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kernel: strip out some things I won't use

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This commit is contained in:
Simon Gardling
2026-04-14 13:24:52 -04:00
parent abb762604d
commit d5bfbf83be
1 changed files with 60 additions and 0 deletions
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60
system/common.nix
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@@ -100,6 +100,66 @@
# kernel options
boot = {
# disable legacy subsystems neither host will ever use
kernelPatches = [
{
name = "disable-legacy-subsystems";
patch = null;
structuredExtraConfig = with lib.kernel; {
# ancient bus/card standards
PCMCIA = lib.mkForce no;
PCCARD = lib.mkForce no;
PARPORT = lib.mkForce no;
GAMEPORT = lib.mkForce no;
FIREWIRE = lib.mkForce no;
AGP = lib.mkForce no;
# legacy networking
ATM = lib.mkForce no;
FDDI = lib.mkForce no;
ISDN = lib.mkForce no;
CAN = lib.mkForce no;
NFC = lib.mkForce no;
INFINIBAND = lib.mkForce no;
# amateur radio (HAMRADIO is the umbrella but these are separate symbols)
HAMRADIO = lib.mkForce no;
AX25 = lib.mkForce no;
NETROM = lib.mkForce no;
ROSE = lib.mkForce no;
# dead protocols
PHONET = lib.mkForce no;
IEEE802154 = lib.mkForce no;
"6LOWPAN" = lib.mkForce no;
# tv tuners / digital video broadcasting
MEDIA_ANALOG_TV_SUPPORT = lib.mkForce no;
MEDIA_DIGITAL_TV_SUPPORT = lib.mkForce no;
DVB_CORE = lib.mkForce no;
# hypervisor guest support (bare metal only)
HYPERV = lib.mkForce no;
VMWARE_VMCI = lib.mkForce no;
# staging drivers (experimental/unmaintained)
STAGING = lib.mkForce no;
# misc legacy
MOST = lib.mkForce no;
PPDEV = lib.mkForce no;
PHANTOM = lib.mkForce no;
W1 = lib.mkForce no;
X86_ANDROID_TABLETS = lib.mkForce no;
# deprecated userland compat
SGETMASK_SYSCALL = lib.mkForce no;
UID16 = lib.mkForce no;
X86_X32_ABI = lib.mkForce no;
};
}
];
# aes_generic is built-in as of linux 7.0, no longer a loadable module
initrd.luks.cryptoModules = lib.mkForce (
lib.filter (m: m != "aes_generic") options.boot.initrd.luks.cryptoModules.default