make[4]: Entering directory '/builder/shared-workdir/build/sdk/build_dir/target-arm_cortex-a7_musl_eabi/linux-mediatek_mt7629/linux-5.15.110'
  CC [M]  /builder/shared-workdir/build/sdk/build_dir/target-arm_cortex-a7_musl_eabi/linux-mediatek_mt7629/usb-serial-xr_usb_serial_common-2022-03-30-ecc6ebe0/xr_usb_serial_common-1a/xr_usb_serial_common.o
/builder/shared-workdir/build/sdk/build_dir/target-arm_cortex-a7_musl_eabi/linux-mediatek_mt7629/usb-serial-xr_usb_serial_common-2022-03-30-ecc6ebe0/xr_usb_serial_common-1a/xr_usb_serial_common.c: In function 'xr_usb_serial_ctrl_irq':
/builder/shared-workdir/build/sdk/build_dir/target-arm_cortex-a7_musl_eabi/linux-mediatek_mt7629/usb-serial-xr_usb_serial_common-2022-03-30-ecc6ebe0/xr_usb_serial_common-1a/xr_usb_serial_common.c:261:28: error: unused variable 'tty' [-Werror=unused-variable]
  261 |         struct tty_struct *tty;
      |                            ^~~
/builder/shared-workdir/build/sdk/build_dir/target-arm_cortex-a7_musl_eabi/linux-mediatek_mt7629/usb-serial-xr_usb_serial_common-2022-03-30-ecc6ebe0/xr_usb_serial_common-1a/xr_usb_serial_common.c: In function 'xr_usb_serial_process_read_urb':
/builder/shared-workdir/build/sdk/build_dir/target-arm_cortex-a7_musl_eabi/linux-mediatek_mt7629/usb-serial-xr_usb_serial_common-2022-03-30-ecc6ebe0/xr_usb_serial_common-1a/xr_usb_serial_common.c:393:28: error: unused variable 'tty' [-Werror=unused-variable]
  393 |         struct tty_struct *tty;
      |                            ^~~
/builder/shared-workdir/build/sdk/build_dir/target-arm_cortex-a7_musl_eabi/linux-mediatek_mt7629/usb-serial-xr_usb_serial_common-2022-03-30-ecc6ebe0/xr_usb_serial_common-1a/xr_usb_serial_common.c: In function 'xr_usb_serial_softint':
/builder/shared-workdir/build/sdk/build_dir/target-arm_cortex-a7_musl_eabi/linux-mediatek_mt7629/usb-serial-xr_usb_serial_common-2022-03-30-ecc6ebe0/xr_usb_serial_common-1a/xr_usb_serial_common.c:468:28: error: unused variable 'tty' [-Werror=unused-variable]
  468 |         struct tty_struct *tty;
      |                            ^~~
/builder/shared-workdir/build/sdk/build_dir/target-arm_cortex-a7_musl_eabi/linux-mediatek_mt7629/usb-serial-xr_usb_serial_common-2022-03-30-ecc6ebe0/xr_usb_serial_common-1a/xr_usb_serial_common.c: In function 'xr_usb_serial_reset_resume':
/builder/shared-workdir/build/sdk/build_dir/target-arm_cortex-a7_musl_eabi/linux-mediatek_mt7629/usb-serial-xr_usb_serial_common-2022-03-30-ecc6ebe0/xr_usb_serial_common-1a/xr_usb_serial_common.c:1634:28: error: unused variable 'tty' [-Werror=unused-variable]
 1634 |         struct tty_struct *tty;
      |                            ^~~
cc1: all warnings being treated as errors
make[5]: *** [scripts/Makefile.build:289: /builder/shared-workdir/build/sdk/build_dir/target-arm_cortex-a7_musl_eabi/linux-mediatek_mt7629/usb-serial-xr_usb_serial_common-2022-03-30-ecc6ebe0/xr_usb_serial_common-1a/xr_usb_serial_common.o] Error 1
make[4]: *** [Makefile:1906: /builder/shared-workdir/build/sdk/build_dir/target-arm_cortex-a7_musl_eabi/linux-mediatek_mt7629/usb-serial-xr_usb_serial_common-2022-03-30-ecc6ebe0/xr_usb_serial_common-1a] Error 2
make[4]: Leaving directory '/builder/shared-workdir/build/sdk/build_dir/target-arm_cortex-a7_musl_eabi/linux-mediatek_mt7629/linux-5.15.110'
make[3]: *** [Makefile:42: /builder/shared-workdir/build/sdk/build_dir/target-arm_cortex-a7_musl_eabi/linux-mediatek_mt7629/usb-serial-xr_usb_serial_common-2022-03-30-ecc6ebe0/.built] Error 2
time: package/feeds/packages/xr_usb_serial_common/compile#4.20#1.21#7.98