rtlwifi: Fix regression caused by commit d86e64768859
authorLarry Finger <Larry.Finger@lwfinger.net>
Wed, 12 Oct 2016 18:54:04 +0000 (13:54 -0500)
committerKalle Valo <kvalo@codeaurora.org>
Thu, 13 Oct 2016 10:22:13 +0000 (13:22 +0300)
In commit d86e64768859 ("rtlwifi: rtl818x: constify local structures"),
the configuration struct for most of the drivers was changed to be
constant. The problem is that five of the modified drivers need to be
able to update the firmware name based on the exact model of the card.
As the file names were stored in one of the members of that struct,
these drivers would fail with a kernel BUG splat when they tried to
update the firmware name.

Rather than reverting the previous commit, I used a suggestion by
Johannes Berg and made the firmware file name pointers be local to
the routines that update the software variables.

The configuration struct of rtl8192cu, which was not touched in the
previous patch, is now constantfied.

Fixes: d86e64768859 ("rtlwifi: rtl818x: constify local structures")
Suggested-by: Johannes Berg <johannes@sipsolutions.net>
Signed-off-by: Larry Finger <Larry.Finger@lwfinger.net>
Cc: Stable <stable@vger.kernel.org> # 4.8
Cc: Julia Lawall <Julia.Lawall@lip6.fr>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
drivers/net/wireless/realtek/rtlwifi/core.c
drivers/net/wireless/realtek/rtlwifi/rtl8188ee/sw.c
drivers/net/wireless/realtek/rtlwifi/rtl8192ce/sw.c
drivers/net/wireless/realtek/rtlwifi/rtl8192cu/sw.c
drivers/net/wireless/realtek/rtlwifi/rtl8192de/sw.c
drivers/net/wireless/realtek/rtlwifi/rtl8192ee/sw.c
drivers/net/wireless/realtek/rtlwifi/rtl8192se/sw.c
drivers/net/wireless/realtek/rtlwifi/rtl8723ae/sw.c
drivers/net/wireless/realtek/rtlwifi/rtl8723be/sw.c
drivers/net/wireless/realtek/rtlwifi/rtl8821ae/sw.c
drivers/net/wireless/realtek/rtlwifi/wifi.h

index f95760c13c56eeee19229c375cc54be371f461bf..8e7f23c11680a5fa98352e5052f02fa9ae091de8 100644 (file)
@@ -111,7 +111,7 @@ static void rtl_fw_do_work(const struct firmware *firmware, void *context,
                        if (!err)
                                goto found_alt;
                }
-               pr_err("Firmware %s not available\n", rtlpriv->cfg->fw_name);
+               pr_err("Selected firmware is not available\n");
                rtlpriv->max_fw_size = 0;
                return;
        }
index e7b11b40e68dc3e4e8925fb8e80551527124f3a5..f361808def47af36272213111413748546783b76 100644 (file)
@@ -86,6 +86,7 @@ int rtl88e_init_sw_vars(struct ieee80211_hw *hw)
        struct rtl_priv *rtlpriv = rtl_priv(hw);
        struct rtl_pci *rtlpci = rtl_pcidev(rtl_pcipriv(hw));
        u8 tid;
+       char *fw_name;
 
        rtl8188ee_bt_reg_init(hw);
        rtlpriv->dm.dm_initialgain_enable = 1;
@@ -169,10 +170,10 @@ int rtl88e_init_sw_vars(struct ieee80211_hw *hw)
                return 1;
        }
 
-       rtlpriv->cfg->fw_name = "rtlwifi/rtl8188efw.bin";
+       fw_name = "rtlwifi/rtl8188efw.bin";
        rtlpriv->max_fw_size = 0x8000;
-       pr_info("Using firmware %s\n", rtlpriv->cfg->fw_name);
-       err = request_firmware_nowait(THIS_MODULE, 1, rtlpriv->cfg->fw_name,
+       pr_info("Using firmware %s\n", fw_name);
+       err = request_firmware_nowait(THIS_MODULE, 1, fw_name,
                                      rtlpriv->io.dev, GFP_KERNEL, hw,
                                      rtl_fw_cb);
        if (err) {
@@ -284,7 +285,6 @@ static const struct rtl_hal_cfg rtl88ee_hal_cfg = {
        .bar_id = 2,
        .write_readback = true,
        .name = "rtl88e_pci",
-       .fw_name = "rtlwifi/rtl8188efw.bin",
        .ops = &rtl8188ee_hal_ops,
        .mod_params = &rtl88ee_mod_params,
 
index 87aa209ae325d46062dd6dea7905eb664ff0a5ea..8b6e37ce3f6690ae499d88bfef81ca2913ecc48f 100644 (file)
@@ -96,6 +96,7 @@ int rtl92c_init_sw_vars(struct ieee80211_hw *hw)
        struct rtl_priv *rtlpriv = rtl_priv(hw);
        struct rtl_pci *rtlpci = rtl_pcidev(rtl_pcipriv(hw));
        struct rtl_hal *rtlhal = rtl_hal(rtl_priv(hw));
+       char *fw_name = "rtlwifi/rtl8192cfwU.bin";
 
        rtl8192ce_bt_reg_init(hw);
 
@@ -167,15 +168,12 @@ int rtl92c_init_sw_vars(struct ieee80211_hw *hw)
        }
 
        /* request fw */
-       if (IS_VENDOR_UMC_A_CUT(rtlhal->version) &&
-           !IS_92C_SERIAL(rtlhal->version))
-               rtlpriv->cfg->fw_name = "rtlwifi/rtl8192cfwU.bin";
-       else if (IS_81XXC_VENDOR_UMC_B_CUT(rtlhal->version))
-               rtlpriv->cfg->fw_name = "rtlwifi/rtl8192cfwU_B.bin";
+       if (IS_81XXC_VENDOR_UMC_B_CUT(rtlhal->version))
+               fw_name = "rtlwifi/rtl8192cfwU_B.bin";
 
        rtlpriv->max_fw_size = 0x4000;
-       pr_info("Using firmware %s\n", rtlpriv->cfg->fw_name);
-       err = request_firmware_nowait(THIS_MODULE, 1, rtlpriv->cfg->fw_name,
+       pr_info("Using firmware %s\n", fw_name);
+       err = request_firmware_nowait(THIS_MODULE, 1, fw_name,
                                      rtlpriv->io.dev, GFP_KERNEL, hw,
                                      rtl_fw_cb);
        if (err) {
@@ -262,7 +260,6 @@ static const struct rtl_hal_cfg rtl92ce_hal_cfg = {
        .bar_id = 2,
        .write_readback = true,
        .name = "rtl92c_pci",
-       .fw_name = "rtlwifi/rtl8192cfw.bin",
        .ops = &rtl8192ce_hal_ops,
        .mod_params = &rtl92ce_mod_params,
 
index 7c6f7f0d18c602011d9048fc54565b105efaf64e..f953320f0e23a86661d141a67fe109f29c09a80c 100644 (file)
@@ -59,6 +59,7 @@ static int rtl92cu_init_sw_vars(struct ieee80211_hw *hw)
 {
        struct rtl_priv *rtlpriv = rtl_priv(hw);
        int err;
+       char *fw_name;
 
        rtlpriv->dm.dm_initialgain_enable = true;
        rtlpriv->dm.dm_flag = 0;
@@ -77,18 +78,18 @@ static int rtl92cu_init_sw_vars(struct ieee80211_hw *hw)
        }
        if (IS_VENDOR_UMC_A_CUT(rtlpriv->rtlhal.version) &&
            !IS_92C_SERIAL(rtlpriv->rtlhal.version)) {
-               rtlpriv->cfg->fw_name = "rtlwifi/rtl8192cufw_A.bin";
+               fw_name = "rtlwifi/rtl8192cufw_A.bin";
        } else if (IS_81XXC_VENDOR_UMC_B_CUT(rtlpriv->rtlhal.version)) {
-               rtlpriv->cfg->fw_name = "rtlwifi/rtl8192cufw_B.bin";
+               fw_name = "rtlwifi/rtl8192cufw_B.bin";
        } else {
-               rtlpriv->cfg->fw_name = "rtlwifi/rtl8192cufw_TMSC.bin";
+               fw_name = "rtlwifi/rtl8192cufw_TMSC.bin";
        }
        /* provide name of alternative file */
        rtlpriv->cfg->alt_fw_name = "rtlwifi/rtl8192cufw.bin";
-       pr_info("Loading firmware %s\n", rtlpriv->cfg->fw_name);
+       pr_info("Loading firmware %s\n", fw_name);
        rtlpriv->max_fw_size = 0x4000;
        err = request_firmware_nowait(THIS_MODULE, 1,
-                                     rtlpriv->cfg->fw_name, rtlpriv->io.dev,
+                                     fw_name, rtlpriv->io.dev,
                                      GFP_KERNEL, hw, rtl_fw_cb);
        return err;
 }
@@ -187,7 +188,6 @@ static struct rtl_hal_usbint_cfg rtl92cu_interface_cfg = {
 
 static struct rtl_hal_cfg rtl92cu_hal_cfg = {
        .name = "rtl92c_usb",
-       .fw_name = "rtlwifi/rtl8192cufw.bin",
        .ops = &rtl8192cu_hal_ops,
        .mod_params = &rtl92cu_mod_params,
        .usb_interface_cfg = &rtl92cu_interface_cfg,
index 0538a4d09568850485e334ebfedf752f5f03ce69..1ebfee18882fb4f1bf8cd31ed303bd98e96542ab 100644 (file)
@@ -92,6 +92,7 @@ static int rtl92d_init_sw_vars(struct ieee80211_hw *hw)
        u8 tid;
        struct rtl_priv *rtlpriv = rtl_priv(hw);
        struct rtl_pci *rtlpci = rtl_pcidev(rtl_pcipriv(hw));
+       char *fw_name = "rtlwifi/rtl8192defw.bin";
 
        rtlpriv->dm.dm_initialgain_enable = true;
        rtlpriv->dm.dm_flag = 0;
@@ -181,10 +182,10 @@ static int rtl92d_init_sw_vars(struct ieee80211_hw *hw)
 
        rtlpriv->max_fw_size = 0x8000;
        pr_info("Driver for Realtek RTL8192DE WLAN interface\n");
-       pr_info("Loading firmware file %s\n", rtlpriv->cfg->fw_name);
+       pr_info("Loading firmware file %s\n", fw_name);
 
        /* request fw */
-       err = request_firmware_nowait(THIS_MODULE, 1, rtlpriv->cfg->fw_name,
+       err = request_firmware_nowait(THIS_MODULE, 1, fw_name,
                                      rtlpriv->io.dev, GFP_KERNEL, hw,
                                      rtl_fw_cb);
        if (err) {
@@ -266,7 +267,6 @@ static const struct rtl_hal_cfg rtl92de_hal_cfg = {
        .bar_id = 2,
        .write_readback = true,
        .name = "rtl8192de",
-       .fw_name = "rtlwifi/rtl8192defw.bin",
        .ops = &rtl8192de_hal_ops,
        .mod_params = &rtl92de_mod_params,
 
index ac299cbe59b0daa7a44cfebc6b2c57bc3a616ad1..46b605de36e722301bf1decb7602ec11c3314739 100644 (file)
@@ -91,6 +91,7 @@ int rtl92ee_init_sw_vars(struct ieee80211_hw *hw)
        struct rtl_priv *rtlpriv = rtl_priv(hw);
        struct rtl_pci *rtlpci = rtl_pcidev(rtl_pcipriv(hw));
        int err = 0;
+       char *fw_name;
 
        rtl92ee_bt_reg_init(hw);
        rtlpci->msi_support = rtlpriv->cfg->mod_params->msi_support;
@@ -170,11 +171,11 @@ int rtl92ee_init_sw_vars(struct ieee80211_hw *hw)
        }
 
        /* request fw */
-       rtlpriv->cfg->fw_name = "rtlwifi/rtl8192eefw.bin";
+       fw_name = "rtlwifi/rtl8192eefw.bin";
 
        rtlpriv->max_fw_size = 0x8000;
-       pr_info("Using firmware %s\n", rtlpriv->cfg->fw_name);
-       err = request_firmware_nowait(THIS_MODULE, 1, rtlpriv->cfg->fw_name,
+       pr_info("Using firmware %s\n", fw_name);
+       err = request_firmware_nowait(THIS_MODULE, 1, fw_name,
                                      rtlpriv->io.dev, GFP_KERNEL, hw,
                                      rtl_fw_cb);
        if (err) {
@@ -266,7 +267,6 @@ static const struct rtl_hal_cfg rtl92ee_hal_cfg = {
        .bar_id = 2,
        .write_readback = true,
        .name = "rtl92ee_pci",
-       .fw_name = "rtlwifi/rtl8192eefw.bin",
        .ops = &rtl8192ee_hal_ops,
        .mod_params = &rtl92ee_mod_params,
 
index 5e8e02d5de8aaf50e140f170acc0597042dfa8bb..3e1eaeac4fdce859cb853b5d820ae5075aa83b8a 100644 (file)
@@ -89,12 +89,13 @@ static void rtl92se_fw_cb(const struct firmware *firmware, void *context)
        struct ieee80211_hw *hw = context;
        struct rtl_priv *rtlpriv = rtl_priv(hw);
        struct rt_firmware *pfirmware = NULL;
+       char *fw_name = "rtlwifi/rtl8192sefw.bin";
 
        RT_TRACE(rtlpriv, COMP_ERR, DBG_LOUD,
                         "Firmware callback routine entered!\n");
        complete(&rtlpriv->firmware_loading_complete);
        if (!firmware) {
-               pr_err("Firmware %s not available\n", rtlpriv->cfg->fw_name);
+               pr_err("Firmware %s not available\n", fw_name);
                rtlpriv->max_fw_size = 0;
                return;
        }
@@ -117,6 +118,7 @@ static int rtl92s_init_sw_vars(struct ieee80211_hw *hw)
        struct rtl_pci *rtlpci = rtl_pcidev(rtl_pcipriv(hw));
        int err = 0;
        u16 earlyrxthreshold = 7;
+       char *fw_name = "rtlwifi/rtl8192sefw.bin";
 
        rtlpriv->dm.dm_initialgain_enable = true;
        rtlpriv->dm.dm_flag = 0;
@@ -214,9 +216,9 @@ static int rtl92s_init_sw_vars(struct ieee80211_hw *hw)
        rtlpriv->max_fw_size = RTL8190_MAX_FIRMWARE_CODE_SIZE*2 +
                               sizeof(struct fw_hdr);
        pr_info("Driver for Realtek RTL8192SE/RTL8191SE\n"
-               "Loading firmware %s\n", rtlpriv->cfg->fw_name);
+               "Loading firmware %s\n", fw_name);
        /* request fw */
-       err = request_firmware_nowait(THIS_MODULE, 1, rtlpriv->cfg->fw_name,
+       err = request_firmware_nowait(THIS_MODULE, 1, fw_name,
                                      rtlpriv->io.dev, GFP_KERNEL, hw,
                                      rtl92se_fw_cb);
        if (err) {
@@ -310,7 +312,6 @@ static const struct rtl_hal_cfg rtl92se_hal_cfg = {
        .bar_id = 1,
        .write_readback = false,
        .name = "rtl92s_pci",
-       .fw_name = "rtlwifi/rtl8192sefw.bin",
        .ops = &rtl8192se_hal_ops,
        .mod_params = &rtl92se_mod_params,
 
index 89c828ad89f4230186be72e1cc640b4cf2b3309a..c51a9e8234e92417877537e3ce5d566a120e2bd1 100644 (file)
@@ -94,6 +94,7 @@ int rtl8723e_init_sw_vars(struct ieee80211_hw *hw)
        struct rtl_pci *rtlpci = rtl_pcidev(rtl_pcipriv(hw));
        struct rtl_hal *rtlhal = rtl_hal(rtl_priv(hw));
        int err = 0;
+       char *fw_name = "rtlwifi/rtl8723fw.bin";
 
        rtl8723e_bt_reg_init(hw);
 
@@ -176,14 +177,12 @@ int rtl8723e_init_sw_vars(struct ieee80211_hw *hw)
                return 1;
        }
 
-       if (IS_VENDOR_8723_A_CUT(rtlhal->version))
-               rtlpriv->cfg->fw_name = "rtlwifi/rtl8723fw.bin";
-       else if (IS_81xxC_VENDOR_UMC_B_CUT(rtlhal->version))
-               rtlpriv->cfg->fw_name = "rtlwifi/rtl8723fw_B.bin";
+       if (IS_81xxC_VENDOR_UMC_B_CUT(rtlhal->version))
+               fw_name = "rtlwifi/rtl8723fw_B.bin";
 
        rtlpriv->max_fw_size = 0x6000;
-       pr_info("Using firmware %s\n", rtlpriv->cfg->fw_name);
-       err = request_firmware_nowait(THIS_MODULE, 1, rtlpriv->cfg->fw_name,
+       pr_info("Using firmware %s\n", fw_name);
+       err = request_firmware_nowait(THIS_MODULE, 1, fw_name,
                                      rtlpriv->io.dev, GFP_KERNEL, hw,
                                      rtl_fw_cb);
        if (err) {
@@ -280,7 +279,6 @@ static const struct rtl_hal_cfg rtl8723e_hal_cfg = {
        .bar_id = 2,
        .write_readback = true,
        .name = "rtl8723e_pci",
-       .fw_name = "rtlwifi/rtl8723efw.bin",
        .ops = &rtl8723e_hal_ops,
        .mod_params = &rtl8723e_mod_params,
        .maps[SYS_ISO_CTRL] = REG_SYS_ISO_CTRL,
index 20b53f035483a0f2dfc63b2e3d65c60d0e669317..847644d1f5f539ff984efb77131b57575df45b7d 100644 (file)
@@ -91,6 +91,7 @@ int rtl8723be_init_sw_vars(struct ieee80211_hw *hw)
        struct rtl_priv *rtlpriv = rtl_priv(hw);
        struct rtl_pci *rtlpci = rtl_pcidev(rtl_pcipriv(hw));
        struct rtl_mac *mac = rtl_mac(rtl_priv(hw));
+       char *fw_name = "rtlwifi/rtl8723befw.bin";
 
        rtl8723be_bt_reg_init(hw);
        rtlpriv->btcoexist.btc_ops = rtl_btc_get_ops_pointer();
@@ -184,8 +185,8 @@ int rtl8723be_init_sw_vars(struct ieee80211_hw *hw)
        }
 
        rtlpriv->max_fw_size = 0x8000;
-       pr_info("Using firmware %s\n", rtlpriv->cfg->fw_name);
-       err = request_firmware_nowait(THIS_MODULE, 1, rtlpriv->cfg->fw_name,
+       pr_info("Using firmware %s\n", fw_name);
+       err = request_firmware_nowait(THIS_MODULE, 1, fw_name,
                                      rtlpriv->io.dev, GFP_KERNEL, hw,
                                      rtl_fw_cb);
        if (err) {
@@ -280,7 +281,6 @@ static const struct rtl_hal_cfg rtl8723be_hal_cfg = {
        .bar_id = 2,
        .write_readback = true,
        .name = "rtl8723be_pci",
-       .fw_name = "rtlwifi/rtl8723befw.bin",
        .ops = &rtl8723be_hal_ops,
        .mod_params = &rtl8723be_mod_params,
        .maps[SYS_ISO_CTRL] = REG_SYS_ISO_CTRL,
index 22f687b1f1334cfb7732add791861bc465d1465d..297938e0effd54c47bcc0ff27ea5c5c1552ceb52 100644 (file)
@@ -93,6 +93,7 @@ int rtl8821ae_init_sw_vars(struct ieee80211_hw *hw)
        struct rtl_pci *rtlpci = rtl_pcidev(rtl_pcipriv(hw));
        struct rtl_mac *mac = rtl_mac(rtl_priv(hw));
        struct rtl_hal *rtlhal = rtl_hal(rtl_priv(hw));
+       char *fw_name, *wowlan_fw_name;
 
        rtl8821ae_bt_reg_init(hw);
        rtlpriv->btcoexist.btc_ops = rtl_btc_get_ops_pointer();
@@ -203,17 +204,17 @@ int rtl8821ae_init_sw_vars(struct ieee80211_hw *hw)
        }
 
        if (rtlhal->hw_type == HARDWARE_TYPE_RTL8812AE) {
-               rtlpriv->cfg->fw_name = "rtlwifi/rtl8812aefw.bin";
-               rtlpriv->cfg->wowlan_fw_name = "rtlwifi/rtl8812aefw_wowlan.bin";
+               fw_name = "rtlwifi/rtl8812aefw.bin";
+               wowlan_fw_name = "rtlwifi/rtl8812aefw_wowlan.bin";
        } else {
-               rtlpriv->cfg->fw_name = "rtlwifi/rtl8821aefw.bin";
-               rtlpriv->cfg->wowlan_fw_name = "rtlwifi/rtl8821aefw_wowlan.bin";
+               fw_name = "rtlwifi/rtl8821aefw.bin";
+               wowlan_fw_name = "rtlwifi/rtl8821aefw_wowlan.bin";
        }
 
        rtlpriv->max_fw_size = 0x8000;
        /*load normal firmware*/
-       pr_info("Using firmware %s\n", rtlpriv->cfg->fw_name);
-       err = request_firmware_nowait(THIS_MODULE, 1, rtlpriv->cfg->fw_name,
+       pr_info("Using firmware %s\n", fw_name);
+       err = request_firmware_nowait(THIS_MODULE, 1, fw_name,
                                      rtlpriv->io.dev, GFP_KERNEL, hw,
                                      rtl_fw_cb);
        if (err) {
@@ -222,9 +223,9 @@ int rtl8821ae_init_sw_vars(struct ieee80211_hw *hw)
                return 1;
        }
        /*load wowlan firmware*/
-       pr_info("Using firmware %s\n", rtlpriv->cfg->wowlan_fw_name);
+       pr_info("Using firmware %s\n", wowlan_fw_name);
        err = request_firmware_nowait(THIS_MODULE, 1,
-                                     rtlpriv->cfg->wowlan_fw_name,
+                                     wowlan_fw_name,
                                      rtlpriv->io.dev, GFP_KERNEL, hw,
                                      rtl_wowlan_fw_cb);
        if (err) {
@@ -320,7 +321,6 @@ static const struct rtl_hal_cfg rtl8821ae_hal_cfg = {
        .bar_id = 2,
        .write_readback = true,
        .name = "rtl8821ae_pci",
-       .fw_name = "rtlwifi/rtl8821aefw.bin",
        .ops = &rtl8821ae_hal_ops,
        .mod_params = &rtl8821ae_mod_params,
        .maps[SYS_ISO_CTRL] = REG_SYS_ISO_CTRL,
index 595f7d5d091afcfa1a092b4662d9d56731291cbb..dafe486f844867a1f96637af5fff774bf3ee3afd 100644 (file)
@@ -2278,9 +2278,7 @@ struct rtl_hal_cfg {
        u8 bar_id;
        bool write_readback;
        char *name;
-       char *fw_name;
        char *alt_fw_name;
-       char *wowlan_fw_name;
        struct rtl_hal_ops *ops;
        struct rtl_mod_params *mod_params;
        struct rtl_hal_usbint_cfg *usb_interface_cfg;