From a716a45b198d57f456a016acc418bc0e41cd7559 Mon Sep 17 00:00:00 2001
From: Faye <duxovni@duxovni.org>
Date: Mon, 21 Feb 2022 16:26:23 -0500
Subject: [PATCH 1/2] linux-rt: Fix incorrect sorting of kernel version numbers
 when determining latest version

When determining the latest linux-rt kernel version to update to, the list of filenames that `update-rt.sh` fetches from upstream is sorted lexicographically, while `update-rt.sh` assumes it's sorted in version order.  As a result, for example, 5.10.78 is considered newer than 5.10.100.  This change applies `sort --version-sort` to the extracted version numbers to properly identify the latest version.
---
 pkgs/os-specific/linux/kernel/update-rt.sh | 1 +
 1 file changed, 1 insertion(+)

diff --git a/pkgs/os-specific/linux/kernel/update-rt.sh b/pkgs/os-specific/linux/kernel/update-rt.sh
index ccb017933420..a9e0577fae92 100755
--- a/pkgs/os-specific/linux/kernel/update-rt.sh
+++ b/pkgs/os-specific/linux/kernel/update-rt.sh
@@ -38,6 +38,7 @@ latest-rt-version() {
     curl -sL "$mirror/projects/rt/$branch/sha256sums.asc" |
         sed -ne '/.patch.xz/ { s/.*patch-\(.*\).patch.xz/\1/p}' |
         grep -v '\-rc' |
+        sort --version-sort |
         tail -n 1
 }
 

From acf78131f7eecda95bc426b781835b644db42233 Mon Sep 17 00:00:00 2001
From: Faye <duxovni@duxovni.org>
Date: Mon, 21 Feb 2022 16:26:56 -0500
Subject: [PATCH 2/2] linux-rt_5_10: 5.10.78-rt55 -> 5.10.100-rt62

---
 pkgs/os-specific/linux/kernel/linux-rt-5.10.nix | 6 +++---
 1 file changed, 3 insertions(+), 3 deletions(-)

diff --git a/pkgs/os-specific/linux/kernel/linux-rt-5.10.nix b/pkgs/os-specific/linux/kernel/linux-rt-5.10.nix
index c8d42ddda746..70be0e58ebce 100644
--- a/pkgs/os-specific/linux/kernel/linux-rt-5.10.nix
+++ b/pkgs/os-specific/linux/kernel/linux-rt-5.10.nix
@@ -6,7 +6,7 @@
 , ... } @ args:
 
 let
-  version = "5.10.78-rt55"; # updated by ./update-rt.sh
+  version = "5.10.100-rt62"; # updated by ./update-rt.sh
   branch = lib.versions.majorMinor version;
   kversion = builtins.elemAt (lib.splitString "-" version) 0;
 in buildLinux (args // {
@@ -18,14 +18,14 @@ in buildLinux (args // {
 
   src = fetchurl {
     url = "mirror://kernel/linux/kernel/v5.x/linux-${kversion}.tar.xz";
-    sha256 = "03q5lrv8gr9hnm7984pxi9kwsvxrn21qwykj60amisi2wac6r05y";
+    sha256 = "16892wnfkdpqy3v4xmdzlqn5zlfrgz9wqh6vadnx58xnr6pnasfm";
   };
 
   kernelPatches = let rt-patch = {
     name = "rt";
     patch = fetchurl {
       url = "mirror://kernel/linux/kernel/projects/rt/${branch}/older/patch-${version}.patch.xz";
-      sha256 = "1wcw682r238qi5jgn5zk9m6j2506p9ypfax13bzhjfyjzz3h98kp";
+      sha256 = "1wimp4ckaqp5cfvkf50gv3s5biyr0sjifz4faw23m07ciydm15k0";
     };
   }; in [ rt-patch ] ++ kernelPatches;