From patchwork Fri Feb 22 14:21:02 2019 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Maya Erez X-Patchwork-Id: 10826107 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-2.web.codeaurora.org (Postfix) with ESMTP id 5378D15AC for ; Fri, 22 Feb 2019 14:21:31 +0000 (UTC) Received: from mail.wl.linuxfoundation.org (localhost [127.0.0.1]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id 42A8B327AB for ; Fri, 22 Feb 2019 14:21:31 +0000 (UTC) Received: by mail.wl.linuxfoundation.org (Postfix, from userid 486) id 4115F327E3; Fri, 22 Feb 2019 14:21:31 +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=-7.9 required=2.0 tests=BAYES_00,MAILING_LIST_MULTI, RCVD_IN_DNSWL_HI 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 AF6B5327AB for ; Fri, 22 Feb 2019 14:21:30 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1726826AbfBVOV3 (ORCPT ); Fri, 22 Feb 2019 09:21:29 -0500 Received: from alexa-out-ams-01.qualcomm.com ([185.23.61.162]:46067 "EHLO alexa-out-ams-01.qualcomm.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1726664AbfBVOV2 (ORCPT ); Fri, 22 Feb 2019 09:21:28 -0500 X-IronPort-AV: E=Sophos;i="5.58,400,1544482800"; d="scan'208";a="2017370" Received: from ironmsg02-ams.qualcomm.com ([10.251.56.3]) by alexa-out-ams-01.qualcomm.com with ESMTP; 22 Feb 2019 15:21:25 +0100 X-IronPort-AV: E=McAfee;i="5900,7806,9174"; a="7285577" Received: from lx-merez1.mea.qualcomm.com ([10.18.173.103]) by ironmsg02-ams.qualcomm.com with ESMTP; 22 Feb 2019 15:21:24 +0100 From: Maya Erez To: Kalle Valo Cc: Ahmad Masri , linux-wireless@vger.kernel.org, wil6210@qti.qualcomm.com, Maya Erez Subject: [PATCH 04/21] wil6210: accessing 802.3 addresses via utility functions Date: Fri, 22 Feb 2019 16:21:02 +0200 Message-Id: <1550845279-16103-5-git-send-email-merez@codeaurora.org> X-Mailer: git-send-email 1.9.1 In-Reply-To: <1550845279-16103-1-git-send-email-merez@codeaurora.org> References: <1550845279-16103-1-git-send-email-merez@codeaurora.org> 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: Ahmad Masri Rearrange the code by having functions to access 802.3 header members, source and destination addresses. Signed-off-by: Ahmad Masri Signed-off-by: Maya Erez --- drivers/net/wireless/ath/wil6210/txrx.c | 36 ++++++++++++++++----------------- drivers/net/wireless/ath/wil6210/txrx.h | 18 +++++++++++++++-- 2 files changed, 33 insertions(+), 21 deletions(-) diff --git a/drivers/net/wireless/ath/wil6210/txrx.c b/drivers/net/wireless/ath/wil6210/txrx.c index 5aa1427..4ccfd14 100644 --- a/drivers/net/wireless/ath/wil6210/txrx.c +++ b/drivers/net/wireless/ath/wil6210/txrx.c @@ -383,7 +383,6 @@ static int wil_rx_get_cid_by_skb(struct wil6210_priv *wil, struct sk_buff *skb) */ int cid = wil_rxdesc_cid(d); unsigned int snaplen = wil_rx_snaplen(); - struct ethhdr *eth; struct ieee80211_hdr_3addr *hdr; int i; unsigned char *ta; @@ -401,8 +400,7 @@ static int wil_rx_get_cid_by_skb(struct wil6210_priv *wil, struct sk_buff *skb) skb->len); return -ENOENT; } - eth = (void *)skb->data; - ta = eth->h_source; + ta = wil_skb_get_sa(skb); } else { if (unlikely(skb->len < sizeof(struct ieee80211_hdr_3addr))) { wil_err_ratelimited(wil, "Short frame, len = %d\n", @@ -739,11 +737,11 @@ void wil_netif_rx_any(struct sk_buff *skb, struct net_device *ndev) unsigned int len = skb->len; int cid; int security; - struct ethhdr *eth = (void *)skb->data; + u8 *sa, *da = wil_skb_get_da(skb); /* here looking for DA, not A1, thus Rxdesc's 'mcast' indication * is not suitable, need to look at data */ - int mcast = is_multicast_ether_addr(eth->h_dest); + int mcast = is_multicast_ether_addr(da); struct wil_net_stats *stats; struct sk_buff *xmit_skb = NULL; static const char * const gro_res_str[] = { @@ -774,7 +772,8 @@ void wil_netif_rx_any(struct sk_buff *skb, struct net_device *ndev) } if (wdev->iftype == NL80211_IFTYPE_STATION) { - if (mcast && ether_addr_equal(eth->h_source, ndev->dev_addr)) { + sa = wil_skb_get_sa(skb); + if (mcast && ether_addr_equal(sa, ndev->dev_addr)) { /* mcast packet looped back to us */ rc = GRO_DROP; dev_kfree_skb(skb); @@ -787,8 +786,7 @@ void wil_netif_rx_any(struct sk_buff *skb, struct net_device *ndev) */ xmit_skb = skb_copy(skb, GFP_ATOMIC); } else { - int xmit_cid = wil_find_cid(wil, vif->mid, - eth->h_dest); + int xmit_cid = wil_find_cid(wil, vif->mid, da); if (xmit_cid >= 0) { /* The destination station is associated to @@ -1239,11 +1237,12 @@ static struct wil_ring *wil_find_tx_ucast(struct wil6210_priv *wil, struct wil6210_vif *vif, struct sk_buff *skb) { - int i; - struct ethhdr *eth = (void *)skb->data; - int cid = wil_find_cid(wil, vif->mid, eth->h_dest); + int i, cid; + const u8 *da = wil_skb_get_da(skb); int min_ring_id = wil_get_min_tx_ring_id(wil); + cid = wil_find_cid(wil, vif->mid, da); + if (cid < 0 || cid >= max_assoc_sta) return NULL; @@ -1257,7 +1256,7 @@ static struct wil_ring *wil_find_tx_ucast(struct wil6210_priv *wil, struct wil_ring_tx_data *txdata = &wil->ring_tx_data[i]; wil_dbg_txrx(wil, "find_tx_ucast: (%pM) -> [%d]\n", - eth->h_dest, i); + da, i); if (v->va && txdata->enabled) { return v; } else { @@ -1348,10 +1347,10 @@ static struct wil_ring *wil_find_tx_bcast_1(struct wil6210_priv *wil, static void wil_set_da_for_vring(struct wil6210_priv *wil, struct sk_buff *skb, int vring_index) { - struct ethhdr *eth = (void *)skb->data; + u8 *da = wil_skb_get_da(skb); int cid = wil->ring2cid_tid[vring_index][0]; - ether_addr_copy(eth->h_dest, wil->sta[cid].addr); + ether_addr_copy(da, wil->sta[cid].addr); } static struct wil_ring *wil_find_tx_bcast_2(struct wil6210_priv *wil, @@ -1362,8 +1361,7 @@ static struct wil_ring *wil_find_tx_bcast_2(struct wil6210_priv *wil, struct sk_buff *skb2; int i; u8 cid; - struct ethhdr *eth = (void *)skb->data; - char *src = eth->h_source; + const u8 *src = wil_skb_get_sa(skb); struct wil_ring_tx_data *txdata, *txdata2; int min_ring_id = wil_get_min_tx_ring_id(wil); @@ -2121,8 +2119,8 @@ netdev_tx_t wil_start_xmit(struct sk_buff *skb, struct net_device *ndev) { struct wil6210_vif *vif = ndev_to_vif(ndev); struct wil6210_priv *wil = vif_to_wil(vif); - struct ethhdr *eth = (void *)skb->data; - bool bcast = is_multicast_ether_addr(eth->h_dest); + const u8 *da = wil_skb_get_da(skb); + bool bcast = is_multicast_ether_addr(da); struct wil_ring *ring; static bool pr_once_fw; int rc; @@ -2169,7 +2167,7 @@ netdev_tx_t wil_start_xmit(struct sk_buff *skb, struct net_device *ndev) ring = wil_find_tx_ucast(wil, vif, skb); } if (unlikely(!ring)) { - wil_dbg_txrx(wil, "No Tx RING found for %pM\n", eth->h_dest); + wil_dbg_txrx(wil, "No Tx RING found for %pM\n", da); goto drop; } /* set up vring entry */ diff --git a/drivers/net/wireless/ath/wil6210/txrx.h b/drivers/net/wireless/ath/wil6210/txrx.h index 1aec04d..c0da134 100644 --- a/drivers/net/wireless/ath/wil6210/txrx.h +++ b/drivers/net/wireless/ath/wil6210/txrx.h @@ -567,11 +567,25 @@ static inline int wil_ring_is_full(struct wil_ring *ring) return wil_ring_next_tail(ring) == ring->swhead; } -static inline bool wil_need_txstat(struct sk_buff *skb) +static inline u8 *wil_skb_get_da(struct sk_buff *skb) +{ + struct ethhdr *eth = (void *)skb->data; + + return eth->h_dest; +} + +static inline u8 *wil_skb_get_sa(struct sk_buff *skb) { struct ethhdr *eth = (void *)skb->data; - return is_unicast_ether_addr(eth->h_dest) && skb->sk && + return eth->h_source; +} + +static inline bool wil_need_txstat(struct sk_buff *skb) +{ + const u8 *da = wil_skb_get_da(skb); + + return is_unicast_ether_addr(da) && skb->sk && (skb_shinfo(skb)->tx_flags & SKBTX_WIFI_STATUS); }