RDKBACCL-1935: Minimalize the kernel modules for BPI-R4 extender build

meta-rdk-mtk-bpir4/recipes-kernel/linux/files/rdkb_cfg/container_ext.cfg

@@ -0,0 +1,18 @@
+CONFIG_VETH=y
+########################################
+# REMOVING THE BELOW CFG FROM EXISTING #
+########################################
+#CONFIG_CGROUP_PIDS=y
+#CONFIG_CGROUP_DEVICE=y
+#CONFIG_MEMCG=y
+#CONFIG_BLK_CGROUP=y
+#CONFIG_NAMESPACES=y
+#CONFIG_UTS_NS=y
+#CONFIG_IPC_NS=y
+#CONFIG_USER_NS=y
+#CONFIG_PID_NS=y
+#CONFIG_NET_NS=y
+#CONFIG_NETFILTER_XT_TARGET_LOG=y
+#CONFIG_NETFILTER_XT_MATCH_PHYSDEV=y
+#CONFIG_CGROUP_FREEZER=y
+#######################################

meta-rdk-mtk-bpir4/recipes-kernel/linux/files/rdkb_cfg/iptables_nf_ext.cfg

@@ -0,0 +1,20 @@
+CONFIG_NF_CONNTRACK_TFTP=y
+CONFIG_NETFILTER_XT_TARGET_CT=y
+#==============================#
+#  Removing below kernel mod   #
+#==============================#  
+#CONFIG_USB_NET_QMI_WWAN=y
+#CONFIG_BT_HCIBTUSB=y
+#CONFIG_BT_HCIBTUSB_RTL=y
+#CONFIG_BT_INTEL=y
+#CONFIG_USB_ACM=y
+#CONFIG_TUN=y
+#CONFIG_BT_HCIUART=y
+#CONFIG_BT_HCIUART_SERDEV=y
+#CONFIG_BT_HCIUART_BCM=y
+#CONFIG_BT_HCIUART_QCA=y
+#CONFIG_BT_HCIUART_BCSP=y
+#CONFIG_BT_HCIUART_H4=y
+#CONFIG_IEEE802154=y
+#CONFIG_MAC802154=y
+#==============================#

meta-rdk-mtk-bpir4/recipes-kernel/linux/files/rdkb_cfg/kernel_6_6_ext.cfg

@@ -0,0 +1,25 @@
+CONFIG_USB=y
+CONFIG_USB_COMMON=y
+CONFIG_USB_STORAGE=y
+CONFIG_USB_SUPPORT=y
+CONFIG_USB_NET_DRIVERS=y
+CONFIG_USB_USBNET=y
+CONFIG_USB_XHCI_HCD=y
+CONFIG_USB_XHCI_MTK=y
+CONFIG_MTD_UBI=n
+CONFIG_I2C_MUX=y
+CONFIG_I2C_MUX_PCA954x=y
+CONFIG_SFP=y
+CONFIG_BLK_DEV_NVME=y
+CONFIG_NVME_FC=y
+CONFIG_NVME_TARGET=y
+CONFIG_NVME_TCP=y
+########################################
+# REMOVING THE BELOW CFG FROM EXISTING #
+########################################
+#CONFIG_BT=y
+#CONFIG_USB_NET_AX88179_178A=y
+#CONFIG_USB_RTL8152=y
+#CONFIG_SCHEDSTATS=y
+#CONFIG_USB_UAS=y
+########################################

meta-rdk-mtk-bpir4/recipes-kernel/linux/files/rdkb_cfg/kernel_v6_ext.cfg

@@ -0,0 +1,67 @@
+CONFIG_USB=y
+CONFIG_USB_COMMON=y
+CONFIG_USB_STORAGE=y
+CONFIG_USB_SUPPORT=y
+CONFIG_USB_NET_DRIVERS=y
+CONFIG_USB_USBNET=y
+CONFIG_USB_XHCI_HCD=y
+CONFIG_USB_XHCI_MTK=y
+CONFIG_MTD_UBI=n
+CONFIG_I2C_MUX=y
+CONFIG_I2C_MUX_PCA954x=y
+CONFIG_SFP=y
+CONFIG_BLK_DEV_NVME=y
+CONFIG_NVME_FC=y
+CONFIG_NVME_TARGET=y
+# HW RNG: renamed from HW_RANDOM_MTK to HW_RANDOM_MTK_V2 in 6.12 
+CONFIG_HW_RANDOM_MTK_V2=y
+# Scheduler: renamed from SCHED_THERMAL_PRESSURE in 6.12
+CONFIG_SCHED_HW_PRESSURE=y
+#New Airoha AN8811HB PHY (replaces EN8811H driver in 6.12) 
+CONFIG_AIR_AN8811HB_PHY=y
+# MT7988 PCIe PHY — now requires explicit enable in 6.12 
+CONFIG_PHY_MTK_PCIE=y
+# MT7988 CCI dynamic frequency scaling
+CONFIG_PM_DEVFREQ=y
+CONFIG_ARM_MEDIATEK_CCI_DEVFREQ=y
+CONFIG_DEVFREQ_GOV_PASSIVE=y
+CONFIG_PM_DEVFREQ_EVENT=y
+# MTD: MSTC boot partition split (6.12 MT7988 BSP) 
+CONFIG_MTD_SPLIT_MSTC_BOOT=y
+# Security: SECCOMP now a separate symbol in 6.12 (was implicit) 
+CONFIG_SECCOMP=y
+CONFIG_SECCOMP_FILTER=y
+# Stack protection: per-task canary (ARM64 feature in 6.12)
+CONFIG_STACKPROTECTOR=y
+CONFIG_STACKPROTECTOR_PER_TASK=y 
+# FUSE: required for container overlayfs rootfs (DAC/Dobby stack) 
+CONFIG_FUSE_FS=y
+CONFIG_FS_STACK=y
+# CFS bandwidth: enables CPU quota for AiMLOps inference containers
+CONFIG_CFS_BANDWIDTH=y
+CONFIG_GROUP_SCHED_WEIGHT=y
+# U-Boot env NVMEM layout (6.12 feature — useful for boot param access) 
+CONFIG_NVMEM_LAYOUT_U_BOOT_ENV=y
+# MTK Device APC (bus access control, security hardening)
+CONFIG_MTK_DEVAPC=y
+# AS21XXX PHY support (new in 6.12 BSP)
+CONFIG_AS21XXX_PHY=y
+# PCIE ASPM policy: review if EM05-G cellular latency is affected
+# Default in 6.12 is POWER_SUPERSAVE; uncomment to restore PERFORMANCE: 
+#CONFIG_PCIEASPM_PERFORMANCE=y
+# CONFIG_PCIEASPM_POWER_SUPERSAVE is not set
+CONFIG_MEMCG_V1=y
+CONFIG_CPUSETS_V1=y
+
+########################################
+# REMOVING THE BELOW CFG FROM EXISTING #
+########################################
+#CONFIG_USB_UAS=y
+#CONFIG_BT=y
+#CONFIG_USB_NET_AX88179_178A=y
+#CONFIG_USB_RTL8152=y
+#CONFIG_NVME_TCP=y
+#CONFIG_AIR_AN8811HB_PHY_DEBUGFS=y 
+# IIO: Industrial I/O framework (enabled in 6.12 — enables sensor subsystem)
+#CONFIG_IIO=y
+########################################

meta-rdk-mtk-bpir4/recipes-kernel/linux/linux-mediatek_%.bbappend

@@ -3,22 +3,21 @@ FILESEXTRAPATHS:prepend := "${THISDIR}/files:"
 SRC_URI += "file://0001-add-support-for-port-triggering.patch"
 SRC_URI += "${@bb.utils.contains('DISTRO_FEATURES','kernel6-12','file://BPI-resolving-port-triggering-errors_6_12.patch',bb.utils.contains('DISTRO_FEATURES','kernel6-6','file://BPI-resolving-port-triggering-errors_6_6.patch','file://BPI-resolving-port-triggering-errors.patch',d), d)}"
 SRC_URI:append = " \
-    file://rdkb_cfg/iptables_nf.cfg \
-    file://rdkb_cfg/bridge_mode.cfg \
+    ${@bb.utils.contains('DISTRO_FEATURES', 'em_extender', ' file://rdkb_cfg/iptables_nf_ext.cfg', ' file://rdkb_cfg/iptables_nf.cfg', d)} \
+    ${@bb.utils.contains('DISTRO_FEATURES', 'em_extender', ' ', ' file://rdkb_cfg/bridge_mode.cfg', d)} \
     file://rdkb_cfg/coredump.cfg \
     file://rdkb_cfg/ip6tables_nf.cfg \
     ${@bb.utils.contains_any('DISTRO_FEATURES','kernel6-12 kernel6-6', ' file://netfilter_v6.cfg', ' file://netfilter.cfg', d)}  \
-    ${@bb.utils.contains('DISTRO_FEATURES','kernel6-12', ' file://rdkb_cfg/kernel_v6.cfg',bb.utils.contains('DISTRO_FEATURES','kernel6-6',' file://rdkb_cfg/kernel_6_6.cfg', '',d), d)}  \
-    file://rdkb_cfg/container.cfg \
+    ${@bb.utils.contains('DISTRO_FEATURES', 'kernel6-12', bb.utils.contains('DISTRO_FEATURES', 'em_extender', ' file://rdkb_cfg/kernel_v6_ext.cfg', ' file://rdkb_cfg/kernel_v6.cfg', d), bb.utils.contains('DISTRO_FEATURES', 'kernel6-6', bb.utils.contains('DISTRO_FEATURES', 'em_extender', ' file://rdkb_cfg/kernel_6_6_ext.cfg', ' file://rdkb_cfg/kernel_6_6.cfg', d), '', d), d)} \
+    ${@bb.utils.contains('DISTRO_FEATURES', 'em_extender', ' file://rdkb_cfg/container_ext.cfg', ' file://rdkb_cfg/container.cfg', d)} \
     ${@bb.utils.contains('DISTRO_FEATURES','sdmmc',bb.utils.contains_any('DISTRO_FEATURES','kernel6-12 kernel6-6', ' file://rdkb_cfg/sdmmc_v6.cfg', ' file://rdkb_cfg/sdmmc.cfg',d), '', d)} \
     file://rdkb_cfg/wps_key.cfg \
     ${@bb.utils.contains('DISTRO_FEATURES','kernel6-6', ' file://enable_sdcard_6_6.patch;apply=no', '', d)} \
     ${@bb.utils.contains('DISTRO_FEATURES','kernel6-6', ' file://bluetooth_6_6.patch;apply=no', '', d)} \
     ${@bb.utils.contains('DISTRO_FEATURES','kernel6-12', ' file://enable_sdcard_v6.patch;apply=no', '', d)} \
     ${@bb.utils.contains('DISTRO_FEATURES','kernel6-12', ' file://bluetooth_v6.patch;apply=no', '', d)} \
 "
-SRC_URI:append:mt7988 = "${@bb.utils.contains('DISTRO_FEATURES', 'cellular_hybrid_support', ' file://rdkb_cfg/rdkb-usb.cfg', '', d)}"
-
+SRC_URI:append:mt7988 = "${@bb.utils.contains('DISTRO_FEATURES', 'cellular_hybrid_support', bb.utils.contains('DISTRO_FEATURES','em_extender', ' ', ' file://rdkb_cfg/rdkb-usb.cfg', d), '', d)}"
 CMDLINE:append = " cgroup_enable=cpuset cgroup_enable=memory cgroup_memory=1 "
 
 do_filogic_patches:append() {