On ubuntu 22.04 docker build source l4t for ubuntu 22.04 Jetson Nano 2G.

1. ここからインタラクティブに処理を実行します。
$ docker run -it -d arm64v8/ubuntu:22.04
$ docker ps で、 active な、CONTAINER IDをチェック
$ docker exec -it container-id bash
# apt-get update
# apt install -y build-essential bc libncurses5 libncurses5-dev
# apt install -y wget
# mkdir -p /home/nishi
# cd /home/nishi
# wget https://developer.nvidia.com/embedded/l4t/r32_release_v7.1/sources/t210/public_sources.tbz2
# tar -xjf public_sources.tbz2
# cd Linux_for_Tegra/source/public
# tar -xjf kernel_src.tbz2
# cd kernel/kernel-4.9

# export TEGRA_KERNEL_OUT=/home/nishi/t4l-kernel
# mkdir -p $TEGRA_KERNEL_OUT

## Initialize the config
# make ARCH=arm64 O=$TEGRA_KERNEL_OUT tegra_defconfig

make[1]: Entering directory '/home/nishi/t4l-kernel'
HOSTCC scripts/basic/fixdep
GEN ./Makefile
HOSTCC scripts/kconfig/conf.o
SHIPPED scripts/kconfig/zconf.tab.c
SHIPPED scripts/kconfig/zconf.lex.c
SHIPPED scripts/kconfig/zconf.hash.c
HOSTCC scripts/kconfig/zconf.tab.o
HOSTLD scripts/kconfig/conf
#
# configuration written to .config
#

# make ARCH=arm64 O=$TEGRA_KERNEL_OUT menuconfig

## build
# make ARCH=arm64 O=$TEGRA_KERNEL_OUT -j2

もともとのソースにコンパイルバグがあるので、それがでてきました。

エラー 1
/home/nishi/Linux_for_Tegra/source/public/kernel/kernel-4.9/drivers/net/ethernet/chelsio/cxgb4/cxgb4_debugfs.c:2447:9: error: this 'for' clause does not guard... [-Werror=misleading-indentation] 2447 | for (i = 0; i < n; ++i) \ <-- { } が必要か? | ^~~
/home/nishi/Linux_for_Tegra/source/public/kernel/kernel-4.9/drivers/net/ethernet/chelsio/cxgb4/cxgb4_debugfs.c を vim で開いて、
line 2447
{} で囲む。
#define S3(fmt_spec, s, v) \ do { \ seq_printf(seq, "%-12s", s); \ for (i = 0; i < n; ++i){ \ seq_printf(seq, " %16" fmt_spec, v); \ seq_putc(seq, '\n');} \ } while (0)
まあ、デバッグようらいしいから、コンパイルが通ればOKか。

エラー 2
/home/nishi/Linux_for_Tegra/source/public/kernel/kernel-4.9/drivers/net/ethernet/neterion/vxge/vxge-traffic.c:1748:13: error: argument 2 of type 'u8[6]' {aka 'unsigned char[6]'} with mismatched bound [-Werror=array-parameter=] 1748 | u8 (macaddr)[ETH_ALEN], | ~~~~^~~~~~~~~~~~~~~~~~ In file included from /home/nishi/Linux_for_Tegra/source/public/kernel/kernel-4.9/drivers/net/ethernet/neterion/vxge/vxge-traffic.c:17: /home/nishi/Linux_for_Tegra/source/public/kernel/kernel-4.9/drivers/net/ethernet/neterion/vxge/vxge-traffic.h:2158:13: note: previously declared as 'u8 *' {aka 'unsigned char *'} 2158 | u8 *macaddr, | ~~~~^~~~~~~ /home/nishi/Linux_for_Tegra/source/public/kernel/kernel-4.9/drivers/net/ethernet/neterion/vxge/vxge-traffic.c:1749:13: error: argument 3 of type 'u8[6]' {aka 'unsigned char[6]'} with mismatched bound [-Werror=array-parameter=] 1749 | u8 (macaddr_mask)[ETH_ALEN], | ~~~~^~~~~~~~~~~~~~~~~~~~~~~ In file included from /home/nishi/Linux_for_Tegra/source/public/kernel/kernel-4.9/drivers/net/ethernet/neterion/vxge/vxge-traffic.c:17: /home/nishi/Linux_for_Tegra/source/public/kernel/kernel-4.9/drivers/net/ethernet/neterion/vxge/vxge-traffic.h:2159:13: note: previously declared as 'u8 *' {aka 'unsigned char *'} 2159 | u8 *macaddr_mask, .....
/home/nishi/Linux_for_Tegra/source/public/kernel/kernel-4.9/drivers/net/ethernet/neterion/vxge/vxge-traffic.c の中の関数のパラメータ定義と
/home/nishi/Linux_for_Tegra/source/public/kernel/kernel-4.9/drivers/net/ethernet/neterion/vxge/vxge-traffic.h の中の関数プロトタイプ宣言のパラメータ記述とが、一致していないみたい。

vxge-traffic.c の関数パラメータを、vxge-traffic.h の記述に合わせる。

例)
enum vxge_hw_status vxge_hw_vpath_mac_addr_get( struct __vxge_hw_vpath_handle *vp, //u8 (macaddr)[ETH_ALEN], // changed by nishi 2024.7.28 u8 *macaddr, //u8 (macaddr_mask)[ETH_ALEN]) // changed by nishi 2024.7.28 u8 *macaddr_mask) { .....

エラー 3
In file included from /home/nishi/Linux_for_Tegra/source/public/kernel/nvidia/drivers/net/wireless/bcmdhd/dhd_pno.c:48: /home/nishi/Linux_for_Tegra/source/public/kernel/nvidia/drivers/net/wireless/bcmdhd/dhd_dbg.h:36:37: error: this 'if' clause does not guard... [-Werror=misleading-indentation] 36 | #define DHD_ERROR(args) do {if ((dhd_msg_level & DHD_ERROR_VAL) && USE_NET_RATELIMIT) \ | ^~

/home/nishi/Linux_for_Tegra/source/public/kernel/nvidia/drivers/net/wireless/bcmdhd/dhd_dbg.h を修正

#define DHD_ERROR(args) do {if ((dhd_msg_level & DHD_ERROR_VAL) && USE_NET_RATELIMIT){ \ printf args; nv_sprintf args;}} while (0) #define DHD_TRACE(args) do {if (dhd_msg_level & DHD_TRACE_VAL){ printf args;}} while (0) #define DHD_INFO(args) do {if (dhd_msg_level & DHD_INFO_VAL){ printf args;}} while (0) #define DHD_DATA(args) do {if (dhd_msg_level & DHD_DATA_VAL){ printf args;}} while (0) #define DHD_CTL(args) do {if (dhd_msg_level & DHD_CTL_VAL){ printf args;}} while (0) #define DHD_TIMER(args) do {if (dhd_msg_level & DHD_TIMER_VAL){ printf args;}} while (0) #define DHD_HDRS(args) do {if (dhd_msg_level & DHD_HDRS_VAL){ printf args;}} while (0) #define DHD_BYTES(args) do {if (dhd_msg_level & DHD_BYTES_VAL){ printf args;}} while (0) #define DHD_INTR(args) do {if (dhd_msg_level & DHD_INTR_VAL){ printf args;}} while (0) #define DHD_GLOM(args) do {if (dhd_msg_level & DHD_GLOM_VAL){ printf args;}} while (0) #define DHD_EVENT(args) do {if (dhd_msg_level & DHD_EVENT_VAL){ printf args;}} while (0) #define DHD_BTA(args) do {if (dhd_msg_level & DHD_BTA_VAL){ printf args;}} while (0) #define DHD_ISCAN(args) do {if (dhd_msg_level & DHD_ISCAN_VAL){ printf args;}} while (0) #define DHD_ARPOE(args) do {if (dhd_msg_level & DHD_ARPOE_VAL){ printf args;}} while (0) #define DHD_REORDER(args) do {if (dhd_msg_level & DHD_REORDER_VAL){ printf args;}} while (0) #define DHD_PNO(args) do {if (dhd_msg_level & DHD_PNO_VAL){ printf args;}} while (0) #define DHD_FWLOG(args) do {if (dhd_msg_level & DHD_FWLOG_VAL){ printf args;}} while (0)

エラー #4
/home/nishi/Linux_for_Tegra/source/public/kernel/nvidia/drivers/net/wireless/bcmdhd/dhd_linux.c: In function 'dhd_watchdog_thread': /home/nishi/Linux_for_Tegra/source/public/kernel/nvidia/drivers/net/wireless/bcmdhd/dhd_linux.c:3363:33: error: this 'if' clause does not guard... [-Werror=misleading-indentation] 3363 | if (dhd->wd_timer_valid) | ^~ In file included from /home/nishi/Linux_for_Tegra/source/public/kernel/nvidia/drivers/net/wireless/bcmdhd/dhd_linux.c:84:

/home/nishi/Linux_for_Tegra/source/public/kernel/nvidia/drivers/net/wireless/bcmdhd/dhd_linux.c を修正。

/* Reschedule the watchdog */ if (dhd->wd_timer_valid){ mod_timer(&dhd->timer, jiffies + msecs_to_jiffies(dhd_watchdog_ms) - min(msecs_to_jiffies(dhd_watchdog_ms), time_lapse)); DHD_GENERAL_UNLOCK(&dhd->pub, flags); } } } else { break; }

エラー #5
/home/nishi/Linux_for_Tegra/source/public/kernel/nvidia/drivers/net/wireless/realtek/rtl8812au/core/rtw_mlme.c: In function 'rtw_drv_scan_by_self': /home/nishi/Linux_for_Tegra/source/public/kernel/nvidia/drivers/net/wireless/realtek/rtl8812au/core/rtw_mlme.c:3196:17: error: this 'else' clause does not guard... [-Werror=misleading-indentation] 3196 | else | ^~~~

home/nishi/Linux_for_Tegra/source/public/kernel/nvidia/drivers/net/wireless/realtek/rtl8812au/core/rtw_mlme.c を修正。

if( ssc_chk == SS_DENY_BUSY_TRAFFIC) { #ifdef CONFIG_LAYER2_ROAMING if (rtw_chk_roam_flags(padapter, RTW_ROAM_ACTIVE) && pmlmepriv->need_to_roam == _TRUE){ RTW_INFO(FUNC_ADPT_FMT" need to roam, don't care BusyTraffic\n", FUNC_ADPT_ARG(padapter)); } else{ RTW_INFO(FUNC_ADPT_FMT" exit BusyTraffic\n", FUNC_ADPT_ARG(padapter)); goto exit; } #else RTW_INFO(FUNC_ADPT_FMT" exit BusyTraffic\n", FUNC_ADPT_ARG(padapter)); goto exit; #endif } else if (ssc_chk != SS_ALLOW) goto exit;

なんか、きりがないから、このへんにしておくか?

どうやら、 -Wall または、-Wmisleading-indentation オプションが問題みたいだ。

grep -rnH "\-Wall" ./

./Linux_for_Tegra/source/public/kernel/nvidia/drivers/net/wireless/bcmdhd_pcie/Makefile:6:DHDCFLAGS += -Wall -Wstrict-prototypes -Dlinux -DLINUX -DBCMDRIVER \
./Linux_for_Tegra/source/public/kernel/nvidia/drivers/net/wireless/realtek/rtl8812au/Makefile:4:#EXTRA_CFLAGS += -Wall
./Linux_for_Tegra/source/public/kernel/nvidia/drivers/net/wireless/realtek/rtl8821cu/Makefile:4:#EXTRA_CFLAGS += -Wall
./Linux_for_Tegra/source/public/kernel/nvidia/drivers/net/wireless/realtek/rtl8822bu/Makefile:4:#EXTRA_CFLAGS += -Wall
./Linux_for_Tegra/source/public/kernel/nvidia/drivers/net/wireless/realtek/rtl8821au/Makefile:4:#EXTRA_CFLAGS += -Wall
./Linux_for_Tegra/source/public/kernel/nvidia/drivers/net/wireless/realtek/rtl8822ce/Makefile:4:#EXTRA_CFLAGS += -Wall
./Linux_for_Tegra/source/public/kernel/nvidia/drivers/net/wireless/realtek/rtl8814au/Makefile:4:#EXTRA_CFLAGS += -Wall
./Linux_for_Tegra/source/public/kernel/nvidia/drivers/net/wireless/bcmdhd/Makefile:10:DHDCFLAGS += -Wall -Wstrict-prototypes -Dlinux -DLINUX -DBCMDRIVER \
....

いっぱい出るが、とりあえず、

./Linux_for_Tegra/source/public/kernel/nvidia/drivers/net/wireless/bcmdhd_pcie/Makefile:6:DHDCFLAGS += -Wall -Wstrict-prototypes -Dlinux -DLINUX -DBCMDRIVER \
./Linux_for_Tegra/source/public/kernel/nvidia/drivers/net/wireless/bcmdhd/Makefile:10:DHDCFLAGS += -Wall -Wstrict-prototypes -Dlinux -DLINUX -DBCMDRIVER \
の部分だけ、+=-Wall を取るか?

最終エラー。

/home/nishi/Linux_for_Tegra/source/public/kernel/kernel-4.9/arch/arm64/boot/dts/Makefile:132: target 'arch/arm64/boot/dts/_ddot_' given more than once in the same rule /home/nishi/Linux_for_Tegra/source/public/kernel/kernel-4.9/arch/arm64/boot/dts/Makefile:132: target 'arch/arm64/boot/dts/_ddot_' given more than once in the same rule /home/nishi/Linux_for_Tegra/source/public/kernel/kernel-4.9/arch/arm64/boot/dts/Makefile:132: target 'arch/arm64/boot/dts/_ddot_' given more than once in the same rule make[2]: *** No rule to make target 'arch/arm64/boot/dts/..//hardware/nvidia/platform/t210/porg/kernel-dts/tegra210-p3448-0000-p3449-0000-a00.dts', needed by 'arch/arm64/boot/dts/_ddot_//hardware/nvidia/platform/t210/porg/kernel-dts/tegra210-p3448-0000-p3449-0000-a00.dtb'. Stop. make[2]: *** Waiting for unfinished jobs.... DTC arch/arm64/boot/dts/_ddot_ cc1: fatal error: arch/arm64/boot/dts/..: No such file or directory compilation terminated.

'arch/arm64/boot/dts/_ddot_' なんぞ無いから、検証は、ここ迄で終了。
Linux_for_Tegra/source/public/kernel/kernel-4.9/arch/arm64/boot/dts/Makefile:132: をなんとかすれば、
進むかもしれないが?