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
