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nixpkgs/pkgs/os-specific/linux/kernel/linux-rt-5.11.nix
Dominik Xaver Hörl 436f61c878 nixos/boot: properly override the kernel in boot.kernelPatches
Previously the code took the kernelPatches of the final derivation, which
might or might not be what was passed to the derivation in the original call.
The previous behaviour caused various hacks to become neccessary to avoid duplicates in kernelPatches.
2021-05-31 12:10:19 +02:00

46 lines
1.6 KiB
Nix

{ lib, buildLinux, fetchurl
, kernelPatches ? [ ]
, structuredExtraConfig ? {}
, extraMeta ? {}
, argsOverride ? {}
, ... } @ args:
let
version = "5.11.4-rt11"; # updated by ./update-rt.sh
branch = lib.versions.majorMinor version;
kversion = builtins.elemAt (lib.splitString "-" version) 0;
in buildLinux (args // {
inherit version;
# modDirVersion needs a patch number, change X.Y-rtZ to X.Y.0-rtZ.
modDirVersion = if (builtins.match "[^.]*[.][^.]*-.*" version) == null then version
else lib.replaceStrings ["-"] [".0-"] version;
src = fetchurl {
url = "mirror://kernel/linux/kernel/v5.x/linux-${kversion}.tar.xz";
sha256 = "1i8dfw83ndaylwji7lazfckk113plvnz7kh1yppbfg35r6przrc8";
};
kernelPatches = let rt-patch = {
name = "rt";
patch = fetchurl {
url = "mirror://kernel/linux/kernel/projects/rt/${branch}/older/patch-${version}.patch.xz";
sha256 = "1az6cn9jj3bnjgwzzrjy1adnrnn06p2vzsnc1iib4xhs0sfr27hc";
};
}; in [ rt-patch ] ++ kernelPatches;
structuredExtraConfig = with lib.kernel; {
PREEMPT_RT = yes;
# Fix error: unused option: PREEMPT_RT.
EXPERT = yes; # PREEMPT_RT depends on it (in kernel/Kconfig.preempt)
# Fix error: option not set correctly: PREEMPT_VOLUNTARY (wanted 'y', got 'n').
PREEMPT_VOLUNTARY = lib.mkForce no; # PREEMPT_RT deselects it.
# Fix error: unused option: RT_GROUP_SCHED.
RT_GROUP_SCHED = lib.mkForce (option no); # Removed by sched-disable-rt-group-sched-on-rt.patch.
} // structuredExtraConfig;
extraMeta = extraMeta // {
inherit branch;
};
} // argsOverride)