linux kernel buiding error.

[ivan-ef]

got an error when buiding linux kernel. Could you help?
target is Openfi 6C
I also added qmodem packages and custom package for Opnenfi to control fan, If it does matter.

2025-09-05T17:10:33.1645613Z # CC drivers/net/ethernet/mediatek/mtk_eth_soc.o 2025-09-05T17:10:33.1654930Z aarch64-openwrt-linux-musl-gcc -Wp,-MMD,drivers/net/ethernet/mediatek/.mtk_eth_soc.o.d -nostdinc -I./arch/arm64/include -I./arch/arm64/include/generated -I./include -I./arch/arm64/include/uapi -I./arch/arm64/include/generated/uapi -I./include/uapi -I./include/generated/uapi -include ./include/linux/compiler-version.h -include ./include/linux/kconfig.h -include ./include/linux/compiler_types.h -D__KERNEL__ -mlittle-endian -DKASAN_SHADOW_SCALE_SHIFT= -fmacro-prefix-map=./= -std=gnu11 -fshort-wchar -funsigned-char -fno-common -fno-PIE -fno-strict-aliasing -mgeneral-regs-only -DCONFIG_CC_HAS_K_CONSTRAINT=1 -Wno-psabi -mabi=lp64 -fno-asynchronous-unwind-tables -fno-unwind-tables -mbranch-protection=none -Wa,-march=armv8.5-a -DARM64_ASM_ARCH='"armv8.5-a"' -DKASAN_SHADOW_SCALE_SHIFT= -fno-delete-null-pointer-checks -O2 -fno-allow-store-data-races -fstack-protector -fno-omit-frame-pointer -fno-optimize-sibling-calls -fno-stack-clash-protection -falign-functions=4 -fstrict-flex-arrays=3 -fno-strict-overflow -fno-stack-check -fconserve-stack -fno-builtin-wcslen -Wall -Wundef -Werror=implicit-function-declaration -Werror=implicit-int -Werror=return-type -Werror=strict-prototypes -Wno-format-security -Wno-trigraphs -Wno-frame-address -Wno-address-of-packed-member -Wframe-larger-than=2048 -Wno-main -Wno-unused-but-set-variable -Wno-unused-const-variable -Wno-dangling-pointer -Wvla -Wno-pointer-sign -Wcast-function-type -Wno-array-bounds -Wno-alloc-size-larger-than -Wimplicit-fallthrough=5 -Werror=date-time -Werror=incompatible-pointer-types -Werror=designated-init -Wenum-conversion -Wno-unused-but-set-variable -Wno-unused-const-variable -Wno-restrict -Wno-packed-not-aligned -Wno-format-overflow -Wno-format-truncation -Wno-stringop-overflow -Wno-stringop-truncation -Wno-missing-field-initializers -Wno-type-limits -Wno-shift-negative-value -Wno-maybe-uninitialized -Wno-sign-compare -g -fno-var-tracking -femit-struct-debug-baseonly -fmacro-prefix-map=/home/runner/work/immortalwrt-mt798x-6.6/immortalwrt-mt798x-6.6/build_dir/target-aarch64_cortex-a53_musl=target-aarch64_cortex-a53_musl -fno-caller-saves -mstack-protector-guard=sysreg -mstack-protector-guard-reg=sp_el0 -mstack-protector-guard-offset=1072 -DKBUILD_MODFILE='"drivers/net/ethernet/mediatek/mtk_eth"' -DKBUILD_BASENAME='"mtk_eth_soc"' -DKBUILD_MODNAME='"mtk_eth"' -D__KBUILD_MODNAME=kmod_mtk_eth -c -o drivers/net/ethernet/mediatek/mtk_eth_soc.o drivers/net/ethernet/mediatek/mtk_eth_soc.c 2025-09-05T17:10:33.9891394Z drivers/net/ethernet/mediatek/mtk_eth_soc.c: In function 'mtk_poll_rx': 2025-09-05T17:10:33.9897729Z drivers/net/ethernet/mediatek/mtk_eth_soc.c:2488:88: error: 'HIT_BIND_FORCE_TO_CPU' undeclared (first use in this function) 2025-09-05T17:10:33.9898568Z 2488 | if ( (mac == 4) || ((FIELD_GET(MTK_RXD4_PPE_CPU_REASON, trxd.rxd4)) == HIT_BIND_FORCE_TO_CPU)) 2025-09-05T17:10:33.9899081Z | ^~~~~~~~~~~~~~~~~~~~~ 2025-09-05T17:10:33.9899794Z drivers/net/ethernet/mediatek/mtk_eth_soc.c:2488:88: note: each undeclared identifier is reported only once for each function it appears in 2025-09-05T17:10:34.1468619Z drivers/net/ethernet/mediatek/mtk_eth_soc.c: In function 'mtk_pending_work': 2025-09-05T17:10:34.1481780Z drivers/net/ethernet/mediatek/mtk_eth_soc.c:5467:42: error: 'MTK_FE_START_RESET' undeclared (first use in this function) 2025-09-05T17:10:34.1482810Z 5467 | call_netdevice_notifiers(MTK_FE_START_RESET, eth->netdev[i]); 2025-09-05T17:10:34.1483216Z | ^~~~~~~~~~~~~~~~~~ 2025-09-05T17:10:34.2124366Z drivers/net/ethernet/mediatek/mtk_eth_soc.c:5513:42: error: 'MTK_FE_RESET_NAT_DONE' undeclared (first use in this function) 2025-09-05T17:10:34.2125142Z 5513 | call_netdevice_notifiers(MTK_FE_RESET_NAT_DONE, eth->netdev[i]); 2025-09-05T17:10:34.2125572Z | ^~~~~~~~~~~~~~~~~~~~~ 2025-09-05T17:10:34.2597337Z drivers/net/ethernet/mediatek/mtk_eth_soc.c:5515:42: error: 'MTK_FE_RESET_DONE' undeclared (first use in this function) 2025-09-05T17:10:34.2598124Z 5515 | call_netdevice_notifiers(MTK_FE_RESET_DONE, eth->netdev[i]); 2025-09-05T17:10:34.2598535Z | ^~~~~~~~~~~~~~~~~ 2025-09-05T17:10:34.3545347Z drivers/net/ethernet/mediatek/mtk_eth_soc.c: In function 'mtk_eth_netdevice_event': 2025-09-05T17:10:34.3571062Z drivers/net/ethernet/mediatek/mtk_eth_soc.c:7163:14: error: 'MTK_WIFI_RESET_DONE' undeclared (first use in this function); did you mean 'MTK_WED_RESET_IDX'? 2025-09-05T17:10:34.3571800Z 7163 | case MTK_WIFI_RESET_DONE: 2025-09-05T17:10:34.3574007Z | ^~~~~~~~~~~~~~~~~~~ 2025-09-05T17:10:34.3574300Z | MTK_WED_RESET_IDX 2025-09-05T17:10:34.4193931Z drivers/net/ethernet/mediatek/mtk_eth_soc.c:7170:14: error: 'MTK_WIFI_CHIP_ONLINE' undeclared (first use in this function) 2025-09-05T17:10:34.4195030Z 7170 | case MTK_WIFI_CHIP_ONLINE: 2025-09-05T17:10:34.4195338Z | ^~~~~~~~~~~~~~~~~~~~ 2025-09-05T17:10:34.4831685Z drivers/net/ethernet/mediatek/mtk_eth_soc.c:7174:14: error: 'MTK_WIFI_CHIP_OFFLINE' undeclared (first use in this function) 2025-09-05T17:10:34.4832978Z 7174 | case MTK_WIFI_CHIP_OFFLINE: 2025-09-05T17:10:34.4833479Z | ^~~~~~~~~~~~~~~~~~~~~ 2025-09-05T17:10:34.5444242Z make[11]: *** [scripts/Makefile.build:243: drivers/net/ethernet/mediatek/mtk_eth_soc.o] Error 1 2025-09-05T17:10:34.5445926Z make[10]: *** [scripts/Makefile.build:480: drivers/net/ethernet/mediatek] Error 2 2025-09-05T17:10:34.5448501Z make[9]: *** [scripts/Makefile.build:480: drivers/net/ethernet] Error 2 2025-09-05T17:10:34.5450790Z make[8]: *** [scripts/Makefile.build:480: drivers/net] Error 2 2025-09-05T17:10:34.5453940Z make[7]: *** [scripts/Makefile.build:480: drivers] Error 2 2025-09-05T17:10:34.5457709Z make[6]: *** [/home/runner/work/immortalwrt-mt798x-6.6/immortalwrt-mt798x-6.6/build_dir/target-aarch64_cortex-a53_musl/linux-mediatek_filogic/linux-6.6.95/Makefile:1924: .] Error 2 2025-09-05T17:10:34.5460154Z make[5]: *** [Makefile:234: __sub-make] Error 2 2025-09-05T17:10:34.5460943Z make[5]: Leaving directory '/home/runner/work/immortalwrt-mt798x-6.6/immortalwrt-mt798x-6.6/build_dir/target-aarch64_cortex-a53_musl/linux-mediatek_filogic/linux-6.6.95' 2025-09-05T17:10:34.5463444Z make[4]: *** [Makefile:18: /home/runner/work/immortalwrt-mt798x-6.6/immortalwrt-mt798x-6.6/build_dir/target-aarch64_cortex-a53_musl/linux-mediatek_filogic/linux-6.6.95/.modules] Error 2 2025-09-05T17:10:34.5465456Z make[4]: Leaving directory '/home/runner/work/immortalwrt-mt798x-6.6/immortalwrt-mt798x-6.6/target/linux/mediatek' 2025-09-05T17:10:34.5466010Z make[3]: *** [Makefile:12: compile] Error 2 2025-09-05T17:10:34.5466478Z make[3]: Leaving directory '/home/runner/work/immortalwrt-mt798x-6.6/immortalwrt-mt798x-6.6/target/linux' 2025-09-05T17:10:34.5469251Z time: target/linux/compile#735.51#69.39#800.24 2025-09-05T17:10:34.5476967Z ERROR: target/linux failed to build. 2025-09-05T17:10:34.5481222Z make[2]: *** [target/Makefile:32: target/linux/compile] Error 1 2025-09-05T17:10:34.5490708Z make[2]: Leaving directory '/home/runner/work/immortalwrt-mt798x-6.6/immortalwrt-mt798x-6.6' 2025-09-05T17:10:34.5495893Z make[1]: *** [target/Makefile:25: /home/runner/work/immortalwrt-mt798x-6.6/immortalwrt-mt798x-6.6/staging_dir/target-aarch64_cortex-a53_musl/stamp/.target_compile] Error 2 2025-09-05T17:10:34.5504591Z make[1]: Leaving directory '/home/runner/work/immortalwrt-mt798x-6.6/immortalwrt-mt798x-6.6' 2025-09-05T17:10:34.5515193Z make: *** [/home/runner/work/immortalwrt-mt798x-6.6/immortalwrt-mt798x-6.6/include/toplevel.mk:233: world] Error 2 2025-09-05T17:10:34.5533512Z ##[error]Process completed with exit code 2.