From patchwork Tue Sep 27 13:01:40 2016 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Mohammed Shafi Shajakhan X-Patchwork-Id: 9351827 X-Patchwork-Delegate: kvalo@adurom.com Return-Path: Received: from mail.wl.linuxfoundation.org (pdx-wl-mail.web.codeaurora.org [172.30.200.125]) by pdx-korg-patchwork.web.codeaurora.org (Postfix) with ESMTP id 011D06077A for ; Tue, 27 Sep 2016 13:01:45 +0000 (UTC) Received: from mail.wl.linuxfoundation.org (localhost [127.0.0.1]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id DEECA291E4 for ; Tue, 27 Sep 2016 13:01:45 +0000 (UTC) Received: by mail.wl.linuxfoundation.org (Postfix, from userid 486) id D371B291E9; Tue, 27 Sep 2016 13:01:45 +0000 (UTC) X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on pdx-wl-mail.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-6.8 required=2.0 tests=BAYES_00,DKIM_SIGNED, RCVD_IN_DNSWL_HI,T_DKIM_INVALID autolearn=ham version=3.3.1 Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id C6FB8291E4 for ; Tue, 27 Sep 2016 13:01:41 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1752635AbcI0NBl (ORCPT ); Tue, 27 Sep 2016 09:01:41 -0400 Received: from wolverine02.qualcomm.com ([199.106.114.251]:39990 "EHLO wolverine02.qualcomm.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1750961AbcI0NBj (ORCPT ); Tue, 27 Sep 2016 09:01:39 -0400 DKIM-Signature: v=1; a=rsa-sha256; c=simple/simple; d=qti.qualcomm.com; i=@qti.qualcomm.com; q=dns/txt; s=qcdkim; t=1474981299; x=1506517299; h=from:to:cc:subject:date:message-id:mime-version; bh=ePB+ptG2076K2LHzRaCpU2MGfI+F9G2oM1CWFmdiGbA=; b=SUjCkzbBtSHNg02lxN7AlJibLloNzpcIpna9IRwDknqVO6ANrNWOyWLI 5JJIUS1IXsiQlEMdS7eMBtgmwRwFcm9VY3FT97xv4pzwUDMGd9gWvasGP W9U9Y+Ql3Gyptmwy2jGhucOYzxXfUidv67gQ233QUuzUH5jc1YZZKl9wo E=; X-IronPort-AV: E=Sophos;i="5.30,405,1470726000"; d="scan'208";a="322667487" Received: from unknown (HELO Ironmsg04-L.qualcomm.com) ([10.53.140.111]) by wolverine02.qualcomm.com with ESMTP; 27 Sep 2016 06:01:37 -0700 From: Mohammed Shafi Shajakhan X-IronPort-AV: E=McAfee;i="5700,7163,8300"; a="1207597036" Received: from nasanexm01f.na.qualcomm.com ([10.85.0.32]) by Ironmsg04-L.qualcomm.com with ESMTP/TLS/RC4-SHA; 27 Sep 2016 06:01:37 -0700 Received: from aphydexm01b.ap.qualcomm.com (10.252.127.11) by NASANEXM01F.na.qualcomm.com (10.85.0.32) with Microsoft SMTP Server (TLS) id 15.0.1178.4; Tue, 27 Sep 2016 06:01:36 -0700 Received: from qcmail1.qualcomm.com (10.80.80.8) by aphydexm01b.ap.qualcomm.com (10.252.127.11) with Microsoft SMTP Server (TLS) id 15.0.1178.4; Tue, 27 Sep 2016 18:31:28 +0530 Received: by qcmail1.qualcomm.com (sSMTP sendmail emulation); Tue, 27 Sep 2016 18:31:41 +0530 To: CC: , , "Mohammed Shafi Shajakhan" Subject: [PATCH v4] ath10k: Cleanup calling ath10k_htt_rx_h_unchain Date: Tue, 27 Sep 2016 18:31:40 +0530 Message-ID: <1474981300-15945-1-git-send-email-mohammed@qca.qualcomm.com> X-Mailer: git-send-email 1.9.1 MIME-Version: 1.0 X-Originating-IP: [10.80.80.8] X-ClientProxiedBy: NASANEXM01F.na.qualcomm.com (10.85.0.32) To aphydexm01b.ap.qualcomm.com (10.252.127.11) Sender: linux-wireless-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-wireless@vger.kernel.org X-Virus-Scanned: ClamAV using ClamSMTP From: Mohammed Shafi Shajakhan 'ath10k_htt_rx_h_unchain' is need to be called only if the return value from 'ath10k_htt_rx_amsdu_pop' is 1('chained msdu's'), this change makes it more explicit and avoids doing a skb_peek, fetching rx descriptor pointer, checking rx msdu decap format for the case of ret = 0 (unchained msdus). Found this change during code walk through, not sure if this addresses any issue. Signed-off-by: Mohammed Shafi Shajakhan --- drivers/net/wireless/ath/ath10k/htt_rx.c | 12 ++++++------ 1 file changed, 6 insertions(+), 6 deletions(-) diff --git a/drivers/net/wireless/ath/ath10k/htt_rx.c b/drivers/net/wireless/ath/ath10k/htt_rx.c index 7ae9349..e51dace 100644 --- a/drivers/net/wireless/ath/ath10k/htt_rx.c +++ b/drivers/net/wireless/ath/ath10k/htt_rx.c @@ -1459,8 +1459,7 @@ static int ath10k_unchain_msdu(struct sk_buff_head *amsdu) } static void ath10k_htt_rx_h_unchain(struct ath10k *ar, - struct sk_buff_head *amsdu, - bool chained) + struct sk_buff_head *amsdu) { struct sk_buff *first; struct htt_rx_desc *rxd; @@ -1471,9 +1470,6 @@ static void ath10k_htt_rx_h_unchain(struct ath10k *ar, decap = MS(__le32_to_cpu(rxd->msdu_start.common.info1), RX_MSDU_START_INFO1_DECAP_FORMAT); - if (!chained) - return; - /* FIXME: Current unchaining logic can only handle simple case of raw * msdu chaining. If decapping is other than raw the chaining may be * more complex and this isn't handled by the current code. Don't even @@ -1550,7 +1546,11 @@ static int ath10k_htt_rx_handle_amsdu(struct ath10k_htt *htt) } ath10k_htt_rx_h_ppdu(ar, &amsdu, rx_status, 0xffff); - ath10k_htt_rx_h_unchain(ar, &amsdu, ret > 0); + + /* only for ret = 1 indicates chained msdus */ + if (ret > 0) + ath10k_htt_rx_h_unchain(ar, &amsdu); + ath10k_htt_rx_h_filter(ar, &amsdu, rx_status); ath10k_htt_rx_h_mpdu(ar, &amsdu, rx_status); ath10k_htt_rx_h_deliver(ar, &amsdu, rx_status);