diff options
Diffstat (limited to 'arch/arm/mach-rockchip/board.c')
| -rw-r--r-- | arch/arm/mach-rockchip/board.c | 11 |
1 files changed, 10 insertions, 1 deletions
diff --git a/arch/arm/mach-rockchip/board.c b/arch/arm/mach-rockchip/board.c index 3fadf7e4122..75d6693e28a 100644 --- a/arch/arm/mach-rockchip/board.c +++ b/arch/arm/mach-rockchip/board.c @@ -472,9 +472,18 @@ __weak int misc_init_r(void) __weak int board_rng_seed(struct abuf *buf) { struct udevice *dev; - size_t len = 0x8; + ulong len = env_get_ulong("rng_seed_size", 10, 64); u64 *data; + if (len < 64) { + /* + * rng_seed_size should be at least 32 bytes for Linux 5.19+, + * or 64 for older Linux kernel versions + */ + log_warning("Value for rng_seed_size (%lu) too low, Linux kernel RNG may fail to initialize early\n", + len); + } + data = malloc(len); if (!data) { printf("Out of memory\n"); |