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Date: Mon, 13 Feb 2017 05:03:48 -0800 From: Greg Kroah-Hartman <gregkh@...uxfoundation.org> To: linux-kernel@...r.kernel.org Cc: Greg Kroah-Hartman <gregkh@...uxfoundation.org>, stable@...r.kernel.org, Jurij Smakov <jurij@...yd.org>, Larry Finger <Larry.Finger@...inger.net>, Kalle Valo <kvalo@...eaurora.org> Subject: [PATCH 4.9 16/60] rtlwifi: rtl8192ce: Fix loading of incorrect firmware 4.9-stable review patch. If anyone has any objections, please let me know. ------------------ From: Jurij Smakov <jurij@...yd.org> commit 52f5631a4c056ad01682393be56d2be237e81610 upstream. In commit cf4747d7535a ("rtlwifi: Fix regression caused by commit d86e64768859, an error in the edit results in the wrong firmware being loaded for some models of the RTL8188/8192CE. In this condition, the connection suffered from high ping latency, slow transfer rates, and required higher signal strengths to work at all See https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=853073, https://bugzilla.opensuse.org/show_bug.cgi?id=1017471, and https://github.com/lwfinger/rtlwifi_new/issues/203 for descriptions of the problems. This patch fixes all of those problems. Fixes: cf4747d7535a ("rtlwifi: Fix regression caused by commit d86e64768859") Signed-off-by: Jurij Smakov <jurij@...yd.org> Signed-off-by: Larry Finger <Larry.Finger@...inger.net> Signed-off-by: Kalle Valo <kvalo@...eaurora.org> Signed-off-by: Greg Kroah-Hartman <gregkh@...uxfoundation.org> --- drivers/net/wireless/realtek/rtlwifi/rtl8192ce/sw.c | 9 +++++++-- 1 file changed, 7 insertions(+), 2 deletions(-) --- a/drivers/net/wireless/realtek/rtlwifi/rtl8192ce/sw.c +++ b/drivers/net/wireless/realtek/rtlwifi/rtl8192ce/sw.c @@ -96,7 +96,7 @@ int rtl92c_init_sw_vars(struct ieee80211 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"; + char *fw_name; rtl8192ce_bt_reg_init(hw); @@ -168,8 +168,13 @@ int rtl92c_init_sw_vars(struct ieee80211 } /* request fw */ - if (IS_81XXC_VENDOR_UMC_B_CUT(rtlhal->version)) + if (IS_VENDOR_UMC_A_CUT(rtlhal->version) && + !IS_92C_SERIAL(rtlhal->version)) + fw_name = "rtlwifi/rtl8192cfwU.bin"; + else if (IS_81XXC_VENDOR_UMC_B_CUT(rtlhal->version)) fw_name = "rtlwifi/rtl8192cfwU_B.bin"; + else + fw_name = "rtlwifi/rtl8192cfw.bin"; rtlpriv->max_fw_size = 0x4000; pr_info("Using firmware %s\n", fw_name);
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