Hi frank, Thank you for the patch! Yet something to improve: [auto build test ERROR on lee-mfd/for-mfd-next] [also build test ERROR on brgl/gpio/for-next wsa/i2c/for-next linus/master v5.19-rc2 next-20220615] [If your patch is applied to the wrong git tree, kindly drop us a note. And when submitting patch, we suggest to use '--base' as documented in https://git-scm.com/docs/git-format-patch] url: https://github.com/intel-lab-lkp/linux/commits/frank-zago/add-driver-for-the-WCH-CH341-in-I2C-GPIO-mode/20220616-094113 base: https://git.kernel.org/pub/scm/linux/kernel/git/lee/mfd.git for-mfd-next config: nios2-randconfig-r026-20220616 (https://download.01.org/0day-ci/archive/20220616/202206161751.5icAiwNf-lkp@xxxxxxxxx/config) compiler: nios2-linux-gcc (GCC) 11.3.0 reproduce (this is a W=1 build): wget https://raw.githubusercontent.com/intel/lkp-tests/master/sbin/make.cross -O ~/bin/make.cross chmod +x ~/bin/make.cross # https://github.com/intel-lab-lkp/linux/commit/46c68aee86d34ee630272146a73ad7c3147bb094 git remote add linux-review https://github.com/intel-lab-lkp/linux git fetch --no-tags linux-review frank-zago/add-driver-for-the-WCH-CH341-in-I2C-GPIO-mode/20220616-094113 git checkout 46c68aee86d34ee630272146a73ad7c3147bb094 # save the config file mkdir build_dir && cp config build_dir/.config COMPILER_INSTALL_PATH=$HOME/0day COMPILER=gcc-11.3.0 make.cross W=1 O=build_dir ARCH=nios2 SHELL=/bin/bash If you fix the issue, kindly add following tag where applicable Reported-by: kernel test robot <lkp@xxxxxxxxx> All errors (new ones prefixed by >>): nios2-linux-ld: drivers/mfd/ch341-core.o: in function `ch341_usb_probe': >> drivers/mfd/ch341-core.c:46: undefined reference to `usb_find_common_endpoints' drivers/mfd/ch341-core.c:46:(.text+0x8c): relocation truncated to fit: R_NIOS2_CALL26 against `usb_find_common_endpoints' nios2-linux-ld: drivers/mfd/ch341-core.o: in function `ch341_usb_driver_init': >> drivers/mfd/ch341-core.c:86: undefined reference to `usb_register_driver' drivers/mfd/ch341-core.c:86:(.init.text+0x1c): relocation truncated to fit: R_NIOS2_CALL26 against `usb_register_driver' nios2-linux-ld: drivers/i2c/busses/i2c-ch341.o: in function `no_data_xfer': >> drivers/i2c/busses/i2c-ch341.c:81: undefined reference to `usb_bulk_msg' drivers/i2c/busses/i2c-ch341.c:81:(.text+0xe0): relocation truncated to fit: R_NIOS2_CALL26 against `usb_bulk_msg' >> nios2-linux-ld: drivers/i2c/busses/i2c-ch341.c:89: undefined reference to `usb_bulk_msg' drivers/i2c/busses/i2c-ch341.c:89:(.text+0x134): relocation truncated to fit: R_NIOS2_CALL26 against `usb_bulk_msg' nios2-linux-ld: drivers/i2c/busses/i2c-ch341.o: in function `ch341_i2c_xfer': drivers/i2c/busses/i2c-ch341.c:278: undefined reference to `usb_bulk_msg' drivers/i2c/busses/i2c-ch341.c:278:(.text+0x4e0): relocation truncated to fit: R_NIOS2_CALL26 against `usb_bulk_msg' nios2-linux-ld: drivers/i2c/busses/i2c-ch341.c:290: undefined reference to `usb_bulk_msg' drivers/i2c/busses/i2c-ch341.c:290:(.text+0x558): relocation truncated to fit: R_NIOS2_CALL26 against `usb_bulk_msg' nios2-linux-ld: drivers/i2c/busses/i2c-ch341.o: in function `ch341_i2c_probe': drivers/i2c/busses/i2c-ch341.c:357: undefined reference to `usb_bulk_msg' drivers/i2c/busses/i2c-ch341.c:357:(.text+0x778): relocation truncated to fit: R_NIOS2_CALL26 against `usb_bulk_msg' pahole: .tmp_vmlinux.btf: No such file or directory .btf.vmlinux.bin.o: file not recognized: file format not recognized Kconfig warnings: (for reference only) WARNING: unmet direct dependencies detected for MFD_CH341 Depends on HAS_IOMEM && USB Selected by - I2C_CH341 && I2C && HAS_IOMEM vim +46 drivers/mfd/ch341-core.c f33ee28d4d85a8 frank zago 2022-06-15 29 f33ee28d4d85a8 frank zago 2022-06-15 30 static int ch341_usb_probe(struct usb_interface *iface, f33ee28d4d85a8 frank zago 2022-06-15 31 const struct usb_device_id *usb_id) f33ee28d4d85a8 frank zago 2022-06-15 32 { f33ee28d4d85a8 frank zago 2022-06-15 33 struct usb_endpoint_descriptor *bulk_out; f33ee28d4d85a8 frank zago 2022-06-15 34 struct usb_endpoint_descriptor *bulk_in; f33ee28d4d85a8 frank zago 2022-06-15 35 struct usb_endpoint_descriptor *intr_in; f33ee28d4d85a8 frank zago 2022-06-15 36 struct ch341_ddata *ddata; f33ee28d4d85a8 frank zago 2022-06-15 37 int ret; f33ee28d4d85a8 frank zago 2022-06-15 38 f33ee28d4d85a8 frank zago 2022-06-15 39 ddata = devm_kzalloc(&iface->dev, sizeof(*ddata), GFP_KERNEL); f33ee28d4d85a8 frank zago 2022-06-15 40 if (!ddata) f33ee28d4d85a8 frank zago 2022-06-15 41 return -ENOMEM; f33ee28d4d85a8 frank zago 2022-06-15 42 f33ee28d4d85a8 frank zago 2022-06-15 43 ddata->usb_dev = interface_to_usbdev(iface); f33ee28d4d85a8 frank zago 2022-06-15 44 mutex_init(&ddata->usb_lock); f33ee28d4d85a8 frank zago 2022-06-15 45 f33ee28d4d85a8 frank zago 2022-06-15 @46 ret = usb_find_common_endpoints(iface->cur_altsetting, &bulk_in, f33ee28d4d85a8 frank zago 2022-06-15 47 &bulk_out, &intr_in, NULL); f33ee28d4d85a8 frank zago 2022-06-15 48 if (ret) { f33ee28d4d85a8 frank zago 2022-06-15 49 dev_err(&iface->dev, "Could not find all endpoints\n"); f33ee28d4d85a8 frank zago 2022-06-15 50 return -ENODEV; f33ee28d4d85a8 frank zago 2022-06-15 51 } f33ee28d4d85a8 frank zago 2022-06-15 52 f33ee28d4d85a8 frank zago 2022-06-15 53 ddata->ep_in = bulk_in->bEndpointAddress; f33ee28d4d85a8 frank zago 2022-06-15 54 ddata->ep_out = bulk_out->bEndpointAddress; f33ee28d4d85a8 frank zago 2022-06-15 55 ddata->ep_intr = intr_in->bEndpointAddress; f33ee28d4d85a8 frank zago 2022-06-15 56 ddata->ep_intr_interval = intr_in->bInterval; f33ee28d4d85a8 frank zago 2022-06-15 57 f33ee28d4d85a8 frank zago 2022-06-15 58 usb_set_intfdata(iface, ddata); f33ee28d4d85a8 frank zago 2022-06-15 59 f33ee28d4d85a8 frank zago 2022-06-15 60 ret = mfd_add_devices(&iface->dev, PLATFORM_DEVID_AUTO, ch341_devs, f33ee28d4d85a8 frank zago 2022-06-15 61 ARRAY_SIZE(ch341_devs), NULL, 0, NULL); f33ee28d4d85a8 frank zago 2022-06-15 62 if (ret) f33ee28d4d85a8 frank zago 2022-06-15 63 return dev_err_probe(&iface->dev, ret, f33ee28d4d85a8 frank zago 2022-06-15 64 "Failed to register child devices\n"); f33ee28d4d85a8 frank zago 2022-06-15 65 f33ee28d4d85a8 frank zago 2022-06-15 66 return 0; f33ee28d4d85a8 frank zago 2022-06-15 67 } f33ee28d4d85a8 frank zago 2022-06-15 68 f33ee28d4d85a8 frank zago 2022-06-15 69 static void ch341_usb_disconnect(struct usb_interface *usb_if) f33ee28d4d85a8 frank zago 2022-06-15 70 { f33ee28d4d85a8 frank zago 2022-06-15 71 mfd_remove_devices(&usb_if->dev); f33ee28d4d85a8 frank zago 2022-06-15 72 } f33ee28d4d85a8 frank zago 2022-06-15 73 f33ee28d4d85a8 frank zago 2022-06-15 74 static const struct usb_device_id ch341_usb_table[] = { f33ee28d4d85a8 frank zago 2022-06-15 75 { USB_DEVICE(0x1a86, 0x5512) }, f33ee28d4d85a8 frank zago 2022-06-15 76 { } f33ee28d4d85a8 frank zago 2022-06-15 77 }; f33ee28d4d85a8 frank zago 2022-06-15 78 MODULE_DEVICE_TABLE(usb, ch341_usb_table); f33ee28d4d85a8 frank zago 2022-06-15 79 f33ee28d4d85a8 frank zago 2022-06-15 80 static struct usb_driver ch341_usb_driver = { f33ee28d4d85a8 frank zago 2022-06-15 81 .name = "ch341-mfd", f33ee28d4d85a8 frank zago 2022-06-15 82 .id_table = ch341_usb_table, f33ee28d4d85a8 frank zago 2022-06-15 83 .probe = ch341_usb_probe, f33ee28d4d85a8 frank zago 2022-06-15 84 .disconnect = ch341_usb_disconnect, f33ee28d4d85a8 frank zago 2022-06-15 85 }; f33ee28d4d85a8 frank zago 2022-06-15 @86 module_usb_driver(ch341_usb_driver); f33ee28d4d85a8 frank zago 2022-06-15 87 -- 0-DAY CI Kernel Test Service https://01.org/lkp
