Linux 5.9-rc1 がでたので(既に rc4 になってるけど)，5.8.8 から .configがどう変更されるのか見てみた．以下 - は削除されたもの，+ は追加されたもの．x86_64．New features 等は https://www.phoronix.com/scan.php?page=article&item=linux-59-features 参照．
追加
-
+CONFIG_RD_ZSTD=y
+CONFIG_DECOMPRESS_ZSTD=y
CONFIG_ZSTD_DECOMPRESS: m->yusr: Add support for zstd compressed initramfs
使わないので
nにして，CONFIG_ZSTD_DECOMPRESS もmのままに． -
+CONFIG_HAVE_KERNEL_ZSTD=y -
+CONFIG_DEBUG_FS_ALLOW_ALL=y -
+CONFIG_DMA_OPS=y -
+CONFIG_GENERIC_ENTRY=y -
+CONFIG_KVM_XFER_TO_GUEST_WORK=yentry: Provide infrastructure for work before transitioning to guest mode
-
+CONFIG_HAVE_POSIX_CPU_TIMERS_TASK_WORK=yposix-cpu-timers: Provide mechanisms to defer timer handling to task_work
-
+CONFIG_LEDS_TRIGGER_AUDIO=m
+CONFIG_SND_HDA_GENERIC_LEDS=yALSA: hda: generic: Add a helper for mic-mute LED with LED classdev
-
+CONFIG_MDIO_DEVRES=y -
+CONFIG_POSIX_CPU_TIMERS_TASK_WORK=yposix-cpu-timers: Provide mechanisms to defer timer handling to task_work
-
+CONFIG_TRACE_IRQFLAGS_NMI_SUPPORT=y -
+CONFIG_WLAN_VENDOR_MICROCHIP=ywilc1000: move wilc driver out of staging
nにする． -
+CONFIG_X86_HV_CALLBACK_VECTOR=yKVM: x86: Switch KVM guest to using interrupts for page ready APF delivery
KVM_GUESTでselectされる．
削除
-
-CONFIG_CC_HAS_STACKPROTECTOR_NONE=y -
-CONFIG_HAVE_COPY_THREAD_TLS=y -
-CONFIG_HAVE_MEMORY_PRESENT=y -
-CONFIG_KASAN_STACK=1kasan: improve and simplify Kconfig.kasan
KASANがnだと現れなくなった．