[v2] libertas: Use lbs_is_cmd_allowed() check in command handling routines.

Message ID	1254882028-26154-1-git-send-email-bzhao@marvell.com (mailing list archive)
State	Not Applicable, archived
Headers	show Received: from vger.kernel.org (vger.kernel.org [209.132.176.167]) by demeter.kernel.org (8.14.2/8.14.2) with ESMTP id n9722pTo031090 for <patchwork-linux-wireless@patchwork.kernel.org>; Wed, 7 Oct 2009 02:02:51 GMT From: Bing Zhao <bzhao@marvell.com> To: libertas-dev@lists.infradead.org Cc: linux-wireless@vger.kernel.org, Bing Zhao <bzhao@marvell.com>, Amitkumar Karwar <akarwar@marvell.com> libertas: Use lbs_is_cmd_allowed() check in command handling routines. Subject: [PATCH v2] libertas: Use lbs_is_cmd_allowed() check in command handling routines. Date: Tue, 6 Oct 2009 19:20:28 -0700 Message-Id: <1254882028-26154-1-git-send-email-bzhao@marvell.com> Sender: linux-wireless-owner@vger.kernel.org Precedence: bulk

diff --git a/drivers/net/wireless/libertas/cmd.c b/drivers/net/wireless/libertas/cmd.c index 3a3e894..0fb3125 100644 --- a/drivers/net/wireless/libertas/cmd.c +++ b/drivers/net/wireless/libertas/cmd.c @@ -75,6 +75,30 @@ static u8 is_command_allowed_in_ps(u16 cmd) } /** + * @brief This function checks if the command is allowed. + * + * @param priv A pointer to lbs_private structure + * @return allowed or not allowed. + */ + +static int lbs_is_cmd_allowed(struct lbs_private *priv) +{ + int ret = 1; + + lbs_deb_enter(LBS_DEB_CMD); + + if (!priv->is_auto_deep_sleep_enabled) { + if (priv->is_deep_sleep) { + lbs_deb_cmd("command not allowed in deep sleep\n"); + ret = 0; + } + } + + lbs_deb_leave(LBS_DEB_CMD); + return ret; +} + +/** * @brief Updates the hardware details like MAC address and regulatory region * * @param priv A pointer to struct lbs_private structure @@ -1452,6 +1476,11 @@ int lbs_prepare_and_send_command(struct lbs_private *priv, goto done; } + if (!lbs_is_cmd_allowed(priv)) { + ret = -EBUSY; + goto done; + } + cmdnode = lbs_get_cmd_ctrl_node(priv); if (cmdnode == NULL) { @@ -2104,6 +2133,11 @@ static struct cmd_ctrl_node *__lbs_cmd_async(struct lbs_private *priv, goto done; } + if (!lbs_is_cmd_allowed(priv)) { + cmdnode = ERR_PTR(-EBUSY); + goto done; + } + cmdnode = lbs_get_cmd_ctrl_node(priv); if (cmdnode == NULL) { lbs_deb_host("PREP_CMD: cmdnode is NULL\n"); diff --git a/drivers/net/wireless/libertas/debugfs.c b/drivers/net/wireless/libertas/debugfs.c index 8a7e931..893a55c 100644 --- a/drivers/net/wireless/libertas/debugfs.c +++ b/drivers/net/wireless/libertas/debugfs.c @@ -117,11 +117,6 @@ static ssize_t lbs_sleepparams_write(struct file *file, if (!buf) return -ENOMEM; - if (!lbs_is_cmd_allowed(priv)) { - ret = -EBUSY; - goto out_unlock; - } - buf_size = min(count, len - 1); if (copy_from_user(buf, user_buf, buf_size)) { ret = -EFAULT; @@ -162,11 +157,6 @@ static ssize_t lbs_sleepparams_read(struct file *file, char __user *userbuf, if (!buf) return -ENOMEM; - if (!lbs_is_cmd_allowed(priv)) { - ret = -EBUSY; - goto out_unlock; - } - ret = lbs_cmd_802_11_sleep_params(priv, CMD_ACT_GET, &sp); if (ret) goto out_unlock; @@ -233,9 +223,6 @@ static ssize_t lbs_threshold_read(uint16_t tlv_type, uint16_t event_mask, u8 freq; int events = 0; - if (!lbs_is_cmd_allowed(priv)) - return -EBUSY; - buf = (char *)get_zeroed_page(GFP_KERNEL); if (!buf) return -ENOMEM; @@ -288,9 +275,6 @@ static ssize_t lbs_threshold_write(uint16_t tlv_type, uint16_t event_mask, char *buf; int ret; - if (!lbs_is_cmd_allowed(priv)) - return -EBUSY; - buf = (char *)get_zeroed_page(GFP_KERNEL); if (!buf) return -ENOMEM; @@ -460,11 +444,6 @@ static ssize_t lbs_rdmac_read(struct file *file, char __user *userbuf, if (!buf) return -ENOMEM; - if (!lbs_is_cmd_allowed(priv)) { - free_page(addr); - return -EBUSY; - } - offval.offset = priv->mac_offset; offval.value = 0; @@ -517,11 +496,6 @@ static ssize_t lbs_wrmac_write(struct file *file, if (!buf) return -ENOMEM; - if (!lbs_is_cmd_allowed(priv)) { - res = -EBUSY; - goto out_unlock; - } - buf_size = min(count, len - 1); if (copy_from_user(buf, userbuf, buf_size)) { res = -EFAULT; @@ -558,11 +532,6 @@ static ssize_t lbs_rdbbp_read(struct file *file, char __user *userbuf, if (!buf) return -ENOMEM; - if (!lbs_is_cmd_allowed(priv)) { - free_page(addr); - return -EBUSY; - } - offval.offset = priv->bbp_offset; offval.value = 0; @@ -616,11 +585,6 @@ static ssize_t lbs_wrbbp_write(struct file *file, if (!buf) return -ENOMEM; - if (!lbs_is_cmd_allowed(priv)) { - res = -EBUSY; - goto out_unlock; - } - buf_size = min(count, len - 1); if (copy_from_user(buf, userbuf, buf_size)) { res = -EFAULT; @@ -657,11 +621,6 @@ static ssize_t lbs_rdrf_read(struct file *file, char __user *userbuf, if (!buf) return -ENOMEM; - if (!lbs_is_cmd_allowed(priv)) { - free_page(addr); - return -EBUSY; - } - offval.offset = priv->rf_offset; offval.value = 0; @@ -715,11 +674,6 @@ static ssize_t lbs_wrrf_write(struct file *file, if (!buf) return -ENOMEM; - if (!lbs_is_cmd_allowed(priv)) { - res = -EBUSY; - goto out_unlock; - } - buf_size = min(count, len - 1); if (copy_from_user(buf, userbuf, buf_size)) { res = -EFAULT; diff --git a/drivers/net/wireless/libertas/decl.h b/drivers/net/wireless/libertas/decl.h index 44f0b24..fb91c36 100644 --- a/drivers/net/wireless/libertas/decl.h +++ b/drivers/net/wireless/libertas/decl.h @@ -34,7 +34,6 @@ int lbs_process_event(struct lbs_private *priv, u32 event); void lbs_queue_event(struct lbs_private *priv, u32 event); void lbs_notify_command_response(struct lbs_private *priv, u8 resp_idx); int lbs_set_deep_sleep(struct lbs_private *priv, int deep_sleep); -int lbs_is_cmd_allowed(struct lbs_private *priv); int lbs_enter_auto_deep_sleep(struct lbs_private *priv); int lbs_exit_auto_deep_sleep(struct lbs_private *priv); diff --git a/drivers/net/wireless/libertas/scan.c b/drivers/net/wireless/libertas/scan.c index e468e15..6c95af3 100644 --- a/drivers/net/wireless/libertas/scan.c +++ b/drivers/net/wireless/libertas/scan.c @@ -950,11 +950,6 @@ int lbs_set_scan(struct net_device *dev, struct iw_request_info *info, lbs_deb_enter(LBS_DEB_WEXT); - if (!lbs_is_cmd_allowed(priv)) { - ret = -EBUSY; - goto out; - } - if (!priv->radio_on) { ret = -EINVAL; goto out; @@ -1022,12 +1017,6 @@ int lbs_get_scan(struct net_device *dev, struct iw_request_info *info, lbs_deb_enter(LBS_DEB_WEXT); - if (!lbs_is_cmd_allowed(priv)) { - err = -EBUSY; - lbs_deb_leave_args(LBS_DEB_WEXT, "ret %d", err); - return err; - } - /* iwlist should wait until the current scan is finished */ if (priv->scan_channel) return -EAGAIN; diff --git a/drivers/net/wireless/libertas/wext.c b/drivers/net/wireless/libertas/wext.c index 38a451e..69dd19b 100644 --- a/drivers/net/wireless/libertas/wext.c +++ b/drivers/net/wireless/libertas/wext.c @@ -46,32 +46,6 @@ static inline void lbs_cancel_association_work(struct lbs_private *priv) } /** - * @brief This function checks if the command is allowed. - * - * @param priv A pointer to lbs_private structure - * @return allowed or not allowed. - */ - -int lbs_is_cmd_allowed(struct lbs_private *priv) -{ - int ret = 1; - - lbs_deb_enter(LBS_DEB_WEXT); - - if (!priv->is_auto_deep_sleep_enabled) { - if (priv->is_deep_sleep) { - lbs_deb_wext("IOCTLS called when station" - "is in deep sleep\n"); - ret = 0; - } - } - - lbs_deb_leave(LBS_DEB_WEXT); - return ret; -} - - -/** * @brief Find the channel frequency power info with specific channel * * @param priv A pointer to struct lbs_private structure @@ -193,11 +167,6 @@ static int lbs_get_freq(struct net_device *dev, struct iw_request_info *info, lbs_deb_enter(LBS_DEB_WEXT); - if (!lbs_is_cmd_allowed(priv)) { - lbs_deb_leave(LBS_DEB_WEXT); - return -EBUSY; - } - cfp = lbs_find_cfp_by_band_and_channel(priv, 0, priv->curbssparams.channel); @@ -308,12 +277,6 @@ static int lbs_set_rts(struct net_device *dev, struct iw_request_info *info, lbs_deb_enter(LBS_DEB_WEXT); - if (!lbs_is_cmd_allowed(priv)) { - ret = -EBUSY; - lbs_deb_leave_args(LBS_DEB_WEXT, "ret %d", ret); - return ret; - } - if (vwrq->disabled) val = MRVDRV_RTS_MAX_VALUE; @@ -335,11 +298,6 @@ static int lbs_get_rts(struct net_device *dev, struct iw_request_info *info, lbs_deb_enter(LBS_DEB_WEXT); - if (!lbs_is_cmd_allowed(priv)) { - ret = -EBUSY; - goto out; - } - ret = lbs_get_snmp_mib(priv, SNMP_MIB_OID_RTS_THRESHOLD, &val); if (ret) goto out; @@ -362,12 +320,6 @@ static int lbs_set_frag(struct net_device *dev, struct iw_request_info *info, lbs_deb_enter(LBS_DEB_WEXT); - if (!lbs_is_cmd_allowed(priv)) { - ret = -EBUSY; - lbs_deb_leave_args(LBS_DEB_WEXT, "ret %d", ret); - return ret; - } - if (vwrq->disabled) val = MRVDRV_FRAG_MAX_VALUE; @@ -389,11 +341,6 @@ static int lbs_get_frag(struct net_device *dev, struct iw_request_info *info, lbs_deb_enter(LBS_DEB_WEXT); - if (!lbs_is_cmd_allowed(priv)) { - ret = -EBUSY; - goto out; - } - ret = lbs_get_snmp_mib(priv, SNMP_MIB_OID_FRAG_THRESHOLD, &val); if (ret) goto out; @@ -443,11 +390,6 @@ static int lbs_get_txpow(struct net_device *dev, lbs_deb_enter(LBS_DEB_WEXT); - if (!lbs_is_cmd_allowed(priv)) { - ret = -EBUSY; - goto out; - } - if (!priv->radio_on) { lbs_deb_wext("tx power off\n"); vwrq->value = 0; @@ -481,11 +423,6 @@ static int lbs_set_retry(struct net_device *dev, struct iw_request_info *info, lbs_deb_enter(LBS_DEB_WEXT); - if (!lbs_is_cmd_allowed(priv)) { - ret = -EBUSY; - goto out; - } - if ((vwrq->flags & IW_RETRY_TYPE) != IW_RETRY_LIMIT) return -EOPNOTSUPP; @@ -534,11 +471,6 @@ static int lbs_get_retry(struct net_device *dev, struct iw_request_info *info, lbs_deb_enter(LBS_DEB_WEXT); - if (!lbs_is_cmd_allowed(priv)) { - ret = -EBUSY; - goto out; - } - vwrq->disabled = 0; if (vwrq->flags & IW_RETRY_LONG) { @@ -907,9 +839,6 @@ static struct iw_statistics *lbs_get_wireless_stats(struct net_device *dev) lbs_deb_enter(LBS_DEB_WEXT); - if (!lbs_is_cmd_allowed(priv)) - return NULL; - priv->wstats.status = priv->mode; /* If we're not associated, all quality values are meaningless */ @@ -1010,12 +939,6 @@ static int lbs_set_freq(struct net_device *dev, struct iw_request_info *info, lbs_deb_enter(LBS_DEB_WEXT); - if (!lbs_is_cmd_allowed(priv)) { - ret = -EBUSY; - lbs_deb_leave_args(LBS_DEB_WEXT, "ret %d", ret); - return ret; - } - mutex_lock(&priv->lock); assoc_req = lbs_get_association_request(priv); if (!assoc_req) { @@ -1125,11 +1048,6 @@ static int lbs_set_rate(struct net_device *dev, struct iw_request_info *info, lbs_deb_enter(LBS_DEB_WEXT); - if (!lbs_is_cmd_allowed(priv)) { - ret = -EBUSY; - goto out; - } - lbs_deb_wext("vwrq->value %d\n", vwrq->value); lbs_deb_wext("vwrq->fixed %d\n", vwrq->fixed); @@ -1188,11 +1106,6 @@ static int lbs_get_rate(struct net_device *dev, struct iw_request_info *info, lbs_deb_enter(LBS_DEB_WEXT); - if (!lbs_is_cmd_allowed(priv)) { - lbs_deb_leave(LBS_DEB_WEXT); - return -EBUSY; - } - if (priv->connect_status == LBS_CONNECTED) { vwrq->value = priv->cur_rate * 500000; @@ -1219,11 +1132,6 @@ static int lbs_set_mode(struct net_device *dev, lbs_deb_enter(LBS_DEB_WEXT); - if (!lbs_is_cmd_allowed(priv)) { - ret = -EBUSY; - goto out; - } - if ( (*uwrq != IW_MODE_ADHOC) && (*uwrq != IW_MODE_INFRA) && (*uwrq != IW_MODE_AUTO)) { @@ -1465,12 +1373,6 @@ static int lbs_set_encode(struct net_device *dev, lbs_deb_enter(LBS_DEB_WEXT); - if (!lbs_is_cmd_allowed(priv)) { - ret = -EBUSY; - lbs_deb_leave_args(LBS_DEB_WEXT, "ret %d", ret); - return ret; - } - mutex_lock(&priv->lock); assoc_req = lbs_get_association_request(priv); if (!assoc_req) { @@ -1654,12 +1556,6 @@ static int lbs_set_encodeext(struct net_device *dev, lbs_deb_enter(LBS_DEB_WEXT); - if (!lbs_is_cmd_allowed(priv)) { - ret = -EBUSY; - lbs_deb_leave_args(LBS_DEB_WEXT, "ret %d", ret); - return ret; - } - mutex_lock(&priv->lock); assoc_req = lbs_get_association_request(priv); if (!assoc_req) { @@ -1872,12 +1768,6 @@ static int lbs_set_auth(struct net_device *dev, lbs_deb_enter(LBS_DEB_WEXT); - if (!lbs_is_cmd_allowed(priv)) { - ret = -EBUSY; - lbs_deb_leave_args(LBS_DEB_WEXT, "ret %d", ret); - return ret; - } - mutex_lock(&priv->lock); assoc_req = lbs_get_association_request(priv); if (!assoc_req) { @@ -1980,12 +1870,6 @@ static int lbs_get_auth(struct net_device *dev, lbs_deb_enter(LBS_DEB_WEXT); - if (!lbs_is_cmd_allowed(priv)) { - ret = -EBUSY; - lbs_deb_leave_args(LBS_DEB_WEXT, "ret %d", ret); - return ret; - } - switch (dwrq->flags & IW_AUTH_INDEX) { case IW_AUTH_KEY_MGMT: dwrq->value = priv->secinfo.key_mgmt; @@ -2028,11 +1912,6 @@ static int lbs_set_txpow(struct net_device *dev, struct iw_request_info *info, lbs_deb_enter(LBS_DEB_WEXT); - if (!lbs_is_cmd_allowed(priv)) { - ret = -EBUSY; - goto out; - } - if (vwrq->disabled) { lbs_set_radio(priv, RADIO_PREAMBLE_AUTO, 0); goto out; @@ -2152,12 +2031,6 @@ static int lbs_set_essid(struct net_device *dev, struct iw_request_info *info, lbs_deb_enter(LBS_DEB_WEXT); - if (!lbs_is_cmd_allowed(priv)) { - ret = -EBUSY; - lbs_deb_leave_args(LBS_DEB_WEXT, "ret %d", ret); - return ret; - } - if (!priv->radio_on) { ret = -EINVAL; goto out; @@ -2285,12 +2158,6 @@ static int lbs_set_wap(struct net_device *dev, struct iw_request_info *info, lbs_deb_enter(LBS_DEB_WEXT); - if (!lbs_is_cmd_allowed(priv)) { - ret = -EBUSY; - lbs_deb_leave_args(LBS_DEB_WEXT, "ret %d", ret); - return ret; - } - if (!priv->radio_on) return -EINVAL;

[v2] libertas: Use lbs_is_cmd_allowed() check in command handling routines.

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