From: "Stephan Müller" <smueller@chronox.de>
To: Ted Tso <tytso@mit.edu>
Cc: linux-kernel@vger.kernel.org, linux-crypto@vger.kernel.org
Subject: [PATCH 7/8] random: remove noop function call to xfer_secondary_pool
Date: Tue, 27 Dec 2016 23:41:46 +0100 [thread overview]
Message-ID: <9955153.9pz8KSq437@positron.chronox.de> (raw)
In-Reply-To: <3254875.f5A5oHPdxF@positron.chronox.de>
Since the introduction of the ChaCha20 DRNG, extract_entropy is only
invoked with the input_pool. For this entropy pool, xfer_secondary_pool
is a no-op and can therefore be safely removed.
Signed-off-by: Stephan Mueller <smueller@chronox.de>
---
drivers/char/random.c | 1 -
1 file changed, 1 deletion(-)
diff --git a/drivers/char/random.c b/drivers/char/random.c
index 89d67c0..7b72a01 100644
--- a/drivers/char/random.c
+++ b/drivers/char/random.c
@@ -1417,7 +1417,6 @@ static ssize_t extract_entropy(struct entropy_store *r, void *buf,
}
trace_extract_entropy(r->name, nbytes, ENTROPY_BITS(r), _RET_IP_);
- xfer_secondary_pool(r, nbytes);
nbytes = account(r, nbytes, min, reserved);
return _extract_entropy(r, buf, nbytes, fips_enabled);
--
2.9.3
next prev parent reply other threads:[~2016-12-27 22:45 UTC|newest]
Thread overview: 14+ messages / expand[flat|nested] mbox.gz Atom feed top
2016-12-27 22:38 [PATCH 0/8] random: cleanup of code after removal of nonblocking pool Stephan Müller
2016-12-27 22:39 ` [PATCH 1/8] random: remove stale maybe_reseed_primary_crng Stephan Müller
2016-12-27 22:39 ` [PATCH 2/8] random: remove stale urandom_init_wait Stephan Müller
2016-12-27 22:39 ` [PATCH 3/8] random: trigger random_ready callback upon crng_init == 1 Stephan Müller
2017-01-18 4:12 ` Theodore Ts'o
2017-01-18 17:09 ` Stephan Müller
2016-12-27 22:40 ` [PATCH 4/8] random: remove unused branch in hot code path Stephan Müller
2017-01-18 4:35 ` Theodore Ts'o
2017-04-27 11:23 ` Geert Uytterhoeven
2016-12-27 22:40 ` [PATCH 5/8] random: remove variable limit Stephan Müller
2016-12-27 22:41 ` [PATCH 6/8] random: fix comment for unused random_min_urandom_seed Stephan Müller
2016-12-27 22:41 ` Stephan Müller [this message]
2017-01-18 16:10 ` [PATCH 7/8] random: remove noop function call to xfer_secondary_pool Theodore Ts'o
2016-12-27 22:42 ` [PATCH 8/8] random: move FIPS continuous test to output functions Stephan Müller
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