From ec23b276ae29b802482f2fc1bc9eb41f19962c5c Mon Sep 17 00:00:00 2001
From: Coiby Xu <coxu@redhat.com>
Date: Thu, 9 Oct 2025 16:47:16 +0800
Subject: [PATCH] Add a helper function to get uuid by MAJ:MIN

Resolves: https://issues.redhat.com/browse/RHEL-104940
Conflict: None

commit f2c18c4934777cf55a5ea9359c8423adb8f1388b
Author: Coiby Xu <coxu@redhat.com>
Date:   Mon Mar 4 17:18:46 2024 +0800

    Add a helper function to get uuid by MAJ:MIN

    This helper function will be used for kdump LUKS support.

    Signed-off-by: Coiby Xu <coxu@redhat.com>

Signed-off-by: Coiby Xu <coxu@redhat.com>
---
 kdump-lib.sh | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/kdump-lib.sh b/kdump-lib.sh
index f31fc3e..5a5d08c 100755
--- a/kdump-lib.sh
+++ b/kdump-lib.sh
@@ -1230,6 +1230,11 @@ get_luks_crypt_dev()
 	done
 }
 
+maj_min_to_uuid()
+{
+	lsblk -no uuid,MAJ:MIN | awk -v dev="$1" 'NF==2 && $2 == dev {print $1}'
+}
+
 # kdump_get_maj_min <device>
 # Prints the major and minor of a device node.
 # Example: