From mboxrd@z Thu Jan 1 00:00:00 1970 Return-path: Received: from smtp.codeaurora.org ([198.145.29.96]:33158 "EHLO smtp.codeaurora.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751220AbcHIHCj (ORCPT ); Tue, 9 Aug 2016 03:02:39 -0400 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 Subject: [PATCH 1/2] ath9k: change entropy formula for easier understanding Date: Tue, 9 Aug 2016 15:02:26 +0800 Message-Id: <1470726147-30095-1-git-send-email-miaoqing@codeaurora.org> (sfid-20160809_090243_455911_0E5E2BDE) Sender: linux-wireless-owner@vger.kernel.org List-ID: From: Miaoqing Pan 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 --- 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