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Fri, 16 Apr 2021 16:06:04 +0800 From: Hayes Wang To: , CC: , , , , Hayes Wang Subject: [PATCH net-next 6/6] r8152: search the configuration of vendor mode Date: Fri, 16 Apr 2021 16:04:37 +0800 Message-ID: <1394712342-15778-356-Taiwan-albertk@realtek.com> X-Mailer: Microsoft Office Outlook 11 In-Reply-To: <1394712342-15778-350-Taiwan-albertk@realtek.com> References: <1394712342-15778-350-Taiwan-albertk@realtek.com> MIME-Version: 1.0 X-Originating-IP: [172.21.177.102] X-ClientProxiedBy: RTEXMBS01.realtek.com.tw (172.21.6.94) To RTEXMBS04.realtek.com.tw (172.21.6.97) X-KSE-ServerInfo: RTEXMBS04.realtek.com.tw, 9 X-KSE-Antivirus-Interceptor-Info: scan successful X-KSE-Antivirus-Info: =?big5_tw?b?Q2xlYW4sIGJhc2VzOiAyMDIxLzQvMTYgpFekyCAwNjow?= =?big5_tw?b?MDowMA==?= X-KSE-Attachment-Filter-Triggered-Rules: Clean X-KSE-Attachment-Filter-Triggered-Filters: Clean X-KSE-BulkMessagesFiltering-Scan-Result: protection disabled X-KSE-AntiSpam-Outbound-Interceptor-Info: scan successful X-KSE-AntiSpam-Version: 5.9.20, Database issued on: 04/16/2021 07:42:45 X-KSE-AntiSpam-Status: KAS_STATUS_NOT_DETECTED X-KSE-AntiSpam-Method: none X-KSE-AntiSpam-Rate: 0 X-KSE-AntiSpam-Info: Lua profiles 163158 [Apr 16 2021] X-KSE-AntiSpam-Info: Version: 5.9.20.0 X-KSE-AntiSpam-Info: Envelope from: hayeswang@realtek.com X-KSE-AntiSpam-Info: LuaCore: 442 442 b985cb57763b61d2a20abb585d5d4cc10c315b09 X-KSE-AntiSpam-Info: {Tracking_from_domain_doesnt_match_to} X-KSE-AntiSpam-Info: realtek.com:7.1.1;d41d8cd98f00b204e9800998ecf8427e.com:7.1.1;127.0.0.199:7.1.2 X-KSE-AntiSpam-Info: {Track_Chinese_Simplified, headers_charset} X-KSE-AntiSpam-Info: Rate: 0 X-KSE-AntiSpam-Info: Status: not_detected X-KSE-AntiSpam-Info: Method: none X-KSE-AntiSpam-Info: Auth:dkim=none X-KSE-Antiphishing-Info: Clean X-KSE-Antiphishing-ScanningType: Heuristic X-KSE-Antiphishing-Method: None X-KSE-Antiphishing-Bases: 04/16/2021 07:45:00 X-KSE-ServerInfo: RTEXH36502.realtek.com.tw, 9 X-KSE-Antivirus-Interceptor-Info: scan successful X-KSE-Antivirus-Info: =?big5_tw?b?Q2xlYW4sIGJhc2VzOiAyMDIxLzQvMTYgpFekyCAwNjoz?= =?big5_tw?b?ODowMA==?= X-KSE-Attachment-Filter-Triggered-Rules: Clean X-KSE-Attachment-Filter-Triggered-Filters: Clean X-KSE-BulkMessagesFiltering-Scan-Result: protection disabled X-KSE-AntiSpam-Outbound-Interceptor-Info: scan successful X-KSE-AntiSpam-Version: 5.9.20, Database issued on: 04/16/2021 07:46:47 X-KSE-AntiSpam-Status: KAS_STATUS_NOT_DETECTED X-KSE-AntiSpam-Method: none X-KSE-AntiSpam-Rate: 0 X-KSE-AntiSpam-Info: Lua profiles 163158 [Apr 16 2021] X-KSE-AntiSpam-Info: Version: 5.9.20.0 X-KSE-AntiSpam-Info: Envelope from: hayeswang@realtek.com X-KSE-AntiSpam-Info: LuaCore: 442 442 b985cb57763b61d2a20abb585d5d4cc10c315b09 X-KSE-AntiSpam-Info: {Tracking_from_domain_doesnt_match_to} X-KSE-AntiSpam-Info: realtek.com:7.1.1;127.0.0.199:7.1.2;d41d8cd98f00b204e9800998ecf8427e.com:7.1.1 X-KSE-AntiSpam-Info: {Track_Chinese_Simplified, headers_charset} X-KSE-AntiSpam-Info: Rate: 0 X-KSE-AntiSpam-Info: Status: not_detected X-KSE-AntiSpam-Info: Method: none X-KSE-AntiSpam-Info: Auth:dkim=none X-KSE-Antiphishing-Info: Clean X-KSE-Antiphishing-ScanningType: Heuristic X-KSE-Antiphishing-Method: None X-KSE-Antiphishing-Bases: 04/16/2021 07:50:00 Precedence: bulk List-ID: X-Mailing-List: netdev@vger.kernel.org Message-ID: <20210416080437.tUQmdAuT5siG_YTEGbg0tJOo-NUQElOZeHliZX095Tg@z> X-Patchwork-Delegate: kuba@kernel.org The vendor mode is not always at config #1, so it is necessary to set the correct configuration number. Signed-off-by: Hayes Wang --- drivers/net/usb/r8152.c | 39 +++++++++++++++++++++++++++++++++++---- 1 file changed, 35 insertions(+), 4 deletions(-) diff --git a/drivers/net/usb/r8152.c b/drivers/net/usb/r8152.c index 34c1ee61af01..9119a860e9bd 100644 --- a/drivers/net/usb/r8152.c +++ b/drivers/net/usb/r8152.c @@ -29,7 +29,7 @@ #include /* Information for net-next */ -#define NETNEXT_VERSION "11" +#define NETNEXT_VERSION "12" /* Information for net */ #define NET_VERSION "11" @@ -8107,6 +8107,39 @@ static void r8156b_init(struct r8152 *tp) tp->coalesce = 15000; /* 15 us */ } +static bool rtl_vendor_mode(struct usb_interface *intf) +{ + struct usb_host_interface *alt = intf->cur_altsetting; + struct usb_device *udev; + struct usb_host_config *c; + int i, num_configs; + + if (alt->desc.bInterfaceClass == USB_CLASS_VENDOR_SPEC) + return true; + + /* The vendor mode is not always config #1, so to find it out. */ + udev = interface_to_usbdev(intf); + c = udev->config; + num_configs = udev->descriptor.bNumConfigurations; + for (i = 0; i < num_configs; (i++, c++)) { + struct usb_interface_descriptor *desc = NULL; + + if (c->desc.bNumInterfaces > 0) + desc = &c->intf_cache[0]->altsetting->desc; + else + continue; + + if (desc->bInterfaceClass == USB_CLASS_VENDOR_SPEC) { + usb_driver_set_configuration(udev, c->desc.bConfigurationValue); + break; + } + } + + WARN_ON_ONCE(i == num_configs); + + return false; +} + static int rtl8152_pre_reset(struct usb_interface *intf) { struct r8152 *tp = usb_get_intfdata(intf); @@ -9345,10 +9378,8 @@ static int rtl8152_probe(struct usb_interface *intf, if (version == RTL_VER_UNKNOWN) return -ENODEV; - if (udev->actconfig->desc.bConfigurationValue != 1) { - usb_driver_set_configuration(udev, 1); + if (!rtl_vendor_mode(intf)) return -ENODEV; - } if (intf->cur_altsetting->desc.bNumEndpoints < 3) return -ENODEV;