This is a note to let you know that I've just added the patch titled random: Don't wake crng_init_wait when crng_init == 1 to the 4.19-stable tree which can be found at: http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=summary The filename of the patch is: random-don-t-wake-crng_init_wait-when-crng_init-1.patch and it can be found in the queue-4.19 subdirectory. If you, or anyone else, feels it should not be added to the stable tree, please let <stable@xxxxxxxxxxxxxxx> know about it. >From foo@baz Fri Jun 17 08:58:56 AM CEST 2022 From: Andy Lutomirski <luto@xxxxxxxxxx> Date: Mon, 23 Dec 2019 00:20:44 -0800 Subject: random: Don't wake crng_init_wait when crng_init == 1 From: Andy Lutomirski <luto@xxxxxxxxxx> commit 4c8d062186d9923c09488716b2fb1b829b5b8006 upstream. crng_init_wait is only used to wayt for crng_init to be set to 2, so there's no point to waking it when crng_init is set to 1. Remove the unnecessary wake_up_interruptible() call. Signed-off-by: Andy Lutomirski <luto@xxxxxxxxxx> Link: https://lore.kernel.org/r/6fbc0bfcbfc1fa2c76fd574f5b6f552b11be7fde.1577088521.git.luto@xxxxxxxxxx Signed-off-by: Theodore Ts'o <tytso@xxxxxxx> Signed-off-by: Jason A. Donenfeld <Jason@xxxxxxxxx> Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx> --- drivers/char/random.c | 1 - 1 file changed, 1 deletion(-) --- a/drivers/char/random.c +++ b/drivers/char/random.c @@ -965,7 +965,6 @@ static int crng_fast_load(const char *cp if (crng_init_cnt >= CRNG_INIT_CNT_THRESH) { invalidate_batched_entropy(); crng_init = 1; - wake_up_interruptible(&crng_init_wait); pr_notice("random: fast init done\n"); } return 1; Patches currently in stable-queue which might be from luto@xxxxxxxxxx are queue-4.19/random-remove-kernel.random.read_wakeup_threshold.patch queue-4.19/random-initialize-chacha20-constants-with-correct-endianness.patch queue-4.19/random-make-dev-random-be-almost-like-dev-urandom.patch queue-4.19/random-remove-batched-entropy-locking.patch queue-4.19/random-remove-the-blocking-pool.patch queue-4.19/random-ignore-grnd_random-in-getentropy-2.patch queue-4.19/random-delete-code-to-pull-data-into-pools.patch queue-4.19/random-don-t-wake-crng_init_wait-when-crng_init-1.patch queue-4.19/random-add-a-urandom_read_nowait-for-random-apis-that-don-t-warn.patch queue-4.19/random-remove-dead-code-left-over-from-blocking-pool.patch queue-4.19/random-add-grnd_insecure-to-return-best-effort-non-cryptographic-bytes.patch