nixpkgs/pkgs/os-specific/linux/systemd/0014-core-don-t-taint-on-unmerged-usr.patch

From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
From: oxalica <oxalicc@pm.me>
Date: Tue, 4 Oct 2022 09:18:07 +0800
Subject: [PATCH] core: don't taint on unmerged /usr

NixOS has very different approach towards /bin and /sbin - they don't
really exist (except for /bin/sh and /usr/bin/env, because these are used
heavily in shebangs around the world). The concept of merged or unmerged
usr doesn't really apply here at all, it's neither of the two.
Users don't execute things from /bin or /sbin, there's nothing else in
there. In all cases, systemd doesn't look things up from /usr/bin or /bin,
so showing the taint isn't really helpful.

See also: https://github.com/systemd/systemd/issues/24191
---
 src/core/taint.c | 8 --------
 1 file changed, 8 deletions(-)

diff --git a/src/core/taint.c b/src/core/taint.c
index 969b37f209..de64e8f1f9 100644
--- a/src/core/taint.c
+++ b/src/core/taint.c
@@ -41,14 +41,6 @@ char* taint_string(void) {
 
         _cleanup_free_ char *bin = NULL, *usr_sbin = NULL, *var_run = NULL;
 
-        if (readlink_malloc("/bin", &bin) < 0 || !PATH_IN_SET(bin, "usr/bin", "/usr/bin"))
-                stage[n++] = "unmerged-usr";
-
-        /* Note that the check is different from default_PATH(), as we want to taint on uncanonical symlinks
-         * too. */
-        if (readlink_malloc("/usr/sbin", &usr_sbin) < 0 || !PATH_IN_SET(usr_sbin, "bin", "/usr/bin"))
-                stage[n++] = "unmerged-bin";
-
         if (readlink_malloc("/var/run", &var_run) < 0 || !PATH_IN_SET(var_run, "../run", "/run"))
                 stage[n++] = "var-run-bad";