From 4f8875127386ca3ad78c8218cb8c115c3ff6163f Mon Sep 17 00:00:00 2001
From: Michal Hocko <mhocko@suse.com>
Date: Apr 03 2024 14:14:52 +0000
Subject: - scripts/check-kernel-fix: document LINUX_GIT requirement

- scripts/common-functions:

---

diff --git a/scripts/check-kernel-fix b/scripts/check-kernel-fix
index fe099f3..64f2eb0 100755
--- a/scripts/check-kernel-fix
+++ b/scripts/check-kernel-fix
@@ -10,6 +10,7 @@ usage()
     echo "Expect upstream kernel tree sha or CVE number as the parameter."
     echo "The script checks whether the commit is already in the upstream"
     echo "baseline or backported in kernel-source tree."
+    echo "Requires LINUX_GIT pointing to Linus git tree clone."
     echo
     echo "If backported, checks for CVE/bsc references and recommends adding these"
     echo "if they are missing. (Requires VULNS_GIT pointing to"
diff --git a/scripts/common-functions b/scripts/common-functions
index 2cd4a78..e13a41c 100644
--- a/scripts/common-functions
+++ b/scripts/common-functions
@@ -201,7 +201,7 @@ sha_in_upstream()
     local upstream_git=${2:-$LINUX_GIT}
 
     [ -z "$sha" ] && fail "sha_in_upstream: No sha provided"
-    [ -z "$upstream_git" ] && fail "sha_in_upstream: No upstream git tree"
+    [ -z "$upstream_git" ] && fail "sha_in_upstream: No upstream git tree. LINUX_GIT should point to Linus git tree clone."
 
     sha_merged_in_upstream_tag $sha origin/master $upstream_git
 }