Re: PROBLEM: No static MAC address for usb gadget ethernet via kernel parameter any more.

[Maximilian Senftleben <kernel@mail.msdigital.de>]

Yes, the system is using systemd and your proposed workaround works. 
Thank you for explaining.


Am 22.05.2022 um 22:17 schrieb Marian Postevca:
> Maximilian Senftleben <kernel@mail.msdigital.de> writes:
> 
>> - During debugging and testing we noticed that while
>> "dev_set_mac_address" used to set "addr_assign_type" to NET_ADDR_SET,
>> the mentioned commit directly sets "addr_assign_type" to NET_ADDR_RANDOM
>> and the called "eth_hw_addr_set" does not modify the type afterwards.
>> If I change line 874 "net->addr_assign_type = NET_ADDR_RANDOM;" to
>> "net->addr_assign_type = NET_ADDR_SET;" then the issue seems to be solved.
> 
> Are you using systemd on the system where this issue is visible?
> I managed to reproduce it only on systemd-systems.
> It seems that systemd, by default, will try to give a persistent
> MAC address to ethernet interfaces that have a random MAC address.
> 
> That is why "net->addr_assign_type = NET_ADDR_SET" fixes the issue,
> systemd sees that the interface doesn't have a random MAC address and
> leaves the one set by the kernel(in your case the one set on the command
> line), but if it sees that the interface has a random MAC address it
> will change the address from the one supplied on the command line, to
> some internal MAC address that systemd generated.
> 
> If you are using systemd you can workaround this issue with the
> following systemd link file:
> 
> [Match]
> OriginalName=usb*
> 
> [Link]
> MACAddressPolicy=none
> 
> You can put the file in /etc/systemd/network/90-bridge.link
> And then reboot the system.
> 
> I will send a patch that fixes this issue completely. But in the
> meantime please let me know if the workaround solves the issue for you.
>>
>> - Regarding bootargs and defconfig, we encountered the issue with our
>> custom board and some own/modified drivers and additional patches, which
>> might make it difficult to reproduce the issue outside of our setup.
>>
>> bootargs:
>> "root=ubi0:userspace0 ubi.mtd=ubi_volumes rootfstype=ubifs
>> consoleblank=0 vt.global_cursor_default=0 console=ttyS0
>> g_ether.dev_addr=46:A2:73:A9:44:56 g_ether.host_addr=46:A2:73:A9:44:55"
>>
>> defconfig:
>>
>> CONFIG_KERNEL_XZ=y
>> CONFIG_SYSVIPC=y
>> CONFIG_NO_HZ=y
>> CONFIG_HIGH_RES_TIMERS=y
>> CONFIG_PREEMPT_VOLUNTARY=y
>> CONFIG_IKCONFIG=y
>> CONFIG_IKCONFIG_PROC=y
>> CONFIG_LOG_BUF_SHIFT=18
>> CONFIG_CGROUPS=y
>> CONFIG_RELAY=y
>> CONFIG_BOOT_CONFIG=y
>> CONFIG_EXPERT=y
>> CONFIG_PERF_EVENTS=y
>> # CONFIG_SLUB_DEBUG is not set
>> # CONFIG_COMPAT_BRK is not set
>> CONFIG_ARCH_MULTI_V6=y
>> CONFIG_ARCH_MXC=y
>> CONFIG_SOC_IMX6Q=y
>> # CONFIG_HARDEN_BRANCH_HISTORY is not set
>> CONFIG_ARM_ERRATA_814220=y
>> CONFIG_SMP=y
>> CONFIG_SCHED_MC=y
>> CONFIG_HAVE_ARM_ARCH_TIMER=y
>> CONFIG_HOTPLUG_CPU=y
>> CONFIG_ARM_PSCI=y
>> CONFIG_HIGHMEM=y
>> CONFIG_ZBOOT_ROM_TEXT=0
>> CONFIG_ZBOOT_ROM_BSS=0
>> CONFIG_CMDLINE="noinitrd console=ttymxc0,115200"
>> CONFIG_CPU_FREQ=y
>> CONFIG_CPU_FREQ_DEFAULT_GOV_ONDEMAND=y
>> CONFIG_ARM_IMX6Q_CPUFREQ=y
>> CONFIG_CPU_IDLE=y
>> CONFIG_VFP=y
>> CONFIG_NEON=y
>> # CONFIG_SUSPEND is not set
>> CONFIG_PM=y
>> CONFIG_PM_DEBUG=y
>> CONFIG_ACMEINC_SPI_CLRC663=y
>> # CONFIG_MXC_GPU_VIV is not set
>> CONFIG_U_DMA_BUF=y
>> CONFIG_MXC_VPU=y
>> CONFIG_WILC_SDIO=y
>> # CONFIG_SECCOMP is not set
>> CONFIG_NET=y
>> CONFIG_PACKET=y
>> CONFIG_UNIX=y
>> CONFIG_INET=y
>> CONFIG_IP_PNP=y
>> CONFIG_IP_PNP_DHCP=y
>> CONFIG_MPTCP=y
>> CONFIG_NETFILTER=y
>> # CONFIG_NETFILTER_EGRESS is not set
>> CONFIG_BRIDGE=y
>> CONFIG_CFG80211=y
>> # CONFIG_CFG80211_DEFAULT_PS is not set
>> CONFIG_CFG80211_DEBUGFS=y
>> CONFIG_CFG80211_WEXT=y
>> CONFIG_MAC80211=y
>> CONFIG_MAC80211_DEBUGFS=y
>> CONFIG_RFKILL=y
>> CONFIG_RFKILL_INPUT=y
>> CONFIG_PCI=y
>> CONFIG_UEVENT_HELPER=y
>> CONFIG_DEVTMPFS=y
>> CONFIG_DEVTMPFS_MOUNT=y
>> # CONFIG_STANDALONE is not set
>> CONFIG_EXTRA_FIRMWARE="mchp/wilc1000_wifi_firmware.bin
>> imx/sdma/sdma-imx6q.bin vpu_fw_imx6d.bin brcm/brcmfmac43455-sdio.bin
>> brcm/brcmfmac43455-sdio.acmeinc,imx6q-doorvision.txt vpu_fw_imx6q.bin"
>> CONFIG_EXTRA_FIRMWARE_DIR="drivers/base/firmware_loader/builtin"
>> CONFIG_IMX_WEIM=y
>> CONFIG_CONNECTOR=y
>> CONFIG_MTD=y
>> CONFIG_MTD_CMDLINE_PARTS=y
>> CONFIG_MTD_BLOCK=y
>> CONFIG_MTD_CFI=y
>> CONFIG_MTD_JEDECPROBE=y
>> CONFIG_MTD_CFI_INTELEXT=y
>> CONFIG_MTD_CFI_AMDSTD=y
>> CONFIG_MTD_CFI_STAA=y
>> CONFIG_MTD_DATAFLASH=y
>> CONFIG_MTD_SST25L=y
>> CONFIG_MTD_RAW_NAND=y
>> CONFIG_MTD_NAND_GPMI_NAND=y
>> CONFIG_MTD_SPI_NOR=y
>> CONFIG_MTD_UBI=y
>> CONFIG_MTD_UBI_FASTMAP=y
>> CONFIG_MTD_UBI_BLOCK=y
>> CONFIG_BLK_DEV_LOOP=y
>> CONFIG_BLK_DEV_RAM=y
>> CONFIG_BLK_DEV_RAM_SIZE=65536
>> CONFIG_EEPROM_AT24=y
>> CONFIG_EEPROM_AT25=y
>> CONFIG_SCSI=y
>> # CONFIG_SCSI_PROC_FS is not set
>> CONFIG_BLK_DEV_SD=y
>> # CONFIG_BLK_DEV_BSG is not set
>> CONFIG_SCSI_CONSTANTS=y
>> CONFIG_SCSI_LOGGING=y
>> CONFIG_SCSI_SCAN_ASYNC=y
>> # CONFIG_SCSI_LOWLEVEL is not set
>> CONFIG_NETDEVICES=y
>> # CONFIG_NET_VENDOR_3COM is not set
>> # CONFIG_NET_VENDOR_ADAPTEC is not set
>> # CONFIG_NET_VENDOR_AGERE is not set
>> # CONFIG_NET_VENDOR_ALACRITECH is not set
>> # CONFIG_NET_VENDOR_ALTEON is not set
>> # CONFIG_NET_VENDOR_AMAZON is not set
>> # CONFIG_NET_VENDOR_AMD is not set
>> # CONFIG_NET_VENDOR_AQUANTIA is not set
>> # CONFIG_NET_VENDOR_ARC is not set
>> # CONFIG_NET_VENDOR_ASIX is not set
>> # CONFIG_NET_VENDOR_ATHEROS is not set
>> # CONFIG_NET_VENDOR_BROADCOM is not set
>> # CONFIG_NET_VENDOR_CADENCE is not set
>> # CONFIG_NET_VENDOR_CAVIUM is not set
>> # CONFIG_NET_VENDOR_CHELSIO is not set
>> # CONFIG_NET_VENDOR_CIRRUS is not set
>> # CONFIG_NET_VENDOR_CISCO is not set
>> # CONFIG_NET_VENDOR_CORTINA is not set
>> # CONFIG_NET_VENDOR_DEC is not set
>> # CONFIG_NET_VENDOR_DLINK is not set
>> # CONFIG_NET_VENDOR_EMULEX is not set
>> # CONFIG_NET_VENDOR_ENGLEDER is not set
>> # CONFIG_NET_VENDOR_EZCHIP is not set
>> # CONFIG_NET_VENDOR_FARADAY is not set
>> # CONFIG_NET_VENDOR_GOOGLE is not set
>> # CONFIG_NET_VENDOR_HISILICON is not set
>> # CONFIG_NET_VENDOR_HUAWEI is not set
>> # CONFIG_NET_VENDOR_INTEL is not set
>> # CONFIG_NET_VENDOR_MARVELL is not set
>> # CONFIG_NET_VENDOR_MELLANOX is not set
>> # CONFIG_NET_VENDOR_MICREL is not set
>> # CONFIG_NET_VENDOR_MICROCHIP is not set
>> # CONFIG_NET_VENDOR_MICROSEMI is not set
>> # CONFIG_NET_VENDOR_MYRI is not set
>> # CONFIG_NET_VENDOR_NI is not set
>> # CONFIG_NET_VENDOR_NATSEMI is not set
>> # CONFIG_NET_VENDOR_NETERION is not set
>> # CONFIG_NET_VENDOR_NETRONOME is not set
>> # CONFIG_NET_VENDOR_NVIDIA is not set
>> # CONFIG_NET_VENDOR_OKI is not set
>> # CONFIG_NET_VENDOR_PACKET_ENGINES is not set
>> # CONFIG_NET_VENDOR_PENSANDO is not set
>> # CONFIG_NET_VENDOR_QLOGIC is not set
>> # CONFIG_NET_VENDOR_BROCADE is not set
>> # CONFIG_NET_VENDOR_QUALCOMM is not set
>> # CONFIG_NET_VENDOR_RDC is not set
>> # CONFIG_NET_VENDOR_REALTEK is not set
>> # CONFIG_NET_VENDOR_RENESAS is not set
>> # CONFIG_NET_VENDOR_ROCKER is not set
>> # CONFIG_NET_VENDOR_SAMSUNG is not set
>> # CONFIG_NET_VENDOR_SEEQ is not set
>> # CONFIG_NET_VENDOR_SILAN is not set
>> # CONFIG_NET_VENDOR_SIS is not set
>> # CONFIG_NET_VENDOR_SOLARFLARE is not set
>> # CONFIG_NET_VENDOR_SMSC is not set
>> # CONFIG_NET_VENDOR_SOCIONEXT is not set
>> # CONFIG_NET_VENDOR_STMICRO is not set
>> # CONFIG_NET_VENDOR_SUN is not set
>> # CONFIG_NET_VENDOR_SYNOPSYS is not set
>> # CONFIG_NET_VENDOR_TEHUTI is not set
>> # CONFIG_NET_VENDOR_TI is not set
>> # CONFIG_NET_VENDOR_VERTEXCOM is not set
>> # CONFIG_NET_VENDOR_VIA is not set
>> # CONFIG_NET_VENDOR_WIZNET is not set
>> # CONFIG_NET_VENDOR_XILINX is not set
>> CONFIG_DP83867_PHY=y
>> CONFIG_USB_USBNET=y
>> # CONFIG_WLAN_VENDOR_ADMTEK is not set
>> # CONFIG_WLAN_VENDOR_ATH is not set
>> # CONFIG_WLAN_VENDOR_ATMEL is not set
>> CONFIG_BRCMFMAC=y
>> # CONFIG_WLAN_VENDOR_CISCO is not set
>> # CONFIG_WLAN_VENDOR_INTEL is not set
>> # CONFIG_WLAN_VENDOR_INTERSIL is not set
>> # CONFIG_WLAN_VENDOR_MARVELL is not set
>> # CONFIG_WLAN_VENDOR_MEDIATEK is not set
>> # CONFIG_WLAN_VENDOR_MICROCHIP is not set
>> # CONFIG_WLAN_VENDOR_RALINK is not set
>> # CONFIG_WLAN_VENDOR_REALTEK is not set
>> # CONFIG_WLAN_VENDOR_RSI is not set
>> # CONFIG_WLAN_VENDOR_ST is not set
>> # CONFIG_WLAN_VENDOR_TI is not set
>> # CONFIG_WLAN_VENDOR_ZYDAS is not set
>> # CONFIG_WLAN_VENDOR_QUANTENNA is not set
>> CONFIG_INPUT_EVDEV=y
>> CONFIG_KEYBOARD_GPIO=y
>> CONFIG_KEYBOARD_IMX=y
>> # CONFIG_MOUSE_PS2 is not set
>> CONFIG_INPUT_TOUCHSCREEN=y
>> CONFIG_TOUCHSCREEN_EDT_FT5X06=y
>> CONFIG_INPUT_MISC=y
>> # CONFIG_SERIO_SERPORT is not set
>> # CONFIG_LEGACY_PTYS is not set
>> CONFIG_SERIAL_IMX=y
>> CONFIG_SERIAL_IMX_CONSOLE=y
>> # CONFIG_SERIAL_IMX_EARLYCON is not set
>> CONFIG_SERIAL_FSL_LPUART=y
>> CONFIG_SERIAL_FSL_LPUART_CONSOLE=y
>> # CONFIG_I2C_COMPAT is not set
>> CONFIG_I2C_CHARDEV=y
>> CONFIG_I2C_MUX_GPIO=y
>> # CONFIG_I2C_HELPER_AUTO is not set
>> CONFIG_I2C_GPIO=y
>> CONFIG_I2C_IMX=y
>> CONFIG_SPI=y
>> CONFIG_SPI_FSL_QUADSPI=y
>> CONFIG_SPI_IMX=y
>> CONFIG_SPI_SPIDEV=y
>> CONFIG_PINCTRL_MICROCHIP_SGPIO=y
>> CONFIG_GPIO_SYSFS=y
>> CONFIG_GPIO_MXC=y
>> CONFIG_GPIO_PCA953X=y
>> CONFIG_POWER_RESET=y
>> CONFIG_POWER_RESET_SYSCON=y
>> CONFIG_POWER_RESET_SYSCON_POWEROFF=y
>> CONFIG_POWER_SUPPLY=y
>> CONFIG_SENSORS_GPIO_FAN=y
>> CONFIG_SENSORS_IIO_HWMON=y
>> CONFIG_CPU_THERMAL=y
>> CONFIG_IMX_THERMAL=y
>> CONFIG_WATCHDOG=y
>> CONFIG_RN5T618_WATCHDOG=y
>> CONFIG_IMX2_WDT=y
>> CONFIG_MFD_RN5T618=y
>> CONFIG_REGULATOR=y
>> CONFIG_REGULATOR_FIXED_VOLTAGE=y
>> CONFIG_REGULATOR_ANATOP=y
>> CONFIG_REGULATOR_GPIO=y
>> CONFIG_REGULATOR_RN5T618=y
>> # CONFIG_MEDIA_CEC_SUPPORT is not set
>> CONFIG_MEDIA_SUPPORT=y
>> CONFIG_MEDIA_SUBDRV_AUTOSELECT=y
>> # CONFIG_DVB_NET is not set
>> # CONFIG_DVB_DYNAMIC_MINORS is not set
>> # CONFIG_RADIO_ADAPTERS is not set
>> CONFIG_V4L_PLATFORM_DRIVERS=y
>> CONFIG_VIDEO_MUX=y
>> CONFIG_V4L_MEM2MEM_DRIVERS=y
>> CONFIG_VIDEO_CODA=y
>> CONFIG_VIDEO_IMX_PXP=y
>> CONFIG_VIDEO_MEM2MEM_DEINTERLACE=y
>> CONFIG_VIDEO_IMX219=y
>> CONFIG_VIDEO_IMX415=y
>> CONFIG_IMX_IPUV3_CORE=y
>> CONFIG_DRM=y
>> CONFIG_DRM_PANEL_SIMPLE=y
>> CONFIG_DRM_LVDS_CODEC=y
>> CONFIG_DRM_IMX=y
>> CONFIG_DRM_IMX_PARALLEL_DISPLAY=y
>> CONFIG_DRM_IMX_TVE=y
>> CONFIG_DRM_IMX_LDB=y
>> CONFIG_DRM_IMX_HDMI=y
>> CONFIG_DRM_ETNAVIV=y
>> CONFIG_DRM_MXSFB=y
>> CONFIG_FB=y
>> CONFIG_FB_MODE_HELPERS=y
>> CONFIG_LCD_CLASS_DEVICE=y
>> CONFIG_LCD_PLATFORM=y
>> CONFIG_BACKLIGHT_PWM=y
>> CONFIG_BACKLIGHT_GPIO=y
>> CONFIG_FRAMEBUFFER_CONSOLE=y
>> CONFIG_LOGO=y
>> # CONFIG_LOGO_LINUX_MONO is not set
>> # CONFIG_LOGO_LINUX_VGA16 is not set
>> # CONFIG_LOGO_LINUX_CLUT224 is not set
>> CONFIG_SOUND=y
>> CONFIG_SND=y
>> CONFIG_SND_VERBOSE_PRINTK=y
>> CONFIG_SND_DEBUG=y
>> CONFIG_SND_DEBUG_VERBOSE=y
>> # CONFIG_SND_PCI is not set
>> # CONFIG_SND_USB is not set
>> CONFIG_SND_SOC=y
>> CONFIG_SND_SOC_FSL_ASRC=y
>> CONFIG_SND_SOC_FSL_SPDIF=y
>> CONFIG_SND_IMX_SOC=y
>> CONFIG_SND_SOC_IMX_ZL38060=y
>> CONFIG_SND_SOC_FSL_ASOC_CARD=y
>> CONFIG_SND_SOC_TLV320AIC3X_I2C=y
>> CONFIG_SND_SIMPLE_CARD=y
>> CONFIG_SND_AUDIO_GRAPH_CARD=y
>> CONFIG_USB=y
>> CONFIG_USB_ANNOUNCE_NEW_DEVICES=y
>> CONFIG_USB_EHCI_HCD=y
>> CONFIG_USB_CHIPIDEA=y
>> CONFIG_USB_CHIPIDEA_UDC=y
>> CONFIG_USB_CHIPIDEA_HOST=y
>> CONFIG_NOP_USB_XCEIV=y
>> CONFIG_USB_MXS_PHY=y
>> CONFIG_USB_GADGET=y
>> CONFIG_USB_ETH=y
>> CONFIG_MMC=y
>> CONFIG_MMC_SDHCI=y
>> CONFIG_MMC_SDHCI_PLTFM=y
>> CONFIG_MMC_SDHCI_ESDHC_IMX=y
>> CONFIG_NEW_LEDS=y
>> CONFIG_LEDS_CLASS=y
>> CONFIG_LEDS_GPIO=y
>> CONFIG_LEDS_PWM=y
>> CONFIG_LEDS_TRIGGERS=y
>> CONFIG_LEDS_TRIGGER_TIMER=y
>> CONFIG_LEDS_TRIGGER_ONESHOT=y
>> CONFIG_LEDS_TRIGGER_HEARTBEAT=y
>> CONFIG_LEDS_TRIGGER_BACKLIGHT=y
>> CONFIG_LEDS_TRIGGER_GPIO=y
>> CONFIG_RTC_CLASS=y
>> CONFIG_RTC_INTF_DEV_UIE_EMUL=y
>> CONFIG_RTC_DRV_PCF8563=y
>> CONFIG_RTC_DRV_MXC=y
>> CONFIG_RTC_DRV_MXC_V2=y
>> CONFIG_RTC_DRV_SNVS=y
>> CONFIG_DMADEVICES=y
>> CONFIG_FSL_EDMA=y
>> CONFIG_IMX_SDMA=y
>> CONFIG_MXS_DMA=y
>> # CONFIG_VIRTIO_MENU is not set
>> CONFIG_STAGING=y
>> CONFIG_STAGING_MEDIA=y
>> CONFIG_VIDEO_IMX_MEDIA=y
>> CONFIG_COMMON_CLK_PWM=y
>> CONFIG_IMX_GPCV2_PM_DOMAINS=y
>> CONFIG_IIO=y
>> CONFIG_VF610_ADC=y
>> CONFIG_OPT3001=y
>> CONFIG_VCNL4000=y
>> CONFIG_VCNL4200=y
>> CONFIG_MPL3115=y
>> CONFIG_PWM=y
>> CONFIG_PWM_FSL_FTM=y
>> CONFIG_PWM_IMX27=y
>> CONFIG_RAS=y
>> CONFIG_NVMEM_IMX_OCOTP=y
>> CONFIG_NVMEM_SNVS_LPGPR=y
>> CONFIG_MUX_MMIO=y
>> CONFIG_VALIDATE_FS_PARSER=y
>> CONFIG_QUOTA=y
>> CONFIG_QUOTA_NETLINK_INTERFACE=y
>> # CONFIG_PRINT_QUOTA_WARNING is not set
>> CONFIG_AUTOFS4_FS=y
>> CONFIG_FUSE_FS=y
>> CONFIG_MSDOS_FS=y
>> CONFIG_VFAT_FS=y
>> CONFIG_JFFS2_FS=y
>> CONFIG_JFFS2_FS_WBUF_VERIFY=y
>> CONFIG_JFFS2_COMPRESSION_OPTIONS=y
>> CONFIG_UBIFS_FS=y
>> CONFIG_SQUASHFS=y
>> CONFIG_NFS_FS=y
>> CONFIG_NFS_V3_ACL=y
>> CONFIG_NFS_V4=y
>> CONFIG_ROOT_NFS=y
>> CONFIG_NLS_DEFAULT="cp437"
>> CONFIG_NLS_CODEPAGE_437=y
>> CONFIG_NLS_CODEPAGE_850=y
>> CONFIG_NLS_ASCII=y
>> CONFIG_NLS_ISO8859_1=y
>> CONFIG_NLS_ISO8859_15=y
>> CONFIG_NLS_UTF8=y
>> CONFIG_SECURITYFS=y
>> CONFIG_LSM="yama,loadpin,safesetid,integrity,selinux,smack,tomoyo,apparmor"
>> CONFIG_CRYPTO_ECDH=y
>> CONFIG_CRYPTO_SEQIV=y
>> CONFIG_CRYPTO_SHA1=y
>> CONFIG_CRYPTO_DES=y
>> CONFIG_CRYPTO_DEV_FSL_CAAM=y
>> CONFIG_CRYPTO_DEV_SAHARA=y
>> CONFIG_CRC_CCITT=y
>> CONFIG_CRC_T10DIF=y
>> CONFIG_CRC_ITU_T=y
>> CONFIG_CRC7=y
>> CONFIG_LIBCRC32C=y
>> CONFIG_CMA_SIZE_MBYTES=64
>> CONFIG_FONTS=y
>> CONFIG_FONT_8x8=y
>> CONFIG_FONT_8x16=y
>> CONFIG_PRINTK_TIME=y
>> # CONFIG_DEBUG_BUGVERBOSE is not set
>> CONFIG_MAGIC_SYSRQ=y
>> CONFIG_DEBUG_FS=y
>> CONFIG_PANIC_TIMEOUT=1
>> # CONFIG_SCHED_DEBUG is not set
>> CONFIG_PROVE_LOCKING=y
>> # CONFIG_RCU_TRACE is not set
>> # CONFIG_FTRACE is not set
>>
>>
>>
>> Am 17.05.2022 um 20:55 schrieb Marian Postevca:
>>> 12 May 2022 16:39:02 Maximilian Senftleben<kernel@mail.msdigital.de>:
>>>
>>>> [1.] One line summary of the problem:
>>>>
>>>> No static MAC address for usb gadget ethernet via kernel boot parameter any more.
>>>>
>>>> [2.] Full description of the problem/report:
>>>>
>>>> In 5.15. and before we were able to set a static MAC address for the usb gadget ethernet connection using kernel parameters "g_ether.dev_addr" and "g_ether.host_addr".
>>>> Since 5.16. and more concrete after commit 890d5b40908bfd1a79be018d2d297cf9df60f4ee, this is no longer possible, and a random MAC address is assigned.
>>>> (Possible Regression)
>>>>
>>>> [3.] Keywords (i.e., modules, networking, kernel):
>>>> usb, gadget, mac, g_ether
>>>>
>>>> [4.] Kernel information
>>>> [4.1.] Kernel version (from /proc/version):
>>>> Linux version 5.17.4-141174-ge11818a6ec02 (ms@local) (arm-v7a-linux-gnueabihf-gcc (OSELAS.Toolchain-2020.08.0 10-20200822) 10.2.1 20200822, GNU ld (GNU Binutils) 2.35) #14 SMP Thu May 12 13:51:50 CEST 2022
>>>> [4.2.] Kernel .config file:
>>>> -
>>> Could you please send the kernel .config file and kernel command line with which you reproduce this issue?