From 2a00def4d6e50cbfa7588887fdbe2a97042e42bb Mon Sep 17 00:00:00 2001 From: Larry Finger Date: Wed, 11 Jul 2012 14:32:33 -0500 Subject: rtlwifi: Remove extra argument from queue setup routine Remove unused argument hw from call to rtl_tid_to_ac(). Signed-off-by: Larry Finger Signed-off-by: John W. Linville --- drivers/net/wireless/rtlwifi/base.c | 2 +- drivers/net/wireless/rtlwifi/base.h | 2 +- drivers/net/wireless/rtlwifi/pci.c | 2 +- 3 files changed, 3 insertions(+), 3 deletions(-) (limited to 'drivers/net/wireless/rtlwifi') diff --git a/drivers/net/wireless/rtlwifi/base.c b/drivers/net/wireless/rtlwifi/base.c index f4c852c..41f7f12 100644 --- a/drivers/net/wireless/rtlwifi/base.c +++ b/drivers/net/wireless/rtlwifi/base.c @@ -167,7 +167,7 @@ static const u8 tid_to_ac[] = { 0, /* IEEE80211_AC_VO */ }; -u8 rtl_tid_to_ac(struct ieee80211_hw *hw, u8 tid) +u8 rtl_tid_to_ac(u8 tid) { return tid_to_ac[tid]; } diff --git a/drivers/net/wireless/rtlwifi/base.h b/drivers/net/wireless/rtlwifi/base.h index 5a23a6d..f35af0f 100644 --- a/drivers/net/wireless/rtlwifi/base.h +++ b/drivers/net/wireless/rtlwifi/base.h @@ -138,7 +138,7 @@ int rtl_send_smps_action(struct ieee80211_hw *hw, enum ieee80211_smps_mode smps); u8 *rtl_find_ie(u8 *data, unsigned int len, u8 ie); void rtl_recognize_peer(struct ieee80211_hw *hw, u8 *data, unsigned int len); -u8 rtl_tid_to_ac(struct ieee80211_hw *hw, u8 tid); +u8 rtl_tid_to_ac(u8 tid); extern struct attribute_group rtl_attribute_group; int rtlwifi_rate_mapping(struct ieee80211_hw *hw, bool isht, u8 desc_rate, bool first_ampdu); diff --git a/drivers/net/wireless/rtlwifi/pci.c b/drivers/net/wireless/rtlwifi/pci.c index 36bffbc..2c6eb9e 100644 --- a/drivers/net/wireless/rtlwifi/pci.c +++ b/drivers/net/wireless/rtlwifi/pci.c @@ -480,7 +480,7 @@ static void _rtl_pci_tx_chk_waitq(struct ieee80211_hw *hw) /* we juse use em for BE/BK/VI/VO */ for (tid = 7; tid >= 0; tid--) { - u8 hw_queue = ac_to_hwq[rtl_tid_to_ac(hw, tid)]; + u8 hw_queue = ac_to_hwq[rtl_tid_to_ac(tid)]; struct rtl8192_tx_ring *ring = &rtlpci->tx_ring[hw_queue]; while (!mac->act_scanning && rtlpriv->psc.rfpwr_state == ERFON) { -- cgit v1.1 From 3ce4d85b76010525adedcc2555fa164bf706a2f3 Mon Sep 17 00:00:00 2001 From: Larry Finger Date: Wed, 11 Jul 2012 14:37:28 -0500 Subject: rtlwifi: rtl8192cu: Change buffer allocation for synchronous reads In commit a7959c1, the USB part of rtlwifi was switched to convert _usb_read_sync() to using a preallocated buffer rather than one that has been acquired using kmalloc. Although this routine is named as though it were synchronous, there seem to be simultaneous users, and the selection of the index to the data buffer is not multi-user safe. This situation is addressed by adding a new spinlock. The routine cannot sleep, thus a mutex is not allowed. Signed-off-by: Larry Finger Cc: Stable Signed-off-by: John W. Linville --- drivers/net/wireless/rtlwifi/usb.c | 14 +++++++++++--- drivers/net/wireless/rtlwifi/wifi.h | 1 + 2 files changed, 12 insertions(+), 3 deletions(-) (limited to 'drivers/net/wireless/rtlwifi') diff --git a/drivers/net/wireless/rtlwifi/usb.c b/drivers/net/wireless/rtlwifi/usb.c index a6049d7..aa970fc 100644 --- a/drivers/net/wireless/rtlwifi/usb.c +++ b/drivers/net/wireless/rtlwifi/usb.c @@ -131,15 +131,19 @@ static u32 _usb_read_sync(struct rtl_priv *rtlpriv, u32 addr, u16 len) u8 request; u16 wvalue; u16 index; - __le32 *data = &rtlpriv->usb_data[rtlpriv->usb_data_index]; + __le32 *data; + unsigned long flags; + spin_lock_irqsave(&rtlpriv->locks.usb_lock, flags); + if (++rtlpriv->usb_data_index >= RTL_USB_MAX_RX_COUNT) + rtlpriv->usb_data_index = 0; + data = &rtlpriv->usb_data[rtlpriv->usb_data_index]; + spin_unlock_irqrestore(&rtlpriv->locks.usb_lock, flags); request = REALTEK_USB_VENQT_CMD_REQ; index = REALTEK_USB_VENQT_CMD_IDX; /* n/a */ wvalue = (u16)addr; _usbctrl_vendorreq_sync_read(udev, request, wvalue, index, data, len); - if (++rtlpriv->usb_data_index >= RTL_USB_MAX_RX_COUNT) - rtlpriv->usb_data_index = 0; return le32_to_cpu(*data); } @@ -951,6 +955,10 @@ int __devinit rtl_usb_probe(struct usb_interface *intf, GFP_KERNEL); if (!rtlpriv->usb_data) return -ENOMEM; + + /* this spin lock must be initialized early */ + spin_lock_init(&rtlpriv->locks.usb_lock); + rtlpriv->usb_data_index = 0; init_completion(&rtlpriv->firmware_loading_complete); SET_IEEE80211_DEV(hw, &intf->dev); diff --git a/drivers/net/wireless/rtlwifi/wifi.h b/drivers/net/wireless/rtlwifi/wifi.h index bd816ae..cdaa21f 100644 --- a/drivers/net/wireless/rtlwifi/wifi.h +++ b/drivers/net/wireless/rtlwifi/wifi.h @@ -1555,6 +1555,7 @@ struct rtl_locks { spinlock_t rf_ps_lock; spinlock_t rf_lock; spinlock_t waitq_lock; + spinlock_t usb_lock; /*Dual mac*/ spinlock_t cck_and_rw_pagea_lock; -- cgit v1.1 From f1b00f4dab29b57bdf1bc03ef12020b280fd2a72 Mon Sep 17 00:00:00 2001 From: Forest Bond Date: Fri, 13 Jul 2012 12:26:06 -0400 Subject: rtlwifi: rtl8192de: Fix phy-based version calculation Commit d83579e2a50ac68389e6b4c58b845c702cf37516 incorporated some changes from the vendor driver that made it newly important that the calculated hardware version correctly include the CHIP_92D bit, as all of the IS_92D_* macros were changed to depend on it. However, this bit was being unset for dual-mac, dual-phy devices. The vendor driver behavior was modified to not do this, but unfortunately this change was not picked up along with the others. This caused scanning in the 2.4GHz band to be broken, and possibly other bugs as well. This patch brings the version calculation logic in parity with the vendor driver in this regard, and in doing so fixes the regression. However, the version calculation code in general continues to be largely incoherent and messy, and needs to be cleaned up. Signed-off-by: Forest Bond Cc: Stable [v3.2+] Signed-off-by: Larry Finger Signed-off-by: John W. Linville --- drivers/net/wireless/rtlwifi/rtl8192de/phy.c | 6 +++--- 1 file changed, 3 insertions(+), 3 deletions(-) (limited to 'drivers/net/wireless/rtlwifi') diff --git a/drivers/net/wireless/rtlwifi/rtl8192de/phy.c b/drivers/net/wireless/rtlwifi/rtl8192de/phy.c index 18380a7..4420312 100644 --- a/drivers/net/wireless/rtlwifi/rtl8192de/phy.c +++ b/drivers/net/wireless/rtlwifi/rtl8192de/phy.c @@ -3345,21 +3345,21 @@ void rtl92d_phy_config_macphymode_info(struct ieee80211_hw *hw) switch (rtlhal->macphymode) { case DUALMAC_SINGLEPHY: rtlphy->rf_type = RF_2T2R; - rtlhal->version |= CHIP_92D_SINGLEPHY; + rtlhal->version |= RF_TYPE_2T2R; rtlhal->bandset = BAND_ON_BOTH; rtlhal->current_bandtype = BAND_ON_2_4G; break; case SINGLEMAC_SINGLEPHY: rtlphy->rf_type = RF_2T2R; - rtlhal->version |= CHIP_92D_SINGLEPHY; + rtlhal->version |= RF_TYPE_2T2R; rtlhal->bandset = BAND_ON_BOTH; rtlhal->current_bandtype = BAND_ON_2_4G; break; case DUALMAC_DUALPHY: rtlphy->rf_type = RF_1T1R; - rtlhal->version &= (~CHIP_92D_SINGLEPHY); + rtlhal->version &= RF_TYPE_1T1R; /* Now we let MAC0 run on 5G band. */ if (rtlhal->interfaceindex == 0) { rtlhal->bandset = BAND_ON_5G; -- cgit v1.1