From 85c7629345e6c9e82affa7a8748dc7110edb4ae7 Mon Sep 17 00:00:00 2001
From: Zdenek Kabelac <zkabelac@redhat.com>
Date: Sat, 14 Oct 2023 01:02:09 +0200
Subject: [PATCH] libdm: versionion symbol for enhanced dm_task_run

When new app links with current dm_task_run() that propagates ioctl()
errno - ensure it will not be usable with older version without this
supported feature.
---
 libdm/.exported_symbols.DM_1_02_197 |  1 +
 libdm/ioctl/libdm-iface.c           | 16 +++++++++++++++-
 2 files changed, 16 insertions(+), 1 deletion(-)
 create mode 100644 libdm/.exported_symbols.DM_1_02_197

diff --git a/libdm/.exported_symbols.DM_1_02_197 b/libdm/.exported_symbols.DM_1_02_197
new file mode 100644
index 000000000..e5f0682a0
--- /dev/null
+++ b/libdm/.exported_symbols.DM_1_02_197
@@ -0,0 +1 @@
+dm_task_run
diff --git a/libdm/ioctl/libdm-iface.c b/libdm/ioctl/libdm-iface.c
index ac5fb3add..7e1372325 100644
--- a/libdm/ioctl/libdm-iface.c
+++ b/libdm/ioctl/libdm-iface.c
@@ -2055,7 +2055,21 @@ int dm_task_get_errno(struct dm_task *dmt)
 	return dmt->ioctl_errno;
 }
 
-int dm_task_run(struct dm_task *dmt)
+#if defined(GNU_SYMVER)
+/*
+ * Enforce new version 1_02_197 of dm_task_run() that propagates
+ * ioctl() errno is being linked to app.
+ */
+DM_EXPORT_SYMBOL_BASE(dm_task_run)
+int dm_task_run_base(struct dm_task *dmt);
+int dm_task_run_base(struct dm_task *dmt)
+{
+	return dm_task_run(dmt);
+}
+#endif
+
+DM_EXPORT_NEW_SYMBOL(int, dm_task_run, 1_02_197)
+	(struct dm_task *dmt)
 {
 	struct dm_ioctl *dmi;
 	unsigned command;