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resource, kunit: stop selecting GET_FREE_REGION

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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: 99185c10d5 ("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>
This commit is contained in:
Karl Mehltretter 2026-09-26 02:26:51 +02:00 committed by Andrew Morton
parent 67b509c23f
commit 7c3f4d699f
2 changed files with 3 additions and 1 deletions
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3
kernel/resource_kunit.c
View File

@ -225,6 +225,9 @@ static void resource_test_region_intersects(struct kunit *test)
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");

1
lib/Kconfig.debug
View File

@ -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.