Return-path: Received: from mx0a-0016f401.pphosted.com ([67.231.148.174]:45267 "EHLO mx0a-0016f401.pphosted.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1753156Ab3LCHSp (ORCPT ); Tue, 3 Dec 2013 02:18:45 -0500 From: Bing Zhao To: CC: "John W. Linville" , Ujjal Roy , Amitkumar Karwar , Avinash Patil , Nishant Sarmukadam , Frank Huang , Bing Zhao Subject: [PATCH 06/12] mwifiex: fix rx_pending count imbalance Date: Mon, 2 Dec 2013 23:17:53 -0800 Message-ID: <1386055079-6623-7-git-send-email-bzhao@marvell.com> (sfid-20131203_082459_625819_13406690) In-Reply-To: <1386055079-6623-1-git-send-email-bzhao@marvell.com> References: <1386055079-6623-1-git-send-email-bzhao@marvell.com> MIME-Version: 1.0 Content-Type: text/plain Sender: linux-wireless-owner@vger.kernel.org List-ID: From: Ujjal Roy RX packets are handled in different paths. Not all paths have decrement of rx_pending counter. This patch fixes the counter imbalance. Signed-off-by: Ujjal Roy Signed-off-by: Bing Zhao --- drivers/net/wireless/mwifiex/init.c | 3 ++- drivers/net/wireless/mwifiex/main.h | 2 +- drivers/net/wireless/mwifiex/sta_rx.c | 15 +++------------ drivers/net/wireless/mwifiex/txrx.c | 11 +++++++++-- drivers/net/wireless/mwifiex/uap_txrx.c | 15 +++------------ drivers/net/wireless/mwifiex/usb.c | 4 +--- 6 files changed, 19 insertions(+), 31 deletions(-) diff --git a/drivers/net/wireless/mwifiex/init.c b/drivers/net/wireless/mwifiex/init.c index 6499117..1d0a817 100644 --- a/drivers/net/wireless/mwifiex/init.c +++ b/drivers/net/wireless/mwifiex/init.c @@ -643,7 +643,8 @@ mwifiex_shutdown_drv(struct mwifiex_adapter *adapter) if (priv) priv->stats.rx_dropped++; - adapter->if_ops.data_complete(adapter, skb); + dev_kfree_skb_any(skb); + adapter->if_ops.data_complete(adapter); } } diff --git a/drivers/net/wireless/mwifiex/main.h b/drivers/net/wireless/mwifiex/main.h index 1d72f13..dc34457 100644 --- a/drivers/net/wireless/mwifiex/main.h +++ b/drivers/net/wireless/mwifiex/main.h @@ -615,7 +615,7 @@ struct mwifiex_if_ops { void (*cleanup_mpa_buf) (struct mwifiex_adapter *); int (*cmdrsp_complete) (struct mwifiex_adapter *, struct sk_buff *); int (*event_complete) (struct mwifiex_adapter *, struct sk_buff *); - int (*data_complete) (struct mwifiex_adapter *, struct sk_buff *); + int (*data_complete) (struct mwifiex_adapter *); int (*init_fw_port) (struct mwifiex_adapter *); int (*dnld_fw) (struct mwifiex_adapter *, struct mwifiex_fw_image *); void (*card_reset) (struct mwifiex_adapter *); diff --git a/drivers/net/wireless/mwifiex/sta_rx.c b/drivers/net/wireless/mwifiex/sta_rx.c index d74192d..0bb510d 100644 --- a/drivers/net/wireless/mwifiex/sta_rx.c +++ b/drivers/net/wireless/mwifiex/sta_rx.c @@ -188,12 +188,7 @@ int mwifiex_process_sta_rx_packet(struct mwifiex_private *priv, "wrong rx packet: len=%d, rx_pkt_offset=%d, rx_pkt_length=%d\n", skb->len, rx_pkt_offset, rx_pkt_length); priv->stats.rx_dropped++; - - if (adapter->if_ops.data_complete) - adapter->if_ops.data_complete(adapter, skb); - else - dev_kfree_skb_any(skb); - + dev_kfree_skb_any(skb); return ret; } @@ -247,12 +242,8 @@ int mwifiex_process_sta_rx_packet(struct mwifiex_private *priv, ret = mwifiex_11n_rx_reorder_pkt(priv, seq_num, local_rx_pd->priority, ta, (u8) rx_pkt_type, skb); - if (ret || (rx_pkt_type == PKT_TYPE_BAR)) { - if (adapter->if_ops.data_complete) - adapter->if_ops.data_complete(adapter, skb); - else - dev_kfree_skb_any(skb); - } + if (ret || (rx_pkt_type == PKT_TYPE_BAR)) + dev_kfree_skb_any(skb); if (ret) priv->stats.rx_dropped++; diff --git a/drivers/net/wireless/mwifiex/txrx.c b/drivers/net/wireless/mwifiex/txrx.c index 8f923d0..8dd145c 100644 --- a/drivers/net/wireless/mwifiex/txrx.c +++ b/drivers/net/wireless/mwifiex/txrx.c @@ -40,6 +40,7 @@ int mwifiex_handle_rx_packet(struct mwifiex_adapter *adapter, mwifiex_get_priv(adapter, MWIFIEX_BSS_ROLE_ANY); struct rxpd *local_rx_pd; struct mwifiex_rxinfo *rx_info = MWIFIEX_SKB_RXCB(skb); + int ret; local_rx_pd = (struct rxpd *) (skb->data); /* Get the BSS number from rxpd, get corresponding priv */ @@ -58,9 +59,15 @@ int mwifiex_handle_rx_packet(struct mwifiex_adapter *adapter, rx_info->bss_type = priv->bss_type; if (priv->bss_role == MWIFIEX_BSS_ROLE_UAP) - return mwifiex_process_uap_rx_packet(priv, skb); + ret = mwifiex_process_uap_rx_packet(priv, skb); + else + ret = mwifiex_process_sta_rx_packet(priv, skb); + + /* Decrement RX pending counter for each packet */ + if (adapter->if_ops.data_complete) + adapter->if_ops.data_complete(adapter); - return mwifiex_process_sta_rx_packet(priv, skb); + return ret; } EXPORT_SYMBOL_GPL(mwifiex_handle_rx_packet); diff --git a/drivers/net/wireless/mwifiex/uap_txrx.c b/drivers/net/wireless/mwifiex/uap_txrx.c index a0bd954..6c0a31a 100644 --- a/drivers/net/wireless/mwifiex/uap_txrx.c +++ b/drivers/net/wireless/mwifiex/uap_txrx.c @@ -267,12 +267,7 @@ int mwifiex_process_uap_rx_packet(struct mwifiex_private *priv, skb->len, le16_to_cpu(uap_rx_pd->rx_pkt_offset), le16_to_cpu(uap_rx_pd->rx_pkt_length)); priv->stats.rx_dropped++; - - if (adapter->if_ops.data_complete) - adapter->if_ops.data_complete(adapter, skb); - else - dev_kfree_skb_any(skb); - + dev_kfree_skb_any(skb); return 0; } @@ -326,12 +321,8 @@ int mwifiex_process_uap_rx_packet(struct mwifiex_private *priv, uap_rx_pd->priority, ta, pkt_type, skb); - if (ret || (rx_pkt_type == PKT_TYPE_BAR)) { - if (adapter->if_ops.data_complete) - adapter->if_ops.data_complete(adapter, skb); - else - dev_kfree_skb_any(skb); - } + if (ret || (rx_pkt_type == PKT_TYPE_BAR)) + dev_kfree_skb_any(skb); if (ret) priv->stats.rx_dropped++; diff --git a/drivers/net/wireless/mwifiex/usb.c b/drivers/net/wireless/mwifiex/usb.c index edf5b7a..a9240a2 100644 --- a/drivers/net/wireless/mwifiex/usb.c +++ b/drivers/net/wireless/mwifiex/usb.c @@ -938,11 +938,9 @@ static int mwifiex_usb_cmd_event_complete(struct mwifiex_adapter *adapter, return 0; } -static int mwifiex_usb_data_complete(struct mwifiex_adapter *adapter, - struct sk_buff *skb) +static int mwifiex_usb_data_complete(struct mwifiex_adapter *adapter) { atomic_dec(&adapter->rx_pending); - dev_kfree_skb_any(skb); return 0; } -- 1.8.2.3