| From d6e9a3fb3a63360f830e1ad72f33ff18bd6f5909 Mon Sep 17 00:00:00 2001 |
| From: Sasha Levin <sashal@kernel.org> |
| Date: Fri, 22 Aug 2025 11:59:05 -0700 |
| Subject: genirq/test: Depend on SPARSE_IRQ |
| |
| From: Brian Norris <briannorris@chromium.org> |
| |
| [ Upstream commit 0c888bc86d672e551ce5c58b891c8b44f8967643 ] |
| |
| Some architectures have a static interrupt layout, with a limited number of |
| interrupts. Without SPARSE_IRQ, the test may not be able to allocate any |
| fake interrupts, and the test will fail. (This occurs on ARCH=m68k, for |
| example.) |
| |
| Additionally, managed-affinity is only supported with CONFIG_SPARSE_IRQ=y, |
| so irq_shutdown_depth_test() and irq_cpuhotplug_test() would fail without |
| it. |
| |
| Add a 'SPARSE_IRQ' dependency to avoid these problems. |
| |
| Many architectures 'select SPARSE_IRQ', so this is easy to miss. |
| |
| Notably, this also excludes ARCH=um from running any of these tests, even |
| though some of them might work. |
| |
| Fixes: 66067c3c8a1e ("genirq: Add kunit tests for depth counts") |
| Reported-by: Guenter Roeck <linux@roeck-us.net> |
| Signed-off-by: Brian Norris <briannorris@chromium.org> |
| Signed-off-by: Thomas Gleixner <tglx@linutronix.de> |
| Tested-by: Guenter Roeck <linux@roeck-us.net> |
| Reviewed-by: David Gow <davidgow@google.com> |
| Link: https://lore.kernel.org/all/20250822190140.2154646-5-briannorris@chromium.org |
| Signed-off-by: Sasha Levin <sashal@kernel.org> |
| --- |
| kernel/irq/Kconfig | 1 + |
| 1 file changed, 1 insertion(+) |
| |
| diff --git a/kernel/irq/Kconfig b/kernel/irq/Kconfig |
| index 08088b8e95ae9..a75df2bb9db66 100644 |
| --- a/kernel/irq/Kconfig |
| +++ b/kernel/irq/Kconfig |
| @@ -147,6 +147,7 @@ config GENERIC_IRQ_KEXEC_CLEAR_VM_FORWARD |
| config IRQ_KUNIT_TEST |
| bool "KUnit tests for IRQ management APIs" if !KUNIT_ALL_TESTS |
| depends on KUNIT=y |
| + depends on SPARSE_IRQ |
| default KUNIT_ALL_TESTS |
| select IRQ_DOMAIN |
| imply SMP |
| -- |
| 2.51.0 |
| |
