From patchwork Tue Dec 2 11:16:22 2014 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Markus Pargmann X-Patchwork-Id: 4286 Return-Path: Received-SPF: None (no SPF record) identity=mailfrom; client-ip=92.198.50.35; helo=metis.ext.pengutronix.de; envelope-from=mpa@pengutronix.de; receiver=b.a.t.m.a.n@lists.open-mesh.org Received: from metis.ext.pengutronix.de (metis.ext.pengutronix.de [92.198.50.35]) by open-mesh.org (Postfix) with ESMTPS id 5E58760166A for ; Tue, 2 Dec 2014 12:40:12 +0100 (CET) Received: from dude.hi.pengutronix.de ([2001:67c:670:100:1d::7]) by metis.ext.pengutronix.de with esmtp (Exim 4.72) (envelope-from ) id 1XvlYQ-0003LE-NQ; Tue, 02 Dec 2014 12:23:38 +0100 Received: from mpa by dude.hi.pengutronix.de with local (Exim 4.84) (envelope-from ) id 1XvlYP-0001Y8-Go; Tue, 02 Dec 2014 12:23:37 +0100 From: Markus Pargmann To: Marek Lindner , Simon Wunderlich , Antonio Quartulli Date: Tue, 2 Dec 2014 12:16:22 +0100 Message-Id: <1417519009-20699-5-git-send-email-mpa@pengutronix.de> X-Mailer: git-send-email 2.1.3 In-Reply-To: <1417519009-20699-1-git-send-email-mpa@pengutronix.de> References: <1417519009-20699-1-git-send-email-mpa@pengutronix.de> X-SA-Exim-Connect-IP: 2001:67c:670:100:1d::7 X-SA-Exim-Mail-From: mpa@pengutronix.de X-SA-Exim-Scanned: No (on metis.ext.pengutronix.de); SAEximRunCond expanded to false X-PTX-Original-Recipient: b.a.t.m.a.n@lists.open-mesh.org Cc: b.a.t.m.a.n@lists.open-mesh.org Subject: [B.A.T.M.A.N.] [PATCH 04/31] batman-adv: iv_ogm, divide and round for ring buffer avg X-BeenThere: b.a.t.m.a.n@lists.open-mesh.org X-Mailman-Version: 2.1.15 Precedence: list Reply-To: The list for a Better Approach To Mobile Ad-hoc Networking List-Id: The list for a Better Approach To Mobile Ad-hoc Networking List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Tue, 02 Dec 2014 11:40:12 -0000 Instead of the normal division which looses precision, use a division with rounding. Signed-off-by: Markus Pargmann --- bat_iv_ogm.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/bat_iv_ogm.c b/bat_iv_ogm.c index 1458ecfa66b8..10eada270015 100644 --- a/bat_iv_ogm.c +++ b/bat_iv_ogm.c @@ -82,7 +82,7 @@ static uint8_t batadv_ring_buffer_avg(const uint8_t lq_recv[]) if (count == 0) return 0; - return (uint8_t)(sum / count); + return (uint8_t)DIV_ROUND_CLOSEST(sum, count); } /**