Cc: Andrey Ryabinin <[email protected]> Cc: [email protected] --- mm/kasan/sw_tags.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) --- a/mm/kasan/sw_tags.c +++ b/mm/kasan/sw_tags.c @@ -41,7 +41,7 @@ void __init kasan_init_sw_tags(void) int cpu; for_each_possible_cpu(cpu) - per_cpu(prng_state, cpu) = (u32)get_cycles(); + per_cpu(prng_state, cpu) = (u32)random_get_entropy(); kasan_init_tags(); kasan_enable();