diff options
Diffstat (limited to 'drivers/char/random.c')
| -rw-r--r-- | drivers/char/random.c | 8 |
1 files changed, 8 insertions, 0 deletions
diff --git a/drivers/char/random.c b/drivers/char/random.c index 23ee76bbb4aa..800a05bd2c69 100644 --- a/drivers/char/random.c +++ b/drivers/char/random.c @@ -867,6 +867,14 @@ void __init random_init_early(const char *command_line) unsigned long entropy[BLAKE2S_BLOCK_SIZE / sizeof(long)]; size_t i, longs, arch_bits; + /* + * If we were initialized by the bootloader before jump labels are + * initialized, then we should enable the static branch here, where + * it's guaranteed that jump labels have been initialized. + */ + if (!static_branch_likely(&crng_is_ready) && crng_init >= CRNG_READY) + crng_set_ready(NULL); + #if defined(LATENT_ENTROPY_PLUGIN) static const u8 compiletime_seed[BLAKE2S_BLOCK_SIZE] __initconst __latent_entropy; _mix_pool_bytes(compiletime_seed, sizeof(compiletime_seed)); |