+ resource-kunit-stop-selecting-get_free_region.patch added to mm-nonmm-unstable branch

+ resource-kunit-stop-selecting-get_free_region.patch added to mm-nonmm-unstable branch

[Andrew Morton]

The patch titled
     Subject: resource, kunit: stop selecting GET_FREE_REGION
has been added to the -mm mm-nonmm-unstable branch.  Its filename is
     resource-kunit-stop-selecting-get_free_region.patch

This patch will shortly appear at
     https://git.kernel.org/pub/scm/linux/kernel/git/akpm/25-new.git/tree/patches/resource-kunit-stop-selecting-get_free_region.patch

This patch will later appear in the mm-nonmm-unstable branch at
    git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm

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------------------------------------------------------
From: Karl Mehltretter <kmehltretter@gmail.com>
Subject: resource, kunit: stop selecting GET_FREE_REGION
Date: Sat, 26 Sep 2026 02:26:51 +0200

RESOURCE_KUNIT_TEST selects GET_FREE_REGION even when no other option
needs it. Remove the selection to follow the dependency rule in
Documentation/dev-tools/kunit/style.rst.

Skip resource_test_region_intersects() when GET_FREE_REGION is disabled.
GET_FREE_REGION has no prompt, so configurations without a production
consumer cannot enable it. Most configurations will therefore skip this
case; this is intentional. The union and intersection tests remain
available.

Since kunit_skip() does not return, the compiler drops the reference to
the unavailable alloc_free_mem_region(), as in the CONFIG_OF_ADDRESS
check in drivers/of/of_test.c.

Link: https://lore.kernel.org/20260926002651.87267-1-kmehltretter@gmail.com
Fixes: 99185c10d5d9 ("resource, kunit: add test case for region_intersects()")
Signed-off-by: Karl Mehltretter <kmehltretter@gmail.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Reviewed-by: Bradley Morgan <brads@mainlining.org>
Tested-by: Bradley Morgan <brads@mainlining.org> # Power10
Assisted-by: LLM
Cc: Ying Huang <huang.ying.caritas@gmail.com>
Cc: Geert Uytterhoeven <geert@linux-m68k.org>
Cc: Brendan Higgins <brendan.higgins@linux.dev>
Cc: David Gow <david@davidgow.net>
Cc: Rae Moar <raemoar63@gmail.com>
Cc: Andy Shevchenko <andriy.shevchenko@linux.intel.com>

---

 kernel/resource_kunit.c |    3 +++
 lib/Kconfig.debug       |    1 -
 2 files changed, 3 insertions(+), 1 deletion(-)

--- a/kernel/resource_kunit.c~resource-kunit-stop-selecting-get_free_region
+++ a/kernel/resource_kunit.c
@@ -225,6 +225,9 @@ static void resource_test_region_interse
 	struct resource *parent;
 	resource_size_t start;
 
+	if (!IS_ENABLED(CONFIG_GET_FREE_REGION))
+		kunit_skip(test, "CONFIG_GET_FREE_REGION is disabled");
+
 	/* Find an iomem_resource hole to hold test resources */
 	parent = alloc_free_mem_region(&iomem_resource, RES_TEST_TOTAL_SIZE, SZ_1M,
 				       "test resources");
--- a/lib/Kconfig.debug~resource-kunit-stop-selecting-get_free_region
+++ a/lib/Kconfig.debug
@@ -2776,7 +2776,6 @@ config RESOURCE_KUNIT_TEST
 	tristate "KUnit test for resource API" if !KUNIT_ALL_TESTS
 	depends on KUNIT
 	default KUNIT_ALL_TESTS
-	select GET_FREE_REGION
 	help
 	  This builds the resource API unit test.
 	  Tests the logic of API provided by resource.c and ioport.h.
_

Patches currently in -mm which might be from kmehltretter@gmail.com are

mm-damon-core-handle-uninitialized-damos_quota_goal-last_psi_total-fix.patch
docs-mm-ksm-use-the-renamed-ksm-structure-names.patch
mm-secretmem-fix-the-enable-parameter-description.patch
klist-avoid-accesses-after-waking-klist_remove.patch
squashfs-fix-fragment-index-table-sizing-overflow-on-32-bit.patch
squashfs-make-the-fragment-index-table-bounds-check-overflow-safe.patch
fork-honor-task_structs-declared-alignment.patch
ocfs2-cluster-hold-a-reference-on-the-heartbeat-thread.patch
resource-kunit-stop-selecting-get_free_region.patch