MYN - 2021/09/08 12:13 / Linux 5.14

2021/09/08 12:13 / Linux 5.14

Linux 5.14 がでたので 5.13.13 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-514-features 参照．

+CONFIG_ACPI_MDIO=y
+CONFIG_FWNODE_MDIO=y
-CONFIG_FIXED_PHY=m
+CONFIG_FIXED_PHY=y

net: mdio: Add ACPI support code for mdio
net: mdiobus: Introduce fwnode_mdiobus_register_phy()

IEEE 802.3 の PHY management interface である MDIO 関連．このあたりの影響で手元では CONFIG_FIXED_PHY が y になった．
+CONFIG_ACPI_PRMT=y

ACPI: PRM: implement OperationRegion handler for the PlatformRtMechanism subtype

Platform Runtime Mechanism (PRM) 関連．

depends on EFI && X86_64 で default y
+CONFIG_ARCH_HAS_ZONE_DMA_SET=y

mm: generalize ZONE_[DMA|DMA32]
```
Selected by [y]:
- X86 [=y] && EXPERT [=y]
```
+CONFIG_ARCH_WANTS_NO_INSTR=y
+CONFIG_CC_HAS_NO_PROFILE_FN_ATTR=y

Kconfig: Introduce ARCH_WANTS_NO_INSTR and CC_HAS_NO_PROFILE_FN_ATTR

+CONFIG_ASN1=m

Selected by [m]:
- CIFS [=m] && NETWORK_FILESYSTEMS [=y] && INET [=y]

+CONFIG_HAVE_KVM_PM_NOTIFIER=y

kvm: add PM-notifier
+CONFIG_HUGETLB_PAGE_FREE_VMEMMAP=y

mm: hugetlb: introduce a new config HUGETLB_PAGE_FREE_VMEMMAP
+CONFIG_IOMMU_SVA_LIB=y

iommu/vt-d: Use iommu_sva_alloc(free)_pasid() helpers
+CONFIG_SECRETMEM=y

mm: introduce memfd_secret system call to create “secret” memory areas
+CONFIG_X86_PLATFORM_DRIVERS_INTEL=y

platform/x86: intel_skl_int3472: Move to intel/ subfolder
-CONFIG_CLKDEV_LOOKUP=y

clkdev: remove CONFIG_CLKDEV_LOOKUP

CONFIG_HAVE_CLK に統合．
-CONFIG_DRM_KMS_FB_HELPER=y

drm: Remove DRM_KMS_FB_HELPER Kconfig option

It’s only used by DRM_FBDEV_EMULATION, so inline it there.
-CONFIG_HAVE_IDE=y

ide: remove the legacy ide driver

The legay ide driver has been replace with libata starting in 2003 and has been scheduled for removal for a while.
-CONFIG_MAX_RAW_DEVS=256
-CONFIG_RAW_DRIVER=m

remove the raw driver

The raw driver used to provide direct unbuffered access to block devices before O_DIRECT was invented. It has been obsolete for more than a decade.
-CONFIG_NEED_MULTIPLE_NODES=y

mm: replace CONFIG_NEED_MULTIPLE_NODES with CONFIG_NUMA
-CONFIG_X86_RESERVE_LOW=64

x86/setup: Remove CONFIG_X86_RESERVE_LOW and reservelow= options
+CONFIG_AX88796B_PHY=m

net: usb/phy: asix: add support for ax88772A/C PHYs

手元では USB_NET_AX8817X で select されている．

bullseye の nvidia の以下の driver については https://gist.github.com/joanbm/144a965c36fc1dc0d1f1b9be3438a368 のパッチが必要．

nvidia-kernel-dkms についてはそのまま patch apply 可能，nvidia-legacy-390xx-kernel-dkms については以下ぐらい．

dev->pdev = pdev; 削除
current->state = TASK_INTERRUPTIBLE; を WRITE_ONCE(current->__state, TASK_INTERRUPTIBLE); に変更

参考: