From 17d6e557359e0a4033bf0889e0b481519e145404 Mon Sep 17 00:00:00 2001 From: Stanislaw Gruszka Date: Mon, 29 Aug 2011 12:52:20 +0200 Subject: [PATCH] iwlegacy: remove for_each_context We do not support many contexts. Signed-off-by: Stanislaw Gruszka --- drivers/net/wireless/iwlegacy/iwl-4965-sta.c | 11 +- drivers/net/wireless/iwlegacy/iwl-core.c | 204 +++++++------------ drivers/net/wireless/iwlegacy/iwl-debugfs.c | 28 ++- drivers/net/wireless/iwlegacy/iwl-scan.c | 20 +- drivers/net/wireless/iwlegacy/iwl-sta.h | 22 +- drivers/net/wireless/iwlegacy/iwl3945-base.c | 4 +- drivers/net/wireless/iwlegacy/iwl4965-base.c | 52 ++--- 7 files changed, 127 insertions(+), 214 deletions(-) diff --git a/drivers/net/wireless/iwlegacy/iwl-4965-sta.c b/drivers/net/wireless/iwlegacy/iwl-4965-sta.c index 4cda277418f6..337bf0c1c4c2 100644 --- a/drivers/net/wireless/iwlegacy/iwl-4965-sta.c +++ b/drivers/net/wireless/iwlegacy/iwl-4965-sta.c @@ -615,16 +615,7 @@ static int il4965_update_bcast_station(struct il_priv *il, int il4965_update_bcast_stations(struct il_priv *il) { - struct il_rxon_context *ctx; - int ret = 0; - - for_each_context(il, ctx) { - ret = il4965_update_bcast_station(il, ctx); - if (ret) - break; - } - - return ret; + return il4965_update_bcast_station(il, &il->ctx); } /** diff --git a/drivers/net/wireless/iwlegacy/iwl-core.c b/drivers/net/wireless/iwlegacy/iwl-core.c index de952fb0a96f..bd222f50d26c 100644 --- a/drivers/net/wireless/iwlegacy/iwl-core.c +++ b/drivers/net/wireless/iwlegacy/iwl-core.c @@ -646,10 +646,7 @@ static void _il_set_rxon_ht(struct il_priv *il, void il_set_rxon_ht(struct il_priv *il, struct il_ht_config *ht_conf) { - struct il_rxon_context *ctx; - - for_each_context(il, ctx) - _il_set_rxon_ht(il, ht_conf, ctx); + _il_set_rxon_ht(il, ht_conf, &il->ctx); } EXPORT_SYMBOL(il_set_rxon_ht); @@ -661,7 +658,6 @@ u8 il_get_single_channel_number(struct il_priv *il, int i; u8 channel = 0; u8 min, max; - struct il_rxon_context *ctx; if (band == IEEE80211_BAND_5GHZ) { min = 14; @@ -672,19 +668,10 @@ u8 il_get_single_channel_number(struct il_priv *il, } for (i = min; i < max; i++) { - bool busy = false; - - for_each_context(il, ctx) { - busy = il->channel_info[i].channel == - le16_to_cpu(ctx->staging.channel); - if (busy) - break; - } - - if (busy) + channel = il->channel_info[i].channel; + if (channel == le16_to_cpu(il->ctx.staging.channel)) continue; - channel = il->channel_info[i].channel; ch_info = il_get_channel_info(il, band, channel); if (il_is_channel_valid(ch_info)) break; @@ -822,7 +809,6 @@ void il_set_rate(struct il_priv *il) { const struct ieee80211_supported_band *hw = NULL; struct ieee80211_rate *rate; - struct il_rxon_context *ctx; int i; hw = il_get_hw_mode(il, il->band); @@ -841,13 +827,11 @@ void il_set_rate(struct il_priv *il) D_RATE("Set active_rate = %0x\n", il->active_rate); - for_each_context(il, ctx) { - ctx->staging.cck_basic_rates = + il->ctx.staging.cck_basic_rates = (IL_CCK_BASIC_RATES_MASK >> IL_FIRST_CCK_RATE) & 0xF; - ctx->staging.ofdm_basic_rates = + il->ctx.staging.ofdm_basic_rates = (IL_OFDM_BASIC_RATES_MASK >> IL_FIRST_OFDM_RATE) & 0xFF; - } } EXPORT_SYMBOL(il_set_rate); @@ -1254,7 +1238,6 @@ int il_mac_conf_tx(struct ieee80211_hw *hw, const struct ieee80211_tx_queue_params *params) { struct il_priv *il = hw->priv; - struct il_rxon_context *ctx; unsigned long flags; int q; @@ -1274,17 +1257,15 @@ int il_mac_conf_tx(struct ieee80211_hw *hw, spin_lock_irqsave(&il->lock, flags); - for_each_context(il, ctx) { - ctx->qos_data.def_qos_parm.ac[q].cw_min = + il->ctx.qos_data.def_qos_parm.ac[q].cw_min = cpu_to_le16(params->cw_min); - ctx->qos_data.def_qos_parm.ac[q].cw_max = + il->ctx.qos_data.def_qos_parm.ac[q].cw_max = cpu_to_le16(params->cw_max); - ctx->qos_data.def_qos_parm.ac[q].aifsn = params->aifs; - ctx->qos_data.def_qos_parm.ac[q].edca_txop = + il->ctx.qos_data.def_qos_parm.ac[q].aifsn = params->aifs; + il->ctx.qos_data.def_qos_parm.ac[q].edca_txop = cpu_to_le16((params->txop * 32)); - ctx->qos_data.def_qos_parm.ac[q].reserved1 = 0; - } + il->ctx.qos_data.def_qos_parm.ac[q].reserved1 = 0; spin_unlock_irqrestore(&il->lock, flags); @@ -1344,8 +1325,8 @@ il_mac_add_interface(struct ieee80211_hw *hw, struct ieee80211_vif *vif) { struct il_priv *il = hw->priv; struct il_vif_priv *vif_priv = (void *)vif->drv_priv; - struct il_rxon_context *tmp, *ctx = NULL; int err; + u32 modes; D_MAC80211("enter: type %d, addr %pM\n", vif->type, vif->addr); @@ -1358,42 +1339,29 @@ il_mac_add_interface(struct ieee80211_hw *hw, struct ieee80211_vif *vif) goto out; } - for_each_context(il, tmp) { - u32 possible_modes = - tmp->interface_modes | tmp->exclusive_interface_modes; - - if (tmp->vif) { - /* check if this busy context is exclusive */ - if (tmp->exclusive_interface_modes & - BIT(tmp->vif->type)) { - err = -EINVAL; - goto out; - } - continue; - } - if (!(possible_modes & BIT(vif->type))) - continue; - - /* have maybe usable context w/o interface */ - ctx = tmp; - break; + /* check if busy context is exclusive */ + if (il->ctx.vif && + (il->ctx.exclusive_interface_modes & BIT(il->ctx.vif->type))) { + err = -EINVAL; + goto out; } - if (!ctx) { + modes = il->ctx.interface_modes | il->ctx.exclusive_interface_modes; + if (!(modes & BIT(vif->type))) { err = -EOPNOTSUPP; goto out; } - vif_priv->ctx = ctx; - ctx->vif = vif; + vif_priv->ctx = &il->ctx; + il->ctx.vif = vif; - err = il_setup_interface(il, ctx); - if (!err) - goto out; + err = il_setup_interface(il, &il->ctx); + if (err) { + il->ctx.vif = NULL; + il->iw_mode = NL80211_IFTYPE_STATION; + } - ctx->vif = NULL; - il->iw_mode = NL80211_IFTYPE_STATION; out: mutex_unlock(&il->mutex); @@ -1764,8 +1732,7 @@ il_mac_change_interface(struct ieee80211_hw *hw, { struct il_priv *il = hw->priv; struct il_rxon_context *ctx = il_rxon_ctx_from_vif(vif); - struct il_rxon_context *tmp; - u32 interface_modes; + u32 modes; int err; newtype = ieee80211_iftype_p2p(newtype, newp2p); @@ -1781,28 +1748,16 @@ il_mac_change_interface(struct ieee80211_hw *hw, goto out; } - interface_modes = ctx->interface_modes | ctx->exclusive_interface_modes; - - if (!(interface_modes & BIT(newtype))) { - err = -EBUSY; + modes = ctx->interface_modes | ctx->exclusive_interface_modes; + if (!(modes & BIT(newtype))) { + err = -EOPNOTSUPP; goto out; } - if (ctx->exclusive_interface_modes & BIT(newtype)) { - for_each_context(il, tmp) { - if (ctx == tmp) - continue; - - if (!tmp->vif) - continue; - - /* - * The current mode switch would be exclusive, but - * another context is active ... refuse the switch. - */ - err = -EBUSY; - goto out; - } + if ((il->ctx.exclusive_interface_modes & BIT(il->ctx.vif->type)) || + (il->ctx.exclusive_interface_modes & BIT(newtype))) { + err = -EINVAL; + goto out; } /* success */ @@ -2064,7 +2019,7 @@ int il_mac_config(struct ieee80211_hw *hw, u32 changed) struct ieee80211_conf *conf = &hw->conf; struct ieee80211_channel *channel = conf->channel; struct il_ht_config *ht_conf = &il->current_ht_config; - struct il_rxon_context *ctx; + struct il_rxon_context *ctx = &il->ctx; unsigned long flags = 0; int ret = 0; u16 ch; @@ -2097,14 +2052,14 @@ int il_mac_config(struct ieee80211_hw *hw, u32 changed) * configured. */ if (il->cfg->ops->hcmd->set_rxon_chain) - for_each_context(il, ctx) - il->cfg->ops->hcmd->set_rxon_chain(il, ctx); + il->cfg->ops->hcmd->set_rxon_chain(il, &il->ctx); } /* during scanning mac80211 will delay channel setting until * scan finish with changed = 0 */ if (!changed || (changed & IEEE80211_CONF_CHANGE_CHANNEL)) { + if (scan_active) goto set_ch_out; @@ -2125,48 +2080,46 @@ int il_mac_config(struct ieee80211_hw *hw, u32 changed) spin_lock_irqsave(&il->lock, flags); - for_each_context(il, ctx) { - /* Configure HT40 channels */ - if (ctx->ht.enabled != conf_is_ht(conf)) { - ctx->ht.enabled = conf_is_ht(conf); - ht_changed = true; - } - if (ctx->ht.enabled) { - if (conf_is_ht40_minus(conf)) { - ctx->ht.extension_chan_offset = - IEEE80211_HT_PARAM_CHA_SEC_BELOW; - ctx->ht.is_40mhz = true; - } else if (conf_is_ht40_plus(conf)) { - ctx->ht.extension_chan_offset = - IEEE80211_HT_PARAM_CHA_SEC_ABOVE; - ctx->ht.is_40mhz = true; - } else { - ctx->ht.extension_chan_offset = - IEEE80211_HT_PARAM_CHA_SEC_NONE; - ctx->ht.is_40mhz = false; - } - } else + /* Configure HT40 channels */ + if (ctx->ht.enabled != conf_is_ht(conf)) { + ctx->ht.enabled = conf_is_ht(conf); + ht_changed = true; + } + if (ctx->ht.enabled) { + if (conf_is_ht40_minus(conf)) { + ctx->ht.extension_chan_offset = + IEEE80211_HT_PARAM_CHA_SEC_BELOW; + ctx->ht.is_40mhz = true; + } else if (conf_is_ht40_plus(conf)) { + ctx->ht.extension_chan_offset = + IEEE80211_HT_PARAM_CHA_SEC_ABOVE; + ctx->ht.is_40mhz = true; + } else { + ctx->ht.extension_chan_offset = + IEEE80211_HT_PARAM_CHA_SEC_NONE; ctx->ht.is_40mhz = false; + } + } else + ctx->ht.is_40mhz = false; - /* - * Default to no protection. Protection mode will - * later be set from BSS config in il_ht_conf - */ - ctx->ht.protection = - IEEE80211_HT_OP_MODE_PROTECTION_NONE; + /* + * Default to no protection. Protection mode will + * later be set from BSS config in il_ht_conf + */ + ctx->ht.protection = + IEEE80211_HT_OP_MODE_PROTECTION_NONE; - /* if we are switching from ht to 2.4 clear flags - * from any ht related info since 2.4 does not - * support ht */ - if ((le16_to_cpu(ctx->staging.channel) != ch)) - ctx->staging.flags = 0; + /* if we are switching from ht to 2.4 clear flags + * from any ht related info since 2.4 does not + * support ht */ + if ((le16_to_cpu(ctx->staging.channel) != ch)) + ctx->staging.flags = 0; - il_set_rxon_channel(il, channel, ctx); - il_set_rxon_ht(il, ht_conf); + il_set_rxon_channel(il, channel, ctx); + il_set_rxon_ht(il, ht_conf); - il_set_flags_for_band(il, ctx, channel->band, - ctx->vif); - } + il_set_flags_for_band(il, ctx, channel->band, + ctx->vif); spin_unlock_irqrestore(&il->lock, flags); @@ -2203,15 +2156,12 @@ int il_mac_config(struct ieee80211_hw *hw, u32 changed) if (scan_active) goto out; - for_each_context(il, ctx) { - if (memcmp(&ctx->active, &ctx->staging, sizeof(ctx->staging))) - il_commit_rxon(il, ctx); - else - D_INFO( - "Not re-sending same RXON configuration.\n"); - if (ht_changed) - il_update_qos(il, ctx); - } + if (memcmp(&ctx->active, &ctx->staging, sizeof(ctx->staging))) + il_commit_rxon(il, ctx); + else + D_INFO("Not re-sending same RXON configuration.\n"); + if (ht_changed) + il_update_qos(il, ctx); out: D_MAC80211("leave\n"); diff --git a/drivers/net/wireless/iwlegacy/iwl-debugfs.c b/drivers/net/wireless/iwlegacy/iwl-debugfs.c index e8153b0dc5b7..8448db7d8f39 100644 --- a/drivers/net/wireless/iwlegacy/iwl-debugfs.c +++ b/drivers/net/wireless/iwlegacy/iwl-debugfs.c @@ -599,26 +599,24 @@ il_dbgfs_qos_read(struct file *file, char __user *user_buf, size_t count, loff_t *ppos) { struct il_priv *il = file->private_data; - struct il_rxon_context *ctx; + struct il_rxon_context *ctx = &il->ctx; int pos = 0, i; char buf[256]; const size_t bufsz = sizeof(buf); - for_each_context(il, ctx) { - pos += scnprintf(buf + pos, bufsz - pos, "context %d:\n", - ctx->ctxid); - for (i = 0; i < AC_NUM; i++) { - pos += scnprintf(buf + pos, bufsz - pos, - "\tcw_min\tcw_max\taifsn\ttxop\n"); - pos += scnprintf(buf + pos, bufsz - pos, - "AC[%d]\t%u\t%u\t%u\t%u\n", i, - ctx->qos_data.def_qos_parm.ac[i].cw_min, - ctx->qos_data.def_qos_parm.ac[i].cw_max, - ctx->qos_data.def_qos_parm.ac[i].aifsn, - ctx->qos_data.def_qos_parm.ac[i].edca_txop); - } - pos += scnprintf(buf + pos, bufsz - pos, "\n"); + pos += scnprintf(buf + pos, bufsz - pos, "context %d:\n", + ctx->ctxid); + for (i = 0; i < AC_NUM; i++) { + pos += scnprintf(buf + pos, bufsz - pos, + "\tcw_min\tcw_max\taifsn\ttxop\n"); + pos += scnprintf(buf + pos, bufsz - pos, + "AC[%d]\t%u\t%u\t%u\t%u\n", i, + ctx->qos_data.def_qos_parm.ac[i].cw_min, + ctx->qos_data.def_qos_parm.ac[i].cw_max, + ctx->qos_data.def_qos_parm.ac[i].aifsn, + ctx->qos_data.def_qos_parm.ac[i].edca_txop); } + return simple_read_from_buffer(user_buf, count, ppos, buf, pos); } diff --git a/drivers/net/wireless/iwlegacy/iwl-scan.c b/drivers/net/wireless/iwlegacy/iwl-scan.c index 71b2fac1b5d3..18226d1988a7 100644 --- a/drivers/net/wireless/iwlegacy/iwl-scan.c +++ b/drivers/net/wireless/iwlegacy/iwl-scan.c @@ -290,7 +290,9 @@ u16 il_get_passive_dwell_time(struct il_priv *il, enum ieee80211_band band, struct ieee80211_vif *vif) { - struct il_rxon_context *ctx; + struct il_rxon_context *ctx = &il->ctx; + u16 value; + u16 passive = (band == IEEE80211_BAND_2GHZ) ? IL_PASSIVE_DWELL_BASE + IL_PASSIVE_DWELL_TIME_24 : IL_PASSIVE_DWELL_BASE + IL_PASSIVE_DWELL_TIME_52; @@ -301,17 +303,11 @@ u16 il_get_passive_dwell_time(struct il_priv *il, * dwell time to be 98% of the smallest beacon interval * (minus 2 * channel tune time) */ - for_each_context(il, ctx) { - u16 value; - - if (!il_is_associated_ctx(ctx)) - continue; - value = ctx->vif ? ctx->vif->bss_conf.beacon_int : 0; - if (value > IL_PASSIVE_DWELL_BASE || !value) - value = IL_PASSIVE_DWELL_BASE; - value = (value * 98) / 100 - IL_CHANNEL_TUNE_TIME * 2; - passive = min(value, passive); - } + value = ctx->vif ? ctx->vif->bss_conf.beacon_int : 0; + if (value > IL_PASSIVE_DWELL_BASE || !value) + value = IL_PASSIVE_DWELL_BASE; + value = (value * 98) / 100 - IL_CHANNEL_TUNE_TIME * 2; + passive = min(value, passive); } return passive; diff --git a/drivers/net/wireless/iwlegacy/iwl-sta.h b/drivers/net/wireless/iwlegacy/iwl-sta.h index f07cd7f7b8ae..afd3003f654b 100644 --- a/drivers/net/wireless/iwlegacy/iwl-sta.h +++ b/drivers/net/wireless/iwlegacy/iwl-sta.h @@ -84,7 +84,7 @@ int il_send_lq_cmd(struct il_priv *il, static inline void il_clear_driver_stations(struct il_priv *il) { unsigned long flags; - struct il_rxon_context *ctx; + struct il_rxon_context *ctx = &il->ctx; spin_lock_irqsave(&il->sta_lock, flags); memset(il->stations, 0, sizeof(il->stations)); @@ -92,17 +92,15 @@ static inline void il_clear_driver_stations(struct il_priv *il) il->ucode_key_table = 0; - for_each_context(il, ctx) { - /* - * Remove all key information that is not stored as part - * of station information since mac80211 may not have had - * a chance to remove all the keys. When device is - * reconfigured by mac80211 after an error all keys will - * be reconfigured. - */ - memset(ctx->wep_keys, 0, sizeof(ctx->wep_keys)); - ctx->key_mapping_keys = 0; - } + /* + * Remove all key information that is not stored as part + * of station information since mac80211 may not have had + * a chance to remove all the keys. When device is + * reconfigured by mac80211 after an error all keys will + * be reconfigured. + */ + memset(ctx->wep_keys, 0, sizeof(ctx->wep_keys)); + ctx->key_mapping_keys = 0; spin_unlock_irqrestore(&il->sta_lock, flags); } diff --git a/drivers/net/wireless/iwlegacy/iwl3945-base.c b/drivers/net/wireless/iwlegacy/iwl3945-base.c index 41104e72d299..151c8faa18dd 100644 --- a/drivers/net/wireless/iwlegacy/iwl3945-base.c +++ b/drivers/net/wireless/iwlegacy/iwl3945-base.c @@ -2710,10 +2710,8 @@ static void il3945_bg_restart(struct work_struct *data) return; if (test_and_clear_bit(STATUS_FW_ERROR, &il->status)) { - struct il_rxon_context *ctx; mutex_lock(&il->mutex); - for_each_context(il, ctx) - ctx->vif = NULL; + il->ctx.vif = NULL; il->is_open = 0; mutex_unlock(&il->mutex); il3945_down(il); diff --git a/drivers/net/wireless/iwlegacy/iwl4965-base.c b/drivers/net/wireless/iwlegacy/iwl4965-base.c index 043d51e9d59e..df86431d3bae 100644 --- a/drivers/net/wireless/iwlegacy/iwl4965-base.c +++ b/drivers/net/wireless/iwlegacy/iwl4965-base.c @@ -89,14 +89,10 @@ MODULE_ALIAS("iwl4965"); void il4965_update_chain_flags(struct il_priv *il) { - struct il_rxon_context *ctx; - if (il->cfg->ops->hcmd->set_rxon_chain) { - for_each_context(il, ctx) { - il->cfg->ops->hcmd->set_rxon_chain(il, ctx); - if (ctx->active.rx_chain != ctx->staging.rx_chain) - il_commit_rxon(il, ctx); - } + il->cfg->ops->hcmd->set_rxon_chain(il, &il->ctx); + if (il->ctx.active.rx_chain != il->ctx.staging.rx_chain) + il_commit_rxon(il, &il->ctx); } } @@ -1766,10 +1762,8 @@ static void il4965_alive_start(struct il_priv *il) ctx->staging.filter_flags |= RXON_FILTER_ASSOC_MSK; active_rxon->filter_flags &= ~RXON_FILTER_ASSOC_MSK; } else { - struct il_rxon_context *tmp; /* Initialize our rx_config data */ - for_each_context(il, tmp) - il_connection_init_rx_config(il, tmp); + il_connection_init_rx_config(il, &il->ctx); if (il->cfg->ops->hcmd->set_rxon_chain) il->cfg->ops->hcmd->set_rxon_chain(il, ctx); @@ -1950,7 +1944,6 @@ static int il4965_prepare_card_hw(struct il_priv *il) static int __il4965_up(struct il_priv *il) { - struct il_rxon_context *ctx; int i; int ret; @@ -1964,12 +1957,10 @@ static int __il4965_up(struct il_priv *il) return -EIO; } - for_each_context(il, ctx) { - ret = il4965_alloc_bcast_station(il, ctx); - if (ret) { - il_dealloc_bcast_stations(il); - return ret; - } + ret = il4965_alloc_bcast_station(il, &il->ctx); + if (ret) { + il_dealloc_bcast_stations(il); + return ret; } il4965_prepare_card_hw(il); @@ -2121,11 +2112,8 @@ static void il4965_bg_restart(struct work_struct *data) return; if (test_and_clear_bit(STATUS_FW_ERROR, &il->status)) { - struct il_rxon_context *ctx; - mutex_lock(&il->mutex); - for_each_context(il, ctx) - ctx->vif = NULL; + il->ctx.vif = NULL; il->is_open = 0; __il4965_down(il); @@ -2177,7 +2165,6 @@ static int il4965_mac_setup_register(struct il_priv *il, { int ret; struct ieee80211_hw *hw = il->hw; - struct il_rxon_context *ctx; hw->rate_control_algorithm = "iwl-4965-rs"; @@ -2195,10 +2182,8 @@ static int il4965_mac_setup_register(struct il_priv *il, hw->sta_data_size = sizeof(struct il_station_priv); hw->vif_data_size = sizeof(struct il_vif_priv); - for_each_context(il, ctx) { - hw->wiphy->interface_modes |= ctx->interface_modes; - hw->wiphy->interface_modes |= ctx->exclusive_interface_modes; - } + hw->wiphy->interface_modes |= il->ctx.interface_modes; + hw->wiphy->interface_modes |= il->ctx.exclusive_interface_modes; hw->wiphy->flags |= WIPHY_FLAG_CUSTOM_REGULATORY | WIPHY_FLAG_DISABLE_BEACON_HINTS; @@ -2590,7 +2575,6 @@ void il4965_configure_filter(struct ieee80211_hw *hw, { struct il_priv *il = hw->priv; __le32 filter_or = 0, filter_nand = 0; - struct il_rxon_context *ctx; #define CHK(test, flag) do { \ if (*total_flags & (test)) \ @@ -2611,15 +2595,13 @@ void il4965_configure_filter(struct ieee80211_hw *hw, mutex_lock(&il->mutex); - for_each_context(il, ctx) { - ctx->staging.filter_flags &= ~filter_nand; - ctx->staging.filter_flags |= filter_or; + il->ctx.staging.filter_flags &= ~filter_nand; + il->ctx.staging.filter_flags |= filter_or; - /* - * Not committing directly because hardware can perform a scan, - * but we'll eventually commit the filter flags change anyway. - */ - } + /* + * Not committing directly because hardware can perform a scan, + * but we'll eventually commit the filter flags change anyway. + */ mutex_unlock(&il->mutex); -- 2.39.5