linux-kernel - [PATCH] mm: Add basic tests for lazy_mmu

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Message-ID: <20251217163812.2633648-2-kevin.brodsky@arm.com>
Date: Wed, 17 Dec 2025 16:38:12 +0000
From: Kevin Brodsky <kevin.brodsky@....com>
To: Andrew Morton <akpm@...ux-foundation.org>
Cc: linux-kernel@...r.kernel.org,
	Ryan Roberts <ryan.roberts@....com>,
	Ritesh Harjani <ritesh.list@...il.com>,
	linux-mm@...ck.org,
	linuxppc-dev@...ts.ozlabs.org,
	Kevin Brodsky <kevin.brodsky@....com>
Subject: [PATCH] mm: Add basic tests for lazy_mmu - fix for powerpc

Add MODULE_IMPORT_NS() for symbols referenced on powerpc.

Signed-off-by: Kevin Brodsky <kevin.brodsky@....com>
---

Andrew, please squash this into the last patch in the series
("mm: Add basic tests for lazy_mmu"). Thanks!
---
 mm/tests/lazy_mmu_mode_kunit.c | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/mm/tests/lazy_mmu_mode_kunit.c b/mm/tests/lazy_mmu_mode_kunit.c
index 2720eb995714..1c23456b467e 100644
--- a/mm/tests/lazy_mmu_mode_kunit.c
+++ b/mm/tests/lazy_mmu_mode_kunit.c
@@ -2,6 +2,9 @@
 #include <kunit/test.h>
 #include <linux/pgtable.h>
 
+/* For some symbols referenced by arch_{enter,leave}_lazy_mmu_mode on powerpc */
+MODULE_IMPORT_NS("EXPORTED_FOR_KUNIT_TESTING");
+
 static void expect_not_active(struct kunit *test)
 {
 	KUNIT_EXPECT_FALSE(test, is_lazy_mmu_mode_active());

base-commit: 8f0b4cce4481fb22653697cced8d0d04027cb1e8
-- 
2.51.2