From ce9e2e1b8433c8795459a259ee87bc4e424e7c50 Mon Sep 17 00:00:00 2001 From: Lennert Buytenhek Date: Thu, 16 Jul 2009 14:00:45 +0200 Subject: [PATCH] mwl8k: various coding style cleanups Signed-off-by: Lennert Buytenhek Signed-off-by: John W. Linville --- drivers/net/wireless/mwl8k.c | 130 +++++++++++++++-------------------- 1 file changed, 57 insertions(+), 73 deletions(-) diff --git a/drivers/net/wireless/mwl8k.c b/drivers/net/wireless/mwl8k.c index 682b82071a0b..a2eeba17d37d 100644 --- a/drivers/net/wireless/mwl8k.c +++ b/drivers/net/wireless/mwl8k.c @@ -1,5 +1,6 @@ /* - * drivers/net/wireless/mwl8k.c driver for Marvell TOPDOG 802.11 Wireless cards + * drivers/net/wireless/mwl8k.c + * Driver for Marvell TOPDOG 802.11 Wireless cards * * Copyright (C) 2008 Marvell Semiconductor Inc. * @@ -40,12 +41,12 @@ MODULE_DEVICE_TABLE(pci, mwl8k_table); /* Register definitions */ #define MWL8K_HIU_GEN_PTR 0x00000c10 -#define MWL8K_MODE_STA 0x0000005a -#define MWL8K_MODE_AP 0x000000a5 +#define MWL8K_MODE_STA 0x0000005a +#define MWL8K_MODE_AP 0x000000a5 #define MWL8K_HIU_INT_CODE 0x00000c14 -#define MWL8K_FWSTA_READY 0xf0f1f2f4 -#define MWL8K_FWAP_READY 0xf1f2f4a5 -#define MWL8K_INT_CODE_CMD_FINISHED 0x00000005 +#define MWL8K_FWSTA_READY 0xf0f1f2f4 +#define MWL8K_FWAP_READY 0xf1f2f4a5 +#define MWL8K_INT_CODE_CMD_FINISHED 0x00000005 #define MWL8K_HIU_SCRATCH 0x00000c40 /* Host->device communications */ @@ -54,10 +55,10 @@ MODULE_DEVICE_TABLE(pci, mwl8k_table); #define MWL8K_HIU_H2A_INTERRUPT_MASK 0x00000c20 #define MWL8K_HIU_H2A_INTERRUPT_CLEAR_SEL 0x00000c24 #define MWL8K_HIU_H2A_INTERRUPT_STATUS_MASK 0x00000c28 -#define MWL8K_H2A_INT_DUMMY (1 << 20) -#define MWL8K_H2A_INT_RESET (1 << 15) -#define MWL8K_H2A_INT_DOORBELL (1 << 1) -#define MWL8K_H2A_INT_PPA_READY (1 << 0) +#define MWL8K_H2A_INT_DUMMY (1 << 20) +#define MWL8K_H2A_INT_RESET (1 << 15) +#define MWL8K_H2A_INT_DOORBELL (1 << 1) +#define MWL8K_H2A_INT_PPA_READY (1 << 0) /* Device->host communications */ #define MWL8K_HIU_A2H_INTERRUPT_EVENTS 0x00000c2c @@ -65,16 +66,16 @@ MODULE_DEVICE_TABLE(pci, mwl8k_table); #define MWL8K_HIU_A2H_INTERRUPT_MASK 0x00000c34 #define MWL8K_HIU_A2H_INTERRUPT_CLEAR_SEL 0x00000c38 #define MWL8K_HIU_A2H_INTERRUPT_STATUS_MASK 0x00000c3c -#define MWL8K_A2H_INT_DUMMY (1 << 20) -#define MWL8K_A2H_INT_CHNL_SWITCHED (1 << 11) -#define MWL8K_A2H_INT_QUEUE_EMPTY (1 << 10) -#define MWL8K_A2H_INT_RADAR_DETECT (1 << 7) -#define MWL8K_A2H_INT_RADIO_ON (1 << 6) -#define MWL8K_A2H_INT_RADIO_OFF (1 << 5) -#define MWL8K_A2H_INT_MAC_EVENT (1 << 3) -#define MWL8K_A2H_INT_OPC_DONE (1 << 2) -#define MWL8K_A2H_INT_RX_READY (1 << 1) -#define MWL8K_A2H_INT_TX_DONE (1 << 0) +#define MWL8K_A2H_INT_DUMMY (1 << 20) +#define MWL8K_A2H_INT_CHNL_SWITCHED (1 << 11) +#define MWL8K_A2H_INT_QUEUE_EMPTY (1 << 10) +#define MWL8K_A2H_INT_RADAR_DETECT (1 << 7) +#define MWL8K_A2H_INT_RADIO_ON (1 << 6) +#define MWL8K_A2H_INT_RADIO_OFF (1 << 5) +#define MWL8K_A2H_INT_MAC_EVENT (1 << 3) +#define MWL8K_A2H_INT_OPC_DONE (1 << 2) +#define MWL8K_A2H_INT_RX_READY (1 << 1) +#define MWL8K_A2H_INT_TX_DONE (1 << 0) #define MWL8K_A2H_EVENTS (MWL8K_A2H_INT_DUMMY | \ MWL8K_A2H_INT_CHNL_SWITCHED | \ @@ -331,7 +332,7 @@ static const char *mwl8k_cmd_name(u16 cmd, char *buf, int bufsize) snprintf(buf, bufsize, "%s", #x);\ return buf;\ } while (0) - switch (cmd & (~0x8000)) { + switch (cmd & ~0x8000) { MWL8K_CMDNAME(CODE_DNLD); MWL8K_CMDNAME(GET_HW_SPEC); MWL8K_CMDNAME(MAC_MULTICAST_ADR); @@ -1078,8 +1079,7 @@ static int mwl8k_txq_init(struct ieee80211_hw *hw, int index) int size; int i; - memset(&txq->tx_stats, 0, - sizeof(struct ieee80211_tx_queue_stats)); + memset(&txq->tx_stats, 0, sizeof(struct ieee80211_tx_queue_stats)); txq->tx_stats.limit = MWL8K_TX_DESCS; txq->tx_head = 0; txq->tx_tail = 0; @@ -1181,10 +1181,10 @@ static int mwl8k_scan_tx_ring(struct mwl8k_priv *priv, static int mwl8k_tx_wait_empty(struct ieee80211_hw *hw, u32 delay_ms) { - u32 count = 0; - unsigned long timeout = 0; struct mwl8k_priv *priv = hw->priv; DECLARE_COMPLETION_ONSTACK(cmd_wait); + u32 count; + unsigned long timeout; might_sleep(); @@ -1219,7 +1219,7 @@ static int mwl8k_tx_wait_empty(struct ieee80211_hw *hw, u32 delay_ms) __func__, __LINE__, delay_ms, count, newcount); mwl8k_scan_tx_ring(priv, txinfo, 4); - for (index = 0 ; index < 4; index++) + for (index = 0; index < 4; index++) printk(KERN_ERR "TXQ:%u L:%u H:%u T:%u FW:%u DRV:%u U:%u\n", index, @@ -1229,6 +1229,7 @@ static int mwl8k_tx_wait_empty(struct ieee80211_hw *hw, u32 delay_ms) txinfo[index].fw_owned, txinfo[index].drv_owned, txinfo[index].unused); + return -ETIMEDOUT; } @@ -1251,7 +1252,7 @@ static void mwl8k_txq_reclaim(struct ieee80211_hw *hw, int index, int force) int rc; struct mwl8k_tx_desc *tx_desc; unsigned long addr; - size_t size; + int size; struct sk_buff *skb; struct ieee80211_tx_info *info; u32 status; @@ -1275,7 +1276,7 @@ static void mwl8k_txq_reclaim(struct ieee80211_hw *hw, int index, int force) priv->pending_tx_pkts--; addr = le32_to_cpu(tx_desc->pkt_phys_addr); - size = (u32)(le16_to_cpu(tx_desc->pkt_len)); + size = le16_to_cpu(tx_desc->pkt_len); skb = txq->tx_skb[tx].skb; txq->tx_skb[tx].skb = NULL; @@ -1312,12 +1313,8 @@ static void mwl8k_txq_reclaim(struct ieee80211_hw *hw, int index, int force) info = IEEE80211_SKB_CB(skb); ieee80211_tx_info_clear_status(info); - - /* Convert firmware status stuff into tx_status */ - if (MWL8K_TXD_SUCCESS(status)) { - /* Transmit OK */ + if (MWL8K_TXD_SUCCESS(status)) info->flags |= IEEE80211_TX_STAT_ACK; - } ieee80211_tx_status_irqsafe(hw, skb); @@ -1522,7 +1519,6 @@ static int mwl8k_post_cmd(struct ieee80211_hw *hw, struct mwl8k_cmd_pkt *cmd) dma_addr_t dma_addr; unsigned int dma_size; int rc; - u16 __iomem *result; unsigned long timeout = 0; u8 buf[32]; @@ -1551,7 +1547,6 @@ static int mwl8k_post_cmd(struct ieee80211_hw *hw, struct mwl8k_cmd_pkt *cmd) pci_unmap_single(priv->pdev, dma_addr, dma_size, PCI_DMA_BIDIRECTIONAL); - result = &cmd->result; if (!timeout) { spin_lock_irq(&priv->fw_lock); priv->hostcmd_wait = NULL; @@ -1562,12 +1557,12 @@ static int mwl8k_post_cmd(struct ieee80211_hw *hw, struct mwl8k_cmd_pkt *cmd) MWL8K_CMD_TIMEOUT_MS); rc = -ETIMEDOUT; } else { - rc = *result ? -EINVAL : 0; + rc = cmd->result ? -EINVAL : 0; if (rc) printk(KERN_ERR "%s: Command %s error 0x%x\n", priv->name, mwl8k_cmd_name(cmd->code, buf, sizeof(buf)), - *result); + cmd->result); } return rc; @@ -1638,10 +1633,11 @@ struct mwl8k_cmd_mac_multicast_adr { struct mwl8k_cmd_pkt header; __le16 action; __le16 numaddr; - __u8 addr[1][ETH_ALEN]; + __u8 addr[0][ETH_ALEN]; }; #define MWL8K_ENABLE_RX_MULTICAST 0x000F + static int mwl8k_cmd_mac_multicast_adr(struct ieee80211_hw *hw, int mc_count, struct dev_addr_list *mclist) @@ -1649,7 +1645,8 @@ static int mwl8k_cmd_mac_multicast_adr(struct ieee80211_hw *hw, struct mwl8k_cmd_mac_multicast_adr *cmd; int index = 0; int rc; - int size = sizeof(*cmd) + ((mc_count - 1) * ETH_ALEN); + int size = sizeof(*cmd) + mc_count * ETH_ALEN; + cmd = kzalloc(size, GFP_KERNEL); if (cmd == NULL) return -ENOMEM; @@ -1658,13 +1655,13 @@ static int mwl8k_cmd_mac_multicast_adr(struct ieee80211_hw *hw, cmd->header.length = cpu_to_le16(size); cmd->action = cpu_to_le16(MWL8K_ENABLE_RX_MULTICAST); cmd->numaddr = cpu_to_le16(mc_count); - while ((index < mc_count) && mclist) { + + while (index < mc_count && mclist) { if (mclist->da_addrlen != ETH_ALEN) { rc = -EINVAL; goto mwl8k_cmd_mac_multicast_adr_exit; } - memcpy(cmd->addr[index], mclist->da_addr, ETH_ALEN); - index++; + memcpy(cmd->addr[index++], mclist->da_addr, ETH_ALEN); mclist = mclist->next; } @@ -1846,7 +1843,7 @@ struct mwl8k_cmd_set_post_scan { } __attribute__((packed)); static int -mwl8k_cmd_set_post_scan(struct ieee80211_hw *hw, __u8 mac[ETH_ALEN]) +mwl8k_cmd_set_post_scan(struct ieee80211_hw *hw, __u8 *mac) { struct mwl8k_cmd_set_post_scan *cmd; int rc; @@ -1980,7 +1977,7 @@ static int mwl8k_enable_sniffer(struct ieee80211_hw *hw, bool enable) cmd->header.code = cpu_to_le16(MWL8K_CMD_ENABLE_SNIFFER); cmd->header.length = cpu_to_le16(sizeof(*cmd)); - cmd->action = enable ? cpu_to_le32((u32)MWL8K_CMD_SET) : 0; + cmd->action = cpu_to_le32(!!enable); rc = mwl8k_post_cmd(hw, &cmd->header); kfree(cmd); @@ -1989,7 +1986,7 @@ static int mwl8k_enable_sniffer(struct ieee80211_hw *hw, bool enable) } /* - * CMD_SET_RATE_ADAPT_MODE. + * CMD_SET_RATEADAPT_MODE. */ struct mwl8k_cmd_set_rate_adapt_mode { struct mwl8k_cmd_pkt header; @@ -2117,22 +2114,18 @@ mwl8k_set_edca_params(struct ieee80211_hw *hw, __u8 qnum, __u8 aifs, __u16 txop) { struct mwl8k_cmd_set_edca_params *cmd; - u32 log_cw_min, log_cw_max; int rc; cmd = kzalloc(sizeof(*cmd), GFP_KERNEL); if (cmd == NULL) return -ENOMEM; - log_cw_min = ilog2(cw_min+1); - log_cw_max = ilog2(cw_max+1); cmd->header.code = cpu_to_le16(MWL8K_CMD_SET_EDCA_PARAMS); cmd->header.length = cpu_to_le16(sizeof(*cmd)); - cmd->action = cpu_to_le16(MWL8K_SET_EDCA_ALL); cmd->txop = cpu_to_le16(txop); - cmd->log_cw_max = (u8)log_cw_max; - cmd->log_cw_min = (u8)log_cw_min; + cmd->log_cw_max = (u8)ilog2(cw_max + 1); + cmd->log_cw_min = (u8)ilog2(cw_min + 1); cmd->aifs = aifs; cmd->txq = qnum; @@ -2173,11 +2166,7 @@ static int mwl8k_finalize_join(struct ieee80211_hw *hw, void *frame, cmd->header.code = cpu_to_le16(MWL8K_CMD_SET_FINALIZE_JOIN); cmd->header.length = cpu_to_le16(sizeof(*cmd)); - - if (dtim) - cmd->sleep_interval = cpu_to_le32(dtim); - else - cmd->sleep_interval = cpu_to_le32(1); + cmd->sleep_interval = cpu_to_le32(dtim ? dtim : 1); hdrlen = ieee80211_hdrlen(payload->frame_control); @@ -2189,8 +2178,8 @@ static int mwl8k_finalize_join(struct ieee80211_hw *hw, void *frame, "sent to firmware. Sz=%u MAX=%u\n", __func__, payload_len, MWL8K_FJ_BEACON_MAXLEN); - payload_len = payload_len > MWL8K_FJ_BEACON_MAXLEN ? - MWL8K_FJ_BEACON_MAXLEN : payload_len; + if (payload_len > MWL8K_FJ_BEACON_MAXLEN) + payload_len = MWL8K_FJ_BEACON_MAXLEN; if (payload && payload_len) memcpy(cmd->beacon_data, &payload->u.beacon, payload_len); @@ -2250,7 +2239,7 @@ static int mwl8k_cmd_update_sta_db(struct ieee80211_hw *hw, peer_info->amsdu_enabled = 0; rates = peer_info->legacy_rates; - for (count = 0 ; count < mv_vif->legacy_nrates; count++) + for (count = 0; count < mv_vif->legacy_nrates; count++) rates[count] = bitrates[count].hw_value; rc = mwl8k_post_cmd(hw, &cmd->header); @@ -2313,8 +2302,6 @@ static int mwl8k_cmd_set_aid(struct ieee80211_hw *hw, memcpy(cmd->bssid, mv_vif->bssid, ETH_ALEN); - prot_mode = MWL8K_FRAME_PROT_DISABLED; - if (info->use_cts_prot) { prot_mode = MWL8K_FRAME_PROT_11G; } else { @@ -2331,7 +2318,6 @@ static int mwl8k_cmd_set_aid(struct ieee80211_hw *hw, break; } } - cmd->protection_mode = cpu_to_le16(prot_mode); for (count = 0; count < mv_vif->legacy_nrates; count++) @@ -2934,7 +2920,7 @@ static int mwl8k_add_interface(struct ieee80211_hw *hw, mwl8k_vif->priv = priv; /* Setup initial PHY parameters */ - memcpy(mwl8k_vif->legacy_rates , + memcpy(mwl8k_vif->legacy_rates, priv->rates, sizeof(mwl8k_vif->legacy_rates)); mwl8k_vif->legacy_nrates = ARRAY_SIZE(priv->rates); @@ -3171,8 +3157,9 @@ static int mwl8k_configure_filter_wt(struct work_struct *wt) if (rc) goto mwl8k_configure_filter_exit; if (mc_count) { - mc_count = mc_count < priv->num_mcaddrs ? - mc_count : priv->num_mcaddrs; + if (mc_count > priv->num_mcaddrs) + mc_count = priv->num_mcaddrs; + rc = mwl8k_cmd_mac_multicast_adr(hw, mc_count, mclist); if (rc) printk(KERN_ERR @@ -3411,12 +3398,9 @@ static void mwl8k_tx_reclaim_handler(unsigned long data) for (i = 0; i < MWL8K_TX_QUEUES; i++) mwl8k_txq_reclaim(hw, i, 0); - if (priv->tx_wait != NULL) { - int count = mwl8k_txq_busy(priv); - if (count == 0) { - complete(priv->tx_wait); - priv->tx_wait = NULL; - } + if (priv->tx_wait != NULL && mwl8k_txq_busy(priv) == 0) { + complete(priv->tx_wait); + priv->tx_wait = NULL; } spin_unlock_bh(&priv->tx_lock); } @@ -3426,7 +3410,7 @@ static void mwl8k_finalize_join_worker(struct work_struct *work) struct mwl8k_priv *priv = container_of(work, struct mwl8k_priv, finalize_join_worker); struct sk_buff *skb = priv->beacon_skb; - u8 dtim = (MWL8K_VIF(priv->vif))->bss_info.dtim_period; + u8 dtim = MWL8K_VIF(priv->vif)->bss_info.dtim_period; mwl8k_finalize_join(priv->hw, skb->data, skb->len, dtim); dev_kfree_skb(skb); @@ -3513,7 +3497,7 @@ static int __devinit mwl8k_probe(struct pci_dev *pdev, BIT(NL80211_IFTYPE_STATION) | BIT(NL80211_IFTYPE_MONITOR); /* Set rssi and noise values to dBm */ - hw->flags |= (IEEE80211_HW_SIGNAL_DBM | IEEE80211_HW_NOISE_DBM); + hw->flags |= IEEE80211_HW_SIGNAL_DBM | IEEE80211_HW_NOISE_DBM; hw->vif_data_size = sizeof(struct mwl8k_vif); priv->vif = NULL; -- 2.39.2