From patchwork Wed Aug 25 09:37:54 2021 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: P Praneesh X-Patchwork-Id: 503235 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-16.8 required=3.0 tests=BAYES_00,DKIM_SIGNED, DKIM_VALID, HEADER_FROM_DIFFERENT_DOMAINS, INCLUDES_CR_TRAILER, INCLUDES_PATCH, MAILING_LIST_MULTI, SPF_HELO_NONE, SPF_PASS, USER_AGENT_GIT autolearn=ham autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id 21049C43214 for ; Wed, 25 Aug 2021 09:39:28 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 0A3526113C for ; Wed, 25 Aug 2021 09:39:28 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S239637AbhHYJkM (ORCPT ); Wed, 25 Aug 2021 05:40:12 -0400 Received: from m43-7.mailgun.net ([69.72.43.7]:16244 "EHLO m43-7.mailgun.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S239882AbhHYJkL (ORCPT ); Wed, 25 Aug 2021 05:40:11 -0400 DKIM-Signature: a=rsa-sha256; v=1; c=relaxed/relaxed; d=mg.codeaurora.org; q=dns/txt; s=smtp; t=1629884366; h=References: In-Reply-To: Message-Id: Date: Subject: Cc: To: From: Sender; bh=9gSGz8zPNFyGR2n0P44qKCJtAumjLBinCPzX+XYq2GQ=; b=wfTYOXexsznThCzXd3u2as3mbFdvxX6tIhSyiB2H12xe4SijNNMdAGIX9Ekf6EYtygJHzLE6 4Mats294xfFfFFFJgN/5QDo1WMv1higPKHEvaliEcwIW2v94iYizoiL13sFqGOyzQReETQ9i O09SVUlgefszFqsKVr7SDtjteiY= X-Mailgun-Sending-Ip: 69.72.43.7 X-Mailgun-Sid: WyI3YTAwOSIsICJsaW51eC13aXJlbGVzc0B2Z2VyLmtlcm5lbC5vcmciLCAiYmU5ZTRhIl0= Received: from smtp.codeaurora.org (ec2-35-166-182-171.us-west-2.compute.amazonaws.com [35.166.182.171]) by smtp-out-n06.prod.us-west-2.postgun.com with SMTP id 61260fbdd15f4d68a2a74d1e (version=TLS1.2, cipher=TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256); Wed, 25 Aug 2021 09:39:09 GMT Sender: ppranees=codeaurora.org@mg.codeaurora.org Received: by smtp.codeaurora.org (Postfix, from userid 1001) id E3C54C43460; Wed, 25 Aug 2021 09:39:09 +0000 (UTC) Received: from ppranees-linux.qualcomm.com (blr-c-bdr-fw-01_GlobalNAT_AllZones-Outside.qualcomm.com [103.229.19.19]) (using TLSv1.2 with cipher ECDHE-RSA-AES128-SHA256 (128/128 bits)) (No client certificate requested) (Authenticated sender: ppranees) by smtp.codeaurora.org (Postfix) with ESMTPSA id 2C684C4360D; Wed, 25 Aug 2021 09:39:06 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.4.1 smtp.codeaurora.org 2C684C4360D Authentication-Results: aws-us-west-2-caf-mail-1.web.codeaurora.org; dmarc=none (p=none dis=none) header.from=codeaurora.org Authentication-Results: aws-us-west-2-caf-mail-1.web.codeaurora.org; spf=fail smtp.mailfrom=codeaurora.org From: P Praneesh To: kvalo@codeaurora.org Cc: ath11k@lists.infradead.org, linux-wireless@vger.kernel.org, P Praneesh , Sriram R , Jouni Malinen Subject: [PATCH v2 09/12] ath11k: remove mod operator in dst ring processing Date: Wed, 25 Aug 2021 15:07:54 +0530 Message-Id: <1629884277-18759-10-git-send-email-ppranees@codeaurora.org> X-Mailer: git-send-email 2.7.4 In-Reply-To: <1629884277-18759-1-git-send-email-ppranees@codeaurora.org> References: <1629884277-18759-1-git-send-email-ppranees@codeaurora.org> Precedence: bulk List-ID: X-Mailing-List: linux-wireless@vger.kernel.org Replace use of mod operator with a manual wrap around to avoid additional cost of using mod operation. Tested-on: IPQ8074 hw2.0 AHB WLAN.HK.2.4.0.1-01734-QCAHKSWPL_SILICONZ-1 v2 Co-developed-by: Sriram R Signed-off-by: Sriram R Signed-off-by: Jouni Malinen Signed-off-by: P Praneesh --- drivers/net/wireless/ath/ath11k/hal.c | 7 +++++-- 1 file changed, 5 insertions(+), 2 deletions(-) diff --git a/drivers/net/wireless/ath/ath11k/hal.c b/drivers/net/wireless/ath/ath11k/hal.c index f04edaf..7cf9e23 100644 --- a/drivers/net/wireless/ath/ath11k/hal.c +++ b/drivers/net/wireless/ath/ath11k/hal.c @@ -654,8 +654,11 @@ u32 *ath11k_hal_srng_dst_get_next_entry(struct ath11k_base *ab, desc = srng->ring_base_vaddr + srng->u.dst_ring.tp; - srng->u.dst_ring.tp = (srng->u.dst_ring.tp + srng->entry_size) % - srng->ring_size; + srng->u.dst_ring.tp += srng->entry_size; + + /* wrap around to start of ring*/ + if (srng->u.dst_ring.tp == srng->ring_size) + srng->u.dst_ring.tp = 0; /* Try to prefetch the next descriptor in the ring */ if (srng->flags & HAL_SRNG_FLAGS_CACHED)