From patchwork Thu May 21 09:54:29 2020 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Malcolm Priestley X-Patchwork-Id: 11562591 X-Patchwork-Delegate: johannes@sipsolutions.net Return-Path: Received: from mail.kernel.org (pdx-korg-mail-1.web.codeaurora.org [172.30.200.123]) by pdx-korg-patchwork-2.web.codeaurora.org (Postfix) with ESMTP id 12F30739 for ; Thu, 21 May 2020 09:54:34 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id E9F7F207D3 for ; Thu, 21 May 2020 09:54:33 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (2048-bit key) header.d=gmail.com header.i=@gmail.com header.b="Kn+GS2Gj" Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1726979AbgEUJyd (ORCPT ); Thu, 21 May 2020 05:54:33 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:40300 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1726892AbgEUJyd (ORCPT ); Thu, 21 May 2020 05:54:33 -0400 Received: from mail-wr1-x444.google.com (mail-wr1-x444.google.com [IPv6:2a00:1450:4864:20::444]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id AA630C061A0E for ; Thu, 21 May 2020 02:54:32 -0700 (PDT) Received: by mail-wr1-x444.google.com with SMTP id k13so6073008wrx.3 for ; Thu, 21 May 2020 02:54:32 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20161025; h=from:subject:to:cc:message-id:date:user-agent:mime-version :content-language:content-transfer-encoding; bh=5QeQ4he9h0xADmEWbOoDulC21CWqkbyqDnHh7T76EKo=; b=Kn+GS2GjsgZeE2Xk4ryfb00h4EBKZ6zR3fWSmjAj2dKsffKYVYYVodj8scDKH6R93A xGlOgDWRA4J1wE67EOu5Z+GJWQ3X+LHV1NNnYzxPJXzw5ilY22mQSmtIqRPeKrAggOQp rtwFtVg04mBGs4byajNCIvU9jMkSC/xYzix9fJLP2V8mZN/xjsyUaxD8epfAmtMHCxW7 6LynC3jF6qdxnQ/ORlNNuTAr/lcvC3rLbwCJ33oLaLF/SB41KLmjuFTTZ/ySjEZ9zzmr 8PRb3vtHRzfFqzEnV7Ly2Mx5bQ6wkrbRfoL6Ccffz0tpqrokUhXRawyLFuSy53fzIFrj 440w== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:from:subject:to:cc:message-id:date:user-agent :mime-version:content-language:content-transfer-encoding; bh=5QeQ4he9h0xADmEWbOoDulC21CWqkbyqDnHh7T76EKo=; b=m/agEI1vEQUtFmShtnupTKwL25PEm989LfrycnQwov/Llns8w5ybUytTWmZsWFPviz 8wiBkBbJmlAji3wQ0UTCss1avywUpeJCqo4BcW3qzsVa6g3LXjW+JuqlQT1QYvZGBhbx xiTLSn0e9TkYCo+t+QXEZ+6vfZX+nBYyHeFSuXy61gZDKdyzU5cLmLZcPDU7liQlG03v l9O8ZPgjD5T7IrPZAXPZuvhQ4Zqjr+h6CKksex7p3Fgx8oBIDmx2bQ+uzZ7x0V4bsxDv nAakJCCHPTWbM9M3jfN6d2GSoDZCqOzlxUtFl+SAAIiobK9dJw4eowENZFDzetx+AJ6D 4a+g== X-Gm-Message-State: AOAM5339v5Im2sqlAVYAJ1aLGxSGhd+7VBlQIJKJ6h+aulZhJkpuAoNw fKtnAsNXbogCLSt3SkqTILdJGWg3SFAvAA== X-Google-Smtp-Source: ABdhPJz7KRZBSjlGdNM0DfJ2R+MxsYaiwL3K8y61pbBHazmB9QdsMbNr2NehwxvRG4r+rKu0urDL/Q== X-Received: by 2002:adf:e441:: with SMTP id t1mr7664441wrm.347.1590054870889; Thu, 21 May 2020 02:54:30 -0700 (PDT) Received: from [192.168.43.18] ([85.255.237.70]) by smtp.gmail.com with ESMTPSA id b12sm6295375wmj.0.2020.05.21.02.54.29 (version=TLS1_3 cipher=TLS_AES_128_GCM_SHA256 bits=128/128); Thu, 21 May 2020 02:54:30 -0700 (PDT) From: Malcolm Priestley Subject: [PATCH 09/10] staging: vt6656: Move calling point of vnt_fill_txkey. To: Greg Kroah-Hartman Cc: "devel@driverdev.osuosl.org" , linux-wireless@vger.kernel.org Message-ID: Date: Thu, 21 May 2020 10:54:29 +0100 User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:68.0) Gecko/20100101 Thunderbird/68.8.0 MIME-Version: 1.0 Content-Language: en-US Sender: linux-wireless-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-wireless@vger.kernel.org Change vnt_fill_txkey to return true if mic_hdr is needed and change calling point at where it is to be placed. tx_buffer is already in tx_context. Signed-off-by: Malcolm Priestley --- drivers/staging/vt6656/rxtx.c | 191 +++++++++++++++++----------------- 1 file changed, 95 insertions(+), 96 deletions(-) diff --git a/drivers/staging/vt6656/rxtx.c b/drivers/staging/vt6656/rxtx.c index a0672ca51138..bbe449af8acf 100644 --- a/drivers/staging/vt6656/rxtx.c +++ b/drivers/staging/vt6656/rxtx.c @@ -295,94 +295,8 @@ static void vnt_fill_cts_head(struct vnt_usb_send_context *tx_context, vnt_rxtx_datahead_g(tx_context, &buf->data_head); } -static void vnt_rxtx_rts(struct vnt_usb_send_context *tx_context, - union vnt_tx_head *tx_head) -{ - struct ieee80211_tx_info *info = IEEE80211_SKB_CB(tx_context->skb); - struct vnt_rrv_time_rts *buf = &tx_head->tx_rts.rts; - union vnt_tx_data_head *head = &tx_head->tx_rts.tx.head; - - buf->rts_rrv_time_aa = vnt_get_rts_duration(tx_context); - buf->rts_rrv_time_ba = buf->rts_rrv_time_aa; - buf->rts_rrv_time_bb = buf->rts_rrv_time_aa; - - buf->rrv_time_a = vnt_rxtx_rsvtime_le16(tx_context); - buf->rrv_time_b = buf->rrv_time_a; - - if (info->control.hw_key) { - if (info->control.hw_key->cipher == WLAN_CIPHER_SUITE_CCMP) - head = &tx_head->tx_rts.tx.mic.head; - } - - vnt_rxtx_rts_g_head(tx_context, &head->rts_g); -} - -static void vnt_rxtx_cts(struct vnt_usb_send_context *tx_context, - union vnt_tx_head *tx_head) -{ - struct ieee80211_tx_info *info = IEEE80211_SKB_CB(tx_context->skb); - struct vnt_rrv_time_cts *buf = &tx_head->tx_cts.cts; - union vnt_tx_data_head *head = &tx_head->tx_cts.tx.head; - - buf->rrv_time_a = vnt_rxtx_rsvtime_le16(tx_context); - buf->rrv_time_b = buf->rrv_time_a; - - buf->cts_rrv_time_ba = vnt_get_cts_duration(tx_context); - - if (info->control.hw_key) { - if (info->control.hw_key->cipher == WLAN_CIPHER_SUITE_CCMP) - head = &tx_head->tx_cts.tx.mic.head; - } - - vnt_fill_cts_head(tx_context, head); -} - -static void vnt_rxtx_ab(struct vnt_usb_send_context *tx_context, - union vnt_tx_head *tx_head) -{ - struct ieee80211_tx_info *info = IEEE80211_SKB_CB(tx_context->skb); - struct vnt_rrv_time_ab *buf = &tx_head->tx_ab.ab; - union vnt_tx_data_head *head = &tx_head->tx_ab.tx.head; - - buf->rrv_time = vnt_rxtx_rsvtime_le16(tx_context); - - if (info->control.hw_key) { - if (info->control.hw_key->cipher == WLAN_CIPHER_SUITE_CCMP) - head = &tx_head->tx_ab.tx.mic.head; - } - - if (info->control.use_rts) { - buf->rts_rrv_time = vnt_get_rts_duration(tx_context); - - vnt_rxtx_rts_ab_head(tx_context, &head->rts_ab); - - return; - } - - vnt_rxtx_datahead_ab(tx_context, &head->data_head_ab); -} - -static void vnt_generate_tx_parameter(struct vnt_usb_send_context *tx_context, - struct vnt_tx_buffer *tx_buffer) -{ - struct ieee80211_tx_info *info = IEEE80211_SKB_CB(tx_context->skb); - - if (info->control.use_cts_prot) { - if (info->control.use_rts) { - vnt_rxtx_rts(tx_context, &tx_buffer->tx_head); - - return; - } - - vnt_rxtx_cts(tx_context, &tx_buffer->tx_head); - - return; - } - - vnt_rxtx_ab(tx_context, &tx_buffer->tx_head); -} - -static void vnt_fill_txkey(struct vnt_tx_buffer *tx_buffer, struct sk_buff *skb) +/* returns true if mic_hdr is needed */ +static bool vnt_fill_txkey(struct vnt_tx_buffer *tx_buffer, struct sk_buff *skb) { struct vnt_tx_fifo_head *fifo = &tx_buffer->fifo_head; struct ieee80211_tx_info *info = IEEE80211_SKB_CB(skb); @@ -455,10 +369,101 @@ static void vnt_fill_txkey(struct vnt_tx_buffer *tx_buffer, struct sk_buff *skb) memcpy(fifo->tx_key, tx_key->key, WLAN_KEY_LEN_CCMP); - break; + return true; default: break; } + + return false; +} + +static void vnt_rxtx_rts(struct vnt_usb_send_context *tx_context) +{ + struct ieee80211_tx_info *info = IEEE80211_SKB_CB(tx_context->skb); + struct vnt_tx_buffer *tx_buffer = tx_context->tx_buffer; + union vnt_tx_head *tx_head = &tx_buffer->tx_head; + struct vnt_rrv_time_rts *buf = &tx_head->tx_rts.rts; + union vnt_tx_data_head *head = &tx_head->tx_rts.tx.head; + + buf->rts_rrv_time_aa = vnt_get_rts_duration(tx_context); + buf->rts_rrv_time_ba = buf->rts_rrv_time_aa; + buf->rts_rrv_time_bb = buf->rts_rrv_time_aa; + + buf->rrv_time_a = vnt_rxtx_rsvtime_le16(tx_context); + buf->rrv_time_b = buf->rrv_time_a; + + if (info->control.hw_key) { + if (vnt_fill_txkey(tx_buffer, tx_context->skb)) + head = &tx_head->tx_rts.tx.mic.head; + } + + vnt_rxtx_rts_g_head(tx_context, &head->rts_g); +} + +static void vnt_rxtx_cts(struct vnt_usb_send_context *tx_context) +{ + struct ieee80211_tx_info *info = IEEE80211_SKB_CB(tx_context->skb); + struct vnt_tx_buffer *tx_buffer = tx_context->tx_buffer; + union vnt_tx_head *tx_head = &tx_buffer->tx_head; + struct vnt_rrv_time_cts *buf = &tx_head->tx_cts.cts; + union vnt_tx_data_head *head = &tx_head->tx_cts.tx.head; + + buf->rrv_time_a = vnt_rxtx_rsvtime_le16(tx_context); + buf->rrv_time_b = buf->rrv_time_a; + + buf->cts_rrv_time_ba = vnt_get_cts_duration(tx_context); + + if (info->control.hw_key) { + if (vnt_fill_txkey(tx_buffer, tx_context->skb)) + head = &tx_head->tx_cts.tx.mic.head; + } + + vnt_fill_cts_head(tx_context, head); +} + +static void vnt_rxtx_ab(struct vnt_usb_send_context *tx_context) +{ + struct ieee80211_tx_info *info = IEEE80211_SKB_CB(tx_context->skb); + struct vnt_tx_buffer *tx_buffer = tx_context->tx_buffer; + union vnt_tx_head *tx_head = &tx_buffer->tx_head; + struct vnt_rrv_time_ab *buf = &tx_head->tx_ab.ab; + union vnt_tx_data_head *head = &tx_head->tx_ab.tx.head; + + buf->rrv_time = vnt_rxtx_rsvtime_le16(tx_context); + + if (info->control.hw_key) { + if (vnt_fill_txkey(tx_buffer, tx_context->skb)) + head = &tx_head->tx_ab.tx.mic.head; + } + + if (info->control.use_rts) { + buf->rts_rrv_time = vnt_get_rts_duration(tx_context); + + vnt_rxtx_rts_ab_head(tx_context, &head->rts_ab); + + return; + } + + vnt_rxtx_datahead_ab(tx_context, &head->data_head_ab); +} + +static void vnt_generate_tx_parameter(struct vnt_usb_send_context *tx_context) +{ + struct ieee80211_tx_info *info = IEEE80211_SKB_CB(tx_context->skb); + + if (info->control.use_cts_prot) { + if (info->control.use_rts) { + vnt_rxtx_rts(tx_context); + + return; + } + + vnt_rxtx_cts(tx_context); + + return; + } + + vnt_rxtx_ab(tx_context); } static u16 vnt_get_hdr_size(struct ieee80211_tx_info *info) @@ -621,16 +626,10 @@ int vnt_tx_packet(struct vnt_private *priv, struct sk_buff *skb) tx_buffer_head->current_rate = cpu_to_le16(rate->hw_value); - vnt_generate_tx_parameter(tx_context, tx_buffer); + vnt_generate_tx_parameter(tx_context); tx_buffer_head->frag_ctl |= cpu_to_le16(FRAGCTL_NONFRAG); - if (info->control.hw_key) { - tx_key = info->control.hw_key; - if (tx_key->keylen > 0) - vnt_fill_txkey(tx_buffer, skb); - } - priv->seq_counter = (le16_to_cpu(hdr->seq_ctrl) & IEEE80211_SCTL_SEQ) >> 4;