From: miaoqing@codeaurora.org
To: kvalo@qca.qualcomm.com
Cc: linux-wireless@vger.kernel.org, ath9k-devel@qca.qualcomm.com,
linux-crypto@vger.kernel.org, smueller@chronox.de,
jason@lakedaemon.net, pouyans@qti.qualcomm.com,
Miaoqing Pan <miaoqing@codeaurora.org>
Subject: [PATCH 1/2] ath9k: change entropy formula for easier understanding
Date: Tue, 9 Aug 2016 15:02:26 +0800 [thread overview]
Message-ID: <1470726147-30095-1-git-send-email-miaoqing@codeaurora.org> (raw)
From: Miaoqing Pan <miaoqing@codeaurora.org>
The quality of ADC entropy is 10 bits of min-entropy for
a 32-bit value, change '(((x) * 8 * 320) >> 10)' to
'(((x) * 8 * 10) >> 5)' for easier understanding.
Signed-off-by: Miaoqing Pan <miaoqing@codeaurora.org>
---
drivers/net/wireless/ath/ath9k/rng.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/drivers/net/wireless/ath/ath9k/rng.c b/drivers/net/wireless/ath/ath9k/rng.c
index d38e50f..568b1c6 100644
--- a/drivers/net/wireless/ath/ath9k/rng.c
+++ b/drivers/net/wireless/ath/ath9k/rng.c
@@ -22,7 +22,7 @@
#include "ar9003_phy.h"
#define ATH9K_RNG_BUF_SIZE 320
-#define ATH9K_RNG_ENTROPY(x) (((x) * 8 * 320) >> 10) /* quality: 320/1024 */
+#define ATH9K_RNG_ENTROPY(x) (((x) * 8 * 10) >> 5) /* quality: 10/32 */
static int ath9k_rng_data_read(struct ath_softc *sc, u32 *buf, u32 buf_size)
{
--
1.9.1
next reply other threads:[~2016-08-09 7:02 UTC|newest]
Thread overview: 32+ messages / expand[flat|nested] mbox.gz Atom feed top
2016-08-09 7:02 miaoqing [this message]
2016-08-09 7:02 ` [PATCH 2/2] ath9k: disable RNG by default miaoqing
2016-08-09 7:14 ` Stephan Mueller
2016-08-09 7:35 ` Pan, Miaoqing
2016-08-09 8:07 ` Stephan Mueller
2016-08-09 8:58 ` Herbert Xu
2016-08-09 9:02 ` Stephan Mueller
2016-08-09 9:17 ` Herbert Xu
2016-08-09 9:37 ` Stephan Mueller
2016-08-09 9:46 ` Herbert Xu
2016-08-09 9:56 ` Stephan Mueller
2016-08-09 9:56 ` Herbert Xu
2016-08-09 10:06 ` Stephan Mueller
2016-08-09 10:24 ` Henrique de Moraes Holschuh
2016-08-09 17:51 ` Jason Cooper
2016-08-10 2:35 ` Pan, Miaoqing
2016-08-10 5:29 ` Stephan Mueller
2016-08-10 6:04 ` Pan, Miaoqing
2016-08-10 6:25 ` Stephan Mueller
2016-08-10 6:46 ` Pan, Miaoqing
2016-08-10 6:51 ` Stephan Mueller
2016-08-10 7:15 ` Pan, Miaoqing
2016-08-10 7:27 ` Stephan Mueller
2016-08-10 7:40 ` Pan, Miaoqing
2016-08-10 7:43 ` Pan, Miaoqing
2016-08-10 13:24 ` Jason Cooper
2016-08-11 2:54 ` miaoqing
2016-08-11 13:14 ` Jason Cooper
2016-08-09 17:48 ` Jason Cooper
2016-09-28 10:00 ` [2/2] " Kalle Valo
2016-09-27 14:53 ` [1/2] ath9k: change entropy formula for easier understanding Kalle Valo
2016-10-13 14:23 ` Kalle Valo
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