linux-kernel - [PATCH] lib/test_kho: Check if KHO is enabled

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Message-ID: <20251106220635.2608494-1-pasha.tatashin@soleen.com>
Date: Thu,  6 Nov 2025 17:06:35 -0500
From: Pasha Tatashin <pasha.tatashin@...een.com>
To: akpm@...ux-foundation.org,
	pasha.tatashin@...een.com,
	rppt@...nel.org,
	graf@...zon.com,
	linux-kernel@...r.kernel.org,
	kexec@...ts.infradead.org,
	linux-mm@...ck.org,
	pratyush@...nel.org
Subject: [PATCH] lib/test_kho: Check if KHO is enabled

We must check whether KHO is enabled prior to issuing KHO commands,
otherwise KHO internal data structures are not initialized.

Fixes: b753522bed0b ("kho: add test for kexec handover")

Reported-by: kernel test robot <oliver.sang@...el.com>
Closes: https://lore.kernel.org/oe-lkp/202511061629.e242724-lkp@intel.com

Signed-off-by: Pasha Tatashin <pasha.tatashin@...een.com>
---
 lib/test_kho.c | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/lib/test_kho.c b/lib/test_kho.c
index 025ea251a186..85b60d87a50a 100644
--- a/lib/test_kho.c
+++ b/lib/test_kho.c
@@ -315,6 +315,9 @@ static int __init kho_test_init(void)
 	phys_addr_t fdt_phys;
 	int err;
 
+	if (!kho_is_enabled())
+		return 0;
+
 	err = kho_retrieve_subtree(KHO_TEST_FDT, &fdt_phys);
 	if (!err)
 		return kho_test_restore(fdt_phys);
-- 
2.51.2.1041.gc1ab5b90ca-goog